diff options
Diffstat (limited to 'src/buffer.c')
| -rw-r--r-- | src/buffer.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/src/buffer.c b/src/buffer.c index cfc6a7e..dc4a405 100644 --- a/src/buffer.c +++ b/src/buffer.c @@ -95,7 +95,7 @@ void gh_buf_clear(gh_buf *buf) int gh_buf_set(gh_buf *buf, const unsigned char *data, int len) { - if (len == 0 || data == NULL) { + if (len <= 0 || data == NULL) { gh_buf_clear(buf); } else { if (data != buf->ptr) { @@ -125,6 +125,9 @@ int gh_buf_putc(gh_buf *buf, int c) int gh_buf_put(gh_buf *buf, const unsigned char *data, int len) { + if (len <= 0) + return 0; + ENSURE_SIZE(buf, buf->size + len + 1); memmove(buf->ptr + buf->size, data, len); buf->size += len; @@ -272,15 +275,28 @@ void gh_buf_truncate(gh_buf *buf, int len) } } +void gh_buf_drop(gh_buf *buf, int n) +{ + if (n > 0) { + buf->size = buf->size - n; + if (buf->size) + memmove(buf->ptr, buf->ptr + n, buf->size); + + buf->ptr[buf->size] = '\0'; + } +} + void gh_buf_trim(gh_buf *buf) { - /* TODO: leading whitespace? */ - /* + int i = 0; + + if (!buf->size) + return; + while (i < buf->size && isspace(buf->ptr[i])) i++; - gh_buf_truncate(buf, i); - */ + gh_buf_drop(buf, i); /* rtrim */ while (buf->size > 0) { |