128 lines
2.4 KiB
C
128 lines
2.4 KiB
C
/* MSPDebug - debugging tool for MSP430 MCUs
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* Copyright (C) 2009-2012 Daniel Beer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#ifdef USE_READLINE
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#include <readline/readline.h>
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#include <readline/history.h>
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#endif
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#include "input_console.h"
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#include "util.h"
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#ifndef USE_READLINE
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#define LINE_BUF_SIZE 128
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static char *readline(const char *prompt)
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{
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char *buf = malloc(LINE_BUF_SIZE);
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if (!buf) {
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fprintf(stdout, "readline: can't allocate memory: %s\n",
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last_error());
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return NULL;
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}
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for (;;) {
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printf("%s", prompt);
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fflush(stdout);
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if (fgets(buf, LINE_BUF_SIZE, stdin)) {
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int len = strlen(buf);
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while (len > 0 && isspace(buf[len - 1]))
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len--;
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buf[len] = 0;
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return buf;
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}
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if (feof(stdin))
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break;
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printf("\n");
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}
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free(buf);
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return NULL;
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}
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#define add_history(x)
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#endif
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static int console_init(void)
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{
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return 0;
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}
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static void console_exit(void) { }
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static int console_read_command(char *out, int max_len)
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{
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char *buf = readline("(mspdebug) ");
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if (!buf) {
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printf("\n");
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return 1;
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}
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if (*buf)
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add_history(buf);
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strncpy(out, buf, max_len);
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out[max_len - 1] = 0;
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free(buf);
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return 0;
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}
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static int console_prompt_abort(const char *message)
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{
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char buf[32];
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for (;;) {
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printf("%s ", message);
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fflush(stdout);
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if (!fgets(buf, sizeof(buf), stdin)) {
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printf("\n");
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return 1;
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}
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if (toupper(buf[0]) == 'Y')
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return 0;
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if (toupper(buf[0]) == 'N')
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return 1;
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printf("Please answer \"y\" or \"n\".\n");
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}
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return 0;
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}
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const struct input_interface input_console = {
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.init = console_init,
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.exit = console_exit,
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.read_command = console_read_command,
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.prompt_abort = console_prompt_abort
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};
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