\n'
+'\n'
+'',
},
}
data.__proto__ = BaseData
/*********************************************************************/
var path2lst = path =>
(path instanceof Array ? path : path.split(/[\\\/]+/g))
// handle '..' (lookahead) and trim path elements...
// NOTE: this will not touch the leading '.' or '..'
.map((p, i, l) =>
(i > 0 && (p.trim() == '..' || p.trim() == '.')
|| (l[i+1] || '').trim() == '..') ?
null
: p.trim())
// cleanup and clear '.'...
.filter(p =>
p != null && p != '')
var normalizePath = path =>
path2lst(path).join('/')
/*********************************************************************/
var Wiki = {
__wiki_data: data,
__home_page__: 'WikiHome',
__default_page__: 'EmptyPage',
// Special sub-paths to look in on each level...
__acquesition_order__: [
'Templates',
],
__post_acquesition_order__: [
],
// XXX should this be read only???
__system__: 'System',
//__redirect_template__: 'RedirectTemplate',
__wiki_link__: RegExp('('+[
'(\\./|\\.\\./|[A-Z][a-z0-9]+[A-Z/])[a-zA-Z0-9/]*',
'\\[[^\\]]+\\]',
].join('|') +')', 'g'),
// Resolve '.' and '..' relative to current page...
//
// NOTE: '.' is relative to .path and not to .dir
// NOTE: this is a method as it needs the context to resolve...
resolveDotPath: function(path){
path = normalizePath(path)
// '.' or './*'
return path == '.' || /^\.\//.test(path) ?
//path.replace(/^\./, this.dir)
path.replace(/^\./, this.path)
// '..' or '../*'
: path == '..' || /^\.\.\//.test(path) ?
//path.replace(/^\.\./,
// normalizePath(path2lst(this.dir).slice(0, -1)))
path.replace(/^\.\./, this.dir)
: path
},
// current location...
get location(){
return this.__location || this.__home_page__ },
set location(value){
this.__location = this.resolveDotPath(value) },
get data(){
return this.__wiki_data[this.acquire()] },
// page path...
//
// Format:
// /
//
// NOTE: changing this will move the page to the new path and change
// .location acordingly...
// NOTE: same applies to path parts below...
// NOTE: changing path will update all the links to the moving page.
// NOTE: if a link can't be updated without a conflit then it is left
// unchanged, and a redirect page will be created.
get path(){
return this.location },
// XXX should lik updating be part of this???
// XXX use a template for the redirect page...
set path(value){
value = this.resolveDotPath(value)
var l = this.location
if(value == l){
return
}
// old...
var otitle = this.title
var odir = this.dir
if(this.exists(l)){
this.__wiki_data[value] = this.__wiki_data[l]
}
this.location = value
// new...
var ntitle = this.title
var ndir = this.dir
var redirect = false
// update links to this page...
this.pages(function(page){
// skip the old page...
if(page.location == l){
return
}
page.raw = page.raw.replace(page.__wiki_link__, function(lnk){
var from = lnk[0] == '[' ? lnk.slice(1, -1) : lnk
// get path/title...
var p = path2lst(from)
var t = p.pop()
p = normalizePath(p)
var target = page.get(p).acquire('./'+t)
// page target changed...
// NOTE: this can happen either when a link was an orphan
// or if the new page path shadowed the original
// target...
// XXX should we report the exact condition here???
if(target == value){
console.log('Link target changed:', lnk, '->', value)
return lnk
// skip links that do not resolve to target...
} else if(page.get(p).acquire('./'+t) != l){
return lnk
}
// format the new link...
var to = p == '' ? ntitle : p +'/'+ ntitle
to = lnk[0] == '[' ? '['+to+'}' : to
// explicit link change -- replace...
if(from == l){
//console.log(lnk, '->', to)
return to
// path did not change -- change the title...
} else if(ndir == odir){
// conflict: the new link will not resolve to the
// target page...
if(page.get(p).acquire('./'+ntitle) != value){
console.log('ERR:', lnk, '->', to,
'is shadowed by:', page.get(p).acquire('./'+ntitle))
// XXX should we add a note to the link???
redirect = true
// replace title...
} else {
//console.log(lnk, '->', to)
return to
}
// path changed -- keep link + add redirect page...
} else {
redirect = true
}
// no change...
return lnk
})
})
// redirect...
//
// XXX should we use a template here???
// ...might be a good idea to set a .redirect attr and either
// do an internal/transparent redirect or show a redirect
// template
// ...might also be good to add an option to fix the link from
// the redirect page...
if(redirect){
console.log('CREATING REDIRECT PAGE:', l, '->', value, '')
this.__wiki_data[l].raw = 'REDIRECT TO: ' + value
+'<br>'
+'<br><i>NOTE: This page was created when renaming the target '
+'page that resulted new link being broken (i.e. resolved '
+'to a different page from the target)</i>'
this.__wiki_data[l].redirect = value
// cleaup...
} else {
delete this.__wiki_data[l]
}
},
// path parts: directory...
//
// NOTE: see .path for details...
get dir(){
return path2lst(this.location).slice(0, -1).join('/') },
set dir(value){
this.path = value +'/'+ this.title },
// path parts: title...
//
// NOTE: see .path for details...
get title(){
return path2lst(this.location).pop() },
set title(value){
this.path = this.dir +'/'+ value },
// page content...
get raw(){
var data = this.data
return data instanceof Function ? data.call(this, this)
: typeof(data) == typeof('str') ? data
: data != null ? data.text
: ''
},
set raw(value){
var l = this.location
// prevent overwriting actions...
if(this.data instanceof Function){
return
}
this.__wiki_data[l] = this.__wiki_data[l] || {}
this.__wiki_data[l].text = value
// cache links...
delete this.__wiki_data[l].links
this.__wiki_data[l].links = this.links
},
// XXX take .raw, parse macros and apply filters...
get text(){ return this.raw },
// NOTE: this is set by setting .text
get links(){
var data = this.data || {}
var links = data.links = data.links
|| (this.raw.match(this.__wiki_link__) || [])
// unwrap explicit links...
.map(e => e[0] == '[' ? e.slice(1, -1) : e)
// unique...
.filter((e, i, l) => l.slice(0, i).indexOf(e) == -1)
return links
},
// XXX list children/sub-pages...
get list(){
},
// navigation...
get parent(){
return this.get('..') },
get: function(path){
var o = Object.create(this)
o.location = path || this.path
return o
},
exists: function(path){
return normalizePath(path || this.path) in this.__wiki_data },
// get title from dir and then go up the tree...
acquire: function(path, no_default){
var that = this
// handle paths and relative paths...
var p = this.get(path)
var title = p.title
path = path2lst(p.dir)
var acquire_from = this.__acquesition_order__ || []
var post_acquire_from = this.__post_acquesition_order__ || []
var data = this.__wiki_data
var _get = function(path, title, lst){
lst = (lst == null || lst.length == 0) ? [''] : lst
for(var i=0; i < lst.length; i++){
var p = path.concat([lst[i], title])
if(that.exists(p)){
p = normalizePath(p)
return that.__wiki_data[p] && p
}
}
}
while(true){
// get title from path...
var p = _get(path, title)
// get title from special paths in path...
|| _get(path, title, acquire_from)
if(p != null){
return p
}
if(path.length == 0){
break
}
path.pop()
}
// default paths...
var p = _get(path, title, post_acquire_from)
// system path...
|| this.__system__
&& _get([this.__system__], title)
// NOTE: this may be null...
return p
|| ((!no_default && title != this.__default_page__) ?
this.acquire('./'+this.__default_page__)
: null)
},
// serialization...
// XXX
json: function(path){
return path == null ? JSON.parse(JSON.stringify(this.__wiki_data))
: path == '.' ? {
path: this.location,
text: this.raw,
}
: {
path: path,
text: (this.__wiki_data[path] || {}).raw,
}
},
// XXX should we inherit from the default???
load: function(json){
this.__wiki_data = json
},
// iteration...
// XXX this is not page specific, might need refactoring...
pages: function(callback){
var that = this
Object.keys(this.__wiki_data).forEach(function(location){
// XXX not sure if this is the right way to go...
var o = Object.create(that)
o.location = location
callback.call(o, o)
})
return this
},
}
/*********************************************************************/
var macro = {
__macro__pattern__: null,
__filters__: [
],
context: null,
filter: {
},
macro: {
// select filter to post-process text...
filter_args: ['name'],
filter: function(args, text, _, filters){
var filter = args[0] || args.name
filters.push(filter)
return ''
},
// include page/slot...
include_args: ['src', 'slot'],
include: function(args){
var path = args.src
var text = this.context.get(path).text
return this.parse(text)
},
// fill/define slot (stage 1)...
// XXX
slot_args: ['name'],
slot: function(args, text, slots){
var name = args.name
if(slots[name] == null){
slots[name] = text
// XXX return a slot macro parsable by stage 2...
return text
} else if(name in slots){
slots[name] = text
// XXX on stage 2 need to return text
return ''
}
},
},
parseArgs: function(macro, args){
// XXX parse args and populate the dict via .*_args attr...
// XXX
},
parse: function(text){
var that = this
var filters = []
var slots = {}
// macro stage 1...
text = text.replace(this.__macro__pattern__, function(match, macro, args, text){
args = that.parseArgs(macro, args)
return macro in that.macro ?
that.macro[macro].call(that, args, text, slots, filters)
: match
})
// macro stage 2...
text = text.replace(this.__macro__pattern__, function(match, macro, args, text){
args = that.parseArgs(macro, args)
return macro in that.macro ?
that.macro[macro].call(that, args, text, slots, filters)
: match
})
// filter stage....
filters.forEach(function(k){
text = that.filter[k].call(that, text)
})
return text
},
}
/**********************************************************************
* vim:set ts=4 sw=4 : */