* selector is a simple command line utility for selection of strings
* with a dynamic pattern-matching.
*
- * Copyright (c) 2009 Francois Fleuret
+ * Copyright (c) 2009, 2010 Francois Fleuret
* Written by Francois Fleuret <francois@fleuret.org>
*
* This file is part of selector.
*
*/
-// To use it as a super-history-search for bash:
-// selector -q -b -i -d -v -w -l ${HISTSIZE} <(history)
+/*
+
+ To use it as a super-history-search for bash:
+ selector -q -b -i -d -v -w -l ${HISTSIZE} <(history)
+
+*/
-// #include <fstream>
-// #include <iostream>
+#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
+#include <errno.h>
#include <ncurses.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <termios.h>
#include <regex.h>
#include <locale.h>
+#include <getopt.h>
+#include <limits.h>
-#define VERSION "1.0"
+#define VERSION "1.1.1"
-const int buffer_size = 4096;
+#define BUFFER_SIZE 4096
-// Yeah, global variables!
+/* Yeah, global variables! */
int nb_lines_max = 1000;
char pattern_separator = ';';
int attr_modeline, attr_focus_line, attr_error;
-//////////////////////////////////////////////////////////////////////
+/********************************************************************/
-void inject_into_tty_buffer(char *string) {
+/* malloc with error checking. */
+
+void *safe_malloc(size_t n) {
+ void *p = malloc(n);
+ if (!p && n != 0) {
+ printf("Can not allocate memory: %s\n", strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+ return p;
+}
+
+/*********************************************************************/
+
+void inject_into_tty_buffer(char *string, int add_control_qs) {
struct termios oldtio, newtio;
const char *k;
+ const char control_q = '\021';
tcgetattr(STDIN_FILENO, &oldtio);
memset(&newtio, 0, sizeof(newtio));
- // Set input mode (non-canonical, *no echo*,...)
+ /* 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
+ /* 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
+ /* Add ^Q to quote control characters */
ioctl(STDIN_FILENO, TIOCSTI, &control_q);
}
ioctl(STDIN_FILENO, TIOCSTI, k);
}
- // Restore the old settings
+ /* 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;
+void str_to_positive_integers(char *string, int *values, int nb) {
+ int current_value, gotone;
char *s;
+ int n;
- if(*string) {
- for(s = string; *s; s++) {
- if(*s >= '0' && *s <= '9') {
- result = result * 10 + (int) (*s - '0');
- } else error = 1;
+ n = 0;
+ current_value = 0;
+ gotone = 0;
+ s = string;
+
+ while(1) {
+ if(*s >= '0' && *s <= '9') {
+ current_value = current_value * 10 + (int) (*s - '0');
+ gotone = 1;
+ } else if(*s == ',' || *s == '\0') {
+ if(gotone) {
+ if(n < nb) {
+ values[n++] = current_value;
+ if(*s == '\0') {
+ if(n == nb) {
+ return;
+ } else {
+ fprintf(stderr,
+ "Selector: Missing value in `%s'.\n", string);
+ exit(EXIT_FAILURE);
+ }
+ }
+ current_value = 0;
+ gotone = 0;
+ } else {
+ fprintf(stderr,
+ "Selector: Too many values in `%s'.\n", string);
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ fprintf(stderr,
+ "Selector: Empty value in `%s'.\n", string);
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ fprintf(stderr,
+ "Selector: Syntax error in `%s'.\n", string);
+ exit(EXIT_FAILURE);
}
- } else error = 1;
-
- if(error) {
- fprintf(stderr, "Value `%s' is not a positive integer.\n", string);
- exit(1);
+ s++;
}
-
- return result;
}
void error_feedback() {
}
}
-//////////////////////////////////////////////////////////////////////
-// A quick and dirty hash table
+void usage(FILE *out) {
+
+ fprintf(out, "Selector version %s (%s)\n", VERSION, UNAME);
+ fprintf(out, "Written by Francois Fleuret <francois@fleuret.org>.\n");
+ fprintf(out, "\n");
+ fprintf(out, "Usage: selector [options] [<filename1> [<filename2> ...]]\n");
+ fprintf(out, "\n");
+ fprintf(out, " -h, --help\n");
+ fprintf(out, " show this help\n");
+ fprintf(out, " -v, --inject-in-tty\n");
+ fprintf(out, " inject the selected line in the tty\n");
+ fprintf(out, " -w, --add-control-qs\n");
+ fprintf(out, " quote control characters with ^Qs when using -v\n");
+ fprintf(out, " -d, --remove-duplicates\n");
+ fprintf(out, " remove duplicated lines\n");
+ fprintf(out, " -b, --remove-bash-prefix\n");
+ fprintf(out, " remove the bash history line prefix\n");
+ fprintf(out, " -z, --remove-zsh-prefix\n");
+ fprintf(out, " remove the zsh history line prefix\n");
+ fprintf(out, " -i, --revert-order\n");
+ fprintf(out, " invert the order of lines\n");
+ fprintf(out, " -e, --regexp\n");
+ fprintf(out, " start in regexp mode\n");
+ fprintf(out, " -a, --case-sensitive\n");
+ fprintf(out, " start in case sensitive mode\n");
+ fprintf(out, " -m, --monochrome\n");
+ fprintf(out, " monochrome mode\n");
+ fprintf(out, " -q, --no-beep\n");
+ fprintf(out, " make a flash instead of a beep on an edition error\n");
+ fprintf(out, " --bash\n");
+ fprintf(out, " setting for bash history search, same as -b -i -d -v -w\n");
+ fprintf(out, " --, --rest-are-files\n");
+ fprintf(out, " all following arguments are filenames\n");
+ fprintf(out, " -t <title>, --title <title>\n");
+ fprintf(out, " add a title in the modeline\n");
+ fprintf(out, " -c <colors>, --colors <colors>\n");
+ fprintf(out, " set the display colors with an argument of the form\n");
+ fprintf(out, " <fg_modeline>,<bg_modeline>,<fg_highlight>,<bg_highlight>\n");
+ fprintf(out, " -o <output filename>, --output-file <output filename>\n");
+ fprintf(out, " set a file to write the selected line to\n");
+ fprintf(out, " -s <pattern separator>, --pattern-separator <pattern separator>\n");
+ fprintf(out, " set the symbol to separate substrings in the pattern\n");
+ fprintf(out, " -x <label separator>, --label-separator <label separator>\n");
+ fprintf(out, " set the symbol to terminate the label\n");
+ fprintf(out, " -l <max number of lines>, --number-of-lines <max number of lines>\n");
+ fprintf(out, " set the maximum number of lines to take into account\n");
+ fprintf(out, "\n");
+}
+
+/*********************************************************************/
+
+/* 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.
+/* 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;
+struct hash_table_t {
+ int size;
+ int *entries;
+};
+
+struct hash_table_t *new_hash_table(int size) {
+ int k;
+ struct hash_table_t *hash_table;
+
+ hash_table = safe_malloc(sizeof(struct hash_table_t));
+
+ hash_table->size = size;
+ hash_table->entries = safe_malloc(hash_table->size * sizeof(int));
+
+ for(k = 0; k < hash_table->size; k++) {
+ hash_table->entries[k] = -1;
}
- return result;
+
+ return hash_table;
+}
+
+void free_hash_table(struct hash_table_t *hash_table) {
+ free(hash_table->entries);
+ free(hash_table);
}
-// 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.
+/* 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) {
+int add_and_get_previous_index(struct hash_table_t *hash_table,
+ const char *new_string, int new_index,
+ char **strings) {
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)
+ /* 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;
+ 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
+ while(hash_table->entries[code] >= 0) {
+ /* There is a string with that code */
+ if(strcmp(new_string, strings[hash_table->entries[code]]) == 0) {
+ /* It is the same string, we keep a copy of the stored index */
+ int result = hash_table->entries[code];
+ /* Put the new one */
+ hash_table->entries[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 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;
+ /* This string was not already in there, store the index in the
+ table and return -1 */
+
+ hash_table->entries[code] = new_index;
return -1;
}
-//////////////////////////////////////////////////////////////////////
-// A matcher matches either with a collection of substrings, or with a
-// regexp
+/*********************************************************************
+ A matcher matches either with a collection of substrings, or with a
+ regexp */
typedef struct {
regex_t preg;
void initialize_matcher(int use_regexp, int case_sensitive,
matcher_t *matcher, const char *pattern) {
const char *s;
- char *t;
+ char *t, *last_pattern_start;
+ int n;
if(use_regexp) {
matcher->nb_patterns = -1;
- matcher->regexp_error = regcomp(&matcher->preg, pattern, case_sensitive ? 0 : REG_ICASE);
+ matcher->regexp_error = regcomp(&matcher->preg, pattern,
+ case_sensitive ? 0 : REG_ICASE);
} else {
matcher->regexp_error = 0;
matcher->nb_patterns = 1;
}
}
- matcher->splitted_patterns = (char *) malloc((strlen(pattern) + 1) * sizeof(char));
- matcher->patterns = (char **) malloc(matcher->nb_patterns * sizeof(char *));
+ matcher->splitted_patterns =
+ safe_malloc((strlen(pattern) + 1) * sizeof(char));
+
+ matcher->patterns =
+ safe_malloc(matcher->nb_patterns * sizeof(char *));
strcpy(matcher->splitted_patterns, pattern);
- int n = 0;
- char *last_pattern_start = matcher->splitted_patterns;
+ n = 0;
+ last_pattern_start = matcher->splitted_patterns;
for(t = matcher->splitted_patterns; n < matcher->nb_patterns; t++) {
if(*t == pattern_separator || *t == '\0') {
*t = '\0';
}
}
-//////////////////////////////////////////////////////////////////////
-// Buffer edition
+/*********************************************************************
+ Buffer edition */
void delete_char(char *buffer, int *position) {
if(buffer[*position]) {
int c = *position;
- while(c < buffer_size && buffer[c]) {
+ while(c < BUFFER_SIZE && buffer[c]) {
buffer[c] = buffer[c+1];
c++;
}
}
void insert_char(char *buffer, int *position, char character) {
- if(strlen(buffer) < buffer_size - 1) {
+ if(strlen(buffer) < BUFFER_SIZE - 1) {
int c = *position;
char t = buffer[c], u;
while(t) {
buffer[*position] = '\0';
}
-//////////////////////////////////////////////////////////////////////
+/*********************************************************************/
-int previous_visible(int current_line, int nb_lines, char **lines, matcher_t *matcher) {
+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 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++;
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 line highlighted is the first one matching the matcher in that
+ order: (1) current_focus_line after motion, if it does not match,
+ then (2) the first with a greater index, if none matches, then (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)
+ The index of the line actually shown highlighted is written in
+ displayed_focus_line (it can be -1 if no line at all matches the
+ matcher)
-// If there is a motion and a line is actually shown highlighted, its
-// value is written in current_focus_line.
+ 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 cursor_position,
char *pattern) {
- char buffer[buffer_size];
+ char buffer[BUFFER_SIZE];
matcher_t matcher;
int k, l, m;
+ int console_width, console_height;
+ int nb_printed_lines = 0;
+ int cursor_x;
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;
+ console_width = getmaxx(stdscr);
+ console_height = getmaxy(stdscr);
use_default_colors();
+ /* Add an empty line where we will print the modeline at the end */
+
addstr("\n");
+ /* If the regexp is erroneous, print a message saying so */
+
if(matcher.regexp_error) {
attron(attr_error);
addnstr("Regexp syntax error", console_width);
attroff(attr_error);
- } else if(nb_lines > 0) {
+ }
+
+ /* Else, and we do have lines to select from, find a visible line. */
+
+ 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);
+ 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);
+ 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 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
+ /* 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) {
}
}
} else {
- // We want to go up, let's find the first visible line above
+ /* 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) {
}
}
- // Here new_focus_line is either a line number matching the pattern, or -1
+ /* 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;
+ int first_line = new_focus_line, last_line = new_focus_line;
+ int 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
+ /* We find the first and last lines 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)) {
+ while(nb_match < console_height-1 &&
+ (first_line > 0 || last_line < nb_lines - 1)) {
if(first_line > 0) {
first_line--;
}
}
- // Now we display them
+ /* 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) {
+ 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
+ /* We fill the rest of the line with blanks if this is the
+ highlighted line */
if(l == new_focus_line) {
while(k < console_width) {
clrtoeol();
- // Highlight the highlighted line ...
+ /* Highlight the highlighted line ... */
if(l == new_focus_line) {
attron(attr_focus_line);
}
}
- // If we are on a focused line and we moved, this become the new
- // focus line
+ /* 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;
addnstr("No selection", console_width);
attroff(attr_error);
}
- } else {
+ }
+
+ /* Else, print a message saying that there are no lines to select from */
+
+ else {
attron(attr_error);
addnstr("Empty choice", console_width);
attroff(attr_error);
clrtobot();
- // Draw the modeline
+ /* Draw the modeline */
move(0, 0);
move(0, 0);
- // There must be a more elegant way of moving the cursor at a
- // location met during display
+ /* There must be a more elegant way of moving the cursor at a
+ location met during display */
- int cursor_x = 0;
+ cursor_x = 0;
if(title) {
addstr(title);
addstr(" ");
}
+ /* Add a few info about the mode we are in (regexp and/or case
+ sensitive) */
+
if(use_regexp || case_sensitive) {
addstr(" [");
if(use_regexp) {
attroff(attr_modeline);
- // We are done
+ /* 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) {
+void store_line(struct hash_table_t *hash_table,
+ const char *new_line,
+ int *nb_lines, char **lines) {
+ int dup;
- char raw_line[buffer_size];
+ /* Remove the zsh history prefix */
- FILE *file = fopen(input_filename, "r");
+ if(zsh_history && *new_line == ':') {
+ while(*new_line && *new_line != ';') new_line++;
+ if(*new_line == ';') new_line++;
+ }
+
+ /* Remove the bash history prefix */
+
+ if(bash_history) {
+ while(*new_line == ' ') new_line++;
+ while(*new_line >= '0' && *new_line <= '9') new_line++;
+ while(*new_line == ' ') new_line++;
+ }
+
+ /* Check for duplicates with the hash table and insert the line in
+ the list if necessary */
+
+ if(hash_table) {
+ dup = add_and_get_previous_index(hash_table,
+ new_line, *nb_lines, lines);
+ } else {
+ dup = -1;
+ }
+
+ if(dup < 0) {
+ lines[*nb_lines] = safe_malloc((strlen(new_line) + 1) * sizeof(char));
+ strcpy(lines[*nb_lines], new_line);
+ } 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)++;
+}
+
+void read_file(struct hash_table_t *hash_table,
+ const char *input_filename,
+ int nb_lines_max, int *nb_lines, char **lines) {
+
+ char raw_line[BUFFER_SIZE];
+ int start, end, eol, k;
+ FILE *file;
+
+ file = fopen(input_filename, "r");
if(!file) {
- fprintf(stderr, "Can not open `%s'.\n", input_filename);
- exit(1);
+ fprintf(stderr, "Selector: Can not open `%s'.\n", input_filename);
+ exit(EXIT_FAILURE);
}
- int start = 0, end = 0, k;
+ start = 0;
+ end = 0;
while(*nb_lines < nb_lines_max && (end > start || !feof(file))) {
- int eol = start;
+ eol = start;
+
+ /* Look for the end of a line in what is already in the buffer */
while(eol < end && raw_line[eol] != '\n') eol++;
+ /* if we did not find the of a line, move what has not been
+ processed and is in the buffer to the beginning of the buffer,
+ fill the buffer with new data from the file, and look for the
+ end of a line */
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);
+ 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");
+ /* The end of the line is the buffer size, which means the line is
+ too long */
+
+ if(eol == BUFFER_SIZE) {
+ raw_line[BUFFER_SIZE - 1] = '\0';
+ fprintf(stderr, "Selector: Line too long (max is %d characters):\n",
+ BUFFER_SIZE);
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++;
+ exit(EXIT_FAILURE);
}
- // 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 we got a line, we replace the carriage return by a \0 to
+ finish the string */
- 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;
- }
+ raw_line[eol] = '\0';
- (*nb_lines)++;
+ store_line(hash_table, raw_line + start,
+ nb_lines, lines);
start = eol + 1;
}
+
+ fclose(file);
}
-//////////////////////////////////////////////////////////////////////
+/*********************************************************************/
+
+/* For long options that have no equivalent short option, use a
+ non-character as a pseudo short option, starting with CHAR_MAX + 1. */
+enum
+{
+ OPT_BASH_MODE = CHAR_MAX + 1
+};
+
+static struct option long_options[] = {
+ { "output-file", 1, 0, 'o' },
+ { "pattern-separator", 1, 0, 's' },
+ { "label-separator", 1, 0, 'x' },
+ { "inject-in-tty", no_argument, 0, 'v' },
+ { "add-control-qs", no_argument, 0, 'w' },
+ { "monochrome", no_argument, 0, 'm' },
+ { "no-beep", no_argument, 0, 'q' },
+ { "revert-order", no_argument, 0, 'i' },
+ { "remove-bash-prefix", no_argument, 0, 'b' },
+ { "remove-zsh-prefix", no_argument, 0, 'z' },
+ { "remove-duplicates", no_argument, 0, 'd' },
+ { "regexp", no_argument, 0, 'e' },
+ { "case-sensitive", no_argument, 0, 'a' },
+ { "title", 1, 0, 't' },
+ { "number-of-lines", 1, 0, 'l' },
+ { "colors", 1, 0, 'c' },
+ { "rest-are-files", no_argument, 0, '-' },
+ { "bash", no_argument, 0, OPT_BASH_MODE },
+ { "help", no_argument, 0, 'h' },
+ { 0, 0, 0, 0 }
+};
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;
+ char output_filename[BUFFER_SIZE];
+ char pattern[BUFFER_SIZE];
+ int c, k, l, n;
+ int cursor_position;
int error = 0, show_help = 0;
int rest_are_files = 0;
+ int key;
+ int current_focus_line, displayed_focus_line;
+ int colors[4];
int color_fg_modeline, color_bg_modeline;
int color_fg_highlight, color_bg_highlight;
+ char **lines, **labels;
+ int nb_lines;
+ struct hash_table_t *hash_table;
+
+ if(!isatty(STDIN_FILENO)) {
+ fprintf(stderr, "Selector: The standard input is not a tty.\n");
+ exit(EXIT_FAILURE);
+ }
+
color_fg_modeline = COLOR_WHITE;
color_bg_modeline = COLOR_BLACK;
color_fg_highlight = COLOR_BLACK;
setlocale(LC_ALL, "");
- strcpy(input_filename, "");
strcpy(output_filename, "");
- i = 1;
- while(!error && !show_help && i < argc && argv[i][0] == '-' && !rest_are_files) {
+ while (!rest_are_files &&
+ (c = getopt_long(argc, argv, "o:s:x:vwmqf:ibzdeat:l:c:-h",
+ long_options, NULL)) != -1) {
- if(strcmp(argv[i], "-o") == 0) {
- check_opt(argc, argv, i, 1, "<output filename>");
- strncpy(output_filename, argv[i+1], buffer_size);
- i += 2;
- }
+ switch(c) {
- else if(strcmp(argv[i], "-s") == 0) {
- check_opt(argc, argv, i, 1, "<pattern separator>");
- pattern_separator = argv[i+1][0];
- i += 2;
- }
+ case 'o':
+ strncpy(output_filename, optarg, BUFFER_SIZE);
+ break;
- else if(strcmp(argv[i], "-x") == 0) {
- check_opt(argc, argv, i, 1, "<label separator>");
- label_separator = argv[i+1][0];
- i += 2;
- }
+ case 's':
+ pattern_separator = optarg[0];
+ break;
+
+ case 'x':
+ label_separator = optarg[0];
+ break;
- else if(strcmp(argv[i], "-v") == 0) {
+ case 'v':
output_to_vt_buffer = 1;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-w") == 0) {
+ case 'w':
add_control_qs = 1;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-m") == 0) {
+ case 'm':
with_colors = 0;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-q") == 0) {
+ case 'q':
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;
- }
+ break;
- else if(strcmp(argv[i], "-i") == 0) {
+ case 'i':
inverse_order = 1;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-b") == 0) {
+ case 'b':
bash_history = 1;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-z") == 0) {
+ case 'z':
zsh_history = 1;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-d") == 0) {
+ case 'd':
remove_duplicates = 1;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-e") == 0) {
+ case 'e':
use_regexp = 1;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-a") == 0) {
+ case 'a':
case_sensitive = 1;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-t") == 0) {
- check_opt(argc, argv, i, 1, "<title>");
+ case 't':
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) {
+ title = safe_malloc((strlen(optarg) + 1) * sizeof(char));
+ strcpy(title, optarg);
+ break;
+
+ case 'l':
+ str_to_positive_integers(optarg, &nb_lines_max, 1);
+ break;
+
+ case 'c':
+ str_to_positive_integers(optarg, colors, 4);
+ color_fg_modeline = colors[0];
+ color_bg_modeline = colors[1];
+ color_fg_highlight = colors[2];
+ color_bg_highlight = colors[3];
+ break;
+
+ case '-':
rest_are_files = 1;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-h") == 0) {
+ case 'h':
show_help = 1;
- i++;
- }
+ break;
+
+ case OPT_BASH_MODE:
+ /* Same as -c 7,4,0,3 -q */
+ /* color_fg_modeline = 7; */
+ /* color_bg_modeline = 4; */
+ /* color_fg_highlight = 0; */
+ /* color_bg_highlight = 3; */
+ /* error_flash = 1; */
+ /* Same as -b -i -d -v -w */
+ bash_history = 1;
+ inverse_order = 1;
+ remove_duplicates = 1;
+ output_to_vt_buffer = 1;
+ add_control_qs = 1;
+ break;
- else {
- fprintf(stderr, "Unknown option %s.\n", argv[i]);
+ default:
error = 1;
+ break;
}
}
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);
+ if(error) {
+ usage(stderr);
+ exit(EXIT_FAILURE);
+ } else {
+ usage(stdout);
+ exit(EXIT_SUCCESS);
+ }
}
- char **lines = (char **) malloc(nb_lines_max * sizeof(char *));
+ lines = safe_malloc(nb_lines_max * sizeof(char *));
- int nb_lines = 0;
- int hash_table_size = nb_lines_max * 10;
- int *hash_table = 0;
+ nb_lines = 0;
if(remove_duplicates) {
- hash_table = new_hash_table(hash_table_size);
+ hash_table = new_hash_table(nb_lines_max * 10);
+ } else {
+ hash_table = 0;
}
- if(input_filename[0]) {
- read_file(input_filename,
- nb_lines_max, &nb_lines, lines,
- hash_table_size, hash_table);
+ while(optind < argc) {
+ read_file(hash_table,
+ argv[optind],
+ nb_lines_max, &nb_lines, lines);
+ optind++;
}
- while(i < argc) {
- read_file(argv[i],
- nb_lines_max, &nb_lines, lines,
- hash_table_size, hash_table);
- i++;
+ if(hash_table) {
+ free_hash_table(hash_table);
}
- free(hash_table);
-
- // Now remove the null strings
+ /* Now remove the null strings */
n = 0;
for(k = 0; k < nb_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;
+ for(l = 0; l < nb_lines / 2; l++) {
+ char *s = lines[nb_lines - 1 - l];
+ lines[nb_lines - 1 - l] = lines[l];
+ lines[l] = s;
}
}
- // Build the labels from the strings, take only the part before the
- // label_separator and transform control characters to printable
- // ones
+ /* Build the labels from the strings, take only the part before the
+ label_separator and transform control characters to printable
+ ones */
+
+ labels = safe_malloc(nb_lines * sizeof(char *));
- char **labels = (char **) malloc(nb_lines * sizeof(char *));
for(l = 0; l < nb_lines; l++) {
char *s, *t;
+ int e = 0;
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));
+
+ labels[l] = safe_malloc((e + 1) * sizeof(char));
t = lines[l];
s = labels[l];
while(*t && *t != label_separator) {
*s = '\0';
}
- char pattern[buffer_size];
pattern[0] = '\0';
- int cursor_position;
cursor_position = 0;
- //////////////////////////////////////////////////////////////////////
- // Here we start to display with curse
+ /* Here we start to display with curse */
initscr();
cbreak();
noecho();
- // nonl();
intrflush(stdscr, FALSE);
- // So that the arrow keys work
+ /* So that the arrow keys work */
keypad(stdscr, TRUE);
attr_error = A_STANDOUT;
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);
+ fprintf(stderr, "Selector: Color numbers have to be between 0 and %d.\n",
+ COLORS - 1);
+ exit(EXIT_FAILURE);
}
init_pair(1, color_fg_modeline, color_bg_modeline);
}
- int key;
- int current_focus_line = 0, displayed_focus_line = 0;
+ current_focus_line = 0;
+ displayed_focus_line = 0;
update_screen(¤t_focus_line, &displayed_focus_line,
0,
nb_lines, labels, cursor_position, pattern);
do {
+ int motion = 0;
key = getch();
- int motion = 0;
-
- if(key >= ' ' && key <= '~') { // Insert character
+ if(key >= ' ' && key <= '~') { /* Insert character */
insert_char(pattern, &cursor_position, key);
}
else if(key == KEY_BACKSPACE ||
- key == '\010' || // ^H
- key == '\177') { // ^?
+ key == '\010' || /* ^H */
+ key == '\177') { /* ^? */
backspace_char(pattern, &cursor_position);
}
else if(key == KEY_DC ||
- key == '\004') { // ^D
+ key == '\004') { /* ^D */
delete_char(pattern, &cursor_position);
}
}
else if(key == KEY_DOWN ||
- key == '\016') { // ^N
+ key == '\016') { /* ^N */
motion = 1;
}
else if(key == KEY_UP ||
- key == '\020') { // ^P
+ key == '\020') { /* ^P */
motion = -1;
}
else if(key == KEY_LEFT ||
- key == '\002') { // ^B
+ key == '\002') { /* ^B */
if(cursor_position > 0) cursor_position--;
else error_feedback();
}
else if(key == KEY_RIGHT ||
- key == '\006') { // ^F
+ key == '\006') { /* ^F */
if(pattern[cursor_position]) cursor_position++;
else error_feedback();
}
- else if(key == '\001') { // ^A
+ else if(key == '\001') { /* ^A */
cursor_position = 0;
}
- else if(key == '\005') { // ^E
+ else if(key == '\005') { /* ^E */
cursor_position = strlen(pattern);
}
- else if(key == '\022') { // ^R
+ else if(key == '\022') { /* ^R */
use_regexp = !use_regexp;
}
- else if(key == '\011') { // ^I
+ else if(key == '\011') { /* ^I */
case_sensitive = !case_sensitive;
}
- else if(key == '\025') { // ^U
+ else if(key == '\025') { /* ^U */
kill_before_cursor(pattern, &cursor_position);
}
- else if(key == '\013') { // ^K
+ 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
+ else if(key == '\014') { /* ^L */
+ /* I suspect that we may sometime mess up the display, so ^L is
+ here to force a full refresh */
clear();
}
motion,
nb_lines, labels, cursor_position, pattern);
- } while(key != '\007' && // ^G
- key != '\033' && // ^[ (escape)
+ } while(key != '\007' && /* ^G */
+ key != '\033' && /* ^[ (escape) */
key != '\n' &&
key != KEY_ENTER);
echo();
endwin();
- //////////////////////////////////////////////////////////////////////
- // Here we come back to standard display
+ /* Here we come back to standard display */
if((key == KEY_ENTER || key == '\n')) {
}
if(output_to_vt_buffer && t) {
- inject_into_tty_buffer(t);
+ inject_into_tty_buffer(t, add_control_qs);
}
if(output_filename[0]) {
}
fprintf(out, "\n");
} else {
- fprintf(stderr, "Can not open %s for writing.\n", output_filename);
- exit(1);
+ fprintf(stderr,
+ "Selector: Can not open %s for writing.\n",
+ output_filename);
+ exit(EXIT_FAILURE);
}
fclose(out);
}
free(lines);
free(title);
- exit(0);
+ exit(EXIT_SUCCESS);
}