Tool to test if a grammar with a sample input file is ambiguous

[kach]

Tool to test if a grammar with a sample input file is ambiguous

[bojidar-bg]

@bobbybee That's (somewhat) simple to make with a node.js script...
E.g. (All of it untested, should work though)

var nearley=require("nearley");
var child_process = require("child_process");
var fs = require("fs");
child_process.spawnSync("nearleyc",["grammer.ne","-o","tmp_grammer.js"]);

var grammer = require("tmp_grammer.js");
var parser = new nearley.Parser(grammar.ParserRules, grammar.ParserStart);
var results = parser.feed(fs.readFileSync("test.txt", "utf8"));

if(result.length == 1) {
  process.kill(0);
} else {
  process.kill(1);
}

[kach]

Issue seems dead; also trivial to implement yourself.