translator.c

/*
 *  file:       translator.c
 *  date:       July, 2012
 *  purpose:    bites chain of symbols to chain of (symbol, symbol's class)
 *  author:     Nick K.
 */

#include "modules.h"

void translator(char chain[], struct transl_type translChain[])
{
    char symbol;
    int i = -1;

    while ( (symbol = chain[++i]) != '\0' ){
        translChain[i].symbol = symbol;
        if ( (symbol >= 'a' && symbol <= 'z') || (symbol >= 'A' && symbol <= 'Z') ){
            translChain[i].symbol_class = "letter";
            continue;
        }

        if (symbol >= '0' && symbol <= '9'){
            translChain[i].symbol_class = "digit";
            continue;
        }

        switch (symbol) {
            case ':':   translChain[i].symbol_class = "colon";
                    break;

            case '=':   translChain[i].symbol_class = "equals";
                    break;

            case ';':   translChain[i].symbol_class = "semicolon";
                    break;

            case '+':case '-':
                    translChain[i].symbol_class = "sign";
                    break;
            case '[':   translChain[i].symbol_class = "bracket_o";
                    break;
            case ']':   translChain[i].symbol_class = "bracket_c";
                    break;
            case ' ':   translChain[i].symbol_class = "space";
                    break;

            default:    translChain[i].symbol_class = "error";
                    break;
        }
    }

    translChain[i].symbol = '\0';
    translChain[i].symbol_class = '\0';

    return;
}