* If the string was not a valid UTF-8, *start pointer is set to NULL
* and the return value is undefined.
*/
-ucs_char_t pick_one_utf8_char(const char **start, size_t *remainder_p)
+static ucs_char_t pick_one_utf8_char(const char **start, size_t *remainder_p)
{
unsigned char *s = (unsigned char *)*start;
ucs_char_t ch;
return 1;
}
-static inline void strbuf_write(struct strbuf *sb, const char *buf, int len)
+static void strbuf_addchars(struct strbuf *sb, int c, size_t n)
{
- if (sb)
- strbuf_insert(sb, sb->len, buf, len);
- else
- fwrite(buf, len, 1, stdout);
-}
-
-static void print_spaces(struct strbuf *buf, int count)
-{
- static const char s[] = " ";
- while (count >= sizeof(s)) {
- strbuf_write(buf, s, sizeof(s) - 1);
- count -= sizeof(s) - 1;
- }
- strbuf_write(buf, s, count);
+ strbuf_grow(sb, n);
+ memset(sb->buf + sb->len, c, n);
+ strbuf_setlen(sb, sb->len + n);
}
static void strbuf_add_indented_text(struct strbuf *buf, const char *text,
const char *eol = strchrnul(text, '\n');
if (*eol == '\n')
eol++;
- print_spaces(buf, indent);
- strbuf_write(buf, text, eol - text);
+ strbuf_addchars(buf, ' ', indent);
+ strbuf_add(buf, text, eol - text);
text = eol;
indent = indent2;
}
}
+static size_t display_mode_esc_sequence_len(const char *s)
+{
+ const char *p = s;
+ if (*p++ != '\033')
+ return 0;
+ if (*p++ != '[')
+ return 0;
+ while (isdigit(*p) || *p == ';')
+ p++;
+ if (*p++ != 'm')
+ return 0;
+ return p - s;
+}
+
/*
* Wrap the text, if necessary. The variable indent is the indent for the
* first line, indent2 is the indent for all other lines.
* consumed (and no extra indent is necessary for the first line).
*/
int strbuf_add_wrapped_text(struct strbuf *buf,
- const char *text, int indent, int indent2, int width)
+ const char *text, int indent1, int indent2, int width)
{
- int w = indent, assume_utf8 = is_utf8(text);
- const char *bol = text, *space = NULL;
+ int indent, w, assume_utf8 = 1;
+ const char *bol, *space, *start = text;
+ size_t orig_len = buf->len;
if (width <= 0) {
- strbuf_add_indented_text(buf, text, indent, indent2);
+ strbuf_add_indented_text(buf, text, indent1, indent2);
return 1;
}
+retry:
+ bol = text;
+ w = indent = indent1;
+ space = NULL;
if (indent < 0) {
w = -indent;
space = text;
}
for (;;) {
- char c = *text;
+ char c;
+ size_t skip;
+
+ while ((skip = display_mode_esc_sequence_len(text)))
+ text += skip;
+
+ c = *text;
if (!c || isspace(c)) {
if (w < width || !space) {
const char *start = bol;
if (space)
start = space;
else
- print_spaces(buf, indent);
- strbuf_write(buf, start, text - start);
+ strbuf_addchars(buf, ' ', indent);
+ strbuf_add(buf, start, text - start);
if (!c)
return w;
space = text;
else if (c == '\n') {
space++;
if (*space == '\n') {
- strbuf_write(buf, "\n", 1);
+ strbuf_addch(buf, '\n');
goto new_line;
}
else if (!isalnum(*space))
goto new_line;
else
- strbuf_write(buf, " ", 1);
+ strbuf_addch(buf, ' ');
}
w++;
text++;
}
else {
new_line:
- strbuf_write(buf, "\n", 1);
+ strbuf_addch(buf, '\n');
text = bol = space + isspace(*space);
space = NULL;
w = indent = indent2;
}
continue;
}
- if (assume_utf8)
+ if (assume_utf8) {
w += utf8_width(&text, NULL);
- else {
+ if (!text) {
+ assume_utf8 = 0;
+ text = start;
+ strbuf_setlen(buf, orig_len);
+ goto retry;
+ }
+ } else {
w++;
text++;
}
}
}
-int print_wrapped_text(const char *text, int indent, int indent2, int width)
-{
- return strbuf_add_wrapped_text(NULL, text, indent, indent2, width);
-}
-
int is_encoding_utf8(const char *name)
{
if (!name)