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/* |
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* help.c -- Help command |
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* |
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* Copyright (C) 2006 Mikael Berthe <bmikael@lists.lilotux.net> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or (at |
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* your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <ctype.h> |
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#include <glib.h> |
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#include "settings.h" |
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#include "logprint.h" |
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#include "utils.h" |
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#define DEFAULT_LANG "en" |
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// get_lang() |
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// Return the language code string (a 2-letters string). |
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static const char *get_lang(void) { |
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static const char *lang_str = DEFAULT_LANG; |
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#ifdef DATA_DIR |
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static char lang[3]; |
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const char *opt_l; |
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opt_l = settings_opt_get("lang"); |
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if (opt_l && strlen(opt_l) == 2 && isalpha(opt_l[0]) && isalpha(opt_l[1])) { |
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strncpy(lang, opt_l, sizeof(lang)); |
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mc_strtolower(lang); |
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lang_str = lang; |
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} |
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#endif /* DATA_DIR */ |
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return lang_str; |
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} |
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// help_process(string) |
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// Display help about the "string" command. |
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// If string is null, display general help. |
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// Return 0 in case of success. |
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int help_process(char *string) |
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{ |
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#ifndef DATA_DIR |
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scr_LogPrint(LPRINT_NORMAL, "Help isn't available."); |
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return -1; |
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#else |
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const char *lang; |
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FILE *fp; |
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char *helpfiles_dir, *filename; |
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char *data; |
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const int datasize = 4096; |
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char *p; |
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// Check string is ok |
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for (p = string; p && *p; p++) { |
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if (!isalnum(*p) && *p != '_' && *p != '-') { |
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scr_LogPrint(LPRINT_NORMAL, "Cannot find help (invalid keyword)."); |
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return 1; |
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} |
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} |
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// Look for help file |
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lang = get_lang(); |
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helpfiles_dir = g_strdup_printf("%s/mcabber/help", DATA_DIR); |
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if (string && *string) { |
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p = g_strdup(string); |
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mc_strtolower(p); |
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filename = g_strdup_printf("%s/%s/hlp_%s.txt", helpfiles_dir, lang, p); |
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g_free(p); |
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} else |
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filename = g_strdup_printf("%s/%s/hlp.txt", helpfiles_dir, lang); |
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fp = fopen(filename, "r"); |
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g_free(filename); |
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g_free(helpfiles_dir); |
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if (!fp) { |
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scr_LogPrint(LPRINT_NORMAL, "No help found."); |
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return -1; |
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} |
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data = g_new(char, datasize); |
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while (!feof(fp)) { |
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if (fgets(data, datasize, fp) == NULL) break; |
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// Strip trailing newline |
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for (p = data; *p; p++) ; |
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if (p > data) |
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p--; |
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if (*p == '\n' || *p == '\r') |
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*p = '\0'; |
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// Displaty the help line |
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scr_LogPrint(LPRINT_NORMAL, "%s", data); |
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} |
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fclose(fp); |
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g_free(data); |
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return 0; |
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#endif /* DATA_DIR */ |
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} |
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/* vim: set expandtab cindent cinoptions=>2\:2(0: For Vim users... */ |