picrin/contrib/30.readline/src/readline.c

275 lines
5.5 KiB
C

/*
cc -g test.c -o test -ledit -ltermcap
*/
/* This will include all our libedit functions. If you use C++ don't
forget to use the C++ extern "C" to get it to compile.
*/
#include "picrin.h"
#include <editline/readline.h>
static pic_value
pic_rl_readline(pic_state *pic)
{
char *prompt, *result;
pic_get_args(pic, "z", &prompt);
result = readline(prompt);
if(result)
return pic_obj_value(pic_make_str_cstr(pic, result));
else
return pic_eof_object();
}
static pic_value
pic_rl_history_length(pic_state *pic)
{
pic_get_args(pic, "");
return pic_int_value(history_get_history_state()->length);
}
static pic_value
pic_rl_add_history(pic_state *pic)
{
char *line;
pic_get_args(pic, "z", &line);
add_history(line);
return pic_undef_value();
}
static pic_value
pic_rl_stifle_history(pic_state *pic)
{
int i;
pic_get_args(pic, "i", &i);
stifle_history(i);
return pic_undef_value();
}
static pic_value
pic_rl_unstifle_history(pic_state *pic)
{
pic_get_args(pic, "");
unstifle_history();
return pic_undef_value();
}
static pic_value
pic_rl_history_is_stifled(pic_state *pic)
{
pic_get_args(pic, "");
return pic_bool_value(history_is_stifled());
}
static pic_value
pic_rl_where_history(pic_state *pic)
{
pic_get_args(pic, "");
return pic_int_value(where_history());
}
static pic_value
pic_rl_current_history(pic_state *pic)
{
pic_get_args(pic, "");
return pic_obj_value(pic_make_str_cstr(pic, current_history()->line));
}
static pic_value
pic_rl_history_get(pic_state *pic)
{
int i;
HIST_ENTRY *e;
pic_get_args(pic, "i", &i);
e = history_get(i);
return e ? pic_obj_value(pic_make_str_cstr(pic, e->line))
: pic_false_value();
}
static pic_value
pic_rl_remove_history(pic_state *pic)
{
int i;
HIST_ENTRY *e;
pic_get_args(pic, "i", &i);
e = remove_history(i);
return e ? pic_obj_value(pic_make_str_cstr(pic, e->line))
: pic_false_value();
}
static pic_value
pic_rl_clear_history(pic_state *pic)
{
pic_get_args(pic, "");
clear_history();
return pic_undef_value();
}
static pic_value
pic_rl_history_set_pos(pic_state *pic)
{
int i;
pic_get_args(pic, "i", &i);
return pic_int_value(history_set_pos(i));
}
static pic_value
pic_rl_previous_history(pic_state *pic)
{
HIST_ENTRY *e;
pic_get_args(pic, "");
e = previous_history();
return e ? pic_obj_value(pic_make_str_cstr(pic, e->line))
: pic_false_value();
}
static pic_value
pic_rl_next_history(pic_state *pic)
{
HIST_ENTRY *e;
pic_get_args(pic, "");
e = next_history();
return e ? pic_obj_value(pic_make_str_cstr(pic, e->line))
: pic_false_value();
}
static pic_value
pic_rl_history_search(pic_state *pic)
{
char *key;
int direction, pos, argc;
argc = pic_get_args(pic, "zi|i", &key, &direction, &pos);
if(argc == 2)
return pic_int_value(history_search(key, direction));
else
return pic_int_value(history_search_pos(key, direction, pos));
}
static pic_value
pic_rl_history_search_prefix(pic_state *pic)
{
char *key;
int direction;
pic_get_args(pic, "zi", &key, &direction);
return pic_int_value(history_search_prefix(key, direction));
}
static pic_value
pic_rl_read_history(pic_state *pic)
{
char *filename;
pic_get_args(pic, "z", &filename);
if(read_history(filename))
pic_errorf(pic, "cannot read history file : %s", filename);
return pic_undef_value();
}
static pic_value
pic_rl_write_history(pic_state *pic)
{
char *filename;
pic_get_args(pic, "z", &filename);
if(write_history(filename))
pic_errorf(pic, "cannot write history file: %s", filename);
return pic_undef_value();
}
static pic_value
pic_rl_truncate_file(pic_state *pic)
{
char *filename;
int i;
pic_get_args(pic, "zi", &filename, &i);
history_truncate_file(filename, i);
return pic_undef_value();
}
static pic_value
pic_rl_history_expand(pic_state *pic)
{
char *input, *result;
int status;
pic_get_args(pic, "z", &input);
status = history_expand(input, &result);
if(status == -1 || status == 2)
pic_errorf(pic, "%s\n", result);
return pic_obj_value(pic_make_str_cstr(pic, result));
}
void
pic_init_readline(pic_state *pic){
using_history();
pic_deflibrary (pic, "(picrin readline)") {
pic_defun(pic, "readline", pic_rl_readline);
}
pic_deflibrary (pic, "(picrin readline history)") {
/* pic_defun(pic, "history-offset", pic_rl_history_offset); */
pic_defun(pic, "history-length", pic_rl_history_length);
pic_defun(pic, "add-history", pic_rl_add_history);
pic_defun(pic, "stifle-history", pic_rl_stifle_history);
pic_defun(pic, "unstifle-history", pic_rl_unstifle_history);
pic_defun(pic, "history-stifled?", pic_rl_history_is_stifled);
pic_defun(pic, "where-history", pic_rl_where_history);
pic_defun(pic, "current-history", pic_rl_current_history);
pic_defun(pic, "history-get", pic_rl_history_get);
pic_defun(pic, "clear-history", pic_rl_clear_history);
pic_defun(pic, "remove-history", pic_rl_remove_history);
pic_defun(pic, "history-set-pos", pic_rl_history_set_pos);
pic_defun(pic, "previous-history", pic_rl_previous_history);
pic_defun(pic, "next-history", pic_rl_next_history);
pic_defun(pic, "history-search", pic_rl_history_search);
pic_defun(pic, "history-search-prefix", pic_rl_history_search_prefix);
pic_defun(pic, "read-history", pic_rl_read_history);
pic_defun(pic, "write-history", pic_rl_write_history);
pic_defun(pic, "truncate-file", pic_rl_truncate_file);
pic_defun(pic, "history-expand", pic_rl_history_expand);
}
}