mirror of
https://github.com/flynx/pWiki.git
synced 2025-10-29 10:00:08 +00:00
483 lines
12 KiB
JavaScript
Executable File
483 lines
12 KiB
JavaScript
Executable File
/**********************************************************************
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*
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*
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*
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**********************************************************************/
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//var DEBUG = DEBUG != null ? DEBUG : true
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/*********************************************************************/
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// XXX not sure about these...
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var BaseData = {
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'System/title': function(){
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var o = Object.create(this)
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o.location = o.dir
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return o.title
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},
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'System/path': function(){
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return this.dir },
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'System/dir': function(){
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return normalizePath(path2lst(this.dir).slice(0, -1)) },
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'System/location': function(){
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return this.dir },
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'System/resolved': function(){
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var o = Object.create(this)
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o.location = o.dir
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return o.get(o.dir).acquire('./'+o.title)
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},
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'System/list': function(){
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var p = this.dir
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return Object.keys(this.__wiki_data)
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.map(function(k){
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if(k.indexOf(p) == 0){
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return path2lst(k.slice(p.length)).shift()
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}
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return null
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})
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.filter(e => e != null)
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.sort()
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.map(e => '['+ e +']')
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.join('<br>')
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},
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'System/tree': function(){
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var p = this.dir
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return Object.keys(this.__wiki_data)
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.map(function(k){
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if(k.indexOf(p) == 0){
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return k
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}
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return null
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})
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.filter(e => e != null)
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.sort()
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.map(e => '['+ e +']')
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.join('<br>')
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},
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'System/links': function(){
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var that = this
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var p = this.dir
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var res = []
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var wiki = this.__wiki_data
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Object.keys(wiki).forEach(function(k){
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(wiki[k].links || []).forEach(function(l){
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(l == p || that.get(path2lst(l).slice(0, -1)).acquire('./'+path2lst(l).pop()) == p)
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&& res.push([l, k])
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})
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})
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return res
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//.map(e => '['+ e[0] +'] <i>from page: ['+ e[1] +']</i>')
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.map(e => '['+ e[1] +'] <i>-> ['+ e[0] +']</i>')
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.sort()
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.join('<br>')
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},
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// XXX this needs a redirect...
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'System/delete': function(){
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var p = this.dir
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delete this.__wiki_data[p]
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},
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}
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// data store...
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// Format:
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// {
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// <path>: {
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// text: <text>,
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//
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// links: [
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// <offset>: <link>,
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// ],
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// }
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// }
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var data = {
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'Templates/EmptyPage': {
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text: 'Page [@include(./path)] is empty.' +'<br><br>'
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+'Links to this page:' +'<br>'
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+'@include(./links)' +'<br><br>'
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+'---' +'<br>'
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+'WikiHome',
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},
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}
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data.__proto__ = BaseData
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/*********************************************************************/
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var path2lst = path =>
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(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((p, i, l) =>
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(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(p =>
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p != null && p != '')
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var normalizePath = path =>
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path2lst(path).join('/')
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/*********************************************************************/
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var Wiki = {
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__wiki_data: data,
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__home_page__: 'WikiHome',
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__default_page__: 'EmptyPage',
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// Special sub-paths to look in on each level...
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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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// XXX should this be read only???
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__system__: 'System',
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//__redirect_template__: 'RedirectTemplate',
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__wiki_link__: RegExp('('+[
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'(\\./|\\.\\./|[A-Z][a-z0-9]+[A-Z/])[a-zA-Z0-9/]*',
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'\\[[^\\]]+\\]',
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].join('|') +')', 'g'),
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// Resolve '.' and '..' relative to current page...
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//
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// NOTE: '.' is relative to .path and not to .dir
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// NOTE: this is here as it needs the context to resolve...
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resolveDotPath: function(path){
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path = normalizePath(path)
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// '.' or './*'
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return path == '.' || /^\.\//.test(path) ?
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//path.replace(/^\./, this.dir)
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path.replace(/^\./, this.path)
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// '..' or '../*'
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: path == '..' || /^\.\.\//.test(path) ?
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//path.replace(/^\.\./,
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// normalizePath(path2lst(this.dir).slice(0, -1)))
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path.replace(/^\.\./, this.dir)
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: path
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},
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// current location...
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get location(){
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return this.__location || this.__home_page__ },
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set location(value){
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this.__location = this.resolveDotPath(value) },
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get data(){
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return this.__wiki_data[this.acquire()] },
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// page path...
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//
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// Format:
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// <dir>/<title>
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//
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// NOTE: changing this will move the page to the new path and change
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// .location acordingly...
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// NOTE: same applies to path parts below...
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// NOTE: changing path will update all the links to the moving page.
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// NOTE: if a link can't be updated without a conflit then it is left
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// unchanged, and a redirect page will be created.
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get path(){
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return this.location },
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// XXX should lik updating be part of this???
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// XXX use a template for the redirect page...
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set path(value){
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value = this.resolveDotPath(value)
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var l = this.location
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if(value == l){
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return
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}
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// old...
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var otitle = this.title
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var odir = this.dir
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if(this.exists(l)){
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this.__wiki_data[value] = this.__wiki_data[l]
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}
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this.location = value
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// new...
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var ntitle = this.title
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var ndir = this.dir
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var redirect = false
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// update links to this page...
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this.pages(function(page){
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// skip the old page...
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if(page.location == l){
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return
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}
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page.text = page.text.replace(page.__wiki_link__, function(lnk){
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var from = lnk[0] == '[' ? lnk.slice(1, -1) : lnk
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// get path/title...
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var p = path2lst(from)
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var t = p.pop()
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p = normalizePath(p)
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var target = page.get(p).acquire('./'+t)
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// page target changed...
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// NOTE: this can happen either when a link was an orphan
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// or if the new page path shadowed the original
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// target...
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// XXX should we report the exact condition here???
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if(target == value){
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console.log('Link target changed:', lnk, '->', value)
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return lnk
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// skip links that do not resolve to target...
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} else if(page.get(p).acquire('./'+t) != l){
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return lnk
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}
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// format the new link...
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var to = p == '' ? ntitle : p +'/'+ ntitle
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to = lnk[0] == '[' ? '['+to+'}' : to
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// explicit link change -- replace...
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if(from == l){
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//console.log(lnk, '->', to)
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return to
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// path did not change -- change the title...
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} else if(ndir == odir){
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// conflict: the new link will not resolve to the
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// target page...
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if(page.get(p).acquire('./'+ntitle) != value){
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console.log('ERR:', lnk, '->', to,
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'is shadowed by:', page.get(p).acquire('./'+ntitle))
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// XXX should we add a note to the link???
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redirect = true
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// replace title...
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} else {
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//console.log(lnk, '->', to)
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return to
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}
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// path changed -- keep link + add redirect page...
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} else {
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redirect = true
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}
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// no change...
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return lnk
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})
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})
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// redirect...
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//
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// XXX should we use a template here???
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// ...might be a good idea to set a .redirect attr and either
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// do an internal/transparent redirect or show a redirect
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// template
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// ...might also be good to add an option to fix the link from
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// the redirect page...
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if(redirect){
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console.log('CREATING REDIRECT PAGE:', l, '->', value, '')
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this.__wiki_data[l].text = 'REDIRECT TO: ' + value
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+'<br>'
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+'<br><i>NOTE: This page was created when renaming the target '
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+'page that resulted new link being broken (i.e. resolved '
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+'to a different page from the target)</i>'
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this.__wiki_data[l].redirect = value
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// cleaup...
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} else {
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delete this.__wiki_data[l]
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}
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},
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// path parts: directory...
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//
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// NOTE: see .path for details...
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get dir(){
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return path2lst(this.location).slice(0, -1).join('/') },
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set dir(value){
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this.path = value +'/'+ this.title },
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// path parts: title...
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//
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// NOTE: see .path for details...
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get title(){
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return path2lst(this.location).pop() },
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set title(value){
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this.path = this.dir +'/'+ value },
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// page content...
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//
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// Test acquesition order:
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// - explicit path
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// - for each level in path
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// - .title explicitly in path
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// - .title in templates
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// - .title in system
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// - aquire empty page (same order as above)
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//
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get text(){
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var data = this.data
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return data instanceof Function ? data.call(this, this)
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: typeof(data) == typeof('str') ? data
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: data != null ? data.text
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: ''
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},
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set text(value){
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var l = this.location
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// prevent overwriting actions...
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if(this.data instanceof Function){
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return
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}
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this.__wiki_data[l] = this.__wiki_data[l] || {}
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this.__wiki_data[l].text = value
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// cache links...
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delete this.__wiki_data[l].links
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this.__wiki_data[l].links = this.links
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},
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// NOTE: this is set by setting .text
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get links(){
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var data = this.data || {}
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var links = data.links = data.links
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|| (this.text.match(this.__wiki_link__) || [])
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// unwrap explicit links...
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.map(e => e[0] == '[' ? e.slice(1, -1) : e)
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// unique...
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.filter((e, i, l) => l.slice(0, i).indexOf(e) == -1)
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return links
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},
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// XXX list children/sub-pages...
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get list(){
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},
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// navigation...
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get parent(){
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return this.get(this.dir)
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},
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get: function(path){
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var o = Object.create(this)
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o.location = path || this.path
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return o
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},
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exists: function(path){
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return normalizePath(path) in this.__wiki_data },
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// get title from dir and then go up the tree...
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acquire: 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.dir)
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var acquire_from = this.__acquesition_order__ || []
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var post_acquire_from = this.__post_acquesition_order__ || []
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var data = this.__wiki_data
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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.__system__
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&& _get([this.__system__], title)
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// NOTE: this may be null...
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return p
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|| ((!no_default && title != this.__default_page__) ?
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this.acquire('./'+this.__default_page__)
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: null)
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},
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// serialization...
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json: function(path){
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return path == null ? JSON.parse(JSON.stringify(this.__wiki_data))
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: path == '.' ? {
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path: this.location,
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text: this.text,
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}
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: {
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path: path,
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text: (this.__wiki_data[path] || {}).text,
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}
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},
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// XXX should we inherit from the default???
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load: function(json){
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this.__wiki_data = json
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},
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// iteration...
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// XXX this is not page specific, might need refactoring...
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pages: function(callback){
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var that = this
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Object.keys(this.__wiki_data).forEach(function(location){
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// XXX not sure if this is the right way to go...
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var o = Object.create(that)
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o.location = location
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callback.call(o, o)
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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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* vim:set ts=4 sw=4 : */
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