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parambulator.js
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parambulator.js
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/* Copyright (c) 2012-2015 Richard Rodger, MIT License */
/* jshint node:true, asi:true, eqnull:true */
(function() {
"use strict";
var root = this
var previous_parambulator = root.parambulator
var has_require = typeof require !== 'undefined'
var _ = root._
var gex = root.gex
var jsonic = root.jsonic
if( typeof _ === 'undefined' ) {
if( has_require ) {
_ = require('lodash')
}
// assume in web context, so still underscore, not lodash
else throw new Error('parambulator requires underscore, see http://underscorejs.org');
}
if( typeof gex === 'undefined' ) {
if( has_require ) {
gex = require('gex')
}
else throw new Error('parambulator requires gex, see http://github.com/rjrodger/gex');
}
if( typeof jsonic === 'undefined' ) {
if( has_require ) {
jsonic = require('jsonic')
}
else throw new Error('parambulator requires jsonic, see http://github.com/rjrodger/jsonic');
}
var arrayify = function(){ return Array.prototype.slice.call(arguments[0],arguments[1]) }
var quantrule = function( pass, rulename ) {
rulename = rulename || 'quantrule'
return function(ctxt,cb) {
ctxt.prop = null
var pn = ctxt.util.proplist(ctxt)
var found = 0
_.each(pn, function(p){
found += ctxt.point[p]?1:0
})
if( !pass(found) ) {
ctxt.value = ''+pn
return ctxt.util.fail(ctxt,cb)
}
else return cb();
}
}
var lenrule = function( pass ) {
return function(ctxt,cb) {
var len = ctxt.rule.spec
var value = ctxt.point
if( !_.isUndefined(value) ) {
var valuelen = _.isObject(value) ? Object.keys(value).length : value.length
if ( !_.isUndefined( valuelen ) ){
if ( !pass( valuelen, len ) ) {
return ctxt.util.fail(ctxt,cb)
}
}
}
return cb()
}
};
var childrule = function( pass, noneok, rulename ) {
rulename = rulename || 'childrule'
return function(ctxt,cb) {
var pn = ctxt.util.proplist(ctxt)
for( var i = 0; i < pn.length; i++ ) {
var p = pn[i]
ctxt.prop = p
var v = ctxt.point[p]
if( !pass(ctxt,p,v) ) {
ctxt.value = v
return ctxt.util.fail(ctxt,cb)
}
}
if( 0 === pn.length ) {
if( !noneok() ) {
// TODO needs a separate msg code
ctxt.prop = JSON.stringify(ctxt.rule.spec,killcircles())
return ctxt.util.fail(ctxt,cb)
}
}
cb();
}
}
function proplist(ctxt) {
var pn = ctxt.rule.spec
// TODO: handle comma separated strings
// https://github.com/rjrodger/parambulator/issues/19
if( !_.isArray(pn) ) {
pn = [''+pn]
}
var all = []
_.each(pn, function(n){
if( n.match( /[*?]/ ) ) {
all = all.concat( _.keys(gex(n).on(ctxt.point)) )
}
else all.push(n);
})
return all
}
function truefn(){return true}
function falsefn(){return false}
function noval(v){return _.isUndefined(v)||_.isNull(v)}
var valrule = function( pass ) {
return function(ctxt,cb) {
var v = ctxt.point
var p = ctxt.rule.spec
if( !_.isUndefined(v) ) {
if( !pass(v, p) ) {
return ctxt.util.fail(ctxt,cb)
}
}
return cb();
}
}
var rulemap = {
atmostone$: quantrule( function(f){return f<=1}, 'atmostone$'),
exactlyone$: quantrule( function(f){return 1==f}, 'exactlyone$'),
atleastone$: quantrule( function(f){return 1<=f}, 'atleastone$'),
required$: childrule( function(ctxt,p,v){return !_.isUndefined(v)}, falsefn, 'required$' ),
notempty$: childrule(
function(ctxt,p,v){
return !_.isUndefined(v) && !_.isNull(v) && '' !== v
},
truefn,
'notempty$'
),
string$: childrule( function(ctxt,p,v){return noval(v) || _.isString(v)}, truefn, 'string$' ),
integer$: childrule( function(ctxt,p,v){return noval(v) || _.isNumber(v) && v===(v|0)}, truefn, 'integer$' ),
number$: childrule( function(ctxt,p,v){return noval(v) || _.isNumber(v)}, truefn, 'number$' ),
boolean$: childrule( function(ctxt,p,v){return noval(v) || _.isBoolean(v)}, truefn, 'boolean$' ),
date$: childrule( function(ctxt,p,v){return noval(v) || _.isDate(v)}, truefn, 'date$' ),
array$: childrule( function(ctxt,p,v){return noval(v) || _.isArray(v)}, truefn, 'array$' ),
object$: childrule( function(ctxt,p,v){return noval(v) || _.isObject(v) && !_.isArray(v)}, truefn, 'object$' ),
function$: childrule( function(ctxt,p,v){return noval(v) || _.isFunction(v)}, truefn, 'function$' ),
lt$: valrule( function(p,v){return p < v} ),
lte$: valrule( function(p,v){return p <= v} ),
gt$: valrule( function(p,v){return p > v} ),
gte$: valrule( function(p,v){return p >= v} ),
min$: valrule( function(p,v){return p >= v}),
max$: valrule( function(p,v){return p <= v}),
uniq$: function(ctxt,cb){
var value = ctxt.point
var o = {}
for( var i=0; i<value.length;i++ ) {
if(_.has(o, value[i])){
return ctxt.util.fail(ctxt,cb)
} else {
o[value[i]]= 1
}
}
return cb()
},
only$: function(ctxt,cb) {
var pn = ctxt.util.proplist(ctxt)
for( var p in ctxt.point ) {
if( !(_.includes||_.contains)(pn,p) ) {
ctxt.prop = p
return ctxt.util.fail(ctxt,cb)
}
}
return cb();
},
wild$: function(ctxt,cb) {
var value = ctxt.point
if( !_.isUndefined(value) ) {
if( !gex(ctxt.rule.spec).on(value) ) {
return ctxt.util.fail(ctxt,cb)
}
}
return cb();
},
eq$: function(ctxt,cb) {
var value = ctxt.point
if( !_.isUndefined(value) ) {
if( ctxt.rule.spec !== value ) {
return ctxt.util.fail(ctxt,cb)
}
}
return cb();
},
minlen$: lenrule( function(valuelen, conditionlen){return valuelen >= conditionlen} ),
maxlen$: lenrule( function(valuelen, conditionlen){return valuelen <= conditionlen} ),
re$: function(ctxt,cb) {
var value = ctxt.point
if( !_.isUndefined(value) ) {
value = ''+value
var redef = ctxt.rule.spec
var reopt = void(0)
var m = /^\/(.*)\/(\w*)$/.exec(ctxt.rule.spec)
if( m ) {
redef = m[1]
reopt = m[2]
}
var re = new RegExp(redef,reopt)
if( !re.exec(value) ) {
return ctxt.util.fail(ctxt,cb)
}
}
return cb();
},
type$: function(ctxt,cb) {
var pn = ctxt.util.proplist(ctxt)
var checkmap = {
string:_.isString,
number:_.isNumber,
integer:function(v){return _.isNumber(v) && v===(v|0)},
boolean:_.isBoolean,
date:_.isDate,
array:_.isArray,
object:function(v){return _.isObject(v) && !_.isArray(v) && !_.isDate(v)},
'function':function(v){return _.isFunction(v)}
}
var found = 0;
_.each(pn, function(p){
var check = checkmap[p.toLowerCase()]
if( check ) {
found += check(ctxt.point)
}
})
if( !found ) {
return ctxt.util.fail(ctxt,cb)
}
return cb();
},
format$: function(ctxt,cb) {
var pn = ctxt.util.proplist(ctxt)
var checkmap = {
datetime: function checkFormatRegex(v) { return /\d{4}-(0[1-9]|1[1-2])-([0-2]\d|3[0-1])T([0-1]\d|2[0-4]):[0-5]\d:[0-5]\dZ/.test(v) },
date: function checkFormatRegex(v) { return /\d{4}-[0-1][0-2]-[0-2]\d/.test(v) },
time: function checkFormatRegex(v) { return /([0-1]\d|2[0-4]):[0-5]\d:[0-5]\dZ/.test(v) },
utcmillisec: _.isNumber,
re: _.isRegExp
}
var found = 0;
_.each(pn, function(p){
var check = checkmap[p.toLowerCase()]
if( check ) {
found += check(ctxt.point)
}
})
if( !found ) {
return ctxt.util.fail(ctxt,cb)
}
return cb();
},
default$: function(ctxt,cb) {
return cb();
},
enum$: function(ctxt,cb) {
var value = ctxt.point
var okvals = ctxt.rule.spec
var avalue = []
if ( _.isArray(value) ) {
avalue = value
}
else {
avalue[0] = value
}
var iserror = 0
if( avalue ) {
_.each(avalue, function(p){
iserror += (-1 == okvals.indexOf(p) )
})
}
if ( iserror ){
return ctxt.util.fail(ctxt,cb)
}
return cb();
},
// internal rules
iterate$: function(ctxt,cb) {
var pn = [ctxt.rule.spec.prop]
if( _.isObject(ctxt.point) ) {
if( _.isArray(ctxt.point) ) {
pn = gex( ctxt.rule.spec.prop ).on( _.range(ctxt.point.length))
}
else {
pn = _.keys(gex( ctxt.rule.spec.prop ).on(ctxt.point))
}
}
var subctxt = ctxt.util.clone(ctxt)
subctxt.rules = ctxt.rule.spec.rules
function eachprop(propI) {
if( propI < pn.length ) {
var p = pn[propI]
var psubctxt = ctxt.util.clone(subctxt)
psubctxt.parents = subctxt.parents.concat({prop:p,point:subctxt.point})
psubctxt.prop = p
psubctxt.point = subctxt.point ? subctxt.point[p] : null
psubctxt.util.execrules(psubctxt,function(err){
if( err ) return cb(err);
eachprop(propI+1)
})
}
else cb()
}
eachprop(0)
},
recurse$: function(ctxt,cb) {
var recurctxt = ctxt.util.clone(ctxt)
recurctxt.point = {$:ctxt.point}
recurse('$',recurctxt.point,cb)
function recurse(prop,point,cb) {
if( !_.isObject(point) ) {
return cb(null)
}
var pn = _.keys( point )
var subctxt = ctxt.util.clone(ctxt)
subctxt.rules = ctxt.rule.spec.rules
subctxt.parents = '$'!=prop?subctxt.parents.concat({prop:subctxt.prop,point:subctxt.point}):subctxt.parents
function eachprop(propI,cb) {
if( propI < pn.length ) {
var p = pn[propI]
var eachpropctxt = subctxt.util.clone(subctxt)
eachpropctxt.prop = p
eachpropctxt.point = point[p]
eachpropctxt.parents = '$'!=p?eachpropctxt.parents.concat({prop:subctxt.prop,point:subctxt.point}):eachpropctxt.parents
eachpropctxt.util.execrules(eachpropctxt,function(err){
if( err ) return cb(err);
recurse(p,eachpropctxt.point,function(err){
if( err ) return cb(err);
eachprop(propI+1,cb)
})
})
}
else {
return cb(null)
}
}
eachprop(0,cb)
}
},
descend$: function(ctxt,cb) {
var subctxt = ctxt.util.clone(ctxt)
var prop = ctxt.rule.spec.prop
subctxt.rules = ctxt.rule.spec.rules
subctxt.prop = prop
subctxt.point = ctxt.point[prop]
subctxt.parents = subctxt.parents.concat({prop:prop,point:ctxt.point})
subctxt.util.execrules(subctxt,function(err){
if( err ) return cb(err);
cb(null)
})
}
}
var msgsmap = {
no_input$: "There is no input parameter",
atmostone$: "At most one of these properties can be used at a time: '<%=value%>' (parent: <%=parentpath%>).",
exactlyone$: "Exactly one of these properties must be used: '<%=value%>' (parent: <%=parentpath%>).",
atleastone$: "At least one of these properties is required: '<%=value%>' (parent: <%=parentpath%>).",
required$: "The property '<%=property%>' is missing and is always required (parent: <%=parentpath%>).",
notempty$: "The property '<%=property%>' requires a value (parent: <%=parentpath%>).",
string$: "The property '<%=property%>', with current value: '<%=value%>', must be a string (parent: <%=parentpath%>).",
integer$: "The property '<%=property%>', with current value: '<%=value%>', must be a integer (parent: <%=parentpath%>).",
number$: "The property '<%=property%>', with current value: '<%=value%>', must be a number (parent: <%=parentpath%>).",
boolean$: "The property '<%=property%>', with current value: '<%=value%>', must be a boolean (parent: <%=parentpath%>).",
date$: "The property '<%=property%>', with current value: '<%=value%>', must be a date (parent: <%=parentpath%>).",
array$: "The property '<%=property%>', with current value: '<%=value%>', must be a array (parent: <%=parentpath%>).",
object$: "The property '<%=property%>', with current value: '<%=value%>', must be a object (parent: <%=parentpath%>).",
function$: "The property '<%=property%>', with current value: '<%=value%>', must be a function (parent: <%=parentpath%>).",
only$: "The property '<%=property%>' is not recognised here. Recognised properties are: <%=rule.spec%> (parent: <%=parentpath%>).",
wild$: "The value <%=value%> does not match the expression '<%=rule.spec%>' (parent: <%=parentpath%>).",
re$: "The value <%=value%> does not match the regular expression <%=rule.spec%> (parent: <%=parentpath%>).",
type$: "The value <%=value%> is not of type '<%=rule.spec%>' (parent: <%=parentpath%>).",
format$: "The value <%=value%> is not of format '<%=rule.spec%>' (parent: <%=parentpath%>).",
minlen$: "The property '<%=property%>', with current value: '<%=value%>', must have minimum length '<%=rule.spec%>' (parent: <%=parentpath%>).",
maxlen$: "The property '<%=property%>', with current value: '<%=value%>', must have maximum length '<%=rule.spec%>' (parent: <%=parentpath%>).",
eq$: "The value <%=value%> does not equal '<%=rule.spec%>' (parent: <%=parentpath%>).",
lt$: "The value <%=value%> is not less than '<%=rule.spec%>' (parent: <%=parentpath%>).",
lte$: "The value <%=value%> is not less than or equal with '<%=rule.spec%>' (parent: <%=parentpath%>).",
gt$: "The value <%=value%> is not greater than '<%=rule.spec%>' (parent: <%=parentpath%>).",
gte$: "The value <%=value%> is not not greater than or equal with '<%=rule.spec%>' (parent: <%=parentpath%>).",
min$: "The value <%=value%> is not not greater than or equal with '<%=rule.spec%>' (parent: <%=parentpath%>).",
max$: "The value <%=value%> is not less than or equal with '<%=rule.spec%>' (parent: <%=parentpath%>).",
uniq$: "The value <%=value%> has duplicate elements.",
enum$: "The value <%=value%> must be one of '<%=rule.spec%>' (parent: <%=parentpath%>)."
}
function clone(ctxt) {
var newctxt = {
rules:ctxt.rules,
point:ctxt.point,
msgs:ctxt.msgs,
log:ctxt.log,
parents:ctxt.parents,
util:ctxt.util
}
return newctxt;
}
function formatparents(parents,topname) {
var out = topname || 'top level'
if( 0 < parents.length ) {
out = _.map(parents,function(p){return p.prop}).join('.')
if( topname ) {
out = topname+'.'+out
}
}
return out
}
function killcircles() {
var seen = []
return function(k,v){
if( (_.includes||_.contains)(seen,v) ) return '[CIRCULAR-REFERENCE]';
seen.push(v)
return v
}
}
function fail() {
var code = arguments[0]
var ctxt = arguments[1]
var cb = arguments[2]
if( !cb ) {
ctxt = arguments[0]
cb = arguments[1]
code = ctxt.rule.name
}
if(!cb) {
throw new Error('Parambulator: ctxt.util.fail: callback undefined')
}
if(!ctxt) {
return cb(new Error('Parambulator: ctxt.util.fail: ctxt undefined'))
}
var inserts = {
property:ctxt.prop,
value:ctxt.value||JSON.stringify(ctxt.point,killcircles()),
point:ctxt.point,
rule:ctxt.rule,
parentpath:ctxt.util.formatparents(ctxt.parents),
json:function(v){return JSON.stringify(v,killcircles())}
}
var msg = ctxt.msgs[code] || code
if( _.isFunction(msg) ) {
msg = msg(inserts,ctxt)
}
else {
msg = ctxt.util.msgmods( msg )
msg = _.template(msg)(inserts)
}
var err = new Error( msg )
err.parambulator = {
code: code,
property: ctxt.prop,
value: ctxt.point,
expected: (ctxt.rule ? ctxt.rule.spec : void 0),
parents: ctxt.parents,
point: ctxt.point,
rule: ctxt.rule}
return cb(err)
}
// Return an ordered array of property names. The prefix __ is removed
// from property names, both in the returned array, and the original
// object.
function proporder(obj) {
var pn = []
for( var p in obj ) {
var pc = p
if( 0 === p.indexOf('__') ) {
pc = p.substring(2)
obj[pc] = obj[p]
delete obj[p]
}
pn.push(pc)
}
return pn
}
/*
name$ -> rule name
name -> property names
*/
function Parambulator( spec, pref ) {
var self = {}
pref = pref || {}
var defaultrules = []
if( _.isString(spec) ) {
spec = jsonic(spec)
}
if( !spec || !_.isObject(spec) || _.isArray(spec) ) {
throw new Error('Parambulator: spec argument is not an object')
}
if( _.cloneDeep ) {
spec = _.cloneDeep(spec)
}
if( pref ) {
if( exp.ownprefs ) {
exp.ownprefs.validate(pref,function(err){
if( err ) throw err;
})
}
if( pref.valid && exp ) {
var prefparams = exp({'**':pref.valid})
prefparams.validate(spec,function(err){
if( err ) throw err;
})
}
}
//var rulenames = proporder(spec)
var rules = parse(spec)
parsedefault(spec, [], [])
self.toString = function() {
return JSON.stringify(rules)
}
/*
* Example:
* For a: {default$:123, type$:'number'}
* creates {"pathnames":["a"],"pathtypes":[],"defaultvalue":123}
*
* for d: {type$: 'array', __0: {default$:'arraytest0'}}
* creates {"pathnames":["d","0"],"pathtypes":["array"],"defaultvalue":"arraytest0"}
*/
function parsedefault(spec, path, pathtypes){
var innerulenames = []
var currentruletype = 'object'
for(var name in spec){
if(spec.hasOwnProperty(name)) {
var rule = spec[name]
if ('default$' == name){
var defaultrule = {}
defaultrule.pathnames = path
defaultrule.pathtypes = pathtypes.splice(1,pathtypes.length)
defaultrule.defaultvalue = rule
defaultrules.push(defaultrule)
}
if ('type$' == name){
currentruletype = rule
}
if( _.isObject(rule) && !_.isArray(rule) ) {
innerulenames.push(name)
}
}
}
for (var index in innerulenames){
if(innerulenames.hasOwnProperty(index)) {
var inner_rule = spec[innerulenames[index]]
var newpath = path.slice()
newpath.push(innerulenames[index])
var newpathtypes = pathtypes.slice()
newpathtypes.push(currentruletype)
parsedefault(inner_rule, newpath, newpathtypes)
}
}
}
function buildrule(name,rulespec) {
var func = (pref && pref.rules) ? pref.rules[name] : null
if( !func ) {
func = rulemap[name]
}
if( func ) {
var rule = {
func:func,
name:name,
spec:rulespec
}
return rule
}
else {
throw new Error("Parambulator: Unknown rule: "+name)
}
}
function parse(spec) {
var rules = []
var names = proporder(spec)
_.each(names, function(name){
var rulespec = spec[name]
// enables multiple rules of same name
if( 'list$' == name ) {
for(var i = 0; i < rulespec.length; i++) {
var rs = {}
rs[rulespec[i][0]]=rulespec[i][1]
rules.push(parse(rs)[0])
}
}
// enables quoting of property names that end in $
else if( 'prop$' == name ) {
var subrules = parse( rulespec.rules )
var rule = buildrule('descend$',{prop:rulespec.name,rules:subrules})
rules.push(rule)
}
// it's a rule - name$ syntax
else if( name.match(/\$$/) ) {
if((name === 'required$' || name === 'notempty$') &&
pref.multiErrors &&
_.isArray(rulespec))
{
_.each(rulespec, function(item) {
var item_rule = buildrule(name,[item],spec)
rules.push(item_rule)
})
}
else {
var build_rule = buildrule(name,rulespec,spec)
rules.push(build_rule)
}
}
else if( '**' == name ) {
var starstar_subrules = parse( rulespec )
var starstar_rule =
buildrule('recurse$',{prop:name,rules:starstar_subrules})
rules.push(starstar_rule)
}
// it's a property
else {
if( _.isObject(rulespec) && !_.isArray(rulespec) ) {
_.each( rulespec, function(v,p){
if( p.match(/\$$/) && _.isBoolean(v) && v ) {
var rule = buildrule(p,name,spec)
rules.push(rule)
delete rulespec[p]
}
})
var prop_subrules = parse( rulespec )
var prop_rule = buildrule('iterate$',{prop:name,rules:prop_subrules})
rules.push(prop_rule)
}
else if( _.isString(rulespec) ) {
// foo:'required$'
if( rulespec.match(/\$/) ) {
var rulespecs = rulespec.split(/\s*,\s*/)
_.each( rulespecs, function( rulespec ) {
rules.push( buildrule(rulespec,name) )
})
}
// foo:'bar*'
else {
rules.push( buildrule('descend$',{
prop:name,rules:[buildrule('wild$',rulespec)]
}))
}
}
// TODO: else check for other types, and use eq$ !!!
else if( _.isNumber(rulespec) ) {
rules.push( buildrule('descend$',{
prop:name,rules:[buildrule('eq$',rulespec)]
}))
}
else if( _.isBoolean(rulespec) ) {
rules.push( buildrule('descend$',{
prop:name,rules:[buildrule('eq$',rulespec)]
}))
}
else {
throw new Error("Parambulator: Unrecognized rule specification: "+rulespec)
}
}
})
return rules
}
var msgs = _.extend({},msgsmap,pref?pref.msgs:null)
self.validate = function( args, cb ) {
var reterr
var callback = pref.callbackmaker ? pref.callbackmaker(cb) : (cb||function(){})
var wrapcb = function(err){
reterr=err
// console.log('VALIDATE', JSON.stringify(arguments), arrayify(arguments))
callback.apply(null,arguments)
}
var errors = []
function execrules(ctxt,cb) {
if( _.isUndefined(args) ) {
return fail('no_input$',ctxt,cb)
}
var rules = ctxt.rules
function execrule(ruleI) {
if( ruleI < rules.length ) {
var rule = rules[ruleI]
if( !ctxt.point ) {
return execrule(ruleI+1)
}
ctxt.rule = rule
var specstr = JSON.stringify(rule.spec,killcircles())
ctxt.log.push('rule:'+rule.name+':exec:'+specstr)
rule.func(ctxt, function(err) {
if( err ) {
if(_.isArray(err)) {
// huh !?
// errors = errors.concat(err)
} else {
errors.push(err)
ctxt.log.push('rule:'+rule.name+':fail:'+specstr)
}
execrule(ruleI+1)
}
else {
ctxt.log.push('rule:'+rule.name+':pass:'+specstr)
execrule(ruleI+1)
}
})
}
else {
if(errors.length > 0 && pref.multiErrors) {
cb(errors,{log:ctxt.log})
} else {
var err = errors.length > 0 ? errors[0] : null;
cb(err,{log:ctxt.log})
}
}
}
execrule(0)
}
/*
* Example:
* For a: {"pathnames":["a"],"pathtypes":[],"defaultvalue":123}
* creates {a:123}
*
* for d: {"pathnames":["d","0"],"pathtypes":["array"],"defaultvalue":"arraytest0"}
* creates {d: ['arraytest0']}
*/
function validatedefaults(ctxt, cb){
for (var ruleindex in defaultrules){
var rule = defaultrules[ruleindex]
var obj = ctxt.point
for (var index in rule.pathnames){
var location = rule.pathnames[index]
if ( !_.has(obj, location) ){
// if is last in path then just add default value
if (index == rule.pathnames.length - 1){
obj[location] = rule.defaultvalue
}
// else create object or array and continue following path
else{
var type = rule.pathtypes[index]
var newobj
if ('object' == type){
newobj = {}
}
else if ('array' == type){
newobj = []
}
else{
// cannot continue, call cb and return false;
ctxt.util.fail('default$',ctxt,cb)
return;
}
obj[location] = newobj
obj = newobj
}
}
else{
obj = obj[location]
}
}
}
cb();
}
var ctxt = {rules:rules,point:args,msgs:msgs,log:[],parents:[]}
ctxt.util = {
formatparents:function(){
var args = arrayify(arguments)
args[1] = pref && pref.topname && !args[1] ? pref.topname : args[1]
return formatparents.apply(null,args)
},
msgmods:function(msg) {
return (pref.msgprefix||'') + msg + (pref.msgsuffix||'')
},
fail:fail,proplist:proplist,execrules:execrules,clone:clone}
validatedefaults(ctxt,function(err){
if (err){
wrapcb(err,{log:ctxt.log})
}
else {
execrules(ctxt,function(err){
wrapcb(err,{log:ctxt.log})
})
}
})
// only works if no async calls inside rules
return reterr
}
return self
}
var exp = function(){
var args = arrayify(arguments)
return Parambulator.apply(this,args)
}
// this is where Parambulator validates it's own input
exp.ownparams = new Parambulator({
'**':
{
strings$: ['required$','notempty$','atmostone$','exactlyone$','atleastone$'],
list$:[
['prop$',{name:'wild$', rules:{type$:'string'}}],
['prop$',{name:'type$', rules:{type$:['string','array']}}],
['prop$',{name:'format$', rules:{type$:['string','array']}}],
['prop$',{name:'re$', rules:{type$:'string'}}],