From 21abb5113086a3d806c8d1a636227bec47e57fc8 Mon Sep 17 00:00:00 2001
From: Emanuele Giaquinta <exg@irssi.org>
Date: Tue, 10 Jun 2008 22:49:00 +0000
Subject: Cache charset related data rather than computing it everytime
 recode_{in,out} is called.

git-svn-id: file:///var/www/svn.irssi.org/SVN/irssi/trunk@4862 dbcabf3a-b0e7-0310-adc4-f8d773084564
---
 src/core/recode.c              | 44 ++++++++++++++++++------------------------
 src/core/recode.h              |  1 +
 src/fe-common/core/fe-recode.c |  1 +
 3 files changed, 21 insertions(+), 25 deletions(-)

diff --git a/src/core/recode.c b/src/core/recode.c
index 5a7c9aef..5e68cea8 100644
--- a/src/core/recode.c
+++ b/src/core/recode.c
@@ -25,21 +25,12 @@
 #include "lib-config/iconfig.h"
 #include "misc.h"
 
-static gboolean recode_get_charset(const char **charset)
-{
-	*charset = settings_get_str("term_charset");
-	if (**charset)
-		/* we use the same test as in src/fe-text/term.c:123 */
-		return (g_ascii_strcasecmp(*charset, "utf-8") == 0);
-
-	return g_get_charset(charset);
-}
+static char *translit_charset;
+static gboolean term_is_utf8;
 
 gboolean is_utf8(void)
 {
-	const char *charset;
-
-	return recode_get_charset(&charset);
+	return term_is_utf8;
 }
 
 static gboolean is_translit(const char *charset)
@@ -89,10 +80,9 @@ static char *find_conversion(const SERVER_REC *server, const char *target)
 char *recode_in(const SERVER_REC *server, const char *str, const char *target)
 {
 	const char *from = NULL;
-	const char *to = NULL;
-	char *translit_to = NULL;
+	const char *to = translit_charset;
 	char *recoded = NULL;
-	gboolean term_is_utf8, str_is_utf8, translit, recode, autodetect;
+	gboolean str_is_utf8, recode, autodetect;
 	int len;
 	int i;
 
@@ -113,12 +103,7 @@ char *recode_in(const SERVER_REC *server, const char *str, const char *target)
 			break;
 		}
 	}
-	translit = settings_get_bool("recode_transliterate");
 	autodetect = settings_get_bool("recode_autodetect_utf8");
-	term_is_utf8 = recode_get_charset(&to);
-
-	if (translit && !is_translit(to))
-		to = translit_to = g_strconcat(to, "//TRANSLIT", NULL);
 
 	if (autodetect && str_is_utf8)
 		if (term_is_utf8)
@@ -149,17 +134,16 @@ char *recode_in(const SERVER_REC *server, const char *str, const char *target)
 		if (!recoded)
 			recoded = g_strdup(str);
 	}
-	g_free(translit_to);
 	return recoded;
 }
 
 char *recode_out(const SERVER_REC *server, const char *str, const char *target)
 {
 	char *recoded = NULL;
-	const char *from = NULL;
+	const char *from = translit_charset;
 	const char *to = NULL;
 	char *translit_to = NULL;
-	gboolean translit, term_is_utf8, recode;
+	gboolean translit, recode;
 	int len;
 
 	if (!str)
@@ -182,7 +166,6 @@ char *recode_out(const SERVER_REC *server, const char *str, const char *target)
 		if (translit && !is_translit(to))
 			to = translit_to = g_strconcat(to ,"//TRANSLIT", NULL);
 
-		term_is_utf8 = recode_get_charset(&from);
 		recoded = g_convert(str, len, to, from, NULL, NULL, NULL);
 	}
 	g_free(translit_to);
@@ -192,6 +175,17 @@ char *recode_out(const SERVER_REC *server, const char *str, const char *target)
 	return recoded;
 }
 
+void recode_update_charset(void)
+{
+	const char *charset = settings_get_str("term_charset");
+	term_is_utf8 = !g_ascii_strcasecmp(charset, "UTF-8");
+	g_free(translit_charset);
+	if (settings_get_bool("recode_transliterate") && !is_translit(charset))
+		translit_charset = g_strconcat(charset, "//TRANSLIT", NULL);
+	else
+		translit_charset = g_strdup(charset);
+}
+
 void recode_init(void)
 {
 	settings_add_bool("misc", "recode", TRUE);
@@ -203,5 +197,5 @@ void recode_init(void)
 
 void recode_deinit(void)
 {
-
+	g_free(translit_charset);
 }
diff --git a/src/core/recode.h b/src/core/recode.h
index 9698ae2f..c8f867cf 100644
--- a/src/core/recode.h
+++ b/src/core/recode.h
@@ -5,6 +5,7 @@ char *recode_in (const SERVER_REC *server, const char *str, const char *target);
 char *recode_out (const SERVER_REC *server, const char *str, const char *target);
 gboolean is_valid_charset(const char *charset);
 gboolean is_utf8(void);
+void recode_update_charset(void);
 
 void recode_init (void);
 void recode_deinit (void);
diff --git a/src/fe-common/core/fe-recode.c b/src/fe-common/core/fe-recode.c
index f0ce6da9..dbc43574 100644
--- a/src/fe-common/core/fe-recode.c
+++ b/src/fe-common/core/fe-recode.c
@@ -172,6 +172,7 @@ static void read_settings(void)
 		term_charset = is_valid_charset(old_term_charset) ? g_strdup(old_term_charset) : NULL;
 		settings_set_str("term_charset", term_charset);
 	}
+	recode_update_charset();
 
 	if (recode_out_default)
 		g_free(recode_out_default);
-- 
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