LCOV - differential code coverage report
Current view: top level - src/fe_utils - psqlscan.l (source / functions) Coverage Total Hit UNC LBC UBC GBC GIC GNC CBC ECB DCB
Current: d36b728949bf4e37ada1cd23e0f2aaa94f609a70 vs 52e118fe2f7e3381bdaa479816a7f72eda2ae517 Lines: 83.7 % 603 505 1 97 3 1 56 445 28
Current Date: 2026-06-29 16:15:13 +0200 Functions: 100.0 % 22 22 8 14
Baseline: lcov-20260630-baseline Branches: 77.5 % 227 176 5 1 45 61 115 2
Baseline Date: 2026-06-29 13:01:57 +0200 Line coverage date bins:
Legend: Lines:     hit not hit
Branches: + taken - not taken # not executed
[..1] days: 100.0 % 1 1 1
(1,7] days: 100.0 % 53 53 53
(30,360] days: 100.0 % 3 3 3
(360..) days: 82.1 % 546 448 1 97 3 1 444
Function coverage date bins:
(1,7] days: 100.0 % 3 3 3
(360..) days: 100.0 % 19 19 5 14
Branch coverage date bins:
(1,7] days: 92.4 % 66 61 5 61
(360..) days: 70.6 % 163 115 1 45 115 2

 Age         Owner                    Branch data    TLA  Line data    Source code
                                  1                 :                : %top{
                                  2                 :                : /*-------------------------------------------------------------------------
                                  3                 :                :  *
                                  4                 :                :  * psqlscan.l
                                  5                 :                :  *    lexical scanner for SQL commands
                                  6                 :                :  *
                                  7                 :                :  * This lexer used to be part of psql, and that heritage is reflected in
                                  8                 :                :  * the file name as well as function and typedef names, though it can now
                                  9                 :                :  * be used by other frontend programs as well.  It's also possible to extend
                                 10                 :                :  * this lexer with a compatible add-on lexer to handle program-specific
                                 11                 :                :  * backslash commands.
                                 12                 :                :  *
                                 13                 :                :  * This code is mainly concerned with determining where the end of a SQL
                                 14                 :                :  * statement is: we are looking for semicolons that are not within quotes,
                                 15                 :                :  * comments, or parentheses.  The most reliable way to handle this is to
                                 16                 :                :  * borrow the backend's flex lexer rules, lock, stock, and barrel.  The rules
                                 17                 :                :  * below are (except for a few) the same as the backend's, but their actions
                                 18                 :                :  * are just ECHO whereas the backend's actions generally do other things.
                                 19                 :                :  *
                                 20                 :                :  * XXX The rules in this file must be kept in sync with the backend lexer!!!
                                 21                 :                :  *
                                 22                 :                :  * XXX Avoid creating backtracking cases --- see the backend lexer for info.
                                 23                 :                :  *
                                 24                 :                :  * See psqlscan_int.h for additional commentary.
                                 25                 :                :  *
                                 26                 :                :  *
                                 27                 :                :  * Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group
                                 28                 :                :  * Portions Copyright (c) 1994, Regents of the University of California
                                 29                 :                :  *
                                 30                 :                :  * IDENTIFICATION
                                 31                 :                :  *    src/fe_utils/psqlscan.l
                                 32                 :                :  *
                                 33                 :                :  *-------------------------------------------------------------------------
                                 34                 :                :  */
                                 35                 :                : #include "postgres_fe.h"
                                 36                 :                : 
                                 37                 :                : #include "common/logging.h"
                                 38                 :                : #include "fe_utils/psqlscan.h"
                                 39                 :                : 
                                 40                 :                : #include "libpq-fe.h"
                                 41                 :                : }
                                 42                 :                : 
                                 43                 :                : %{
                                 44                 :                : 
                                 45                 :                : /* LCOV_EXCL_START */
                                 46                 :                : 
                                 47                 :                : #include "fe_utils/psqlscan_int.h"
                                 48                 :                : 
                                 49                 :                : /*
                                 50                 :                :  * We must have a typedef YYSTYPE for yylex's first argument, but this lexer
                                 51                 :                :  * doesn't presently make use of that argument, so just declare it as int.
                                 52                 :                :  */
                                 53                 :                : typedef int YYSTYPE;
                                 54                 :                : 
                                 55                 :                : 
                                 56                 :                : /* Return values from yylex() */
                                 57                 :                : #define LEXRES_EOL          0   /* end of input */
                                 58                 :                : #define LEXRES_SEMI         1   /* command-terminating semicolon found */
                                 59                 :                : #define LEXRES_BACKSLASH    2   /* backslash command start */
                                 60                 :                : 
                                 61                 :                : 
                                 62                 :                : #define ECHO psqlscan_emit(cur_state, yytext, yyleng)
                                 63                 :                : 
                                 64                 :                : static void psqlscan_track_identifier(PsqlScanState state,
                                 65                 :                :                                       const char *identifier);
                                 66                 :                : 
                                 67                 :                : %}
                                 68                 :                : 
                                 69                 :                : %option reentrant
                                 70                 :                : %option bison-bridge
                                 71                 :                : %option 8bit
                                 72                 :                : %option never-interactive
                                 73                 :                : %option nodefault
                                 74                 :                : %option noinput
                                 75                 :                : %option nounput
                                 76                 :                : %option noyywrap
                                 77                 :                : %option warn
                                 78                 :                : %option prefix="psql_yy"
                                 79                 :                : 
                                 80                 :                : /*
                                 81                 :                :  * Set the type of yyextra; we use it as a pointer back to the containing
                                 82                 :                :  * PsqlScanState.
                                 83                 :                :  */
                                 84                 :                : %option extra-type="PsqlScanState"
                                 85                 :                : 
                                 86                 :                : /*
                                 87                 :                :  * All of the following definitions and rules should exactly match
                                 88                 :                :  * src/backend/parser/scan.l so far as the flex patterns are concerned.
                                 89                 :                :  * The rule bodies are just ECHO as opposed to what the backend does,
                                 90                 :                :  * however.  (But be sure to duplicate code that affects the lexing process,
                                 91                 :                :  * such as BEGIN() and yyless().)  Also, psqlscan uses a single <<EOF>> rule
                                 92                 :                :  * whereas scan.l has a separate one for each exclusive state.
                                 93                 :                :  */
                                 94                 :                : 
                                 95                 :                : /*
                                 96                 :                :  * OK, here is a short description of lex/flex rules behavior.
                                 97                 :                :  * The longest pattern which matches an input string is always chosen.
                                 98                 :                :  * For equal-length patterns, the first occurring in the rules list is chosen.
                                 99                 :                :  * INITIAL is the starting state, to which all non-conditional rules apply.
                                100                 :                :  * Exclusive states change parsing rules while the state is active.  When in
                                101                 :                :  * an exclusive state, only those rules defined for that state apply.
                                102                 :                :  *
                                103                 :                :  * We use exclusive states for quoted strings, extended comments,
                                104                 :                :  * and to eliminate parsing troubles for numeric strings.
                                105                 :                :  * Exclusive states:
                                106                 :                :  *  <xb> bit string literal
                                107                 :                :  *  <xc> extended C-style comments
                                108                 :                :  *  <xd> delimited identifiers (double-quoted identifiers)
                                109                 :                :  *  <xh> hexadecimal byte string
                                110                 :                :  *  <xq> standard quoted strings
                                111                 :                :  *  <xqs> quote stop (detect continued strings)
                                112                 :                :  *  <xe> extended quoted strings (support backslash escape sequences)
                                113                 :                :  *  <xdolq> $foo$ quoted strings
                                114                 :                :  *  <xui> quoted identifier with Unicode escapes
                                115                 :                :  *  <xus> quoted string with Unicode escapes
                                116                 :                :  *
                                117                 :                :  * Note: we intentionally don't mimic the backend's <xeu> state; we have
                                118                 :                :  * no need to distinguish it from <xe> state, and no good way to get out
                                119                 :                :  * of it in error cases.  The backend just throws yyerror() in those
                                120                 :                :  * cases, but that's not an option here.
                                121                 :                :  */
                                122                 :                : 
                                123                 :                : %x xb
                                124                 :                : %x xc
                                125                 :                : %x xd
                                126                 :                : %x xh
                                127                 :                : %x xq
                                128                 :                : %x xqs
                                129                 :                : %x xe
                                130                 :                : %x xdolq
                                131                 :                : %x xui
                                132                 :                : %x xus
                                133                 :                : 
                                134                 :                : /*
                                135                 :                :  * In order to make the world safe for Windows and Mac clients as well as
                                136                 :                :  * Unix ones, we accept either \n or \r as a newline.  A DOS-style \r\n
                                137                 :                :  * sequence will be seen as two successive newlines, but that doesn't cause
                                138                 :                :  * any problems.  Comments that start with -- and extend to the next
                                139                 :                :  * newline are treated as equivalent to a single whitespace character.
                                140                 :                :  *
                                141                 :                :  * NOTE a fine point: if there is no newline following --, we will absorb
                                142                 :                :  * everything to the end of the input as a comment.  This is correct.  Older
                                143                 :                :  * versions of Postgres failed to recognize -- as a comment if the input
                                144                 :                :  * did not end with a newline.
                                145                 :                :  *
                                146                 :                :  * non_newline_space tracks all space characters except newlines.
                                147                 :                :  *
                                148                 :                :  * XXX if you change the set of whitespace characters, fix scanner_isspace()
                                149                 :                :  * to agree.
                                150                 :                :  */
                                151                 :                : 
                                152                 :                : space               [ \t\n\r\f\v]
                                153                 :                : non_newline_space   [ \t\f\v]
                                154                 :                : newline             [\n\r]
                                155                 :                : non_newline         [^\n\r]
                                156                 :                : 
                                157                 :                : comment         ("--"{non_newline}*)
                                158                 :                : 
                                159                 :                : whitespace      ({space}+|{comment})
                                160                 :                : 
                                161                 :                : /*
                                162                 :                :  * SQL requires at least one newline in the whitespace separating
                                163                 :                :  * string literals that are to be concatenated.  Silly, but who are we
                                164                 :                :  * to argue?  Note that {whitespace_with_newline} should not have * after
                                165                 :                :  * it, whereas {whitespace} should generally have a * after it...
                                166                 :                :  */
                                167                 :                : 
                                168                 :                : special_whitespace      ({space}+|{comment}{newline})
                                169                 :                : non_newline_whitespace  ({non_newline_space}|{comment})
                                170                 :                : whitespace_with_newline ({non_newline_whitespace}*{newline}{special_whitespace}*)
                                171                 :                : 
                                172                 :                : quote           '
                                173                 :                : /* If we see {quote} then {quotecontinue}, the quoted string continues */
                                174                 :                : quotecontinue   {whitespace_with_newline}{quote}
                                175                 :                : 
                                176                 :                : /*
                                177                 :                :  * {quotecontinuefail} is needed to avoid lexer backup when we fail to match
                                178                 :                :  * {quotecontinue}.  It might seem that this could just be {whitespace}*,
                                179                 :                :  * but if there's a dash after {whitespace_with_newline}, it must be consumed
                                180                 :                :  * to see if there's another dash --- which would start a {comment} and thus
                                181                 :                :  * allow continuation of the {quotecontinue} token.
                                182                 :                :  */
                                183                 :                : quotecontinuefail   {whitespace}*"-"?
                                184                 :                : 
                                185                 :                : /* Bit string
                                186                 :                :  * It is tempting to scan the string for only those characters
                                187                 :                :  * which are allowed. However, this leads to silently swallowed
                                188                 :                :  * characters if illegal characters are included in the string.
                                189                 :                :  * For example, if xbinside is [01] then B'ABCD' is interpreted
                                190                 :                :  * as a zero-length string, and the ABCD' is lost!
                                191                 :                :  * Better to pass the string forward and let the input routines
                                192                 :                :  * validate the contents.
                                193                 :                :  */
                                194                 :                : xbstart         [bB]{quote}
                                195                 :                : xbinside        [^']*
                                196                 :                : 
                                197                 :                : /* Hexadecimal byte string */
                                198                 :                : xhstart         [xX]{quote}
                                199                 :                : xhinside        [^']*
                                200                 :                : 
                                201                 :                : /* National character */
                                202                 :                : xnstart         [nN]{quote}
                                203                 :                : 
                                204                 :                : /* Quoted string that allows backslash escapes */
                                205                 :                : xestart         [eE]{quote}
                                206                 :                : xeinside        [^\\']+
                                207                 :                : xeescape        [\\][^0-7]
                                208                 :                : xeoctesc        [\\][0-7]{1,3}
                                209                 :                : xehexesc        [\\]x[0-9A-Fa-f]{1,2}
                                210                 :                : xeunicode       [\\](u[0-9A-Fa-f]{4}|U[0-9A-Fa-f]{8})
                                211                 :                : xeunicodefail   [\\](u[0-9A-Fa-f]{0,3}|U[0-9A-Fa-f]{0,7})
                                212                 :                : 
                                213                 :                : /* Extended quote
                                214                 :                :  * xqdouble implements embedded quote, ''''
                                215                 :                :  */
                                216                 :                : xqstart         {quote}
                                217                 :                : xqdouble        {quote}{quote}
                                218                 :                : xqinside        [^']+
                                219                 :                : 
                                220                 :                : /* $foo$ style quotes ("dollar quoting")
                                221                 :                :  * The quoted string starts with $foo$ where "foo" is an optional string
                                222                 :                :  * in the form of an identifier, except that it may not contain "$",
                                223                 :                :  * and extends to the first occurrence of an identical string.
                                224                 :                :  * There is *no* processing of the quoted text.
                                225                 :                :  *
                                226                 :                :  * {dolqfailed} is an error rule to avoid scanner backup when {dolqdelim}
                                227                 :                :  * fails to match its trailing "$".
                                228                 :                :  */
                                229                 :                : dolq_start      [A-Za-z\200-\377_]
                                230                 :                : dolq_cont       [A-Za-z\200-\377_0-9]
                                231                 :                : dolqdelim       \$({dolq_start}{dolq_cont}*)?\$
                                232                 :                : dolqfailed      \${dolq_start}{dolq_cont}*
                                233                 :                : dolqinside      [^$]+
                                234                 :                : 
                                235                 :                : /* Double quote
                                236                 :                :  * Allows embedded spaces and other special characters into identifiers.
                                237                 :                :  */
                                238                 :                : dquote          \"
                                239                 :                : xdstart         {dquote}
                                240                 :                : xdstop          {dquote}
                                241                 :                : xddouble        {dquote}{dquote}
                                242                 :                : xdinside        [^"]+
                                243                 :                : 
                                244                 :                : /* Quoted identifier with Unicode escapes */
                                245                 :                : xuistart        [uU]&{dquote}
                                246                 :                : 
                                247                 :                : /* Quoted string with Unicode escapes */
                                248                 :                : xusstart        [uU]&{quote}
                                249                 :                : 
                                250                 :                : /* error rule to avoid backup */
                                251                 :                : xufailed        [uU]&
                                252                 :                : 
                                253                 :                : 
                                254                 :                : /* C-style comments
                                255                 :                :  *
                                256                 :                :  * The "extended comment" syntax closely resembles allowable operator syntax.
                                257                 :                :  * The tricky part here is to get lex to recognize a string starting with
                                258                 :                :  * slash-star as a comment, when interpreting it as an operator would produce
                                259                 :                :  * a longer match --- remember lex will prefer a longer match!  Also, if we
                                260                 :                :  * have something like plus-slash-star, lex will think this is a 3-character
                                261                 :                :  * operator whereas we want to see it as a + operator and a comment start.
                                262                 :                :  * The solution is two-fold:
                                263                 :                :  * 1. append {op_chars}* to xcstart so that it matches as much text as
                                264                 :                :  *    {operator} would. Then the tie-breaker (first matching rule of same
                                265                 :                :  *    length) ensures xcstart wins.  We put back the extra stuff with yyless()
                                266                 :                :  *    in case it contains a star-slash that should terminate the comment.
                                267                 :                :  * 2. In the operator rule, check for slash-star within the operator, and
                                268                 :                :  *    if found throw it back with yyless().  This handles the plus-slash-star
                                269                 :                :  *    problem.
                                270                 :                :  * Dash-dash comments have similar interactions with the operator rule.
                                271                 :                :  */
                                272                 :                : xcstart         \/\*{op_chars}*
                                273                 :                : xcstop          \*+\/
                                274                 :                : xcinside        [^*/]+
                                275                 :                : 
                                276                 :                : ident_start     [A-Za-z\200-\377_]
                                277                 :                : ident_cont      [A-Za-z\200-\377_0-9\$]
                                278                 :                : 
                                279                 :                : identifier      {ident_start}{ident_cont}*
                                280                 :                : 
                                281                 :                : /* Assorted special-case operators and operator-like tokens */
                                282                 :                : typecast        "::"
                                283                 :                : dot_dot         \.\.
                                284                 :                : colon_equals    ":="
                                285                 :                : 
                                286                 :                : /*
                                287                 :                :  * These operator-like tokens (unlike the above ones) also match the {operator}
                                288                 :                :  * rule, which means that they might be overridden by a longer match if they
                                289                 :                :  * are followed by a comment start or a + or - character. Accordingly, if you
                                290                 :                :  * add to this list, you must also add corresponding code to the {operator}
                                291                 :                :  * block to return the correct token in such cases. (This is not needed in
                                292                 :                :  * psqlscan.l since the token value is ignored there.)
                                293                 :                :  */
                                294                 :                : equals_greater  "=>"
                                295                 :                : less_equals     "<="
                                296                 :                : greater_equals  ">="
                                297                 :                : less_greater    "<>"
                                298                 :                : not_equals      "!="
                                299                 :                : /* Note there is no need for left_arrow, since "<-" is not a single operator. */
                                300                 :                : right_arrow     "->"
                                301                 :                : 
                                302                 :                : /*
                                303                 :                :  * "self" is the set of chars that should be returned as single-character
                                304                 :                :  * tokens.  "op_chars" is the set of chars that can make up "Op" tokens,
                                305                 :                :  * which can be one or more characters long (but if a single-char token
                                306                 :                :  * appears in the "self" set, it is not to be returned as an Op).  Note
                                307                 :                :  * that the sets overlap, but each has some chars that are not in the other.
                                308                 :                :  *
                                309                 :                :  * If you change either set, adjust the character lists appearing in the
                                310                 :                :  * rule for "operator"!
                                311                 :                :  */
                                312                 :                : self            [,()\[\].;\:\|\+\-\*\/\%\^\<\>\=]
                                313                 :                : op_chars        [\~\!\@\#\^\&\|\`\?\+\-\*\/\%\<\>\=]
                                314                 :                : operator        {op_chars}+
                                315                 :                : 
                                316                 :                : /*
                                317                 :                :  * Numbers
                                318                 :                :  *
                                319                 :                :  * Unary minus is not part of a number here.  Instead we pass it separately to
                                320                 :                :  * the parser, and there it gets coerced via doNegate().
                                321                 :                :  *
                                322                 :                :  * {numericfail} is used because we would like "1..10" to lex as 1, dot_dot, 10.
                                323                 :                :  *
                                324                 :                :  * {realfail} is added to prevent the need for scanner
                                325                 :                :  * backup when the {real} rule fails to match completely.
                                326                 :                :  */
                                327                 :                : decdigit        [0-9]
                                328                 :                : hexdigit        [0-9A-Fa-f]
                                329                 :                : octdigit        [0-7]
                                330                 :                : bindigit        [0-1]
                                331                 :                : 
                                332                 :                : decinteger      {decdigit}(_?{decdigit})*
                                333                 :                : hexinteger      0[xX](_?{hexdigit})+
                                334                 :                : octinteger      0[oO](_?{octdigit})+
                                335                 :                : bininteger      0[bB](_?{bindigit})+
                                336                 :                : 
                                337                 :                : hexfail         0[xX]_?
                                338                 :                : octfail         0[oO]_?
                                339                 :                : binfail         0[bB]_?
                                340                 :                : 
                                341                 :                : numeric         (({decinteger}\.{decinteger}?)|(\.{decinteger}))
                                342                 :                : numericfail     {decinteger}\.\.
                                343                 :                : 
                                344                 :                : real            ({decinteger}|{numeric})[Ee][-+]?{decinteger}
                                345                 :                : realfail        ({decinteger}|{numeric})[Ee][-+]
                                346                 :                : 
                                347                 :                : /* Positional parameters don't accept underscores. */
                                348                 :                : param           \${decdigit}+
                                349                 :                : 
                                350                 :                : /*
                                351                 :                :  * An identifier immediately following an integer literal is disallowed because
                                352                 :                :  * in some cases it's ambiguous what is meant: for example, 0x1234 could be
                                353                 :                :  * either a hexinteger or a decinteger "0" and an identifier "x1234".  We can
                                354                 :                :  * detect such problems by seeing if integer_junk matches a longer substring
                                355                 :                :  * than any of the XXXinteger patterns (decinteger, hexinteger, octinteger,
                                356                 :                :  * bininteger).  One "junk" pattern is sufficient because
                                357                 :                :  * {decinteger}{identifier} will match all the same strings we'd match with
                                358                 :                :  * {hexinteger}{identifier} etc.
                                359                 :                :  *
                                360                 :                :  * Note that the rule for integer_junk must appear after the ones for
                                361                 :                :  * XXXinteger to make this work correctly: 0x1234 will match both hexinteger
                                362                 :                :  * and integer_junk, and we need hexinteger to be chosen in that case.
                                363                 :                :  *
                                364                 :                :  * Also disallow strings matched by numeric_junk, real_junk and param_junk
                                365                 :                :  * for consistency.
                                366                 :                :  */
                                367                 :                : integer_junk    {decinteger}{identifier}
                                368                 :                : numeric_junk    {numeric}{identifier}
                                369                 :                : real_junk       {real}{identifier}
                                370                 :                : param_junk      \${decdigit}+{identifier}
                                371                 :                : 
                                372                 :                : /* psql-specific: characters allowed in variable names */
                                373                 :                : variable_char   [A-Za-z\200-\377_0-9]
                                374                 :                : 
                                375                 :                : other           .
                                376                 :                : 
                                377                 :                : /*
                                378                 :                :  * Dollar quoted strings are totally opaque, and no escaping is done on them.
                                379                 :                :  * Other quoted strings must allow some special characters such as single-quote
                                380                 :                :  *  and newline.
                                381                 :                :  * Embedded single-quotes are implemented both in the SQL standard
                                382                 :                :  *  style of two adjacent single quotes "''" and in the Postgres/Java style
                                383                 :                :  *  of escaped-quote "\'".
                                384                 :                :  * Other embedded escaped characters are matched explicitly and the leading
                                385                 :                :  *  backslash is dropped from the string.
                                386                 :                :  * Note that xcstart must appear before operator, as explained above!
                                387                 :                :  *  Also whitespace (comment) must appear before operator.
                                388                 :                :  */
                                389                 :                : 
                                390                 :                : %%
                                391                 :                : 
                                392                 :                : %{
                                393                 :                :         /* Declare some local variables inside yylex(), for convenience */
                                394                 :                :         PsqlScanState cur_state = yyextra;
 3756 tgl@sss.pgh.pa.us         395                 :CBC      801077 :         PQExpBuffer output_buf = cur_state->output_buf;
                                396                 :         801077 : 
                                397                 :                :         /*
                                398                 :                :          * Force flex into the state indicated by start_state.  This has a
                                399                 :                :          * couple of purposes: it lets some of the functions below set a new
                                400                 :                :          * starting state without ugly direct access to flex variables, and it
                                401                 :                :          * allows us to transition from one flex lexer to another so that we
                                402                 :                :          * can lex different parts of the source string using separate lexers.
                                403                 :                :          */
                                404                 :                :         BEGIN(cur_state->start_state);
                                405                 :         801077 : %}
                                406                 :                : 
                                407                 :                : {whitespace}    {
                                408                 :                :                     /*
                                409                 :                :                      * Note that the whitespace rule includes both true
                                410                 :                :                      * whitespace and single-line ("--" style) comments.
                                411                 :                :                      * We suppress whitespace until we have collected some
                                412                 :                :                      * non-whitespace data.  (This interacts with some
                                413                 :                :                      * decisions in MainLoop(); see there for details.)
                                414                 :                :                      */
                                415                 :                :                     if (output_buf->len > 0)
 8167                           416         [ +  + ]:        1907209 :                         ECHO;
                                417                 :        1793977 :                 }
                                418                 :                : 
                                419                 :        1907209 : {xcstart}       {
                                420                 :            448 :                     cur_state->xcdepth = 0;
                                421                 :            448 :                     BEGIN(xc);
                                422                 :            448 :                     /* Put back any characters past slash-star; see above */
                                423                 :                :                     yyless(2);
                                424                 :            448 :                     ECHO;
                                425                 :            448 :                 }
                                426                 :                : 
 2786                           427                 :            448 : <xc>{
                                428                 :                : {xcstart}       {
 8167                           429                 :             12 :                     cur_state->xcdepth++;
                                430                 :             12 :                     /* Put back any characters past slash-star; see above */
                                431                 :                :                     yyless(2);
                                432                 :             12 :                     ECHO;
                                433                 :             12 :                 }
                                434                 :                : 
 2786                           435                 :             12 : {xcstop}        {
 8167                           436                 :            460 :                     if (cur_state->xcdepth <= 0)
                                437         [ +  + ]:            460 :                         BEGIN(INITIAL);
                                438                 :            448 :                     else
                                439                 :                :                         cur_state->xcdepth--;
                                440                 :             12 :                     ECHO;
                                441                 :            460 :                 }
                                442                 :                : 
 2786                           443                 :            460 : {xcinside}      {
 8167                           444                 :           1029 :                     ECHO;
                                445                 :           1029 :                 }
                                446                 :                : 
 2786                           447                 :           1029 : {op_chars}      {
 8167                           448                 :            277 :                     ECHO;
                                449                 :            277 :                 }
                                450                 :                : 
 2786                           451                 :            277 : \*+             {
 7705 tgl@sss.pgh.pa.us         452                 :UBC           0 :                     ECHO;
                                453                 :              0 :                 }
                                454                 :                : } /* <xc> */
                                455                 :              0 : 
                                456                 :                : {xbstart}       {
 8167 tgl@sss.pgh.pa.us         457                 :CBC         500 :                     BEGIN(xb);
                                458                 :            500 :                     ECHO;
                                459                 :            500 :                 }
                                460                 :                : <xh>{xhinside}    |
                                461                 :            500 : <xb>{xbinside}    {
                                462                 :           2695 :                     ECHO;
                                463                 :           2695 :                 }
                                464                 :                : 
                                465                 :           2695 : {xhstart}       {
                                466                 :           2215 :                     /* Hexadecimal bit type.
                                467                 :                :                      * At some point we should simply pass the string
                                468                 :                :                      * forward to the parser and label it there.
                                469                 :                :                      * In the meantime, place a leading "x" on the string
                                470                 :                :                      * to mark it for the input routine as a hex string.
                                471                 :                :                      */
                                472                 :                :                     BEGIN(xh);
                                473                 :           2215 :                     ECHO;
                                474                 :           2215 :                 }
                                475                 :                : 
                                476                 :           2215 : {xnstart}       {
 3755 tgl@sss.pgh.pa.us         477                 :UBC           0 :                     yyless(1);  /* eat only 'n' this time */
 8167                           478                 :              0 :                     ECHO;
                                479                 :              0 :                 }
                                480                 :                : 
                                481                 :              0 : {xqstart}       {
 3756 tgl@sss.pgh.pa.us         482                 :CBC      159536 :                     if (cur_state->std_strings)
 7421 bruce@momjian.us          483         [ +  - ]:         159536 :                         BEGIN(xq);
                                484                 :         159536 :                     else
                                485                 :                :                         BEGIN(xe);
 8167 tgl@sss.pgh.pa.us         486                 :LBC        (54) :                     ECHO;
 8167 tgl@sss.pgh.pa.us         487                 :CBC      159536 :                 }
                                488                 :                : {xestart}       {
 7421 bruce@momjian.us          489                 :         159536 :                     BEGIN(xe);
 7674 tgl@sss.pgh.pa.us         490                 :            877 :                     ECHO;
                                491                 :            877 :                 }
                                492                 :                : {xusstart}      {
 6453 peter_e@gmx.net           493                 :            877 :                     BEGIN(xus);
                                494                 :            464 :                     ECHO;
                                495                 :            464 :                 }
                                496                 :                : 
 2360 tgl@sss.pgh.pa.us         497                 :            464 : <xb,xh,xq,xe,xus>{quote} {
                                498                 :         163592 :                     /*
                                499                 :                :                      * When we are scanning a quoted string and see an end
                                500                 :                :                      * quote, we must look ahead for a possible continuation.
                                501                 :                :                      * If we don't see one, we know the end quote was in fact
                                502                 :                :                      * the end of the string.  To reduce the lexer table size,
                                503                 :                :                      * we use a single "xqs" state to do the lookahead for all
                                504                 :                :                      * types of strings.
                                505                 :                :                      */
                                506                 :                :                     cur_state->state_before_str_stop = YYSTATE;
                                507                 :         163592 :                     BEGIN(xqs);
 4856 heikki.linnakangas@i      508                 :         163592 :                     ECHO;
                                509                 :         163592 :                 }
                                510                 :                : <xqs>{quotecontinue} {
 2360 tgl@sss.pgh.pa.us         511                 :         163592 :                     /*
 2360 tgl@sss.pgh.pa.us         512                 :UBC           0 :                      * Found a quote continuation, so return to the in-quote
                                513                 :                :                      * state and continue scanning the literal.  Nothing is
                                514                 :                :                      * added to the literal's contents.
                                515                 :                :                      */
                                516                 :                :                     BEGIN(cur_state->state_before_str_stop);
 4856 heikki.linnakangas@i      517                 :              0 :                     ECHO;
                                518                 :              0 :                 }
                                519                 :                : <xqs>{quotecontinuefail} |
 2360 tgl@sss.pgh.pa.us         520                 :              0 : <xqs>{other}  {
 2360 tgl@sss.pgh.pa.us         521                 :CBC      162771 :                     /*
                                522                 :                :                      * Failed to see a quote continuation.  Throw back
                                523                 :                :                      * everything after the end quote, and handle the string
                                524                 :                :                      * according to the state we were in previously.
                                525                 :                :                      */
                                526                 :                :                     yyless(0);
 6453 peter_e@gmx.net           527                 :         162771 :                     BEGIN(INITIAL);
 2360 tgl@sss.pgh.pa.us         528                 :         162771 :                     /* There's nothing to echo ... */
                                529                 :                :                 }
                                530                 :                : 
 6453 peter_e@gmx.net           531                 :         162771 : <xq,xe,xus>{xqdouble} {
 8167 tgl@sss.pgh.pa.us         532                 :           4127 :                     ECHO;
                                533                 :           4127 :                 }
                                534                 :                : <xq,xus>{xqinside}  {
                                535                 :           4127 :                     ECHO;
                                536                 :         167321 :                 }
                                537                 :                : <xe>{xeinside}  {
 7421 bruce@momjian.us          538                 :         167321 :                     ECHO;
                                539                 :           1663 :                 }
                                540                 :                : <xe>{xeunicode} {
 6120 tgl@sss.pgh.pa.us         541                 :           1663 :                     ECHO;
                                542                 :            132 :                 }
                                543                 :                : <xe>{xeunicodefail}   {
                                544                 :            132 :                     ECHO;
                                545                 :              8 :                 }
                                546                 :                : <xe>{xeescape}  {
 8167                           547                 :              8 :                     ECHO;
                                548                 :            962 :                 }
                                549                 :                : <xe>{xeoctesc}  {
                                550                 :            962 :                     ECHO;
                                551                 :             14 :                 }
                                552                 :                : <xe>{xehexesc}  {
 7698 bruce@momjian.us          553                 :             14 :                     ECHO;
                                554                 :              6 :                 }
                                555                 :                : <xe>.         {
 8162 tgl@sss.pgh.pa.us         556                 :              6 :                     /* This is only needed for \ just before EOF */
 8162 tgl@sss.pgh.pa.us         557                 :UBC           0 :                     ECHO;
                                558                 :              0 :                 }
                                559                 :                : 
                                560                 :              0 : {dolqdelim}     {
 8162 tgl@sss.pgh.pa.us         561                 :CBC        4580 :                     cur_state->dolqstart = pg_strdup(yytext);
                                562                 :           4580 :                     BEGIN(xdolq);
                                563                 :           4580 :                     ECHO;
                                564                 :           4580 :                 }
                                565                 :                : {dolqfailed}    {
 7705                           566                 :           4580 :                     /* throw back all but the initial "$" */
 7705 tgl@sss.pgh.pa.us         567                 :UBC           0 :                     yyless(1);
                                568                 :              0 :                     ECHO;
                                569                 :              0 :                 }
                                570                 :                : <xdolq>{dolqdelim} {
 8162                           571                 :              0 :                     if (strcmp(yytext, cur_state->dolqstart) == 0)
 8162 tgl@sss.pgh.pa.us         572         [ +  + ]:CBC        4796 :                     {
                                573                 :                :                         free(cur_state->dolqstart);
                                574                 :           4580 :                         cur_state->dolqstart = NULL;
                                575                 :           4580 :                         BEGIN(INITIAL);
                                576                 :           4580 :                     }
                                577                 :                :                     else
                                578                 :                :                     {
                                579                 :                :                         /*
                                580                 :                :                          * When we fail to match $...$ to dolqstart, transfer
                                581                 :                :                          * the $... part to the output, but put back the final
                                582                 :                :                          * $ for rescanning.  Consider $delim$...$junk$delim$
                                583                 :                :                          */
                                584                 :                :                         yyless(yyleng - 1);
                                585                 :            216 :                     }
                                586                 :                :                     ECHO;
                                587                 :           4796 :                 }
                                588                 :                : <xdolq>{dolqinside} {
                                589                 :           4796 :                     ECHO;
                                590                 :          24366 :                 }
                                591                 :                : <xdolq>{dolqfailed} {
 7705                           592                 :          24366 :                     ECHO;
                                593                 :            574 :                 }
                                594                 :                : <xdolq>.      {
 8162                           595                 :            574 :                     /* This is only needed for $ inside the quoted text */
                                596                 :           1632 :                     ECHO;
                                597                 :           1632 :                 }
                                598                 :                : 
 8167                           599                 :           1632 : {xdstart}       {
                                600                 :           6647 :                     BEGIN(xd);
                                601                 :           6647 :                     ECHO;
                                602                 :           6647 :                 }
                                603                 :                : {xuistart}      {
 6453 peter_e@gmx.net           604                 :           6647 :                     BEGIN(xui);
                                605                 :             16 :                     ECHO;
                                606                 :             16 :                 }
                                607                 :                : <xd>{xdstop}  {
 8167 tgl@sss.pgh.pa.us         608                 :             16 :                     BEGIN(INITIAL);
                                609                 :           6647 :                     ECHO;
                                610                 :           6647 :                 }
                                611                 :                : <xui>{dquote} {
 6453 peter_e@gmx.net           612                 :           6647 :                     BEGIN(INITIAL);
 8167 tgl@sss.pgh.pa.us         613                 :             16 :                     ECHO;
                                614                 :             16 :                 }
                                615                 :                : <xd,xui>{xddouble}    {
 6453 peter_e@gmx.net           616                 :             16 :                     ECHO;
                                617                 :             67 :                 }
                                618                 :                : <xd,xui>{xdinside}    {
                                619                 :             67 :                     ECHO;
                                620                 :           6724 :                 }
                                621                 :                : 
                                622                 :           6724 : {xufailed}  {
 6453 peter_e@gmx.net           623                 :UBC           0 :                     /* throw back all but the initial u/U */
                                624                 :                :                     yyless(1);
 8167 tgl@sss.pgh.pa.us         625                 :              0 :                     ECHO;
                                626                 :              0 :                 }
                                627                 :                : 
                                628                 :              0 : {typecast}      {
 8167 tgl@sss.pgh.pa.us         629                 :CBC       37187 :                     ECHO;
                                630                 :          37187 :                 }
                                631                 :                : 
 6120                           632                 :          37187 : {dot_dot}       {
 6120 tgl@sss.pgh.pa.us         633                 :UBC           0 :                     ECHO;
                                634                 :              0 :                 }
                                635                 :                : 
                                636                 :              0 : {colon_equals}  {
 6120 tgl@sss.pgh.pa.us         637                 :CBC        1673 :                     ECHO;
                                638                 :           1673 :                 }
                                639                 :                : 
 4130                           640                 :           1673 : {equals_greater} {
                                641                 :           1355 :                     ECHO;
                                642                 :           1355 :                 }
                                643                 :                : 
 4129                           644                 :           1355 : {less_equals}   {
                                645                 :           1551 :                     ECHO;
                                646                 :           1551 :                 }
                                647                 :                : 
                                648                 :           1551 : {greater_equals} {
                                649                 :           4198 :                     ECHO;
                                650                 :           4198 :                 }
                                651                 :                : 
                                652                 :           4198 : {less_greater}  {
                                653                 :            912 :                     ECHO;
                                654                 :            912 :                 }
                                655                 :                : 
                                656                 :            912 : {not_equals}    {
                                657                 :           1524 :                     ECHO;
                                658                 :           1524 :                 }
                                659                 :                : 
  106 peter@eisentraut.org      660                 :GNC        1524 : {right_arrow}   {
                                661                 :            781 :                     ECHO;
                                662                 :            781 :                 }
                                663                 :                : 
 8167 tgl@sss.pgh.pa.us         664                 :CBC         781 :     /*
                                665                 :                :      * These rules are specific to psql --- they implement parenthesis
                                666                 :                :      * counting and detection of command-ending semicolon.  These must
                                667                 :                :      * appear before the {self} rule so that they take precedence over it.
                                668                 :                :      */
                                669                 :                : 
                                670                 :         257909 : "("               {
                                671                 :                :                     cur_state->paren_depth++;
                                672                 :         257909 :                     ECHO;
                                673                 :         257909 :                 }
                                674                 :                : 
                                675                 :         257909 : ")"               {
                                676                 :         257900 :                     if (cur_state->paren_depth > 0)
                                677         [ +  - ]:         257900 :                         cur_state->paren_depth--;
                                678                 :         257900 :                     ECHO;
                                679                 :         257900 :                 }
                                680                 :                : 
                                681                 :         257900 : ";"               {
                                682                 :         245839 :                     ECHO;
    7 tgl@sss.pgh.pa.us         683                 :GNC      245839 :                     if (cur_state->paren_depth == 0 &&
                                684         [ +  + ]:         245839 :                         cur_state->begin_depth == 0)
 8167 tgl@sss.pgh.pa.us         685   [ +  +  +  + ]:CBC      245803 :                     {
                                686                 :                :                         /* Terminate lexing temporarily */
                                687                 :                :                         cur_state->start_state = YY_START;
    7 tgl@sss.pgh.pa.us         688                 :GNC      245676 :                         cur_state->init_idents_count = 0;
 8167 tgl@sss.pgh.pa.us         689                 :CBC      245676 :                         return LEXRES_SEMI;
                                690                 :         245676 :                     }
                                691                 :                :                 }
                                692                 :                : 
                                693                 :            163 :     /*
                                694                 :                :      * psql-specific rules to handle backslash commands and variable
                                695                 :                :      * substitution.  We want these before {self}, also.
                                696                 :                :      */
                                697                 :                : 
 2654 alvherre@alvh.no-ip.      698                 :            512 : "\\"[;:]      {
                                699                 :                :                     /* Force a semi-colon or colon into the query buffer */
                                700                 :                :                     psqlscan_emit(cur_state, yytext + 1, 1);
    7 tgl@sss.pgh.pa.us         701                 :GNC         512 :                     /* Reset BEGIN/END tracking if semi at outer level */
                                702                 :                :                     if (yytext[1] == ';' &&
                                703         [ +  - ]:            512 :                         cur_state->paren_depth == 0 &&
                                704         [ +  - ]:            512 :                         cur_state->begin_depth == 0)
                                705         [ +  - ]:            512 :                         cur_state->init_idents_count = 0;
 8167 tgl@sss.pgh.pa.us         706                 :CBC         512 :                 }
                                707                 :                : 
                                708                 :            512 : "\\"          {
                                709                 :          32823 :                     /* Terminate lexing temporarily */
                                710                 :                :                     cur_state->start_state = YY_START;
                                711                 :          32823 :                     return LEXRES_BACKSLASH;
                                712                 :          32823 :                 }
                                713                 :                : 
                                714                 :                : :{variable_char}+   {
                                715                 :           1796 :                     /* Possible psql variable substitution */
                                716                 :                :                     char       *varname;
                                717                 :                :                     char       *value;
                                718                 :                : 
                                719                 :                :                     varname = psqlscan_extract_substring(cur_state,
 3755                           720                 :           1796 :                                                          yytext + 1,
                                721                 :           1796 :                                                          yyleng - 1);
 3756                           722                 :           1796 :                     if (cur_state->callbacks->get_variable)
                                723         [ +  + ]:           1796 :                         value = cur_state->callbacks->get_variable(varname,
 3377                           724                 :           1200 :                                                                    PQUOTE_PLAIN,
                                725                 :                :                                                                    cur_state->cb_passthrough);
                                726                 :                :                     else
                                727                 :                :                         value = NULL;
 8167                           728                 :            596 : 
                                729                 :                :                     if (value)
                                730         [ +  + ]:           1796 :                     {
                                731                 :                :                         /* It is a variable, check for recursion */
                                732                 :                :                         if (psqlscan_var_is_current_source(cur_state, varname))
 5900                           733         [ -  + ]:            892 :                         {
                                734                 :                :                             /* Recursive expansion --- don't go there */
                                735                 :                :                             pg_log_warning("skipping recursive expansion of variable \"%s\"",
 3756 tgl@sss.pgh.pa.us         736                 :UBC           0 :                                                               varname);
                                737                 :                :                             /* Instead copy the string as is */
                                738                 :                :                             ECHO;
 5900                           739                 :              0 :                         }
                                740                 :                :                         else
                                741                 :                :                         {
                                742                 :                :                             /* OK, perform substitution */
                                743                 :                :                             psqlscan_push_new_buffer(cur_state, value, varname);
 5900 tgl@sss.pgh.pa.us         744                 :CBC         892 :                             /* yy_scan_string already made buffer active */
                                745                 :                :                         }
                                746                 :                :                         free(value);
 8167                           747                 :            892 :                     }
                                748                 :                :                     else
                                749                 :                :                     {
                                750                 :                :                         /*
                                751                 :                :                          * if the variable doesn't exist we'll copy the string
                                752                 :                :                          * as is
                                753                 :                :                          */
                                754                 :                :                         ECHO;
                                755                 :            904 :                     }
                                756                 :                : 
                                757                 :                :                     free(varname);
                                758                 :           1796 :                 }
                                759                 :                : 
 5422                           760                 :           1796 : :'{variable_char}+' {
 3377                           761                 :            656 :                     psqlscan_escape_variable(cur_state, yytext, yyleng,
                                762                 :            656 :                                              PQUOTE_SQL_LITERAL);
                                763                 :                :                 }
                                764                 :                : 
 5422                           765                 :            656 : :\"{variable_char}+\" {
 3377                           766                 :             21 :                     psqlscan_escape_variable(cur_state, yytext, yyleng,
                                767                 :             21 :                                              PQUOTE_SQL_IDENT);
                                768                 :                :                 }
                                769                 :                : 
 3204 andrew@dunslane.net       770                 :             21 : :\{\?{variable_char}+\} {
                                771                 :              8 :                     psqlscan_test_variable(cur_state, yytext, yyleng);
                                772                 :              8 :                 }
                                773                 :                : 
 5423 tgl@sss.pgh.pa.us         774                 :              8 :     /*
                                775                 :                :      * These rules just avoid the need for scanner backup if one of the
                                776                 :                :      * three rules above fails to match completely.
                                777                 :                :      */
                                778                 :                : 
 5422 tgl@sss.pgh.pa.us         779                 :UBC           0 : :'{variable_char}*  {
                                780                 :                :                     /* Throw back everything but the colon */
                                781                 :                :                     yyless(1);
 5423                           782                 :              0 :                     ECHO;
                                783                 :              0 :                 }
                                784                 :                : 
 5422                           785                 :              0 : :\"{variable_char}*    {
 5423                           786                 :              0 :                     /* Throw back everything but the colon */
                                787                 :                :                     yyless(1);
                                788                 :              0 :                     ECHO;
                                789                 :              0 :                 }
                                790                 :                : 
 3204 andrew@dunslane.net       791                 :              0 : :\{\?{variable_char}*   {
                                792                 :              0 :                     /* Throw back everything but the colon */
                                793                 :                :                     yyless(1);
                                794                 :              0 :                     ECHO;
                                795                 :              0 :                 }
                                796                 :                : :\{ {
                                797                 :              0 :                     /* Throw back everything but the colon */
                                798                 :              0 :                     yyless(1);
                                799                 :              0 :                     ECHO;
                                800                 :              0 :                 }
                                801                 :                : 
 8167 tgl@sss.pgh.pa.us         802                 :              0 :     /*
                                803                 :                :      * Back to backend-compatible rules.
                                804                 :                :      */
                                805                 :                : 
 8167 tgl@sss.pgh.pa.us         806                 :CBC      448936 : {self}          {
                                807                 :                :                     ECHO;
                                808                 :         448936 :                 }
                                809                 :                : 
                                810                 :         448936 : {operator}      {
                                811                 :          12754 :                     /*
                                812                 :                :                      * Check for embedded slash-star or dash-dash; those
                                813                 :                :                      * are comment starts, so operator must stop there.
                                814                 :                :                      * Note that slash-star or dash-dash at the first
                                815                 :                :                      * character will match a prior rule, not this one.
                                816                 :                :                      */
                                817                 :                :                     int         nchars = yyleng;
 3755                           818                 :          12754 :                     char       *slashstar = strstr(yytext, "/*");
                                819                 :          12754 :                     char       *dashdash = strstr(yytext, "--");
 8167                           820                 :          12754 : 
                                821                 :                :                     if (slashstar && dashdash)
                                822   [ +  +  -  + ]:          12754 :                     {
                                823                 :                :                         /* if both appear, take the first one */
                                824                 :                :                         if (slashstar > dashdash)
 8167 tgl@sss.pgh.pa.us         825         [ #  # ]:UBC           0 :                             slashstar = dashdash;
                                826                 :              0 :                     }
                                827                 :                :                     else if (!slashstar)
 8167 tgl@sss.pgh.pa.us         828         [ +  + ]:CBC       12754 :                         slashstar = dashdash;
                                829                 :          12714 :                     if (slashstar)
                                830         [ +  + ]:          12754 :                         nchars = slashstar - yytext;
                                831                 :             48 : 
                                832                 :                :                     /*
                                833                 :                :                      * For SQL compatibility, '+' and '-' cannot be the
                                834                 :                :                      * last char of a multi-char operator unless the operator
                                835                 :                :                      * contains chars that are not in SQL operators.
                                836                 :                :                      * The idea is to lex '=-' as two operators, but not
                                837                 :                :                      * to forbid operator names like '?-' that could not be
                                838                 :                :                      * sequences of SQL operators.
                                839                 :                :                      */
                                840                 :                :                     if (nchars > 1 &&
 2868 rhodiumtoad@postgres      841         [ +  + ]:          12754 :                         (yytext[nchars - 1] == '+' ||
                                842         [ +  + ]:          11724 :                          yytext[nchars - 1] == '-'))
 8167 tgl@sss.pgh.pa.us         843         [ +  + ]:          11720 :                     {
                                844                 :                :                         int         ic;
                                845                 :                : 
                                846                 :                :                         for (ic = nchars - 2; ic >= 0; ic--)
                                847         [ +  + ]:            385 :                         {
                                848                 :                :                             char c = yytext[ic];
 2868 rhodiumtoad@postgres      849                 :            326 :                             if (c == '~' || c == '!' || c == '@' ||
                                850   [ +  -  +  +  :            326 :                                 c == '#' || c == '^' || c == '&' ||
                                        +  -  +  + ]
                                851   [ +  -  +  -  :            270 :                                 c == '|' || c == '`' || c == '?' ||
                                              +  + ]
                                852   [ +  -  +  +  :            106 :                                 c == '%')
                                              +  - ]
                                853                 :                :                                 break;
                                854                 :                :                         }
                                855                 :                :                         if (ic < 0)
                                856         [ +  + ]:            291 :                         {
                                857                 :                :                             /*
                                858                 :                :                              * didn't find a qualifying character, so remove
                                859                 :                :                              * all trailing [+-]
                                860                 :                :                              */
                                861                 :                :                             do {
                                862                 :                :                                 nchars--;
                                863                 :             59 :                             } while (nchars > 1 &&
                                864         [ +  + ]:             59 :                                  (yytext[nchars - 1] == '+' ||
                                865         [ -  + ]:             23 :                                   yytext[nchars - 1] == '-'));
                                866         [ -  + ]:             23 :                         }
                                867                 :                :                     }
                                868                 :                : 
                                869                 :                :                     if (nchars < yyleng)
 8167 tgl@sss.pgh.pa.us         870         [ +  + ]:          12754 :                     {
                                871                 :                :                         /* Strip the unwanted chars from the token */
                                872                 :                :                         yyless(nchars);
                                873                 :            107 :                     }
                                874                 :                :                     ECHO;
                                875                 :          12754 :                 }
                                876                 :                : 
                                877                 :          12754 : {param}         {
                                878                 :            924 :                     ECHO;
                                879                 :            924 :                 }
                                880                 :                : {param_junk}    {
 1595 peter@eisentraut.org      881                 :            924 :                     ECHO;
                                882                 :              8 :                 }
                                883                 :                : 
 1294                           884                 :              8 : {decinteger}    {
                                885                 :         142602 :                     ECHO;
                                886                 :         142602 :                 }
                                887                 :                : {hexinteger}    {
                                888                 :         142602 :                     ECHO;
                                889                 :             83 :                 }
                                890                 :                : {octinteger}    {
                                891                 :             83 :                     ECHO;
                                892                 :             40 :                 }
                                893                 :                : {bininteger}    {
                                894                 :             40 :                     ECHO;
                                895                 :             40 :                 }
                                896                 :                : {hexfail}       {
 8167 tgl@sss.pgh.pa.us         897                 :             40 :                     ECHO;
                                898                 :              4 :                 }
                                899                 :                : {octfail}       {
                                900                 :              4 :                     ECHO;
                                901                 :              4 :                 }
                                902                 :                : {binfail}       {
 1294 peter@eisentraut.org      903                 :              4 :                     ECHO;
                                904                 :              4 :                 }
                                905                 :                : {numeric}       {
                                906                 :              4 :                     ECHO;
                                907                 :           5335 :                 }
                                908                 :                : {numericfail}   {
 6074 tgl@sss.pgh.pa.us         909                 :           5335 :                     /* throw back the .., and treat as integer */
 3755 tgl@sss.pgh.pa.us         910                 :UBC           0 :                     yyless(yyleng - 2);
 6074                           911                 :              0 :                     ECHO;
                                912                 :              0 :                 }
                                913                 :                : {real}          {
 8167                           914                 :              0 :                     ECHO;
 8167 tgl@sss.pgh.pa.us         915                 :CBC         506 :                 }
                                916                 :                : {realfail}      {
 7705                           917                 :            506 :                     ECHO;
                                918                 :              4 :                 }
                                919                 :                : {integer_junk}  {
 1595 peter@eisentraut.org      920                 :              4 :                     ECHO;
                                921                 :             44 :                 }
                                922                 :                : {numeric_junk}  {
                                923                 :             44 :                     ECHO;
                                924                 :             32 :                 }
                                925                 :                : {real_junk}     {
 7705 tgl@sss.pgh.pa.us         926                 :             32 :                     ECHO;
 7705 tgl@sss.pgh.pa.us         927                 :UBC           0 :                 }
                                928                 :                : 
 8167                           929                 :              0 : 
 8167 tgl@sss.pgh.pa.us         930                 :CBC     1853602 : {identifier}    {
                                931                 :                :                     psqlscan_track_identifier(cur_state, yytext);
 8167 tgl@sss.pgh.pa.us         932                 :GIC     1853602 :                     ECHO;
 8167 tgl@sss.pgh.pa.us         933                 :CBC     1853602 :                 }
                                934                 :                : 
                                935                 :        1853602 : {other}         {
 8167 tgl@sss.pgh.pa.us         936                 :GBC           8 :                     ECHO;
                                937                 :              8 :                 }
                                938                 :                : 
                                939                 :              8 : <<EOF>>         {
 3755 tgl@sss.pgh.pa.us         940                 :CBC      523470 :                     if (cur_state->buffer_stack == NULL)
 3756                           941         [ +  + ]:         523470 :                     {
                                942                 :                :                         cur_state->start_state = YY_START;
 3755                           943                 :         522578 :                         return LEXRES_EOL;      /* end of input reached */
 3756                           944                 :         522578 :                     }
                                945                 :                : 
                                946                 :                :                     /*
                                947                 :                :                      * We were expanding a variable, so pop the inclusion
                                948                 :                :                      * stack and keep lexing
                                949                 :                :                      */
                                950                 :                :                     psqlscan_pop_buffer_stack(cur_state);
 3755                           951                 :            892 :                     psqlscan_select_top_buffer(cur_state);
 8167                           952                 :            892 :                 }
                                953                 :                : 
                                954                 :            892 : %%
 8167 tgl@sss.pgh.pa.us         955                 :UBC           0 : 
                                956                 :                : /* LCOV_EXCL_STOP */
                                957                 :                : 
                                958                 :                : /*
                                959                 :                :  * Record the first few keywords/identifiers of a statement or CREATE
                                960                 :                :  * SCHEMA sub-statement in the idents[] array, of length idents_size.
                                961                 :                :  * *idents_count is the number of entries filled so far.
                                962                 :                :  *
                                963                 :                :  * We record the interesting keywords using their first character, which
                                964                 :                :  * works so long as those are all different.  We could switch to an enum
                                965                 :                :  * if that stops being true, but for now this is easy and compact.
                                966                 :                :  */
                                967                 :                : static void
                                968                 :                : psqlscan_record_initial_keyword(const char *identifier,
    7 tgl@sss.pgh.pa.us         969                 :GNC     1401927 :                                 char *idents,
                                970                 :                :                                 int idents_size,
                                971                 :                :                                 int *idents_count)
                                972                 :                : {
                                973                 :                :     if (*idents_count < idents_size)
                                974         [ +  + ]:        1401927 :     {
                                975                 :                :         /*
                                976                 :                :          * What we need to recognize is CREATE [OR REPLACE] FUNCTION/PROCEDURE
                                977                 :                :          * and CREATE SCHEMA.  Checking for SCHEMA is useless but not harmful
                                978                 :                :          * in the CREATE SCHEMA sub-statement case.
                                979                 :                :          */
                                980                 :                :         if (pg_strcasecmp(identifier, "create") == 0 ||
                                981   [ +  +  +  + ]:        1628342 :             pg_strcasecmp(identifier, "function") == 0 ||
                                982         [ +  + ]:        1577851 :             pg_strcasecmp(identifier, "procedure") == 0 ||
                                983         [ +  + ]:        1570733 :             pg_strcasecmp(identifier, "or") == 0 ||
                                984         [ +  + ]:        1568944 :             pg_strcasecmp(identifier, "replace") == 0 ||
                                985         [ +  + ]:        1566032 :             pg_strcasecmp(identifier, "schema") == 0)
                                986                 :         782285 :             idents[*idents_count] = pg_tolower((unsigned char) identifier[0]);
                                987                 :          55739 :         /* For other keywords or identifiers, leave '\0' in the array entry */
                                988                 :                :         (*idents_count)++;
                                989                 :         836027 :     }
                                990                 :                : }
                                991                 :        1401927 : 
                                992                 :                : /*
                                993                 :                :  * Does the current input match CREATE [OR REPLACE] {FUNCTION|PROCEDURE}?
                                994                 :                :  */
                                995                 :                : static bool
                                996                 :                : psqlscan_is_create_routine(const char *idents)
                                997                 :        1401947 : {
                                998                 :                :     return idents[0] == 'c' &&
                                999         [ +  + ]:        1704144 :         (idents[1] == 'f' || idents[1] == 'p' ||
                               1000   [ +  +  +  + ]:         302197 :          (idents[1] == 'o' && idents[2] == 'r' &&
                               1001   [ +  +  +  + ]:         271713 :           (idents[3] == 'f' || idents[3] == 'p')));
                               1002   [ +  +  +  + ]:          12446 : }
                               1003                 :                : 
                               1004                 :                : /*
                               1005                 :                :  * Track whether we are inside a BEGIN .. END block in a function definition,
                               1006                 :                :  * so that semicolons contained therein don't terminate the whole statement.
                               1007                 :                :  * Short of writing a full parser here, the following heuristic should work.
                               1008                 :                :  *
                               1009                 :                :  * We track whether the beginning of the statement matches CREATE [OR REPLACE]
                               1010                 :                :  * {FUNCTION|PROCEDURE}.  For CREATE SCHEMA, track BEGIN .. END blocks only
                               1011                 :                :  * after recognizing an embedded CREATE [OR REPLACE] {FUNCTION|PROCEDURE}
                               1012                 :                :  * subcommand.  Once one of these conditions holds, count BEGIN and END
                               1013                 :                :  * pairs.  We also have to account for CASE ... END.
                               1014                 :                :  */
                               1015                 :                : static void
                               1016                 :                : psqlscan_track_identifier(PsqlScanState state, const char *identifier)
                               1017                 :        1853602 : {
                               1018                 :                :     bool        is_create_schema;
                               1019                 :                : 
                               1020                 :                :     /* None of this needs to happen when we're inside parentheses */
                               1021                 :                :     if (state->paren_depth != 0)
                               1022         [ +  + ]:        1853602 :         return;
                               1023                 :         456322 : 
                               1024                 :                :     /* Reset all my state at the start of each new statement */
                               1025                 :                :     if (state->init_idents_count == 0)
                               1026         [ +  + ]:        1397280 :     {
                               1027                 :                :         memset(state->init_idents, 0, sizeof(state->init_idents));
                               1028                 :         252529 :         state->sub_idents_count = 0;
                               1029                 :         252529 :         memset(state->sub_idents, 0, sizeof(state->sub_idents));
                               1030                 :         252529 :     }
                               1031                 :                : 
                               1032                 :                :     /* Record initial keywords if init_idents_count is small enough */
                               1033                 :                :     psqlscan_record_initial_keyword(identifier,
                               1034                 :        1397280 :                                     state->init_idents,
                               1035                 :        1397280 :                                     lengthof(state->init_idents),
                               1036                 :                :                                     &state->init_idents_count);
                               1037                 :                : 
                               1038                 :                :     /*
                               1039                 :                :      * In CREATE SCHEMA, track identifiers from each top-level CREATE schema
                               1040                 :                :      * element separately, so that BEGIN/END tracking is enabled only within
                               1041                 :                :      * CREATE [OR REPLACE] {FUNCTION|PROCEDURE} clauses.
                               1042                 :                :      */
                               1043                 :                :     is_create_schema = (state->init_idents[0] == 'c' &&
                               1044         [ +  + ]:        1696332 :                         state->init_idents[1] == 's');
                               1045         [ +  + ]:         299052 :     if (is_create_schema &&
                               1046         [ +  + ]:        1397280 :         state->begin_depth == 0)
                               1047         [ +  + ]:           4667 :     {
                               1048                 :                :         /* Reset sub-clause state at each top-level CREATE keyword */
                               1049                 :                :         if (pg_strcasecmp(identifier, "create") == 0)
                               1050         [ +  + ]:           4647 :         {
                               1051                 :                :             state->sub_idents_count = 0;
                               1052                 :            500 :             memset(state->sub_idents, 0, sizeof(state->sub_idents));
                               1053                 :            500 :         }
                               1054                 :                :         /* ... and record the first few keywords following that */
                               1055                 :                :         psqlscan_record_initial_keyword(identifier,
                               1056                 :           4647 :                                         state->sub_idents,
                               1057                 :           4647 :                                         lengthof(state->sub_idents),
                               1058                 :                :                                         &state->sub_idents_count);
                               1059                 :                :     }
                               1060                 :                : 
                               1061                 :                :     /*
                               1062                 :                :      * Track BEGIN/CASE/END only when within an appropriate (sub) statement.
                               1063                 :                :      */
                               1064                 :                :     if (psqlscan_is_create_routine(state->init_idents) ||
                               1065   [ +  +  +  + ]:        1397280 :         (is_create_schema &&
                               1066         [ +  + ]:           4667 :          psqlscan_is_create_routine(state->sub_idents)))
                               1067                 :           4667 :     {
                               1068                 :                :         if (pg_strcasecmp(identifier, "begin") == 0)
                               1069         [ +  + ]:          38520 :             state->begin_depth++;
                               1070                 :            115 :         else if (pg_strcasecmp(identifier, "case") == 0)
                               1071         [ +  + ]:          38405 :         {
                               1072                 :                :             /*
                               1073                 :                :              * CASE also ends with END.  We only need to track this if we are
                               1074                 :                :              * already inside a BEGIN.
                               1075                 :                :              */
                               1076                 :                :             if (state->begin_depth >= 1)
                               1077         [ +  - ]:              4 :                 state->begin_depth++;
                               1078                 :              4 :         }
                               1079                 :                :         else if (pg_strcasecmp(identifier, "end") == 0)
                               1080         [ +  + ]:          38401 :         {
                               1081                 :                :             if (state->begin_depth > 0)
                               1082         [ +  - ]:            119 :                 state->begin_depth--;
                               1083                 :            119 :         }
                               1084                 :                :     }
                               1085                 :                : }
                               1086                 :                : 
                               1087                 :                : /*
                               1088                 :                :  * Create a lexer working state struct.
                               1089                 :                :  *
                               1090                 :                :  * callbacks is a struct of function pointers that encapsulate some
                               1091                 :                :  * behavior we need from the surrounding program.  This struct must
                               1092                 :                :  * remain valid for the lifespan of the PsqlScanState.
                               1093                 :                :  */
                               1094                 :                : PsqlScanState
                               1095                 :                : psql_scan_create(const PsqlScanCallbacks *callbacks)
 8167 tgl@sss.pgh.pa.us        1096                 :CBC       10648 : {
                               1097                 :                :     PsqlScanState state;
                               1098                 :                : 
                               1099                 :                :     state = pg_malloc0_object(PsqlScanStateData);
                               1100                 :          10648 : 
                               1101                 :                :     state->callbacks = callbacks;
 3756                          1102                 :          10648 : 
                               1103                 :                :     yylex_init(&state->scanner);
 3755                          1104                 :          10648 : 
                               1105                 :                :     yyset_extra(state, state->scanner);
 3756                          1106                 :          10648 : 
                               1107                 :                :     psql_scan_reset(state);
 8167                          1108                 :          10648 : 
                               1109                 :                :     return state;
                               1110                 :          10648 : }
                               1111                 :                : 
                               1112                 :                : /*
                               1113                 :                :  * Destroy a lexer working state struct, releasing all resources.
                               1114                 :                :  */
                               1115                 :                : void
                               1116                 :                : psql_scan_destroy(PsqlScanState state)
                               1117                 :          10592 : {
                               1118                 :                :     psql_scan_finish(state);
                               1119                 :          10592 : 
                               1120                 :                :     psql_scan_reset(state);
 8162                          1121                 :          10592 : 
                               1122                 :                :     yylex_destroy(state->scanner);
 3756                          1123                 :          10592 : 
                               1124                 :                :     free(state);
 8167                          1125                 :          10592 : }
                               1126                 :          10592 : 
                               1127                 :                : /*
                               1128                 :                :  * Set the callback passthrough pointer for the lexer.
                               1129                 :                :  *
                               1130                 :                :  * This could have been integrated into psql_scan_create, but keeping it
                               1131                 :                :  * separate allows the application to change the pointer later, which might
                               1132                 :                :  * be useful.
                               1133                 :                :  */
                               1134                 :                : void
                               1135                 :                : psql_scan_set_passthrough(PsqlScanState state, void *passthrough)
 3396                          1136                 :          10049 : {
                               1137                 :                :     state->cb_passthrough = passthrough;
                               1138                 :          10049 : }
                               1139                 :          10049 : 
                               1140                 :                : /*
                               1141                 :                :  * Set up to perform lexing of the given input line.
                               1142                 :                :  *
                               1143                 :                :  * The text at *line, extending for line_len bytes, will be scanned by
                               1144                 :                :  * subsequent calls to the psql_scan routines.  psql_scan_finish should
                               1145                 :                :  * be called when scanning is complete.  Note that the lexer retains
                               1146                 :                :  * a pointer to the storage at *line --- this string must not be altered
                               1147                 :                :  * or freed until after psql_scan_finish is called.
                               1148                 :                :  *
                               1149                 :                :  * encoding is the libpq identifier for the character encoding in use,
                               1150                 :                :  * and std_strings says whether standard_conforming_strings is on.
                               1151                 :                :  */
                               1152                 :                : void
                               1153                 :                : psql_scan_setup(PsqlScanState state,
 3756                          1154                 :         522925 :                 const char *line, int line_len,
                               1155                 :                :                 int encoding, bool std_strings)
                               1156                 :                : {
                               1157                 :                :     /* Mustn't be scanning already */
                               1158                 :                :     Assert(state->scanbufhandle == NULL);
 4946 andrew@dunslane.net      1159         [ -  + ]:         522925 :     Assert(state->buffer_stack == NULL);
 8167 tgl@sss.pgh.pa.us        1160         [ -  + ]:         522925 : 
                               1161                 :                :     /* Do we need to hack the character set encoding? */
                               1162                 :                :     state->encoding = encoding;
 3756                          1163                 :         522925 :     state->safe_encoding = pg_valid_server_encoding_id(encoding);
                               1164                 :         522925 : 
                               1165                 :                :     /* Save standard-strings flag as well */
                               1166                 :                :     state->std_strings = std_strings;
 8167                          1167                 :         522925 : 
                               1168                 :                :     /* Set up flex input buffer with appropriate translation and padding */
                               1169                 :                :     state->scanbufhandle = psqlscan_prepare_buffer(state, line, line_len,
 3755                          1170                 :         522925 :                                                    &state->scanbuf);
                               1171                 :                :     state->scanline = line;
 8167                          1172                 :         522925 : 
                               1173                 :                :     /* Set lookaside data in case we have to map unsafe encoding */
                               1174                 :                :     state->curline = state->scanbuf;
                               1175                 :         522925 :     state->refline = state->scanline;
  488                          1176                 :         522925 : 
                               1177                 :                :     /* Initialize state for psql_scan_get_location() */
                               1178                 :                :     state->cur_line_no = 0;      /* yylex not called yet */
                               1179                 :         522925 :     state->cur_line_ptr = state->scanbuf;
 8167                          1180                 :         522925 : }
                               1181                 :         522925 : 
                               1182                 :                : /*
                               1183                 :                :  * Do lexical analysis of SQL command text.
                               1184                 :                :  *
                               1185                 :                :  * The text previously passed to psql_scan_setup is scanned, and appended
                               1186                 :                :  * (possibly with transformation) to query_buf.
                               1187                 :                :  *
                               1188                 :                :  * The return value indicates the condition that stopped scanning:
                               1189                 :                :  *
                               1190                 :                :  * PSCAN_SEMICOLON: found a command-ending semicolon.  (The semicolon is
                               1191                 :                :  * transferred to query_buf.)  The command accumulated in query_buf should
                               1192                 :                :  * be executed, then clear query_buf and call again to scan the remainder
                               1193                 :                :  * of the line.
                               1194                 :                :  *
                               1195                 :                :  * PSCAN_BACKSLASH: found a backslash that starts a special command.
                               1196                 :                :  * Any previous data on the line has been transferred to query_buf.
                               1197                 :                :  * The caller will typically next apply a separate flex lexer to scan
                               1198                 :                :  * the special command.
                               1199                 :                :  *
                               1200                 :                :  * PSCAN_INCOMPLETE: the end of the line was reached, but we have an
                               1201                 :                :  * incomplete SQL command.  *prompt is set to the appropriate prompt type.
                               1202                 :                :  *
                               1203                 :                :  * PSCAN_EOL: the end of the line was reached, and there is no lexical
                               1204                 :                :  * reason to consider the command incomplete.  The caller may or may not
                               1205                 :                :  * choose to send it.  *prompt is set to the appropriate prompt type if
                               1206                 :                :  * the caller chooses to collect more input.
                               1207                 :                :  *
                               1208                 :                :  * In the PSCAN_INCOMPLETE and PSCAN_EOL cases, psql_scan_finish() should
                               1209                 :                :  * be called next, then the cycle may be repeated with a fresh input line.
                               1210                 :                :  *
                               1211                 :                :  * In all cases, *prompt is set to an appropriate prompt type code for the
                               1212                 :                :  * next line-input operation.
                               1213                 :                :  */
                               1214                 :                : PsqlScanResult
                               1215                 :                : psql_scan(PsqlScanState state,
                               1216                 :         801077 :           PQExpBuffer query_buf,
                               1217                 :                :           promptStatus_t *prompt)
                               1218                 :                : {
                               1219                 :                :     PsqlScanResult result;
                               1220                 :                :     int         lexresult;
                               1221                 :                : 
                               1222                 :                :     /* Must be scanning already */
                               1223                 :                :     Assert(state->scanbufhandle != NULL);
                               1224         [ -  + ]:         801077 : 
                               1225                 :                :     /* Set current output target */
                               1226                 :                :     state->output_buf = query_buf;
                               1227                 :         801077 : 
                               1228                 :                :     /* Set input source */
                               1229                 :                :     if (state->buffer_stack != NULL)
 3756                          1230         [ +  + ]:         801077 :         yy_switch_to_buffer(state->buffer_stack->buf, state->scanner);
 8167                          1231                 :             60 :     else
                               1232                 :                :         yy_switch_to_buffer(state->scanbufhandle, state->scanner);
                               1233                 :         801017 : 
                               1234                 :                :     /* And lex. */
                               1235                 :                :     lexresult = yylex(NULL, state->scanner);
                               1236                 :         801077 : 
                               1237                 :                :     /* Notify psql_scan_get_location() that a yylex call has been made. */
                               1238                 :                :     if (state->cur_line_no == 0)
  488                          1239         [ +  + ]:         801077 :         state->cur_line_no = 1;
                               1240                 :         522923 : 
                               1241                 :                :     /*
                               1242                 :                :      * Check termination state and return appropriate result info.
                               1243                 :                :      */
                               1244                 :                :     switch (lexresult)
 8167                          1245   [ +  +  +  - ]:         801077 :     {
                               1246                 :                :         case LEXRES_EOL:        /* end of input */
                               1247                 :         522578 :             switch (state->start_state)
                               1248   [ +  -  +  +  :         522578 :             {
                                     -  +  +  +  -  
                                              -  - ]
                               1249                 :                :                 case INITIAL:
 2360                          1250                 :         490702 :                 case xqs:       /* we treat this like INITIAL */
                               1251                 :                :                     if (state->paren_depth > 0)
 8167                          1252         [ +  + ]:         490702 :                     {
                               1253                 :                :                         result = PSCAN_INCOMPLETE;
                               1254                 :          43176 :                         *prompt = PROMPT_PAREN;
                               1255                 :          43176 :                     }
                               1256                 :                :                     else if (state->begin_depth > 0)
 1910 peter@eisentraut.org     1257         [ +  + ]:         447526 :                     {
                               1258                 :                :                         result = PSCAN_INCOMPLETE;
                               1259                 :            673 :                         *prompt = PROMPT_CONTINUE;
                               1260                 :            673 :                     }
                               1261                 :                :                     else if (query_buf->len > 0)
 8167 tgl@sss.pgh.pa.us        1262         [ +  + ]:         446853 :                     {
                               1263                 :                :                         result = PSCAN_EOL;
                               1264                 :          94843 :                         *prompt = PROMPT_CONTINUE;
                               1265                 :          94843 :                     }
                               1266                 :                :                     else
                               1267                 :                :                     {
                               1268                 :                :                         /* never bother to send an empty buffer */
                               1269                 :                :                         result = PSCAN_INCOMPLETE;
                               1270                 :         352010 :                         *prompt = PROMPT_READY;
                               1271                 :         352010 :                     }
                               1272                 :                :                     break;
                               1273                 :         490702 :                 case xb:
 8167 tgl@sss.pgh.pa.us        1274                 :UBC           0 :                     result = PSCAN_INCOMPLETE;
                               1275                 :              0 :                     *prompt = PROMPT_SINGLEQUOTE;
                               1276                 :              0 :                     break;
                               1277                 :              0 :                 case xc:
 8167 tgl@sss.pgh.pa.us        1278                 :CBC         513 :                     result = PSCAN_INCOMPLETE;
                               1279                 :            513 :                     *prompt = PROMPT_COMMENT;
                               1280                 :            513 :                     break;
                               1281                 :            513 :                 case xd:
                               1282                 :             23 :                     result = PSCAN_INCOMPLETE;
                               1283                 :             23 :                     *prompt = PROMPT_DOUBLEQUOTE;
                               1284                 :             23 :                     break;
                               1285                 :             23 :                 case xh:
 8167 tgl@sss.pgh.pa.us        1286                 :UBC           0 :                     result = PSCAN_INCOMPLETE;
                               1287                 :              0 :                     *prompt = PROMPT_SINGLEQUOTE;
                               1288                 :              0 :                     break;
 5726                          1289                 :              0 :                 case xe:
 8167 tgl@sss.pgh.pa.us        1290                 :CBC         301 :                     result = PSCAN_INCOMPLETE;
                               1291                 :            301 :                     *prompt = PROMPT_SINGLEQUOTE;
                               1292                 :            301 :                     break;
 5726                          1293                 :            301 :                 case xq:
 7421 bruce@momjian.us         1294                 :           7046 :                     result = PSCAN_INCOMPLETE;
                               1295                 :           7046 :                     *prompt = PROMPT_SINGLEQUOTE;
                               1296                 :           7046 :                     break;
 8162 tgl@sss.pgh.pa.us        1297                 :           7046 :                 case xdolq:
                               1298                 :          23993 :                     result = PSCAN_INCOMPLETE;
                               1299                 :          23993 :                     *prompt = PROMPT_DOLLARQUOTE;
                               1300                 :          23993 :                     break;
 5726                          1301                 :          23993 :                 case xui:
 5726 tgl@sss.pgh.pa.us        1302                 :UBC           0 :                     result = PSCAN_INCOMPLETE;
                               1303                 :              0 :                     *prompt = PROMPT_DOUBLEQUOTE;
                               1304                 :              0 :                     break;
                               1305                 :              0 :                 case xus:
                               1306                 :              0 :                     result = PSCAN_INCOMPLETE;
                               1307                 :              0 :                     *prompt = PROMPT_SINGLEQUOTE;
                               1308                 :              0 :                     break;
 8167                          1309                 :              0 :                 default:
                               1310                 :              0 :                     /* can't get here */
                               1311                 :                :                     fprintf(stderr, "invalid YY_START\n");
                               1312                 :              0 :                     exit(1);
                               1313                 :              0 :             }
                               1314                 :                :             break;
 8167 tgl@sss.pgh.pa.us        1315                 :CBC      522578 :         case LEXRES_SEMI:       /* semicolon */
                               1316                 :         245676 :             result = PSCAN_SEMICOLON;
                               1317                 :         245676 :             *prompt = PROMPT_READY;
                               1318                 :         245676 :             break;
                               1319                 :         245676 :         case LEXRES_BACKSLASH:  /* backslash */
                               1320                 :          32823 :             result = PSCAN_BACKSLASH;
                               1321                 :          32823 :             *prompt = PROMPT_READY;
                               1322                 :          32823 :             break;
                               1323                 :          32823 :         default:
 8167 tgl@sss.pgh.pa.us        1324                 :UBC           0 :             /* can't get here */
                               1325                 :                :             fprintf(stderr, "invalid yylex result\n");
                               1326                 :              0 :             exit(1);
                               1327                 :              0 :     }
                               1328                 :                : 
                               1329                 :                :     return result;
 8167 tgl@sss.pgh.pa.us        1330                 :CBC      801077 : }
                               1331                 :                : 
                               1332                 :                : /*
                               1333                 :                :  * Clean up after scanning a string.  This flushes any unread input and
                               1334                 :                :  * releases resources (but not the PsqlScanState itself).  Note however
                               1335                 :                :  * that this does not reset the lexer scan state; that can be done by
                               1336                 :                :  * psql_scan_reset(), which is an orthogonal operation.
                               1337                 :                :  *
                               1338                 :                :  * It is legal to call this when not scanning anything (makes it easier
                               1339                 :                :  * to deal with error recovery).
                               1340                 :                :  */
                               1341                 :                : void
                               1342                 :                : psql_scan_finish(PsqlScanState state)
                               1343                 :         533146 : {
                               1344                 :                :     /* Drop any incomplete variable expansions. */
                               1345                 :                :     while (state->buffer_stack != NULL)
 3755                          1346         [ -  + ]:         533146 :         psqlscan_pop_buffer_stack(state);
 8167 tgl@sss.pgh.pa.us        1347                 :UBC           0 : 
                               1348                 :                :     /* Done with the outer scan buffer, too */
                               1349                 :                :     if (state->scanbufhandle)
 3756 tgl@sss.pgh.pa.us        1350         [ +  + ]:CBC      533146 :         yy_delete_buffer(state->scanbufhandle, state->scanner);
 8167                          1351                 :         522870 :     state->scanbufhandle = NULL;
                               1352                 :         533146 :     if (state->scanbuf)
                               1353         [ +  + ]:         533146 :         free(state->scanbuf);
                               1354                 :         522870 :     state->scanbuf = NULL;
                               1355                 :         533146 : }
                               1356                 :         533146 : 
                               1357                 :                : /*
                               1358                 :                :  * Reset lexer scanning state to start conditions.  This is appropriate
                               1359                 :                :  * for executing \r psql commands (or any other time that we discard the
                               1360                 :                :  * prior contents of query_buf).  It is not, however, necessary to do this
                               1361                 :                :  * when we execute and clear the buffer after getting a PSCAN_SEMICOLON or
                               1362                 :                :  * PSCAN_EOL scan result, because the scan state must be INITIAL when those
                               1363                 :                :  * conditions are returned.
                               1364                 :                :  *
                               1365                 :                :  * Note that this is unrelated to flushing unread input; that task is
                               1366                 :                :  * done by psql_scan_finish().
                               1367                 :                :  */
                               1368                 :                : void
                               1369                 :                : psql_scan_reset(PsqlScanState state)
                               1370                 :          23566 : {
                               1371                 :                :     state->start_state = INITIAL;
                               1372                 :          23566 :     state->paren_depth = 0;
                               1373                 :          23566 :     state->xcdepth = 0;          /* not really necessary */
 8162                          1374                 :          23566 :     if (state->dolqstart)
                               1375         [ -  + ]:          23566 :         free(state->dolqstart);
 8162 tgl@sss.pgh.pa.us        1376                 :UBC           0 :     state->dolqstart = NULL;
 1910 peter@eisentraut.org     1377                 :CBC       23566 :     state->begin_depth = 0;
    7 tgl@sss.pgh.pa.us        1378                 :GNC       23566 :     state->init_idents_count = 0;
 8167 tgl@sss.pgh.pa.us        1379                 :CBC       23566 : }
                               1380                 :          23566 : 
                               1381                 :                : /*
                               1382                 :                :  * Reselect this lexer (psqlscan.l) after using another one.
                               1383                 :                :  *
                               1384                 :                :  * Currently and for foreseeable uses, it's sufficient to reset to INITIAL
                               1385                 :                :  * state, because we'd never switch to another lexer in a different state.
                               1386                 :                :  * However, we don't want to reset e.g. paren_depth, so this can't be
                               1387                 :                :  * the same as psql_scan_reset().
                               1388                 :                :  *
                               1389                 :                :  * Note: psql setjmp error recovery just calls psql_scan_reset(), so that
                               1390                 :                :  * must be a superset of this.
                               1391                 :                :  *
                               1392                 :                :  * Note: it seems likely that other lexers could just assign INITIAL for
                               1393                 :                :  * themselves, since that probably has the value zero in every flex-generated
                               1394                 :                :  * lexer.  But let's not assume that.
                               1395                 :                :  */
                               1396                 :                : void
                               1397                 :                : psql_scan_reselect_sql_lexer(PsqlScanState state)
                               1398                 :         155644 : {
                               1399                 :                :     state->start_state = INITIAL;
                               1400                 :         155644 : }
                               1401                 :         155644 : 
                               1402                 :                : /*
                               1403                 :                :  * Return true if lexer is currently in an "inside quotes" state.
                               1404                 :                :  *
                               1405                 :                :  * This is pretty grotty but is needed to preserve the old behavior
                               1406                 :                :  * that mainloop.c drops blank lines not inside quotes without even
                               1407                 :                :  * echoing them.
                               1408                 :                :  */
                               1409                 :                : bool
                               1410                 :                : psql_scan_in_quote(PsqlScanState state)
 5422                          1411                 :         100491 : {
                               1412                 :                :     return state->start_state != INITIAL &&
  552 peter@eisentraut.org     1413         [ +  + ]:         101111 :         state->start_state != xqs;
 5422 tgl@sss.pgh.pa.us        1414         [ +  + ]:            620 : }
                               1415                 :                : 
                               1416                 :                : /*
                               1417                 :                :  * Return the current scanning location (end+1 of last scanned token),
                               1418                 :                :  * as a line number counted from 1 and an offset from string start.
                               1419                 :                :  *
                               1420                 :                :  * This considers only the outermost input string, and therefore is of
                               1421                 :                :  * limited use for programs that use psqlscan_push_new_buffer().
                               1422                 :                :  *
                               1423                 :                :  * It would be a bit easier probably to use "%option yylineno" to count
                               1424                 :                :  * lines, but the flex manual says that has a performance cost, and only
                               1425                 :                :  * a minority of programs using psqlscan have need for this functionality.
                               1426                 :                :  * So we implement it ourselves without adding overhead to the lexer itself.
                               1427                 :                :  */
                               1428                 :                : void
                               1429                 :                : psql_scan_get_location(PsqlScanState state,
  488                          1430                 :           1737 :                        int *lineno, int *offset)
                               1431                 :                : {
                               1432                 :                :     const char *line_end;
                               1433                 :                : 
                               1434                 :                :     /*
                               1435                 :                :      * We rely on flex's having stored a NUL after the current token in
                               1436                 :                :      * scanbuf.  Therefore we must specially handle the state before yylex()
                               1437                 :                :      * has been called, when obviously that won't have happened yet.
                               1438                 :                :      */
                               1439                 :                :     if (state->cur_line_no == 0)
                               1440         [ -  + ]:           1737 :     {
                               1441                 :                :         *lineno = 1;
  488 tgl@sss.pgh.pa.us        1442                 :UBC           0 :         *offset = 0;
                               1443                 :              0 :         return;
                               1444                 :              0 :     }
                               1445                 :                : 
                               1446                 :                :     /*
                               1447                 :                :      * Advance cur_line_no/cur_line_ptr past whatever has been lexed so far.
                               1448                 :                :      * Doing this prevents repeated calls from being O(N^2) for long inputs.
                               1449                 :                :      */
                               1450                 :                :     while ((line_end = strchr(state->cur_line_ptr, '\n')) != NULL)
  488 tgl@sss.pgh.pa.us        1451         [ +  + ]:CBC        2210 :     {
                               1452                 :                :         state->cur_line_no++;
                               1453                 :            473 :         state->cur_line_ptr = line_end + 1;
                               1454                 :            473 :     }
                               1455                 :                :     state->cur_line_ptr += strlen(state->cur_line_ptr);
                               1456                 :           1737 : 
                               1457                 :                :     /* Report current location. */
                               1458                 :                :     *lineno = state->cur_line_no;
                               1459                 :           1737 :     *offset = state->cur_line_ptr - state->scanbuf;
                               1460                 :           1737 : }
                               1461                 :                : 
                               1462                 :                : /*
                               1463                 :                :  * Push the given string onto the stack of stuff to scan.
                               1464                 :                :  *
                               1465                 :                :  * NOTE SIDE EFFECT: the new buffer is made the active flex input buffer.
                               1466                 :                :  */
                               1467                 :                : void
                               1468                 :                : psqlscan_push_new_buffer(PsqlScanState state, const char *newstr,
 3755                          1469                 :            892 :                          const char *varname)
                               1470                 :                : {
                               1471                 :                :     StackElem  *stackelem;
                               1472                 :                : 
                               1473                 :                :     stackelem = pg_malloc_object(StackElem);
 5900                          1474                 :            892 : 
                               1475                 :                :     /*
                               1476                 :                :      * In current usage, the passed varname points at the current flex input
                               1477                 :                :      * buffer; we must copy it before calling psqlscan_prepare_buffer()
                               1478                 :                :      * because that will change the buffer state.
                               1479                 :                :      */
                               1480                 :                :     stackelem->varname = varname ? pg_strdup(varname) : NULL;
                               1481         [ +  - ]:            892 : 
                               1482                 :                :     stackelem->buf = psqlscan_prepare_buffer(state, newstr, strlen(newstr),
 3755                          1483                 :            892 :                                              &stackelem->bufstring);
                               1484                 :                :     state->curline = stackelem->bufstring;
 3756                          1485                 :            892 :     if (state->safe_encoding)
 8167                          1486         [ +  - ]:            892 :     {
                               1487                 :                :         stackelem->origstring = NULL;
 3756                          1488                 :            892 :         state->refline = stackelem->bufstring;
 8167                          1489                 :            892 :     }
                               1490                 :                :     else
                               1491                 :                :     {
                               1492                 :                :         stackelem->origstring = pg_strdup(newstr);
 3756 tgl@sss.pgh.pa.us        1493                 :UBC           0 :         state->refline = stackelem->origstring;
 8167                          1494                 :              0 :     }
                               1495                 :                :     stackelem->next = state->buffer_stack;
 3756 tgl@sss.pgh.pa.us        1496                 :CBC         892 :     state->buffer_stack = stackelem;
 8167                          1497                 :            892 : }
                               1498                 :            892 : 
                               1499                 :                : /*
                               1500                 :                :  * Pop the topmost buffer stack item (there must be one!)
                               1501                 :                :  *
                               1502                 :                :  * NB: after this, the flex input state is unspecified; caller must
                               1503                 :                :  * switch to an appropriate buffer to continue lexing.
                               1504                 :                :  * See psqlscan_select_top_buffer().
                               1505                 :                :  */
                               1506                 :                : void
                               1507                 :                : psqlscan_pop_buffer_stack(PsqlScanState state)
 5900                          1508                 :            892 : {
                               1509                 :                :     StackElem  *stackelem = state->buffer_stack;
                               1510                 :            892 : 
                               1511                 :                :     state->buffer_stack = stackelem->next;
 3756                          1512                 :            892 :     yy_delete_buffer(stackelem->buf, state->scanner);
 5900                          1513                 :            892 :     free(stackelem->bufstring);
                               1514                 :            892 :     if (stackelem->origstring)
                               1515         [ -  + ]:            892 :         free(stackelem->origstring);
 5900 tgl@sss.pgh.pa.us        1516                 :UBC           0 :     if (stackelem->varname)
 5900 tgl@sss.pgh.pa.us        1517         [ +  - ]:CBC         892 :         free(stackelem->varname);
                               1518                 :            892 :     free(stackelem);
                               1519                 :            892 : }
                               1520                 :            892 : 
                               1521                 :                : /*
                               1522                 :                :  * Select the topmost surviving buffer as the active input.
                               1523                 :                :  */
                               1524                 :                : void
                               1525                 :                : psqlscan_select_top_buffer(PsqlScanState state)
 3755                          1526                 :            892 : {
                               1527                 :                :     StackElem  *stackelem = state->buffer_stack;
                               1528                 :            892 : 
                               1529                 :                :     if (stackelem != NULL)
                               1530         [ -  + ]:            892 :     {
                               1531                 :                :         yy_switch_to_buffer(stackelem->buf, state->scanner);
 3755 tgl@sss.pgh.pa.us        1532                 :UBC           0 :         state->curline = stackelem->bufstring;
                               1533                 :              0 :         state->refline = stackelem->origstring ? stackelem->origstring : stackelem->bufstring;
                               1534         [ #  # ]:              0 :     }
                               1535                 :                :     else
                               1536                 :                :     {
                               1537                 :                :         yy_switch_to_buffer(state->scanbufhandle, state->scanner);
 3755 tgl@sss.pgh.pa.us        1538                 :CBC         892 :         state->curline = state->scanbuf;
                               1539                 :            892 :         state->refline = state->scanline;
                               1540                 :            892 :     }
                               1541                 :                : }
                               1542                 :            892 : 
                               1543                 :                : /*
                               1544                 :                :  * Check if specified variable name is the source for any string
                               1545                 :                :  * currently being scanned
                               1546                 :                :  */
                               1547                 :                : bool
                               1548                 :                : psqlscan_var_is_current_source(PsqlScanState state, const char *varname)
 5900                          1549                 :            892 : {
                               1550                 :                :     StackElem  *stackelem;
                               1551                 :                : 
                               1552                 :                :     for (stackelem = state->buffer_stack;
                               1553                 :            892 :          stackelem != NULL;
                               1554         [ -  + ]:            892 :          stackelem = stackelem->next)
 5900 tgl@sss.pgh.pa.us        1555                 :UBC           0 :     {
                               1556                 :                :         if (stackelem->varname && strcmp(stackelem->varname, varname) == 0)
                               1557   [ #  #  #  # ]:              0 :             return true;
                               1558                 :              0 :     }
                               1559                 :                :     return false;
 5900 tgl@sss.pgh.pa.us        1560                 :CBC         892 : }
                               1561                 :                : 
                               1562                 :                : /*
                               1563                 :                :  * Set up a flex input buffer to scan the given data.  We always make a
                               1564                 :                :  * copy of the data.  If working in an unsafe encoding, the copy has
                               1565                 :                :  * multibyte sequences replaced by FFs to avoid fooling the lexer rules.
                               1566                 :                :  *
                               1567                 :                :  * NOTE SIDE EFFECT: the new buffer is made the active flex input buffer.
                               1568                 :                :  */
                               1569                 :                : YY_BUFFER_STATE
                               1570                 :                : psqlscan_prepare_buffer(PsqlScanState state, const char *txt, int len,
 3755                          1571                 :         523817 :                         char **txtcopy)
                               1572                 :                : {
                               1573                 :                :     char       *newtxt;
                               1574                 :                : 
                               1575                 :                :     /* Flex wants two \0 characters after the actual data */
                               1576                 :                :     newtxt = pg_malloc_array(char, (len + 2));
 8167                          1577                 :         523817 :     *txtcopy = newtxt;
                               1578                 :         523817 :     newtxt[len] = newtxt[len + 1] = YY_END_OF_BUFFER_CHAR;
                               1579                 :         523817 : 
                               1580                 :                :     if (state->safe_encoding)
                               1581         [ +  + ]:         523817 :         memcpy(newtxt, txt, len);
                               1582                 :         523677 :     else
                               1583                 :                :     {
                               1584                 :                :         /* Gotta do it the hard way */
                               1585                 :                :         int         i = 0;
                               1586                 :            140 : 
                               1587                 :                :         while (i < len)
                               1588         [ +  + ]:            808 :         {
                               1589                 :                :             int         thislen = PQmblen(txt + i, state->encoding);
                               1590                 :            668 : 
                               1591                 :                :             /* first byte should always be okay... */
                               1592                 :                :             newtxt[i] = txt[i];
                               1593                 :            668 :             i++;
 4958 ishii@postgresql.org     1594                 :            668 :             while (--thislen > 0 && i < len)
 8167 tgl@sss.pgh.pa.us        1595   [ +  +  +  - ]:            808 :                 newtxt[i++] = (char) 0xFF;
                               1596                 :            140 :         }
                               1597                 :                :     }
                               1598                 :                : 
                               1599                 :                :     return yy_scan_buffer(newtxt, len + 2, state->scanner);
                               1600                 :         523817 : }
                               1601                 :                : 
                               1602                 :                : /*
                               1603                 :                :  * psqlscan_emit() --- body for ECHO macro
                               1604                 :                :  *
                               1605                 :                :  * NB: this must be used for ALL and ONLY the text copied from the flex
                               1606                 :                :  * input data.  If you pass it something that is not part of the yytext
                               1607                 :                :  * string, you are making a mistake.  Internally generated text can be
                               1608                 :                :  * appended directly to state->output_buf.
                               1609                 :                :  */
                               1610                 :                : void
                               1611                 :                : psqlscan_emit(PsqlScanState state, const char *txt, int len)
                               1612                 :        6619789 : {
                               1613                 :                :     PQExpBuffer output_buf = state->output_buf;
 3756                          1614                 :        6619789 : 
                               1615                 :                :     if (state->safe_encoding)
 8167                          1616         [ +  + ]:        6619789 :         appendBinaryPQExpBuffer(output_buf, txt, len);
                               1617                 :        6619313 :     else
                               1618                 :                :     {
                               1619                 :                :         /* Gotta do it the hard way */
                               1620                 :                :         const char *reference = state->refline;
 3755                          1621                 :            476 :         int         i;
                               1622                 :                : 
                               1623                 :                :         reference += (txt - state->curline);
 8167                          1624                 :            476 : 
                               1625                 :                :         for (i = 0; i < len; i++)
                               1626         [ +  + ]:           1277 :         {
                               1627                 :                :             char        ch = txt[i];
                               1628                 :            801 : 
                               1629                 :                :             if (ch == (char) 0xFF)
                               1630         [ +  + ]:            801 :                 ch = reference[i];
                               1631                 :            140 :             appendPQExpBufferChar(output_buf, ch);
                               1632                 :            801 :         }
                               1633                 :                :     }
                               1634                 :                : }
 6120                          1635                 :        6619789 : 
                               1636                 :                : /*
                               1637                 :                :  * psqlscan_extract_substring --- fetch value of (part of) the current token
                               1638                 :                :  *
                               1639                 :                :  * This is like psqlscan_emit(), except that the data is returned as a
                               1640                 :                :  * malloc'd string rather than being pushed directly to state->output_buf.
                               1641                 :                :  */
                               1642                 :                : char *
                               1643                 :                : psqlscan_extract_substring(PsqlScanState state, const char *txt, int len)
 5422                          1644                 :           3400 : {
                               1645                 :                :     char       *result = pg_malloc_array(char, (len + 1));
                               1646                 :           3400 : 
                               1647                 :                :     if (state->safe_encoding)
                               1648         [ +  - ]:           3400 :         memcpy(result, txt, len);
                               1649                 :           3400 :     else
                               1650                 :                :     {
                               1651                 :                :         /* Gotta do it the hard way */
                               1652                 :                :         const char *reference = state->refline;
 3755 tgl@sss.pgh.pa.us        1653                 :UBC           0 :         int         i;
                               1654                 :                : 
                               1655                 :                :         reference += (txt - state->curline);
 5422                          1656                 :              0 : 
                               1657                 :                :         for (i = 0; i < len; i++)
                               1658         [ #  # ]:              0 :         {
                               1659                 :                :             char        ch = txt[i];
                               1660                 :              0 : 
                               1661                 :                :             if (ch == (char) 0xFF)
                               1662         [ #  # ]:              0 :                 ch = reference[i];
                               1663                 :              0 :             result[i] = ch;
                               1664                 :              0 :         }
                               1665                 :                :     }
                               1666                 :                :     result[len] = '\0';
 5422 tgl@sss.pgh.pa.us        1667                 :CBC        3400 :     return result;
                               1668                 :           3400 : }
                               1669                 :                : 
                               1670                 :                : /*
                               1671                 :                :  * psqlscan_escape_variable --- process :'VARIABLE' or :"VARIABLE"
                               1672                 :                :  *
                               1673                 :                :  * If the variable name is found, escape its value using the appropriate
                               1674                 :                :  * quoting method and emit the value to output_buf.  (Since the result is
                               1675                 :                :  * surely quoted, there is never any reason to rescan it.)  If we don't
                               1676                 :                :  * find the variable or escaping fails, emit the token as-is.
                               1677                 :                :  */
                               1678                 :                : void
                               1679                 :                : psqlscan_escape_variable(PsqlScanState state, const char *txt, int len,
 3377                          1680                 :            721 :                          PsqlScanQuoteType quote)
                               1681                 :                : {
                               1682                 :                :     char       *varname;
                               1683                 :                :     char       *value;
                               1684                 :                : 
                               1685                 :                :     /* Variable lookup. */
                               1686                 :                :     varname = psqlscan_extract_substring(state, txt + 2, len - 3);
 3756                          1687                 :            721 :     if (state->callbacks->get_variable)
 3377                          1688         [ +  - ]:            721 :         value = state->callbacks->get_variable(varname, quote,
 3396                          1689                 :            721 :                                                state->cb_passthrough);
                               1690                 :                :     else
                               1691                 :                :         value = NULL;
 5422 tgl@sss.pgh.pa.us        1692                 :UBC           0 :     free(varname);
 5996 rhaas@postgresql.org     1693                 :CBC         721 : 
                               1694                 :                :     if (value)
                               1695         [ +  + ]:            721 :     {
                               1696                 :                :         /* Emit the suitably-escaped value */
                               1697                 :                :         appendPQExpBufferStr(state->output_buf, value);
 3756 tgl@sss.pgh.pa.us        1698                 :            684 :         free(value);
                               1699                 :            684 :     }
                               1700                 :                :     else
                               1701                 :                :     {
                               1702                 :                :         /* Emit original token as-is */
                               1703                 :                :         psqlscan_emit(state, txt, len);
 5996 rhaas@postgresql.org     1704                 :             37 :     }
                               1705                 :                : }
 3204 andrew@dunslane.net      1706                 :            721 : 
                               1707                 :                : void
                               1708                 :                : psqlscan_test_variable(PsqlScanState state, const char *txt, int len)
                               1709                 :             21 : {
                               1710                 :                :     char       *varname;
                               1711                 :                :     char       *value;
                               1712                 :                : 
                               1713                 :                :     varname = psqlscan_extract_substring(state, txt + 3, len - 4);
                               1714                 :             21 :     if (state->callbacks->get_variable)
                               1715         [ +  - ]:             21 :         value = state->callbacks->get_variable(varname, PQUOTE_PLAIN,
                               1716                 :             21 :                                                state->cb_passthrough);
                               1717                 :                :     else
                               1718                 :                :         value = NULL;
 3204 andrew@dunslane.net      1719                 :UBC           0 :     free(varname);
 3204 andrew@dunslane.net      1720                 :CBC          21 : 
                               1721                 :                :     if (value != NULL)
                               1722         [ +  + ]:             21 :     {
                               1723                 :                :         appendPQExpBufferStr(state->output_buf, "TRUE");
                               1724                 :              9 :         free(value);
                               1725                 :              9 :     }
                               1726                 :                :     else
                               1727                 :                :     {
                               1728                 :                :         appendPQExpBufferStr(state->output_buf, "FALSE");
                               1729                 :             12 :     }
                               1730                 :                : }
    0 s.n.thetic               1731                 :             21 : /* END: function "psqlscan_test_variable" */
        

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