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irc: add option irc.look.nick_color_hash: hash algorithm to find nick color (patch #8062)

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This commit is contained in:
Sebastien Helleu
2013-06-02 23:00:26 +02:00
parent c070481d0b
commit 4654568413
16 changed files with 259 additions and 153 deletions
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src/plugins/irc/irc-nick.c
+21 -5
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@@ -144,7 +144,7 @@ irc_nick_strdup_for_color (const char *nickname)
int
irc_nick_hash_color (const char *nickname)
{
int color;
unsigned long color;
const char *ptr_nick;
if (!irc_config_nick_colors)
@@ -153,12 +153,28 @@ irc_nick_hash_color (const char *nickname)
if (irc_config_num_nick_colors == 0)
return 0;
color = 0;
ptr_nick = nickname;
while (ptr_nick && ptr_nick[0])
switch (weechat_config_integer (irc_config_look_nick_color_hash))
{
color += weechat_utf8_char_int (ptr_nick);
ptr_nick = weechat_utf8_next_char (ptr_nick);
case IRC_CONFIG_LOOK_NICK_COLOR_HASH_DJB2:
/* variant of djb2 hash */
color = 5381;
while (ptr_nick && ptr_nick[0])
{
color ^= (color << 5) + (color >> 2) + weechat_utf8_char_int (ptr_nick);
ptr_nick = weechat_utf8_next_char (ptr_nick);
}
break;
case IRC_CONFIG_LOOK_NICK_COLOR_HASH_SUM:
/* sum of letters */
color = 0;
while (ptr_nick && ptr_nick[0])
{
color += weechat_utf8_char_int (ptr_nick);
ptr_nick = weechat_utf8_next_char (ptr_nick);
}
break;
}
return (color % irc_config_num_nick_colors);