64 lines
1.2 KiB
C
64 lines
1.2 KiB
C
#include "CMDList.h"
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#include <stdlib.h>
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#include <string.h>
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// initilises a CMDList_t with all NULL pointers
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CMDList_t* CMDList_init()
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{
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CMDList_t *list = malloc(sizeof(CMDList_t));
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memset(list, 0, sizeof(CMDList_t));
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return list;
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}
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// free up the full tree from memory
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int CMDList_deinit(CMDList_t *list)
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{
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CMDList_t* chars[26]; //TODO: cast list to array
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for (int i = 0; i < 26; i++)
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{
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if (chars[i] != NULL)
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{
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CMDList_deinit(chars[i]);
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}
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}
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free(list);
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return 0;
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}
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// add a command in the command tree
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int CMDList_add(CMDList_t *list, CMD_t* cmd)
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{
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char* read_p = cmd;
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CMDList_t* list_p = list;
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while (
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(read_p != NULL)
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&& (*read_p != ' ') // space ends the command
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&& (*read_p != '\n') // end of line
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&& (*read_p != '\r') // end of line
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&& (*read_p != 0) // end of string
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&& (read_p - (char*)cmd < 500)
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)
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{
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char c = *read_p & (~0x20); // to uppercase
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if ((*read_p >= 'A') && (*read_p <= 'Z'))
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{
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read_p += (*read_p - 'A') * sizeof(CMDList_t*);
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if (*((CMDList_t**)read_p) == NULL)
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{
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read_p = malloc(sizeof(CMDList_t));
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}
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else
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{
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read_p = *((CMDList_t**)read_p);
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}
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}
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}
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}
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// search command in the tree
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int CMDList_get(CMDList_t *list, char* cmd);
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