netsurf/utils/messages.h
2016-12-11 17:33:31 +00:00

99 lines
3.1 KiB
C

/*
* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file
* Localised message support (interface).
*
* The messages module loads a file of keys and associated strings, and
* provides fast lookup by key. The messages file consists of key:value lines,
* comment lines starting with #, and other lines are ignored. Use
* messages_load() to read the file into memory. To lookup a key, use
* messages_get("key").
*
* It can also load additional messages files into different contexts and allow
* you to look up values in it independantly from the standard shared Messages
* file table. Use the _ctx versions of the functions to do this.
*/
#ifndef _NETSURF_UTILS_MESSAGES_H_
#define _NETSURF_UTILS_MESSAGES_H_
#include <stdint.h>
#include "utils/errors.h"
/**
* Read keys and values from messages file into the standard Messages hash.
*
* The messages are merged with any previously loaded messages. Any
* keys which are present already are replaced with the new value. The
* file may be gzip compressed.
*
* \param path pathname of messages file.
* \return NSERROR_OK on success or error code on faliure.
*/
nserror messages_add_from_file(const char *path);
/**
* Read keys and values from inline message data into the standard Messages hash.
*
* The messages are merged with any previously loaded messages. Any
* keys which are present already are replaced with the new value. The
* data may be gzip compressed.
*
* \param data The inline message data.
* \param data_size The length of the message data.
* \return NSERROR_OK on success or error code on faliure.
*/
nserror messages_add_from_inline(const uint8_t *data, size_t data_size);
/**
* Fast lookup of a message by key from the standard Messages hash.
*
* \param key key of message
* \return value of message, or key if not found
*/
const char *messages_get(const char *key);
/**
* lookup of a message by errorcode from the standard Messages hash.
*
* \param code errorcode of message
* \return message text
*/
const char *messages_get_errorcode(nserror code);
/**
* Formatted message from a key in the global message hash.
*
* \param key key of message
* \param ... message parameters
* \return buffer containing formatted message text or NULL if memory
* is unavailable. The caller owns the returned buffer and is
* responsible for freeing it.
*/
char *messages_get_buff(const char *key, ...);
/**
* Free memory used by the standard Messages hash
*/
void messages_destroy(void);
#endif