mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-11-28 09:13:08 +03:00
6807b4208a
NetSurf includes are now done with ""s and other system includes with <>s as C intended. The scandeps tool has been updated to only look for ""ed includes, and to verify that the files exist in the tree before adding them to the dependency lines. The depend rule has therefore been augmented to make sure the autogenerated files are built before it is run. This is untested under self-hosted RISC OS builds. All else tested and works. svn path=/trunk/netsurf/; revision=3307
155 lines
3.5 KiB
C
155 lines
3.5 KiB
C
/*
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* This file is part of NetSurf, http://netsurf-browser.org/
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* Licensed under the GNU General Public License,
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* http://www.opensource.org/licenses/gpl-license
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* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
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* Copyright 2006 Rob Kendrick <rjek@rjek.com>
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*/
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/** \file
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* Localised message support (implementation).
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*
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* Native language messages are loaded from a file and stored hashed by key for
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* fast access.
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*/
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#include <assert.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdbool.h>
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#include <string.h>
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#include "utils/log.h"
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#include "utils/messages.h"
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#include "utils/utils.h"
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#include "utils/hashtable.h"
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/** We store the messages in a fixed-size hash table. */
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#define HASH_SIZE 101
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/** The hash table used to store the standard Messages file for the old API */
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static struct hash_table *messages_hash = NULL;
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/**
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* Read keys and values from messages file.
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*
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* \param path pathname of messages file
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* \param ctx struct hash_table to merge with, or NULL for a new one.
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* \return struct hash_table containing the context or NULL in case of error.
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*/
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struct hash_table *messages_load_ctx(const char *path, struct hash_table *ctx)
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{
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char s[400];
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FILE *fp;
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assert(path != NULL);
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ctx = (ctx != NULL) ? ctx : hash_create(HASH_SIZE);
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if (ctx == NULL) {
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LOG(("Unable to create hash table for messages file %s", path));
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return NULL;
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}
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fp = fopen(path, "r");
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if (!fp) {
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snprintf(s, sizeof s, "Unable to open messages file "
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"\"%.100s\": %s", path, strerror(errno));
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s[sizeof s - 1] = 0;
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LOG(("%s", s));
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return NULL;
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}
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while (fgets(s, sizeof s, fp)) {
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char *colon, *value;
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if (s[0] == 0 || s[0] == '#')
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continue;
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s[strlen(s) - 1] = 0; /* remove \n at end */
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colon = strchr(s, ':');
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if (!colon)
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continue;
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*colon = 0; /* terminate key */
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value = colon + 1;
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if (hash_add(ctx, s, value) == false) {
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LOG(("Unable to add %s:%s to hash table of %s",
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s, value, path));
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fclose(fp);
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return NULL;
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}
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}
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fclose(fp);
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return ctx;
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}
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/**
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* Read keys and values from messages file into the standard Messages hash.
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*
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* \param path pathname of messages file
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*
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* The messages are merged with any previously loaded messages. Any keys which
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* are present already are replaced with the new value.
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*
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* Exits through die() in case of error.
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*/
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void messages_load(const char *path)
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{
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struct hash_table *m;
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char s[400];
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assert(path != NULL);
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m = messages_load_ctx(path, messages_hash);
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if (m == NULL) {
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LOG(("Unable to open Messages file '%s'. Possible reason: %s",
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path, strerror(errno)));
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snprintf(s, sizeof s,
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"Unable to open Messages file '%s'.", path);
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die(s);
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}
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messages_hash = m;
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}
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/**
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* Fast lookup of a message by key.
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*
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* \param key key of message
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* \param ctx context of messages file to look up in
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* \return value of message, or key if not found
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*/
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const char *messages_get_ctx(const char *key, struct hash_table *ctx)
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{
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const char *r;
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assert(key != NULL);
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/* If we're called with no context, it's nicer to return the
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* key rather than explode - this allows attempts to get messages
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* before messages_hash is set up to fail gracefully, for example */
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if (ctx == NULL)
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return key;
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r = hash_get(ctx, key);
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return r ? r : key;
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}
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/**
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* Fast lookup of a message by key from the standard Messages hash.
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*
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* \param key key of message
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* \return value of message, or key if not found
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*/
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const char *messages_get(const char *key)
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{
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return messages_get_ctx(key, messages_hash);
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}
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