* Add fixed string library

1 files changed, 77 insertions, 0 deletions

diff --git a/fstring.h b/fstring.h
new file mode 100644
index 000000000..30895ccc5
--- /dev/null
+++ b/fstring.h
@@ -0,0 +1,77 @@
+/*
+ * Functions for handling with fixed size strings
+ */
+
+#ifndef FSTRING_H
+#define FSTRING_H
+
+#include <sys/types.h>
+
+typedef struct f_str_s {
+	char *begin;
+	size_t len;
+	size_t size;
+} f_str_t;
+
+typedef struct f_tok_s {
+	f_str_t word;
+	size_t pos;
+} f_tok_t;
+
+/*
+ * Search first occurence of character in string
+ */
+ssize_t fstrchr (f_str_t *src, char c);
+
+/*
+ * Search last occurence of character in string
+ */
+ssize_t fstrrchr (f_str_t *src, char c);
+
+/*
+ * Search for pattern in orig
+ */
+ssize_t fstrstr (f_str_t *orig, f_str_t *pattern);
+
+/*
+ * Split string by tokens
+ * word contains parsed word
+ */
+int fstrtok (f_str_t *text, const char *sep, f_tok_t *state);
+
+/*
+ * Copy one string into other
+ */
+size_t fstrcpy (f_str_t *dest, f_str_t *src);
+
+/*
+ * Concatenate two strings
+ */
+size_t fstrcat (f_str_t *dest, f_str_t *src);
+
+/*
+ * Push one character to fstr
+ */
+int fstrpush (f_str_t *dest, char c);
+
+/*
+ * Allocate memory for f_str_t
+ */
+f_str_t* fstralloc (size_t len);
+
+/*
+ * Truncate string to its len
+ */
+f_str_t* fstrtruncate (f_str_t *orig);
+
+/*
+ * Enlarge string to new size
+ */
+f_str_t* fstrgrow (f_str_t *orig, size_t newlen);
+
+/*
+ * Free memory for f_str_t
+ */
+#define fstrfree(x) free((x)->begin); free((x))
+
+#endif