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irc: add comments in function irc_color_decode

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This commit is contained in:
Sebastien Helleu
2012-11-14 20:16:12 +01:00
parent 5328fdcc73
commit bb09670757
1 changed files with 14 additions and 1 deletions
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src/plugins/irc/irc-color.c
+14 -1
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@@ -68,6 +68,10 @@ irc_color_decode (const char *string, int keep_colors)
const char *remapped_color;
int fg, bg, bold, reverse, italic, underline, rc;
/*
* create output string with size of length*2 (with min 128 bytes),
* this string will be realloc() later with a larger size if needed
*/
out_length = (strlen (string) * 2) + 1;
if (out_length < 128)
out_length = 128;
@@ -75,6 +79,7 @@ irc_color_decode (const char *string, int keep_colors)
if (!out)
return NULL;
/* initialize attributes */
bold = 0;
reverse = 0;
italic = 0;
@@ -220,6 +225,10 @@ irc_color_decode (const char *string, int keep_colors)
}
break;
default:
/*
* we are not on an IRC color code, just copy the UTF-8 char
* into "str_to_add"
*/
length = weechat_utf8_char_size ((char *)ptr_string);
if (length == 0)
length = 1;
@@ -228,17 +237,21 @@ irc_color_decode (const char *string, int keep_colors)
ptr_string += length;
break;
}
/* add "str_to_add" (if not empty) to "out" */
if (str_to_add[0])
{
/* if "out" is too small for adding "str_to_add", do a realloc() */
length_to_add = strlen (str_to_add);
if (out_pos + length_to_add >= out_length)
if (out_pos + length_to_add + 1 > out_length)
{
/* try to double the size of "out" */
out_length *= 2;
out2 = realloc (out, out_length);
if (!out2)
return (char *)out;
out = out2;
}
/* add "str_to_add" to "out" */
memcpy (out + out_pos, str_to_add, length_to_add + 1);
out_pos += length_to_add;
}