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Overview
| Comment: | Minor tweaks to Lemon. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
986677224a8da5e79fbbd90673f1b595 |
| User & Date: | drh 2015-09-07 23:40:42.492 |
Context
|
2015-09-08
| ||
| 17:31 | Fix the help message that sqlite3_analyzer.exe generates for invalid arguments. (check-in: 33a14e7be1 user: drh tags: trunk) | |
|
2015-09-07
| ||
| 23:40 | Minor tweaks to Lemon. (check-in: 986677224a user: drh tags: trunk) | |
| 20:11 | Enhance the Lemon parser generator to add SHIFTREDUCE states that reduce the sizes of some of the parser tables. (check-in: 99b992fa84 user: drh tags: trunk) | |
Changes
Changes to tool/lemon.c.
| ︙ | ︙ | |||
3749 3750 3751 3752 3753 3754 3755 |
*/
static int axset_compare(const void *a, const void *b){
struct axset *p1 = (struct axset*)a;
struct axset *p2 = (struct axset*)b;
int c;
c = p2->nAction - p1->nAction;
if( c==0 ){
| | | 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 |
*/
static int axset_compare(const void *a, const void *b){
struct axset *p1 = (struct axset*)a;
struct axset *p2 = (struct axset*)b;
int c;
c = p2->nAction - p1->nAction;
if( c==0 ){
c = p1->iOrder - p2->iOrder;
}
assert( c!=0 || p1==p2 );
return c;
}
/*
** Write text on "out" that describes the rule "rp".
|
| ︙ | ︙ | |||
3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 |
if( action<0 ) continue;
acttab_action(pActtab, ap->sp->index, action);
}
stp->iNtOfst = acttab_insert(pActtab);
if( stp->iNtOfst<mnNtOfst ) mnNtOfst = stp->iNtOfst;
if( stp->iNtOfst>mxNtOfst ) mxNtOfst = stp->iNtOfst;
}
}
free(ax);
/* Finish rendering the constants now that the action table has
** been computed */
fprintf(out,"#define YYNSTATE %d\n",lemp->nxstate); lineno++;
fprintf(out,"#define YYNRULE %d\n",lemp->nrule); lineno++;
| > > > > > > > > > > | | 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959 3960 |
if( action<0 ) continue;
acttab_action(pActtab, ap->sp->index, action);
}
stp->iNtOfst = acttab_insert(pActtab);
if( stp->iNtOfst<mnNtOfst ) mnNtOfst = stp->iNtOfst;
if( stp->iNtOfst>mxNtOfst ) mxNtOfst = stp->iNtOfst;
}
#if 0 /* Uncomment for a trace of how the yy_action[] table fills out */
{ int jj, nn;
for(jj=nn=0; jj<pActtab->nAction; jj++){
if( pActtab->aAction[jj].action<0 ) nn++;
}
printf("%4d: State %3d %s n: %2d size: %5d freespace: %d\n",
i, stp->statenum, ax[i].isTkn ? "Token" : "Var ",
ax[i].nAction, pActtab->nAction, nn);
}
#endif
}
free(ax);
/* Finish rendering the constants now that the action table has
** been computed */
fprintf(out,"#define YYNSTATE %d\n",lemp->nxstate); lineno++;
fprintf(out,"#define YYNRULE %d\n",lemp->nrule); lineno++;
fprintf(out,"#define YY_MAX_SHIFT %d\n",lemp->nxstate-1); lineno++;
fprintf(out,"#define YY_MIN_SHIFTREDUCE %d\n",lemp->nstate); lineno++;
i = lemp->nstate + lemp->nrule;
fprintf(out,"#define YY_MAX_SHIFTREDUCE %d\n", i-1); lineno++;
fprintf(out,"#define YY_MIN_REDUCE %d\n", i); lineno++;
i = lemp->nstate + lemp->nrule*2;
fprintf(out,"#define YY_MAX_REDUCE %d\n", i-1); lineno++;
fprintf(out,"#define YY_ERROR_ACTION %d\n", i); lineno++;
|
| ︙ | ︙ |