Method getToken

src/e9tool/e9parser.cpp:461–665

* Get the next token. */

 * Get the next token.
 */
int Parser::getToken()
{
    prev = pos;
    if (peek != TOKEN_ERROR)
    {
        int t = peek;
        peek = TOKEN_ERROR;
        return t;
    }
    char c = buf[pos];
    while (isspace(c))
        c = buf[++pos];
    
    // Operators:
    switch (c)
    {
        case '\0':
            strcpy(s, "<end-of-input>");
            return TOKEN_EOF;
        case '[': case ']': case '@': case ',': case '(': case ')':
        case '&': case '.': case ':': case '+': case '{': case '}':
        case '*': case '|': case '~': case '^':
            s[0] = c; s[1] = '\0';
            pos++;
            switch (c)
            {
                case '&': case '|': case '.':
                    if (buf[pos] == c)
                    {
                        s[1] = c; s[2] = '\0';
                        pos++;
                    }
                    break;
                default:
                    break;
            }
            return getTokenFromName(s);
        case '!': case '<': case '>': case '=':
            s[0] = c; s[1] = '\0';
            pos++;
            if (buf[pos] == '=')
            {
                s[1] = '='; s[2] = '\0';
                pos++;
            }
            else if ((c == '<' || c == '>') && buf[pos] == c)
            {
                s[1] = c; s[2] = '\0';
                pos++;
            }
            return getTokenFromName(s);
        case '-':
            s[0] = c; s[1] = '\0';
            pos++;
            if (buf[pos] == '-' || buf[pos] == 'w')
            {
                s[1] = buf[pos]; s[2] = '\0';
                pos++;