--- /dev/null
+
+/*
+ * selector is a simple command line utility for selection of strings
+ * with a dynamic pattern-matching.
+ *
+ * Copyright (c) 2009 Francois Fleuret
+ * Written by Francois Fleuret <francois@fleuret.org>
+ *
+ * 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/>.
+ *
+ */
+
+// To use it as a super-history-search for bash:
+// selector -q -b -i -d -v -w -l ${HISTSIZE} <(history)
+
+// #include <fstream>
+// #include <iostream>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <ncurses.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <termios.h>
+#include <regex.h>
+#include <locale.h>
+
+#define VERSION "1.0"
+
+const int buffer_size = 4096;
+
+// Yeah, global variables!
+
+int nb_lines_max = 1000;
+char pattern_separator = ';';
+char label_separator = '\0';
+int output_to_vt_buffer = 0;
+int add_control_qs = 0;
+int with_colors = 1;
+int zsh_history = 0;
+int bash_history = 0;
+int inverse_order = 0;
+int remove_duplicates = 0;
+int use_regexp = 0;
+int case_sensitive = 0;
+char *title = 0;
+int error_flash = 0;
+
+int attr_modeline, attr_focus_line, attr_error;
+
+//////////////////////////////////////////////////////////////////////
+
+void inject_into_tty_buffer(char *string) {
+ struct termios oldtio, newtio;
+ const char *k;
+ tcgetattr(STDIN_FILENO, &oldtio);
+ memset(&newtio, 0, sizeof(newtio));
+ // Set input mode (non-canonical, *no echo*,...)
+ tcsetattr(STDIN_FILENO, TCSANOW, &newtio);
+ const char control_q = '\021';
+ // Put the selected string in the tty input buffer
+ for(k = string; *k; k++) {
+ if(add_control_qs && !(*k >= ' ' && *k <= '~')) {
+ // Add ^Q to quote control characters
+ ioctl(STDIN_FILENO, TIOCSTI, &control_q);
+ }
+ ioctl(STDIN_FILENO, TIOCSTI, k);
+ }
+ // Restore the old settings
+ tcsetattr(STDIN_FILENO, TCSANOW, &oldtio);
+}
+
+//////////////////////////////////////////////////////////////////////
+
+void check_opt(int argc, char **argv, int n_opt, int n, const char *help) {
+ if(n_opt + n >= argc) {
+ fprintf(stderr, "Missing argument for %s, expecting %s.\n",
+ argv[n_opt], help);
+ exit(1);
+ }
+}
+
+int string_to_positive_integer(char *string) {
+ int error = 0;
+ int result = 0;
+ char *s;
+
+ if(*string) {
+ for(s = string; *s; s++) {
+ if(*s >= '0' && *s <= '9') {
+ result = result * 10 + (int) (*s - '0');
+ } else error = 1;
+ }
+ } else error = 1;
+
+ if(error) {
+ fprintf(stderr, "Value `%s' is not a positive integer.\n", string);
+ exit(1);
+ }
+
+ return result;
+}
+
+void error_feedback() {
+ if(error_flash) {
+ flash();
+ } else {
+ beep();
+ }
+}
+
+//////////////////////////////////////////////////////////////////////
+// A quick and dirty hash table
+
+// The table itself stores indexes of the strings taken in a char
+// **table. When a string is added, if it was already in the table,
+// the new index replaces the previous one.
+
+int *new_hash_table(int hash_table_size) {
+ int *result, k;
+ result = (int *) malloc(hash_table_size * sizeof(int));
+ for(k = 0; k < hash_table_size; k++) {
+ result[k] = -1;
+ }
+ return result;
+}
+
+// Adds new_string in the table, associated to new_index. If this
+// string was not already in the table, returns -1. Otherwise, returns
+// the previous index it had.
+
+int test_and_add(char *new_string, int new_index,
+ char **strings,
+ int *hash_table, int hash_table_size) {
+
+ unsigned int code = 0;
+ int k;
+
+ // This is my recipe. I checked, it seems to work (as long as
+ // hash_table_size is not a multiple of 387433 that should be okay)
+
+ for(k = 0; new_string[k]; k++) {
+ code = code * 387433 + (unsigned int) (new_string[k]);
+ }
+
+ code = code % hash_table_size;
+
+ while(hash_table[code] >= 0) {
+ // There is a string with that code
+ if(strcmp(new_string, strings[hash_table[code]]) == 0) {
+ // It is the same string, we keep a copy of the stored index
+ int result = hash_table[code];
+ // Put the new one
+ hash_table[code] = new_index;
+ // And return the previous one
+ return result;
+ }
+ // This collision was not the same string, let's move to the next
+ // in the table
+ code = (code + 1) % hash_table_size;
+ }
+
+ // This string was not already in there, store the index in the
+ // table and return -1
+ hash_table[code] = new_index;
+ return -1;
+}
+
+//////////////////////////////////////////////////////////////////////
+// A matcher matches either with a collection of substrings, or with a
+// regexp
+
+typedef struct {
+ regex_t preg;
+ int regexp_error;
+ int nb_patterns;
+ int case_sensitive;
+ char *splitted_patterns, **patterns;
+} matcher_t;
+
+int match(char *string, matcher_t *matcher) {
+ int n;
+ if(matcher->nb_patterns >= 0) {
+ if(matcher->case_sensitive) {
+ for(n = 0; n < matcher->nb_patterns; n++) {
+ if(strstr(string, matcher->patterns[n]) == 0) return 0;
+ }
+ } else {
+ for(n = 0; n < matcher->nb_patterns; n++) {
+ if(strcasestr(string, matcher->patterns[n]) == 0) return 0;
+ }
+ }
+ return 1;
+ } else {
+ return regexec(&matcher->preg, string, 0, 0, 0) == 0;
+ }
+}
+
+void free_matcher(matcher_t *matcher) {
+ if(matcher->nb_patterns < 0) {
+ if(!matcher->regexp_error) regfree(&matcher->preg);
+ } else {
+ free(matcher->splitted_patterns);
+ free(matcher->patterns);
+ }
+}
+
+void initialize_matcher(int use_regexp, int case_sensitive,
+ matcher_t *matcher, const char *pattern) {
+ const char *s;
+ char *t;
+
+ if(use_regexp) {
+ matcher->nb_patterns = -1;
+ matcher->regexp_error = regcomp(&matcher->preg, pattern, case_sensitive ? 0 : REG_ICASE);
+ } else {
+ matcher->regexp_error = 0;
+ matcher->nb_patterns = 1;
+ matcher->case_sensitive = case_sensitive;
+
+ for(s = pattern; *s; s++) {
+ if(*s == pattern_separator) {
+ matcher->nb_patterns++;
+ }
+ }
+
+ matcher->splitted_patterns = (char *) malloc((strlen(pattern) + 1) * sizeof(char));
+ matcher->patterns = (char **) malloc(matcher->nb_patterns * sizeof(char *));
+
+ strcpy(matcher->splitted_patterns, pattern);
+
+ int n = 0;
+ char *last_pattern_start = matcher->splitted_patterns;
+ for(t = matcher->splitted_patterns; n < matcher->nb_patterns; t++) {
+ if(*t == pattern_separator || *t == '\0') {
+ *t = '\0';
+ matcher->patterns[n++] = last_pattern_start;
+ last_pattern_start = t + 1;
+ }
+ }
+ }
+}
+
+//////////////////////////////////////////////////////////////////////
+// Buffer edition
+
+void delete_char(char *buffer, int *position) {
+ if(buffer[*position]) {
+ int c = *position;
+ while(c < buffer_size && buffer[c]) {
+ buffer[c] = buffer[c+1];
+ c++;
+ }
+ } else error_feedback();
+}
+
+void backspace_char(char *buffer, int *position) {
+ if(*position > 0) {
+ if(buffer[*position]) {
+ int c = *position - 1;
+ while(buffer[c]) {
+ buffer[c] = buffer[c+1];
+ c++;
+ }
+ } else {
+ buffer[*position - 1] = '\0';
+ }
+
+ (*position)--;
+ } else error_feedback();
+}
+
+void insert_char(char *buffer, int *position, char character) {
+ if(strlen(buffer) < buffer_size - 1) {
+ int c = *position;
+ char t = buffer[c], u;
+ while(t) {
+ c++;
+ u = buffer[c];
+ buffer[c] = t;
+ t = u;
+ }
+ c++;
+ buffer[c] = '\0';
+ buffer[(*position)++] = character;
+ } else error_feedback();
+}
+
+void kill_before_cursor(char *buffer, int *position) {
+ int s = 0;
+ while(buffer[*position + s]) {
+ buffer[s] = buffer[*position + s];
+ s++;
+ }
+ buffer[s] = '\0';
+ *position = 0;
+}
+
+void kill_after_cursor(char *buffer, int *position) {
+ buffer[*position] = '\0';
+}
+
+//////////////////////////////////////////////////////////////////////
+
+int previous_visible(int current_line, int nb_lines, char **lines, matcher_t *matcher) {
+ int line = current_line - 1;
+ while(line >= 0 && !match(lines[line], matcher)) line--;
+ return line;
+}
+
+int next_visible(int current_line, int nb_lines, char **lines, matcher_t *matcher) {
+ int line = current_line + 1;
+ while(line < nb_lines && !match(lines[line], matcher)) line++;
+
+ if(line < nb_lines)
+ return line;
+ else
+ return -1;
+}
+
+//////////////////////////////////////////////////////////////////////
+
+// The value passed to this routine in current_focus_line is the index
+// of the line we should have highlited if there was no motion and if
+// it matched the matcher. So, the line actually highlighted is the
+// first one matching the matcher in that order: (1)
+// current_focus_line after motion, (2) the first with a greater
+// index, (3) the first with a lesser index.
+
+// The index of the line actually shown highlighted is written in
+// displayed_focus_line (it can be -1)
+
+// If there is a motion and a line is actually shown highlighted, its
+// value is written in current_focus_line.
+
+void update_screen(int *current_focus_line, int *displayed_focus_line,
+ int motion,
+ int nb_lines, char **lines,
+ int cursor_position,
+ char *pattern) {
+
+ char buffer[buffer_size];
+ matcher_t matcher;
+ int k, l, m;
+
+ initialize_matcher(use_regexp, case_sensitive, &matcher, pattern);
+
+ int console_width = getmaxx(stdscr);
+ int console_height = getmaxy(stdscr);
+
+ // First, we find a visible line.
+
+ int nb_printed_lines = 0;
+
+ use_default_colors();
+
+ addstr("\n");
+
+ if(matcher.regexp_error) {
+ attron(attr_error);
+ addnstr("Regexp syntax error", console_width);
+ attroff(attr_error);
+ } else if(nb_lines > 0) {
+ int new_focus_line;
+ if(match(lines[*current_focus_line], &matcher)) {
+ new_focus_line = *current_focus_line;
+ } else {
+ new_focus_line = next_visible(*current_focus_line, nb_lines, lines, &matcher);
+ if(new_focus_line < 0) {
+ new_focus_line = previous_visible(*current_focus_line, nb_lines, lines, &matcher);
+ }
+ }
+
+ // If we found a visible line and we should move, let's move
+
+ if(new_focus_line >= 0 && motion != 0) {
+ int l = new_focus_line;
+ if(motion > 0) {
+ // We want to go down, let's find the first visible line below
+ for(m = 0; l >= 0 && m < motion; m++) {
+ l = next_visible(l, nb_lines, lines, &matcher);
+ if(l >= 0) {
+ new_focus_line = l;
+ }
+ }
+ } else {
+ // We want to go up, let's find the first visible line above
+ for(m = 0; l >= 0 && m < -motion; m++) {
+ l = previous_visible(l, nb_lines, lines, &matcher);
+ if(l >= 0) {
+ new_focus_line = l;
+ }
+ }
+ }
+ }
+
+ // Here new_focus_line is either a line number matching the pattern, or -1
+
+ if(new_focus_line >= 0) {
+
+ int first_line = new_focus_line, last_line = new_focus_line, nb_match = 1;
+
+ // We find the first and last line to show, so that the total of
+ // visible lines between them (them included) is console_height-1
+
+ while(nb_match < console_height-1 && (first_line > 0 || last_line < nb_lines - 1)) {
+
+ if(first_line > 0) {
+ first_line--;
+ while(first_line > 0 && !match(lines[first_line], &matcher)) {
+ first_line--;
+ }
+ if(match(lines[first_line], &matcher)) {
+ nb_match++;
+ }
+ }
+
+ if(nb_match < console_height - 1 && last_line < nb_lines - 1) {
+ last_line++;
+ while(last_line < nb_lines - 1 && !match(lines[last_line], &matcher)) {
+ last_line++;
+ }
+
+ if(match(lines[last_line], &matcher)) {
+ nb_match++;
+ }
+ }
+ }
+
+ // Now we display them
+
+ for(l = first_line; l <= last_line; l++) {
+ if(match(lines[l], &matcher)) {
+ int k = 0;
+
+ while(lines[l][k] && k < buffer_size - 2 && k < console_width - 2) {
+ buffer[k] = lines[l][k];
+ k++;
+ }
+
+ // We fill the rest of the line with blanks if this is the
+ // highlighted line
+
+ if(l == new_focus_line) {
+ while(k < console_width) {
+ buffer[k++] = ' ';
+ }
+ }
+
+ buffer[k++] = '\n';
+ buffer[k++] = '\0';
+
+ clrtoeol();
+
+ // Highlight the highlighted line ...
+
+ if(l == new_focus_line) {
+ attron(attr_focus_line);
+ addnstr(buffer, console_width);
+ attroff(attr_focus_line);
+ } else {
+ addnstr(buffer, console_width);
+ }
+
+ nb_printed_lines++;
+ }
+ }
+
+ // If we are on a focused line and we moved, this become the new
+ // focus line
+
+ if(motion != 0) {
+ *current_focus_line = new_focus_line;
+ }
+ }
+
+ *displayed_focus_line = new_focus_line;
+
+ if(nb_printed_lines == 0) {
+ attron(attr_error);
+ addnstr("No selection", console_width);
+ attroff(attr_error);
+ }
+ } else {
+ attron(attr_error);
+ addnstr("Empty choice", console_width);
+ attroff(attr_error);
+ }
+
+ clrtobot();
+
+ // Draw the modeline
+
+ move(0, 0);
+
+ attron(attr_modeline);
+
+ for(k = 0; k < console_width; k++) buffer[k] = ' ';
+ buffer[console_width] = '\0';
+ addnstr(buffer, console_width);
+
+ move(0, 0);
+
+ // There must be a more elegant way of moving the cursor at a
+ // location met during display
+
+ int cursor_x = 0;
+
+ if(title) {
+ addstr(title);
+ addstr(" ");
+ cursor_x += strlen(title) + 1;
+ }
+
+ sprintf(buffer, "%d/%d ", nb_printed_lines, nb_lines);
+ addstr(buffer);
+ cursor_x += strlen(buffer);
+
+ addnstr(pattern, cursor_position);
+ cursor_x += cursor_position;
+
+ if(pattern[cursor_position]) {
+ addstr(pattern + cursor_position);
+ } else {
+ addstr(" ");
+ }
+
+ if(use_regexp || case_sensitive) {
+ addstr(" [");
+ if(use_regexp) {
+ addstr("regexp");
+ }
+
+ if(case_sensitive) {
+ if(use_regexp) {
+ addstr(",");
+ }
+ addstr("case");
+ }
+ addstr("]");
+ }
+
+ move(0, cursor_x);
+
+ attroff(attr_modeline);
+
+ // We are done
+
+ refresh();
+ free_matcher(&matcher);
+}
+
+//////////////////////////////////////////////////////////////////////
+
+void read_file(const char *input_filename,
+ int nb_lines_max, int *nb_lines, char **lines,
+ int hash_table_size, int *hash_table) {
+
+ char raw_line[buffer_size];
+
+ FILE *file = fopen(input_filename, "r");
+
+ if(!file) {
+ fprintf(stderr, "Can not open `%s'.\n", input_filename);
+ exit(1);
+ }
+
+ int start = 0, end = 0, k;
+
+ while(*nb_lines < nb_lines_max && (end > start || !feof(file))) {
+ int eol = start;
+ while(eol < end && raw_line[eol] != '\n') eol++;
+
+ if(eol == end) {
+ for(k = 0; k < end - start; k++) {
+ raw_line[k] = raw_line[k + start];
+ }
+ end -= start;
+ eol -= start;
+ start = 0;
+ end += fread(raw_line + end, sizeof(char), buffer_size - end, file);
+ while(eol < end && raw_line[eol] != '\n') eol++;
+ }
+
+ if(eol == buffer_size) {
+ raw_line[buffer_size - 1] = '\0';
+ fprintf(stderr, "Line too long:\n");
+ fprintf(stderr, raw_line);
+ fprintf(stderr, "\n");
+ exit(1);
+ }
+
+ raw_line[eol] = '\0';
+
+ char *t = raw_line + start;
+
+ // Remove the zsh history prefix
+
+ if(zsh_history && *t == ':') {
+ while(*t && *t != ';') t++;
+ if(*t == ';') t++;
+ }
+
+ // Remove the bash history prefix
+
+ if(bash_history) {
+ while(*t == ' ') t++;
+ while(*t >= '0' && *t <= '9') t++;
+ while(*t == ' ') t++;
+ }
+
+ // Check for duplicates with the hash table and insert the line
+ // in the list if necessary
+
+ int dup;
+
+ if(hash_table) {
+ dup = test_and_add(t, *nb_lines, lines, hash_table, hash_table_size);
+ } else {
+ dup = -1;
+ }
+
+ if(dup < 0) {
+ lines[*nb_lines] = (char *) malloc((strlen(t) + 1) * sizeof(char));
+ strcpy(lines[*nb_lines], t);
+ } else {
+ // The string was already in there, so we do not allocate a
+ // new string but use the pointer to the first occurence of it
+ lines[*nb_lines] = lines[dup];
+ lines[dup] = 0;
+ }
+
+ (*nb_lines)++;
+
+ start = eol + 1;
+ }
+}
+
+//////////////////////////////////////////////////////////////////////
+
+int main(int argc, char **argv) {
+
+ if(!ttyname(STDIN_FILENO)) {
+ fprintf(stderr, "The standard input is not a tty.\n");
+ exit(1);
+ }
+
+ char input_filename[buffer_size], output_filename[buffer_size];
+ int i, k, l, n;
+ int error = 0, show_help = 0;
+ int rest_are_files = 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, "");
+
+ strcpy(input_filename, "");
+ strcpy(output_filename, "");
+
+ i = 1;
+ while(!error && !show_help && i < argc && argv[i][0] == '-' && !rest_are_files) {
+
+ if(strcmp(argv[i], "-o") == 0) {
+ check_opt(argc, argv, i, 1, "<output filename>");
+ strncpy(output_filename, argv[i+1], buffer_size);
+ i += 2;
+ }
+
+ else if(strcmp(argv[i], "-s") == 0) {
+ check_opt(argc, argv, i, 1, "<pattern separator>");
+ pattern_separator = argv[i+1][0];
+ i += 2;
+ }
+
+ else if(strcmp(argv[i], "-x") == 0) {
+ check_opt(argc, argv, i, 1, "<label separator>");
+ label_separator = argv[i+1][0];
+ i += 2;
+ }
+
+ else if(strcmp(argv[i], "-v") == 0) {
+ output_to_vt_buffer = 1;
+ i++;
+ }
+
+ else if(strcmp(argv[i], "-w") == 0) {
+ add_control_qs = 1;
+ i++;
+ }
+
+ else if(strcmp(argv[i], "-m") == 0) {
+ with_colors = 0;
+ i++;
+ }
+
+ else if(strcmp(argv[i], "-q") == 0) {
+ error_flash = 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);
+ i += 2;
+ }
+
+ else if(strcmp(argv[i], "-i") == 0) {
+ inverse_order = 1;
+ i++;
+ }
+
+ else if(strcmp(argv[i], "-b") == 0) {
+ bash_history = 1;
+ i++;
+ }
+
+ else if(strcmp(argv[i], "-z") == 0) {
+ zsh_history = 1;
+ i++;
+ }
+
+ else if(strcmp(argv[i], "-d") == 0) {
+ remove_duplicates = 1;
+ i++;
+ }
+
+ else if(strcmp(argv[i], "-e") == 0) {
+ use_regexp = 1;
+ i++;
+ }
+
+ else if(strcmp(argv[i], "-a") == 0) {
+ case_sensitive = 1;
+ i++;
+ }
+
+ else if(strcmp(argv[i], "-t") == 0) {
+ check_opt(argc, argv, i, 1, "<title>");
+ free(title);
+ title = (char *) malloc((strlen(argv[i+1]) + 1) * sizeof(char));
+ strcpy(title, argv[i+1]);
+ i += 2;
+ }
+
+ else if(strcmp(argv[i], "-l") == 0) {
+ check_opt(argc, argv, i, 1, "<maximum number of lines>");
+ nb_lines_max = string_to_positive_integer(argv[i+1]);
+ 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 = string_to_positive_integer(argv[i + 1]);
+ color_bg_modeline = string_to_positive_integer(argv[i + 2]);
+ color_fg_highlight = string_to_positive_integer(argv[i + 3]);
+ color_bg_highlight = string_to_positive_integer(argv[i + 4]);
+ i += 5;
+ }
+
+ else if(strcmp(argv[i], "--") == 0) {
+ rest_are_files = 1;
+ i++;
+ }
+
+ else if(strcmp(argv[i], "-h") == 0) {
+ show_help = 1;
+ i++;
+ }
+
+ else {
+ fprintf(stderr, "Unknown option %s.\n", argv[i]);
+ error = 1;
+ }
+ }
+
+ if(show_help || error) {
+ /* fprintf(stderr, "Selector version %s-R%s\n", VERSION, REVISION_NUMBER); */
+ fprintf(stderr, "Written by Francois Fleuret <francois@fleuret.org>.\n");
+ fprintf(stderr, "Usage: %s [options] [<filename1> [<filename2> ...]]\n", argv[0]);
+ fprintf(stderr, "\n");
+ fprintf(stderr, " -h show this help\n");
+ fprintf(stderr, " -v inject the selected line in the tty\n");
+ fprintf(stderr, " -w quote control characters with ^Qs when using -v\n");
+ fprintf(stderr, " -d remove duplicated lines\n");
+ fprintf(stderr, " -b remove the bash history line prefix\n");
+ fprintf(stderr, " -z remove the zsh history line prefix\n");
+ fprintf(stderr, " -i invert the order of lines\n");
+ fprintf(stderr, " -e start in regexp mode\n");
+ fprintf(stderr, " -a start in case sensitive mode\n");
+ fprintf(stderr, " -m monochrome mode\n");
+ fprintf(stderr, " -q make a flash instead of a beep on an edition error\n");
+ fprintf(stderr, " -- all following arguments are filenames\n");
+ fprintf(stderr, " -t <title>\n");
+ fprintf(stderr, " add a title in the modeline\n");
+ fprintf(stderr, " -c <fg modeline> <bg modeline> <fg highlight> <bg highlight>\n");
+ fprintf(stderr, " set the display colors\n");
+ fprintf(stderr, " -o <output filename>\n");
+ fprintf(stderr, " set a file to write the selected line to\n");
+ fprintf(stderr, " -s <pattern separator>\n");
+ fprintf(stderr, " set the symbol to separate substrings in the pattern\n");
+ fprintf(stderr, " -x <label separator>\n");
+ fprintf(stderr, " set the symbol to terminate the label\n");
+ fprintf(stderr, " -l <max number of lines>\n");
+ fprintf(stderr, " set the maximum number of lines to take into account\n");
+ fprintf(stderr, "\n");
+ exit(error);
+ }
+
+ char **lines = (char **) malloc(nb_lines_max * sizeof(char *));
+
+ int nb_lines = 0;
+ int hash_table_size = nb_lines_max * 10;
+ int *hash_table = 0;
+
+ if(remove_duplicates) {
+ hash_table = new_hash_table(hash_table_size);
+ }
+
+ if(input_filename[0]) {
+ read_file(input_filename,
+ nb_lines_max, &nb_lines, lines,
+ hash_table_size, hash_table);
+ }
+
+ while(i < argc) {
+ read_file(argv[i],
+ nb_lines_max, &nb_lines, lines,
+ hash_table_size, hash_table);
+ i++;
+ }
+
+ free(hash_table);
+
+ // Now remove the null strings
+
+ n = 0;
+ for(k = 0; k < nb_lines; k++) {
+ if(lines[k]) {
+ lines[n++] = lines[k];
+ }
+ }
+
+ nb_lines = n;
+
+ if(inverse_order) {
+ for(i = 0; i < nb_lines / 2; i++) {
+ char *s = lines[nb_lines - 1 - i];
+ lines[nb_lines - 1 - i] = lines[i];
+ lines[i] = s;
+ }
+ }
+
+ // Build the labels from the strings, take only the part before the
+ // label_separator and transform control characters to printable
+ // ones
+
+ char **labels = (char **) malloc(nb_lines * sizeof(char *));
+ for(l = 0; l < nb_lines; l++) {
+ char *s, *t;
+ const char *u;
+ t = lines[l];
+ int e = 0;
+ while(*t && *t != label_separator) {
+ u = unctrl(*t++);
+ e += strlen(u);
+ }
+ labels[l] = (char *) malloc((e + 1) * sizeof(char));
+ t = lines[l];
+ s = labels[l];
+ while(*t && *t != label_separator) {
+ u = unctrl(*t++);
+ while(*u) { *s++ = *u++; }
+ }
+ *s = '\0';
+ }
+
+ char pattern[buffer_size];
+ pattern[0] = '\0';
+
+ int cursor_position;
+ cursor_position = 0;
+
+ //////////////////////////////////////////////////////////////////////
+ // Here we start to display with curse
+
+ initscr();
+ cbreak();
+ noecho();
+ // nonl();
+ intrflush(stdscr, FALSE);
+
+ // So that the arrow keys work
+ keypad(stdscr, TRUE);
+
+ attr_error = A_STANDOUT;
+ attr_modeline = A_REVERSE;
+ attr_focus_line = A_STANDOUT;
+
+ if(with_colors && 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();
+ endwin();
+ fprintf(stderr, "Color numbers have to be between 0 and %d.\n", COLORS - 1);
+ exit(1);
+ }
+
+ init_pair(1, color_fg_modeline, color_bg_modeline);
+ attr_modeline = COLOR_PAIR(1);
+
+ init_pair(2, color_fg_highlight, color_bg_highlight);
+ attr_focus_line = COLOR_PAIR(2);
+
+ init_pair(3, COLOR_WHITE, COLOR_RED);
+ attr_error = COLOR_PAIR(3);
+
+ }
+
+ int key;
+ int current_focus_line = 0, displayed_focus_line = 0;
+
+ update_screen(¤t_focus_line, &displayed_focus_line,
+ 0,
+ nb_lines, labels, cursor_position, pattern);
+
+ do {
+
+ key = getch();
+
+ int motion = 0;
+
+ if(key >= ' ' && key <= '~') { // Insert character
+ insert_char(pattern, &cursor_position, key);
+ }
+
+ else if(key == KEY_BACKSPACE ||
+ key == '\010' || // ^H
+ key == '\177') { // ^?
+ backspace_char(pattern, &cursor_position);
+ }
+
+ else if(key == KEY_DC ||
+ key == '\004') { // ^D
+ delete_char(pattern, &cursor_position);
+ }
+
+ else if(key == KEY_HOME) {
+ current_focus_line = 0;
+ }
+
+ else if(key == KEY_END) {
+ current_focus_line = nb_lines - 1;
+ }
+
+ else if(key == KEY_NPAGE) {
+ motion = 10;
+ }
+
+ else if(key == KEY_PPAGE) {
+ motion = -10;
+ }
+
+ else if(key == KEY_DOWN ||
+ key == '\016') { // ^N
+ motion = 1;
+ }
+
+ else if(key == KEY_UP ||
+ key == '\020') { // ^P
+ motion = -1;
+ }
+
+ else if(key == KEY_LEFT ||
+ key == '\002') { // ^B
+ if(cursor_position > 0) cursor_position--;
+ else error_feedback();
+ }
+
+ else if(key == KEY_RIGHT ||
+ key == '\006') { // ^F
+ if(pattern[cursor_position]) cursor_position++;
+ else error_feedback();
+ }
+
+ else if(key == '\001') { // ^A
+ cursor_position = 0;
+ }
+
+ else if(key == '\005') { // ^E
+ cursor_position = strlen(pattern);
+ }
+
+ else if(key == '\022') { // ^R
+ use_regexp = !use_regexp;
+ }
+
+ else if(key == '\011') { // ^I
+ case_sensitive = !case_sensitive;
+ }
+
+ else if(key == '\025') { // ^U
+ kill_before_cursor(pattern, &cursor_position);
+ }
+
+ else if(key == '\013') { // ^K
+ kill_after_cursor(pattern, &cursor_position);
+ }
+
+ else if(key == '\014') { // ^L
+ // I suspect that we may sometime mess up the display
+ clear();
+ }
+
+ update_screen(¤t_focus_line, &displayed_focus_line,
+ motion,
+ nb_lines, labels, cursor_position, pattern);
+
+ } while(key != '\007' && // ^G
+ key != '\033' && // ^[ (escape)
+ key != '\n' &&
+ key != KEY_ENTER);
+
+ echo();
+ endwin();
+
+ //////////////////////////////////////////////////////////////////////
+ // Here we come back to standard display
+
+ if((key == KEY_ENTER || key == '\n')) {
+
+ char *t;
+
+ if(displayed_focus_line >= 0 && displayed_focus_line < nb_lines) {
+ t = lines[displayed_focus_line];
+ if(label_separator) {
+ while(*t && *t != label_separator) t++;
+ if(*t) t++;
+ }
+ } else {
+ t = 0;
+ }
+
+ if(output_to_vt_buffer && t) {
+ inject_into_tty_buffer(t);
+ }
+
+ if(output_filename[0]) {
+ FILE *out = fopen(output_filename, "w");
+ if(out) {
+ if(t) {
+ fprintf(out, t);
+ }
+ fprintf(out, "\n");
+ } else {
+ fprintf(stderr, "Can not open %s for writing.\n", output_filename);
+ exit(1);
+ }
+ fclose(out);
+ }
+
+ } else {
+ printf("Aborted.\n");
+ }
+
+ for(l = 0; l < nb_lines; l++) {
+ free(lines[l]);
+ free(labels[l]);
+ }
+
+ free(labels);
+ free(lines);
+ free(title);
+
+ exit(0);
+}
projects / selector.git / commitdiff