lib/filehighlight/ini-file-read.c

   1 /*
   2    File highlight plugin.
   3    Reading and parse rules from ini-files
   4
   5    Copyright (C) 2009 The Free Software Foundation, Inc.
   6
   7    Written by:
   8    Slava Zanko <slavazanko@gmail.com>, 2009.
   9
  10    This file is part of the Midnight Commander.
  11
  12    The Midnight Commander is free software; you can redistribute it
  13    and/or modify it under the terms of the GNU General Public License as
  14    published by the Free Software Foundation; either version 2 of the
  15    License, or (at your option) any later version.
  16
  17    The Midnight Commander is distributed in the hope that it will be
  18    useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  19    of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20    General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program; if not, write to the Free Software
  24    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  25    MA 02110-1301, USA.
  26  */
  27
  28 #include <config.h>
  29 #include <string.h>
  30
  31 #include "../src/global.h"
  32 #include "../src/main.h"
  33 #include "../src/fileloc.h"
  34 #include "../src/strescape.h"
  35 #include "../src/skin/skin.h"
  36 #include "../../src/util.h"
  37 #include "fhl.h"
  38 #include "internal.h"
  39
  40 /*** global variables ****************************************************************************/
  41
  42 extern mc_skin_t mc_skin__default;
  43
  44 /*** file scope macro definitions ****************************************************************/
  45
  46 /*** file scope type declarations ****************************************************************/
  47
  48 /*** file scope variables ************************************************************************/
  49
  50 /*** file scope functions ************************************************************************/
  51 /* --------------------------------------------------------------------------------------------- */
  52
  53 static void
  54 mc_fhl_parse_fill_color_info (mc_fhl_filter_t * mc_filter, mc_fhl_t * fhl, const gchar * group_name)
  55 {
  56     (void) fhl;
  57     mc_filter->color_pair_index = mc_skin_color_get ("filehighlight", group_name);
  58 }
  59
  60 /* --------------------------------------------------------------------------------------------- */
  61
  62 static gboolean
  63 mc_fhl_parse_get_file_type_id (mc_fhl_t * fhl, const gchar * group_name)
  64 {
  65     mc_fhl_filter_t *mc_filter;
  66
  67     const gchar *types[] = {
  68         "FILE", "FILE_EXE",
  69         "DIR", "LINK_DIR",
  70         "LINK", "HARDLINK", "SYMLINK",
  71         "STALE_LINK",
  72         "DEVICE", "DEVICE_BLOCK", "DEVICE_CHAR",
  73         "SPECIAL", "SPECIAL_SOCKET", "SPECIAL_FIFO", "SPECIAL_DOOR",
  74         NULL
  75     };
  76     int i;
  77     gchar *param_type = mc_config_get_string (fhl->config, group_name, "type", "");
  78
  79     if (*param_type == '\0') {
  80         g_free (param_type);
  81         return FALSE;
  82     }
  83
  84     for (i = 0; types[i] != NULL; i++) {
  85         if (strcmp (types[i], param_type) == 0)
  86             break;
  87     }
  88     g_free (param_type);
  89     if (types[i] == NULL)
  90         return FALSE;
  91
  92     mc_filter = g_new0 (mc_fhl_filter_t, 1);
  93     mc_filter->type = MC_FLHGH_T_FTYPE;
  94     mc_filter->file_type = (mc_flhgh_ftype_type) i;
  95     mc_fhl_parse_fill_color_info (mc_filter, fhl, group_name);
  96
  97     g_ptr_array_add (fhl->filters, (gpointer) mc_filter);
  98     return TRUE;
  99 }
 100
 101 /* --------------------------------------------------------------------------------------------- */
 102
 103 static gboolean
 104 mc_fhl_parse_get_regexp (mc_fhl_t * fhl, const gchar * group_name)
 105 {
 106     mc_fhl_filter_t *mc_filter;
 107     gchar *regexp = mc_config_get_string (fhl->config, group_name, "regexp", "");
 108
 109     if (*regexp == '\0') {
 110         g_free (regexp);
 111         return FALSE;
 112     }
 113
 114     mc_filter = g_new0 (mc_fhl_filter_t, 1);
 115     mc_filter->type = MC_FLHGH_T_FREGEXP;
 116     mc_filter->search_condition = mc_search_new (regexp, -1);
 117     mc_filter->search_condition->is_case_sentitive = TRUE;
 118     mc_filter->search_condition->search_type = MC_SEARCH_T_REGEX;
 119
 120     mc_fhl_parse_fill_color_info (mc_filter, fhl, group_name);
 121     g_ptr_array_add (fhl->filters, (gpointer) mc_filter);
 122     g_free (regexp);
 123     return TRUE;
 124
 125 }
 126
 127 /* --------------------------------------------------------------------------------------------- */
 128
 129 static gboolean
 130 mc_fhl_parse_get_extensions (mc_fhl_t * fhl, const gchar * group_name)
 131 {
 132     mc_fhl_filter_t *mc_filter;
 133     gchar **exts, **exts_orig;
 134     gchar *esc_ext;
 135     gsize exts_size;
 136     GString *buf = g_string_new ("");
 137
 138     exts_orig = exts =
 139         mc_config_get_string_list (fhl->config, group_name, "extensions", &exts_size);
 140
 141     if (exts_orig == NULL)
 142         return FALSE;
 143
 144     if (exts_orig[0] == NULL) {
 145         g_strfreev (exts_orig);
 146         return FALSE;
 147     }
 148
 149     while (*exts != NULL) {
 150         esc_ext = strutils_regex_escape (*exts);
 151         if (buf->len != 0)
 152             g_string_append_c (buf, '|');
 153         g_string_append (buf, esc_ext);
 154         g_free (esc_ext);
 155         exts++;
 156     }
 157     g_strfreev (exts_orig);
 158     esc_ext = g_string_free (buf, FALSE);
 159     buf = g_string_new (".*\\.(");
 160     g_string_append (buf, esc_ext);
 161     g_string_append (buf, ")$");
 162     g_free (esc_ext);
 163
 164     mc_filter = g_new0 (mc_fhl_filter_t, 1);
 165     mc_filter->type = MC_FLHGH_T_FREGEXP;
 166     mc_filter->search_condition = mc_search_new (buf->str, -1);
 167     mc_filter->search_condition->is_case_sentitive =
 168         mc_config_get_bool (fhl->config, group_name, "extensions_case", TRUE);
 169     mc_filter->search_condition->search_type = MC_SEARCH_T_REGEX;
 170
 171     mc_fhl_parse_fill_color_info (mc_filter, fhl, group_name);
 172     g_ptr_array_add (fhl->filters, (gpointer) mc_filter);
 173     g_string_free (buf, TRUE);
 174     return TRUE;
 175 }
 176
 177 /* --------------------------------------------------------------------------------------------- */
 178 /*** public functions ****************************************************************************/
 179 /* --------------------------------------------------------------------------------------------- */
 180
 181
 182 gboolean
 183 mc_fhl_read_ini_file (mc_fhl_t * fhl, const gchar * filename)
 184 {
 185     if (fhl == NULL || filename == NULL || !exist_file (filename))
 186         return FALSE;
 187
 188     if (fhl->config) {
 189
 190         if (!mc_config_read_file (fhl->config, filename))
 191             return FALSE;
 192
 193         return TRUE;
 194     }
 195
 196     fhl->config = mc_config_init (filename);
 197
 198     if (fhl->config == NULL)
 199         return FALSE;
 200
 201     return TRUE;
 202 }
 203
 204
 205 /* --------------------------------------------------------------------------------------------- */
 206
 207 gboolean
 208 mc_fhl_init_from_standart_files (mc_fhl_t * fhl)
 209 {
 210     gchar *name;
 211
 212     /* ${datadir}/mc/filehighlight.ini  */
 213     name = concat_dir_and_file (mc_home_alt, MC_FHL_INI_FILE);
 214     if (exist_file (name) && (!mc_fhl_read_ini_file (fhl, name))) {
 215         g_free (name);
 216         return FALSE;
 217     }
 218     g_free (name);
 219
 220     /* ${sysconfdir}/mc/filehighlight.ini  */
 221     name = concat_dir_and_file (mc_home, MC_FHL_INI_FILE);
 222     if (exist_file (name) && (!mc_fhl_read_ini_file (fhl, name))) {
 223         g_free (name);
 224         return FALSE;
 225     }
 226     g_free (name);
 227
 228     /* ~/.mc/filehighlight.ini */
 229     name = g_build_filename (home_dir, MC_USERCONF_DIR, MC_FHL_INI_FILE, NULL);
 230
 231     if (exist_file (name) && (!mc_fhl_read_ini_file (fhl, name))) {
 232         g_free (name);
 233         return FALSE;
 234     }
 235     g_free (name);
 236
 237     return TRUE;
 238 }
 239
 240 /* --------------------------------------------------------------------------------------------- */
 241
 242 gboolean
 243 mc_fhl_parse_ini_file (mc_fhl_t * fhl)
 244 {
 245     gchar **group_names, **orig_group_names;
 246
 247     mc_fhl_array_free (fhl);
 248     fhl->filters = g_ptr_array_new ();
 249
 250     orig_group_names = group_names = mc_config_get_groups (fhl->config, NULL);
 251
 252     if (group_names == NULL)
 253         return FALSE;
 254
 255     while (*group_names) {
 256
 257         if (mc_config_has_param (fhl->config, *group_names, "type")) {
 258             /* parse filetype filter */
 259             mc_fhl_parse_get_file_type_id (fhl, *group_names);
 260         }
 261         if (mc_config_has_param (fhl->config, *group_names, "regexp")) {
 262             /* parse regexp filter */
 263             mc_fhl_parse_get_regexp (fhl, *group_names);
 264         }
 265         if (mc_config_has_param (fhl->config, *group_names, "extensions")) {
 266             /* parse extensions filter */
 267             mc_fhl_parse_get_extensions (fhl, *group_names);
 268         }
 269         group_names++;
 270     }
 271
 272     g_strfreev (orig_group_names);
 273     return TRUE;
 274 }
 275
 276 /* --------------------------------------------------------------------------------------------- */