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added aliases....

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2018-11-25 03:29:21 +03:00
parent fdb80358b0
commit 9728c97ad2
1 changed files with 76 additions and 4 deletions
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80
ui (gen4)/imagegrid/tags.js
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@ -32,7 +32,9 @@ var TagsClassPrototype = {
//
// XXX should this sort sets???
// XXX should this be .normalizeTags(..) ???
// XXX should this resolve aliases???
normalize: function(...tags){
var that = this
var tagRemovedChars = (this.config || {})['tagRemovedChars']
tagRemovedChars = tagRemovedChars instanceof RegExp ?
tagRemovedChars
@ -77,11 +79,17 @@ var TagsClassPrototype = {
// 2) only normalized -- simpler but may surprise the user and not be as pretty...
var TagsPrototype = {
config: {
tagRemovedChars: '\\s-_',
tagRemovedChars: '[\\s-_]',
},
// data...
//
// Format:
// [ <tag>, ... ]
//
// XXX Q: should these be normalized???
__persistent_tags: [],
// Format:
// {
// <tag>: [ <item>, ... ],
@ -89,11 +97,20 @@ var TagsPrototype = {
// }
__index: {},
// Format:
// {
// <alias>: <tag>,
// }
//
// XXX Q: should we use these as a dict for normalized user input???
// ...i.e. 'A B C': 'abc'
__aliases: {},
// Utils...
//
// proxy to Tags.normalize(..)
// XXX should this be .normalizeTags(..) ???
// XXX Q: should this be .normalizeTags(..) ???
normalize: function(...tags){
return this.constructor.normalize.call(this, ...tags) },
@ -127,8 +144,63 @@ var TagsPrototype = {
// XXX
return this
},
alias: function(){
// XXX
//
// Resolve alias...
// .alias(tag)
// -> value
// -> undefined
//
// Set alias...
// .alias(tag, value)
// -> this
//
// Remove alias...
// .alias(tag, null)
// -> this
//
alias: function(tag, value){
// resolve...
if(arguments.length == 1){
var seen = []
var next
do {
tag = next || tag.trim()
seen.push(tag)
next = this.__aliases[tag]
|| this.__aliases[this.normalize(tag)]
// check for loops...
if(seen.indexOf(next) >= 0){
throw new Error(`Recursive alias chain: "${ seen.join('", "') }"`)
}
} while(!next)
return seen.length > 1 ? tag : undefined
// remove...
} else if(value == null){
delete this.__aliases[tag.trim()]
delete this.__aliases[this.normalize(tag)]
// set...
} else {
tag = tag.trim()
value = this.normalize(value)
// check for recursion...
var chain = [value]
var cur = value
var t = this.normalize(tag)
do {
cur = this.__aliases[cur]
|| this.__aliases[this.normalize(cur)]
chain.push(cur)
if(cur == t){
throw new Error(`Creating a recursive alias chain: "${ chain.join('", "') }"`)
}
} while(cur)
this.__aliases[tag] = value
}
return this
},