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