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144 lines
3.0 KiB
144 lines
3.0 KiB
%{
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/*-------------------------------------------------------------------------
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*
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* bootscanner.l
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* a lexical scanner for the bootstrap parser
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*
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* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
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* Portions 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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* src/backend/bootstrap/bootscanner.l
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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#include "access/attnum.h"
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#include "access/htup.h"
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#include "access/itup.h"
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#include "access/tupdesc.h"
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#include "bootstrap/bootstrap.h"
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#include "catalog/pg_am.h"
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#include "catalog/pg_attribute.h"
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#include "catalog/pg_class.h"
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#include "nodes/nodes.h"
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#include "nodes/parsenodes.h"
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#include "nodes/pg_list.h"
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#include "nodes/primnodes.h"
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#include "parser/scansup.h"
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#include "rewrite/prs2lock.h"
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#include "storage/block.h"
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#include "storage/fd.h"
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#include "storage/itemptr.h"
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#include "storage/off.h"
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#include "utils/rel.h"
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/* Not needed now that this file is compiled as part of bootparse. */
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/* #include "bootparse.h" */
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/* LCOV_EXCL_START */
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/* Avoid exit() on fatal scanner errors (a bit ugly -- see yy_fatal_error) */
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#undef fprintf
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#define fprintf(file, fmt, msg) fprintf_to_ereport(fmt, msg)
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static void
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fprintf_to_ereport(const char *fmt, const char *msg)
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{
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ereport(ERROR, (errmsg_internal("%s", msg)));
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}
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static int yyline = 1; /* line number for error reporting */
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%}
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%option 8bit
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%option never-interactive
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%option nodefault
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%option noinput
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%option nounput
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%option noyywrap
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%option warn
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%option prefix="boot_yy"
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D [0-9]
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oct \\{D}{D}{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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"shared_relation" { return XSHARED_RELATION; }
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"without_oids" { return XWITHOUT_OIDS; }
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"rowtype_oid" { return XROWTYPE_OID; }
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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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"unique" { return UNIQUE; }
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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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"toast" { return XTOAST; }
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"FORCE" { return XFORCE; }
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"NOT" { return XNOT; }
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"NULL" { return XNULL; }
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{arrayid} {
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yylval.str = MapArrayTypeName(yytext);
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return ID;
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}
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{id} {
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yylval.str = scanstr(yytext);
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return ID;
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}
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{sid} {
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yytext[strlen(yytext)-1] = '\0'; /* strip off quotes */
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yylval.str = scanstr(yytext+1);
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yytext[strlen(yytext)] = '"'; /* restore quotes */
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return ID;
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}
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. {
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elog(ERROR, "syntax error at line %d: unexpected character \"%s\"", yyline, yytext);
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}
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%%
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/* LCOV_EXCL_STOP */
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void
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yyerror(const char *message)
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{
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elog(ERROR, "%s at line %d", message, yyline);
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}
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