2 ///////////////////////////////////////////////////////////////////////////
5 // This program is free software: you can redistribute it and/or modify //
6 // it under the terms of the version 3 of the GNU General Public License //
7 // as published by the Free Software Foundation. //
9 // This program is distributed in the hope that it will be useful, but //
10 // WITHOUT ANY WARRANTY; without even the implied warranty of //
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
12 // General Public License for more details. //
14 // You should have received a copy of the GNU General Public License //
15 // along with this program. If not, see <http://www.gnu.org/licenses/>. //
17 // Written by and Copyright (C) Francois Fleuret //
18 // Contact <francois.fleuret@idiap.ch> for comments & bug reports //
21 ///////////////////////////////////////////////////////////////////////////
31 const int buffer_size = 1024;
32 const int nb_lines_max = 100000;
34 void build_display(int line, int nb_lines, char **lines, char *regexp) {
35 char buffer[buffer_size];
37 int maxx = getmaxx(stdscr);
38 int maxy = getmaxy(stdscr);
40 clear(); // Cleaning the window
41 refresh(); // After doing something on the display, we refresh it
48 int nb_printed_lines = 2;
49 for(int y = 0; nb_printed_lines < maxy && y < nb_lines; y++) {
50 if(strstr(lines[y], regexp)) {
52 while(lines[y][k] && k < buffer_size - 2 && k < maxx) {
53 buffer[k] = lines[y][k];
66 attron(COLOR_PAIR(1)); // Let's print something in red on black
67 printw("%d/%d pattern: %s\n", nb_printed_lines, nb_lines - 2, regexp);
68 attroff(COLOR_PAIR(1)); // Let's get back to default colors!
71 int main(int argc, char **argv) {
72 int dummy, xpos, ypos;
74 char buffer[buffer_size];
75 char *lines[nb_lines_max];
77 ifstream file(argv[1]);
80 cerr << argv[0] << " <file>" << endl;
85 cerr << "Can not open \""
93 while(nb_lines < nb_lines_max && !file.eof()) {
94 file.getline(buffer, buffer_size);
95 lines[nb_lines] = new char[strlen(buffer) + 1];
96 strcpy(lines[nb_lines], buffer);
100 char regexp[buffer_size]="";
104 initscr(); // Necessary to start a curses session
107 cout << "You can use color on this terminal" << endl;
109 cout << "No colors." << endl;
113 noecho(); // I don't want echo when I press a key
114 curs_set(0); // I don't want to see the cursor
115 keypad(stdscr, TRUE);
117 start_color(); // We will use colors
118 init_pair(1, COLOR_WHITE, COLOR_BLACK); // red on black for error messages
120 printw("Press a key to contine\n");
123 build_display(0, nb_lines, lines, regexp);
127 if(key >= ' ' && key <= 'z') {
128 regexp[regexp_point++] = key;
129 regexp[regexp_point] = '\0';
130 } else if(key == KEY_BACKSPACE || key == KEY_DC) {
131 if(regexp_point > 0) {
133 regexp[regexp_point] = '\0';
136 build_display(0, nb_lines, lines, regexp);
137 } while(key != '\n' && key != KEY_ENTER);
139 echo(); // We want to have echo
140 curs_set(1); // We want to see the cursor again
141 endwin(); // Back to normal
143 for(int l = 0; l < nb_lines; l++) {