Bootstrapped the grammar parser, yay! I should have done this long ago.
David Majda
15 years ago
parent
1ee0049b08
commit
a43d1b33e3
File diff suppressed because it is too large
Load Diff
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grammar: __ rule+ {
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var result = {};
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for (var i = 0; i < $2.length; i++) { result[$2[i].getName()] = $2[i]; }
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return result;
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}
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rule: identifier (literal / "") colon expression {
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return new PEG.Grammar.Rule($1, $2 !== "" ? $2 : null, $4);
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}
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expression: choice
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choice: sequence (slash sequence)* {
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return $2.length > 0
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? new PEG.Grammar.Choice([$1].concat(PEG.ArrayUtils.map(
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$2,
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function(element) { return element[1]; }
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)))
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: $1;
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}
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sequence
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: prefixed* action {
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return new PEG.Grammar.Action(
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$1.length != 1 ? new PEG.Grammar.Sequence($1) : $1[0],
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$2
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);
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}
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/ prefixed* { return $1.length != 1 ? new PEG.Grammar.Sequence($1) : $1[0]; }
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prefixed
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: and suffixed {
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return new PEG.Grammar.NotPredicate(new PEG.Grammar.NotPredicate($2));
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}
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/ not suffixed { return new PEG.Grammar.NotPredicate($2); }
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/ suffixed
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suffixed
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: primary question {
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return new PEG.Grammar.Choice([$1, new PEG.Grammar.Literal("")]);
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}
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/ primary star { return new PEG.Grammar.ZeroOrMore($1); }
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/ primary plus {
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return new PEG.Grammar.Action(
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new PEG.Grammar.Sequence([$1, new PEG.Grammar.ZeroOrMore($1)]),
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function(first, rest) { return [first].concat(rest); }
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);
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}
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/ primary
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primary
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: identifier !(( literal / "") colon) { return new PEG.Grammar.RuleRef($1); }
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/ literal { return new PEG.Grammar.Literal($1); }
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/ dot { return new PEG.Grammar.Any(); }
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/ class {
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return new PEG.Grammar.Choice(
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PEG.ArrayUtils.map(
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$1.split(""),
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function(character) { return new PEG.Grammar.Literal(character); }
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)
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);
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}
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/ lparen expression rparen { return $2; }
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/* "Lexical" elements */
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action "action": braced __ { return $1.substr(1, $1.length - 2); }
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braced: "{" (braced / nonBraceCharacter)* "}" { return $1 + $2.join("") + $3; }
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nonBraceCharacters: nonBraceCharacter+ { return $1.join(""); }
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nonBraceCharacter: !("{" / "}") . { return $2; }
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colon: ":" __ { return $1; }
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slash: "/" __ { return $1; }
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and: "&" __ { return $1; }
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not: "!" __ { return $1; }
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question: "?" __ { return $1; }
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star: "*" __ { return $1; }
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plus: "+" __ { return $1; }
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lparen: "(" __ { return $1; }
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rparen: ")" __ { return $1; }
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dot: "." __ { return $1; }
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/*
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* Modelled after ECMA-262, 5th ed., 7.6, but much simplified:
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*
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* * no Unicode escape sequences
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*
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* * "Unicode combining marks" and "Unicode connection punctuation" can't be
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* part of the identifier
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*
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* * only [a-zA-Z] is considered a "Unicode letter"
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*
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* * only [0-9] is considered a "Unicode digit"
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*
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* The simplifications were made just to make the implementation little bit
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* easier, there is no "philosophical" reason behind them.
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*/
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identifier "identifier": (letter / "_" / "$") (letter / digit / "_" / "$")* __ {
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return $1 + $2.join("");
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}
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/*
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* Modelled after ECMA-262, 5th ed., 7.8.4. (syntax & semantics, rules only
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* vaguely).
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*/
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literal "literal": (doubleQuotedLiteral / singleQuotedLiteral) __ { return $1; }
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doubleQuotedLiteral: '"' doubleQuotedCharacter* '"' { return $2.join(""); }
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doubleQuotedCharacter
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: simpleDoubleQuotedCharacter
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/ simpleEscapeSequence
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/ zeroEscapeSequence
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/ hexEscapeSequence
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/ unicodeEscapeSequence
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/ eolEscapeSequence
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simpleDoubleQuotedCharacter: !('"' / "\\" / eolChar) . { return $2; }
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singleQuotedLiteral: "'" singleQuotedCharacter* "'" { return $2.join(""); }
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singleQuotedCharacter
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: simpleSingleQuotedCharacter
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/ simpleEscapeSequence
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/ zeroEscapeSequence
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/ hexEscapeSequence
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/ unicodeEscapeSequence
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/ eolEscapeSequence
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simpleSingleQuotedCharacter: !("'" / "\\" / eolChar) . { return $2; }
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class "character class": "[" (classCharacterRange / classCharacter)* "]" __ {
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return $2.join("");
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}
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classCharacterRange: bracketDelimitedCharacter "-" bracketDelimitedCharacter {
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var beginCharCode = $1.charCodeAt(0);
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var endCharCode = $3.charCodeAt(0);
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if (beginCharCode > endCharCode) {
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throw new PEG.Parser.SyntaxError(
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"Invalid character range: " + $1 + "-" + $3 + "."
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);
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}
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var result = "";
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for (var charCode = beginCharCode; charCode <= endCharCode; charCode++) {
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result += String.fromCharCode(charCode);
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}
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return result;
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}
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classCharacter: bracketDelimitedCharacter
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bracketDelimitedCharacter
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: simpleBracketDelimitedCharacter
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/ simpleEscapeSequence
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/ zeroEscapeSequence
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/ hexEscapeSequence
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/ unicodeEscapeSequence
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/ eolEscapeSequence
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simpleBracketDelimitedCharacter: !("]" / "\\" / eolChar) . { return $2; }
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simpleEscapeSequence: "\\" !(digit / "x" / "u" / eolChar) . {
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return $3
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.replace("b", "\b")
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.replace("f", "\f")
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.replace("n", "\n")
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.replace("r", "\r")
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.replace("t", "\t")
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.replace("v", "\v")
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}
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zeroEscapeSequence: "\\0" !digit { return "\0"; }
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hexEscapeSequence: "\\x" hexDigit hexDigit {
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return String.fromCharCode(parseInt("0x" + $2 + $3));
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}
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unicodeEscapeSequence: "\\u" hexDigit hexDigit hexDigit hexDigit {
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return String.fromCharCode(parseInt("0x" + $2 + $3 + $4 + $5));
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}
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eolEscapeSequence: "\\" eol { return $2; }
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digit: [0-9]
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hexDigit: [0-9a-fA-F]
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letter: lowerCaseLetter / upperCaseLetter
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lowerCaseLetter: [a-z]
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upperCaseLetter: [A-Z]
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__: (whitespace / eol / comment)*
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/* Modelled after ECMA-262, 5th ed., 7.4. */
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comment "comment": singleLineComment / multiLineComment
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singleLineComment: "//" (!eolChar .)*
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multiLineComment: "/*" (!"*/" .)* "*/"
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/* Modelled after ECMA-262, 5th ed., 7.3. */
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eol "end of line": "\n" / "\r\n" / "\r" / "\u2028" / "\u2029"
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eolChar: [\n\r\u2028\u2029]
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/*
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* Modelled after ECMA-262, 5th ed., 7.2. \uFEFF should be between the
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* characters too, but it causes infinite loop in Rhino.
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*/
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whitespace "whitespace": [ \t\v\f\xA0\u1680\u180E\u2000-\u200A\u202F\u205F\u3000]
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@ -0,0 +1,460 @@
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(function() {
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var global = this;
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/* ===== Helpers ===== */
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global.grammarParserParses = function(input, expected) {
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global.parses(PEG.grammarParser, input, expected);
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};
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global.grammarParserDoesNotParse = function(input) {
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global.doesNotParse(PEG.grammarParser, input);
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}
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/* ===== Grammar Parser ===== */
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module("Grammar Parser");
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with (PEG.Grammar) {
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var literalEmpty = new Literal("");
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var literalAbcd = new Literal("abcd");
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var literalEfgh = new Literal("efgh");
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var literalIjkl = new Literal("ijkl");
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var choice = new Choice([literalAbcd, literalEmpty]);
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var notAbcd = new NotPredicate(literalAbcd);
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var notEfgh = new NotPredicate(literalEfgh);
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var notIjkl = new NotPredicate(literalIjkl);
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var sequenceEmpty = new Sequence([]);
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var sequenceNots = new Sequence([notAbcd, notEfgh, notIjkl]);
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var sequenceLiterals = new Sequence([literalAbcd, literalEfgh, literalIjkl]);
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function oneRuleGrammar(expression) {
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return { start: new PEG.Grammar.Rule("start", null, expression) };
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}
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var simpleGrammar = oneRuleGrammar(new Literal("abcd"));
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function identifierGrammar(identifier) {
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return oneRuleGrammar(new PEG.Grammar.RuleRef(identifier));
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}
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function literalGrammar(literal) {
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return oneRuleGrammar(new PEG.Grammar.Literal(literal));
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}
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function classGrammar(chars) {
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return oneRuleGrammar(new PEG.Grammar.Choice(
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PEG.ArrayUtils.map(
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chars.split(""),
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function(char) { return new PEG.Grammar.Literal(char); }
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)
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));
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}
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var anyGrammar = oneRuleGrammar(new Any());
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function actionGrammar(action) {
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return oneRuleGrammar(new PEG.Grammar.Action(new PEG.Grammar.Literal("a"), action));
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}
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/* Canonical grammar is "a: \"abcd\";\nb: \"efgh\";\nc: \"ijkl\";". */
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test("parses grammar", function() {
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grammarParserParses('a: "abcd"', { a: new Rule("a", null, literalAbcd) });
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grammarParserParses(
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'a: "abcd"\nb: "efgh"\nc: "ijkl"',
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{
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a: new Rule("a", null, literalAbcd),
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b: new Rule("b", null, literalEfgh),
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c: new Rule("c", null, literalIjkl)
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}
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);
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});
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/* Canonical rule is "a: \"abcd\"". */
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test("parses rule", function() {
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grammarParserParses(
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'start: "abcd" / "efgh" / "ijkl"',
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oneRuleGrammar(new Choice([literalAbcd, literalEfgh, literalIjkl]))
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);
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grammarParserParses(
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'start "start rule": "abcd" / "efgh" / "ijkl"',
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{
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start:
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new Rule(
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"start",
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"start rule",
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new Choice([literalAbcd, literalEfgh, literalIjkl])
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)
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}
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);
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});
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/* Canonical expression is "\"abcd\" / \"efgh\" / \"ijkl\"". */
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test("parses expression", function() {
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grammarParserParses(
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'start: "abcd" / "efgh" / "ijkl"',
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oneRuleGrammar(new Choice([literalAbcd, literalEfgh, literalIjkl]))
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);
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});
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/* Canonical choice is "\"abcd\" / \"efgh\" / \"ijkl\"". */
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test("parses choice", function() {
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grammarParserParses(
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'start: "abcd" "efgh" "ijkl"',
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oneRuleGrammar(sequenceLiterals)
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);
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grammarParserParses(
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'start: "abcd" "efgh" "ijkl" / "abcd" "efgh" "ijkl" / "abcd" "efgh" "ijkl"',
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oneRuleGrammar(new Choice([
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sequenceLiterals,
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sequenceLiterals,
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sequenceLiterals
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]))
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);
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});
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/* Canonical sequence is "\"abcd\" \"efgh\" \"ijkl\"". */
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test("parses sequence", function() {
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grammarParserParses(
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'start: { code }',
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oneRuleGrammar(new Action(sequenceEmpty, " code "))
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);
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grammarParserParses(
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'start: !"abcd" { code }',
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oneRuleGrammar(new Action(notAbcd, " code "))
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);
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grammarParserParses(
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'start: !"abcd" !"efgh" !"ijkl" { code }',
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oneRuleGrammar(new Action(sequenceNots, " code "))
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);
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grammarParserParses('start: ', oneRuleGrammar(sequenceEmpty));
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grammarParserParses('start: !"abcd"', oneRuleGrammar(notAbcd));
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grammarParserParses(
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'start: !"abcd" !"efgh" !"ijkl"',
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oneRuleGrammar(sequenceNots)
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);
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});
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/* Canonical prefixed is "!\"abcd\"". */
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test("parses prefixed", function() {
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grammarParserParses(
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'start: &"abcd"?',
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oneRuleGrammar(new NotPredicate(new NotPredicate(choice)))
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);
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grammarParserParses('start: !"abcd"?', oneRuleGrammar(new NotPredicate(choice)));
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grammarParserParses('start: "abcd"?', oneRuleGrammar(choice));
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});
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/* Canonical suffixed is "\"abcd\"?". */
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test("parses suffixed", function() {
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grammarParserParses('start: "abcd"?', oneRuleGrammar(choice));
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grammarParserParses('start: "abcd"*', oneRuleGrammar(new ZeroOrMore(literalAbcd)));
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grammarParserParses(
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'start: "abcd"+',
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oneRuleGrammar(new Action(
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new Sequence([literalAbcd, new ZeroOrMore(literalAbcd)]),
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function(first, rest) { return [first].concat(rest); }
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))
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);
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grammarParserParses('start: "abcd"', literalGrammar("abcd"));
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});
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/* Canonical primary is "\"abcd\"". */
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test("parses primary", function() {
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grammarParserParses('start: a', identifierGrammar("a"));
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grammarParserParses('start: "abcd"', literalGrammar("abcd"));
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grammarParserParses('start: .', anyGrammar);
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grammarParserParses('start: [a-d]', classGrammar("abcd"));
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grammarParserParses('start: ("abcd")', literalGrammar("abcd"));
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});
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/* Canonical action is "{ code }". */
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test("parses action", function() {
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grammarParserParses('start: "a" { code }', actionGrammar(" code "));
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});
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/* Canonical braced is "{ code }". */
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test("parses braced", function() {
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grammarParserParses('start: "a" {}', actionGrammar(""));
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grammarParserParses('start: "a" {a}', actionGrammar("a"));
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grammarParserParses('start: "a" {{a}}', actionGrammar("{a}"));
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grammarParserParses('start: "a" {aaa}', actionGrammar("aaa"));
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});
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/* Trivial character rules are not tested. */
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/* Canonical identifier is "a". */
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test("parses identifier", function() {
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grammarParserParses('start: a', identifierGrammar("a"));
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grammarParserParses('start: z', identifierGrammar("z"));
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grammarParserParses('start: A', identifierGrammar("A"));
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grammarParserParses('start: Z', identifierGrammar("Z"));
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grammarParserParses('start: _', identifierGrammar("_"));
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grammarParserParses('start: $', identifierGrammar("$"));
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grammarParserParses('start: aa', identifierGrammar("aa"));
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grammarParserParses('start: az', identifierGrammar("az"));
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grammarParserParses('start: aA', identifierGrammar("aA"));
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grammarParserParses('start: aZ', identifierGrammar("aZ"));
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grammarParserParses('start: a0', identifierGrammar("a0"));
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grammarParserParses('start: a9', identifierGrammar("a9"));
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grammarParserParses('start: a_', identifierGrammar("a_"));
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grammarParserParses('start: a$', identifierGrammar("a$"));
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grammarParserParses('start: abcd', identifierGrammar("abcd"));
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grammarParserParses('start: a\n', identifierGrammar("a"));
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});
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/* Canonical literal is "\"abcd\"". */
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test("parses literal", function() {
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grammarParserParses('start: "abcd"', literalGrammar("abcd"));
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grammarParserParses("start: 'abcd'", literalGrammar("abcd"));
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});
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/* Canonical doubleQuotedLiteral is "\"abcd\"". */
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test("parses doubleQuotedLiteral", function() {
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grammarParserParses('start: ""', literalGrammar(""));
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grammarParserParses('start: "a"', literalGrammar("a"));
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grammarParserParses('start: "abc"', literalGrammar("abc"));
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grammarParserParses('start: "abcd"\n', literalGrammar("abcd"));
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});
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/* Canonical doubleQuotedCharacter is "a". */
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test("parses doubleQuotedCharacter", function() {
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grammarParserParses('start: "a"', literalGrammar("a"));
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grammarParserParses('start: "\\n"', literalGrammar("\n"));
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grammarParserParses('start: "\\0"', literalGrammar("\0"));
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grammarParserParses('start: "\\x00"', literalGrammar("\x00"));
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grammarParserParses('start: "\\u0120"', literalGrammar("\u0120"));
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grammarParserParses('start: "\\\n"', literalGrammar("\n"));
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});
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/* Canonical simpleDoubleQuotedCharacter is "a". */
|
||||
test("parses simpleDoubleQuotedCharacter", function() {
|
||||
grammarParserParses('start: "a"', literalGrammar("a"));
|
||||
grammarParserParses('start: "\'"', literalGrammar("'"));
|
||||
grammarParserDoesNotParse('start: """');
|
||||
grammarParserDoesNotParse('start: "\\"');
|
||||
grammarParserDoesNotParse('start: "\n"');
|
||||
grammarParserDoesNotParse('start: "\r"');
|
||||
grammarParserDoesNotParse('start: "\u2028"');
|
||||
grammarParserDoesNotParse('start: "\u2029"');
|
||||
});
|
||||
|
||||
/* Canonical singleQuotedLiteral is "'abcd'". */
|
||||
test("parses singleQuotedLiteral", function() {
|
||||
grammarParserParses("start: ''", literalGrammar(""));
|
||||
grammarParserParses("start: 'a'", literalGrammar("a"));
|
||||
grammarParserParses("start: 'abc'", literalGrammar("abc"));
|
||||
|
||||
grammarParserParses("start: 'abcd'\n", literalGrammar("abcd"));
|
||||
});
|
||||
|
||||
/* Canonical singleQuotedCharacter is "a". */
|
||||
test("parses singleQuotedCharacter", function() {
|
||||
grammarParserParses("start: 'a'", literalGrammar("a"));
|
||||
grammarParserParses("start: '\\n'", literalGrammar("\n"));
|
||||
grammarParserParses("start: '\\0'", literalGrammar("\0"));
|
||||
grammarParserParses("start: '\\x00'", literalGrammar("\x00"));
|
||||
grammarParserParses("start: '\\u0120'", literalGrammar("\u0120"));
|
||||
grammarParserParses("start: '\\\n'", literalGrammar("\n"));
|
||||
});
|
||||
|
||||
/* Canonical simpleSingleQuotedCharacter is "a". */
|
||||
test("parses simpleSingleQuotedCharacter", function() {
|
||||
grammarParserParses("start: 'a'", literalGrammar("a"));
|
||||
grammarParserParses("start: '\"'", literalGrammar("\""));
|
||||
grammarParserDoesNotParse("start: '''");
|
||||
grammarParserDoesNotParse("start: '\\'");
|
||||
grammarParserDoesNotParse("start: '\n'");
|
||||
grammarParserDoesNotParse("start: '\r'");
|
||||
grammarParserDoesNotParse("start: '\u2028'");
|
||||
grammarParserDoesNotParse("start: '\u2029'");
|
||||
});
|
||||
|
||||
/* Canonical class is "[a-d]". */
|
||||
test("parses classCharacterRange", function() {
|
||||
grammarParserParses("start: []", classGrammar(""));
|
||||
grammarParserParses("start: [a-d]", classGrammar("abcd"));
|
||||
grammarParserParses("start: [a]", classGrammar("a"));
|
||||
grammarParserParses("start: [a-de-hi-l]", classGrammar("abcdefghijkl"));
|
||||
|
||||
grammarParserParses("start: [a-d]\n", classGrammar("abcd"));
|
||||
});
|
||||
|
||||
/* Canonical classCharacterRange is "a-d". */
|
||||
test("parses classCharacterRange", function() {
|
||||
grammarParserParses("start: [a-d]", classGrammar("abcd"));
|
||||
grammarParserParses("start: [a-a]", classGrammar("a"));
|
||||
grammarParserDoesNotParse("start: [b-a]");
|
||||
});
|
||||
|
||||
/* Canonical classCharacter is "a". */
|
||||
test("parses classCharacter", function() {
|
||||
grammarParserParses("start: [a]", classGrammar("a"));
|
||||
});
|
||||
|
||||
/* Canonical bracketDelimitedCharacter is "a". */
|
||||
test("parses bracketDelimitedCharacter", function() {
|
||||
grammarParserParses("start: [a]", classGrammar("a"));
|
||||
grammarParserParses("start: [\\n]", classGrammar("\n"));
|
||||
grammarParserParses("start: [\\0]", classGrammar("\0"));
|
||||
grammarParserParses("start: [\\x00]", classGrammar("\x00"));
|
||||
grammarParserParses("start: [\\u0120]", classGrammar("\u0120"));
|
||||
grammarParserParses("start: [\\\n]", classGrammar("\n"));
|
||||
});
|
||||
|
||||
/* Canonical simpleBracketDelimiedCharacter is "a". */
|
||||
test("parses simpleBracketDelimitedCharacter", function() {
|
||||
grammarParserParses("start: [a]", classGrammar("a"));
|
||||
grammarParserParses("start: [[]", classGrammar("["));
|
||||
grammarParserDoesNotParse("start: []]");
|
||||
grammarParserDoesNotParse("start: [\\]");
|
||||
grammarParserDoesNotParse("start: [\n]");
|
||||
grammarParserDoesNotParse("start: [\r]");
|
||||
grammarParserDoesNotParse("start: [\u2028]");
|
||||
grammarParserDoesNotParse("start: [\u2029]");
|
||||
});
|
||||
|
||||
/* Canonical simpleEscapeSequence is "\\n". */
|
||||
test("parses simpleEscapeSequence", function() {
|
||||
grammarParserParses('start: "\\\'"', literalGrammar("'"));
|
||||
grammarParserParses('start: "\\""', literalGrammar("\""));
|
||||
grammarParserParses('start: "\\\\"', literalGrammar("\\"));
|
||||
grammarParserParses('start: "\\b"', literalGrammar("\b"));
|
||||
grammarParserParses('start: "\\f"', literalGrammar("\f"));
|
||||
grammarParserParses('start: "\\n"', literalGrammar("\n"));
|
||||
grammarParserParses('start: "\\r"', literalGrammar("\r"));
|
||||
grammarParserParses('start: "\\t"', literalGrammar("\t"));
|
||||
grammarParserParses('start: "\\v"', literalGrammar("\v"));
|
||||
|
||||
grammarParserParses('start: "\\a"', literalGrammar("a"));
|
||||
});
|
||||
|
||||
/* Canonical zeroEscapeSequence is "\\0". */
|
||||
test("parses zeroEscapeSequence", function() {
|
||||
grammarParserParses('start: "\\0"', literalGrammar("\0"));
|
||||
grammarParserDoesNotParse('start: "\\00"');
|
||||
grammarParserDoesNotParse('start: "\\09"');
|
||||
});
|
||||
|
||||
/* Canonical hexEscapeSequence is "\\x00". */
|
||||
test("parses hexEscapeSequence", function() {
|
||||
grammarParserParses('start: "\\x00"', literalGrammar("\x00"));
|
||||
grammarParserParses('start: "\\x09"', literalGrammar("\x09"));
|
||||
grammarParserParses('start: "\\x0a"', literalGrammar("\x0a"));
|
||||
grammarParserParses('start: "\\x0f"', literalGrammar("\x0f"));
|
||||
grammarParserParses('start: "\\x0A"', literalGrammar("\x0A"));
|
||||
grammarParserParses('start: "\\x0F"', literalGrammar("\x0F"));
|
||||
grammarParserDoesNotParse('start: "\\x0"');
|
||||
grammarParserParses('start: "\\x000"', literalGrammar("\x000"));
|
||||
});
|
||||
|
||||
/* Canonical unicodeEscapeSequence is "\\u0120". */
|
||||
test("parses unicodeEscapeSequence", function() {
|
||||
grammarParserParses('start: "\\u0120"', literalGrammar("\u0120"));
|
||||
grammarParserParses('start: "\\u0129"', literalGrammar("\u0129"));
|
||||
grammarParserParses('start: "\\u012a"', literalGrammar("\u012a"));
|
||||
grammarParserParses('start: "\\u012f"', literalGrammar("\u012f"));
|
||||
grammarParserParses('start: "\\u012A"', literalGrammar("\u012A"));
|
||||
grammarParserParses('start: "\\u012F"', literalGrammar("\u012F"));
|
||||
grammarParserDoesNotParse('start: "\\u012"');
|
||||
grammarParserParses('start: "\\u01234"', literalGrammar("\u01234"));
|
||||
});
|
||||
|
||||
/* Canonical eolEscapeSequence is "\\\n". */
|
||||
test("parses eolEscapeSequence", function() {
|
||||
grammarParserParses('start: "\\\n"', literalGrammar("\n"));
|
||||
grammarParserParses('start: "\\\r\n"', literalGrammar("\r\n"));
|
||||
grammarParserParses('start: "\\\r"', literalGrammar("\r"));
|
||||
grammarParserParses('start: "\\\u2028"', literalGrammar("\u2028"));
|
||||
grammarParserParses('start: "\\\u2029"', literalGrammar("\u2029"));
|
||||
});
|
||||
|
||||
/* Canonical __ is "\n". */
|
||||
test("parses __", function() {
|
||||
grammarParserParses('start:"abcd"', simpleGrammar);
|
||||
grammarParserParses('start: "abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\n"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:/* comment */"abcd"', simpleGrammar);
|
||||
grammarParserParses('start: "abcd"', simpleGrammar);
|
||||
});
|
||||
|
||||
/* Trivial character class rules are not tested. */
|
||||
|
||||
/* Canonical comment is "\/* comment *\/". */
|
||||
test("parses comment", function() {
|
||||
grammarParserParses('start:// comment\n"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:/* comment */"abcd"', simpleGrammar);
|
||||
});
|
||||
/* Canonical singleLineComment is "// comment". */
|
||||
test("parses singleLineComment", function() {
|
||||
grammarParserParses('start://\n"abcd"', simpleGrammar);
|
||||
grammarParserParses('start://a\n"abcd"', simpleGrammar);
|
||||
grammarParserParses('start://aaa\n"abcd"', simpleGrammar);
|
||||
grammarParserParses('start: "abcd"//', simpleGrammar);
|
||||
});
|
||||
|
||||
/* Canonical multiLineComment is "\/* comment *\/". */
|
||||
test("parses multiLineComment", function() {
|
||||
grammarParserParses('start:/**/"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:/*a*/"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:/*aaa*/"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:/*\n*/"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:/***/"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:/*a/*/"abcd"', simpleGrammar);
|
||||
|
||||
grammarParserDoesNotParse('start:/*"abcd"');
|
||||
grammarParserDoesNotParse('start:/*/"abcd"');
|
||||
grammarParserDoesNotParse('start:/*/**/*/"abcd"');
|
||||
});
|
||||
|
||||
/* Canonical eol is "\n". */
|
||||
test("parses eol", function() {
|
||||
grammarParserParses('start:\n"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\r\n"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\r"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2028"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2029"abcd"', simpleGrammar);
|
||||
});
|
||||
|
||||
/* Canonical eolChar is "\n". */
|
||||
test("parses eolChar", function() {
|
||||
grammarParserParses('start:\n"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\r"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2028"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2029"abcd"', simpleGrammar);
|
||||
});
|
||||
|
||||
/* Canonical whitespace is " ". */
|
||||
test("parses whitespace", function() {
|
||||
grammarParserParses('start:\t"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\v"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\f"abcd"', simpleGrammar);
|
||||
grammarParserParses('start: "abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\xA0"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u1680"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u180E"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2000"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2001"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2002"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2003"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2004"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2005"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2006"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2007"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2008"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u2009"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u200A"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u202F"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u205F"abcd"', simpleGrammar);
|
||||
grammarParserParses('start:\u3000"abcd"', simpleGrammar);
|
||||
});
|
||||
}
|
||||
|
||||
})();
|
||||
Loading…
Reference in New Issue