From f9f6d76e9a2fef943632145c7e204ec7a4f1db71 Mon Sep 17 00:00:00 2001
From: Vincent Torri <vincent.torri@gmail.com>
Date: Fri, 20 Apr 2012 07:51:58 +0000
Subject: [PATCH] 	* NEWS: 	* src/lib/evil_string.c: 	*
 src/lib/evil_string.h: 	Add strcasestr() API.

SVN revision: 70350
---
 legacy/evil/ChangeLog             |  7 +++++++
 legacy/evil/NEWS                  |  1 +
 legacy/evil/src/lib/evil_string.c | 34 +++++++++++++++++++++++++++++++
 legacy/evil/src/lib/evil_string.h | 18 ++++++++++++++++
 4 files changed, 60 insertions(+)

diff --git a/legacy/evil/ChangeLog b/legacy/evil/ChangeLog
index 199e2e8b16..17ed8062d0 100644
--- a/legacy/evil/ChangeLog
+++ b/legacy/evil/ChangeLog
@@ -1,3 +1,10 @@
+2012-04-20  Vincent Torri  <doursse at users dot sf dot net>
+
+	* NEWS:
+	* src/lib/evil_string.c:
+	* src/lib/evil_string.h:
+	Add strcasestr() API.
+
 2012-04-12  Vincent Torri  <doursse at users dot sf dot net>
 
 	* NEWS:
diff --git a/legacy/evil/NEWS b/legacy/evil/NEWS
index 938e40926f..aacc92a14a 100644
--- a/legacy/evil/NEWS
+++ b/legacy/evil/NEWS
@@ -5,6 +5,7 @@ Evil NEWS - User visible changes.
 ** Add evil_path_is_absolute() API
 ** Add POSIX printf() family functions
 ** Add S_ISLNK macro
+** Add strcasestr() API
 ** Do not declare and define localtime_r() if it's already defined
 
 * Evil 1.0:
diff --git a/legacy/evil/src/lib/evil_string.c b/legacy/evil/src/lib/evil_string.c
index 5a89d6815f..ffbe308b67 100644
--- a/legacy/evil/src/lib/evil_string.c
+++ b/legacy/evil/src/lib/evil_string.c
@@ -92,3 +92,37 @@ int strcasecmp(const char *s1, const char *s2)
 }
 
 #endif /* _MSC_VER */
+
+char *strcasestr(const char *haystack, const char *needle)
+{
+   size_t length_needle;
+   size_t length_haystack;
+   size_t i;
+
+   if (!haystack || !needle)
+     return NULL;
+
+   length_needle = strlen(needle);
+   length_haystack = strlen(haystack) - length_needle + 1;
+
+   for (i = 0; i < length_haystack; i++)
+     {
+        size_t j;
+
+        for (j = 0; j < length_needle; j++)
+          {
+            unsigned char c1;
+            unsigned char c2;
+
+            c1 = haystack[i+j];
+            c2 = needle[j];
+            if (toupper(c1) != toupper(c2))
+              goto next;
+          }
+        return (char *) haystack + i;
+     next:
+        ;
+     }
+
+   return NULL;
+}
diff --git a/legacy/evil/src/lib/evil_string.h b/legacy/evil/src/lib/evil_string.h
index cce9636c3c..9141eba762 100644
--- a/legacy/evil/src/lib/evil_string.h
+++ b/legacy/evil/src/lib/evil_string.h
@@ -125,6 +125,24 @@ EAPI int strcasecmp(const char *s1, const char *s2);
 
 #endif /* _MSC_VER */
 
+/**
+ * @brief Locatea substring into a string, ignoring case.
+ *
+ * @param haystack The string to search in.
+ * @param needle The substring to find.
+ * @return
+ *
+ * This function locates the string @p needle into the string @p haystack,
+ * ignoring the case of the characters. It returns apointer to the
+ * beginning of the substring, or NULL if the substring is not found.
+ * If @p haystack or @p needle are @c NULL, this function returns @c NULL.
+ *
+ * Conformity: Non applicable.
+ *
+ * Supported OS: Windows XP, Windows CE
+ */
+EAPI char *strcasestr(const char *haystack, const char *needle);
+
 
 /**
  * @}