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%{
/*-------------------------------------------------------------------------
*
* bootscanner.l
* a lexical scanner for the bootstrap parser
*
* Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* src/backend/bootstrap/bootscanner.l
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/attnum.h"
#include "access/htup.h"
#include "access/itup.h"
#include "access/skey.h"
#include "access/tupdesc.h"
#include "bootstrap/bootstrap.h"
#include "catalog/pg_am.h"
#include "catalog/pg_attribute.h"
#include "catalog/pg_class.h"
#include "nodes/nodes.h"
#include "nodes/parsenodes.h"
#include "nodes/pg_list.h"
#include "nodes/primnodes.h"
#include "parser/scansup.h"
#include "rewrite/prs2lock.h"
#include "storage/block.h"
#include "storage/fd.h"
#include "storage/itemptr.h"
#include "storage/off.h"
#include "utils/rel.h"
/* Not needed now that this file is compiled as part of bootparse. */
/* #include "bootparse.h" */
/* Avoid exit() on fatal scanner errors (a bit ugly -- see yy_fatal_error) */
#undef fprintf
#define fprintf(file, fmt, msg) fprintf_to_ereport(fmt, msg)
static void
fprintf_to_ereport(const char *fmt, const char *msg)
{
ereport(ERROR, (errmsg_internal("%s", msg)));
}
static int yyline = 1; /* line number for error reporting */
%}
%option 8bit
%option never-interactive
%option nodefault
%option noinput
%option nounput
%option noyywrap
%option warn
%option prefix="boot_yy"
D [0-9]
oct \\{D}{D}{D}
Exp [Ee][-+]?{D}+
id ([A-Za-z0-9_]|{oct}|\-)+
sid \"([^\"])*\"
arrayid [A-Za-z0-9_]+\[{D}*\]
%%
open { return(OPEN); }
close { return(XCLOSE); }
create { return(XCREATE); }
OID { return(OBJ_ID); }
bootstrap { return(XBOOTSTRAP); }
"shared_relation" { return(XSHARED_RELATION); }
"without_oids" { return(XWITHOUT_OIDS); }
"rowtype_oid" { return(XROWTYPE_OID); }
_null_ { return(NULLVAL); }
insert { return(INSERT_TUPLE); }
"," { return(COMMA); }
"=" { return(EQUALS); }
"(" { return(LPAREN); }
")" { return(RPAREN); }
[\n] { yyline++; }
[\t] ;
" " ;
^\#[^\n]* ; /* drop everything after "#" for comments */
"declare" { return(XDECLARE); }
"build" { return(XBUILD); }
"indices" { return(INDICES); }
"unique" { return(UNIQUE); }
"index" { return(INDEX); }
"on" { return(ON); }
"using" { return(USING); }
"toast" { return(XTOAST); }
{arrayid} {
yylval.str = pstrdup(MapArrayTypeName(yytext));
return(ID);
}
{id} {
yylval.str = scanstr(yytext);
return(ID);
}
{sid} {
yytext[strlen(yytext)-1] = '\0'; /* strip off quotes */
yylval.str = scanstr(yytext+1);
yytext[strlen(yytext)] = '"'; /* restore quotes */
return(ID);
}
(-)?{D}+"."{D}*({Exp})? |
(-)?{D}*"."{D}+({Exp})? |
(-)?{D}+{Exp} {
yylval.str = pstrdup(yytext);
return(CONST_P);
}
. {
elog(ERROR, "syntax error at line %d: unexpected character \"%s\"", yyline, yytext);
}
%%
void
yyerror(const char *message)
{
elog(ERROR, "%s at line %d", message, yyline);
}
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