// Generated by LiveScript 1.5.0
  (function(){
    var ref$, id, find, sort, min, max, map, unlines, nameToRaw, dasherize, naturalJoin, wordwrap, getPreText, setHelpStyleDefaults, generateHelpForOption, generateHelp;
    ref$ = require('prelude-ls'), id = ref$.id, find = ref$.find, sort = ref$.sort, min = ref$.min, max = ref$.max, map = ref$.map, unlines = ref$.unlines;
    ref$ = require('./util'), nameToRaw = ref$.nameToRaw, dasherize = ref$.dasherize, naturalJoin = ref$.naturalJoin;
    wordwrap = require('wordwrap');
    getPreText = function(option, arg$, maxWidth){
      var mainName, shortNames, ref$, longNames, type, description, aliasSeparator, typeSeparator, initialIndent, names, namesString, namesStringLen, typeSeparatorString, typeSeparatorStringLen, wrap;
      mainName = option.option, shortNames = (ref$ = option.shortNames) != null
        ? ref$
        : [], longNames = (ref$ = option.longNames) != null
        ? ref$
        : [], type = option.type, description = option.description;
      aliasSeparator = arg$.aliasSeparator, typeSeparator = arg$.typeSeparator, initialIndent = arg$.initialIndent;
      if (option.negateName) {
        mainName = "no-" + mainName;
        if (longNames) {
          longNames = map(function(it){
            return "no-" + it;
          }, longNames);
        }
      }
      names = mainName.length === 1
        ? [mainName].concat(shortNames, longNames)
        : shortNames.concat([mainName], longNames);
      namesString = map(nameToRaw, names).join(aliasSeparator);
      namesStringLen = namesString.length;
      typeSeparatorString = mainName === 'NUM' ? '::' : typeSeparator;
      typeSeparatorStringLen = typeSeparatorString.length;
      if (maxWidth != null && !option.boolean && initialIndent + namesStringLen + typeSeparatorStringLen + type.length > maxWidth) {
        wrap = wordwrap(initialIndent + namesStringLen + typeSeparatorStringLen, maxWidth);
        return namesString + "" + typeSeparatorString + wrap(type).replace(/^\s+/, '');
      } else {
        return namesString + "" + (option.boolean
          ? ''
          : typeSeparatorString + "" + type);
      }
    };
    setHelpStyleDefaults = function(helpStyle){
      helpStyle.aliasSeparator == null && (helpStyle.aliasSeparator = ', ');
      helpStyle.typeSeparator == null && (helpStyle.typeSeparator = ' ');
      helpStyle.descriptionSeparator == null && (helpStyle.descriptionSeparator = '  ');
      helpStyle.initialIndent == null && (helpStyle.initialIndent = 2);
      helpStyle.secondaryIndent == null && (helpStyle.secondaryIndent = 4);
      helpStyle.maxPadFactor == null && (helpStyle.maxPadFactor = 1.5);
    };
    generateHelpForOption = function(getOption, arg$){
      var stdout, helpStyle, ref$;
      stdout = arg$.stdout, helpStyle = (ref$ = arg$.helpStyle) != null
        ? ref$
        : {};
      setHelpStyleDefaults(helpStyle);
      return function(optionName){
        var maxWidth, wrap, option, e, pre, defaultString, restPositionalString, description, fullDescription, that, preDescription, descriptionString, exampleString, examples, seperator;
        maxWidth = stdout != null && stdout.isTTY ? stdout.columns - 1 : null;
        wrap = maxWidth ? wordwrap(maxWidth) : id;
        try {
          option = getOption(dasherize(optionName));
        } catch (e$) {
          e = e$;
          return e.message;
        }
        pre = getPreText(option, helpStyle);
        defaultString = option['default'] && !option.negateName ? "
  default: " + option['default'] : '';
        restPositionalString = option.restPositional ? 'Everything after this option is considered a positional argument, even if it looks like an option.' : '';
        description = option.longDescription || option.description && sentencize(option.description);
        fullDescription = description && restPositionalString
          ? description + " " + restPositionalString
          : (that = description || restPositionalString) ? that : '';
        preDescription = 'description:';
        descriptionString = !fullDescription
          ? ''
          : maxWidth && fullDescription.length - 1 - preDescription.length > maxWidth
            ? "
  " + preDescription + "
  " + wrap(fullDescription)
            : "
  " + preDescription + " " + fullDescription;
        exampleString = (that = option.example) ? (examples = [].concat(that), examples.length > 1
          ? "
  examples:
  " + unlines(examples)
          : "
  example: " + examples[0]) : '';
        seperator = defaultString || descriptionString || exampleString ? "
  " + repeatString$('=', pre.length) : '';
        return pre + "" + seperator + defaultString + descriptionString + exampleString;
      };
    };
    generateHelp = function(arg$){
      var options, prepend, append, helpStyle, ref$, stdout, aliasSeparator, typeSeparator, descriptionSeparator, maxPadFactor, initialIndent, secondaryIndent;
      options = arg$.options, prepend = arg$.prepend, append = arg$.append, helpStyle = (ref$ = arg$.helpStyle) != null
        ? ref$
        : {}, stdout = arg$.stdout;
      setHelpStyleDefaults(helpStyle);
      aliasSeparator = helpStyle.aliasSeparator, typeSeparator = helpStyle.typeSeparator, descriptionSeparator = helpStyle.descriptionSeparator, maxPadFactor = helpStyle.maxPadFactor, initialIndent = helpStyle.initialIndent, secondaryIndent = helpStyle.secondaryIndent;
      return function(arg$){
        var ref$, showHidden, interpolate, maxWidth, output, out, data, optionCount, totalPreLen, preLens, i$, len$, item, that, pre, descParts, desc, preLen, sortedPreLens, maxPreLen, preLenMean, x, padAmount, descSepLen, fullWrapCount, partialWrapCount, descLen, totalLen, initialSpace, wrapAllFull, i, wrap;
        ref$ = arg$ != null
          ? arg$
          : {}, showHidden = ref$.showHidden, interpolate = ref$.interpolate;
        maxWidth = stdout != null && stdout.isTTY ? stdout.columns - 1 : null;
        output = [];
        out = function(it){
          return output.push(it != null ? it : '');
        };
        if (prepend) {
          out(interpolate ? interp(prepend, interpolate) : prepend);
          out();
        }
        data = [];
        optionCount = 0;
        totalPreLen = 0;
        preLens = [];
        for (i$ = 0, len$ = (ref$ = options).length; i$ < len$; ++i$) {
          item = ref$[i$];
          if (showHidden || !item.hidden) {
            if (that = item.heading) {
              data.push({
                type: 'heading',
                value: that
              });
            } else {
              pre = getPreText(item, helpStyle, maxWidth);
              descParts = [];
              if ((that = item.description) != null) {
                descParts.push(that);
              }
              if (that = item['enum']) {
                descParts.push("either: " + naturalJoin(that));
              }
              if (item['default'] && !item.negateName) {
                descParts.push("default: " + item['default']);
              }
              desc = descParts.join(' - ');
              data.push({
                type: 'option',
                pre: pre,
                desc: desc,
                descLen: desc.length
              });
              preLen = pre.length;
              optionCount++;
              totalPreLen += preLen;
              preLens.push(preLen);
            }
          }
        }
        sortedPreLens = sort(preLens);
        maxPreLen = sortedPreLens[sortedPreLens.length - 1];
        preLenMean = initialIndent + totalPreLen / optionCount;
        x = optionCount > 2 ? min(preLenMean * maxPadFactor, maxPreLen) : maxPreLen;
        for (i$ = sortedPreLens.length - 1; i$ >= 0; --i$) {
          preLen = sortedPreLens[i$];
          if (preLen <= x) {
            padAmount = preLen;
            break;
          }
        }
        descSepLen = descriptionSeparator.length;
        if (maxWidth != null) {
          fullWrapCount = 0;
          partialWrapCount = 0;
          for (i$ = 0, len$ = data.length; i$ < len$; ++i$) {
            item = data[i$];
            if (item.type === 'option') {
              pre = item.pre, desc = item.desc, descLen = item.descLen;
              if (descLen === 0) {
                item.wrap = 'none';
              } else {
                preLen = max(padAmount, pre.length) + initialIndent + descSepLen;
                totalLen = preLen + descLen;
                if (totalLen > maxWidth) {
                  if (descLen / 2.5 > maxWidth - preLen) {
                    fullWrapCount++;
                    item.wrap = 'full';
                  } else {
                    partialWrapCount++;
                    item.wrap = 'partial';
                  }
                } else {
                  item.wrap = 'none';
                }
              }
            }
          }
        }
        initialSpace = repeatString$(' ', initialIndent);
        wrapAllFull = optionCount > 1 && fullWrapCount + partialWrapCount * 0.5 > optionCount * 0.5;
        for (i$ = 0, len$ = data.length; i$ < len$; ++i$) {
          i = i$;
          item = data[i$];
          if (item.type === 'heading') {
            if (i !== 0) {
              out();
            }
            out(item.value + ":");
          } else {
            pre = item.pre, desc = item.desc, descLen = item.descLen, wrap = item.wrap;
            if (maxWidth != null) {
              if (wrapAllFull || wrap === 'full') {
                wrap = wordwrap(initialIndent + secondaryIndent, maxWidth);
                out(initialSpace + "" + pre + "
  " + wrap(desc));
                continue;
              } else if (wrap === 'partial') {
                wrap = wordwrap(initialIndent + descSepLen + max(padAmount, pre.length), maxWidth);
                out(initialSpace + "" + pad(pre, padAmount) + descriptionSeparator + wrap(desc).replace(/^\s+/, ''));
                continue;
              }
            }
            if (descLen === 0) {
              out(initialSpace + "" + pre);
            } else {
              out(initialSpace + "" + pad(pre, padAmount) + descriptionSeparator + desc);
            }
          }
        }
        if (append) {
          out();
          out(interpolate ? interp(append, interpolate) : append);
        }
        return unlines(output);
      };
    };
    function pad(str, num){
      var len, padAmount;
      len = str.length;
      padAmount = num - len;
      return str + "" + repeatString$(' ', padAmount > 0 ? padAmount : 0);
    }
    function sentencize(str){
      var first, rest, period;
      first = str.charAt(0).toUpperCase();
      rest = str.slice(1);
      period = /[\.!\?]$/.test(str) ? '' : '.';
      return first + "" + rest + period;
    }
    function interp(string, object){
      return string.replace(/{{([a-zA-Z$_][a-zA-Z$_0-9]*)}}/g, function(arg$, key){
        var ref$;
        return (ref$ = object[key]) != null
          ? ref$
          : "{{" + key + "}}";
      });
    }
    module.exports = {
      generateHelp: generateHelp,
      generateHelpForOption: generateHelpForOption
    };
    function repeatString$(str, n){
      for (var r = ''; n > 0; (n >>= 1) && (str += str)) if (n & 1) r += str;
      return r;
    }
  }).call(this);