diff options
Diffstat (limited to 'utf8.c')
| -rw-r--r-- | utf8.c | 43 |
1 files changed, 35 insertions, 8 deletions
@@ -323,7 +323,7 @@ static size_t display_mode_esc_sequence_len(const char *s) * If indent is negative, assume that already -indent columns have been * consumed (and no extra indent is necessary for the first line). */ -int strbuf_add_wrapped_text(struct strbuf *buf, +void strbuf_add_wrapped_text(struct strbuf *buf, const char *text, int indent1, int indent2, int width) { int indent, w, assume_utf8 = 1; @@ -332,7 +332,7 @@ int strbuf_add_wrapped_text(struct strbuf *buf, if (width <= 0) { strbuf_add_indented_text(buf, text, indent1, indent2); - return 1; + return; } retry: @@ -353,17 +353,17 @@ retry: c = *text; if (!c || isspace(c)) { - if (w < width || !space) { + if (w <= width || !space) { const char *start = bol; if (!c && text == start) - return w; + return; if (space) start = space; else strbuf_addchars(buf, ' ', indent); strbuf_add(buf, start, text - start); if (!c) - return w; + return; space = text; if (c == '\t') w |= 0x07; @@ -405,13 +405,12 @@ new_line: } } -int strbuf_add_wrapped_bytes(struct strbuf *buf, const char *data, int len, +void strbuf_add_wrapped_bytes(struct strbuf *buf, const char *data, int len, int indent, int indent2, int width) { char *tmp = xstrndup(data, len); - int r = strbuf_add_wrapped_text(buf, tmp, indent, indent2, width); + strbuf_add_wrapped_text(buf, tmp, indent, indent2, width); free(tmp); - return r; } int is_encoding_utf8(const char *name) @@ -423,6 +422,34 @@ int is_encoding_utf8(const char *name) return 0; } +int same_encoding(const char *src, const char *dst) +{ + if (is_encoding_utf8(src) && is_encoding_utf8(dst)) + return 1; + return !strcasecmp(src, dst); +} + +/* + * Wrapper for fprintf and returns the total number of columns required + * for the printed string, assuming that the string is utf8. + */ +int utf8_fprintf(FILE *stream, const char *format, ...) +{ + struct strbuf buf = STRBUF_INIT; + va_list arg; + int columns; + + va_start(arg, format); + strbuf_vaddf(&buf, format, arg); + va_end(arg); + + columns = fputs(buf.buf, stream); + if (0 <= columns) /* keep the error from the I/O */ + columns = utf8_strwidth(buf.buf); + strbuf_release(&buf); + return columns; +} + /* * Given a buffer and its encoding, return it re-encoded * with iconv. If the conversion fails, returns NULL. |