ref: f54501c2592bd7cee283a243391d07f2dd131373
dir: /9legacy/abaco_fix_relative_urls.diff/
--- sys/src/cmd/abaco/urls.c Wed Jul 29 17:23:32 2009
+++ /sys/src/cmd/abaco/urls.c Fri Jul 16 16:19:54 2021
@@ -127,55 +127,74 @@
void
urlcanon(Rune *name){
- Rune *s, *t;
+ Rune *s, *e, *tail, tailr;
Rune **comp, **p, **q;
- int rooted;
+ int n;
+
+ name = runestrstr(name, L"://");
+ if(name == nil)
+ return;
+ name = runestrchr(name+3, '/');
+ if(name == nil)
+ return;
+ if(*name == L'/')
+ name++;
+
+ n = 0;
+ for(e = name; *e != 0; e++)
+ if(*e == L'/')
+ n++;
+ comp = emalloc((n+2)*sizeof *comp);
- name = runestrchr(name, L'/')+2;
- rooted=name[0]==L'/';
/*
* Break the name into a list of components
*/
- comp=emalloc(runestrlen(name)*sizeof(char *));
p=comp;
*p++=name;
- for(s=name;;s++){
- if(*s==L'/'){
- *p++=s+1;
- *s='\0';
- }
- else if(*s=='\0')
+ tail = nil;
+ tailr = L'☺'; /* silence compiler */
+ for(s = name; *s != 0; s++){
+ if(*s == '?' || *s == '#'){
+ tail = s+1;
+ tailr = *s;
+ *s = 0;
break;
+ }
+ else if(*s == L'/'){
+ *p++ = s+1;
+ *s = 0;
+ }
}
- *p=0;
+
/*
* go through the component list, deleting components that are empty (except
- * the last component) or ., and any .. and its non-.. predecessor.
+ * the last component) or ., and any .. and its predecessor.
*/
- p=q=comp;
- while(*p){
- if(runestrcmp(*p, L"")==0 && p[1]!=0
- || runestrcmp(*p, L".")==0)
- p++;
- else if(runestrcmp(*p, L"..")==0 && q!=comp && runestrcmp(q[-1], L"..")!=0){
- --q;
- p++;
- }
+ for(p = q = comp; *p != nil; p++){
+ if(runestrcmp(*p, L"") == 0 && p[1] != nil
+ || runestrcmp(*p, L".") == 0)
+ continue;
+ else if(q>comp && runestrcmp(*p, L"..") == 0 && runestrcmp(q[-1], L"..") != 0)
+ q--;
else
- *q++=*p++;
+ *q++=*p;
}
- *q=0;
+ *q = nil;
+
/*
* rebuild the path name
*/
s=name;
- if(rooted) *s++='/';
- for(p=comp;*p;p++){
- t=*p;
- while(*t) *s++=*t++;
- if(p[1]!=0) *s++='/';
+ for(p = comp; p<q; p++){
+ n = runestrlen(*p);
+ memmove(s, *p, sizeof(Rune)*n);
+ s += n;
+ if(p[1] != nil)
+ *s++ = '/';
}
- *s='\0';
+ *s = 0;
+ if(tail)
+ runeseprint(s, e+1, "%C%S", tailr, tail);
free(comp);
}