diff options
Diffstat (limited to 'strbuf.c')
| -rw-r--r-- | strbuf.c | 58 |
1 files changed, 49 insertions, 9 deletions
@@ -204,6 +204,54 @@ void strbuf_addf(struct strbuf *sb, const char *fmt, ...) va_end(ap); } +static void add_lines(struct strbuf *out, + const char *prefix1, + const char *prefix2, + const char *buf, size_t size) +{ + while (size) { + const char *prefix; + const char *next = memchr(buf, '\n', size); + next = next ? (next + 1) : (buf + size); + + prefix = (prefix2 && buf[0] == '\n') ? prefix2 : prefix1; + strbuf_addstr(out, prefix); + strbuf_add(out, buf, next - buf); + size -= next - buf; + buf = next; + } + strbuf_complete_line(out); +} + +void strbuf_add_commented_lines(struct strbuf *out, const char *buf, size_t size) +{ + static char prefix1[3]; + static char prefix2[2]; + + if (prefix1[0] != comment_line_char) { + sprintf(prefix1, "%c ", comment_line_char); + sprintf(prefix2, "%c", comment_line_char); + } + add_lines(out, prefix1, prefix2, buf, size); +} + +void strbuf_commented_addf(struct strbuf *sb, const char *fmt, ...) +{ + va_list params; + struct strbuf buf = STRBUF_INIT; + int incomplete_line = sb->len && sb->buf[sb->len - 1] != '\n'; + + va_start(params, fmt); + strbuf_vaddf(&buf, fmt, params); + va_end(params); + + strbuf_add_commented_lines(sb, buf.buf, buf.len); + if (incomplete_line) + sb->buf[--sb->len] = '\0'; + + strbuf_release(&buf); +} + void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap) { int len; @@ -414,15 +462,7 @@ int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint) void strbuf_add_lines(struct strbuf *out, const char *prefix, const char *buf, size_t size) { - while (size) { - const char *next = memchr(buf, '\n', size); - next = next ? (next + 1) : (buf + size); - strbuf_addstr(out, prefix); - strbuf_add(out, buf, next - buf); - size -= next - buf; - buf = next; - } - strbuf_complete_line(out); + add_lines(out, prefix, NULL, buf, size); } void strbuf_addstr_xml_quoted(struct strbuf *buf, const char *s) |