LCOV - differential code coverage report
Current view: top level - src/backend/replication - syncrep_scanner.l (source / functions) Coverage Total Hit UNC LBC UIC UBC GBC GIC GNC CBC EUB ECB DUB DCB
Current: Differential Code Coverage HEAD vs 15 Lines: 54.4 % 57 31 2 6 11 7 5 15 3 8 10 16 4 1
Current Date: 2023-04-08 17:13:01 Functions: 50.0 % 4 2 2 2 2 2
Baseline: 15 Line coverage date bins:
Baseline Date: 2023-04-08 15:09:40 (180,240] days: 60.0 % 5 3 2 3
Legend: Lines: hit not hit (240..) days: 53.8 % 52 28 6 11 7 5 15 8 10 10
Function coverage date bins:
(240..) days: 28.6 % 7 2 2 2 2 1

 Age         Owner                  TLA  Line data    Source code
                                  1                 : %top{
                                  2                 : /*-------------------------------------------------------------------------
                                  3                 :  *
                                  4                 :  * syncrep_scanner.l
                                  5                 :  *    a lexical scanner for synchronous_standby_names
                                  6                 :  *
                                  7                 :  * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
                                  8                 :  * Portions Copyright (c) 1994, Regents of the University of California
                                  9                 :  *
                                 10                 :  *
                                 11                 :  * IDENTIFICATION
                                 12                 :  *    src/backend/replication/syncrep_scanner.l
                                 13                 :  *
                                 14                 :  *-------------------------------------------------------------------------
                                 15                 :  */
                                 16                 : #include "postgres.h"
                                 17                 : 
                                 18                 : #include "lib/stringinfo.h"
                                 19                 : #include "nodes/pg_list.h"
                                 20                 : 
                                 21                 : /*
                                 22                 :  * NB: include syncrep_gram.h only AFTER including syncrep.h, because syncrep.h
                                 23                 :  * includes node definitions needed for YYSTYPE.
                                 24                 :  */
                                 25                 : #include "replication/syncrep.h"
                                 26                 : #include "syncrep_gram.h"
                                 27                 : }
                                 28                 : 
                                 29                 : %{
                                 30                 : /* Avoid exit() on fatal scanner errors (a bit ugly -- see yy_fatal_error) */
                                 31                 : #undef fprintf
                                 32                 : #define fprintf(file, fmt, msg)  fprintf_to_ereport(fmt, msg)
                                 33                 : 
                                 34                 : static void
 2538 tgl                        35 UIC           0 : fprintf_to_ereport(const char *fmt, const char *msg)
                                 36                 : {
                                 37               0 :     ereport(ERROR, (errmsg_internal("%s", msg)));
                                 38                 : }
                                 39                 : 
                                 40                 : /* Handles to the buffer that the lexer uses internally */
                                 41                 : static YY_BUFFER_STATE scanbufhandle;
                                 42                 : 
                                 43                 : static StringInfoData xdbuf;
                                 44                 : 
 2068 peter_e                    45 EUB             : /* LCOV_EXCL_START */
                                 46                 : 
 2559 fujii                      47                 : %}
                                 48                 : 
                                 49                 : %option 8bit
                                 50                 : %option never-interactive
                                 51                 : %option nodefault
                                 52                 : %option noinput
                                 53                 : %option nounput
                                 54                 : %option noyywrap
                                 55                 : %option warn
                                 56                 : %option prefix="syncrep_yy"
                                 57                 : 
                                 58                 : /*
                                 59                 :  * <xd> delimited identifiers (double-quoted identifiers)
                                 60                 :  */
                                 61                 : %x xd
                                 62                 : 
                                 63                 : space           [ \t\n\r\f\v]
                                 64                 : 
                                 65                 : digit           [0-9]
                                 66                 : ident_start     [A-Za-z\200-\377_]
                                 67                 : ident_cont      [A-Za-z\200-\377_0-9\$]
                                 68                 : identifier      {ident_start}{ident_cont}*
                                 69                 : 
                                 70                 : dquote          \"
                                 71                 : xdstart         {dquote}
                                 72                 : xdstop          {dquote}
                                 73                 : xddouble        {dquote}{dquote}
                                 74                 : xdinside        [^"]+
                                 75                 : 
                                 76                 : %%
                                 77                 : {space}+    { /* ignore */ }
 2538 tgl                        78 GIC          10 : 
                                 79                 :     /* brute-force case insensitivity is safer than relying on flex -i */
 2151                            80               4 : 
                                 81               4 : [Aa][Nn][Yy]            { return ANY; }
                                 82               2 : [Ff][Ii][Rr][Ss][Tt]    { return FIRST; }
 2302 fujii                      83               2 : 
 2559 fujii                      84 UIC           0 : {xdstart}   {
                                 85               0 :                 initStringInfo(&xdbuf);
                                 86               0 :                 BEGIN(xd);
                                 87                 :         }
 2559 fujii                      88 LBC           0 : <xd>{xddouble} {
 2538 tgl                        89 UIC           0 :                 appendStringInfoChar(&xdbuf, '"');
 2559 fujii                      90 ECB             :         }
 2559 fujii                      91 LBC           0 : <xd>{xdinside} {
                                 92               0 :                 appendStringInfoString(&xdbuf, yytext);
 2559 fujii                      93 ECB             :         }
 2559 fujii                      94 UBC           0 : <xd>{xdstop} {
  217 john.naylor                95 UNC           0 :                 syncrep_yylval.str = xdbuf.data;
 2538 tgl                        96 UBC           0 :                 xdbuf.data = NULL;
 2559 fujii                      97 UIC           0 :                 BEGIN(INITIAL);
 2559 fujii                      98 UBC           0 :                 return NAME;
 2559 fujii                      99 EUB             :         }
                                100                 : <xd><<EOF>> {
  217 john.naylor               101 UNC           0 :                 syncrep_yyerror("unterminated quoted identifier");
 2538 tgl                       102 UBC           0 :                 return JUNK;
                                103                 :         }
 2538 tgl                       104 EUB             : 
 2538 tgl                       105 GBC          73 : {identifier} {
  217 john.naylor               106 GNC          73 :                 syncrep_yylval.str = pstrdup(yytext);
 2538 tgl                       107 GBC          73 :                 return NAME;
 2559 fujii                     108 EUB             :         }
                                109                 : 
 2538 tgl                       110 GIC          18 : {digit}+    {
  217 john.naylor               111 GNC          18 :                 syncrep_yylval.str = pstrdup(yytext);
 2538 tgl                       112 GBC          18 :                 return NUM;
                                113                 :         }
                                114                 : 
 2538 tgl                       115 CBC          24 : "*"       {
  217 john.naylor               116 GNC          24 :                 syncrep_yylval.str = "*";
 2559 fujii                     117 CBC          24 :                 return NAME;
                                118                 :         }
                                119                 : 
 2538 tgl                       120              30 : ","           { return ','; }
                                121              18 : "("           { return '('; }
                                122              18 : ")"           { return ')'; }
 2538 tgl                       123 GIC          18 : 
 2538 tgl                       124 UIC           0 : .           { return JUNK; }
 2559 fujii                     125 LBC           0 : %%
                                126               0 : 
 2068 peter_e                   127 ECB             : /* LCOV_EXCL_STOP */
                                128                 : 
                                129                 : /* Needs to be here for access to yytext */
 2559 fujii                     130                 : void
 2538 tgl                       131 LBC           0 : syncrep_yyerror(const char *message)
 2559 fujii                     132 ECB             : {
 2538 tgl                       133                 :     /* report only the first error in a parse operation */
 2538 tgl                       134 UBC           0 :     if (syncrep_parse_error_msg)
                                135               0 :         return;
                                136               0 :     if (yytext[0])
 2538 tgl                       137 UIC           0 :         syncrep_parse_error_msg = psprintf("%s at or near \"%s\"",
                                138                 :                                            message, yytext);
                                139                 :     else
                                140               0 :         syncrep_parse_error_msg = psprintf("%s at end of input",
 2538 tgl                       141 EUB             :                                            message);
                                142                 : }
                                143                 : 
 2559 fujii                     144                 : void
 2559 fujii                     145 GBC          67 : syncrep_scanner_init(const char *str)
 2559 fujii                     146 EUB             : {
 2559 fujii                     147 GBC          67 :     Size        slen = strlen(str);
                                148                 :     char       *scanbuf;
                                149                 : 
 2559 fujii                     150 EUB             :     /*
                                151                 :      * Might be left over after ereport()
                                152                 :      */
 2559 fujii                     153 GIC          67 :     if (YY_CURRENT_BUFFER)
 2559 fujii                     154 UIC           0 :         yy_delete_buffer(YY_CURRENT_BUFFER);
 2559 fujii                     155 ECB             : 
                                156                 :     /*
                                157                 :      * Make a scan buffer with special termination needed by flex.
                                158                 :      */
 2559 fujii                     159 GIC          67 :     scanbuf = (char *) palloc(slen + 2);
                                160              67 :     memcpy(scanbuf, str, slen);
                                161              67 :     scanbuf[slen] = scanbuf[slen + 1] = YY_END_OF_BUFFER_CHAR;
                                162              67 :     scanbufhandle = yy_scan_buffer(scanbuf, slen + 2);
 2538 tgl                       163 ECB             : 
 2538 tgl                       164 EUB             :     /* Make sure we start in proper state */
 2538 tgl                       165 GIC          67 :     BEGIN(INITIAL);
 2559 fujii                     166              67 : }
                                167                 : 
                                168                 : void
 2559 fujii                     169 CBC          67 : syncrep_scanner_finish(void)
 2559 fujii                     170 ECB             : {
 2559 fujii                     171 CBC          67 :     yy_delete_buffer(scanbufhandle);
                                172              67 :     scanbufhandle = NULL;
 2559 fujii                     173 GIC          67 : }
        

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