* selector is a simple command line utility for selection of strings
* with a dynamic pattern-matching.
*
- * Copyright (c) 2009, 2010 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 --bash -l ${HISTSIZE} <(history)
+ selector --bash <(history)
*/
#include <getopt.h>
#include <limits.h>
-#define VERSION "1.1.1"
+#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;
return;
} else {
fprintf(stderr,
- "Selector: Missing value in `%s'.\n", string);
+ "selector: Missing value in `%s'.\n", string);
exit(EXIT_FAILURE);
}
}
gotone = 0;
} else {
fprintf(stderr,
- "Selector: Too many values in `%s'.\n", string);
+ "selector: Too many values in `%s'.\n", string);
exit(EXIT_FAILURE);
}
} else {
fprintf(stderr,
- "Selector: Empty value in `%s'.\n", string);
+ "selector: Empty value in `%s'.\n", string);
exit(EXIT_FAILURE);
}
} else {
fprintf(stderr,
- "Selector: Syntax error in `%s'.\n", string);
+ "selector: Syntax error in `%s'.\n", string);
exit(EXIT_FAILURE);
}
s++;
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\n");
- fprintf(out, " --, --rest-are-files\n");
- fprintf(out, " all following arguments are filenames\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");
/* A quick and dirty hash table */
+#define MAGIC_HASH_MULTIPLIER 387433
+
/* 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. */
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;
/*********************************************************************/
-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 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);
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;
}
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);
}
file = fopen(input_filename, "r");
if(!file) {
- fprintf(stderr, "Selector: Can not open `%s'.\n", input_filename);
+ fprintf(stderr, "selector: Can not open `%s'.\n", input_filename);
exit(EXIT_FAILURE);
}
if(eol == BUFFER_SIZE) {
raw_line[BUFFER_SIZE - 1] = '\0';
- fprintf(stderr, "Selector: Line too long (max is %d characters):\n",
+ fprintf(stderr, "selector: Line too long (max is %d characters):\n",
BUFFER_SIZE);
- fprintf(stderr, raw_line);
+ fprintf(stderr, "%s", raw_line);
fprintf(stderr, "\n");
exit(EXIT_FAILURE);
}
{ "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 }
char pattern[BUFFER_SIZE];
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;
char **lines, **labels;
int nb_lines;
struct hash_table_t *hash_table;
+ char *bash_histsize;
if(!isatty(STDIN_FILENO)) {
- fprintf(stderr, "Selector: The standard input is not a tty.\n");
+ fprintf(stderr, "selector: The standard input is not a tty.\n");
exit(EXIT_FAILURE);
}
strcpy(output_filename, "");
- while (!rest_are_files &&
- (c = getopt_long(argc, argv, "o:s:x:vwmqf:ibzdeat:l:c:-h",
+ while ((c = getopt_long(argc, argv, "o:s:x:vwmqf:ibzdeant:l:c:-h",
long_options, NULL)) != -1) {
switch(c) {
case_sensitive = 1;
break;
+ case 'n':
+ exclamation_negates = 1;
+ break;
+
case 't':
free(title);
title = safe_malloc((strlen(optarg) + 1) * sizeof(char));
color_bg_highlight = colors[3];
break;
- case '-':
- rest_are_files = 1;
- break;
-
case 'h':
show_help = 1;
break;
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;
default:
}
}
- if(show_help || error) {
- if(error) {
- usage(stderr);
- exit(EXIT_FAILURE);
- } else {
- usage(stdout);
- exit(EXIT_SUCCESS);
- }
+ if(error) {
+ usage(stderr);
+ exit(EXIT_FAILURE);
+ }
+
+ if(show_help) {
+ usage(stdout);
+ exit(EXIT_SUCCESS);
}
lines = safe_malloc(nb_lines_max * sizeof(char *));
color_bg_highlight < 0 || color_bg_highlight >= COLORS) {
echo();
endwin();
- fprintf(stderr, "Selector: Color numbers have to be between 0 and %d.\n",
+ fprintf(stderr, "selector: Color numbers have to be between 0 and %d.\n",
COLORS - 1);
exit(EXIT_FAILURE);
}
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();
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",
+ "selector: Can not open %s for writing.\n",
output_filename);
exit(EXIT_FAILURE);
}
projects / selector.git / blobdiff