-
-///////////////////////////////////////////////////////////////////////////
-// START_IP_HEADER //
-// //
-// This program is free software: you can redistribute it and/or modify //
-// it under the terms of the version 3 of the GNU General Public License //
-// as published by the Free Software Foundation. //
-// //
-// 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 for more details. //
-// //
-// You should have received a copy of the GNU General Public License //
-// along with this program. If not, see <http://www.gnu.org/licenses/>. //
-// //
-// Written by and Copyright (C) Francois Fleuret //
-// Contact <francois.fleuret@idiap.ch> for comments & bug reports //
-// //
-// END_IP_HEADER //
-///////////////////////////////////////////////////////////////////////////
+/*
+ * selector is a simple shell command for selection of strings with a
+ * dynamic pattern-matching.
+ *
+ * Copyright (c) 2009 Francois Fleuret
+ * Written by Francois Fleuret <francois.fleuret@idiap.ch>
+ *
+ * This file is part of selector.
+ *
+ * selector is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * selector 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with selector. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
/*
Here is the magical shell script for a smart bash-history. Note that
- the line remains in /tmp/selector.out, which may be a scurity concern.
+ the line remains in /tmp/selector.out, which may be a security
+ concern.
./selector -f ~/.bash_history
OLD_SETTINGS=`stty -g`
#include <fstream>
#include <string.h>
#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
using namespace std;
int buffer_size = 1024;
-int nb_lines_max = 100000;
+int nb_lines_max = 1000;
char pattern_separator = ';';
+int output_to_vt_buffer = 0;
int match(char *string, int nb_patterns, char **patterns) {
for(int n = 0; n < nb_patterns; n++) {
void check_opt(int argc, char **argv, int n_opt, int n, const char *help) {
if(n_opt + n >= argc) {
- cerr << "Missing argument for " << argv[n_opt] << ". Expecting " << help << "." << endl;
+ cerr << "Missing argument for " << argv[n_opt] << "."
+ << " "
+ << "Expecting " << help << "."
+ << endl;
exit(1);
}
}
return -1;
}
-void update_screen(int *current_line, int motion,
+void update_screen(int *current_line, int *temporary_line, int motion,
int nb_lines, char **lines,
char *pattern_list,
- int noblink) {
+ int no_blink) {
char buffer[buffer_size];
int console_width = getmaxx(stdscr);
int console_height = getmaxy(stdscr);
- int nb_printed_lines = 1, last_printer_line = -1;
+ int nb_printed_lines = 1;
// First, we find a visible line. In priority: The current, or the
// first visible after it, or the first visible before it.
if(new_line >= 0 && motion != 0) {
int l = new_line;
- l += motion;
-
if(motion > 0) {
// We want to go down, let's find the first visible line below
- l = next_visible(new_line, nb_lines, lines, nb_patterns, patterns);
- if(l >= 0) {
- new_line = l;
+ for(int m = 0; l >= 0 && m < motion; m++) {
+ l = next_visible(l, nb_lines, lines, nb_patterns, patterns);
+ if(l >= 0) {
+ new_line = l;
+ }
}
} else {
// We want to go up, let's find the first visible line above
- l = previous_visible(new_line, nb_lines, lines, nb_patterns, patterns);
- if(l >= 0) {
- new_line = l;
+ for(int m = 0; l >= 0 && m < -motion; m++) {
+ l = previous_visible(l, nb_lines, lines, nb_patterns, patterns);
+ if(l >= 0) {
+ new_line = l;
+ }
}
}
}
- if(!noblink) {
+ if(!no_blink) {
clear();
}
k++;
}
- if(noblink || l == new_line) {
+ if(no_blink || l == new_line) {
while(k < console_width) {
buffer[k++] = ' ';
}
addnstr(buffer, console_width);
}
- last_printer_line = l;
nb_printed_lines++;
}
}
+ *temporary_line = new_line;
if(motion != 0) {
*current_line = new_line;
}
}
- if(noblink) { // Erase the rest of the window. That's slightly ugly.
+ // if(nb_printed_lines == 1) {
+ // addnstr("[no selection]\n", console_width);
+ // nb_printed_lines++;
+ // }
+
+ if(no_blink) { // Erase the rest of the window. That's slightly ugly.
int k = 0;
while(k < console_width) {
buffer[k++] = ' ';
int main(int argc, char **argv) {
char buffer[buffer_size];
char *lines[nb_lines_max];
- int noblink = 0;
+ int no_blink = 0;
char input_filename[buffer_size], output_filename[buffer_size];
strcpy(input_filename, "/dev/stdin");
i += 2;
}
+ else if(strcmp(argv[i], "-v") == 0) {
+ output_to_vt_buffer = 1;
+ i++;
+ }
+
else if(strcmp(argv[i], "-f") == 0) {
check_opt(argc, argv, i, 1, "<input filename>");
strncpy(input_filename, argv[i+1], buffer_size);
}
else if(strcmp(argv[i], "-b") == 0) {
- noblink = 1;
+ no_blink = 1;
i++;
}
}
else {
- cerr << argv[0] << " [-h] [-o <output filename>] [-b] [-l <max number of lines>] [-s <pattern separator>]" << endl;
+ cerr << argv[0] << " [-h] [-o <output filename>] [-b] [-l <max number of lines>] [-s <pattern separator>] [-v]" << endl;
if(strcmp(argv[i], "-h") == 0) {
exit(0);
} else {
int key;
- int line = 0;
+ int current_line = 0, temporary_line = 0;
- update_screen(&line, 0, nb_lines, lines, patterns, noblink);
+ update_screen(¤t_line, &temporary_line, 0, nb_lines, lines, patterns, no_blink);
do {
}
}
+ else if(key == KEY_HOME) {
+ current_line = 0;
+ }
+
+ else if(key == KEY_END) {
+ current_line = nb_lines - 1;
+ }
+
+ else if(key == KEY_NPAGE) {
+ motion = 10;
+ }
+
+ else if(key == KEY_PPAGE) {
+ motion = -10;
+ }
+
else if(key == KEY_UP || key == '\10') {
motion = -1;
}
motion = 1;
}
- update_screen(&line, motion, nb_lines, lines, patterns, noblink);
+ update_screen(¤t_line, &temporary_line, motion,
+ nb_lines, lines, patterns, no_blink);
} while(key != '\n' && key != KEY_ENTER && key != '\a');
echo();
curs_set(1);
endwin();
- ofstream out(output_filename);
- if(out.fail()) {
- cerr << "Can not open " << output_filename << " for writing." << endl;
- exit(1);
+ if(output_to_vt_buffer) {
+ if((key == KEY_ENTER || key == '\n') && temporary_line >= 0 && temporary_line < nb_lines) {
+ char *tty = ttyname (STDIN_FILENO);
+ int fd = open(tty, O_WRONLY);
+ write(fd, lines[temporary_line], strlen(lines[temporary_line]));
+ close(fd);
+ }
} else {
- if((key == KEY_ENTER || key == '\n') && line >= 0 && line < nb_lines) {
- out << lines[line] << endl;
+
+ ofstream out(output_filename);
+ if(out.fail()) {
+ cerr << "Can not open " << output_filename << " for writing." << endl;
+ exit(1);
} else {
- out << endl;
+ if((key == KEY_ENTER || key == '\n') && temporary_line >= 0 && temporary_line < nb_lines) {
+ out << lines[temporary_line] << endl;
+ } else {
+ out << endl;
+ }
+ out.flush();
}
- out.flush();
}
for(int l = 0; l < nb_lines; l++) {
projects / selector.git / blobdiff