Mercurial > hg > octave-lyh
comparison libinterp/parse-tree/lex.ll @ 16283:9a85870f2bc1
delete unused class and unused functions
* lex.h, lex.ll (flex_stream_reader): Delete unused class.
(octave_lexer::next_token_can_follow_bin_op): Delete.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Mon, 11 Mar 2013 17:17:48 -0400 |
| parents | 1bbc2fc552cf |
| children | 09881dab3aaf |
comparison
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inserted
replaced
| 16281:1bbc2fc552cf | 16283:9a85870f2bc1 |
|---|---|
| 1427 "__lexer_debug_flag__"); | 1427 "__lexer_debug_flag__"); |
| 1428 | 1428 |
| 1429 return retval; | 1429 return retval; |
| 1430 } | 1430 } |
| 1431 | 1431 |
| 1432 class | |
| 1433 flex_stream_reader : public stream_reader | |
| 1434 { | |
| 1435 public: | |
| 1436 flex_stream_reader (octave_lexer *l, char *buf_arg) | |
| 1437 : stream_reader (), lexer (l), buf (buf_arg) | |
| 1438 { } | |
| 1439 | |
| 1440 int getc (void) { return lexer->text_yyinput (); } | |
| 1441 int ungetc (int c) { lexer->xunput (c, buf); return 0; } | |
| 1442 | |
| 1443 private: | |
| 1444 | |
| 1445 // No copying! | |
| 1446 | |
| 1447 flex_stream_reader (const flex_stream_reader&); | |
| 1448 | |
| 1449 flex_stream_reader& operator = (const flex_stream_reader&); | |
| 1450 | |
| 1451 octave_lexer *lexer; | |
| 1452 | |
| 1453 char *buf; | |
| 1454 }; | |
| 1455 | |
| 1456 lexical_feedback::~lexical_feedback (void) | 1432 lexical_feedback::~lexical_feedback (void) |
| 1457 { | 1433 { |
| 1458 tokens.clear (); | 1434 tokens.clear (); |
| 1459 } | 1435 } |
| 1460 | 1436 |
| 2435 } | 2411 } |
| 2436 | 2412 |
| 2437 pop_start_state (); | 2413 pop_start_state (); |
| 2438 | 2414 |
| 2439 return retval; | 2415 return retval; |
| 2440 } | |
| 2441 | |
| 2442 bool | |
| 2443 octave_lexer::next_token_can_follow_bin_op (void) | |
| 2444 { | |
| 2445 std::stack<char> buf; | |
| 2446 | |
| 2447 int c = EOF; | |
| 2448 | |
| 2449 // Skip whitespace in current statement on current line | |
| 2450 while (true) | |
| 2451 { | |
| 2452 c = text_yyinput (); | |
| 2453 | |
| 2454 buf.push (c); | |
| 2455 | |
| 2456 if (match_any (c, ",;\n") || (c != ' ' && c != '\t')) | |
| 2457 break; | |
| 2458 } | |
| 2459 | |
| 2460 // Restore input. | |
| 2461 while (! buf.empty ()) | |
| 2462 { | |
| 2463 xunput (buf.top ()); | |
| 2464 | |
| 2465 buf.pop (); | |
| 2466 } | |
| 2467 | |
| 2468 return (isalnum (c) || match_any (c, "!\"'(-[_{~")); | |
| 2469 } | 2416 } |
| 2470 | 2417 |
| 2471 bool | 2418 bool |
| 2472 octave_lexer::looks_like_command_arg (void) | 2419 octave_lexer::looks_like_command_arg (void) |
| 2473 { | 2420 { |