Mercurial > hg > octave-lyh
comparison NEWS @ 16898:531473481084
rewrite string parsing to avoid unlimited lookahead
* NEWS: Mention change.
* lex.h, lex.ll (lexical_feedback::string_text,
lexical_feedback::string_line, lexical_feedback::string_column):
New data members
(lexical_feedback::lexical_feedback): Initialize them.
(lexical_feedback::reset): Initialize them.
(octave_base_lexer::begin_string): New function.
(\", "'", <COMMAND_START>[\"\']): Use begin_string to set start state
* instead of calling handle_string to parse string.
(DQ_STRING_START, SQ_STRING_START): New exclusive start states.
(<DQ_STRING_START>\"\", <DQ_STRING_START>\", <DQ_STRING_START>{NL},
<DQ_STRING_START>\\[0-7]{1,3}, <DQ_STRING_START>"\\a",
<DQ_STRING_START>"\\b", <DQ_STRING_START>"\\f",
<DQ_STRING_START>"\\n", <DQ_STRING_START>"\\r",
<DQ_STRING_START>"\\t", <DQ_STRING_START>"\\v",
<DQ_STRING_START>\\{ANY_INCLUDING_NL}, <DQ_STRING_START>[^\\\n\"]+,
<SQ_STRING_START>[^\'\n\r]*\', <SQ_STRING_START>{NL}):
New rules for parsing character strings.
(octave_base_lexer::have_continuation,
octave_base_lexer::have_ellipsis_continuation,
octave_base_lexer::handle_string): Delete.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 04 Jul 2013 20:33:02 -0400 |
| parents | 83425e536ce1 |
| children | 861516dcad19 |
comparison
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| 16897:21d5e76891fe | 16898:531473481084 |
|---|---|
| 74 | 74 |
| 75 [a,... | 75 [a,... |
| 76 b,... | 76 b,... |
| 77 c,... | 77 c,... |
| 78 ] = deal (1,2,3) | 78 ] = deal (1,2,3) |
| 79 | |
| 80 ** Line continuations inside character strings have changed. | |
| 81 | |
| 82 The sequence '...' is no longer recognized as a line continuations | |
| 83 are inside character strings. A backslash followed by a newline | |
| 84 character is no longer recognized as a line continuation inside | |
| 85 single-quoted character strings. Inside double-quoted character | |
| 86 strings, a backslash followed by a newline character is still | |
| 87 recognized as a line continuation but the backslash character must | |
| 88 be followed immediately by the newline character. No whitespace or | |
| 89 end-of-linecomment may appear between them. | |
| 79 | 90 |
| 80 ** Warning IDs renamed: | 91 ** Warning IDs renamed: |
| 81 | 92 |
| 82 Octave:array-as-scalar => Octave:array-to-scalar | 93 Octave:array-as-scalar => Octave:array-to-scalar |
| 83 Octave:array-as-vector => Octave:array-to-vector | 94 Octave:array-as-vector => Octave:array-to-vector |