api: fix type of value returned by function strcasestr

ChangeLog.asciidoc

@@ -40,6 +40,7 @@ https://weechat.org/files/releasenotes/ReleaseNotes-devel.html[release notes]
 * core: fix bar item "scroll" after /buffer clear (closes #448)
 * core: fix display of time in bare display when option
   weechat.look.buffer_time_format is set to empty string (closes #441)
+* api: fix type of value returned by function strcasestr
 * fifo: fix send error on Cygwin when something is received in the pipe
   (closes #436)
 * irc: decode/encode only text in IRC messages and not the headers

doc/en/weechat_plugin_api.en.asciidoc

@@ -763,7 +763,7 @@ Prototype:
 
 [source,C]
 ----
-char *weechat_strcasestr (const char *string, const char *search);
+const char *weechat_strcasestr (const char *string, const char *search);
 ----
 
 Arguments:
@@ -779,7 +779,7 @@ C example:
 
 [source,C]
 ----
-char *pos = weechat_strcasestr ("aBcDeF", "de");  /* result: pointer to "DeF" */
+const char *pos = weechat_strcasestr ("aBcDeF", "de");  /* result: pointer to "DeF" */
 ----
 
 [NOTE]

doc/fr/weechat_plugin_api.fr.asciidoc

@@ -772,7 +772,7 @@ Prototype :
 
 [source,C]
 ----
-char *weechat_strcasestr (const char *string, const char *search);
+const char *weechat_strcasestr (const char *string, const char *search);
 ----
 
 Paramètres :
@@ -788,7 +788,7 @@ Exemple en C :
 
 [source,C]
 ----
-char *pos = weechat_strcasestr ("aBcDeF", "de");  /* résultat : pointeur vers "DeF" */
+const char *pos = weechat_strcasestr ("aBcDeF", "de");  /* résultat : pointeur vers "DeF" */
 ----
 
 [NOTE]

doc/it/weechat_plugin_api.it.asciidoc

@@ -795,7 +795,7 @@ Prototipo:
 
 [source,C]
 ----
-char *weechat_strcasestr (const char *string, const char *search);
+const char *weechat_strcasestr (const char *string, const char *search);
 ----
 
 Argomenti:
@@ -811,7 +811,7 @@ Esempio in C:
 
 [source,C]
 ----
-char *pos = weechat_strcasestr ("aBcDeF", "de");  /* risultato: puntatore a "DeF" */
+const char *pos = weechat_strcasestr ("aBcDeF", "de");  /* risultato: puntatore a "DeF" */
 ----
 
 [NOTE]

doc/ja/weechat_plugin_api.ja.asciidoc

@@ -767,7 +767,7 @@ int diff = weechat_strcmp_ignore_chars ("a-b", "--a-e", "-", 1);  /* == -3 */
 
 [source,C]
 ----
-char *weechat_strcasestr (const char *string, const char *search);
+const char *weechat_strcasestr (const char *string, const char *search);
 ----
 
 引数:
@@ -783,7 +783,7 @@ C 言語での使用例:
 
 [source,C]
 ----
-char *pos = weechat_strcasestr ("aBcDeF", "de");  /* result: pointer to "DeF" */
+const char *pos = weechat_strcasestr ("aBcDeF", "de");  /* result: pointer to "DeF" */
 ----
 
 [NOTE]

src/core/wee-string.c

@@ -341,7 +341,7 @@ string_strcmp_ignore_chars (const char *string1, const char *string2,
  * Returns pointer to string found, or NULL if not found.
  */
 
-char *
+const char *
 string_strcasestr (const char *string, const char *search)
 {
     int length_search;
@@ -1051,8 +1051,8 @@ string_regcomp (void *preg, const char *regex, int default_flags)
 int
 string_has_highlight (const char *string, const char *highlight_words)
 {
-    char *msg, *highlight, *match, *match_pre, *match_post, *msg_pos;
-    char *pos, *pos_end;
+    const char *match, *match_pre, *match_post, *msg_pos;
+    char *msg, *highlight, *pos, *pos_end;
     int end, length, startswith, endswith, wildcard_start, wildcard_end, flags;
 
     if (!string || !string[0] || !highlight_words || !highlight_words[0])

src/core/wee-string.h

@@ -38,7 +38,7 @@ extern int string_strcmp_ignore_chars (const char *string1,
                                        const char *string2,
                                        const char *chars_ignored,
                                        int case_sensitive);
-extern char *string_strcasestr (const char *string, const char *search);
+extern const char *string_strcasestr (const char *string, const char *search);
 extern int string_match (const char *string, const char *mask,
                          int case_sensitive);
 extern char *string_replace (const char *string, const char *search,

src/gui/gui-color.c

@@ -1001,8 +1001,8 @@ gui_color_emphasize (const char *string,
                      regex_t *regex)
 {
     regmatch_t regex_match;
-    char *result, *result2, *string_no_color, *pos;
-    const char *ptr_string, *ptr_no_color, *color_emphasis;
+    char *result, *result2, *string_no_color;
+    const char *ptr_string, *ptr_no_color, *color_emphasis, *pos;
     int rc, length_search, length_emphasis, length_result;
     int pos1, pos2, real_pos1, real_pos2, count_emphasis;
 

src/plugins/weechat-plugin.h

@@ -57,7 +57,7 @@ struct timeval;
  * please change the date with current one; for a second change at same
  * date, increment the 01, otherwise please keep 01.
  */
-#define WEECHAT_PLUGIN_API_VERSION "20150624-01"
+#define WEECHAT_PLUGIN_API_VERSION "20150703-01"
 
 /* macros for defining plugin infos */
 #define WEECHAT_PLUGIN_NAME(__name)                                     \
@@ -269,7 +269,7 @@ struct t_weechat_plugin
                               int max, int range);
     int (*strcmp_ignore_chars) (const char *string1, const char *string2,
                                 const char *chars_ignored, int case_sensitive);
-    char *(*strcasestr) (const char *string, const char *search);
+    const char *(*strcasestr) (const char *string, const char *search);
     int (*strlen_screen) (const char *string);
     int (*string_match) (const char *string, const char *mask,
                          int case_sensitive);