// Generated by LiveScript 1.6.0
|
(function(){
|
var ref$, id, find, sort, min, max, map, unlines, nameToRaw, dasherize, naturalJoin, wordWrap, wordwrap, getPreText, setHelpStyleDefaults, generateHelpForOption, generateHelp;
|
ref$ = 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$.naturalJoin;
|
wordWrap = require('word-wrap');
|
wordwrap = function(a, b){
|
var ref$, indent, width;
|
ref$ = b === undefined
|
? ['', a - 1]
|
: [repeatString$(' ', a), b - a - 1], indent = ref$[0], width = ref$[1];
|
return function(text){
|
return wordWrap(text, {
|
indent: indent,
|
width: width,
|
trim: true
|
});
|
};
|
};
|
getPreText = function(option, arg$, 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 ? "\ndefault: " + 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
|
? "\n" + preDescription + "\n" + wrap(fullDescription)
|
: "\n" + preDescription + " " + fullDescription;
|
exampleString = (that = option.example) ? (examples = [].concat(that), examples.length > 1
|
? "\nexamples:\n" + unlines(examples)
|
: "\nexample: " + examples[0]) : '';
|
seperator = defaultString || descriptionString || exampleString ? "\n" + 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 + "\n" + 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);
|
