+
/*
* 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>
+ * Written by Francois Fleuret <francois@fleuret.org>
*
* This file is part of selector.
*
*
*/
-// Here is how to use it as a super-history-search
+// To use it as a super-history-search:
// ./selector -v -f ${HISTFILE}
+// This software is highly Linux-specific, but I would be glad to get
+// patches to make it work on other OS
+
#include <fstream>
#include <iostream>
using namespace std;
+#define VERSION "1.0"
+
// Yeah, global variables!
int buffer_size = 1024;
-int nb_lines_max = 1000;
+int nb_lines_max = 10000;
char pattern_separator = ';';
int output_to_vt_buffer = 0;
+int with_colors = 1;
+
+//////////////////////////////////////////////////////////////////////
+
+// This looks severely Linux-only ...
+
+void inject_into_tty_buffer(char *line) {
+ char *tty = ttyname(STDIN_FILENO);
+ int fd = open(tty, O_WRONLY);
+
+ struct termios oldtio, newtio;
+
+ if (fd >= 0) {
+ // Save current port settings
+ tcgetattr(fd,&oldtio);
+ memset(&newtio, 0, sizeof(newtio));
+ // Set input mode (non-canonical, *no echo*,...)
+ tcflush(fd, TCIFLUSH);
+ tcsetattr(fd,TCSANOW, &newtio);
+ // Put the selected line in the tty input buffer
+ for(char *k = line; *k; k++) {
+ ioctl(fd, TIOCSTI, k);
+ }
+ // Restore the old settings
+ tcsetattr(fd,TCSANOW, &oldtio);
+ close(fd);
+ } else {
+ cerr << "Can not open " << tty << "." << endl;
+ exit(1);
+ }
+}
//////////////////////////////////////////////////////////////////////
int console_width = getmaxx(stdscr);
int console_height = getmaxy(stdscr);
- 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.
addstr("\n");
+ int nb_printed_lines = 1;
+
// Here new_line is either a line number matching the patterns, or -1
if(new_line >= 0) {
// Highlight the highlighted line ...
if(l == new_line) {
- attron(COLOR_PAIR(2));
- addnstr(buffer, console_width);
- attroff(COLOR_PAIR(2));
+ if(with_colors) {
+ attron(COLOR_PAIR(2));
+ addnstr(buffer, console_width);
+ attroff(COLOR_PAIR(2));
+ } else {
+ attron(A_STANDOUT);
+ addnstr(buffer, console_width);
+ attroff(A_STANDOUT);
+ }
} else {
addnstr(buffer, console_width);
}
}
}
- *temporary_line = new_line;
if(motion != 0) {
*current_line = new_line;
}
}
+ *temporary_line = new_line;
+
if(nb_printed_lines == 1) {
addnstr("[no selection]\n", console_width);
nb_printed_lines++;
buffer[console_width] = '\0';
move(0, 0);
- attron(COLOR_PAIR(1));
- addnstr(buffer, console_width);
- attroff(COLOR_PAIR(1));
+ if(with_colors) {
+ attron(COLOR_PAIR(1));
+ addnstr(buffer, console_width);
+ attroff(COLOR_PAIR(1));
+ } else {
+ attron(A_REVERSE);
+ addnstr(buffer, console_width);
+ attroff(A_REVERSE);
+ }
// We are done
char buffer[buffer_size];
char *lines[nb_lines_max];
int no_blink = 0;
+ int color_fg_modeline, color_bg_modeline;
+ int color_fg_highlight, color_bg_highlight;
+
+ color_fg_modeline = COLOR_WHITE;
+ color_bg_modeline = COLOR_BLACK;
+ color_fg_highlight = COLOR_BLACK;
+ color_bg_highlight = COLOR_YELLOW;
+
+ setlocale(LC_ALL, "");
char input_filename[buffer_size], output_filename[buffer_size];
strcpy(input_filename, "");
i++;
}
+ else if(strcmp(argv[i], "-m") == 0) {
+ with_colors = 0;
+ i++;
+ }
+
else if(strcmp(argv[i], "-f") == 0) {
check_opt(argc, argv, i, 1, "<input filename>");
strncpy(input_filename, argv[i+1], buffer_size);
i += 2;
}
+ else if(strcmp(argv[i], "-c") == 0) {
+ check_opt(argc, argv, i, 4, "<fg modeline> <bg modeline> <fg highlight> <bg highlight>");
+ color_fg_modeline = atoi(argv[i+1]);
+ color_bg_modeline = atoi(argv[i+2]);
+ color_fg_highlight = atoi(argv[i+3]);
+ color_bg_highlight = atoi(argv[i+4]);
+ i += 5;
+ }
+
else {
- cerr << argv[0]
+ cerr << "Selector version " << VERSION
+ << endl
+ << "Written by Francois Fleuret <francois@fleuret.org>"
+ << endl
+ << argv[0]
<< " [-h]"
- << " [-b]"
<< " [-v]"
+ << " [-m]"
+ << " [-c <fg modeline> <bg modeline> <fg highlight> <bg highlight>]"
<< " [-o <output filename>]"
<< " [-s <pattern separator>]"
<< " [-l <max number of lines>]"
ifstream file(input_filename);
if(file.fail()) {
- cerr << "Can not open \"" << input_filename << "\"" << endl;
+ cerr << "Can not open " << input_filename << endl;
return 1;
}
initscr();
- if(!has_colors()) {
- cerr << "No colors." << endl;
- return 1;
+ if(with_colors) {
+ if(has_colors()) {
+ start_color();
+ if(color_fg_modeline < 0 || color_fg_modeline >= COLORS ||
+ color_bg_modeline < 0 || color_bg_modeline >= COLORS ||
+ color_fg_highlight < 0 || color_bg_highlight >= COLORS ||
+ color_bg_highlight < 0 || color_bg_highlight >= COLORS) {
+ echo();
+ curs_set(1);
+ endwin();
+ cerr << "Color numbers have to be between 0 and " << COLORS - 1 << "." << endl;
+ exit(1);
+ }
+ init_pair(1, color_fg_modeline, color_bg_modeline);
+ init_pair(2, color_fg_highlight, color_bg_highlight);
+ } else {
+ with_colors = 0;
+ }
}
noecho();
- curs_set(0);
- keypad(stdscr, TRUE);
-
- start_color();
- // init_pair(1, COLOR_WHITE, COLOR_BLACK);
- init_pair(1, COLOR_WHITE, COLOR_GREEN);
- init_pair(2, COLOR_BLACK, COLOR_YELLOW);
+ curs_set(0); // Hide the cursor
+ keypad(stdscr, TRUE); // So that the arrow keys work
int key;
-
int current_line = 0, temporary_line = 0;
update_screen(¤t_line, &temporary_line, 0, nb_lines, lines, patterns, no_blink);
int motion = 0;
- if(key >= ' ' && key <= 'z') {
+ if(key >= ' ' && key <= '~') {
patterns[patterns_point++] = key;
patterns[patterns_point] = '\0';
}
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();
- 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);
-
- struct termios oldtio, newtio;
-
- if (fd >= 0) {
- // Save current port settings
- tcgetattr(fd,&oldtio);
- bzero(&newtio, sizeof(newtio));
- // Set input mode (non-canonical, *no echo*,...)
- tcflush(fd, TCIFLUSH);
- tcsetattr(fd,TCSANOW, &newtio);
- // Put the selected line in the tty input buffer
- for(char *k = lines[temporary_line]; *k; k++) {
- ioctl(fd, TIOCSTI, k);
- }
- // Restore the old settings
- tcsetattr(fd,TCSANOW, &oldtio);
- close(fd);
- } else {
- cerr << "Can not open " << tty << "." << endl;
- exit(1);
+ if((key == KEY_ENTER || key == '\n')) {
+ if(output_to_vt_buffer) {
+ if(temporary_line >= 0 && temporary_line < nb_lines) {
+ inject_into_tty_buffer(lines[temporary_line]);
}
- }
- } else {
- ofstream out(output_filename);
- if(out.fail()) {
- cerr << "Can not open " << output_filename << " for writing." << endl;
- exit(1);
} else {
- if((key == KEY_ENTER || key == '\n') && temporary_line >= 0 && temporary_line < nb_lines) {
- out << lines[temporary_line] << endl;
+ ofstream out(output_filename);
+ if(out.fail()) {
+ cerr << "Can not open " << output_filename << " for writing." << endl;
+ exit(1);
} else {
- out << endl;
+ if(temporary_line >= 0 && temporary_line < nb_lines) {
+ out << lines[temporary_line] << endl;
+ } else {
+ out << endl;
+ }
}
out.flush();
}
projects / selector.git / blobdiff