X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?p=selector.git;a=blobdiff_plain;f=selector.c;h=eb8e22ff3cb73093c20b7b3c998026834999ba86;hp=2880b5f63009d9894d79eceeb66ea34792386d56;hb=d91fa6b4c3833c1b6d5ad3019bf83979f71aee27;hpb=298604bb3dcb60332e37ae3b66b746bad249e1ca diff --git a/selector.c b/selector.c index 2880b5f..eb8e22f 100644 --- a/selector.c +++ b/selector.c @@ -3,7 +3,7 @@ * 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 * * This file is part of selector. @@ -25,7 +25,7 @@ /* To use it as a super-history-search for bash: - selector -q -b -i -d -v -w -l ${HISTSIZE} <(history) + selector --bash <(history) */ @@ -35,16 +35,19 @@ #include #include #include +#include #include #include #include #include #include #include +#include +#include -#define VERSION "1.0" +#define VERSION "1.1.2" -const int buffer_size = 4096; +#define BUFFER_SIZE 4096 /* Yeah, global variables! */ @@ -65,16 +68,29 @@ int error_flash = 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'; 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 <= '~')) { @@ -89,33 +105,52 @@ void inject_into_tty_buffer(char *string) { /*********************************************************************/ -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() { @@ -126,62 +161,138 @@ 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 .\n"); + fprintf(out, "\n"); + fprintf(out, "Usage: selector [options] [ [ ...]]\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 -l ${HISTSIZE}\n"); + fprintf(out, " --, --rest-are-files\n"); + fprintf(out, " all following arguments are filenames\n"); + fprintf(out, " -t , --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 -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; +/* 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; + + 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; + 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; + code = code % hash_table->size; + start = code; - 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; + /* 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 table and return -1 */ - hash_table[code] = new_index; + hash_table->entries[code] = new_index; return -1; } @@ -197,7 +308,7 @@ typedef struct { 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) { @@ -224,14 +335,17 @@ void free_matcher(matcher_t *matcher) { } } -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; + 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; @@ -243,13 +357,16 @@ void initialize_matcher(int use_regexp, int case_sensitive, } } - 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'; @@ -266,7 +383,7 @@ void initialize_matcher(int use_regexp, int case_sensitive, 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++; } @@ -290,7 +407,7 @@ void backspace_char(char *buffer, int *position) { } 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) { @@ -321,15 +438,16 @@ void kill_after_cursor(char *buffer, int *position) { /*********************************************************************/ -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; @@ -339,15 +457,14 @@ int next_visible(int current_line, int nb_lines, char **lines, matcher_t *matche /*********************************************************************/ -/* 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. */ @@ -358,35 +475,43 @@ void update_screen(int *current_focus_line, int *displayed_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); + initialize_matcher(&matcher, use_regexp, case_sensitive, pattern); - 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"); - /* First, we find a visible line. */ + /* 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)) { + 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); } } @@ -405,7 +530,7 @@ void update_screen(int *current_focus_line, int *displayed_focus_line, } 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; } @@ -413,35 +538,38 @@ void update_screen(int *current_focus_line, int *displayed_focus_line, } } - /* 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++; } } @@ -450,10 +578,10 @@ void update_screen(int *current_focus_line, int *displayed_focus_line, /* 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) { + while(lines[l][k] && k < BUFFER_SIZE - 2 && k < console_width - 2) { buffer[k] = lines[l][k]; k++; } @@ -501,7 +629,11 @@ void update_screen(int *current_focus_line, int *displayed_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); @@ -524,7 +656,7 @@ void update_screen(int *current_focus_line, int *displayed_focus_line, /* 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); @@ -545,6 +677,9 @@ void update_screen(int *current_focus_line, int *displayed_focus_line, 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) { @@ -572,25 +707,77 @@ void update_screen(int *current_focus_line, int *displayed_focus_line, /*********************************************************************/ -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 */ + + if(zsh_history && *new_line == ':') { + while(*new_line && *new_line != ';') new_line++; + if(*new_line == ';') new_line++; + } - FILE *file = fopen(input_filename, "r"); + /* 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]; @@ -598,59 +785,29 @@ void read_file(const char *input_filename, 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 (max is %d characters):\n", buffer_size); + /* 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); + exit(EXIT_FAILURE); } - raw_line[eol] = '\0'; + /* If we got a line, we replace the carriage return by a \0 to + finish the string */ - char *t = raw_line + start; - - /* Remove the zsh history prefix */ - - if(zsh_history && *t == ':') { - while(*t && *t != ';') t++; - if(*t == ';') t++; - } - - /* Remove the bash history prefix */ - - if(bash_history) { - while(*t == ' ') t++; - while(*t >= '0' && *t <= '9') t++; - while(*t == ' ') t++; - } - - /* Check for duplicates with the hash table and insert the line in - the list if necessary */ - - int dup; - - if(hash_table) { - dup = test_and_add(t, *nb_lines, lines, hash_table, hash_table_size); - } else { - dup = -1; - } - - if(dup < 0) { - lines[*nb_lines] = (char *) malloc((strlen(t) + 1) * sizeof(char)); - strcpy(lines[*nb_lines], t); - } else { - /* The string was already in there, so we do not allocate a new - string but use the pointer to the first occurence of it */ - lines[*nb_lines] = lines[dup]; - lines[dup] = 0; - } + raw_line[eol] = '\0'; - (*nb_lines)++; + store_line(hash_table, raw_line + start, + nb_lines, lines); start = eol + 1; } @@ -660,21 +817,61 @@ void read_file(const char *input_filename, /*********************************************************************/ -int main(int argc, char **argv) { +/* 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 } +}; - 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 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; + char *bash_histsize; + + 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; @@ -682,183 +879,148 @@ int main(int argc, char **argv) { 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++; - } + 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; - } - - 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; + bash_histsize = getenv("HISTSIZE"); + if(bash_histsize) { + str_to_positive_integers(bash_histsize, &nb_lines_max, 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); } - char **lines = (char **) malloc(nb_lines_max * sizeof(char *)); + if(show_help) { + usage(stdout); + exit(EXIT_SUCCESS); + } - int nb_lines = 0; - int hash_table_size = nb_lines_max * 10; - int *hash_table = 0; + lines = safe_malloc(nb_lines_max * sizeof(char *)); + + 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 */ n = 0; @@ -871,10 +1033,10 @@ int main(int argc, char **argv) { 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; } } @@ -882,17 +1044,20 @@ int main(int argc, char **argv) { 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) { @@ -902,10 +1067,8 @@ int main(int argc, char **argv) { *s = '\0'; } - char pattern[buffer_size]; pattern[0] = '\0'; - int cursor_position; cursor_position = 0; /* Here we start to display with curse */ @@ -913,7 +1076,6 @@ int main(int argc, char **argv) { initscr(); cbreak(); noecho(); - /* nonl(); */ intrflush(stdscr, FALSE); /* So that the arrow keys work */ @@ -933,8 +1095,9 @@ int main(int argc, char **argv) { 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); @@ -948,19 +1111,18 @@ int main(int argc, char **argv) { } - 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); } @@ -1039,7 +1201,8 @@ int main(int argc, char **argv) { } 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(); } @@ -1072,7 +1235,7 @@ int main(int argc, char **argv) { } if(output_to_vt_buffer && t) { - inject_into_tty_buffer(t); + inject_into_tty_buffer(t, add_control_qs); } if(output_filename[0]) { @@ -1083,8 +1246,10 @@ int main(int argc, char **argv) { } 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); } @@ -1102,5 +1267,5 @@ int main(int argc, char **argv) { free(lines); free(title); - exit(0); + exit(EXIT_SUCCESS); }