utf8: Add l_ascii_strup

3 files changed, 34 insertions, 0 deletions

diff --git a/ell/ell.sym b/ell/ell.sym
index a7fdbb90..2c207d60 100644
--- a/ell/ell.sym
+++ b/ell/ell.sym
@@ -50,6 +50,7 @@ global:
 	/* utf8 */
 	l_ascii_table;
 	l_ascii_strdown;
+	l_ascii_strup;
 	l_utf8_get_codepoint;
 	l_utf8_validate;
 	l_utf8_strlen;
diff --git a/ell/utf8.c b/ell/utf8.c
index 4f33f557..5bf6b070 100644
--- a/ell/utf8.c
+++ b/ell/utf8.c
@@ -75,6 +75,38 @@ LIB_EXPORT char *l_ascii_strdown(const char *str, ssize_t len)
 	return ret;
 }
 
+/**
+ * l_ascii_strup
+ * @str: a pointer to an ASCII string
+ * @len: maximum bytes to process or negative if string is null terminated
+ *
+ * Returns: Newly allocated string with all lower case characters converted
+ * to upper case.
+ **/
+LIB_EXPORT char *l_ascii_strup(const char *str, ssize_t len)
+{
+	size_t slen;
+	size_t i;
+	char *ret;
+
+	if (!str)
+		return NULL;
+
+	if (len < 0)
+		slen = strlen(str);
+	else
+		slen = minsize(strlen(str), (size_t) len);
+
+	ret = l_malloc(slen + 1);
+
+	for (i = 0; i < slen; i++)
+		ret[i] = l_ascii_toupper(str[i]);
+
+	ret[i] = '\0';
+
+	return ret;
+}
+
 static inline bool __attribute__ ((always_inline))
 			valid_unicode(wchar_t c)
 {
diff --git a/ell/utf8.h b/ell/utf8.h
index 092e70f6..a1dd40b3 100644
--- a/ell/utf8.h
+++ b/ell/utf8.h
@@ -104,6 +104,7 @@ static inline __attribute__ ((always_inline)) char l_ascii_tolower(char c)
 }
 
 char *l_ascii_strdown(const char *str, ssize_t len);
+char *l_ascii_strup(const char *str, ssize_t len);
 
 bool l_utf8_validate(const char *src, size_t len, const char **end);
 size_t l_utf8_strlen(const char *str);