--- a/th_string.h	Sat May 17 22:39:37 2014 +0300
+++ b/th_string.h	Tue May 20 04:27:30 2014 +0300
@@ -40,10 +40,19 @@
 #define th_toupper(c)   toupper((int)(unsigned char) c)
 
 
+enum
+{
+  TH_TRIM_START = 1,
+  TH_TRIM_END   = 2,
+  TH_TRIM_BOTH  = 3
+};
+
+
 /* Normal NUL-terminated string functions
  */
 char    *th_strdup(const char *);
 char    *th_strndup(const char *, const size_t);
+char    *th_strdup_trim(const char *, const int);
 
 int     th_strcasecmp(const char *, const char *);
 int     th_strncasecmp(const char *, const char *, size_t);