return (unsigned char)*prefix - (unsigned char)*str;
}
+int suffixcmp(const char *str, const char *suffix)
+{
+ int len = strlen(str), suflen = strlen(suffix);
+ if (len < suflen)
+ return -1;
+ else
+ return strcmp(str + len - suflen, suffix);
+}
+
/*
* Used as the default ->buf value, so that people can always assume
* buf is non NULL and ->buf is NUL terminated even for a freshly
void strbuf_grow(struct strbuf *sb, size_t extra)
{
- if (sb->len + extra + 1 <= sb->len)
+ int new_buf = !sb->alloc;
+ if (unsigned_add_overflows(extra, 1) ||
+ unsigned_add_overflows(sb->len, extra + 1))
die("you want to use way too much memory");
- if (!sb->alloc)
+ if (new_buf)
sb->buf = NULL;
ALLOC_GROW(sb->buf, sb->len + extra + 1, sb->alloc);
+ if (new_buf)
+ sb->buf[0] = '\0';
}
void strbuf_trim(struct strbuf *sb)
sb->buf[sb->len] = '\0';
}
-void strbuf_tolower(struct strbuf *sb)
-{
- int i;
- for (i = 0; i < sb->len; i++)
- sb->buf[i] = tolower(sb->buf[i]);
-}
-
-struct strbuf **strbuf_split(const struct strbuf *sb, int delim)
+struct strbuf **strbuf_split_buf(const char *str, size_t slen, int delim, int max)
{
int alloc = 2, pos = 0;
- char *n, *p;
+ const char *n, *p;
struct strbuf **ret;
struct strbuf *t;
ret = xcalloc(alloc, sizeof(struct strbuf *));
- p = n = sb->buf;
- while (n < sb->buf + sb->len) {
+ p = n = str;
+ while (n < str + slen) {
int len;
- n = memchr(n, delim, sb->len - (n - sb->buf));
+ if (max <= 0 || pos + 1 < max)
+ n = memchr(n, delim, slen - (n - str));
+ else
+ n = NULL;
if (pos + 1 >= alloc) {
alloc = alloc * 2;
ret = xrealloc(ret, sizeof(struct strbuf *) * alloc);
}
if (!n)
- n = sb->buf + sb->len - 1;
+ n = str + slen - 1;
len = n - p + 1;
t = xmalloc(sizeof(struct strbuf));
strbuf_init(t, len);
void strbuf_splice(struct strbuf *sb, size_t pos, size_t len,
const void *data, size_t dlen)
{
- if (pos + len < pos)
+ if (unsigned_add_overflows(pos, len))
die("you want to use way too much memory");
if (pos > sb->len)
die("`pos' is too far after the end of the buffer");
void strbuf_addf(struct strbuf *sb, const char *fmt, ...)
{
- int len;
va_list ap;
+ va_start(ap, fmt);
+ strbuf_vaddf(sb, fmt, ap);
+ va_end(ap);
+}
+
+void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap)
+{
+ int len;
+ va_list cp;
if (!strbuf_avail(sb))
strbuf_grow(sb, 64);
- va_start(ap, fmt);
- len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
- va_end(ap);
+ va_copy(cp, ap);
+ len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, cp);
+ va_end(cp);
if (len < 0)
- die("your vsnprintf is broken");
+ die("BUG: your vsnprintf is broken (returned %d)", len);
if (len > strbuf_avail(sb)) {
strbuf_grow(sb, len);
- va_start(ap, fmt);
len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
- va_end(ap);
- if (len > strbuf_avail(sb)) {
- die("this should not happen, your snprintf is broken");
- }
+ if (len > strbuf_avail(sb))
+ die("BUG: your vsnprintf is broken (insatiable)");
}
strbuf_setlen(sb, sb->len + len);
}
break;
format = percent + 1;
+ if (*format == '%') {
+ strbuf_addch(sb, '%');
+ format++;
+ continue;
+ }
+
consumed = fn(sb, format, context);
if (consumed)
format += consumed;
return 0;
}
+void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *src)
+{
+ int i, len = src->len;
+
+ for (i = 0; i < len; i++) {
+ if (src->buf[i] == '%')
+ strbuf_addch(dst, '%');
+ strbuf_addch(dst, src->buf[i]);
+ }
+}
+
size_t strbuf_fread(struct strbuf *sb, size_t size, FILE *f)
{
size_t res;
res = fread(sb->buf + sb->len, 1, size, f);
if (res > 0)
strbuf_setlen(sb, sb->len + res);
- else if (res < 0 && oldalloc == 0)
+ else if (oldalloc == 0)
strbuf_release(sb);
return res;
}
return -1;
}
-int strbuf_getline(struct strbuf *sb, FILE *fp, int term)
+int strbuf_getwholeline(struct strbuf *sb, FILE *fp, int term)
{
int ch;
- strbuf_grow(sb, 0);
if (feof(fp))
return EOF;
strbuf_reset(sb);
while ((ch = fgetc(fp)) != EOF) {
- if (ch == term)
- break;
strbuf_grow(sb, 1);
sb->buf[sb->len++] = ch;
+ if (ch == term)
+ break;
}
if (ch == EOF && sb->len == 0)
return EOF;
return 0;
}
+int strbuf_getline(struct strbuf *sb, FILE *fp, int term)
+{
+ if (strbuf_getwholeline(sb, fp, term))
+ return EOF;
+ if (sb->buf[sb->len-1] == term)
+ strbuf_setlen(sb, sb->len-1);
+ return 0;
+}
+
int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint)
{
int fd, len;
return len;
}
-
-int strbuf_branchname(struct strbuf *sb, const char *name)
-{
- int len = strlen(name);
- if (interpret_branch_name(name, sb) == len)
- return 0;
- strbuf_add(sb, name, len);
- return len;
-}
-
-int strbuf_check_branch_ref(struct strbuf *sb, const char *name)
-{
- strbuf_branchname(sb, name);
- strbuf_splice(sb, 0, 0, "refs/heads/", 11);
- return check_ref_format(sb->buf);
-}