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#!/usr/bin/env node

var json = '';

if (require.main === module) {

process.stdin.setEncoding('utf8');

process.stdin.on('readable', () => {

const chunk = process.stdin.read();

if (chunk !== null) {

json += chunk;

}

});

process.stdin.on('end', () => {

var obj = JSON.parse(json);

var argv = process.argv.slice(2);

extractPaths(obj, argv).forEach(function(line) {

console.log(line);

})

});

}

function extractPaths(obj, paths) {

var lines = [];

paths.forEach(function(exp) {

var objs = obj instanceof Array ? [].concat(obj) : [obj];

exp.split('.').forEach(function(name) {

for(var i = 0; i < objs.length; i++) {

var o = objs[i];

if (o instanceof Array) {

// Expand and do over

objs = objs.slice(0, i).concat(o).concat(objs.slice(i+1, objs.length));

i--;

} else {

name.split("=").forEach(function(name, index) {

if (index == 0) {

objs[i] = o = o[name];

} else if (name.charAt(0) == '^') {

if (o.indexOf(name.substr(1)) !== 0) {

objs.splice(i, 1);

i--;

}

});

}

});

lines.push(objs.join("|"));

});

return lines;

}

exports.extractPaths = extractPaths;

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