Add string utils

2 files changed, 33 insertions, 0 deletions

diff --git a/utils/string.c b/utils/string.c
new file mode 100644
index 0000000..1975306
--- /dev/null
+++ b/utils/string.c
@@ -0,0 +1,24 @@
+#include <ctype.h>
+#include <string.h>
+
+char *
+ltrim(char *s)
+{
+    while(isspace(*s)) s++;
+    return s;
+}
+
+char *
+rtrim(char *s)
+{
+    char* back = s + strlen(s);
+    while(isspace(*--back));
+    *(back+1) = '\0';
+    return s;
+}
+
+char *
+trim(char *s)
+{
+    return rtrim(ltrim(s));
+}
\ No newline at end of file
diff --git a/utils/string.h b/utils/string.h
new file mode 100644
index 0000000..a4782cb
--- /dev/null
+++ b/utils/string.h
@@ -0,0 +1,9 @@
+#ifndef __UTILS_STRING_H__
+#define __UTILS_STRING_H__
+#include <string.h>
+
+char *ltrim(char *);
+char *rtrim(char *);
+char *trim(char *);
+
+#endif /* __UTILS_STRING_H__ */