diff options
Diffstat (limited to 'Parser')
| -rw-r--r-- | Parser/tokenizer.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c index d737e55..ccc6d6d 100644 --- a/Parser/tokenizer.c +++ b/Parser/tokenizer.c @@ -81,6 +81,11 @@ char *tok_name[] = { "BACKQUOTE", "LBRACE", "RBRACE", + "EQEQUAL", + "NOTEQUAL", + "LESSEQUAL", + "GREATEREQUAL", + /* This table must match the #defines in token.h! */ "OP", "<ERRORTOKEN>", "<N_TOKENS>" @@ -301,6 +306,37 @@ tok_1char(c) } +int +tok_2char(c1, c2) + int c1, c2; +{ + switch (c1) { + case '=': + switch (c2) { + case '=': return EQEQUAL; + } + break; + case '!': + switch (c2) { + case '=': return NOTEQUAL; + } + break; + case '<': + switch (c2) { + case '>': return NOTEQUAL; + case '=': return LESSEQUAL; + } + break; + case '>': + switch (c2) { + case '=': return GREATEREQUAL; + } + break; + } + return OP; +} + + /* Get next token, after space stripping etc. */ int @@ -531,6 +567,17 @@ tok_get(tok, p_start, p_end) goto again; /* Read next line */ } + /* Check for two-character token */ + { + int c2 = tok_nextc(tok); + int token = tok_2char(c, c2); + if (token != OP) { + *p_end = tok->cur; + return token; + } + tok_backup(tok, c2); + } + /* Punctuation character */ *p_end = tok->cur; return tok_1char(c); |