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#include "rc.h"
/* removes glob marks in place */
void
deglob(char *s)
{
char *t = s;
do{
if(*t==GLOB)
t++;
*s++=*t;
}while(*t++);
}
int
match(char *s, char *p, int stop)
{
rune rs, rp, lo, hi;
int neg, hit;
utf8·decode(p, &rp), utf8·decode(s, &rs);
for(; *p && *p != stop; s+=utf8·decode(s,&rs),p+=utf8·decode(p,&rp)){
/* fast path: normal character */
if(*p != GLOB){
if(rp != rs)
return 0;
continue;
}
/* unglob */
switch(*++p){
case GLOB:
if(*s != GLOB)
return 0;
break;
case '*':
for(;;){
p += utf8·decode(p, &rp);
if(match(s, p, stop))
return 1;
s += utf8·decode(s, &rs);
}
return 0;
case '?':
if(*s == 0)
return 0;
break;
case '[':
if(*s==0)
return 0;
if((neg=*++p=='~'))
p++;
hit = 0;
while(*p != ']'){
if(*p==0)
return 0; /* syntax error */
p += utf8·decode(p, &lo);
if(*p != '-')
hi = lo;
else{
if(*++p == 0)
return 0; /* syntax error */
p += utf8·decode(p, &hi);
if(hi < lo)
rp=lo, lo=hi, hi=rp;
}
if(lo <= rs && rs <= hi)
hit = 1;
}
if(neg)
hit=!hit;
if(!hit)
return 0;
break;
}
}
return *s == 0;
}
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