api: fix type of value returned by functions utf8_prev_char, utf8_next_char and utf8_add_offset

4 files changed, 32 insertions, 28 deletions

diff --git a/doc/en/weechat_plugin_api.en.asciidoc b/doc/en/weechat_plugin_api.en.asciidoc
index 4c70662a9..073066db3 100644
--- a/doc/en/weechat_plugin_api.en.asciidoc
+++ b/doc/en/weechat_plugin_api.en.asciidoc
@@ -2219,7 +2219,8 @@ Prototype:
 
 [source,C]
 ----
-char *weechat_utf8_prev_char (const char *string_start, const char *string);
+const char *weechat_utf8_prev_char (const char *string_start,
+                                    const char *string);
 ----
 
 Arguments:
@@ -2236,7 +2237,7 @@ C example:
 
 [source,C]
 ----
-char *prev_char = weechat_utf8_prev_char (string, ptr_in_string);
+const char *prev_char = weechat_utf8_prev_char (string, ptr_in_string);
 ----
 
 [NOTE]
@@ -2250,7 +2251,7 @@ Prototype:
 
 [source,C]
 ----
-char *weechat_utf8_next_char (const char *string);
+const char *weechat_utf8_next_char (const char *string);
 ----
 
 Arguments:
@@ -2265,7 +2266,7 @@ C example:
 
 [source,C]
 ----
-char *next_char = weechat_utf8_next_char (string);
+const char *next_char = weechat_utf8_next_char (string);
 ----
 
 [NOTE]
@@ -2522,7 +2523,7 @@ Prototype:
 
 [source,C]
 ----
-char *weechat_utf8_add_offset (const char *string, int offset);
+const char *weechat_utf8_add_offset (const char *string, int offset);
 ----
 
 Arguments:
@@ -2538,8 +2539,8 @@ C example:
 
 [source,C]
 ----
-char *str = "chêne";
-char *str2 = weechat_utf8_add_offset (str, 3);  /* points to "ne" */
+const char *str = "chêne";
+const char *str2 = weechat_utf8_add_offset (str, 3);  /* points to "ne" */
 ----
 
 [NOTE]
diff --git a/doc/fr/weechat_plugin_api.fr.asciidoc b/doc/fr/weechat_plugin_api.fr.asciidoc
index 3b0aeb5ba..da9491f5f 100644
--- a/doc/fr/weechat_plugin_api.fr.asciidoc
+++ b/doc/fr/weechat_plugin_api.fr.asciidoc
@@ -2261,7 +2261,8 @@ Prototype :
 
 [source,C]
 ----
-char *weechat_utf8_prev_char (const char *string_start, const char *string);
+const char *weechat_utf8_prev_char (const char *string_start,
+                                    const char *string);
 ----
 
 Paramètres :
@@ -2279,7 +2280,7 @@ Exemple en C :
 
 [source,C]
 ----
-char *prev_char = weechat_utf8_prev_char (string, ptr_in_string);
+const char *prev_char = weechat_utf8_prev_char (string, ptr_in_string);
 ----
 
 [NOTE]
@@ -2293,7 +2294,7 @@ Prototype :
 
 [source,C]
 ----
-char *weechat_utf8_next_char (const char *string);
+const char *weechat_utf8_next_char (const char *string);
 ----
 
 Paramètres :
@@ -2309,7 +2310,7 @@ Exemple en C :
 
 [source,C]
 ----
-char *next_char = weechat_utf8_next_char (string);
+const char *next_char = weechat_utf8_next_char (string);
 ----
 
 [NOTE]
@@ -2569,7 +2570,7 @@ Prototype :
 
 [source,C]
 ----
-char *weechat_utf8_add_offset (const char *string, int offset);
+const char *weechat_utf8_add_offset (const char *string, int offset);
 ----
 
 Paramètres :
@@ -2586,8 +2587,8 @@ Exemple en C :
 
 [source,C]
 ----
-char *str = "chêne";
-char *str2 = weechat_utf8_add_offset (str, 3);  /* pointe vers "ne" */
+const char *str = "chêne";
+const char *str2 = weechat_utf8_add_offset (str, 3);  /* pointe vers "ne" */
 ----
 
 [NOTE]
diff --git a/doc/it/weechat_plugin_api.it.asciidoc b/doc/it/weechat_plugin_api.it.asciidoc
index a12515ec0..f530a0350 100644
--- a/doc/it/weechat_plugin_api.it.asciidoc
+++ b/doc/it/weechat_plugin_api.it.asciidoc
@@ -2293,7 +2293,8 @@ Prototipo:
 
 [source,C]
 ----
-char *weechat_utf8_prev_char (const char *string_start, const char *string);
+const char *weechat_utf8_prev_char (const char *string_start,
+                                    const char *string);
 ----
 
 Argomenti:
@@ -2311,7 +2312,7 @@ Esempio in C:
 
 [source,C]
 ----
-char *prev_char = weechat_utf8_prev_char (string, ptr_in_string);
+const char *prev_char = weechat_utf8_prev_char (string, ptr_in_string);
 ----
 
 [NOTE]
@@ -2325,7 +2326,7 @@ Prototipo:
 
 [source,C]
 ----
-char *weechat_utf8_next_char (const char *string);
+const char *weechat_utf8_next_char (const char *string);
 ----
 
 Argomenti:
@@ -2341,7 +2342,7 @@ Esempio in C:
 
 [source,C]
 ----
-char *next_char = weechat_utf8_next_char (string);
+const char *next_char = weechat_utf8_next_char (string);
 ----
 
 [NOTE]
@@ -2605,7 +2606,7 @@ Prototipo:
 
 [source,C]
 ----
-char *weechat_utf8_add_offset (const char *string, int offset);
+const char *weechat_utf8_add_offset (const char *string, int offset);
 ----
 
 Argomenti:
@@ -2621,8 +2622,8 @@ Esempio in C:
 
 [source,C]
 ----
-char *str = "chêne";
-char *str2 = weechat_utf8_add_offset (str, 3);  /* points to "ne" */
+const char *str = "chêne";
+const char *str2 = weechat_utf8_add_offset (str, 3);  /* points to "ne" */
 ----
 
 [NOTE]
diff --git a/doc/ja/weechat_plugin_api.ja.asciidoc b/doc/ja/weechat_plugin_api.ja.asciidoc
index cbd7e72fb..0031ea0f1 100644
--- a/doc/ja/weechat_plugin_api.ja.asciidoc
+++ b/doc/ja/weechat_plugin_api.ja.asciidoc
@@ -2226,7 +2226,8 @@ weechat_utf8_normalize (string, '?');
 
 [source,C]
 ----
-char *weechat_utf8_prev_char (const char *string_start, const char *string);
+const char *weechat_utf8_prev_char (const char *string_start,
+                                    const char *string);
 ----
 
 引数:
@@ -2243,7 +2244,7 @@ C 言語での使用例:
 
 [source,C]
 ----
-char *prev_char = weechat_utf8_prev_char (string, ptr_in_string);
+const char *prev_char = weechat_utf8_prev_char (string, ptr_in_string);
 ----
 
 [NOTE]
@@ -2257,7 +2258,7 @@ char *prev_char = weechat_utf8_prev_char (string, ptr_in_string);
 
 [source,C]
 ----
-char *weechat_utf8_next_char (const char *string);
+const char *weechat_utf8_next_char (const char *string);
 ----
 
 引数:
@@ -2272,7 +2273,7 @@ C 言語での使用例:
 
 [source,C]
 ----
-char *next_char = weechat_utf8_next_char (string);
+const char *next_char = weechat_utf8_next_char (string);
 ----
 
 [NOTE]
@@ -2529,7 +2530,7 @@ UTF-8 文字列で N 文字前に進む。
 
 [source,C]
 ----
-char *weechat_utf8_add_offset (const char *string, int offset);
+const char *weechat_utf8_add_offset (const char *string, int offset);
 ----
 
 引数:
@@ -2545,8 +2546,8 @@ C 言語での使用例:
 
 [source,C]
 ----
-char *str = "chêne";
-char *str2 = weechat_utf8_add_offset (str, 3);  /* points to "ne" */
+const char *str = "chêne";
+const char *str2 = weechat_utf8_add_offset (str, 3);  /* points to "ne" */
 ----
 
 [NOTE]