xfnw/plan9fox
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

mothra: linkify

Browse source
This commit is contained in:
cinap_lenrek 2012-02-21 11:08:05 +01:00
parent 4eaea14f76
commit 6336c8387b
1 changed files with 37 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

40
sys/src/cmd/mothra/rdhtml.c
View file

@ -259,9 +259,37 @@ char *unquot(char *dst, char *src, int len){
dst[len]=0;
return dst;
}
int entchar(int c){
return c=='#' || 'a'<=c && c<='z' || 'A'<=c && c<='Z' || '0'<=c && c<='9';
int alnumchar(int c){
return 'a'<=c && c<='z' || 'A'<=c && c<='Z' || '0'<=c && c<='9';
}
int entchar(int c){
return c=='#' || alnumchar(c);
}
/* return url if text token looks like a hyperlink */
char *linkify(char *s){
if(!cistrncmp(s, "http://", 7))
return strdup(s);
if(!cistrncmp(s, "https://", 8))
return strdup(s);
if(!cistrncmp(s, "www.", 4)){
int d, i;
d = 1;
for(i=4; s[i]; i++){
if(s[i] == '.'){
if(s[i-1] == '.')
return 0;
d++;
} else if(!alnumchar(s[i]))
break;
}
if(d >= 2)
return smprint("http://%s", s);
}
return 0;
}
/*
* remove entity references, in place.
* Potential bug:
@ -1041,7 +1069,13 @@ void plrdhtml(char *name, int fd, Www *dst){
}
break;
case TEXT:
pl_htmloutput(&g, g.nsp, g.token, 0);
if(g.state->link[0]==0 && (str = linkify(g.token))){
strncpy(g.state->link, str, sizeof(g.state->link));
pl_htmloutput(&g, g.nsp, g.token, 0);
g.state->link[0] = 0;
free(str);
} else
pl_htmloutput(&g, g.nsp, g.token, 0);
break;
case EOF:
for(;g.state!=g.stack;--g.state)