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| author | Mattias Andrée <maandree@kth.se> | 2021-04-18 00:06:34 +0200 |
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| committer | Mattias Andrée <maandree@kth.se> | 2021-04-18 00:06:34 +0200 |
| commit | 0697cc07dcdee8ec6c4440c565fb629502ad7f1f (patch) | |
| tree | 9fdf7984b7de3e91454e4094a206db828a6b19f3 | |
| parent | m (diff) | |
| download | libparser-0697cc07dcdee8ec6c4440c565fb629502ad7f1f.tar.gz libparser-0697cc07dcdee8ec6c4440c565fb629502ad7f1f.tar.bz2 libparser-0697cc07dcdee8ec6c4440c565fb629502ad7f1f.tar.xz | |
Simplify whitespace in grammar representation
Signed-off-by: Mattias Andrée <maandree@kth.se>
| -rw-r--r-- | README | 20 | ||||
| -rw-r--r-- | libparser.7 | 20 |
2 files changed, 20 insertions, 20 deletions
@@ -75,14 +75,14 @@ EXTENDED DESCRIPTION _low = character | integer; _high = character | integer; - concatenation = _, _operand, _, {",", _, _operand, _}; - alternation = _, concatenation, _, {"|", _, concatenation, _}; - optional = _, "[", _, _expression, _, "]", _; - repeated = _, "{", _, _expression, _, "}", _; - group = _, "(", _, _expression, _, ")", _; - char-range = _, "<", _, _low, _, ",", _, _high, "_", ">", _; - exception = _, "-", _; - embedded-rule = _, identifier, _; + concatenation = _operand, {_, ",", _, _operand}; + alternation = concatenation, {_, "|", _, concatenation}; + optional = "[", _, _expression, _, "]"; + repeated = "{", _, _expression, _, "}"; + group = "(", _, _expression, _, ")"; + char-range = "<", _, _low, _, ",", _, _high, "_", ">"; + exception = "-"; + embedded-rule = identifier; _literal = char-range | exception | string; _group = optional | repeated | group | embedded-rule; @@ -93,10 +93,10 @@ EXTENDED DESCRIPTION (* RULES *) - rule = _, identifier, _, "=", _, _expression, ";"; + rule = identifier, _, "=", _, _expression, _, ";"; (* This is the root rule of the grammar. *) - grammar = {rules, _}, _; + grammar = _, {rules, _}; The file must be encoded in UTF-8, with LF as the line break (CR and FF are illegal just becuase). diff --git a/libparser.7 b/libparser.7 index 1402dcd..31fff65 100644 --- a/libparser.7 +++ b/libparser.7 @@ -87,14 +87,14 @@ integer = _decimal | _hexadecimal; (* May not exceed 255. *) _low = character | integer; _high = character | integer; -concatenation = _, _operand, _, {\(dq,\(dq, _, _operand, _}; -alternation = _, concatenation, _, {\(dq|\(dq, _, concatenation, _}; -optional = _, \(dq[\(dq, _, _expression, _, \(dq]\(dq, _; -repeated = _, \(dq{\(dq, _, _expression, _, \(dq}\(dq, _; -group = _, \(dq(\(dq, _, _expression, _, \(dq)\(dq, _; -char-range = _, \(dq<\(dq, _, _low, _, \(dq,\(dq, _, _high, \(dq_\(dq, \(dq>\(dq, _; -exception = _, \(dq-\(dq, _; -embedded-rule = _, identifier, _; +concatenation = _operand, {_, \(dq,\(dq, _, _operand}; +alternation = concatenation, {_, \(dq|\(dq, _, concatenation}; +optional = \(dq[\(dq, _, _expression, _, \(dq]\(dq; +repeated = \(dq{\(dq, _, _expression, _, \(dq}\(dq; +group = \(dq(\(dq, _, _expression, _, \(dq)\(dq; +char-range = \(dq<\(dq, _, _low, _, \(dq,\(dq, _, _high, \(dq_\(dq, \(dq>\(dq; +exception = \(dq-\(dq; +embedded-rule = identifier; _literal = char-range | exception | string; _group = optional | repeated | group | embedded-rule; @@ -105,10 +105,10 @@ _expression = alternation; (* RULES *) -rule = _, identifier, _, \(dq=\(dq, _, _expression, \(dq;\(dq; +rule = identifier, _, \(dq=\(dq, _, _expression, _, \(dq;\(dq; (* This is the root rule of the grammar. *) -grammar = {rules, _}, _; +grammar = _, {rules, _}; .fi .PP .RE |