String#interpolate uses Template#evaluate.
This Template realization makes some actions in constructor of
Template class instead of Template#evaluate.
So if you will use Template#evaluate many times for one Template
object, you will save a little time.
On Aug 12, 6:41 pm, Allen <bla...@gmail.com> wrote:
> You should use Strings interpolate function for this. A template is
> meant to be reused many times with many different filler values.
>
> On Jun 14, 10:41 am, Yaffle <vic99...@yandex.ru> wrote:
>
>
>
> > var Template = Class.create({
> > initialize: function(template, pattern){
> > var parts = template.toString().split(pattern ||
> > Template.Pattern),
> > pl = parts.length,
> > pattern2 = /^([^.\[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
>
> > for(var i=1,k=1;i<pl;i+=4){
> > var before = parts[i] || '',
> > escaped = parts[i+1];
> > if(before=='\\'){
> > parts[k-1] += escaped;
> > }else{
> > parts[k-1] += before;
>
> > var propList = [],
> > expr = parts[i+2],
> > match = pattern2.exec(expr);
> > while(match){
> > propList.push( match[1].startsWith('[') ? match[2].replace(/\
> > \\\\]/g, ']') : match[1] );
> > if(!match[3]){
> > break;
> > }
> > expr = expr.substring('[' == match[3] ? match[1].length :
> > match[0].length);
> > match = pattern2.exec(expr);
> > }
>
> > if(propList.length){
> > parts[k] = propList;
> > parts[k+1] = parts[i+3];
> > k+=2;
> > }else{
> > parts[k-1] += parts[i+3];
> > }
>
> > }
> > }
> > parts.length = k;
> > this.parts = parts;
> > },
> > evaluate: function(object){
> > if(Object.isFunction(object.toTemplateReplacements)){
> > object = object.toTemplateReplacements();
> > }
> > object = object || '';
>
> > var r = this.parts[0];
> > for(var i=1,pl=this.parts.length;i<pl;i+=2){
> > var propList = this.parts[i],
> > ctx = object;
> > for(var j=0,l = propList.length;j<l && ctx;j++){
> > ctx = ctx[propList[j]];
> > }
> > r+= String.interpret(ctx)+this.parts[i+1];
> > }
> > return r;
> > }});
>
> > Template.Pattern = /(^|.|\r|\n)(#\{([^\}]*)\})/;
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