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/* text.simple-filters.c - Plugin code for various filters
*
* This program is part of Crank, a cryptanalysis tool
* Copyright (C) 2000 Matthew Russell
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License (LICENSE) for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "crank-interface.h"
/* Global data */
static int remove_numbers;
static int remove_punctuation;
static int remove_whitespace;
static int to_uppercase;
static int to_lowercase;
static int group_in_fives; /* Use cryptogram telegraph style:- fhsnm ojfwe sljfo ojjw llfaf....*/
static GtkWidget *checkbox_remove_numbers;
static GtkWidget *checkbox_remove_punctuation;
static GtkWidget *checkbox_remove_whitespace;
static GtkWidget *checkbox_to_uppercase;
static GtkWidget *checkbox_to_lowercase;
static GtkWidget *checkbox_group_in_fives;
/* Constants for the user interface controls */
#define REMOVE_NUMBERS 1
#define REMOVE_PUNCTUATION 2
#define REMOVE_WHITESPACE 3
#define TO_UPPERCASE 4
#define TO_LOWERCASE 5
#define GROUP_IN_FIVES 6
/* Function declares */
static GtkWidget *add_opt(char *txt, int type, GtkWidget *hbox);
static void cb_check_toggle(GtkWidget *widget, gpointer gdata);
/* Plugin Interface */
/* ---------------- */
const char name[] = "text.simple-filters";
const char version[] = VERSION;
const char author[] = "Matthew Russell";
const char description[] = "Various filters for changing case, stripping punctuation, numbers and whitespace, and grouping letters into fives.";
const int interface_version = 1;
const int plugin_type = PLUGIN_MODE;
const char menu_string[] = "/Text/Simple Filters";
int boot(void) {
remove_numbers = FALSE;
remove_punctuation = FALSE;
remove_whitespace = FALSE;
to_uppercase = FALSE;
to_lowercase = FALSE;
group_in_fives = FALSE;
return PLUGIN_BOOT_OK;
}
void init_plugin(void) {;}
void deactivate_plugin(void) {;}
GtkWidget *make_widget(char *text) {
GtkWidget *hbox;
hbox = gtk_hbox_new(5, FALSE);
checkbox_remove_numbers = add_opt("Remove numbers", REMOVE_NUMBERS, hbox);
checkbox_remove_punctuation = add_opt("Remove punctuation", REMOVE_PUNCTUATION,hbox);
checkbox_remove_whitespace = add_opt("Remove whitespace", REMOVE_WHITESPACE, hbox);
checkbox_to_uppercase = add_opt("To uppercase", TO_UPPERCASE, hbox);
checkbox_to_lowercase = add_opt("To lowercase", TO_LOWERCASE, hbox);
checkbox_group_in_fives = add_opt("Group in fives", GROUP_IN_FIVES, hbox);
return hbox;
}
char *transform(char *text) {
char *newtext,
c, /* From old string */
C; /* After case changes */
int i, position = 0, length = strlen(text);
newtext = malloc((sizeof(char) * (length + 1) * 6) / 5); /* The 6/5 is to accomodate the possible expansion of the string due to 'group in fives' */
for (i = 0; i < length; i++) {
c = text[i];
if (remove_numbers && isdigit(c))
continue;
if (remove_punctuation && ispunct(c))
continue;
if ((remove_whitespace || group_in_fives) && isspace(c))
continue;
if (to_uppercase)
C = toupper(c);
else if (to_lowercase)
C = tolower(c);
else
C = c;
newtext[position++] = C;
if (group_in_fives && !((1 + position) % 6))
newtext[position++] = ' ';
}
newtext[position] = '\0';
return newtext;
}
void reset(void) {
remove_numbers = FALSE;
remove_punctuation = FALSE;
remove_whitespace = FALSE;
to_uppercase = FALSE;
to_lowercase = FALSE;
group_in_fives = FALSE;
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbox_remove_numbers), remove_numbers);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbox_remove_whitespace), remove_whitespace);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbox_remove_punctuation), remove_punctuation);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbox_to_uppercase), to_uppercase);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbox_to_lowercase), to_lowercase);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbox_group_in_fives), group_in_fives);
}
/* Plugin implementation */
/* --------------------- */
/* Toggles the global preprocessing options */
static void check_toggle(int option_number) {
switch (option_number) {
case REMOVE_NUMBERS:
TOGGLE(remove_numbers); break;
case REMOVE_PUNCTUATION:
TOGGLE(remove_punctuation); break;
case REMOVE_WHITESPACE:
TOGGLE(remove_whitespace); break;
case TO_UPPERCASE:
TOGGLE(to_uppercase); break;
case TO_LOWERCASE:
TOGGLE(to_lowercase); break;
case GROUP_IN_FIVES:
TOGGLE(group_in_fives); break;
default:
g_warning("Unknown filter type in %s - %d\n", name, option_number); break;
}
display_text();
}
static GtkWidget *add_opt(char *txt, int type, GtkWidget *hbox) {
GtkWidget *opt;
opt = gtk_check_button_new_with_label(txt);
switch (type) {
case REMOVE_NUMBERS:
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(opt), remove_numbers); break;
case REMOVE_PUNCTUATION:
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(opt), remove_punctuation); break;
case REMOVE_WHITESPACE:
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(opt), remove_whitespace); break;
case TO_UPPERCASE:
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(opt), to_uppercase); break;
case TO_LOWERCASE:
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(opt), to_lowercase); break;
case GROUP_IN_FIVES:
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(opt), group_in_fives); break;
default:
g_warning("Unknown filter type in %s - %d\n", name, type); break;
}
gtk_box_pack_start(GTK_BOX(hbox), opt, TRUE, TRUE, 0);
gtk_signal_connect(GTK_OBJECT(opt), "toggled", cb_check_toggle, GINT_TO_POINTER(type));
gtk_widget_show(opt);
return opt;
}
/* Callbacks */
/* --------- */
static void cb_check_toggle(GtkWidget *widget, gpointer gdata) {
check_toggle(GPOINTER_TO_INT(gdata));
}
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