*
*/
-/* 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)
+
*/
#define _GNU_SOURCE
#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>
-#define VERSION "1.0"
+#define VERSION "1.1"
-const int buffer_size = 4096;
+#define BUFFER_SIZE 4096
/* Yeah, global variables! */
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';
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 <= '~')) {
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",
+ fprintf(stderr, "Selector: Missing argument for %s, expecting %s.\n",
argv[n_opt], help);
- exit(1);
+ exit(EXIT_FAILURE);
}
}
int result = 0;
char *s;
+ printf("string_to_positive_integer string=\"%s\"\n", string);
if(*string) {
- for(s = string; *s; s++) {
+ for(s = string; *s && *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);
+ fprintf(stderr,
+ "Selector: Value `%s' is not a positive integer.\n",
+ string);
+ exit(EXIT_FAILURE);
}
return result;
}
}
+void print_help(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 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");
+}
+
/*********************************************************************/
-/* 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. */
+/* 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. */
+
+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;
-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;
+ 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. */
-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) */
+ 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) {
+ while(hash_table->entries[code] >= 0) {
/* There is a string with that code */
- if(strcmp(new_string, strings[hash_table[code]]) == 0) {
+ 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[code];
+ int result = hash_table->entries[code];
/* Put the new one */
- hash_table[code] = new_index;
+ 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;
+ 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;
+ 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) {
/*********************************************************************/
-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++;
/*********************************************************************/
-/* The value passed to this routine in current_focus_line is the index
- of the line we should have highlighted 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)
+ 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. */
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);
}
}
}
}
- /* 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 */
- 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--;
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++;
}
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);
/* 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) {
/*********************************************************************/
-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;
+
+ /* Remove the zsh history prefix */
+
+ 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;
+ }
- char raw_line[buffer_size];
+ 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;
+ }
- FILE *file = fopen(input_filename, "r");
+ (*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++;
+ exit(EXIT_FAILURE);
}
- /* 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 we got a line, we replace the carriage return by a \0 to
+ finish the string */
- 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;
- }
+ raw_line[eol] = '\0';
- (*nb_lines)++;
+ store_line(hash_table, raw_line + start,
+ nb_lines, lines);
start = eol + 1;
}
+
+ fclose(file);
}
/*********************************************************************/
-int main(int argc, char **argv) {
+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' },
+ { "input-file", 1, 0, 'f' },
+ { "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, '-' },
+ { "help", no_argument, 0, 'h' },
+ { 0, 0, 0, 0 }
+};
- if(!ttyname(STDIN_FILENO)) {
- fprintf(stderr, "The standard input is not a tty.\n");
- exit(1);
- }
+int main(int argc, char **argv) {
- char input_filename[buffer_size], output_filename[buffer_size];
- int i, k, l, n;
+ char input_filename[BUFFER_SIZE], output_filename[BUFFER_SIZE];
+ char c, *s;
+ char pattern[BUFFER_SIZE];
+ int 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 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;
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;
- else if(strcmp(argv[i], "-v") == 0) {
+ case 'x':
+ label_separator = optarg[0];
+ break;
+
+ 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++;
- }
+ break;
- 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;
- }
+ case 'f':
+ strncpy(input_filename, optarg, BUFFER_SIZE);
+ 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':
+ nb_lines_max = string_to_positive_integer(optarg);
+ break;
+
+ case 'c':
+ s = optarg;
+ color_fg_modeline = string_to_positive_integer(s);
+ while(*s && *s != ',') s++; if(*s == ',') { s++; }
+ color_bg_modeline = string_to_positive_integer(s);
+ while(*s && *s != ',') s++; if(*s == ',') { s++; }
+ color_fg_highlight = string_to_positive_integer(s);
+ while(*s && *s != ',') s++; if(*s == ',') { s++; }
+ color_bg_highlight = string_to_positive_integer(s);
+ break;
+
+ case '-':
rest_are_files = 1;
- i++;
- }
+ break;
- else if(strcmp(argv[i], "-h") == 0) {
+ case 'h':
show_help = 1;
- i++;
- }
+ 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) {
+ print_help(stderr);
+ exit(EXIT_FAILURE);
+ } else {
+ print_help(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);
+ read_file(hash_table,
+ input_filename,
+ nb_lines_max, &nb_lines, lines);
}
- while(i < argc) {
- read_file(argv[i],
- nb_lines_max, &nb_lines, lines,
- hash_table_size, hash_table);
- i++;
+ while(optind < argc) {
+ read_file(hash_table,
+ argv[optind],
+ nb_lines_max, &nb_lines, lines);
+ optind++;
}
- free(hash_table);
+ if(hash_table) {
+ free_hash_table(hash_table);
+ }
/* Now remove the null strings */
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 */
- char **labels = (char **) malloc(nb_lines * sizeof(char *));
+ labels = safe_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 */
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, "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 */
insert_char(pattern, &cursor_position, key);
}
}
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();
}
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);
}