| 0,0 → 1,164 |
|---|
| /* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
| * All rights reserved. |
| * Copyright (c) 2008, Jiri Svoboda - All Rights Reserved |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * Redistributions of source code must retain the above copyright notice, this |
| * list of conditions and the following disclaimer. |
| * |
| * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * Neither the name of the original program's authors nor the names of its |
| * contributors may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <io/console.h> |
| #include <io/keycode.h> |
| #include <io/style.h> |
| #include <vfs/vfs.h> |
| #include <errno.h> |
| #include <bool.h> |
| |
| #include "config.h" |
| #include "util.h" |
| #include "scli.h" |
| #include "input.h" |
| #include "errors.h" |
| #include "exec.h" |
| |
| static void read_line(char *, int); |
| |
| /* Tokenizes input from console, sees if the first word is a built-in, if so |
| * invokes the built-in entry point (a[0]) passing all arguments in a[] to |
| * the handler */ |
| int tok_input(cliuser_t *usr) |
| { |
| char *cmd[WORD_MAX]; |
| int n = 0, i = 0; |
| int rc = 0; |
| char *tmp; |
| |
| if (NULL == usr->line) |
| return CL_EFAIL; |
| |
| tmp = str_dup(usr->line); |
| |
| cmd[n] = strtok(tmp, " "); |
| while (cmd[n] && n < WORD_MAX) { |
| cmd[++n] = strtok(NULL, " "); |
| } |
| |
| /* We have rubbish */ |
| if (NULL == cmd[0]) { |
| rc = CL_ENOENT; |
| goto finit; |
| } |
| |
| /* Its a builtin command ? */ |
| if ((i = (is_builtin(cmd[0]))) > -1) { |
| rc = run_builtin(i, cmd, usr); |
| goto finit; |
| /* Its a module ? */ |
| } else if ((i = (is_module(cmd[0]))) > -1) { |
| rc = run_module(i, cmd); |
| goto finit; |
| } |
| |
| /* See what try_exec thinks of it */ |
| rc = try_exec(cmd[0], cmd); |
| |
| finit: |
| if (NULL != usr->line) { |
| free(usr->line); |
| usr->line = (char *) NULL; |
| } |
| if (NULL != tmp) |
| free(tmp); |
| |
| return rc; |
| } |
| |
| static void read_line(char *buffer, int n) |
| { |
| console_event_t ev; |
| size_t offs, otmp; |
| wchar_t dec; |
| |
| offs = 0; |
| while (true) { |
| fflush(stdout); |
| if (!console_get_event(fphone(stdin), &ev)) |
| return; |
| |
| if (ev.type != KEY_PRESS) |
| continue; |
| |
| if (ev.key == KC_ENTER || ev.key == KC_NENTER) |
| break; |
| if (ev.key == KC_BACKSPACE) { |
| if (offs > 0) { |
| /* |
| * Back up until we reach valid start of |
| * character. |
| */ |
| while (offs > 0) { |
| --offs; otmp = offs; |
| dec = str_decode(buffer, &otmp, n); |
| if (dec != U_SPECIAL) |
| break; |
| } |
| putchar('\b'); |
| } |
| continue; |
| } |
| if (ev.c >= ' ') { |
| if (chr_encode(ev.c, buffer, &offs, n - 1) == EOK) |
| putchar(ev.c); |
| } |
| } |
| putchar('\n'); |
| buffer[offs] = '\0'; |
| } |
| |
| /* TODO: |
| * Implement something like editline() / readline(), if even |
| * just for command history and making arrows work. */ |
| void get_input(cliuser_t *usr) |
| { |
| char line[INPUT_MAX]; |
| |
| fflush(stdout); |
| console_set_style(fphone(stdout), STYLE_EMPHASIS); |
| printf("%s", usr->prompt); |
| fflush(stdout); |
| console_set_style(fphone(stdout), STYLE_NORMAL); |
| |
| read_line(line, INPUT_MAX); |
| /* Make sure we don't have rubbish or a C/R happy user */ |
| if (str_cmp(line, "") == 0 || str_cmp(line, "\n") == 0) |
| return; |
| usr->line = str_dup(line); |
| |
| return; |
| } |
| |