158 lines
2.6 KiB
C
158 lines
2.6 KiB
C
#include "CLI.h"
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "../FIFOBuff/FIFOBuffChar.h"
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CLI_lineOutFn CLI_lineOut;
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CMDList_t* CMDList;
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FIFOBuffChar_t* FIFO;
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// initilize and register the lineout print function
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bool CLI_init(CLI_lineOutFn lineOut, CMDList_t* cmdList)
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{
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CLI_lineOut = lineOut;
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CMDList = cmdList;
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FIFO = FIFOBuffChar_create();
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if (CLI_lineOut != NULL)
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{
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(*CLI_lineOut)(">");
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(*CLI_lineOut)(" ");
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}
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return true;
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}
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bool CLI_deinit()
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{
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CLI_lineOut = NULL;
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CMDList = NULL;
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FIFOBuffChar_delete(FIFO);
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return true;
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}
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char* fifoToString(FIFOBuffChar_t* fifo)
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{
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char* out = malloc(fifo->size + 1);
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char* write_p = out;
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for (int i = fifo->size; i > 0; i--)
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{
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FIFOBuffChar_get(fifo, write_p);
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write_p++;
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}
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*write_p = 0;
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return out;
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}
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int tryExecute(FIFOBuffChar_t* fifo)
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{
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char* line = fifoToString(fifo);
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CMD_t* cmd = CMDList_get(CMDList, line);
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if (cmd != NULL)
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{
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(*(cmd->fn))(line);
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if (CLI_lineOut != NULL)
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{
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(*CLI_lineOut)(">");
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(*CLI_lineOut)(" ");
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}
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return true;
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}
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else
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{
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if (CLI_lineOut != NULL)
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{
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char err[100];
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sprintf(&err[0], "command not found: %s\n> ", line);
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for (int i=0; err[i] != 0; i++)
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{
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char c[2] = {err[i], 0};
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(*CLI_lineOut)(&c[0]);
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}
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}
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return false;
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}
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}
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// to recive a single caracter
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bool CLI_charIn(char c)
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{
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bool ok = true;
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if ((c >= 'a') && (c <= 'z'))
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{
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c &= (~0x20); // convert to uppercase
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}
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if ( //TODO: update list of accepted characters
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((c >= 'A') && (c <= 'Z'))
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|| ((c >= '0') && (c <= '9'))
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|| (c == ' ')
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|| (c == '-')
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|| (c == '_')
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)
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{
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FIFOBuffChar_put(FIFO, c); // save char in buffer
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if (CLI_lineOut != NULL)
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{ // echo to terminal
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(*CLI_lineOut)(&c);
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}
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}
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else
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{
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char str[100];
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switch (c)
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{
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case '\n':
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case '\r':
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if (CLI_lineOut != NULL)
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{ // echo to terminal
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(*CLI_lineOut)(&c);
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}
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FIFOBuffChar_t* fifo = FIFO;
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FIFO = FIFOBuffChar_create();
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ok = tryExecute(fifo);
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FIFOBuffChar_delete(fifo);
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break;
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case 127: // backspace
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if (FIFOBuffChar_pop(FIFO))
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{
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(*CLI_lineOut)("\x1b");
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(*CLI_lineOut)("[");
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(*CLI_lineOut)("D");
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}
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break;
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case 27: // escape (start for arrow keys)
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sprintf(&str[0], "\ninvlid char: ESC - (%i)\n", c);
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for (int i=0; str[i] != 0; i++)
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{
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char ch[2] = {str[i], 0};
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(*CLI_lineOut)(&ch[0]);
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}
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break;
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default:
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sprintf(&str[0], "\ninvlid char: '%c' - (%i)\n", c, c);
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for (int i=0; str[i] != 0; i++)
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{
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char ch[2] = {str[i], 0};
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(*CLI_lineOut)(&ch[0]);
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}
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break;
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}
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}
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return ok;
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}
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