static void LexVector (void)
{
int i;
pr_file_p++;
pr_token_type = tt_immediate;
pr_immediate_type = &type_vector;
for (i = 0; i < 3; i++)
{
LexWhitespace();
pr_immediate.vector[i] = LexNumber();
}
LexWhitespace();
if (*pr_file_p != '\'')
{
PR_ParseError("bad vector");
}
pr_file_p++;
}
void LX_Fetch (void)
{
int c;
pr_tokenclass = TK_NONE;
pr_token[0] = 0;
if (!pr_file_p)
{
pr_token_type = tt_eof;
return;
}
LexWhitespace();
c = *pr_file_p;
switch (ASCIIToChrCode[c])
{
case CHR_LETTER:
LexName();
return;
case CHR_NUMBER:
pr_token_type = tt_immediate;
pr_immediate_type = &type_float;
pr_immediate._float = LexNumber();
return;
case CHR_DQUOTE:
LexString();
return;
case CHR_SQUOTE:
LexVector();
return;
case CHR_DOLLARSIGN:
LexGrab();
return;
case CHR_EOF:
pr_token_type = tt_eof;
return;
case CHR_SPECIAL:
default:
LexPunctuation();
return;
}
}
void MetaLexer::Lex(Token& Tok) {
Tok.startToken(curPos);
char C = *curPos++;
switch (C) {
case '"': case '\'':
return LexQuotedStringAndAdvance(curPos, Tok);
case '[': case ']': case '(': case ')': case '{': case '}':
case '\\': case ',': case '.': case '!': case '?': case '>':
case '&': case '#': case '@': case '*': case ';':
// INTENTIONAL FALL THROUGHs
return LexPunctuator(curPos - 1, Tok);
case '/':
if (*curPos == '/') {
++curPos;
Tok.setKind(tok::comment);
Tok.setLength(2);
return;
}
return LexPunctuator(curPos - 1, Tok);
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
return LexConstant(C, Tok);
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N':
case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U':
case 'V': case 'W': case 'X': case 'Y': case 'Z':
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n':
case 'o': case 'p': case 'q': case 'r': case 's': case 't': case 'u':
case 'v': case 'w': case 'x': case 'y': case 'z':
case '_':
return LexIdentifier(C, Tok);
case ' ': case '\t':
return LexWhitespace(C, Tok);
case '\0':
return LexEndOfFile(C, Tok);
}
}
