* 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, 2011 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)
+ selector --bash <(history)
*/
#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 "1.1.3"
#define BUFFER_SIZE 4096
int case_sensitive = 0;
char *title = 0;
int error_flash = 0;
+int exclamation_negates = 0;
int attr_modeline, attr_focus_line, attr_error;
+/********************************************************************/
+
+/* 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) {
+void inject_into_tty_buffer(char *string, int add_control_qs) {
struct termios oldtio, newtio;
const char *k;
const char control_q = '\021';
/*********************************************************************/
-void check_opt(int argc, char **argv, int n_opt, int n, const char *help) {
- if(n_opt + n >= argc) {
- fprintf(stderr, "Selector: 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, "Selector: Value `%s' is not a positive integer.\n", string);
- exit(1);
+ s++;
}
-
- return result;
}
void error_feedback() {
}
}
+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, " -n, --exclamation-negates\n");
+ fprintf(out, " exclamation points in substring requires the string to be absent\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 -l ${HISTSIZE}\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. */
+#define MAGIC_HASH_MULTIPLIER 387433
-typedef struct {
+/* 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. */
+
+struct hash_table_t {
int size;
int *entries;
-} hash_table_t;
+};
-hash_table_t *new_hash_table(int size) {
+struct hash_table_t *new_hash_table(int size) {
int k;
- hash_table_t *hash_table;
+ struct hash_table_t *hash_table;
- hash_table = (hash_table_t *) malloc(sizeof(hash_table_t));
+ hash_table = safe_malloc(sizeof(struct hash_table_t));
hash_table->size = size;
- hash_table->entries = (int *) malloc(hash_table->size * sizeof(int));
+ hash_table->entries = safe_malloc(hash_table->size * sizeof(int));
for(k = 0; k < hash_table->size; k++) {
hash_table->entries[k] = -1;
return hash_table;
}
-void free_hash_table(hash_table_t *hash_table) {
+void free_hash_table(struct hash_table_t *hash_table) {
free(hash_table->entries);
free(hash_table);
}
string was not already in the table, returns -1. Otherwise, returns
the previous index it had. */
-int add_and_get_previous_index(hash_table_t *hash_table,
- const char *new_string, int new_index, char **strings) {
+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;
+ unsigned int code = 0, start;
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) */
+ hash_table->size is not a multiple of MAGIC_HASH_MULTIPLIER that
+ should be okay) */
for(k = 0; new_string[k]; k++) {
- code = code * 387433 + (unsigned int) (new_string[k]);
+ code = code * MAGIC_HASH_MULTIPLIER + (unsigned int) (new_string[k]);
}
code = code % hash_table->size;
+ start = code;
while(hash_table->entries[code] >= 0) {
/* There is a string with that code */
/* This collision was not the same string, let's move to the next
in the table */
code = (code + 1) % hash_table->size;
+ /* We came back to our original code, which means that the table
+ is full */
+ if(code == start) {
+ printf("Full hash table (that should not happen)\n");
+ exit(EXIT_FAILURE);
+ }
}
/* This string was not already in there, store the index in the
char *splitted_patterns, **patterns;
} matcher_t;
-int match(char *string, matcher_t *matcher) {
+int match(matcher_t *matcher, char *string) {
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;
+ if(exclamation_negates) {
+ for(n = 0; n < matcher->nb_patterns; n++) {
+ if(matcher->patterns[n][0] == '!') {
+ if(strstr(string, matcher->patterns[n] + 1) != 0) return 0;
+ } else {
+ if(strstr(string, matcher->patterns[n]) == 0) return 0;
+ }
+ }
+ } else {
+ 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;
+ if(exclamation_negates) {
+ for(n = 0; n < matcher->nb_patterns; n++) {
+ if(matcher->patterns[n][0] == '!') {
+ if(strcasestr(string, matcher->patterns[n] + 1) != 0) return 0;
+ } else {
+ if(strcasestr(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;
}
}
-void initialize_matcher(int use_regexp, int case_sensitive,
- matcher_t *matcher, const char *pattern) {
+void initialize_matcher(matcher_t *matcher,
+ int use_regexp, int case_sensitive,
+ const char *pattern) {
const char *s;
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 previous_visible(int current_line, int nb_lines, char **lines, matcher_t *matcher) {
+int previous_visible(int current_line, char **lines, matcher_t *matcher) {
int line = current_line - 1;
- while(line >= 0 && !match(lines[line], matcher)) line--;
+ while(line >= 0 && !match(matcher, lines[line])) 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++;
+ while(line < nb_lines && !match(matcher, lines[line])) line++;
if(line < nb_lines)
return line;
int nb_printed_lines = 0;
int cursor_x;
- initialize_matcher(use_regexp, case_sensitive, &matcher, pattern);
+ initialize_matcher(&matcher, use_regexp, case_sensitive, pattern);
console_width = getmaxx(stdscr);
console_height = getmaxy(stdscr);
else if(nb_lines > 0) {
int new_focus_line;
- if(match(lines[*current_focus_line], &matcher)) {
+ if(match(&matcher, lines[*current_focus_line])) {
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, lines, &matcher);
}
}
} 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);
+ l = previous_visible(l, lines, &matcher);
if(l >= 0) {
new_focus_line = l;
}
}
}
- /* 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
+ /* 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--;
- while(first_line > 0 && !match(lines[first_line], &matcher)) {
+ while(first_line > 0 && !match(&matcher, lines[first_line])) {
first_line--;
}
- if(match(lines[first_line], &matcher)) {
+ if(match(&matcher, lines[first_line])) {
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)) {
+ while(last_line < nb_lines - 1 && !match(&matcher, lines[last_line])) {
last_line++;
}
- if(match(lines[last_line], &matcher)) {
+ if(match(&matcher, lines[last_line])) {
nb_match++;
}
}
/* Now we display them */
for(l = first_line; l <= last_line; l++) {
- if(match(lines[l], &matcher)) {
+ if(match(&matcher, lines[l])) {
int k = 0;
while(lines[l][k] && k < BUFFER_SIZE - 2 && k < console_width - 2) {
k++;
}
- /* We fill the rest of the line with blanks if this is the
- highlighted line */
+ /* Highlight 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 {
+ buffer[k++] = '\n';
+ buffer[k++] = '\0';
+ /* clrtoeol(); */
addnstr(buffer, console_width);
}
/*********************************************************************/
-void store_line(hash_table_t *hash_table,
+void store_line(struct hash_table_t *hash_table,
const char *new_line,
int *nb_lines, char **lines) {
int dup;
}
if(dup < 0) {
- lines[*nb_lines] = (char *) malloc((strlen(new_line) + 1) * sizeof(char));
+ 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
(*nb_lines)++;
}
-void read_file(hash_table_t *hash_table,
+void read_file(struct hash_table_t *hash_table,
const char *input_filename,
int nb_lines_max, int *nb_lines, char **lines) {
file = fopen(input_filename, "r");
if(!file) {
- fprintf(stderr, "Selector: Can not open `%s'.\n", input_filename);
- exit(1);
+ fprintf(stderr, "selector: Can not open `%s'.\n", input_filename);
+ exit(EXIT_FAILURE);
}
start = 0;
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, "selector: Line too long (max is %d characters):\n",
+ BUFFER_SIZE);
+ fprintf(stderr, "%s", raw_line);
fprintf(stderr, "\n");
- exit(1);
+ exit(EXIT_FAILURE);
}
/* If we got a line, we replace the carriage return by a \0 to
/*********************************************************************/
+/* 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' },
+ { "bash", no_argument, 0, OPT_BASH_MODE },
+ { "help", no_argument, 0, 'h' },
+ { 0, 0, 0, 0 }
+};
+
int main(int argc, char **argv) {
- char input_filename[BUFFER_SIZE], output_filename[BUFFER_SIZE];
+ char output_filename[BUFFER_SIZE];
char pattern[BUFFER_SIZE];
- int i, k, l, n;
+ int c, k, l, n;
int cursor_position;
- int error = 0, show_help = 0;
- int rest_are_files = 0;
+ int error = 0, show_help = 0, done = 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;
- hash_table_t *hash_table;
+ struct hash_table_t *hash_table;
+ char *bash_histsize;
- if(!ttyname(STDIN_FILENO)) {
- fprintf(stderr, "Selector: The standard input is not a tty.\n");
- exit(1);
+ if(!isatty(STDIN_FILENO)) {
+ fprintf(stderr, "selector: The standard input is not a tty.\n");
+ exit(EXIT_FAILURE);
}
color_fg_modeline = COLOR_WHITE;
setlocale(LC_ALL, "");
- strcpy(input_filename, "");
strcpy(output_filename, "");
- i = 1;
- while(!error && !show_help && i < argc && argv[i][0] == '-' && !rest_are_files) {
+ while ((c = getopt_long(argc, argv, "o:s:x:vwmqf:ibzdeant: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++;
- }
-
- 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;
- }
+ break;
- 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;
- }
+ case 'n':
+ exclamation_negates = 1;
+ break;
- else if(strcmp(argv[i], "--") == 0) {
- rest_are_files = 1;
- i++;
- }
-
- else if(strcmp(argv[i], "-h") == 0) {
+ case 't':
+ free(title);
+ 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 '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;
+ bash_histsize = getenv("HISTSIZE");
+ if(bash_histsize) {
+ str_to_positive_integers(bash_histsize, &nb_lines_max, 1);
+ }
+ break;
- else {
- fprintf(stderr, "Selector: Unknown option %s.\n", argv[i]);
+ default:
error = 1;
+ break;
}
}
- if(show_help || error) {
- FILE *out;
- if(show_help) {
- out = stdout;
- } else {
- out = stderr;
- }
+ if(error) {
+ usage(stderr);
+ exit(EXIT_FAILURE);
+ }
- fprintf(out, "Selector version %s-R%s\n", VERSION, REVISION_NUMBER);
- fprintf(out, "Written by Francois Fleuret <francois@fleuret.org>.\n");
- fprintf(out, "\n");
- fprintf(out, "Usage: %s [options] [<filename1> [<filename2> ...]]\n", argv[0]);
- fprintf(out, "\n");
- fprintf(out, " -h show this help\n");
- fprintf(out, " -v inject the selected line in the tty\n");
- fprintf(out, " -w quote control characters with ^Qs when using -v\n");
- fprintf(out, " -d remove duplicated lines\n");
- fprintf(out, " -b remove the bash history line prefix\n");
- fprintf(out, " -z remove the zsh history line prefix\n");
- fprintf(out, " -i invert the order of lines\n");
- fprintf(out, " -e start in regexp mode\n");
- fprintf(out, " -a start in case sensitive mode\n");
- fprintf(out, " -m monochrome mode\n");
- fprintf(out, " -q make a flash instead of a beep on an edition error\n");
- fprintf(out, " -- all following arguments are filenames\n");
- fprintf(out, " -t <title>\n");
- fprintf(out, " add a title in the modeline\n");
- fprintf(out, " -c <fg modeline> <bg modeline> <fg highlight> <bg highlight>\n");
- fprintf(out, " set the display colors\n");
- fprintf(out, " -o <output filename>\n");
- fprintf(out, " set a file to write the selected line to\n");
- fprintf(out, " -s <pattern separator>\n");
- fprintf(out, " set the symbol to separate substrings in the pattern\n");
- fprintf(out, " -x <label separator>\n");
- fprintf(out, " set the symbol to terminate the label\n");
- fprintf(out, " -l <max number of lines>\n");
- fprintf(out, " set the maximum number of lines to take into account\n");
- fprintf(out, "\n");
- exit(error);
+ if(show_help) {
+ usage(stdout);
+ exit(EXIT_SUCCESS);
}
- lines = (char **) malloc(nb_lines_max * sizeof(char *));
+ lines = safe_malloc(nb_lines_max * sizeof(char *));
nb_lines = 0;
hash_table = 0;
}
- if(input_filename[0]) {
+ while(optind < argc) {
read_file(hash_table,
- input_filename,
+ argv[optind],
nb_lines_max, &nb_lines, lines);
- }
-
- while(i < argc) {
- read_file(hash_table,
- argv[i],
- nb_lines_max, &nb_lines, lines);
- i++;
+ optind++;
}
if(hash_table) {
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;
}
}
label_separator and transform control characters to printable
ones */
- labels = (char **) malloc(nb_lines * sizeof(char *));
+ labels = safe_malloc(nb_lines * sizeof(char *));
for(l = 0; l < nb_lines; l++) {
char *s, *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) {
initscr();
cbreak();
noecho();
- /* nonl(); */
intrflush(stdscr, FALSE);
/* So that the arrow keys work */
color_bg_highlight < 0 || color_bg_highlight >= COLORS) {
echo();
endwin();
- fprintf(stderr, "Selector: 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);
}
else if(key == '\014') { /* ^L */
- /* I suspect that we may sometime mess up the display */
+ /* I suspect that we may sometime mess up the display, so ^L is
+ here to force a full refresh */
clear();
}
+ else if(key == '\007' || /* ^G */
+ key == '\033' || /* ^[ (escape) */
+ key == '\n' ||
+ key == KEY_ENTER) {
+ done = 1;
+ }
+
+ else if(key == KEY_RESIZE || key == -1) {
+ /* Do nothing when the tty is resized */
+ }
+
+ else {
+ /* Unknown key */
+ error_feedback();
+ }
+
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);
+ } while(!done);
echo();
endwin();
}
if(output_to_vt_buffer && t) {
- inject_into_tty_buffer(t);
+ inject_into_tty_buffer(t, add_control_qs);
}
if(output_filename[0]) {
FILE *out = fopen(output_filename, "w");
if(out) {
if(t) {
- fprintf(out, t);
+ fprintf(out, "%s", t);
}
fprintf(out, "\n");
} else {
- fprintf(stderr, "Selector: 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);
}
projects / selector.git / blobdiff