diff options
Diffstat (limited to 'fitz/base_cleanname.c')
-rw-r--r-- | fitz/base_cleanname.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/fitz/base_cleanname.c b/fitz/base_cleanname.c deleted file mode 100644 index 54764630..00000000 --- a/fitz/base_cleanname.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * In place, rewrite name to compress multiple /, eliminate ., and process .. - */ - -#define SEP(x) ((x)=='/' || (x) == 0) - -char * -cleanname(char *name) -{ - char *p, *q, *dotdot; - int rooted; - - rooted = name[0] == '/'; - - /* - * invariants: - * p points at beginning of path element we're considering. - * q points just past the last path element we wrote (no slash). - * dotdot points just past the point where .. cannot backtrack - * any further (no slash). - */ - p = q = dotdot = name+rooted; - while(*p) { - if(p[0] == '/') /* null element */ - p++; - else if(p[0] == '.' && SEP(p[1])) - p += 1; /* don't count the separator in case it is nul */ - else if(p[0] == '.' && p[1] == '.' && SEP(p[2])) { - p += 2; - if(q > dotdot) { /* can backtrack */ - while(--q > dotdot && *q != '/') - ; - } else if(!rooted) { /* /.. is / but ./../ is .. */ - if(q != name) - *q++ = '/'; - *q++ = '.'; - *q++ = '.'; - dotdot = q; - } - } else { /* real path element */ - if(q != name+rooted) - *q++ = '/'; - while((*q = *p) != '/' && *q != 0) - p++, q++; - } - } - if(q == name) /* empty string is really ``.'' */ - *q++ = '.'; - *q = '\0'; - return name; -} - |