Allow loading multiple dictionaries
They can also be specified in the configuration. They can be switched between using Alt+<number>.
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a063328ac8
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GPG Key ID:
B715679E3A361BE6
230
src/sdtui.c
230
src/sdtui.c
@ -30,11 +30,13 @@
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#include <gio/gio.h>
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#include <pango/pango.h>
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#include <glib/gi18n.h>
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#include <glib/gstdio.h>
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#include <unistd.h>
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#include <poll.h>
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#include <errno.h>
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#include <signal.h>
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#include <pwd.h>
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#include <termo.h> // input
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#include <ncurses.h> // output
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@ -76,6 +78,79 @@ get_xdg_config_dirs (void)
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return (gchar **) g_ptr_array_free (paths, FALSE);
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}
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static gchar *
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resolve_relative_filename_generic
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(gchar **paths, const gchar *tail, const gchar *filename)
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{
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for (; *paths; paths++)
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{
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// As per XDG spec, relative paths are ignored
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if (**paths != '/')
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continue;
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gchar *file = g_build_filename (*paths, tail, filename, NULL);
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GStatBuf st;
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if (!g_stat (file, &st))
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return file;
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g_free (file);
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}
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return NULL;
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}
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static gchar *
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resolve_relative_config_filename (const gchar *filename)
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{
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gchar **paths = get_xdg_config_dirs ();
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gchar *result = resolve_relative_filename_generic
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(paths, PROJECT_NAME, filename);
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g_strfreev (paths);
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return result;
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}
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static gchar *
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try_expand_tilde (const gchar *filename)
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{
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size_t until_slash = strcspn (filename, "/");
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if (!until_slash)
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return g_build_filename (g_get_home_dir () ?: "", filename, NULL);
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long buf_len = sysconf (_SC_GETPW_R_SIZE_MAX);
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if (buf_len < 0)
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buf_len = 1024;
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struct passwd pwd, *success = NULL;
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gchar *user = g_strndup (filename, until_slash);
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gchar *buf = g_malloc (buf_len);
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while (getpwnam_r (user, &pwd, buf, buf_len, &success) == ERANGE)
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buf = g_realloc (buf, buf_len <<= 1);
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g_free (user);
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gchar *result = NULL;
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if (success)
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result = g_strdup_printf ("%s%s", pwd.pw_dir, filename + until_slash);
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g_free (buf);
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return result;
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}
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static gchar *
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resolve_filename (const gchar *filename, gchar *(*relative_cb) (const char *))
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{
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// Absolute path is absolute
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if (*filename == '/')
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return g_strdup (filename);
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// We don't want to use wordexp() for this as it may execute /bin/sh
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if (*filename == '~')
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{
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// Paths to home directories ought to be absolute
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char *expanded = try_expand_tilde (filename + 1);
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if (expanded)
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return expanded;
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g_debug ("failed to expand the home directory in `%s'", filename);
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}
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return relative_cb (filename);
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}
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// --- Application -------------------------------------------------------------
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#define ATTRIBUTE_TABLE(XX) \
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@ -103,6 +178,8 @@ struct attrs
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/// Data relating to one entry within the dictionary.
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typedef struct view_entry ViewEntry;
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/// Data relating to a dictionary file.
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typedef struct dictionary Dictionary;
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/// Encloses application data.
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typedef struct application Application;
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/// Application options.
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@ -115,6 +192,14 @@ struct view_entry
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gsize definitions_length; ///< Length of the @a definitions array
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};
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struct dictionary
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{
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gchar * name; ///< Visible identifier
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gsize name_width; ///< Visible width of the name
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gchar * filename; ///< Path to the dictionary
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StardictDict * dict; ///< Dictionary
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};
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struct application
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{
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GMainLoop * loop; ///< Main loop
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@ -123,6 +208,8 @@ struct application
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GIConv ucs4_to_locale; ///< UTF-32 -> locale conversion
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gboolean locale_is_utf8; ///< The locale is Unicode
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GArray * dictionaries; ///< All loaded dictionaries
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StardictDict * dict; ///< The current dictionary
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guint show_help : 1; ///< Whether help can be shown
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guint center_search : 1; ///< Whether to center the search
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@ -157,6 +244,8 @@ struct app_options
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gint selection_watcher; ///< Interval in milliseconds, or -1
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};
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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/// Splits the entry and adds it to a pointer array.
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static void
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view_entry_split_add (GPtrArray *out, const gchar *text)
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@ -234,6 +323,39 @@ view_entry_free (ViewEntry *ve)
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g_slice_free1 (sizeof *ve, ve);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static gboolean
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dictionary_load (Dictionary *self, GError **e)
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{
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if (!(self->dict = stardict_dict_new (self->filename, e)))
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return FALSE;
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if (!self->name)
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{
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self->name = g_strdup (stardict_info_get_book_name
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(stardict_dict_get_info (self->dict)));
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}
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gunichar *ucs4 = g_utf8_to_ucs4_fast (self->name, -1, NULL);
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for (gunichar *it = ucs4; *it; it++)
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self->name_width += unichar_width (*it);
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g_free (ucs4);
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return TRUE;
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}
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static void
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dictionary_free (Dictionary *self)
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{
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g_free (self->name);
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g_free (self->filename);
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if (self->dict)
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g_object_unref (self->dict);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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/// Reload view items.
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static void
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app_reload_view (Application *self)
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@ -329,6 +451,30 @@ app_load_config_values (Application *self, GKeyFile *kf)
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app_load_color (self, kf, config, ATTRIBUTE_ ## name);
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ATTRIBUTE_TABLE (XX)
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#undef XX
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const gchar *dictionaries = "Dictionaries";
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gchar **names = g_key_file_get_keys (kf, dictionaries, NULL, NULL);
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if (!names)
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return;
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for (gchar **it = names; *it; it++)
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{
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gchar *path = g_key_file_get_string (kf, dictionaries, *it, NULL);
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if (!path)
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continue;
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// Try to resolve relative paths and expand tildes
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gchar *resolved = resolve_filename
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(path, resolve_relative_config_filename);
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if (resolved)
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g_free (path);
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else
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resolved = path;
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Dictionary dict = { .name = g_strdup (*it), .filename = resolved };
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g_array_append_val (self->dictionaries, dict);
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}
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g_strfreev (names);
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}
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static void
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@ -368,9 +514,10 @@ app_init_attrs (Application *self)
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ATTRIBUTE_TABLE (XX)
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#undef XX
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}
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/// Initialize the application core.
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static void
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app_init (Application *self, AppOptions *options, const gchar *filename)
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app_init (Application *self, AppOptions *options, char **filenames)
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{
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self->loop = NULL;
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self->selection_interval = options->selection_watcher;
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@ -392,14 +539,6 @@ app_init (Application *self, AppOptions *options, const gchar *filename)
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self->tk = NULL;
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self->tk_timer = 0;
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GError *error = NULL;
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self->dict = stardict_dict_new (filename, &error);
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if (!self->dict)
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{
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g_printerr ("%s: %s\n", _("Error loading dictionary"), error->message);
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exit (EXIT_FAILURE);
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}
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self->show_help = TRUE;
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self->center_search = TRUE;
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self->underline_last = TRUE;
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@ -427,15 +566,47 @@ app_init (Application *self, AppOptions *options, const gchar *filename)
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self->ucs4_to_locale = g_iconv_open (charset, "UTF-32BE");
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#endif // G_BYTE_ORDER != G_LITTLE_ENDIAN
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app_reload_view (self);
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app_init_attrs (self);
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self->dictionaries = g_array_new (FALSE, TRUE, sizeof (Dictionary));
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g_array_set_clear_func
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(self->dictionaries, (GDestroyNotify) dictionary_free);
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GError *error = NULL;
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app_load_config (self, &error);
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if (error)
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{
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g_printerr ("%s: %s\n", _("Cannot load configuration"), error->message);
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exit (EXIT_FAILURE);
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}
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// Dictionaries given on the command line override the configuration
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if (*filenames)
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{
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g_array_set_size (self->dictionaries, 0);
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while (*filenames)
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{
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Dictionary dict = { .filename = g_strdup (*filenames++) };
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g_array_append_val (self->dictionaries, dict);
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}
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}
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for (guint i = 0; i < self->dictionaries->len && dictionary_load
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(&g_array_index (self->dictionaries, Dictionary, i), &error); i++)
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;
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if (error)
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{
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g_printerr ("%s: %s\n", _("Error loading dictionary"), error->message);
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exit (EXIT_FAILURE);
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}
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if (!self->dictionaries->len)
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{
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g_printerr ("%s\n", _("No dictionaries found either in "
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"the configuration or on the command line"));
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exit (EXIT_FAILURE);
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}
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self->dict = g_array_index (self->dictionaries, Dictionary, 0).dict;
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app_reload_view (self);
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}
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static void
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@ -487,10 +658,10 @@ app_destroy (Application *self)
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g_source_remove (self->selection_timer);
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g_free (self->selection_contents);
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g_object_unref (self->dict);
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g_ptr_array_free (self->entries, TRUE);
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g_free (self->search_label);
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g_array_free (self->input, TRUE);
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g_array_free (self->dictionaries, TRUE);
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g_iconv_close (self->ucs4_to_locale);
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}
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@ -1081,6 +1252,20 @@ app_search_for_entry (Application *self)
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app_redraw_view (self);
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}
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/// Switch to a different dictionary by number.
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static gboolean
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app_goto_dictionary (Application *self, guint n)
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{
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if (n >= self->dictionaries->len)
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return FALSE;
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Dictionary *dict = &g_array_index (self->dictionaries, Dictionary, n);
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self->dict = dict->dict;
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app_search_for_entry (self);
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app_redraw_top (self);
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return TRUE;
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}
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#define SAVE_CURSOR \
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int last_x, last_y; \
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getyx (stdscr, last_y, last_x);
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@ -1422,6 +1607,14 @@ app_process_alt_key (Application *self, termo_key_t *event)
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{
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if (event->code.codepoint == 'c')
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self->center_search = !self->center_search;
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if (event->code.codepoint >= '0'
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&& event->code.codepoint <= '9')
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{
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gint n = event->code.codepoint - '0';
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if (!app_goto_dictionary (self, (n == 0 ? 10 : n) - 1))
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beep ();
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}
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return TRUE;
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}
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@ -1797,7 +1990,7 @@ G_GNUC_END_IGNORE_DEPRECATIONS
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GError *error = NULL;
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GOptionContext *ctx = g_option_context_new
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(N_("dictionary.ifo - StarDict terminal UI"));
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(N_("[dictionary.ifo]... - StarDict terminal UI"));
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GOptionGroup *group = g_option_group_new ("", "", "", &options, NULL);
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g_option_group_add_entries (group, entries);
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g_option_group_set_translation_domain (group, GETTEXT_PACKAGE);
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@ -1809,6 +2002,7 @@ G_GNUC_END_IGNORE_DEPRECATIONS
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error->message);
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exit (EXIT_FAILURE);
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}
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g_option_context_free (ctx);
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if (options.show_version)
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{
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@ -1816,18 +2010,8 @@ G_GNUC_END_IGNORE_DEPRECATIONS
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exit (EXIT_SUCCESS);
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}
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if (argc != 2)
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{
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gchar *help = g_option_context_get_help (ctx, TRUE, FALSE);
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g_printerr ("%s", help);
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g_free (help);
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exit (EXIT_FAILURE);
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}
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g_option_context_free (ctx);
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Application app;
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app_init (&app, &options, argv[1]);
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app_init (&app, &options, argv + 1);
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app_init_terminal (&app);
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app_redraw (&app);
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