StarDict TUI and GUI
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/*
* A tool to query multiple dictionaries for the specified word
*
* Intended for use in IRC bots and similar silly things---words go in,
* one per each line, and entries come out, one dictionary at a time,
* finalised with an empty line. Newlines are escaped with `\n',
* backslashes with `\\'.
*
* So far only the `m', `g`, and `x` fields are supported, as in sdtui.
*
* Copyright (c) 2013 - 2021, Přemysl Eric Janouch <p@janouch.name>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <glib.h>
#include <gio/gio.h>
#include <pango/pango.h>
#include "stardict.h"
#include "stardict-private.h"
#include "generator.h"
#include "utils.h"
// --- Output formatting -------------------------------------------------------
/// Transform Pango attributes to in-line formatting sequences (non-reentrant)
typedef const gchar *(*FormatterFunc) (PangoAttrIterator *);
static const gchar *
pango_attrs_ignore (G_GNUC_UNUSED PangoAttrIterator *iterator)
{
return "";
}
static const gchar *
pango_attrs_to_irc (PangoAttrIterator *iterator)
{
static gchar buf[5];
gchar *p = buf;
*p++ = 0x0f;
if (!iterator)
goto reset_formatting;
PangoAttrInt *attr = NULL;
if ((attr = (PangoAttrInt *) pango_attr_iterator_get (iterator,
PANGO_ATTR_WEIGHT)) && attr->value >= PANGO_WEIGHT_BOLD)
*p++ = 0x02;
if ((attr = (PangoAttrInt *) pango_attr_iterator_get (iterator,
PANGO_ATTR_UNDERLINE)) && attr->value == PANGO_UNDERLINE_SINGLE)
*p++ = 0x1f;
if ((attr = (PangoAttrInt *) pango_attr_iterator_get (iterator,
PANGO_ATTR_STYLE)) && attr->value == PANGO_STYLE_ITALIC)
*p++ = 0x1d;
reset_formatting:
*p++ = 0;
return buf;
}
static const gchar *
pango_attrs_to_ansi (PangoAttrIterator *iterator)
{
static gchar buf[16];
g_strlcpy (buf, "\x1b[0", sizeof buf);
if (!iterator)
goto reset_formatting;
PangoAttrInt *attr = NULL;
if ((attr = (PangoAttrInt *) pango_attr_iterator_get (iterator,
PANGO_ATTR_WEIGHT)) && attr->value >= PANGO_WEIGHT_BOLD)
g_strlcat (buf, ";1", sizeof buf);
if ((attr = (PangoAttrInt *) pango_attr_iterator_get (iterator,
PANGO_ATTR_UNDERLINE)) && attr->value == PANGO_UNDERLINE_SINGLE)
g_strlcat (buf, ";4", sizeof buf);
if ((attr = (PangoAttrInt *) pango_attr_iterator_get (iterator,
PANGO_ATTR_STYLE)) && attr->value == PANGO_STYLE_ITALIC)
g_strlcat (buf, ";3", sizeof buf);
reset_formatting:
g_strlcat (buf, "m", sizeof buf);
return buf;
}
static gchar *
pango_to_output_text (const gchar *markup, FormatterFunc formatter)
{
// This function skips leading whitespace, but it's the canonical one
gchar *text = NULL;
PangoAttrList *attrs = NULL;
if (!pango_parse_markup (markup, -1, 0, &attrs, &text, NULL, NULL))
return g_strdup_printf ("<%s>", ("error in entry"));
PangoAttrIterator *iterator = pango_attr_list_get_iterator (attrs);
GString *result = g_string_new ("");
do
{
gint start = 0, end = 0;
pango_attr_iterator_range (iterator, &start, &end);
if (end == G_MAXINT)
end = strlen (text);
g_string_append (result, formatter (iterator));
g_string_append_len (result, text + start, end - start);
}
while (pango_attr_iterator_next (iterator));
g_string_append (result, formatter (NULL));
g_free (text);
pango_attr_iterator_destroy (iterator);
pango_attr_list_unref (attrs);
return g_string_free (result, FALSE);
}
static gchar *
field_to_output_text (const StardictEntryField *field, FormatterFunc formatter)
{
const gchar *definition = field->data;
if (field->type == STARDICT_FIELD_MEANING)
return g_strdup (definition);
if (field->type == STARDICT_FIELD_PANGO)
return pango_to_output_text (definition, formatter);
if (field->type == STARDICT_FIELD_XDXF)
{
gchar *markup = xdxf_to_pango_markup_with_reduced_effort (definition);
gchar *result = pango_to_output_text (markup, formatter);
g_free (markup);
return result;
}
return NULL;
}
// --- Main --------------------------------------------------------------------
static guint
count_equal_chars (const gchar *a, const gchar *b)
{
guint count = 0;
while (*a && *b)
if (*a++ == *b++)
count++;
return count;
}
static void
do_dictionary (StardictDict *dict, const gchar *word, FormatterFunc formatter)
{
gboolean found;
StardictIterator *iter = stardict_dict_search (dict, word, &found);
if (!found)
goto out;
// Default Stardict ordering is ASCII case-insensitive,
// which may be further exacerbated by our own collation feature.
// Try to find a better matching entry:
gint64 best_offset = stardict_iterator_get_offset (iter);
guint best_score = count_equal_chars
(stardict_iterator_get_word (iter), word);
while (TRUE)
{
stardict_iterator_next (iter);
if (!stardict_iterator_is_valid (iter))
break;
const gchar *iter_word = stardict_iterator_get_word (iter);
if (g_ascii_strcasecmp (iter_word, word))
break;
guint score = count_equal_chars (iter_word, word);
if (score > best_score)
{
best_offset = stardict_iterator_get_offset (iter);
best_score = score;
}
}
stardict_iterator_set_offset (iter, best_offset, FALSE);
StardictEntry *entry = stardict_iterator_get_entry (iter);
StardictInfo *info = stardict_dict_get_info (dict);
const GList *list = stardict_entry_get_fields (entry);
for (; list; list = list->next)
{
StardictEntryField *field = list->data;
gchar *definitions = field_to_output_text (field, formatter);
if (!definitions)
continue;
printf ("%s\t", info->book_name);
for (const gchar *p = definitions; *p; p++)
{
if (*p == '\\')
printf ("\\\\");
else if (*p == '\n')
printf ("\\n");
else
putchar (*p);
}
putchar ('\n');
g_free (definitions);
}
g_object_unref (entry);
out:
g_object_unref (iter);
}
static FormatterFunc
parse_options (int *argc, char ***argv)
{
GError *error = NULL;
GOptionContext *ctx = g_option_context_new
("DICTIONARY.ifo... - query multiple dictionaries");
gboolean format_with_ansi = FALSE;
gboolean format_with_irc = FALSE;
GOptionEntry entries[] =
{
{ "ansi", 'a', 0, G_OPTION_ARG_NONE, &format_with_ansi,
"Format with ANSI sequences", NULL },
{ "irc", 'i', 0, G_OPTION_ARG_NONE, &format_with_irc,
"Format with IRC codes", NULL },
{ }
};
g_option_context_add_main_entries (ctx, entries, NULL);
if (!g_option_context_parse (ctx, argc, argv, &error))
{
g_printerr ("Error: option parsing failed: %s\n", error->message);
exit (EXIT_FAILURE);
}
if (*argc < 2)
{
g_printerr ("%s\n", g_option_context_get_help (ctx, TRUE, NULL));
exit (EXIT_FAILURE);
}
g_option_context_free (ctx);
if (format_with_ansi)
return pango_attrs_to_ansi;
if (format_with_irc)
return pango_attrs_to_irc;
return pango_attrs_ignore;
}
int
main (int argc, char *argv[])
{
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
if (glib_check_version (2, 36, 0))
g_type_init ();
G_GNUC_END_IGNORE_DEPRECATIONS
FormatterFunc formatter = parse_options (&argc, &argv);
guint n_dicts = argc - 1;
StardictDict **dicts = g_alloca (sizeof *dicts * n_dicts);
guint i;
for (i = 1; i <= n_dicts; i++)
{
GError *error = NULL;
dicts[i - 1] = stardict_dict_new (argv[i], &error);
if (error)
{
g_printerr ("Error: opening dictionary `%s' failed: %s\n",
argv[i], error->message);
exit (EXIT_FAILURE);
}
}
gint c;
do
{
GString *s = g_string_new (NULL);
while ((c = getchar ()) != EOF && c != '\n')
if (c != '\r')
g_string_append_c (s, c);
if (s->len)
for (i = 0; i < n_dicts; i++)
do_dictionary (dicts[i], s->str, formatter);
printf ("\n");
fflush (NULL);
g_string_free (s, TRUE);
}
while (c != EOF);
for (i = 0; i < n_dicts; i++)
g_object_unref (dicts[i]);
return 0;
}