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3004 svoboda 1 
/*
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 * Copyright (c) 2008 Jiri Svoboda
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup cli cli
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 * @brief   Trivial command-line interface for running programs.
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 * @{
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 */
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/**
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 * @file
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <task.h>
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#define LINE_BUFFER_SIZE 128
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static char line_buffer[LINE_BUFFER_SIZE];
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#define MAX_ARGS 16
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static char *argv_buf[MAX_ARGS + 1];
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static void read_line(char *buffer, int n)
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{
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    char c;
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    int chars;
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    printf("> ");
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    chars = 0;
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    while (chars < n - 1) {
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        c = getchar();
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        if (c < 0) exit(0);
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        if (c == '\n') break;
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        if (c == '\b') {
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            if (chars > 0) {
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                putchar('\b');
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                --chars;
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            }
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            continue;
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        }
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        putchar(c);
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        buffer[chars++] = c;
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    }
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    putchar('\n');
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    buffer[chars] = '\0';
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}
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static void program_run(void)
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{
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    char *p;
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    int n;
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    p = line_buffer;
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    n = 0;
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    while (n < MAX_ARGS) {
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        argv_buf[n++] = p;
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        p = strchr(p, ' ');
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        if (p == NULL) break;
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        *p++ = '\0';
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    }
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    argv_buf[n] = NULL;
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    printf("spawn task '%s' with %d args\n", argv_buf[0], n);
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    printf("args:");
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    int i;
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    for (i = 0; i < n; ++i) {
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        printf(" '%s'", argv_buf[i]);
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    }
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    printf("\n");
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    task_spawn_ex(argv_buf[0], argv_buf);
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}
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int main(int argc, char *argv[])
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{
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    printf("This is CLI\n");
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    while (1) {
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        read_line(line_buffer, LINE_BUFFER_SIZE);
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        printf("'%s'\n", line_buffer);
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        if (strcmp(line_buffer, "exit") == 0)
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            break;
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        if (line_buffer[0] != '\0')
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        program_run();
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    }
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    printf("Bye\n");
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    return 0;
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}
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/** @}
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 */
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