109 lines
2.1 KiB
Plaintext
109 lines
2.1 KiB
Plaintext
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%{
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/*-------------------------------------------------------------------------
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*
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* bootscanner.lex--
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* a lexical scanner for the bootstrap parser
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/bootstrap/bootscanner.l,v 1.1.1.1 1996/07/09 06:21:14 scrappy Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include "bootstrap/bootstrap.h"
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#include "utils/portal.h"
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#include "access/xact.h"
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#include "parser/scansup.h"
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#include "bootstrap_tokens.h"
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/* some versions of lex define this as a macro */
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#if defined(yywrap)
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#undef yywrap
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#endif /* yywrap */
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YYSTYPE yylval;
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int yyline; /* keep track of the line number for error reporting */
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%}
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D [0-9]
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oct \\{D}{D}{D}
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Exp [Ee][-+]?{D}+
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id ([A-Za-z0-9_]|{oct}|\-)+
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sid \"([^\"])*\"
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arrayid [A-Za-z0-9_]+\[{D}*\]
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%%
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open { return(OPEN); }
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close { return(XCLOSE); }
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create { return(XCREATE); }
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OID { return(OBJ_ID); }
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bootstrap { return(XBOOTSTRAP); }
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_null_ { return(NULLVAL); }
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insert { return(INSERT_TUPLE); }
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"," { return(COMMA); }
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"=" { return(EQUALS); }
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"(" { return(LPAREN); }
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")" { return(RPAREN); }
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[\n] { yyline++; }
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[\t] ;
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" " ;
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^\#[^\n]* ; /* drop everything after "#" for comments */
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"declare" { return(XDECLARE); }
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"build" { return(XBUILD); }
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"indices" { return(INDICES); }
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"index" { return(INDEX); }
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"on" { return(ON); }
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"using" { return(USING); }
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{arrayid} {
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yylval.ival = EnterString(MapArrayTypeName((char*)yytext));
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return(ID);
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}
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{id} {
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yylval.ival = EnterString(scanstr((char*)yytext));
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return(ID);
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}
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{sid} {
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yylval.ival = EnterString(scanstr((char*)yytext));
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return(ID);
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}
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(-)?{D}+"."{D}*({Exp})? |
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(-)?{D}*"."{D}+({Exp})? |
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(-)?{D}+{Exp} {
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yylval.ival = EnterString((char*)yytext);
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return(CONST);
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}
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. {
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printf("syntax error %d : -> %s\n", yyline, yytext);
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}
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%%
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yywrap()
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{
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return 1;
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}
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yyerror(str)
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char *str;
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{
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fprintf(stderr,"\tsyntax error %d : %s",yyline, str);
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}
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