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@ -236,252 +236,252 @@ describe("PEG.js grammar parser", function() {
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});
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});
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// Canonical Grammar is "a = \"abcd\"; b = \"efgh\"; c = \"ijkl\";".
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// Canonical Grammar is "a = 'abcd'; b = 'efgh'; c = 'ijkl';".
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it("parses Grammar", function() {
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expect('\na = "abcd";\n').toParseAs(
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expect("\na = 'abcd';\n").toParseAs(
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{ type: "grammar", initializer: null, rules: [ruleA] }
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);
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expect('\na = "abcd";\nb = "efgh";\nc = "ijkl";\n').toParseAs(
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expect("\na = 'abcd';\nb = 'efgh';\nc = 'ijkl';\n").toParseAs(
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{ type: "grammar", initializer: null, rules: [ruleA, ruleB, ruleC] }
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);
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expect('\n{ code };\na = "abcd";\n').toParseAs(
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expect("\n{ code };\na = 'abcd';\n").toParseAs(
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{ type: "grammar", initializer: initializer, rules: [ruleA] }
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);
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});
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// Canonical Initializer is "{ code }".
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it("parses Initializer", function() {
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expect('{ code };start = "abcd"').toParseAs(
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expect("{ code };start = 'abcd'").toParseAs(
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{ type: "grammar", initializer: initializer, rules: [ruleStart] }
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);
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});
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// Canonical Rule is "a = \"abcd\";".
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// Canonical Rule is "a = 'abcd';".
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it("parses Rule", function() {
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expect('start\n=\n"abcd";').toParseAs(
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expect("start\n=\n'abcd';").toParseAs(
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oneRuleGrammar(literalAbcd)
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);
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expect('start\n"start rule"\n=\n"abcd";').toParseAs(
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expect("start\n'start rule'\n=\n'abcd';").toParseAs(
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oneRuleGrammar(named)
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);
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});
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// Canonical Expression is "\"abcd\"".
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// Canonical Expression is "'abcd'".
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it("parses Expression", function() {
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expect('start = "abcd" / "efgh" / "ijkl"').toParseAs(
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expect("start = 'abcd' / 'efgh' / 'ijkl'").toParseAs(
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oneRuleGrammar(choice)
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);
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});
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// Canonical ChoiceExpression is "\"abcd\" / \"efgh\" / \"ijkl\"".
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// Canonical ChoiceExpression is "'abcd' / 'efgh' / 'ijkl'".
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it("parses ChoiceExpression", function() {
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expect('start = "abcd" { code }').toParseAs(
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expect("start = 'abcd' { code }").toParseAs(
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oneRuleGrammar(actionAbcd)
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);
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expect('start = "abcd" { code }\n/\n"efgh" { code }').toParseAs(
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expect("start = 'abcd' { code }\n/\n'efgh' { code }").toParseAs(
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oneRuleGrammar(choice2)
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);
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expect(
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'start = "abcd" { code }\n/\n"efgh" { code }\n/\n"ijkl" { code }\n/\n"mnop" { code }'
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"start = 'abcd' { code }\n/\n'efgh' { code }\n/\n'ijkl' { code }\n/\n'mnop' { code }"
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).toParseAs(
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oneRuleGrammar(choice4)
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);
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});
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// Canonical ActionExpression is "\"abcd\" { code }".
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// Canonical ActionExpression is "'abcd' { code }".
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it("parses ActionExpression", function() {
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expect('start = "abcd" "efgh" "ijkl"').toParseAs(
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expect("start = 'abcd' 'efgh' 'ijkl'").toParseAs(
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oneRuleGrammar(sequence)
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);
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expect('start = "abcd" "efgh" "ijkl"\n{ code }').toParseAs(
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expect("start = 'abcd' 'efgh' 'ijkl'\n{ code }").toParseAs(
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oneRuleGrammar(actionSequence)
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);
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});
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// Canonical SequenceExpression is "\"abcd\" \"efgh\" \"ijkl\"".
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// Canonical SequenceExpression is "'abcd' 'efgh' 'ijkl'".
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it("parses SequenceExpression", function() {
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expect('start = a:"abcd"').toParseAs(
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expect("start = a:'abcd'").toParseAs(
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oneRuleGrammar(labeledAbcd)
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);
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expect('start = a:"abcd"\nb:"efgh"').toParseAs(
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expect("start = a:'abcd'\nb:'efgh'").toParseAs(
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oneRuleGrammar(sequence2)
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);
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expect('start = a:"abcd"\nb:"efgh"\nc:"ijkl"\nd:"mnop"').toParseAs(
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expect("start = a:'abcd'\nb:'efgh'\nc:'ijkl'\nd:'mnop'").toParseAs(
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oneRuleGrammar(sequence4)
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);
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});
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// Canonical LabeledExpression is "a:\"abcd\"".
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// Canonical LabeledExpression is "a:'abcd'".
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it("parses LabeledExpression", function() {
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expect('start = a\n:\n!"abcd"').toParseAs(oneRuleGrammar(labeledSimpleNot));
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expect('start = !"abcd"' ).toParseAs(oneRuleGrammar(simpleNotAbcd));
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expect("start = a\n:\n!'abcd'").toParseAs(oneRuleGrammar(labeledSimpleNot));
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expect("start = !'abcd'" ).toParseAs(oneRuleGrammar(simpleNotAbcd));
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});
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// Canonical PrefixedExpression is "!\"abcd\"".
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// Canonical PrefixedExpression is "!'abcd'".
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it("parses PrefixedExpression", function() {
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expect('start = !\n"abcd"?' ).toParseAs(oneRuleGrammar(simpleNotOptional));
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expect('start = "abcd"?' ).toParseAs(oneRuleGrammar(optional));
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expect("start = !\n'abcd'?" ).toParseAs(oneRuleGrammar(simpleNotOptional));
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expect("start = 'abcd'?" ).toParseAs(oneRuleGrammar(optional));
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});
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// Canonical PrefixedOperator is "!".
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it("parses PrefixedOperator", function() {
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expect('start = $"abcd"?').toParseAs(oneRuleGrammar(textOptional));
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expect('start = &"abcd"?').toParseAs(oneRuleGrammar(simpleAndOptional));
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expect('start = !"abcd"?').toParseAs(oneRuleGrammar(simpleNotOptional));
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expect("start = $'abcd'?").toParseAs(oneRuleGrammar(textOptional));
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expect("start = &'abcd'?").toParseAs(oneRuleGrammar(simpleAndOptional));
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expect("start = !'abcd'?").toParseAs(oneRuleGrammar(simpleNotOptional));
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});
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// Canonical SuffixedExpression is "\"ebcd\"?".
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// Canonical SuffixedExpression is "'ebcd'?".
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it("parses SuffixedExpression", function() {
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expect('start = "abcd"\n?').toParseAs(oneRuleGrammar(optional));
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expect('start = "abcd"' ).toParseAs(oneRuleGrammar(literalAbcd));
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expect("start = 'abcd'\n?").toParseAs(oneRuleGrammar(optional));
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expect("start = 'abcd'" ).toParseAs(oneRuleGrammar(literalAbcd));
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});
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// Canonical SuffixedOperator is "?".
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it("parses SuffixedOperator", function() {
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expect('start = "abcd"?').toParseAs(oneRuleGrammar(optional));
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expect('start = "abcd"*').toParseAs(oneRuleGrammar(zeroOrMore));
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expect('start = "abcd"+').toParseAs(oneRuleGrammar(oneOrMore));
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expect("start = 'abcd'?").toParseAs(oneRuleGrammar(optional));
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expect("start = 'abcd'*").toParseAs(oneRuleGrammar(zeroOrMore));
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expect("start = 'abcd'+").toParseAs(oneRuleGrammar(oneOrMore));
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});
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// Canonical PrimaryExpression is "\"abcd\"".
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// Canonical PrimaryExpression is "'abcd'".
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it("parses PrimaryExpression", function() {
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expect('start = "abcd"' ).toParseAs(trivialGrammar);
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expect('start = [a-d]' ).toParseAs(classGrammar([["a", "d"]], false, false));
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expect('start = .' ).toParseAs(anyGrammar());
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expect('start = a' ).toParseAs(ruleRefGrammar("a"));
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expect('start = &{ code }').toParseAs(oneRuleGrammar(semanticAnd));
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expect("start = 'abcd'" ).toParseAs(trivialGrammar);
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expect("start = [a-d]" ).toParseAs(classGrammar([["a", "d"]], false, false));
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expect("start = ." ).toParseAs(anyGrammar());
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expect("start = a" ).toParseAs(ruleRefGrammar("a"));
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expect("start = &{ code }").toParseAs(oneRuleGrammar(semanticAnd));
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expect('start = (\na:"abcd"\n)' ).toParseAs(oneRuleGrammar(groupLabeled));
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expect('start = (\n"abcd" "efgh" "ijkl"\n)').toParseAs(oneRuleGrammar(groupSequence));
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expect('start = (\n"abcd"\n)' ).toParseAs(trivialGrammar);
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expect("start = (\na:'abcd'\n)" ).toParseAs(oneRuleGrammar(groupLabeled));
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expect("start = (\n'abcd' 'efgh' 'ijkl'\n)").toParseAs(oneRuleGrammar(groupSequence));
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expect("start = (\n'abcd'\n)" ).toParseAs(trivialGrammar);
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});
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// Canonical RuleReferenceExpression is "a".
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it("parses RuleReferenceExpression", function() {
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expect('start = a').toParseAs(ruleRefGrammar("a"));
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expect("start = a").toParseAs(ruleRefGrammar("a"));
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expect('start = a\n=' ).toFailToParse();
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expect('start = a\n"abcd"\n=').toFailToParse();
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expect("start = a\n=" ).toFailToParse();
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expect("start = a\n'abcd'\n=").toFailToParse();
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});
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// Canonical SemanticPredicateExpression is "!{ code }".
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it("parses SemanticPredicateExpression", function() {
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expect('start = !\n{ code }').toParseAs(oneRuleGrammar(semanticNot));
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expect("start = !\n{ code }").toParseAs(oneRuleGrammar(semanticNot));
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});
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// Canonical SemanticPredicateOperator is "!".
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it("parses SemanticPredicateOperator", function() {
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expect('start = &{ code }').toParseAs(oneRuleGrammar(semanticAnd));
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expect('start = !{ code }').toParseAs(oneRuleGrammar(semanticNot));
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expect("start = &{ code }").toParseAs(oneRuleGrammar(semanticAnd));
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expect("start = !{ code }").toParseAs(oneRuleGrammar(semanticNot));
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});
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// The SourceCharacter rule is not tested.
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// Canonical WhiteSpace is " ".
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it("parses WhiteSpace", function() {
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expect('start =\t"abcd"' ).toParseAs(trivialGrammar);
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expect('start =\v"abcd"' ).toParseAs(trivialGrammar);
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expect('start =\f"abcd"' ).toParseAs(trivialGrammar);
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expect('start = "abcd"' ).toParseAs(trivialGrammar);
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expect('start =\u00A0"abcd"').toParseAs(trivialGrammar);
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expect('start =\uFEFF"abcd"').toParseAs(trivialGrammar);
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expect('start =\u1680"abcd"').toParseAs(trivialGrammar);
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expect("start =\t'abcd'" ).toParseAs(trivialGrammar);
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expect("start =\v'abcd'" ).toParseAs(trivialGrammar);
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expect("start =\f'abcd'" ).toParseAs(trivialGrammar);
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expect("start = 'abcd'" ).toParseAs(trivialGrammar);
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expect("start =\u00A0'abcd'").toParseAs(trivialGrammar);
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expect("start =\uFEFF'abcd'").toParseAs(trivialGrammar);
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expect("start =\u1680'abcd'").toParseAs(trivialGrammar);
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});
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// Canonical LineTerminator is "\n".
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it("parses LineTerminator", function() {
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expect('start = "\n"' ).toFailToParse();
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expect('start = "\r"' ).toFailToParse();
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expect('start = "\u2028"').toFailToParse();
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expect('start = "\u2029"').toFailToParse();
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expect("start = '\n'" ).toFailToParse();
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expect("start = '\r'" ).toFailToParse();
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expect("start = '\u2028'").toFailToParse();
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expect("start = '\u2029'").toFailToParse();
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});
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// Canonical LineTerminatorSequence is "\r\n".
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it("parses LineTerminatorSequence", function() {
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expect('start =\n"abcd"' ).toParseAs(trivialGrammar);
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expect('start =\r\n"abcd"' ).toParseAs(trivialGrammar);
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expect('start =\r"abcd"' ).toParseAs(trivialGrammar);
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expect('start =\u2028"abcd"').toParseAs(trivialGrammar);
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expect('start =\u2029"abcd"').toParseAs(trivialGrammar);
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expect("start =\n'abcd'" ).toParseAs(trivialGrammar);
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expect("start =\r\n'abcd'" ).toParseAs(trivialGrammar);
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expect("start =\r'abcd'" ).toParseAs(trivialGrammar);
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expect("start =\u2028'abcd'").toParseAs(trivialGrammar);
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expect("start =\u2029'abcd'").toParseAs(trivialGrammar);
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});
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// Canonical Comment is "/* comment */".
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it("parses Comment", function() {
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expect('start =// comment\n"abcd"' ).toParseAs(trivialGrammar);
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expect('start =/* comment */"abcd"').toParseAs(trivialGrammar);
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expect("start =// comment\n'abcd'" ).toParseAs(trivialGrammar);
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expect("start =/* comment */'abcd'").toParseAs(trivialGrammar);
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});
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// Canonical MultiLineComment is "/* comment */".
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it("parses MultiLineComment", function() {
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expect('start =/**/"abcd"' ).toParseAs(trivialGrammar);
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expect('start =/*a*/"abcd"' ).toParseAs(trivialGrammar);
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expect('start =/*abc*/"abcd"').toParseAs(trivialGrammar);
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expect("start =/**/'abcd'" ).toParseAs(trivialGrammar);
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expect("start =/*a*/'abcd'" ).toParseAs(trivialGrammar);
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expect("start =/*abc*/'abcd'").toParseAs(trivialGrammar);
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expect('start =/**/*/"abcd"').toFailToParse();
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expect("start =/**/*/'abcd'").toFailToParse();
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});
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// Canonical MultiLineCommentNoLineTerminator is "/* comment */".
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it("parses MultiLineCommentNoLineTerminator", function() {
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expect('a = "abcd"/**/\r\nb = "efgh"' ).toParseAs(twoRuleGrammar);
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expect('a = "abcd"/*a*/\r\nb = "efgh"' ).toParseAs(twoRuleGrammar);
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expect('a = "abcd"/*abc*/\r\nb = "efgh"').toParseAs(twoRuleGrammar);
|
|
|
|
|
expect("a = 'abcd'/**/\r\nb = 'efgh'" ).toParseAs(twoRuleGrammar);
|
|
|
|
|
expect("a = 'abcd'/*a*/\r\nb = 'efgh'" ).toParseAs(twoRuleGrammar);
|
|
|
|
|
expect("a = 'abcd'/*abc*/\r\nb = 'efgh'").toParseAs(twoRuleGrammar);
|
|
|
|
|
|
|
|
|
|
expect('a = "abcd"/**/*/\r\nb = "efgh"').toFailToParse();
|
|
|
|
|
expect('a = "abcd"/*\n*/\r\nb = "efgh"').toFailToParse();
|
|
|
|
|
expect("a = 'abcd'/**/*/\r\nb = 'efgh'").toFailToParse();
|
|
|
|
|
expect("a = 'abcd'/*\n*/\r\nb = 'efgh'").toFailToParse();
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical SingleLineComment is "// comment".
|
|
|
|
|
it("parses SingleLineComment", function() {
|
|
|
|
|
expect('start =//\n"abcd"' ).toParseAs(trivialGrammar);
|
|
|
|
|
expect('start =//a\n"abcd"' ).toParseAs(trivialGrammar);
|
|
|
|
|
expect('start =//abc\n"abcd"').toParseAs(trivialGrammar);
|
|
|
|
|
expect("start =//\n'abcd'" ).toParseAs(trivialGrammar);
|
|
|
|
|
expect("start =//a\n'abcd'" ).toParseAs(trivialGrammar);
|
|
|
|
|
expect("start =//abc\n'abcd'").toParseAs(trivialGrammar);
|
|
|
|
|
|
|
|
|
|
expect('start =//\n@\n"abcd"').toFailToParse();
|
|
|
|
|
expect("start =//\n@\n'abcd'").toFailToParse();
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical Identifier is "a".
|
|
|
|
|
it("parses Identifier", function() {
|
|
|
|
|
expect('start = a:"abcd"').toParseAs(oneRuleGrammar(labeledAbcd));
|
|
|
|
|
expect("start = a:'abcd'").toParseAs(oneRuleGrammar(labeledAbcd));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical IdentifierName is "a".
|
|
|
|
|
it("parses IdentifierName", function() {
|
|
|
|
|
expect('start = a' ).toParseAs(ruleRefGrammar("a"));
|
|
|
|
|
expect('start = ab' ).toParseAs(ruleRefGrammar("ab"));
|
|
|
|
|
expect('start = abcd').toParseAs(ruleRefGrammar("abcd"));
|
|
|
|
|
expect("start = a" ).toParseAs(ruleRefGrammar("a"));
|
|
|
|
|
expect("start = ab" ).toParseAs(ruleRefGrammar("ab"));
|
|
|
|
|
expect("start = abcd").toParseAs(ruleRefGrammar("abcd"));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical IdentifierStart is "a".
|
|
|
|
|
it("parses IdentifierStart", function() {
|
|
|
|
|
expect('start = a' ).toParseAs(ruleRefGrammar("a"));
|
|
|
|
|
expect('start = $' ).toParseAs(ruleRefGrammar("$"));
|
|
|
|
|
expect('start = _' ).toParseAs(ruleRefGrammar("_"));
|
|
|
|
|
expect('start = \\u0061').toParseAs(ruleRefGrammar("a"));
|
|
|
|
|
expect("start = a" ).toParseAs(ruleRefGrammar("a"));
|
|
|
|
|
expect("start = $" ).toParseAs(ruleRefGrammar("$"));
|
|
|
|
|
expect("start = _" ).toParseAs(ruleRefGrammar("_"));
|
|
|
|
|
expect("start = \\u0061").toParseAs(ruleRefGrammar("a"));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical IdentifierPart is "a".
|
|
|
|
|
it("parses IdentifierPart", function() {
|
|
|
|
|
expect('start = aa' ).toParseAs(ruleRefGrammar("aa"));
|
|
|
|
|
expect('start = a\u0300').toParseAs(ruleRefGrammar("a\u0300"));
|
|
|
|
|
expect('start = a0' ).toParseAs(ruleRefGrammar("a0"));
|
|
|
|
|
expect('start = a\u203F').toParseAs(ruleRefGrammar("a\u203F"));
|
|
|
|
|
expect('start = a\u200C').toParseAs(ruleRefGrammar("a\u200C"));
|
|
|
|
|
expect('start = a\u200D').toParseAs(ruleRefGrammar("a\u200D"));
|
|
|
|
|
expect("start = aa" ).toParseAs(ruleRefGrammar("aa"));
|
|
|
|
|
expect("start = a\u0300").toParseAs(ruleRefGrammar("a\u0300"));
|
|
|
|
|
expect("start = a0" ).toParseAs(ruleRefGrammar("a0"));
|
|
|
|
|
expect("start = a\u203F").toParseAs(ruleRefGrammar("a\u203F"));
|
|
|
|
|
expect("start = a\u200C").toParseAs(ruleRefGrammar("a\u200C"));
|
|
|
|
|
expect("start = a\u200D").toParseAs(ruleRefGrammar("a\u200D"));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Unicode rules and reserved word rules are not tested.
|
|
|
|
|
|
|
|
|
|
// Canonical LiteralMatcher is "\"abcd\"".
|
|
|
|
|
// Canonical LiteralMatcher is "'abcd'".
|
|
|
|
|
it("parses LiteralMatcher", function() {
|
|
|
|
|
expect('start = "abcd"' ).toParseAs(literalGrammar("abcd", false));
|
|
|
|
|
expect('start = "abcd"i').toParseAs(literalGrammar("abcd", true));
|
|
|
|
|
expect("start = 'abcd'" ).toParseAs(literalGrammar("abcd", false));
|
|
|
|
|
expect("start = 'abcd'i").toParseAs(literalGrammar("abcd", true));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical StringLiteral is "\"abcd\"".
|
|
|
|
|
// Canonical StringLiteral is "'abcd'".
|
|
|
|
|
it("parses StringLiteral", function() {
|
|
|
|
|
expect('start = ""' ).toParseAs(literalGrammar("", false));
|
|
|
|
|
expect('start = "a"' ).toParseAs(literalGrammar("a", false));
|
|
|
|
|
expect('start = "abc"').toParseAs(literalGrammar("abc", false));
|
|
|
|
|
expect("start = \"\"" ).toParseAs(literalGrammar("", false));
|
|
|
|
|
expect("start = \"a\"" ).toParseAs(literalGrammar("a", false));
|
|
|
|
|
expect("start = \"abc\"").toParseAs(literalGrammar("abc", false));
|
|
|
|
|
|
|
|
|
|
expect("start = ''" ).toParseAs(literalGrammar("", false));
|
|
|
|
|
expect("start = 'a'" ).toParseAs(literalGrammar("a", false));
|
|
|
|
|
@ -490,13 +490,13 @@ describe("PEG.js grammar parser", function() {
|
|
|
|
|
|
|
|
|
|
// Canonical DoubleStringCharacter is "a".
|
|
|
|
|
it("parses DoubleStringCharacter", function() {
|
|
|
|
|
expect('start = "a"' ).toParseAs(literalGrammar("a", false));
|
|
|
|
|
expect('start = "\\n"' ).toParseAs(literalGrammar("\n", false));
|
|
|
|
|
expect('start = "\\\n"').toParseAs(literalGrammar("", false));
|
|
|
|
|
expect("start = \"a\"" ).toParseAs(literalGrammar("a", false));
|
|
|
|
|
expect("start = \"\\n\"" ).toParseAs(literalGrammar("\n", false));
|
|
|
|
|
expect("start = \"\\\n\"").toParseAs(literalGrammar("", false));
|
|
|
|
|
|
|
|
|
|
expect('start = """' ).toFailToParse();
|
|
|
|
|
expect('start = "\\"').toFailToParse();
|
|
|
|
|
expect('start = "\n"').toFailToParse();
|
|
|
|
|
expect("start = \"\"\"").toFailToParse();
|
|
|
|
|
expect("start = \"\\\"").toFailToParse();
|
|
|
|
|
expect("start = \"\n\"").toFailToParse();
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical SingleStringCharacter is "a".
|
|
|
|
|
@ -512,92 +512,92 @@ describe("PEG.js grammar parser", function() {
|
|
|
|
|
|
|
|
|
|
// Canonical CharacterClassMatcher is "[a-d]".
|
|
|
|
|
it("parses CharacterClassMatcher", function() {
|
|
|
|
|
expect('start = []').toParseAs(
|
|
|
|
|
expect("start = []").toParseAs(
|
|
|
|
|
classGrammar([], false, false)
|
|
|
|
|
);
|
|
|
|
|
expect('start = [a-d]').toParseAs(
|
|
|
|
|
expect("start = [a-d]").toParseAs(
|
|
|
|
|
classGrammar([["a", "d"]], false, false)
|
|
|
|
|
);
|
|
|
|
|
expect('start = [a]').toParseAs(
|
|
|
|
|
expect("start = [a]").toParseAs(
|
|
|
|
|
classGrammar(["a"], false, false)
|
|
|
|
|
);
|
|
|
|
|
expect('start = [a-de-hi-l]').toParseAs(
|
|
|
|
|
expect("start = [a-de-hi-l]").toParseAs(
|
|
|
|
|
classGrammar(
|
|
|
|
|
[["a", "d"], ["e", "h"], ["i", "l"]],
|
|
|
|
|
false,
|
|
|
|
|
false
|
|
|
|
|
)
|
|
|
|
|
);
|
|
|
|
|
expect('start = [^a-d]').toParseAs(
|
|
|
|
|
expect("start = [^a-d]").toParseAs(
|
|
|
|
|
classGrammar([["a", "d"]], true, false)
|
|
|
|
|
);
|
|
|
|
|
expect('start = [a-d]i').toParseAs(
|
|
|
|
|
expect("start = [a-d]i").toParseAs(
|
|
|
|
|
classGrammar([["a", "d"]], false, true)
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
expect('start = [\\\n]').toParseAs(
|
|
|
|
|
expect("start = [\\\n]").toParseAs(
|
|
|
|
|
classGrammar([], false, false)
|
|
|
|
|
);
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical ClassCharacterRange is "a-d".
|
|
|
|
|
it("parses ClassCharacterRange", function() {
|
|
|
|
|
expect('start = [a-d]').toParseAs(classGrammar([["a", "d"]], false, false));
|
|
|
|
|
expect("start = [a-d]").toParseAs(classGrammar([["a", "d"]], false, false));
|
|
|
|
|
|
|
|
|
|
expect('start = [a-a]').toParseAs(classGrammar([["a", "a"]], false, false));
|
|
|
|
|
expect('start = [b-a]').toFailToParse({
|
|
|
|
|
expect("start = [a-a]").toParseAs(classGrammar([["a", "a"]], false, false));
|
|
|
|
|
expect("start = [b-a]").toFailToParse({
|
|
|
|
|
message: "Invalid character range: b-a."
|
|
|
|
|
});
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical ClassCharacter is "a".
|
|
|
|
|
it("parses ClassCharacter", function() {
|
|
|
|
|
expect('start = [a]' ).toParseAs(classGrammar(["a"], false, false));
|
|
|
|
|
expect('start = [\\n]' ).toParseAs(classGrammar(["\n"], false, false));
|
|
|
|
|
expect('start = [\\\n]').toParseAs(classGrammar([], false, false));
|
|
|
|
|
expect("start = [a]" ).toParseAs(classGrammar(["a"], false, false));
|
|
|
|
|
expect("start = [\\n]" ).toParseAs(classGrammar(["\n"], false, false));
|
|
|
|
|
expect("start = [\\\n]").toParseAs(classGrammar([], false, false));
|
|
|
|
|
|
|
|
|
|
expect('start = []]' ).toFailToParse();
|
|
|
|
|
expect('start = [\\]').toFailToParse();
|
|
|
|
|
expect('start = [\n]').toFailToParse();
|
|
|
|
|
expect("start = []]" ).toFailToParse();
|
|
|
|
|
expect("start = [\\]").toFailToParse();
|
|
|
|
|
expect("start = [\n]").toFailToParse();
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical LineContinuation is "\\\n".
|
|
|
|
|
it("parses LineContinuation", function() {
|
|
|
|
|
expect('start = "\\\r\n"').toParseAs(literalGrammar("", false));
|
|
|
|
|
expect("start = '\\\r\n'").toParseAs(literalGrammar("", false));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical EscapeSequence is "n".
|
|
|
|
|
it("parses EscapeSequence", function() {
|
|
|
|
|
expect('start = "\\n"' ).toParseAs(literalGrammar("\n", false));
|
|
|
|
|
expect('start = "\\0"' ).toParseAs(literalGrammar("\x00", false));
|
|
|
|
|
expect('start = "\\xFF"' ).toParseAs(literalGrammar("\xFF", false));
|
|
|
|
|
expect('start = "\\uFFFF"').toParseAs(literalGrammar("\uFFFF", false));
|
|
|
|
|
expect("start = '\\n'" ).toParseAs(literalGrammar("\n", false));
|
|
|
|
|
expect("start = '\\0'" ).toParseAs(literalGrammar("\x00", false));
|
|
|
|
|
expect("start = '\\xFF'" ).toParseAs(literalGrammar("\xFF", false));
|
|
|
|
|
expect("start = '\\uFFFF'").toParseAs(literalGrammar("\uFFFF", false));
|
|
|
|
|
|
|
|
|
|
expect('start = "\\09"').toFailToParse();
|
|
|
|
|
expect("start = '\\09'").toFailToParse();
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical CharacterEscapeSequence is "n".
|
|
|
|
|
it("parses CharacterEscapeSequence", function() {
|
|
|
|
|
expect('start = "\\n"').toParseAs(literalGrammar("\n", false));
|
|
|
|
|
expect('start = "\\a"').toParseAs(literalGrammar("a", false));
|
|
|
|
|
expect("start = '\\n'").toParseAs(literalGrammar("\n", false));
|
|
|
|
|
expect("start = '\\a'").toParseAs(literalGrammar("a", false));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical SingleEscapeCharacter is "n".
|
|
|
|
|
it("parses SingleEscapeCharacter", function() {
|
|
|
|
|
expect('start = "\\\'"').toParseAs(literalGrammar("'", false));
|
|
|
|
|
expect('start = "\\""' ).toParseAs(literalGrammar('"', false));
|
|
|
|
|
expect('start = "\\\\"').toParseAs(literalGrammar("\\", false));
|
|
|
|
|
expect('start = "\\b"' ).toParseAs(literalGrammar("\b", false));
|
|
|
|
|
expect('start = "\\f"' ).toParseAs(literalGrammar("\f", false));
|
|
|
|
|
expect('start = "\\n"' ).toParseAs(literalGrammar("\n", false));
|
|
|
|
|
expect('start = "\\r"' ).toParseAs(literalGrammar("\r", false));
|
|
|
|
|
expect('start = "\\t"' ).toParseAs(literalGrammar("\t", false));
|
|
|
|
|
expect('start = "\\v"' ).toParseAs(literalGrammar("\v", false));
|
|
|
|
|
expect("start = '\\''" ).toParseAs(literalGrammar("'", false));
|
|
|
|
|
expect("start = '\\\"'").toParseAs(literalGrammar("\"", false));
|
|
|
|
|
expect("start = '\\\\'").toParseAs(literalGrammar("\\", false));
|
|
|
|
|
expect("start = '\\b'" ).toParseAs(literalGrammar("\b", false));
|
|
|
|
|
expect("start = '\\f'" ).toParseAs(literalGrammar("\f", false));
|
|
|
|
|
expect("start = '\\n'" ).toParseAs(literalGrammar("\n", false));
|
|
|
|
|
expect("start = '\\r'" ).toParseAs(literalGrammar("\r", false));
|
|
|
|
|
expect("start = '\\t'" ).toParseAs(literalGrammar("\t", false));
|
|
|
|
|
expect("start = '\\v'" ).toParseAs(literalGrammar("\v", false));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical NonEscapeCharacter is "a".
|
|
|
|
|
it("parses NonEscapeCharacter", function() {
|
|
|
|
|
expect('start = "\\a"').toParseAs(literalGrammar("a", false));
|
|
|
|
|
expect("start = '\\a'").toParseAs(literalGrammar("a", false));
|
|
|
|
|
|
|
|
|
|
// The negative predicate is impossible to test with PEG.js grammar
|
|
|
|
|
// structure.
|
|
|
|
|
@ -608,66 +608,66 @@ describe("PEG.js grammar parser", function() {
|
|
|
|
|
|
|
|
|
|
// Canonical HexEscapeSequence is "xFF".
|
|
|
|
|
it("parses HexEscapeSequence", function() {
|
|
|
|
|
expect('start = "\\xFF"').toParseAs(literalGrammar("\xFF", false));
|
|
|
|
|
expect("start = '\\xFF'").toParseAs(literalGrammar("\xFF", false));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical UnicodeEscapeSequence is "uFFFF".
|
|
|
|
|
it("parses UnicodeEscapeSequence", function() {
|
|
|
|
|
expect('start = "\\uFFFF"').toParseAs(literalGrammar("\uFFFF", false));
|
|
|
|
|
expect("start = '\\uFFFF'").toParseAs(literalGrammar("\uFFFF", false));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Digit rules are not tested.
|
|
|
|
|
|
|
|
|
|
// Canonical AnyMatcher is ".".
|
|
|
|
|
it("parses AnyMatcher", function() {
|
|
|
|
|
expect('start = .').toParseAs(anyGrammar());
|
|
|
|
|
expect("start = .").toParseAs(anyGrammar());
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical CodeBlock is "{ code }".
|
|
|
|
|
it("parses CodeBlock", function() {
|
|
|
|
|
expect('start = "abcd" { code }').toParseAs(actionGrammar(" code "));
|
|
|
|
|
expect("start = 'abcd' { code }").toParseAs(actionGrammar(" code "));
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// Canonical Code is " code ".
|
|
|
|
|
it("parses Code", function() {
|
|
|
|
|
expect('start = "abcd" {a}' ).toParseAs(actionGrammar("a"));
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expect('start = "abcd" {abc}' ).toParseAs(actionGrammar("abc"));
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expect('start = "abcd" {{a}}' ).toParseAs(actionGrammar("{a}"));
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expect('start = "abcd" {{a}{b}{c}}').toParseAs(actionGrammar("{a}{b}{c}"));
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expect("start = 'abcd' {a}" ).toParseAs(actionGrammar("a"));
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expect("start = 'abcd' {abc}" ).toParseAs(actionGrammar("abc"));
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expect("start = 'abcd' {{a}}" ).toParseAs(actionGrammar("{a}"));
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expect("start = 'abcd' {{a}{b}{c}}").toParseAs(actionGrammar("{a}{b}{c}"));
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expect('start = "abcd" {{}').toFailToParse();
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expect('start = "abcd" {}}').toFailToParse();
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expect("start = 'abcd' {{}").toFailToParse();
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expect("start = 'abcd' {}}").toFailToParse();
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});
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// Unicode character category rules and token rules are not tested.
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// Canonical __ is "\n".
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it("parses __", function() {
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expect('start ="abcd"' ).toParseAs(trivialGrammar);
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expect('start = "abcd"' ).toParseAs(trivialGrammar);
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expect('start =\r\n"abcd"' ).toParseAs(trivialGrammar);
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expect('start =/* comment */"abcd"').toParseAs(trivialGrammar);
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expect('start = "abcd"' ).toParseAs(trivialGrammar);
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expect("start ='abcd'" ).toParseAs(trivialGrammar);
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expect("start = 'abcd'" ).toParseAs(trivialGrammar);
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expect("start =\r\n'abcd'" ).toParseAs(trivialGrammar);
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expect("start =/* comment */'abcd'").toParseAs(trivialGrammar);
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expect("start = 'abcd'" ).toParseAs(trivialGrammar);
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});
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// Canonical _ is " ".
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it("parses _", function() {
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expect('a = "abcd"\r\nb = "efgh"' ).toParseAs(twoRuleGrammar);
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expect('a = "abcd" \r\nb = "efgh"' ).toParseAs(twoRuleGrammar);
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expect('a = "abcd"/* comment */\r\nb = "efgh"').toParseAs(twoRuleGrammar);
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expect('a = "abcd" \r\nb = "efgh"' ).toParseAs(twoRuleGrammar);
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expect("a = 'abcd'\r\nb = 'efgh'" ).toParseAs(twoRuleGrammar);
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expect("a = 'abcd' \r\nb = 'efgh'" ).toParseAs(twoRuleGrammar);
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expect("a = 'abcd'/* comment */\r\nb = 'efgh'").toParseAs(twoRuleGrammar);
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expect("a = 'abcd' \r\nb = 'efgh'" ).toParseAs(twoRuleGrammar);
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});
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// Canonical EOS is ";".
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it("parses EOS", function() {
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expect('a = "abcd"\n;b = "efgh"' ).toParseAs(twoRuleGrammar);
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expect('a = "abcd" \r\nb = "efgh"' ).toParseAs(twoRuleGrammar);
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expect('a = "abcd" // comment\r\nb = "efgh"').toParseAs(twoRuleGrammar);
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expect('a = "abcd"\nb = "efgh"' ).toParseAs(twoRuleGrammar);
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expect("a = 'abcd'\n;b = 'efgh'" ).toParseAs(twoRuleGrammar);
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expect("a = 'abcd' \r\nb = 'efgh'" ).toParseAs(twoRuleGrammar);
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expect("a = 'abcd' // comment\r\nb = 'efgh'").toParseAs(twoRuleGrammar);
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expect("a = 'abcd'\nb = 'efgh'" ).toParseAs(twoRuleGrammar);
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});
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// Canonical EOF is the end of input.
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it("parses EOF", function() {
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expect('start = "abcd"\n').toParseAs(trivialGrammar);
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expect("start = 'abcd'\n").toParseAs(trivialGrammar);
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});
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});
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David Majda
8 years ago