peg2 0.1.8 
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PEG+ (Parsing expression grammar) parser source code generator, command line tool.
void main() {
final parser = ExampleParser();
final result = parser.parse(_text);
if (parser.error != null) {
throw parser.error;
}
print(result);
}
final _text = '''
{"foo": false}
''';
class ExampleParser {
static const _eof = 0x110000;
FormatException error;
int _c;
int _cp;
int _failed;
int _failurePos;
bool _hasMalformed;
String _input;
List<bool> _memoizable;
List<List<_Memo>> _memos;
var _mresult;
int _pos;
bool _predicate;
dynamic _result;
List<int> _states;
bool _success;
List<String> _terminals;
int _terminalCount;
List<_Buffer<int, int>> _tracks;
dynamic parse(String text) {
if (text == null) {
throw ArgumentError.notNull('text');
}
_input = text;
_reset();
final result = _parseJson(0, true);
_buildError();
_terminals = null;
_input = null;
return result;
}
void _buildError() {
if (_success) {
error = null;
return;
}
String escape(int c) {
switch (c) {
case 10:
return r'\n';
case 13:
return r'\r';
case 09:
return r'\t';
case _eof:
return '';
}
return String.fromCharCode(c);
}
String getc(int position) {
if (position < _input.length) {
return "'${escape(_input.codeUnitAt(position))}'";
}
return 'end of file';
}
final temp = _terminals.take(_terminalCount).toList();
temp.sort((e1, e2) => e1.compareTo(e2));
final terminals = temp.toSet();
if (terminals.isNotEmpty) {
if (!_hasMalformed) {
final sb = StringBuffer();
sb.write('Expected ');
sb.write(terminals.join(', '));
sb.write(' but found ');
sb.write(getc(_failurePos));
final message = sb.toString();
error = FormatException(message, _input, _failurePos);
} else {
final reason =
_failurePos < _input.length ? 'Malformed' : 'Unterminated';
final sb = StringBuffer();
sb.write(reason);
sb.write(' ');
sb.write(terminals.join(', '));
final message = sb.toString();
error = FormatException(message, _input, _failurePos);
}
} else {
final sb = StringBuffer();
sb.write('Unexpected character ');
sb.write(getc(_failurePos));
final message = sb.toString();
error = FormatException(message, _input, _failurePos);
}
}
void _fail(int failed) {
if (!_predicate) {
if (_failurePos < failed) {
_failurePos = failed;
_hasMalformed = false;
_terminalCount = 0;
}
if (_failed < failed) {
_failed = failed;
}
}
_success = false;
}
void _failure(String name) {
var flagged = true;
final malformed = _failed > _pos;
if (malformed && !_hasMalformed) {
_hasMalformed = true;
_terminalCount = 0;
} else if (_hasMalformed) {
flagged = false;
}
if (flagged && _failed >= _failurePos) {
if (_terminals.length <= _terminalCount) {
_terminals.length += 50;
}
_terminals[_terminalCount++] = name;
}
}
void _getch() {
_cp = _pos;
var pos = _pos;
if (pos < _input.length) {
final leading = _input.codeUnitAt(pos++);
if ((leading & 0xFC00) == 0xD800 && _pos < _input.length) {
final trailing = _input.codeUnitAt(pos);
if ((trailing & 0xFC00) == 0xDC00) {
_c = 0x10000 + ((leading & 0x3FF) << 10) + (trailing & 0x3FF);
pos++;
} else {
_c = leading;
}
} else {
_c = leading;
}
} else {
_c = _eof;
}
}
int _matchAny() {
if (_cp != _pos) {
_getch();
}
int result;
if (_c != _eof) {
result = _c;
_pos += _c < 0xffff ? 1 : 2;
_c = null;
_success = true;
} else {
_fail(_pos);
}
return result;
}
int _matchChar(int c) {
if (_cp != _pos) {
_getch();
}
int result;
if (_c != _eof && _c == c) {
result = _c;
_pos += _c < 0xffff ? 1 : 2;
_c = null;
_success = true;
} else {
_fail(_pos);
}
return result;
}
int _matchRanges(List<int> ranges) {
if (_cp != _pos) {
_getch();
}
int result;
_success = false;
if (_c != _eof) {
for (var i = 0; i < ranges.length; i += 2) {
if (ranges[i] <= _c) {
if (ranges[i + 1] >= _c) {
result = _c;
_pos += _c < 0xffff ? 1 : 2;
_c = null;
_success = true;
break;
}
} else {
break;
}
}
}
if (!_success) {
_fail(_pos);
}
return result;
}
String _matchString(String text) {
String result;
final length = text.length;
final rest = _input.length - _pos;
final count = length > rest ? rest : length;
var pos = _pos;
var i = 0;
for (; i < count; i++, pos++) {
if (text.codeUnitAt(i) != _input.codeUnitAt(pos)) {
break;
}
}
if (i == length) {
_pos += length;
_success = true;
result = text;
} else {
_fail(_pos + i);
}
return result;
}
bool _memoized(int id, int cid) {
final memos = _memos[_pos];
if (memos != null) {
for (var i = 0; i < memos.length; i++) {
final memo = memos[i];
if (memo.id == id) {
_cp = -1;
_pos = memo.pos;
_mresult = memo.result;
_success = memo.success;
return true;
}
}
}
if (_memoizable[cid] == true) {
return false;
}
var track = _tracks[id];
if (track == null) {
track = _Buffer(10);
_tracks[id] = track;
track.add(cid, _pos);
return false;
}
final key = track.find(_pos);
if (key == null) {
return false;
}
if (key != cid) {
_memoizable[key] = true;
}
return false;
}
void _memoize(int id, int pos, result) {
var memos = _memos[pos];
if (memos == null) {
memos = [];
_memos[pos] = memos;
}
final memo = _Memo(
id: id,
pos: _pos,
result: result,
success: _success,
);
memos.add(memo);
}
void _reset() {
_c = _eof;
_cp = -1;
_failurePos = -1;
_hasMalformed = false;
_memoizable = [];
_memoizable.length = 187;
_memos = [];
_memos.length = _input.length + 1;
_pos = 0;
_predicate = false;
_states = [];
_states.length = 20 * 3;
_terminalCount = 0;
_terminals = [];
_terminals.length = 20;
_tracks = [];
_tracks.length = 187;
}
dynamic _parseJson(int $0, bool $1) {
dynamic $2;
dynamic $3;
dynamic $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
_parse_leading_spaces(3, false);
_success = true;
var $9 = _parseValue(4, $1);
if (_success) {
_parse_end_of_file(5, false);
if (_success) {
$4 = $9;
}
}
// NOP;
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
return $2;
}
dynamic _parseValue(int $0, bool $1) {
dynamic $2;
dynamic $3;
for (;;) {
List $4;
var $5 = _parseArray(8, $1);
if (_success) {
$4 = $5;
$3 = $4;
break;
}
// NOP;
dynamic $6;
var $7 = _parse_false(10, $1);
if (_success) {
$6 = $7;
$3 = $6;
break;
}
// NOP;
dynamic $8;
var $9 = _parse_null(12, $1);
if (_success) {
$8 = $9;
$3 = $8;
break;
}
// NOP;
dynamic $10;
var $11 = _parse_true(14, $1);
if (_success) {
$10 = $11;
$3 = $10;
break;
}
// NOP;
Map<String, dynamic> $12;
var $13 = _parseObject(16, $1);
if (_success) {
$12 = $13;
$3 = $12;
break;
}
// NOP;
num $14;
var $15 = _parse_number(18, $1);
if (_success) {
$14 = $15;
$3 = $14;
break;
}
// NOP;
String $16;
var $17 = _parse_string(20, $1);
if (_success) {
$16 = $17;
$3 = $16;
}
// NOP;
break;
}
$2 = $3;
return $2;
}
List _parseArray(int $0, bool $1) {
List $2;
List $3;
List $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
_parse_$LeftSquareBracket(23, false);
if (_success) {
var $9 = _parseValues(25, $1);
_success = true;
_parse_$RightSquareBracket(26, false);
if (_success) {
var v = $9;
List $$;
$$ = v ?? [];
$4 = $$;
}
// NOP;
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
return $2;
}
List _parseValues(int $0, bool $1) {
List $2;
List $3;
List $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _parseValue(29, $1);
if (_success) {
List $9;
if ($1) {
$9 = [];
}
for (;;) {
dynamic $10;
dynamic $11;
var $12 = _c;
var $13 = _cp;
var $14 = _pos;
_parse_$Comma(33, false);
if (_success) {
var $16 = _parseValue(34, $1);
if (_success) {
$11 = $16;
}
}
if (!_success) {
_c = $12;
_cp = $13;
_pos = $14;
}
$10 = $11;
if (!_success) {
break;
}
if ($1) {
$9.add($10);
}
}
_success = true;
{
var v = $8;
var n = $9;
List $$;
$$ = [v, ...n];
$4 = $$;
}
// NOP;
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
return $2;
}
Map<String, dynamic> _parseObject(int $0, bool $1) {
Map<String, dynamic> $2;
Map<String, dynamic> $3;
Map<String, dynamic> $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
_parse_$LeftBrace(37, false);
if (_success) {
var $9 = _parseMembers(39, $1);
_success = true;
_parse_$RightBrace(40, false);
if (_success) {
var m = $9;
Map<String, dynamic> $$;
$$ = <String, dynamic>{}..addEntries(m ?? []);
$4 = $$;
}
// NOP;
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
return $2;
}
List<MapEntry<String, dynamic>> _parseMembers(int $0, bool $1) {
List<MapEntry<String, dynamic>> $2;
List<MapEntry<String, dynamic>> $3;
List<MapEntry<String, dynamic>> $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _parseMember(43, $1);
if (_success) {
List<MapEntry<String, dynamic>> $9;
if ($1) {
$9 = [];
}
for (;;) {
MapEntry<String, dynamic> $10;
MapEntry<String, dynamic> $11;
var $12 = _c;
var $13 = _cp;
var $14 = _pos;
_parse_$Comma(47, false);
if (_success) {
var $16 = _parseMember(48, $1);
if (_success) {
$11 = $16;
}
}
if (!_success) {
_c = $12;
_cp = $13;
_pos = $14;
}
$10 = $11;
if (!_success) {
break;
}
if ($1) {
$9.add($10);
}
}
_success = true;
{
var m = $8;
var n = $9;
List<MapEntry<String, dynamic>> $$;
$$ = [m, ...n];
$4 = $$;
}
// NOP;
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
return $2;
}
MapEntry<String, dynamic> _parseMember(int $0, bool $1) {
MapEntry<String, dynamic> $2;
MapEntry<String, dynamic> $3;
MapEntry<String, dynamic> $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _parse_string(51, $1);
if (_success) {
_parse_$Colon(52, false);
if (_success) {
var $10 = _parseValue(53, $1);
if (_success) {
var k = $8;
var v = $10;
MapEntry<String, dynamic> $$;
$$ = MapEntry(k, v);
$4 = $$;
}
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
return $2;
}
dynamic _parse_end_of_file(int $0, bool $1) {
_failed = -1;
dynamic $2;
dynamic $3;
dynamic $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _predicate;
var $9 = $1;
_predicate = true;
$1 = false;
_matchAny();
var $11;
_success = !_success;
_c = $5;
_cp = $6;
_pos = $7;
_predicate = $8;
$1 = $9;
if (_success) {
$4 = $11;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\'end of file\'');
}
return $2;
}
dynamic _parse_false(int $0, bool $1) {
_failed = -1;
dynamic $2;
dynamic $3;
dynamic $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
_matchString('false');
if (_success) {
_parse$$spacing(61, false);
if (_success) {
dynamic $$;
$$ = false;
$4 = $$;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\'false\'');
}
return $2;
}
List<int> _parse_leading_spaces(int $0, bool $1) {
_failed = -1;
List<int> $2;
List<int> $3;
List<int> $4;
var $5 = _parse$$spacing(64, $1);
if (_success) {
$4 = $5;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\'leading spaces\'');
}
return $2;
}
dynamic _parse_null(int $0, bool $1) {
_failed = -1;
dynamic $2;
dynamic $3;
dynamic $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
_matchString('null');
if (_success) {
_parse$$spacing(68, false);
if (_success) {
dynamic $$;
$$ = null;
$4 = $$;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\'null\'');
}
return $2;
}
dynamic _parse_true(int $0, bool $1) {
_failed = -1;
dynamic $2;
dynamic $3;
dynamic $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
_matchString('true');
if (_success) {
_parse$$spacing(72, false);
if (_success) {
dynamic $$;
$$ = true;
$4 = $$;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\'true\'');
}
return $2;
}
String _parse_string(int $0, bool $1) {
_failed = -1;
String $2;
String $3;
String $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
_matchString('\"');
if (_success) {
List<int> $9;
if ($1) {
$9 = [];
}
for (;;) {
var $10 = _parse$$char(77, $1);
if (!_success) {
break;
}
if ($1) {
$9.add($10);
}
}
_success = true;
_matchString('\"');
if (_success) {
_parse$$spacing(79, false);
if (_success) {
var c = $9;
String $$;
$$ = String.fromCharCodes(c);
$4 = $$;
}
}
// NOP;
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\'string\'');
}
return $2;
}
num _parse_number(int $0, bool $1) {
_failed = -1;
num $2;
num $3;
num $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
String $8;
var $9 = _pos;
var $10 = $1;
$1 = false;
int $11;
int $12;
var $13 = _c;
var $14 = _cp;
var $15 = _pos;
var $16 = _matchChar(45);
_success = true;
int $17;
for (;;) {
int $18;
var $19 = _matchChar(48);
if (_success) {
$18 = $19;
$17 = $18;
break;
}
// NOP;
int $20;
var $21 = _c;
var $22 = _cp;
var $23 = _pos;
const $24 = [49, 57];
var $25 = _matchRanges($24);
if (_success) {
List<int> $26;
if ($1) {
$26 = [];
}
for (;;) {
const $27 = [48, 57];
var $28 = _matchRanges($27);
if (!_success) {
break;
}
if ($1) {
$26.add($28);
}
}
_success = true;
$20 = $25;
// NOP;
}
if (!_success) {
_c = $21;
_cp = $22;
_pos = $23;
} else {
$17 = $20;
}
// NOP;
break;
}
if (_success) {
int $29;
int $30;
var $31 = _c;
var $32 = _cp;
var $33 = _pos;
var $34 = _matchChar(46);
if (_success) {
List<int> $35;
if ($1) {
$35 = [];
}
var $36 = false;
for (;;) {
const $37 = [48, 57];
var $38 = _matchRanges($37);
if (!_success) {
_success = $36;
if (!_success) {
$35 = null;
}
break;
}
if ($1) {
$35.add($38);
}
$36 = true;
}
if (_success) {
$30 = $34;
}
}
if (!_success) {
_c = $31;
_cp = $32;
_pos = $33;
}
$29 = $30;
_success = true;
int $39;
int $40;
var $41 = _c;
var $42 = _cp;
var $43 = _pos;
const $44 = [69, 69, 101, 101];
var $45 = _matchRanges($44);
if (_success) {
List<int> $46;
if ($1) {
$46 = [];
}
var $47 = false;
for (;;) {
const $48 = [32, 32, 43, 93];
var $49 = _matchRanges($48);
if (!_success) {
_success = $47;
if (!_success) {
$46 = null;
}
break;
}
if ($1) {
$46.add($49);
}
$47 = true;
}
if (_success) {
$40 = $45;
}
}
if (!_success) {
_c = $41;
_cp = $42;
_pos = $43;
}
$39 = $40;
_success = true;
$12 = $16;
// NOP;
// NOP;
}
// NOP;
if (!_success) {
_c = $13;
_cp = $14;
_pos = $15;
}
$11 = $12;
if (_success) {
$8 = _input.substring($9, _pos);
}
$1 = $10;
if (_success) {
_parse$$spacing(106, false);
if (_success) {
var n = $8;
num $$;
$$ = num.parse(n);
$4 = $$;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\'number\'');
}
return $2;
}
String _parse_$LeftBrace(int $0, bool $1) {
_failed = -1;
String $2;
String $3;
String $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _matchString('{');
if (_success) {
_parse$$spacing(110, false);
if (_success) {
$4 = $8;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\'{\'');
}
return $2;
}
String _parse_$RightBrace(int $0, bool $1) {
_failed = -1;
String $2;
String $3;
String $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _matchString('}');
if (_success) {
_parse$$spacing(114, false);
if (_success) {
$4 = $8;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\'}\'');
}
return $2;
}
String _parse_$LeftSquareBracket(int $0, bool $1) {
_failed = -1;
String $2;
String $3;
String $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _matchString('[');
if (_success) {
_parse$$spacing(118, false);
if (_success) {
$4 = $8;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\'[\'');
}
return $2;
}
String _parse_$RightSquareBracket(int $0, bool $1) {
_failed = -1;
String $2;
String $3;
String $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _matchString(']');
if (_success) {
_parse$$spacing(122, false);
if (_success) {
$4 = $8;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\']\'');
}
return $2;
}
String _parse_$Comma(int $0, bool $1) {
_failed = -1;
String $2;
String $3;
String $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _matchString(',');
if (_success) {
_parse$$spacing(126, false);
if (_success) {
$4 = $8;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\',\'');
}
return $2;
}
String _parse_$Colon(int $0, bool $1) {
_failed = -1;
String $2;
String $3;
String $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _matchString(':');
if (_success) {
_parse$$spacing(130, false);
if (_success) {
$4 = $8;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
if (!_success) {
_failure('\':\'');
}
return $2;
}
int _parse$$digit(int $0, bool $1) {
int $2;
int $3;
int $4;
const $5 = [48, 57];
_matchRanges($5);
if (_success) {
int $$;
$$ = $$ - 48;
$4 = $$;
}
$3 = $4;
$2 = $3;
return $2;
}
int _parse$$digit1_9(int $0, bool $1) {
int $2;
int $3;
int $4;
const $5 = [49, 57];
_matchRanges($5);
if (_success) {
int $$;
$$ = $$ - 48;
$4 = $$;
}
$3 = $4;
$2 = $3;
return $2;
}
int _parse$$char(int $0, bool $1) {
int $2;
int $3;
for (;;) {
int $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
_matchChar(92);
if (_success) {
var $9 = _parse$$escaped(140, $1);
if (_success) {
$4 = $9;
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
} else {
$3 = $4;
break;
}
// NOP;
int $10;
var $11 = _parse$$unescaped(142, $1);
if (_success) {
$10 = $11;
$3 = $10;
}
// NOP;
break;
}
$2 = $3;
return $2;
}
int _parse$$escaped(int $0, bool $1) {
int $2;
int $3;
for (;;) {
int $4;
var $5 = _matchChar(34);
if (_success) {
$4 = $5;
$3 = $4;
break;
}
// NOP;
int $6;
var $7 = _matchChar(92);
if (_success) {
$6 = $7;
$3 = $6;
break;
}
// NOP;
int $8;
var $9 = _matchChar(47);
if (_success) {
$8 = $9;
$3 = $8;
break;
}
// NOP;
int $10;
_matchChar(98);
if (_success) {
int $$;
$$ = 0x8;
$10 = $$;
}
if (_success) {
$3 = $10;
break;
}
int $12;
_matchChar(102);
if (_success) {
int $$;
$$ = 0xC;
$12 = $$;
}
if (_success) {
$3 = $12;
break;
}
int $14;
_matchChar(110);
if (_success) {
int $$;
$$ = 0xA;
$14 = $$;
}
if (_success) {
$3 = $14;
break;
}
int $16;
_matchChar(114);
if (_success) {
int $$;
$$ = 0xD;
$16 = $$;
}
if (_success) {
$3 = $16;
break;
}
int $18;
_matchChar(116);
if (_success) {
int $$;
$$ = 0x9;
$18 = $$;
}
if (_success) {
$3 = $18;
break;
}
int $20;
var $21 = _c;
var $22 = _cp;
var $23 = _pos;
_matchChar(117);
if (_success) {
var $25 = _parse$$hexdig4(162, $1);
if (_success) {
$20 = $25;
}
}
if (!_success) {
_c = $21;
_cp = $22;
_pos = $23;
} else {
$3 = $20;
}
// NOP;
break;
}
$2 = $3;
return $2;
}
int _parse$$hexdig4(int $0, bool $1) {
int $2;
int $3;
int $4;
var $5 = _c;
var $6 = _cp;
var $7 = _pos;
var $8 = _parse$$hexdig(165, $1);
if (_success) {
var $9 = _parse$$hexdig(166, $1);
if (_success) {
var $10 = _parse$$hexdig(167, $1);
if (_success) {
var $11 = _parse$$hexdig(168, $1);
if (_success) {
var a = $8;
var b = $9;
var c = $10;
var d = $11;
int $$;
$$ = a * 0xfff + b * 0xff + c * 0xf + d;
$4 = $$;
}
}
}
}
if (!_success) {
_c = $5;
_cp = $6;
_pos = $7;
}
$3 = $4;
$2 = $3;
return $2;
}
int _parse$$hexdig(int $0, bool $1) {
int $2;
int $3;
for (;;) {
int $4;
const $5 = [97, 102];
_matchRanges($5);
if (_success) {
int $$;
$$ = $$ - 97;
$4 = $$;
}
if (_success) {
$3 = $4;
break;
}
int $7;
const $8 = [65, 70];
_matchRanges($8);
if (_success) {
int $$;
$$ = $$ - 65;
$7 = $$;
}
if (_success) {
$3 = $7;
break;
}
int $10;
const $11 = [48, 57];
_matchRanges($11);
if (_success) {
int $$;
$$ = $$ - 48;
$10 = $$;
}
if (_success) {
$3 = $10;
}
break;
}
$2 = $3;
return $2;
}
int _parse$$unescaped(int $0, bool $1) {
int $2;
int $3;
for (;;) {
int $4;
const $5 = [32, 33];
var $6 = _matchRanges($5);
if (_success) {
$4 = $6;
$3 = $4;
break;
}
// NOP;
int $7;
const $8 = [35, 91];
var $9 = _matchRanges($8);
if (_success) {
$7 = $9;
$3 = $7;
break;
}
// NOP;
int $10;
const $11 = [93, 1114111];
var $12 = _matchRanges($11);
if (_success) {
$10 = $12;
$3 = $10;
}
// NOP;
break;
}
$2 = $3;
return $2;
}
List<int> _parse$$spacing(int $0, bool $1) {
List<int> $2;
List<int> $3;
List<int> $4;
List<int> $5;
if ($1) {
$5 = [];
}
for (;;) {
const $6 = [9, 10, 13, 13, 32, 32];
var $7 = _matchRanges($6);
if (!_success) {
break;
}
if ($1) {
$5.add($7);
}
}
_success = true;
$4 = $5;
// NOP;
$3 = $4;
$2 = $3;
return $2;
}
}
class _Buffer<K, V> {
List<K> keys;
int length;
int pos;
final int size;
List<V> values;
_Buffer(this.size) {
keys = List(size);
values = List(size);
length = 0;
pos = 0;
}
void add(K key, V value) {
keys[pos] = key;
values[pos] = value;
if (++pos >= size) {
pos = 0;
}
if (length < size) {
length++;
}
}
K find(V value) {
var index = pos - 1;
var count = length;
while (count-- > 0) {
final v = values[index];
if (v == value) {
return keys[index];
}
if (++index > size) {
index = 0;
}
}
return null;
}
}
class _Memo {
final int id;
final int pos;
final result;
final bool success;
_Memo({
this.id,
this.pos,
this.result,
this.success,
});
}
// ignore_for_file: prefer_final_locals
// ignore_for_file: unused_element
// ignore_for_file: unused_field
// ignore_for_file: unused_local_variableMetadata
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Metadata
PEG+ (Parsing expression grammar) parser source code generator, command line tool.
Repository (GitHub)
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License
unknown (LICENSE)
Dependencies
args, dart_style, lists, path, strings
