commands.h

Go to the documentation of this file.

 
#ifndef C_CHAT_COMMANDS_H
#define C_CHAT_COMMANDS_H
 
#include "ui.h"
#include <string.h>
 
#define COMMAND_HANDLER(NAME, commands) \
void NAME##Handler (const char* command) { \
    char* listOfCommands = malloc(16); \
    memcpy(listOfCommands, "Known commands:", 16); \
    listOfCommands[15] = '\0'; \
    commands; \
    ui_errorMessage(listOfCommands); \
    free(listOfCommands); \
}
 
#define COMMAND(NAME, usage, next) \
{ \
    unsigned int listLength = strlen(listOfCommands); \
    unsigned int commandLength = strlen(usage); \
    char* listOfCommandsCopy = malloc(listLength + 1 + commandLength + 1); \
    memcpy(listOfCommandsCopy, listOfCommands, listLength); \
    listOfCommandsCopy[listLength] = '\n'; \
    memcpy(listOfCommandsCopy + listLength + 1, usage, commandLength); \
    listOfCommandsCopy[listLength + 1 + commandLength] = '\0'; \
    free(listOfCommands); \
    listOfCommands = listOfCommandsCopy; \
} \
if ( \
    strncmp(#NAME, command, strlen(#NAME)) == 0 && strlen(#NAME) == strlen(command) || \
    strncmp(#NAME, command, strlen(#NAME)) == 0 && strncmp(" ", command + strlen(#NAME), 1) == 0 \
) {\
    command = command + strlen(#NAME); \
    int commandLength##NAME = strlen(command); \
    while (commandLength##NAME > 0 && command[0] == ' ') { \
        command += 1; \
        commandLength##NAME = strlen(command); \
    } \
    next; \
    ui_errorMessage(usage); \
    return;\
};
 
#endif //C_CHAT_COMMANDS_H