Mercurial > octave
changeset 28262:3e3ad0ae247f stable
handle comments in multi-line statements with push parser/lexer (bug #58198)
* lex.ll (<LINE_COMMENT_START>{ANY_INCLUDING_NL}): With push lexer,
return -1 at end of buffer if yytext begins with special ASCII 1
marker.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Mon, 04 May 2020 11:49:06 -0400 |
| parents | ec77c790fce2 |
| children | d63e05fdf11b d938c4d22200 |
| files | libinterp/parse-tree/lex.ll |
| diffstat | 1 files changed, 5 insertions(+), 1 deletions(-) [+] |
line wrap: on
line diff
--- a/libinterp/parse-tree/lex.ll Sat Feb 22 17:26:34 2020 +0100 +++ b/libinterp/parse-tree/lex.ll Mon May 04 11:49:06 2020 -0400 @@ -824,7 +824,11 @@ curr_lexer->pop_start_state (); - HANDLE_EOB_OR_EOF (-2); + // If yytext contains the special ASCII 1 marker inserted by + // push_lexer::fill_flex_buffer and we are at the end of the buffer, + // return -1 to indicate that we are expecting more input. + + HANDLE_EOB_OR_EOF (yytext[0] == '\001' ? -1 : -2); // Restore all characters except the ASCII 1 marker that was // inserted by push_lexer::fill_flex_buffer.