mirror of
https://github.com/flynx/pWiki.git
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436 lines
10 KiB
JavaScript
Executable File
436 lines
10 KiB
JavaScript
Executable File
/**********************************************************************
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*
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*
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*
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**********************************************************************/
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(typeof(define)[0]=='u'?function(f){module.exports=f(require)}:define)(
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function(require){ var module={} // makes module AMD/node compatible...
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/*********************************************************************/
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var object = require('lib/object')
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var actions = require('lib/actions')
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var features = require('lib/features')
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/*********************************************************************/
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var path2lst = function(path){
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return (path instanceof Array ? path : path.split(/[\\\/]+/g))
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// handle '..' (lookahead) and trim path elements...
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// NOTE: this will not touch the leading '.' or '..'
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.map(function(p, i, l){
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return (i > 0 && (p.trim() == '..' || p.trim() == '.')
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|| (l[i+1] || '').trim() == '..') ?
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null
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: p.trim() })
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// cleanup and clear '.'...
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.filter(function(p){
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return p != null && p != '' })}
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var normalizePath = function(path){ return path2lst(path).join('/') }
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/*********************************************************************/
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// base pWiki object...
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var pWiki = object.makeConstructor('pWiki', actions.MetaActions)
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// pWiki featureset...
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var pWikiFeatures = new features.FeatureSet()
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// base instance constructor...
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pWikiFeatures.__actions__ =
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function(){ return actions.Actions(pWiki()) }
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/*********************************************************************/
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// XXX should this be art of the main API or a separate entity???
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// XXX should we combine page and wiki api???
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// - pWikiData is wiki api
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// - pWiki is page api
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var pWikiData = {
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__data: null,
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// get a list of matching paths...
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// XXX sort API???
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match: function(path){
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// path patterns -- "*"
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if(path.indexOf('*') >= 0){
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return [ path ]
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}
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// get the tail...
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var tail = path.split(/\*/g).pop()
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tail = tail == path ? '' : tail
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var pattern = RegExp('^'
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+normalizePath(path)
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// quote regexp chars...
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.replace(/([\.\\\/\(\)\[\]\$\+\-\{\}\@\^\&\?\<\>])/g, '\\$1')
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// convert '*' and '**' to regexp...
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.replace(/\*\*/g, '.*')
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.replace(/^\*|([^.])\*/g, '$1[^\\/]*')
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+'$')
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var data = this.__data || {}
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return Object.keys(data)
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// XXX is this correct???
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.concat(Object.keys(data.__proto__)
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// do not repeat overloaded stuff...
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.filter(function(e){ return !data.hasOwnProperty(e) }))
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.map(function(p){ return tail != '' ?
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normalizePath(p +'/'+ tail)
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: p })
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.filter(function(p){ return pattern.test(p) })
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},
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// get/set data at path...
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// XXX should this overwrite or expand???
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// XXX should from be pattern compatible???
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data: function(path, value){
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if(value == null){
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return this.__data ? this.__data[path] : null
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} else {
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this.__data = this.__data || {}
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this.__data[path] = value
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return this
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}
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},
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// move data from path to path...
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// XXX should from be pattern compatible???
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move: function(from, to){
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if(this.__data == null){
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return
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}
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var d = this.__data[from]
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this.clear(from)
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this.__data[to] = d
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return this
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},
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// clear data at path...
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clear: function(path){
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var that = this
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this.match(path).forEach(function(p){
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delete that.__data[p]
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})
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return this
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},
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}
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/*********************************************************************/
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var pWikiPageActions = actions.Actions({
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config: {
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'home-page': 'WikiHome',
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'default-page': 'EmptyPage',
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'system-path': 'System',
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'acquesition-order': [
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'Templates',
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],
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'post-acquesition-order': [],
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},
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// pWikiData...
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wiki: null,
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get length(){
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return this.wiki.match(this.location().path).length },
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resolve: ['Resolve relative path and expand path variables',
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function(path){
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path = normalizePath(path)
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// path variables...
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// XXX make this more modular...
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path
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.replace(/\$NOW|\$\{NOW\}/g, Date.now())
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.replace(/\$TITLE|\$\{TITLE\}/g, this.title())
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.replace(/\$BASE|\$\{BASE\}/g, this.base())
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.replace(/\$INDEX|\$\{INDEX\}/g, this.at())
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// relative paths -- "." and ".."
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if(path.indexOf('.') >= 0){
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path =
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// '.' or './*'
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path == '.' || /^\.\//.test(path) ?
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path.replace(/^\./, this.base)
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// '..' or '../*'
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: path == '..' || /^\.\.\//.test(path) ?
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path.replace(/^\.\./, this.base)
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: path
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}
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return path
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}],
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location: ['Get or set location',
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function(value){
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if(value == null){
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return
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}
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// XXX should we set/return a default empty value here???
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this.__location = this.__location || {}
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// get location...
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if(arguments.length == 0){
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return this.__location || this.config['home-page']
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}
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// set location index...
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if(typeof(value) == typeof(123)){
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this.__location.at = value
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// set location path...
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} else if(typeof(value) == typeof('str')){
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this.__location.path = this.resolve(value)
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this.__location.at = 0
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// object...
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} else {
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this.__location = value
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}
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}],
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path: ['Page/Get or set path',
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function(value){
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// get explcit path from location (acounting for 'at')...
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if(arguments.length == 0){
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var location = this.location()
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return this.wiki.match(location.path)[location.at]
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// move page to path...
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} else if(value != null) {
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this.wiki.move(this.path(), this.resolve(value))
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}
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}],
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title: ['Page/Get or set title',
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function(value){
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if(arguments.length == 0){
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return path2list(this.path()).pop()
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} else if(value != null){
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this.path(this.base() +'/'+ value)
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}
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}]
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base: ['Page/Get or set directory',
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function(base){
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if(arguments.length == 0){
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return path2list(this.path()).slice(0, -1).join('/')
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} else if(base != null){
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this.path(base +'/'+ this.title())
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}
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}]
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acquire: ['',
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function(path, no_default){
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var that = this
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// handle paths and relative paths...
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var p = this.get(path)
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var title = p.title()
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path = path2lst(p.base())
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var acquire_from = this.config['acquesition-order'] || []
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var post_acquire_from = this.config['post-acquesition-order'] || []
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var _get = function(path, title, lst){
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lst = (lst == null || lst.length == 0) ? [''] : lst
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for(var i=0; i < lst.length; i++){
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var p = path.concat([lst[i], title])
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if(that.exists(p)){
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p = normalizePath(p)
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return that.wiki.data(p) && p
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}
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}
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}
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while(true){
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// get title from path...
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var p = _get(path, title)
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// get title from special paths in path...
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|| _get(path, title, acquire_from)
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if(p != null){
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return p
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}
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if(path.length == 0){
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break
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}
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path.pop()
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}
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// default paths...
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var p = _get(path, title, post_acquire_from)
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// system path...
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|| this.config['system-path']
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&& _get([this.config['system-path']], title)
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// NOTE: this may be null...
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return p
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|| ((!no_default && title != this.config['default-page']) ?
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this.acquire('./'+this.config['default-page'])
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: null)
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}],
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exists: ['Page/Check if path explicitly exists.',
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function(path){
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path = path || this.path()
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var location = this.location()
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return this.wiki.match(location.path)[location.at] !== undefined
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}],
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data: ['Page/Get or set data',
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function(value){
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// get -> acquire page and get it's data...
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if(arguments.length == 0){
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return this.wiki.data(this.acquire())
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// set -> get explicit path and set data to it...
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} else if(value != null) {
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this.wiki.data(this.path(), value || '')
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}
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}],
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clear: ['Clear page',
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function(){ this.wiki.clear(this.path()) }],
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// NOTE: a clone references the same data, no copying is done.
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clone: ['Get page clone (new reference)',
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function(){
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//var o = (new this.constructor())
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var o = Object.create(this)
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.location(this.location())
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o.__parent_context = this
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if(this.__order){
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o.__order = this.__order.slice()
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}
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return o
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}],
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end: ['Get paren context of clone',
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function(){ return this.__parent_context || this }],
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// XXX should this return false on empty path???
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copy: ['Copy page to path',
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function(path){
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return path != null
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&& this
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.get(path)
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// NOTE: this is here mainly to maintain the context stack...
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.clone()
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.data(this.data()) }],
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get: ['Get page by path',
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function(path){
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return this
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.clone()
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.location(path) }],
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at: ['Get index or page at given index',
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function(n){
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// get current index...
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if(n == null){
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return this.location().at || 0
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}
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// get page at index...
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var l = this.length
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// out of bounds...
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if(n >= l || n < -l){
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return null
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}
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var res = this.clone()
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n = n < 0 ? l - n : n
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// XXX do we min/max n???
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n = Math.max(n, 0)
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n = Math.min(l-1, n)
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res.location(n)
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return res
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}],
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prev: ['Get previous page',
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function(){
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var i = this.at() - 1
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// NOTE: need to guard against overflows...
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return i >= 0 ? this.at(i) : null }],
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next: ['Get next page',
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function(){ return this.at(this.at() + 1) }],
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map: ['',
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function(func){
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var res = []
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for(var i=0; i < this.length; i++){
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var page = this.at(i)
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res.push(func.call(page, page, i))
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}
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return res
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}],
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// XXX add path (str) filters...
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filter: ['',
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function(func){
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var res = []
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for(var i=0; i < this.length; i++){
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var page = this.at(i)
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func.call(page, page, i) && res.push(page)
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}
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return res
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}],
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each: ['',
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function(func){ this.map(func) }],
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// XXX reduce???
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sort: ['', function(){ }],
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reverse: ['', function(){ }],
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// XXX not sure if this is the right way to go...
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update: ['', function(){ }],
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})
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var pWikiPage = pWikiFeatures.Featre({
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title: '',
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tag: 'page',
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actions: pWikiPageActions,
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})
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var pWikiDictStore = pWikiFeatures.Featre({
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title: '',
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tag: 'dict-store',
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})
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var pWikiLocalStorageStore = pWikiFeatures.Featre({
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title: '',
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tag: 'localstorage-store',
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depends: [
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'dict-store',
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],
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})
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var pWikiPouchDBStore = pWikiFeatures.Featre({
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title: '',
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tag: 'pouchdb-store',
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})
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/**********************************************************************
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* vim:set ts=4 sw=4 : */ return module })
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