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| author |   Mu Qiao <qiaomuf@gentoo.org> | 2011-07-29 20:54:12 +0800 |
|---|---|---|
| committer | Mu Qiao <qiaomuf@gentoo.org> | 2011-08-02 15:52:19 +0800 |
| commit | 1e51015b4e2e76a912e077faf772e6470090b130 (patch) | |
| tree | aa73c41c86c408c2e7673087ed3afeda3036dccc /bashast | |
| parent | Parser: allow 'function' to be string literal (diff) | |
| download | libbash-1e51015b4e2e76a912e077faf772e6470090b130.tar.gz libbash-1e51015b4e2e76a912e077faf772e6470090b130.tar.bz2 libbash-1e51015b4e2e76a912e077faf772e6470090b130.zip | |
Parser: improve the rule for regular expression
Diffstat (limited to 'bashast')
| -rw-r--r-- | bashast/bashast.g | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/bashast/bashast.g b/bashast/bashast.g index ea8185f..5549439 100644 --- a/bashast/bashast.g +++ b/bashast/bashast.g @@ -620,19 +620,27 @@ keyword_condition_binary -> ^(MATCH_PATTERN condition_part ^(STRING extended_pattern_match+)) | -> condition_part ); -//TODO improve this rule bash_pattern_part scope { int parens; +#ifdef OUTPUT_C + bool quoted; +#else + boolean quoted; +#endif } @init { $bash_pattern_part::parens = 0; + $bash_pattern_part::quoted = false; } :( - (ESC BLANK) => ESC BLANK + DQUOTE! { $bash_pattern_part::quoted = !$bash_pattern_part::quoted; } + | {$bash_pattern_part::quoted}? => ~DQUOTE + | (ESC BLANK) => ESC BLANK | LPAREN { if(LA(-2) != ESC) $bash_pattern_part::parens++; } + | LLPAREN { if(LA(-2) != ESC) $bash_pattern_part::parens += 2; } | {$bash_pattern_part::parens != 0}? => RPAREN { if(LA(-2) != ESC) $bash_pattern_part::parens--; } - | ~(BLANK|EOL|LOGICAND|LOGICOR|LPAREN|RPAREN) + | ~(BLANK|EOL|LOGICAND|LOGICOR|LPAREN|RPAREN|DQUOTE|LLPAREN) )+; keyword_binary_string_operator : BLANK! binary_operator BLANK! |