requirebin sketch

index.js

var parsimmon = require('parsimmon');

function lexeme(parser) {
  return parser.skip(parsimmon.optWhitespace);
}

var Keyword = parsimmon.alt(
  parsimmon.string('appt'),
  parsimmon.string('provider'),
  parsimmon.string('hba1c')
);

var DateString = parsimmon.regex(/\d{4}-\d{2}-\d{2}/).map(function (result) {
  return new Date(result)
});

var Float = parsimmon.seq(
  parsimmon.regex(/-?([0-9]+\.)?[0-9]+/)
).map(function (result) {
  return parseFloat(result[0], 10);
});

var Comparison = parsimmon.seqMap(
  parsimmon.regex(/<|>/),
  Float,
  
  function (operator, value) {
    return {
      operator: operator,
      value: value
    };
  }
);

var Value = parsimmon.alt(
  DateString,
  Comparison,
  parsimmon.regex(/[a-z0-9.<>]+/i)
);
    
var Separator = parsimmon.alt(
  parsimmon.regex(/\s+/),
  lexeme(parsimmon.string(',')),
  lexeme(parsimmon.eof)
);

var Pair = parsimmon.seqMap(
  Keyword.skip(lexeme(parsimmon.string(':'))),
  Value,
  Separator.times(1),

  function (keyword, value) {
    var result = {};
    
    result[keyword] = value;
    
    return result;
  }
);

var Pairs = Pair.atLeast(1);

// demo

var tests = [
  'appt:2016-10-31',
  'appt:2016-10-31',
  'appt:tomorrow',
  'appt: 2016-10-31',
  'hba1c: >5.2',
  'appt: tomorrow, provider: smagee',
  'appt: tomorrow provider: smagee',
  'appt:tomorrow provider:smagee',
  'appt tomorrow',
];

tests.forEach(function (test) {
  var result = Pairs.parse(test);
  
  document.write('<div>' + JSON.stringify(result, null, 2) + '</div>');
});

minified.js

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t(function(t,n){var a=t.charAt(n);if(n<t.length&&r(a)){return e(n+1,a)}else{return u(n,"a character matching "+r)}})};var I=r.oneOf=function(r){return F(function(t){return r.indexOf(t)>=0})};var L=r.noneOf=function(r){return F(function(t){return r.indexOf(t)<0})};var C=r.takeWhile=function(r){c(r);return t(function(t,n){var u=n;while(u<t.length&&r(t.charAt(u)))u+=1;return e(u,t.slice(n,u))})};var D=r.lazy=function(r,n){if(arguments.length<2){n=r;r=undefined}var e=t(function(r,t){e._=n()._;return e._(r,t)});if(r)e=e.desc(r);return e};var G=function(r,t){var n=r.slice(0,t).split("\n");var e=n.length;var u=n[n.length-1].length+1;return{offset:t,line:e,column:u}};var H=r.index=t(function(r,t){return e(t,G(r,t))});n.concat=n.or;n.empty=k("empty");n.of=t.of=r.of=b;n.ap=function(r){return g(this,r,function(r,t){return r(t)})};n.chain=function(r){var n=this;return t(function(t,e){var u=n._(t,e);if(!u.status)return u;var i=r(u.value);return a(i._(t,u.index),u)})};return r})},{}]},{},[]);var parsimmon=require("parsimmon");function lexeme(parser){return parser.skip(parsimmon.optWhitespace)}var Keyword=parsimmon.alt(parsimmon.string("appt"),parsimmon.string("provider"),parsimmon.string("hba1c"));var DateString=parsimmon.regex(/\d{4}-\d{2}-\d{2}/).map(function(result){return new Date(result)});var Float=parsimmon.seq(parsimmon.regex(/-?([0-9]+\.)?[0-9]+/)).map(function(result){return parseFloat(result[0],10)});var Comparison=parsimmon.seqMap(parsimmon.regex(/<|>/),Float,function(operator,value){return{operator:operator,value:value}});var Value=parsimmon.alt(DateString,Comparison,parsimmon.regex(/[a-z0-9.<>]+/i));var Separator=parsimmon.alt(parsimmon.regex(/\s+/),lexeme(parsimmon.string(",")),lexeme(parsimmon.eof));var Pair=parsimmon.seqMap(Keyword.skip(lexeme(parsimmon.string(":"))),Value,Separator.times(1),function(keyword,value){var result={};result[keyword]=value;return result});var Pairs=Pair.atLeast(1);var tests=["appt:2016-10-31","appt:2016-10-31","appt:tomorrow","appt: 2016-10-31","hba1c: >5.2","appt: tomorrow, provider: smagee","appt: tomorrow provider: smagee","appt:tomorrow provider:smagee","appt tomorrow"];tests.forEach(function(test){var result=Pairs.parse(test);document.write("<div>"+JSON.stringify(result,null,2)+"</div>")})},0);

package.json

{
  "name": "requirebin-sketch",
  "version": "1.0.0",
  "dependencies": {
    "parsimmon": "0.9.2"
  }
}

page-body.html

<!-- contents of this file will be placed inside the <body> -->

page-head.html

<!-- contents of this file will be placed inside the <head> -->

requirebin.md

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