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/*
* UNG's Not GNU
*
* Copyright (c) 2011-2017, Jakob Kaivo <jkk@ung.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "ed.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void ed_error(const char *fmt, ...)
{
if (ed_state.help) {
free(ed_state.help);
}
va_list ap, ap2;
va_start(ap, fmt);
va_copy(ap2, ap);
size_t n = vsnprintf(NULL, 0, fmt, ap);
ed_state.help = calloc(n + 2, 1);
if (ed_state.help == NULL) {
fprintf(stderr, "ed: Out of memory\n");
exit(1);
}
vsnprintf(ed_state.help, n + 1, fmt, ap2);
va_end(ap);
va_end(ap2);
puts("?");
if (ed_state.help_mode) {
puts(ed_state.help);
}
}
void ed_filename(intmax_t start, intmax_t end, const char *arg)
{
(void)start; (void)end;
if (ed_state.filename) {
free(ed_state.filename);
}
ed_state.filename = strdup(arg);
}
void ed_help(intmax_t start, intmax_t end, const char *arg)
{
(void)start; (void)end; (void)arg;
if (ed_state.help) {
puts(ed_state.help);
}
}
void ed_help_mode(intmax_t start, intmax_t end, const char *arg)
{
ed_state.help_mode = !ed_state.help_mode;
if (ed_state.help_mode) {
ed_help(start, end, arg);
}
}
void ed_prompt(intmax_t start, intmax_t end, const char *arg)
{
(void)start; (void)end; (void)arg;
if (ed_state.prompt == NULL) {
ed_state.prompt = "*";
}
ed_state.prompt_mode = !ed_state.prompt_mode;
}
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