mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-11-10 23:01:59 +00:00
Updated lemon.c to version 1.43 from the SQLite source.
SVN r467 (trunk)
This commit is contained in:
Randy Heit
parent
72c93b479e
commit
b06f4423b9
3 changed files with 60 additions and 25 deletions
|
|
@ -3,7 +3,7 @@
|
|||
** Handles line specials
|
||||
**
|
||||
**---------------------------------------------------------------------------
|
||||
** Copyright 1998-2006 Randy Heit
|
||||
** Copyright 1998-2007 Randy Heit
|
||||
** All rights reserved.
|
||||
**
|
||||
** Redistribution and use in source and binary forms, with or without
|
||||
|
|
|
|||
|
|
@ -148,7 +148,7 @@ static const YYACTIONTYPE yy_action[] = {
|
|||
/* 150 */ 46, 121, 133, 2, 92, 28, 12, 29, 34, 53,
|
||||
/* 160 */ 37, 39, 51, 4, 134, 135, 102, 111, 43, 25,
|
||||
/* 170 */ 124, 6, 75, 106, 41, 26, 113, 42, 5, 108,
|
||||
/* 180 */ 35, 31, 125, 146, 105, 110, 104, 146, 123, 116,
|
||||
/* 180 */ 35, 31, 125, 219, 105, 110, 104, 219, 123, 116,
|
||||
/* 190 */ 27, 122, 114, 112,
|
||||
};
|
||||
static const YYCODETYPE yy_lookahead[] = {
|
||||
|
|
|
|||
|
|
@ -5,6 +5,10 @@
|
|||
** and Makefile of another program.
|
||||
**
|
||||
** The author of this program disclaims copyright.
|
||||
**
|
||||
** This file is based on version 1.43 of lemon.c from the SQLite
|
||||
** source tree, with modifications to make it work nicer when run
|
||||
** by Developer Studio.
|
||||
*/
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
|
|
@ -239,6 +243,7 @@ struct lemon {
|
|||
int nterminal; /* Number of terminal symbols */
|
||||
struct symbol **symbols; /* Sorted array of pointers to symbols */
|
||||
int errorcnt; /* Number of errors */
|
||||
struct symbol *wildcard; /* Token that matches anything */
|
||||
struct symbol *errsym; /* The error symbol */
|
||||
char *name; /* Name of the generated parser */
|
||||
char *arg; /* Declaration of the 3th argument to parser */
|
||||
|
|
@ -359,8 +364,6 @@ struct action *ap2;
|
|||
rc = ap1->sp->index - ap2->sp->index;
|
||||
if( rc==0 ) rc = (int)ap1->type - (int)ap2->type;
|
||||
if( rc==0 ){
|
||||
assert( ap1->type==REDUCE || ap1->type==RD_RESOLVED || ap1->type==CONFLICT);
|
||||
assert( ap2->type==REDUCE || ap2->type==RD_RESOLVED || ap2->type==CONFLICT);
|
||||
rc = ap1->x.rp->index - ap2->x.rp->index;
|
||||
}
|
||||
return rc;
|
||||
|
|
@ -1017,6 +1020,10 @@ struct symbol *errsym; /* The error symbol (if defined. NULL otherwise) */
|
|||
struct symbol *spx, *spy;
|
||||
int errcnt = 0;
|
||||
assert( apx->sp==apy->sp ); /* Otherwise there would be no conflict */
|
||||
if( apx->type==SHIFT && apy->type==SHIFT ){
|
||||
apy->type = CONFLICT;
|
||||
errcnt++;
|
||||
}
|
||||
if( apx->type==SHIFT && apy->type==REDUCE ){
|
||||
spx = apx->sp;
|
||||
spy = apy->x.rp->precsym;
|
||||
|
|
@ -1433,6 +1440,7 @@ char **argv;
|
|||
fprintf(stderr,"Exactly one filename argument is required.\n");
|
||||
exit(1);
|
||||
}
|
||||
memset(&lem, 0, sizeof(lem));
|
||||
lem.errorcnt = 0;
|
||||
|
||||
/* Initialize the machine */
|
||||
|
|
@ -1442,22 +1450,13 @@ char **argv;
|
|||
lem.argv0 = argv[0];
|
||||
lem.filename = OptArg(0);
|
||||
lem.basisflag = basisflag;
|
||||
lem.has_fallback = 0;
|
||||
lem.nconflict = 0;
|
||||
lem.name = lem.include = lem.arg = lem.tokentype = lem.start = 0;
|
||||
lem.vartype = 0;
|
||||
lem.stacksize = 0;
|
||||
lem.error = lem.overflow = lem.failure = lem.accept = lem.tokendest =
|
||||
lem.tokenprefix = lem.outname = lem.extracode = 0;
|
||||
lem.vardest = 0;
|
||||
lem.tablesize = 0;
|
||||
Symbol_new("$");
|
||||
lem.errsym = Symbol_new("error");
|
||||
|
||||
/* Parse the input file */
|
||||
Parse(&lem);
|
||||
if( lem.errorcnt ) exit(lem.errorcnt);
|
||||
if( lem.rule==0 ){
|
||||
if( lem.nrule==0 ){
|
||||
fprintf(stderr,"Empty grammar.\n");
|
||||
exit(1);
|
||||
}
|
||||
|
|
@ -1965,7 +1964,8 @@ struct pstate {
|
|||
RESYNC_AFTER_DECL_ERROR,
|
||||
WAITING_FOR_DESTRUCTOR_SYMBOL,
|
||||
WAITING_FOR_DATATYPE_SYMBOL,
|
||||
WAITING_FOR_FALLBACK_ID
|
||||
WAITING_FOR_FALLBACK_ID,
|
||||
WAITING_FOR_WILDCARD_ID
|
||||
} state; /* The state of the parser */
|
||||
struct symbol *fallback; /* The fallback token */
|
||||
struct symbol *lhs; /* Left-hand side of current rule */
|
||||
|
|
@ -2269,6 +2269,8 @@ to follow the previous rule.");
|
|||
}else if( strcmp(x,"fallback")==0 ){
|
||||
psp->fallback = 0;
|
||||
psp->state = WAITING_FOR_FALLBACK_ID;
|
||||
}else if( strcmp(x,"wildcard")==0 ){
|
||||
psp->state = WAITING_FOR_WILDCARD_ID;
|
||||
}else{
|
||||
ErrorMsg(psp->filename,psp->tokenlineno,
|
||||
"Unknown declaration keyword: \"%%%s\".",x);
|
||||
|
|
@ -2369,6 +2371,24 @@ to follow the previous rule.");
|
|||
}
|
||||
}
|
||||
break;
|
||||
case WAITING_FOR_WILDCARD_ID:
|
||||
if( x[0]=='.' ){
|
||||
psp->state = WAITING_FOR_DECL_OR_RULE;
|
||||
}else if( !isupper(x[0]) ){
|
||||
ErrorMsg(psp->filename, psp->tokenlineno,
|
||||
"%%wildcard argument \"%s\" should be a token", x);
|
||||
psp->errorcnt++;
|
||||
}else{
|
||||
struct symbol *sp = Symbol_new(x);
|
||||
if( psp->gp->wildcard==0 ){
|
||||
psp->gp->wildcard = sp;
|
||||
}else{
|
||||
ErrorMsg(psp->filename, psp->tokenlineno,
|
||||
"Extra wildcard to token: %s", x);
|
||||
psp->errorcnt++;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case RESYNC_AFTER_RULE_ERROR:
|
||||
/* if( x[0]=='.' ) psp->state = WAITING_FOR_DECL_OR_RULE;
|
||||
** break; */
|
||||
|
|
@ -3162,7 +3182,7 @@ PRIVATE char *append_str(char *zText, int n, int p1, int p2, int bNoSubst){
|
|||
if( z==0 ) return "";
|
||||
while( n-- > 0 ){
|
||||
c = *(zText++);
|
||||
if( !bNoSubst && c=='%' && zText[0]=='d' ){
|
||||
if( !bNoSubst && c=='%' && n>0 && zText[0]=='d' ){
|
||||
sprintf(zInt, "%d", p1);
|
||||
p1 = p2;
|
||||
strcpy(&z[used], zInt);
|
||||
|
|
@ -3192,7 +3212,7 @@ PRIVATE void translate_code(struct lemon *lemp, struct rule *rp){
|
|||
lhsused = 0;
|
||||
|
||||
append_str(0,0,0,0,0);
|
||||
for(cp=rp->code; *cp; cp++){
|
||||
for(cp=(rp->code?rp->code:""); *cp; cp++){
|
||||
if( isalpha(*cp) && (cp==rp->code || (!isalnum(cp[-1]) && cp[-1]!='_')) ){
|
||||
char saved;
|
||||
for(xp= &cp[1]; isalnum(*xp) || *xp=='_'; xp++);
|
||||
|
|
@ -3255,8 +3275,10 @@ PRIVATE void translate_code(struct lemon *lemp, struct rule *rp){
|
|||
}
|
||||
}
|
||||
}
|
||||
cp = append_str(0,0,0,0,0);
|
||||
rp->code = Strsafe(cp);
|
||||
if( rp->code ){
|
||||
cp = append_str(0,0,0,0,0);
|
||||
rp->code = Strsafe(cp?cp:"");
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -3499,6 +3521,10 @@ int mhflag; /* Output in makeheaders format if true */
|
|||
fprintf(out,"#define YYNOCODE %d\n",lemp->nsymbol+1); lineno++;
|
||||
fprintf(out,"#define YYACTIONTYPE %s\n",
|
||||
minimum_size_type(0, lemp->nstate+lemp->nrule+5)); lineno++;
|
||||
if( lemp->wildcard ){
|
||||
fprintf(out,"#define YYWILDCARD %d\n",
|
||||
lemp->wildcard->index); lineno++;
|
||||
}
|
||||
print_stack_union(out,lemp,&lineno,mhflag);
|
||||
if( lemp->stacksize ){
|
||||
if( atoi(lemp->stacksize)<=0 ){
|
||||
|
|
@ -3615,7 +3641,7 @@ int mhflag; /* Output in makeheaders format if true */
|
|||
n = acttab_size(pActtab);
|
||||
for(i=j=0; i<n; i++){
|
||||
int action = acttab_yyaction(pActtab, i);
|
||||
if( action<0 ) action = lemp->nsymbol + lemp->nrule + 2;
|
||||
if( action<0 ) action = lemp->nstate + lemp->nrule + 2;
|
||||
if( j==0 ) fprintf(out," /* %5d */ ", i);
|
||||
fprintf(out, " %4d,", action);
|
||||
if( j==9 || i==n-1 ){
|
||||
|
|
@ -3820,7 +3846,7 @@ int mhflag; /* Output in makeheaders format if true */
|
|||
|
||||
/* Generate code which executes during each REDUCE action */
|
||||
for(rp=lemp->rule; rp; rp=rp->next){
|
||||
if( rp->code ) translate_code(lemp, rp);
|
||||
translate_code(lemp, rp);
|
||||
}
|
||||
for(rp=lemp->rule; rp; rp=rp->next){
|
||||
struct rule *rp2;
|
||||
|
|
@ -3895,7 +3921,8 @@ struct lemon *lemp;
|
|||
** of defaults.
|
||||
**
|
||||
** In this version, we take the most frequent REDUCE action and make
|
||||
** it the default.
|
||||
** it the default. Except, there is no default if the wildcard token
|
||||
** is a possible look-ahead.
|
||||
*/
|
||||
void CompressTables(lemp)
|
||||
struct lemon *lemp;
|
||||
|
|
@ -3905,13 +3932,18 @@ struct lemon *lemp;
|
|||
struct rule *rp, *rp2, *rbest;
|
||||
int nbest, n;
|
||||
int i;
|
||||
int usesWildcard;
|
||||
|
||||
for(i=0; i<lemp->nstate; i++){
|
||||
stp = lemp->sorted[i];
|
||||
nbest = 0;
|
||||
rbest = 0;
|
||||
usesWildcard = 0;
|
||||
|
||||
for(ap=stp->ap; ap; ap=ap->next){
|
||||
if( ap->type==SHIFT && ap->sp==lemp->wildcard ){
|
||||
usesWildcard = 1;
|
||||
}
|
||||
if( ap->type!=REDUCE ) continue;
|
||||
rp = ap->x.rp;
|
||||
if( rp==rbest ) continue;
|
||||
|
|
@ -3929,8 +3961,10 @@ struct lemon *lemp;
|
|||
}
|
||||
|
||||
/* Do not make a default if the number of rules to default
|
||||
** is not at least 1 */
|
||||
if( nbest<1 ) continue;
|
||||
** is not at least 1 or if the wildcard token is a possbile
|
||||
** lookahed.
|
||||
*/
|
||||
if( nbest<1 || usesWildcard ) continue;
|
||||
|
||||
|
||||
/* Combine matching REDUCE actions into a single default */
|
||||
|
|
@ -4095,6 +4129,7 @@ char *y;
|
|||
{
|
||||
char *z;
|
||||
|
||||
if( y==0 ) return 0;
|
||||
z = Strsafe_find(y);
|
||||
if( z==0 && (z=malloc( strlen(y)+1 ))!=0 ){
|
||||
strcpy(z,y);
|
||||
|
|
|
|||
Loading…
Reference in a new issue