* 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;
if (width <= 0) {
strbuf_add_indented_text(buf, text, indent1, indent2);
- return 1;
+ return;
}
retry:
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;
}
}
-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)
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.
#else
typedef char * iconv_ibp;
#endif
-char *reencode_string(const char *in, const char *out_encoding, const char *in_encoding)
+char *reencode_string_iconv(const char *in, size_t insz, iconv_t conv)
{
- iconv_t conv;
- size_t insz, outsz, outalloc;
+ size_t outsz, outalloc;
char *out, *outpos;
iconv_ibp cp;
- if (!in_encoding)
- return NULL;
- conv = iconv_open(out_encoding, in_encoding);
- if (conv == (iconv_t) -1)
- return NULL;
- insz = strlen(in);
outsz = insz;
outalloc = outsz + 1; /* for terminating NUL */
out = xmalloc(outalloc);
size_t sofar;
if (errno != E2BIG) {
free(out);
- iconv_close(conv);
return NULL;
}
/* insz has remaining number of bytes.
break;
}
}
+ return out;
+}
+
+char *reencode_string(const char *in, const char *out_encoding, const char *in_encoding)
+{
+ iconv_t conv;
+ char *out;
+
+ if (!in_encoding)
+ return NULL;
+ conv = iconv_open(out_encoding, in_encoding);
+ if (conv == (iconv_t) -1)
+ return NULL;
+ out = reencode_string_iconv(in, strlen(in), conv);
iconv_close(conv);
return out;
}