From 3178eda501fbfde16e9dd79b513de66e35f5dd41 Mon Sep 17 00:00:00 2001
From: Al <albarrentine@gmail.com>
Date: Sun, 2 Aug 2015 14:35:18 -0600
Subject: [PATCH] [utils] string_contains_hyphen method

---
 src/string_utils.c | 21 +++++++++++++++++++++
 src/string_utils.h |  3 +++
 2 files changed, 24 insertions(+)

diff --git a/src/string_utils.c b/src/string_utils.c
index d8c8da03..9dcbfb9e 100644
--- a/src/string_utils.c
+++ b/src/string_utils.c
@@ -335,6 +335,27 @@ inline size_t utf8_common_prefix_ignore_separators(const char *str1, const char
 }
 
 
+bool string_contains_hyphen_len(char *str, size_t len) {
+    uint8_t *ptr = (uint8_t *)str;
+    int32_t codepoint;
+    ssize_t idx = 0;
+
+    while (idx < len) {
+        ssize_t char_len = utf8proc_iterate(ptr, len, &codepoint);
+        
+        if (char_len <= 0) break;
+
+        if (utf8_is_hyphen(codepoint)) return true;
+        ptr += char_len;
+        idx += char_len;
+    }
+    return false;
+}
+
+inline bool string_contains_hyphen(char *str) {
+    return string_contains_hyphen_len(str, strlen(str));
+}
+
 size_t string_rtrim(char *str) {
     size_t spaces = 0;
 
diff --git a/src/string_utils.h b/src/string_utils.h
index 5a2bf550..9bf8a86d 100644
--- a/src/string_utils.h
+++ b/src/string_utils.h
@@ -69,6 +69,9 @@ bool utf8_is_punctuation(int cat);
 bool utf8_is_symbol(int cat);
 bool utf8_is_separator(int cat);
 
+bool string_contains_hyphen(char *str);
+bool string_contains_hyphen_len(char *str, size_t len);
+
 size_t string_ltrim(char *str);
 size_t string_rtrim(char *str);
 size_t string_trim(char *str);