granicus.if.org Git - postgresql/blob - src/backend/bootstrap/bootscanner.l

   1 %{
   2 /*-------------------------------------------------------------------------
   3  *
   4  * bootscanner.lex--
   5  *    a lexical scanner for the bootstrap parser
   6  *
   7  * Copyright (c) 1994, Regents of the University of California
   8  *
   9  *
  10  * IDENTIFICATION
  11  *    $Header: /cvsroot/pgsql/src/backend/bootstrap/bootscanner.l,v 1.4 1996/10/23 07:39:39 scrappy Exp $
  12  *
  13  *-------------------------------------------------------------------------
  14  */
  15 #include <time.h>
  16
  17 #include "postgres.h"
  18
  19 #include "storage/block.h"
  20 #include "storage/off.h"
  21 #include "storage/itemptr.h"
  22 #include "catalog/pg_attribute.h"
  23 #include "access/attnum.h"
  24 #include "nodes/pg_list.h"
  25 #include "access/tupdesc.h"
  26 #include "access/itup.h"
  27 #include "access/funcindex.h"
  28 #include "storage/fd.h"
  29 #include "catalog/pg_am.h"
  30 #include "catalog/pg_class.h"
  31 #include "nodes/nodes.h"
  32 #include "rewrite/prs2lock.h"
  33 #include "access/skey.h"
  34 #include "access/strat.h"
  35 #include "utils/rel.h"
  36 #include "bootstrap/bootstrap.h"
  37
  38 #include "nodes/primnodes.h"
  39 #include "utils/nabstime.h"
  40 #include "access/htup.h"
  41 #include "utils/tqual.h"
  42 #include "nodes/parsenodes.h"
  43
  44 #include "parser/scansup.h"
  45
  46 #include "bootstrap_tokens.h"
  47
  48 #define         YY_NO_UNPUT
  49
  50 /* some versions of lex define this as a macro */
  51 #if defined(yywrap)
  52 #undef yywrap
  53 #endif /* yywrap */
  54
  55 YYSTYPE yylval;
  56 int     yyline;  /* keep track of the line number for error reporting */
  57
  58 %}
  59
  60 D       [0-9]
  61 oct     \\{D}{D}{D}
  62 Exp     [Ee][-+]?{D}+
  63 id      ([A-Za-z0-9_]|{oct}|\-)+
  64 sid     \"([^\"])*\"
  65 arrayid [A-Za-z0-9_]+\[{D}*\]
  66
  67 %%
  68
  69 open            { return(OPEN); }
  70
  71 close           { return(XCLOSE); }
  72
  73 create          { return(XCREATE); }
  74
  75 OID             { return(OBJ_ID); }
  76 bootstrap       { return(XBOOTSTRAP); }
  77 _null_          { return(NULLVAL); }
  78
  79 insert          { return(INSERT_TUPLE); }
  80
  81 ","             { return(COMMA); }
  82 "="             { return(EQUALS); }
  83 "("             { return(LPAREN); }
  84 ")"             { return(RPAREN); }
  85
  86 [\n]            { yyline++; }
  87 [\t]            ;
  88 " "             ;
  89
  90 ^\#[^\n]* ; /* drop everything after "#" for comments */
  91
  92
  93 "declare"       { return(XDECLARE); }
  94 "build"         { return(XBUILD); }
  95 "indices"       { return(INDICES); }
  96 "index"         { return(INDEX); }
  97 "on"            { return(ON); }
  98 "using"         { return(USING); }
  99 {arrayid}       {
 100                     yylval.ival = EnterString(MapArrayTypeName((char*)yytext));
 101                     return(ID);
 102                 }
 103 {id}            {
 104                     yylval.ival = EnterString(scanstr((char*)yytext));
 105                     return(ID);
 106                 }
 107 {sid}           {
 108                     yylval.ival = EnterString(scanstr((char*)yytext));
 109                     return(ID);
 110                 }
 111
 112 (-)?{D}+"."{D}*({Exp})? |
 113 (-)?{D}*"."{D}+({Exp})? |
 114 (-)?{D}+{Exp}           {
 115                             yylval.ival = EnterString((char*)yytext);
 116                             return(CONST);
 117                         }
 118
 119 .               {
 120                     printf("syntax error %d : -> %s\n", yyline, yytext);
 121                 }
 122
 123
 124
 125 %%
 126
 127 int
 128 yywrap(void)
 129 {
 130     return 1;
 131 }
 132
 133 void
 134 yyerror(const char *str)
 135 {
 136     fprintf(stderr,"\tsyntax error %d : %s",yyline, str);
 137 }