/* ======== SourceMM ========
 * Copyright (C) 2004-2007 Metamod:Source Development Team
 * No warranties of any kind
 *
 * License: zlib/libpng
 *
 * Author(s): David "BAILOPAN" Anderson
 * ============================
 */

#ifndef _INCLUDE_UTIL_H
#define _INCLUDE_UTIL_H

#include <stdarg.h>

/**
 * @brief Utility functions
 * @file util.h
 */

/**
 * @brief Returns true is string is not blank, false otherwise.
 */
#define IS_STR_FILLED(var) (var != NULL && var[0] != '\0')

/**
 * @brief Returns a pointer to the extension in a file name.
 */
const char *UTIL_GetExtension(const char *file);

/**
 * @brief Removes C-style comments from string.
 */
void UTIL_TrimComments(char *buffer);

/**
 * @brief Removes whitespace characters from left side of string.
 */
void UTIL_TrimLeft(char *buffer);

/**
 * @brief Removes whitespace characters from right side of string.
 */
void UTIL_TrimRight(char *buffer);

/**
 * @brief Breaks a string at the first space until it reaches a non-space.
 */
void UTIL_KeySplit(const char *str, char *buf1, size_t len1, char *buf2, size_t len2);

/**
 * @brief Compares two file paths.
 */
bool UTIL_PathCmp(const char *path1, const char *path2);

/**
 * @brief Same as snprintf except that it ensures the string buffer is null terminated.
 */
size_t UTIL_Format(char *buffer, size_t maxlength, const char *fmt, ...);

/**
 * @brief Same as vsnprintf except that it ensures the string buffer is null terminated.
 */
size_t UTIL_FormatArgs(char *buffer, size_t maxlength, const char *fmt, va_list params);

/**
 * @brief Forms a relative path given two absolute paths.
 *
 * @param buffer		Buffer to store relative path in.
 * @param maxlength		Maximum length of the output buffer.
 * @param relTo			Destination folder to use as a working directory.
 *						Final folder name should not be pathchar-terminated.
 * @param relFrom		Source file or folder to use as a target.
 * @return				True on success, false on failure.
 */
bool UTIL_Relatize(char buffer[],
				   size_t maxlength,
				   const char *relTo,
				   const char *relFrom);

#endif //_INCLUDE_UTIL_H