--- /dev/null
+// info about each config option.
+
+var debug = process.env.DEBUG_NOPT || process.env.NOPT_DEBUG
+ ? function () { console.error.apply(console, arguments) }
+ : function () {}
+
+var url = require("url")
+ , path = require("path")
+ , Stream = require("stream").Stream
+ , abbrev = require("abbrev")
+
+module.exports = exports = nopt
+exports.clean = clean
+
+exports.typeDefs =
+ { String : { type: String, validate: validateString }
+ , Boolean : { type: Boolean, validate: validateBoolean }
+ , url : { type: url, validate: validateUrl }
+ , Number : { type: Number, validate: validateNumber }
+ , path : { type: path, validate: validatePath }
+ , Stream : { type: Stream, validate: validateStream }
+ , Date : { type: Date, validate: validateDate }
+ }
+
+function nopt (types, shorthands, args, slice) {
+ args = args || process.argv
+ types = types || {}
+ shorthands = shorthands || {}
+ if (typeof slice !== "number") slice = 2
+
+ debug(types, shorthands, args, slice)
+
+ args = args.slice(slice)
+ var data = {}
+ , key
+ , remain = []
+ , cooked = args
+ , original = args.slice(0)
+
+ parse(args, data, remain, types, shorthands)
+ // now data is full
+ clean(data, types, exports.typeDefs)
+ data.argv = {remain:remain,cooked:cooked,original:original}
+ Object.defineProperty(data.argv, 'toString', { value: function () {
+ return this.original.map(JSON.stringify).join(" ")
+ }, enumerable: false })
+ return data
+}
+
+function clean (data, types, typeDefs) {
+ typeDefs = typeDefs || exports.typeDefs
+ var remove = {}
+ , typeDefault = [false, true, null, String, Array]
+
+ Object.keys(data).forEach(function (k) {
+ if (k === "argv") return
+ var val = data[k]
+ , isArray = Array.isArray(val)
+ , type = types[k]
+ if (!isArray) val = [val]
+ if (!type) type = typeDefault
+ if (type === Array) type = typeDefault.concat(Array)
+ if (!Array.isArray(type)) type = [type]
+
+ debug("val=%j", val)
+ debug("types=", type)
+ val = val.map(function (val) {
+ // if it's an unknown value, then parse false/true/null/numbers/dates
+ if (typeof val === "string") {
+ debug("string %j", val)
+ val = val.trim()
+ if ((val === "null" && ~type.indexOf(null))
+ || (val === "true" &&
+ (~type.indexOf(true) || ~type.indexOf(Boolean)))
+ || (val === "false" &&
+ (~type.indexOf(false) || ~type.indexOf(Boolean)))) {
+ val = JSON.parse(val)
+ debug("jsonable %j", val)
+ } else if (~type.indexOf(Number) && !isNaN(val)) {
+ debug("convert to number", val)
+ val = +val
+ } else if (~type.indexOf(Date) && !isNaN(Date.parse(val))) {
+ debug("convert to date", val)
+ val = new Date(val)
+ }
+ }
+
+ if (!types.hasOwnProperty(k)) {
+ return val
+ }
+
+ // allow `--no-blah` to set 'blah' to null if null is allowed
+ if (val === false && ~type.indexOf(null) &&
+ !(~type.indexOf(false) || ~type.indexOf(Boolean))) {
+ val = null
+ }
+
+ var d = {}
+ d[k] = val
+ debug("prevalidated val", d, val, types[k])
+ if (!validate(d, k, val, types[k], typeDefs)) {
+ if (exports.invalidHandler) {
+ exports.invalidHandler(k, val, types[k], data)
+ } else if (exports.invalidHandler !== false) {
+ debug("invalid: "+k+"="+val, types[k])
+ }
+ return remove
+ }
+ debug("validated val", d, val, types[k])
+ return d[k]
+ }).filter(function (val) { return val !== remove })
+
+ if (!val.length) delete data[k]
+ else if (isArray) {
+ debug(isArray, data[k], val)
+ data[k] = val
+ } else data[k] = val[0]
+
+ debug("k=%s val=%j", k, val, data[k])
+ })
+}
+
+function validateString (data, k, val) {
+ data[k] = String(val)
+}
+
+function validatePath (data, k, val) {
+ if (val === true) return false
+ if (val === null) return true
+
+ val = String(val)
+ var homePattern = process.platform === 'win32' ? /^~(\/|\\)/ : /^~\//
+ if (val.match(homePattern) && process.env.HOME) {
+ val = path.resolve(process.env.HOME, val.substr(2))
+ }
+ data[k] = path.resolve(String(val))
+ return true
+}
+
+function validateNumber (data, k, val) {
+ debug("validate Number %j %j %j", k, val, isNaN(val))
+ if (isNaN(val)) return false
+ data[k] = +val
+}
+
+function validateDate (data, k, val) {
+ debug("validate Date %j %j %j", k, val, Date.parse(val))
+ var s = Date.parse(val)
+ if (isNaN(s)) return false
+ data[k] = new Date(val)
+}
+
+function validateBoolean (data, k, val) {
+ if (val instanceof Boolean) val = val.valueOf()
+ else if (typeof val === "string") {
+ if (!isNaN(val)) val = !!(+val)
+ else if (val === "null" || val === "false") val = false
+ else val = true
+ } else val = !!val
+ data[k] = val
+}
+
+function validateUrl (data, k, val) {
+ val = url.parse(String(val))
+ if (!val.host) return false
+ data[k] = val.href
+}
+
+function validateStream (data, k, val) {
+ if (!(val instanceof Stream)) return false
+ data[k] = val
+}
+
+function validate (data, k, val, type, typeDefs) {
+ // arrays are lists of types.
+ if (Array.isArray(type)) {
+ for (var i = 0, l = type.length; i < l; i ++) {
+ if (type[i] === Array) continue
+ if (validate(data, k, val, type[i], typeDefs)) return true
+ }
+ delete data[k]
+ return false
+ }
+
+ // an array of anything?
+ if (type === Array) return true
+
+ // NaN is poisonous. Means that something is not allowed.
+ if (type !== type) {
+ debug("Poison NaN", k, val, type)
+ delete data[k]
+ return false
+ }
+
+ // explicit list of values
+ if (val === type) {
+ debug("Explicitly allowed %j", val)
+ // if (isArray) (data[k] = data[k] || []).push(val)
+ // else data[k] = val
+ data[k] = val
+ return true
+ }
+
+ // now go through the list of typeDefs, validate against each one.
+ var ok = false
+ , types = Object.keys(typeDefs)
+ for (var i = 0, l = types.length; i < l; i ++) {
+ debug("test type %j %j %j", k, val, types[i])
+ var t = typeDefs[types[i]]
+ if (t &&
+ ((type && type.name && t.type && t.type.name) ? (type.name === t.type.name) : (type === t.type))) {
+ var d = {}
+ ok = false !== t.validate(d, k, val)
+ val = d[k]
+ if (ok) {
+ // if (isArray) (data[k] = data[k] || []).push(val)
+ // else data[k] = val
+ data[k] = val
+ break
+ }
+ }
+ }
+ debug("OK? %j (%j %j %j)", ok, k, val, types[i])
+
+ if (!ok) delete data[k]
+ return ok
+}
+
+function parse (args, data, remain, types, shorthands) {
+ debug("parse", args, data, remain)
+
+ var key = null
+ , abbrevs = abbrev(Object.keys(types))
+ , shortAbbr = abbrev(Object.keys(shorthands))
+
+ for (var i = 0; i < args.length; i ++) {
+ var arg = args[i]
+ debug("arg", arg)
+
+ if (arg.match(/^-{2,}$/)) {
+ // done with keys.
+ // the rest are args.
+ remain.push.apply(remain, args.slice(i + 1))
+ args[i] = "--"
+ break
+ }
+ var hadEq = false
+ if (arg.charAt(0) === "-" && arg.length > 1) {
+ if (arg.indexOf("=") !== -1) {
+ hadEq = true
+ var v = arg.split("=")
+ arg = v.shift()
+ v = v.join("=")
+ args.splice.apply(args, [i, 1].concat([arg, v]))
+ }
+
+ // see if it's a shorthand
+ // if so, splice and back up to re-parse it.
+ var shRes = resolveShort(arg, shorthands, shortAbbr, abbrevs)
+ debug("arg=%j shRes=%j", arg, shRes)
+ if (shRes) {
+ debug(arg, shRes)
+ args.splice.apply(args, [i, 1].concat(shRes))
+ if (arg !== shRes[0]) {
+ i --
+ continue
+ }
+ }
+ arg = arg.replace(/^-+/, "")
+ var no = null
+ while (arg.toLowerCase().indexOf("no-") === 0) {
+ no = !no
+ arg = arg.substr(3)
+ }
+
+ if (abbrevs[arg]) arg = abbrevs[arg]
+
+ var isArray = types[arg] === Array ||
+ Array.isArray(types[arg]) && types[arg].indexOf(Array) !== -1
+
+ // allow unknown things to be arrays if specified multiple times.
+ if (!types.hasOwnProperty(arg) && data.hasOwnProperty(arg)) {
+ if (!Array.isArray(data[arg]))
+ data[arg] = [data[arg]]
+ isArray = true
+ }
+
+ var val
+ , la = args[i + 1]
+
+ var isBool = typeof no === 'boolean' ||
+ types[arg] === Boolean ||
+ Array.isArray(types[arg]) && types[arg].indexOf(Boolean) !== -1 ||
+ (typeof types[arg] === 'undefined' && !hadEq) ||
+ (la === "false" &&
+ (types[arg] === null ||
+ Array.isArray(types[arg]) && ~types[arg].indexOf(null)))
+
+ if (isBool) {
+ // just set and move along
+ val = !no
+ // however, also support --bool true or --bool false
+ if (la === "true" || la === "false") {
+ val = JSON.parse(la)
+ la = null
+ if (no) val = !val
+ i ++
+ }
+
+ // also support "foo":[Boolean, "bar"] and "--foo bar"
+ if (Array.isArray(types[arg]) && la) {
+ if (~types[arg].indexOf(la)) {
+ // an explicit type
+ val = la
+ i ++
+ } else if ( la === "null" && ~types[arg].indexOf(null) ) {
+ // null allowed
+ val = null
+ i ++
+ } else if ( !la.match(/^-{2,}[^-]/) &&
+ !isNaN(la) &&
+ ~types[arg].indexOf(Number) ) {
+ // number
+ val = +la
+ i ++
+ } else if ( !la.match(/^-[^-]/) && ~types[arg].indexOf(String) ) {
+ // string
+ val = la
+ i ++
+ }
+ }
+
+ if (isArray) (data[arg] = data[arg] || []).push(val)
+ else data[arg] = val
+
+ continue
+ }
+
+ if (types[arg] === String && la === undefined)
+ la = ""
+
+ if (la && la.match(/^-{2,}$/)) {
+ la = undefined
+ i --
+ }
+
+ val = la === undefined ? true : la
+ if (isArray) (data[arg] = data[arg] || []).push(val)
+ else data[arg] = val
+
+ i ++
+ continue
+ }
+ remain.push(arg)
+ }
+}
+
+function resolveShort (arg, shorthands, shortAbbr, abbrevs) {
+ // handle single-char shorthands glommed together, like
+ // npm ls -glp, but only if there is one dash, and only if
+ // all of the chars are single-char shorthands, and it's
+ // not a match to some other abbrev.
+ arg = arg.replace(/^-+/, '')
+
+ // if it's an exact known option, then don't go any further
+ if (abbrevs[arg] === arg)
+ return null
+
+ // if it's an exact known shortopt, same deal
+ if (shorthands[arg]) {
+ // make it an array, if it's a list of words
+ if (shorthands[arg] && !Array.isArray(shorthands[arg]))
+ shorthands[arg] = shorthands[arg].split(/\s+/)
+
+ return shorthands[arg]
+ }
+
+ // first check to see if this arg is a set of single-char shorthands
+ var singles = shorthands.___singles
+ if (!singles) {
+ singles = Object.keys(shorthands).filter(function (s) {
+ return s.length === 1
+ }).reduce(function (l,r) {
+ l[r] = true
+ return l
+ }, {})
+ shorthands.___singles = singles
+ debug('shorthand singles', singles)
+ }
+
+ var chrs = arg.split("").filter(function (c) {
+ return singles[c]
+ })
+
+ if (chrs.join("") === arg) return chrs.map(function (c) {
+ return shorthands[c]
+ }).reduce(function (l, r) {
+ return l.concat(r)
+ }, [])
+
+
+ // if it's an arg abbrev, and not a literal shorthand, then prefer the arg
+ if (abbrevs[arg] && !shorthands[arg])
+ return null
+
+ // if it's an abbr for a shorthand, then use that
+ if (shortAbbr[arg])
+ arg = shortAbbr[arg]
+
+ // make it an array, if it's a list of words
+ if (shorthands[arg] && !Array.isArray(shorthands[arg]))
+ shorthands[arg] = shorthands[arg].split(/\s+/)
+
+ return shorthands[arg]
+}
Code Review / simantics / district.git / blobdiff