annotate mcabber/src/settings.c @ 341:dea407d53fe6

Improve configuration file reading * Move cfg_file() to settings.c, cfg_read_file() * Optimize the function * Remove parsecfg.[ch]
author Mikael Berthe <mikael@lilotux.net>
date Tue, 19 Jul 2005 17:54:03 +0100
parents 3a25be278864
children d8f147d6e872
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1 /*
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2 * settings.c -- Configuration stuff
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3 *
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4 * Copyright (C) 2005 Mikael Berthe <bmikael@lists.lilotux.net>
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5 *
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or (at
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9 * your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program; if not, write to the Free Software
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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19 * USA
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20 */
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21
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22 #include <strings.h>
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23 #include <stdlib.h>
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24 #include <ctype.h>
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25
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26 #include "settings.h"
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27 #include "commands.h"
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28 #include "utils.h"
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29 #include "screen.h"
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30
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31 static GSList *option;
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32 static GSList *alias;
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33 static GSList *binding;
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34
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35
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36 typedef struct {
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37 gchar *name;
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38 gchar *value;
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39 } T_setting;
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40
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41 static inline GSList **get_list_ptr(guint type)
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42 {
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43 if (type == SETTINGS_TYPE_OPTION) return &option;
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44 else if (type == SETTINGS_TYPE_ALIAS) return &alias;
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45 else if (type == SETTINGS_TYPE_BINDING) return &binding;
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46 return NULL;
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47 }
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48
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49 // Return a pointer to the node with the requested key, or NULL if none found
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50 static GSList *settings_find(GSList *list, const gchar *key)
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51 {
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52 GSList *ptr;
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53
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54 if (!list) return NULL;
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55
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56 for (ptr = list ; ptr; ptr = g_slist_next(ptr))
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57 if (!strcasecmp(key, ((T_setting*)ptr->data)->name))
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58 break;
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59
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60 return ptr;
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61 }
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62
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63 /* -- */
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64
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65 // cfg_read_file(filename)
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66 // Read and parse config file "filename". If filename is NULL,
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67 // try to open the configuration file at the default locations.
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68 //
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69 int cfg_read_file(char *filename)
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70 {
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71 FILE *fp;
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72 char *buf;
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73 char *line, *eol;
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74 unsigned int ln = 0;
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75 int err = 0;
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76
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77 if (!filename) {
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78 // Use default config file locations
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79 char *home = getenv("HOME");
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80 if (!home) {
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81 ut_WriteLog("Can't find home dir!\n");
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82 fprintf(stderr, "Can't find home dir!\n");
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83 return -1;
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84 }
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85 filename = g_new(char, strlen(home)+24);
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86 sprintf(filename, "%s/.mcabber/mcabberrc", home);
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87 if ((fp = fopen(filename, "r")) == NULL) {
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88 // 2nd try...
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89 sprintf(filename, "%s/.mcabberrc", home);
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90 if ((fp = fopen(filename, "r")) == NULL) {
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91 fprintf(stderr, "Cannot open config file!\n");
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92 return -1;
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93 }
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94 }
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95 g_free(filename);
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96 }
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97 else if ((fp = fopen(filename, "r")) == NULL) {
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98 perror("fopen (cfg_file())");
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99 return -1;
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100 }
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101
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102 buf = g_new(char, 512);
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103
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104 while (fgets(buf+1, 511, fp) != NULL) {
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105 // The first char is reserved to add a '/', to make a command line
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106 line = buf+1;
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107 ln++;
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108
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109 // Strip leading spaces
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110 while (isspace(*line))
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111 line++;
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112
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113 // Make eol point to the last char of the line
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114 for (eol = line ; *eol ; eol++)
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115 ;
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116 if (eol > line)
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117 eol--;
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118
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119 // Strip trailing spaces
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120 while (eol > line && isspace(*eol))
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121 *eol-- = 0;
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122
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123 // Ignore empty lines and comments
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124 if ((*line == '\n') || (*line == '\0') || (*line == '#'))
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125 continue;
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126
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127 if ((strchr(line, '=') != NULL)) {
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128 // Only accept the set, alias and bind commands
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129 if (strncmp(line, "set ", 4) &&
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130 strncmp(line, "bind ", 5) &&
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131 strncmp(line, "alias ", 6)) {
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132 scr_LogPrint("Error in configuration file (l. %d): bad command", ln);
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133 err++;
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134 continue;
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135 }
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136 *(--line) = '/'; // Set the leading '/' to build a command line
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137 process_command(line); // Process the command
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138 } else {
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139 scr_LogPrint("Error in configuration file (l. %d): no assignment", ln);
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140 err++;
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141 }
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142 }
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143 g_free(buf);
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144 fclose(fp);
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145 return err;
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146 }
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147
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148 // parse_assigment(assignment, pkey, pval)
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149 // Read assignment and split it to key, value
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150 //
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151 // If this is an assignment, the function will return TRUE and
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152 // set *pkey and *pval (*pval is set to NULL if value field is empty).
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153 //
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154 // If this isn't a assignment (no = char), the function will set *pval
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155 // to NULL and return FALSE.
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156 //
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157 // The called should g_free() *pkey and *pval (if not NULL) after use.
281
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158 guint parse_assigment(gchar *assignment, const gchar **pkey, const gchar **pval)
280
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159 {
293
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160 char *key, *val, *t, *p;
280
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161
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162 *pkey = *pval = NULL;
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163
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164 key = assignment;
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165 // Remove leading spaces in option name
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166 while ((!isalnum(*key)) && (*key != '=') && *key) {
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167 //if (!isblank(*key))
293
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168 // scr_LogPrint("Error in assignment parsing!");
280
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169 key++;
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170 }
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171 if (!*key) return FALSE; // Empty assignment
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172
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173 if (*key == '=') {
293
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174 //scr_LogPrint("Cannot parse assignment!");
280
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175 return FALSE;
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176 }
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177 // Ok, key points to the option name
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178
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179 for (val = key+1 ; *val && (*val != '=') ; val++)
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180 if (!isalnum(*val) && !isblank(*val) && (*val != '_') && (*val != '-')) {
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181 // Key should only have alnum chars...
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182 //scr_LogPrint("Error in assignment parsing!");
280
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183 return FALSE;
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184 }
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185 // Remove trailing spaces in option name:
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186 for (t = val-1 ; t > key && isblank(*t) ; t--)
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187 ;
293
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188 // Check for embedded whitespace characters
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189 for (p = key; p < t; p++) {
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190 if (isblank(*p)) {
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191 //scr_LogPrint("Error in assignment parsing!"
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192 // " (Name should not contain space chars)");
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193 return FALSE;
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194 }
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195 }
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196
280
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197 *pkey = g_strndup(key, t+1-key);
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198
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199 if (!*val) return FALSE; // Not an assignment
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200
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201 // Remove leading and trailing spaces in option value:
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202 for (val++; *val && isblank(*val) ; val++) ;
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203 for (t = val ; *t ; t++) ;
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204 for (t-- ; t >= val && isblank(*t) ; t--) ;
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205
282
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206 if (t < val) return TRUE; // no value (variable reset for example)
280
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207
337
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208 // If the value begins and ends with quotes ("), these quotes are
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209 // removed and whitespace is not stripped
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210 if ((t>val) && (*val == '"' && *t == '"')) {
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211 val++;
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212 t--;
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213 }
280
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214 *pval = g_strndup(val, t+1-val);
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215 return TRUE;
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216 }
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217
281
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218 void settings_set(guint type, const gchar *key, const gchar *value)
279
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219 {
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220 GSList **plist;
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221 GSList *sptr;
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222 T_setting *setting;
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223
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224 plist = get_list_ptr(type);
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225 if (!plist) return;
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226
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227 sptr = settings_find(*plist, key);
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228 if (sptr) {
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229 // The setting has been found. We will update it or delete it.
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230 setting = (T_setting*)sptr->data;
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231 if (setting->value)
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232 g_free(setting->value);
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233 if (!value) {
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234 // Let's remove the setting
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235 g_free(setting->name);
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236 *plist = g_slist_delete_link(*plist, sptr);
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237 } else {
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238 // Let's update the setting
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239 setting->value = g_strdup(value);
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240 }
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241 } else if (value) {
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242 setting = g_new(T_setting, 1);
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243 setting->name = g_strdup(key);
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244 setting->value = g_strdup(value);
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245 *plist = g_slist_append(*plist, setting);
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246 }
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247 }
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248
281
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249 void settings_del(guint type, const gchar *key)
279
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250 {
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251 settings_set(type, key, NULL);
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252 }
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253
281
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254 const gchar *settings_get(guint type, const gchar *key)
279
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255 {
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256 GSList **plist;
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257 GSList *sptr;
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258 T_setting *setting;
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259
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260 plist = get_list_ptr(type);
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261 sptr = settings_find(*plist, key);
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262 if (!sptr) return NULL;
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263
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264 setting = (T_setting*)sptr->data;
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265 return setting->value;
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266 }
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267
281
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268 int settings_get_int(guint type, const gchar *key)
279
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269 {
281
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270 const gchar *setval = settings_get(type, key);
279
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271
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272 if (setval) return atoi(setval);
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273 return 0;
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274 }
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275
288
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276 // Return the command the key is bound to, or NULL.
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277 const gchar *isbound(int key)
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278 {
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279 gchar asciikey[16];
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280 g_snprintf(asciikey, 15, "%d", key);
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281 return settings_get(SETTINGS_TYPE_BINDING, asciikey);
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282 }
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283
294
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284 // settings_get_status_msg(status)
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285 // Return a string with the current status message:
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286 // - if there is a user-defined message ("message" option),
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287 // return this message
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288 // - if there is a user-defined message for the given status (and no
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289 // generic user message), it is returned
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diff changeset
290 // - if no user-defined message is found, return the mcabber default msg
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291 // - if there is no default (offline, invisible), return an empty string
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292 const gchar *settings_get_status_msg(enum imstatus status)
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diff changeset
293 {
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294 const gchar *rstatus = settings_opt_get("message");
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295
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diff changeset
296 if (rstatus) return rstatus;
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297
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diff changeset
298 switch(status) {
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diff changeset
299 case available:
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diff changeset
300 if ((rstatus = settings_opt_get("message_avail")) == NULL)
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diff changeset
301 rstatus = MSG_AVAIL;
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diff changeset
302 break;
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diff changeset
303
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diff changeset
304 case freeforchat:
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305 if ((rstatus = settings_opt_get("message_free")) == NULL)
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diff changeset
306 rstatus = MSG_FREE;
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307 break;
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308
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309 case dontdisturb:
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310 if ((rstatus = settings_opt_get("message_dnd")) == NULL)
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diff changeset
311 rstatus = MSG_DND;
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312 break;
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313
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diff changeset
314 case notavail:
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315 if ((rstatus = settings_opt_get("message_notavail")) == NULL)
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diff changeset
316 rstatus = MSG_NOTAVAIL;
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317 break;
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318
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319 case away:
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320 if ((rstatus = settings_opt_get("message_away")) == NULL)
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diff changeset
321 rstatus = MSG_AWAY;
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322 break;
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323
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324 default:
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325 rstatus = "";
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326 }
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327 return rstatus;
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diff changeset
328 }