joepie91
/
pegjs
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Label specs: Improve structure and descriptions

Browse Source
redux
David Majda 9 years ago
parent 8487c9a0ff
commit 6f2c75f7d8
1 changed files with 262 additions and 250 deletions
Show Stats Download Patch File Download Diff File

512
spec/behavior/generated-parser-behavior.spec.js
Unescape Escape View File

@ -436,112 +436,116 @@ describe("generated parser behavior", function() {
});
describe("label variables", function() {
it("can access label variables from preceding labeled elements in a sequence", function() {
var parser = PEG.buildParser(
'start = a:"a" b:"b" c:"c" &{ return a === "a" && b === "b" && c === "c"; }',
options
);
describe("in a containing sequence", function() {
it("can access variables defined by preceding labeled elements", function() {
var parser = PEG.buildParser(
'start = a:"a" b:"b" c:"c" &{ return a === "a" && b === "b" && c === "c"; }',
options
);
expect(parser).toParse("abc");
expect(parser).toParse("abc");
});
});
it("can access label variables from preceding labeled elements in an outside sequence (group)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" &{ return a === "a"; })',
options
);
describe("in an outside sequence", function() {
it("can access variables defined by preceding labeled elements (group)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" &{ return a === "a"; })',
options
);
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (optional)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" &{ return a === "a"; })?',
options
);
it("can access variables defined by preceding labeled elements (optional)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" &{ return a === "a"; })?',
options
);
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (zero or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" &{ return a === "a"; })*',
options
);
it("can access variables defined by preceding labeled elements (zero or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" &{ return a === "a"; })*',
options
);
expect(parser).toParse("ab", ["a", [["b", undefined]]]);
});
expect(parser).toParse("ab", ["a", [["b", undefined]]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (one or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" &{ return a === "a"; })+',
options
);
it("can access variables defined by preceding labeled elements (one or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" &{ return a === "a"; })+',
options
);
expect(parser).toParse("ab", ["a", [["b", undefined]]]);
});
expect(parser).toParse("ab", ["a", [["b", undefined]]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (text)", function() {
var parser = PEG.buildParser(
'start = a:"a" $("b" &{ return a === "a"; })',
options
);
it("can access variables defined by preceding labeled elements (text)", function() {
var parser = PEG.buildParser(
'start = a:"a" $("b" &{ return a === "a"; })',
options
);
expect(parser).toParse("ab", ["a", "b"]);
});
expect(parser).toParse("ab", ["a", "b"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (positive simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" &("b" &{ return a === "a"; }) "b"',
options
);
it("can access variables defined by preceding labeled elements (positive simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" &("b" &{ return a === "a"; }) "b"',
options
);
expect(parser).toParse("ab", ["a", undefined, "b"]);
});
expect(parser).toParse("ab", ["a", undefined, "b"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (negative simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" !("b" &{ return a === "a"; }) "c"',
options
);
it("can access variables defined by preceding labeled elements (negative simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" !("b" &{ return a === "a"; }) "c"',
options
);
expect(parser).toParse("ac", ["a", undefined, "c"]);
});
expect(parser).toParse("ac", ["a", undefined, "c"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (label)", function() {
var parser = PEG.buildParser(
'start = a:"a" b:("b" &{ return a === "a"; })',
options
);
it("can access variables defined by preceding labeled elements (label)", function() {
var parser = PEG.buildParser(
'start = a:"a" b:("b" &{ return a === "a"; })',
options
);
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (sequence)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" ("c" &{ return a === "a"; }) "d")',
options
);
it("can access variables defined by preceding labeled elements (sequence)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" ("c" &{ return a === "a"; }) "d")',
options
);
expect(parser).toParse("abcd", ["a", ["b", ["c", undefined], "d"]]);
});
expect(parser).toParse("abcd", ["a", ["b", ["c", undefined], "d"]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (action)", function() {
var parser = PEG.buildParser(
'start = a:"a" (b:("b" &{ return a === "a"; }) { return b; })',
options
);
it("can access variables defined by preceding labeled elements (action)", function() {
var parser = PEG.buildParser(
'start = a:"a" (b:("b" &{ return a === "a"; }) { return b; })',
options
);
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (choice)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" / "c" &{ return a === "a"; } / "d")',
options
);
it("can access variables defined by preceding labeled elements (choice)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" / "c" &{ return a === "a"; } / "d")',
options
);
expect(parser).toParse("ac", ["a", ["c", undefined]]);
expect(parser).toParse("ac", ["a", ["c", undefined]]);
});
});
});
@ -645,112 +649,116 @@ describe("generated parser behavior", function() {
});
describe("label variables", function() {
it("can access label variables from preceding labeled elements in a sequence", function() {
var parser = PEG.buildParser(
'start = a:"a" b:"b" c:"c" !{ return a !== "a" || b !== "b" || c !== "c"; }',
options
);
describe("in a containing sequence", function() {
it("can access variables defined by preceding labeled elements", function() {
var parser = PEG.buildParser(
'start = a:"a" b:"b" c:"c" !{ return a !== "a" || b !== "b" || c !== "c"; }',
options
);
expect(parser).toParse("abc");
expect(parser).toParse("abc");
});
});
it("can access label variables from preceding labeled elements in an outside sequence (group)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" !{ return a !== "a"; })',
options
);
describe("in an outside sequence", function() {
it("can access variables defined by preceding labeled elements (group)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" !{ return a !== "a"; })',
options
);
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (optional)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" !{ return a !== "a"; })?',
options
);
it("can access variables defined by preceding labeled elements (optional)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" !{ return a !== "a"; })?',
options
);
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (zero or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" !{ return a !== "a"; })*',
options
);
it("can access variables defined by preceding labeled elements (zero or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" !{ return a !== "a"; })*',
options
);
expect(parser).toParse("ab", ["a", [["b", undefined]]]);
});
expect(parser).toParse("ab", ["a", [["b", undefined]]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (one or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" !{ return a !== "a"; })+',
options
);
it("can access variables defined by preceding labeled elements (one or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" !{ return a !== "a"; })+',
options
);
expect(parser).toParse("ab", ["a", [["b", undefined]]]);
});
expect(parser).toParse("ab", ["a", [["b", undefined]]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (text)", function() {
var parser = PEG.buildParser(
'start = a:"a" $("b" !{ return a !== "a"; })',
options
);
it("can access variables defined by preceding labeled elements (text)", function() {
var parser = PEG.buildParser(
'start = a:"a" $("b" !{ return a !== "a"; })',
options
);
expect(parser).toParse("ab", ["a", "b"]);
});
expect(parser).toParse("ab", ["a", "b"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (positive simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" &("b" !{ return a !== "a"; }) "b"',
options
);
it("can access variables defined by preceding labeled elements (positive simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" &("b" !{ return a !== "a"; }) "b"',
options
);
expect(parser).toParse("ab", ["a", undefined, "b"]);
});
expect(parser).toParse("ab", ["a", undefined, "b"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (negative simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" !("b" !{ return a !== "a"; }) "c"',
options
);
it("can access variables defined by preceding labeled elements (negative simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" !("b" !{ return a !== "a"; }) "c"',
options
);
expect(parser).toParse("ac", ["a", undefined, "c"]);
});
expect(parser).toParse("ac", ["a", undefined, "c"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (label)", function() {
var parser = PEG.buildParser(
'start = a:"a" b:("b" !{ return a !== "a"; })',
options
);
it("can access variables defined by preceding labeled elements (label)", function() {
var parser = PEG.buildParser(
'start = a:"a" b:("b" !{ return a !== "a"; })',
options
);
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (sequence)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" ("c" !{ return a !== "a"; }) "d")',
options
);
it("can access variables defined by preceding labeled elements (sequence)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" ("c" !{ return a !== "a"; }) "d")',
options
);
expect(parser).toParse("abcd", ["a", ["b", ["c", undefined], "d"]]);
});
expect(parser).toParse("abcd", ["a", ["b", ["c", undefined], "d"]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (action)", function() {
var parser = PEG.buildParser(
'start = a:"a" (b:("b" !{ return a !== "a"; }) { return b; })',
options
);
it("can access variables defined by preceding labeled elements (action)", function() {
var parser = PEG.buildParser(
'start = a:"a" (b:("b" !{ return a !== "a"; }) { return b; })',
options
);
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
expect(parser).toParse("ab", ["a", ["b", undefined]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (choice)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" / "c" !{ return a !== "a"; } / "d")',
options
);
it("can access variables defined by preceding labeled elements (choice)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" / "c" !{ return a !== "a"; } / "d")',
options
);
expect(parser).toParse("ac", ["a", ["c", undefined]]);
expect(parser).toParse("ac", ["a", ["c", undefined]]);
});
});
});
@ -1044,118 +1052,122 @@ describe("generated parser behavior", function() {
});
describe("label variables", function() {
it("can access label variables from a labeled expression", function() {
var parser = PEG.buildParser('start = a:"a" { return a; }', options);
describe("in the expression", function() {
it("can access label variables defined by a labeled expression", function() {
var parser = PEG.buildParser('start = a:"a" { return a; }', options);
expect(parser).toParse("a", "a");
});
expect(parser).toParse("a", "a");
});
it("can access label variables from a sequence with labeled elements", function() {
var parser = PEG.buildParser(
'start = a:"a" b:"b" c:"c" { return [a, b, c]; }',
options
);
it("can access label variables defined by labeled sequence elements", function() {
var parser = PEG.buildParser(
'start = a:"a" b:"b" c:"c" { return [a, b, c]; }',
options
);
expect(parser).toParse("abc", ["a", "b", "c"]);
expect(parser).toParse("abc", ["a", "b", "c"]);
});
});
it("can access label variables from preceding labeled elements in an outside sequence (group)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" { return a; })',
options
);
describe("in an outside sequence", function() {
it("can access variables defined by preceding labeled elements (group)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" { return a; })',
options
);
expect(parser).toParse("ab", ["a", "a"]);
});
expect(parser).toParse("ab", ["a", "a"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (optional)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" { return a; })?',
options
);
it("can access variables defined by preceding labeled elements (optional)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" { return a; })?',
options
);
expect(parser).toParse("ab", ["a", "a"]);
});
expect(parser).toParse("ab", ["a", "a"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (zero or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" { return a; })*',
options
);
it("can access variables defined by preceding labeled elements (zero or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" { return a; })*',
options
);
expect(parser).toParse("ab", ["a", ["a"]]);
});
expect(parser).toParse("ab", ["a", ["a"]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (one or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" { return a; })+',
options
);
it("can access variables defined by preceding labeled elements (one or more)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" { return a; })+',
options
);
expect(parser).toParse("ab", ["a", ["a"]]);
});
expect(parser).toParse("ab", ["a", ["a"]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (text)", function() {
var parser = PEG.buildParser(
'start = a:"a" $("b" { return a; })',
options
);
it("can access variables defined by preceding labeled elements (text)", function() {
var parser = PEG.buildParser(
'start = a:"a" $("b" { return a; })',
options
);
expect(parser).toParse("ab", ["a", "b"]);
});
expect(parser).toParse("ab", ["a", "b"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (positive simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" &("b" { return a; }) "b"',
options
);
it("can access variables defined by preceding labeled elements (positive simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" &("b" { return a; }) "b"',
options
);
expect(parser).toParse("ab", ["a", undefined, "b"]);
});
expect(parser).toParse("ab", ["a", undefined, "b"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (negative simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" !("b" { return a; }) "c"',
options
);
it("can access variables defined by preceding labeled elements (negative simple predicate)", function() {
var parser = PEG.buildParser(
'start = a:"a" !("b" { return a; }) "c"',
options
);
expect(parser).toParse("ac", ["a", undefined, "c"]);
});
expect(parser).toParse("ac", ["a", undefined, "c"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (label)", function() {
var parser = PEG.buildParser(
'start = a:"a" b:("b" { return a; })',
options
);
it("can access variables defined by preceding labeled elements (label)", function() {
var parser = PEG.buildParser(
'start = a:"a" b:("b" { return a; })',
options
);
expect(parser).toParse("ab", ["a", "a"]);
});
expect(parser).toParse("ab", ["a", "a"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (sequence)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" ("c" { return a; }) "d")',
options
);
it("can access variables defined by preceding labeled elements (sequence)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" ("c" { return a; }) "d")',
options
);
expect(parser).toParse("abcd", ["a", ["b", "a", "d"]]);
});
expect(parser).toParse("abcd", ["a", ["b", "a", "d"]]);
});
it("can access label variables from preceding labeled elements in an outside sequence (action)", function() {
var parser = PEG.buildParser(
'start = a:"a" (b:("b" { return a; }) { return b; })',
options
);
it("can access variables defined by preceding labeled elements (action)", function() {
var parser = PEG.buildParser(
'start = a:"a" (b:("b" { return a; }) { return b; })',
options
);
expect(parser).toParse("ab", ["a", "a"]);
});
expect(parser).toParse("ab", ["a", "a"]);
});
it("can access label variables from preceding labeled elements in an outside sequence (choice)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" / "c" { return a; } / "d")',
options
);
it("can access variables defined by preceding labeled elements (choice)", function() {
var parser = PEG.buildParser(
'start = a:"a" ("b" / "c" { return a; } / "d")',
options
);
expect(parser).toParse("ac", ["a", "a"]);
expect(parser).toParse("ac", ["a", "a"]);
});
});
});

Write Preview
Loading…
Cancel
Save