TamperMonkey script that lets open my browser console and generate concordances from my MiniMongo collection over a regex

mini_concordancer.js

// ==UserScript==
// @name         Bindi Assistant
// @namespace    lgessler
// @version      0.1
// @description  Offer convenience functions
// @author       Luke Gessler
// @match        https://chrome.google.com/webstore/detail/tampermonkey/dhdgffkkebhmkfjojejmpbldmpobfkfo/related?hl=en
// @grant        unsafeWindow
// ==/UserScript==
/* jshint -W097 */
'use strict';

unsafeWindow.on = true;

// Your code here...

unsafeWindow.grep = function(pat) { 
  var docs = Forms.find({phonetic: new RegExp(pat, "g")}).fetch(); 
  _.pluck(docs, 'phonetic').forEach(function(form) {
    console.log(form);
  }); 
}

/*
var combining = [
    ' ̥',
    ' ̃',
    ' ̞',
    '̘',
    '̃'
]
*/

var combining = [
    '\u031E', // shift down
    '\u0318', // shift left
    '\u0303', // nasalized
    '\u0325' // devoiced
];    

unsafeWindow.pgrep = function(pat) { 
  var regex = new RegExp(pat, "g");
  var occ;
  var results = [];
  var maxInd = 0;
  var docs = Forms.find({phonetic: regex}).fetch(); 
  _.pluck(docs, 'phonetic').forEach(function(form) {
    while((occ = regex.exec(form)) != null) {
      if (maxInd < occ.index) maxInd = occ.index;
      results.push(occ);
    }
  }); 
  //just do this so we get consistent results
  maxInd = 20;
    
  console.log(" ".repeat(maxInd) + "v");
  results.forEach(function(occ) {
    var padding = (" ".repeat(maxInd-occ.index));
    // account for combining characters
    var beforeMatch = occ.input.substring(0, occ.index);
    combining.forEach(function(c) {
      padding += " ".repeat((beforeMatch.match(new RegExp(c, "g"))||[]).length);
    });
    console.log(padding + occ.input);

    //console.log(padding + occ.input.substring(0, occ.index) + " " + occ.input.substring(occ.index, occ.index+1) + " " + occ.input.substring(occ.index+1));
  });
  console.log(" ".repeat(maxInd) + "^");
}