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d4c4c34795952817714c9d6e8038bb54ced2e425
node_app/static/javascripts/jsrender.js
Stuiart Stent d4c4c34795 initial commit
2012-10-26 18:04:20 -04:00

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/*! JsRender v1.0pre: http://github.com/BorisMoore/jsrender */
/*
* Optimized version of jQuery Templates, for rendering to string.
* Does not require jQuery, or HTML DOM
* Integrates with JsViews (http://github.com/BorisMoore/jsviews)
* Copyright 2012, Boris Moore
* Released under the MIT License.
*/
// informal pre beta commit counter: 15
this.jsviews || this.jQuery && jQuery.views || (function(global, undefined) {
//========================== Top-level vars ==========================
var versionNumber = "v1.0pre",
$, rTag, rTmplString, extend,
delimOpenChar0 = "{", delimOpenChar1 = "{", delimCloseChar0 = "}", delimCloseChar1 = "}", sub = {},
FALSE = false, TRUE = true,
jQuery = global.jQuery,
rPath = /^(?:null|true|false|\d[\d.]*|([\w$]+|~([\w$]+)|#(view|([\w$]+))?)([\w$.]*?)(?:[.[]([\w$]+)\]?)?|(['"]).*\8)$/g,
// nil object helper view viewProperty pathTokens leafToken string
rParams = /(\()(?=|\s*\()|(?:([([])\s*)?(?:([#~]?[\w$.]+)?\s*((\+\+|--)|\+|-|&&|\|\||===|!==|==|!=|<=|>=|[<>%*!:?\/]|(=))\s*|([#~]?[\w$.]+)([([])?)|(,\s*)|(\(?)\\?(?:(')|("))|(?:\s*([)\]])([([]?))|(\s+)/g,
// lftPrn lftPrn2 path operator err eq path2 prn comma lftPrn2 apos quot rtPrn prn2 space
// (left paren? followed by (path? followed by operator) or (path followed by paren?)) or comma or apos or quot or right paren or space
rNewLine = /\r?\n/g,
rUnescapeQuotes = /\\(['"])/g,
rEscapeQuotes = /\\?(['"])/g,
rBuildHash = /\x08(~)?([^\x08]+)\x08/g,
autoViewKey = 0,
autoTmplName = 0,
escapeMapForHtml = {
"&": "&amp;",
"<": "&lt;",
">": "&gt;"
},
tmplAttr = "data-jsv-tmpl",
fnDeclStr = "var j=j||" + (jQuery ? "jQuery." : "js") + "views,",
htmlSpecialChar = /[\x00"&'<>]/g,
slice = Array.prototype.slice,
render = {},
// jsviews object ($.views if jQuery is loaded)
jsv = {
jsviews: versionNumber,
sub: sub, // subscription, e.g. JsViews integration
debugMode: TRUE,
render: render,
templates: templates,
tags: tags,
helpers: helpers,
converters: converters,
View: View,
delimiters: setDelimiters,
_convert: convert,
_err: function(e) {
return jsv.debugMode ? ("<br/><b>Error:</b> <em> " + (e.message || e) + ". </em>") : '""';
},
_tmplFn: tmplFn,
_tag: renderTag
};
//========================== Top-level functions ==========================
//===================
// jsviews.delimiters
//===================
function setDelimiters(openChars, closeChars) {
// Set the tag opening and closing delimiters. Default is "{{" and "}}"
// openChar, closeChars: opening and closing strings, each with two characters
if (!jsv.rTag || arguments.length) {
delimOpenChar0 = openChars ? "\\" + openChars.charAt(0) : delimOpenChar0; // Escape the characters - since they could be regex special characters
delimOpenChar1 = openChars ? "\\" + openChars.charAt(1) : delimOpenChar1;
delimCloseChar0 = closeChars ? "\\" + closeChars.charAt(0) : delimCloseChar0;
delimCloseChar1 = closeChars ? "\\" + closeChars.charAt(0) : delimCloseChar1;
// Build regex with new delimiters
jsv.rTag = rTag // make rTag available to JsViews (or other components) for parsing binding expressions
// tag (followed by / space or }) or cvtr+colon or html or code
= "(?:(?:(\\w+(?=[\\/\\s" + delimCloseChar0 + "]))|(?:(\\w+)?(:)|(>)|(\\*)))"
// params
+ "\\s*((?:[^" + delimCloseChar0 + "]|" + delimCloseChar0 + "(?!" + delimCloseChar1 + "))*?)";
// slash or closeBlock }}
rTag = new RegExp(delimOpenChar0 + delimOpenChar1 + rTag + "(\\/)?|(?:\\/(\\w+)))" + delimCloseChar0 + delimCloseChar1, "g");
// Default rTag: tag converter colon html code params slash closeBlock
// /{{(?:(?:(\w+(?=[\/\s}]))|(?:(\w+)?(:)|(>)|(\*)))\s*((?:[^}]|}(?!}))*?)(\/)?|(?:\/(\w+)))}}
rTmplString = new RegExp("<.*>|" + openChars + ".*" + closeChars);
}
return [delimOpenChar0, delimOpenChar1, delimCloseChar0, delimCloseChar1];
}
//=================
// View._hlp
//=================
function getHelper(helper) {
// Helper method called as view._hlp() from compiled template, for helper functions or template parameters ~foo
var view = this,
tmplHelpers = view.tmpl.helpers || {};
helper = (view.ctx[helper] !== undefined ? view.ctx : tmplHelpers[helper] !== undefined ? tmplHelpers : helpers[helper] !== undefined ? helpers : {})[helper];
return typeof helper !== "function" ? helper : function() {
return helper.apply(view, arguments);
};
}
//=================
// jsviews.convert
//=================
function convert(converter, view, tmpl, text) {
var tmplConverters = tmpl.converters;
converter = tmplConverters && tmplConverters[converter] || converters[converter];
return converter ? converter.call(view, text) : text;
}
//=================
// jsviews.tag
//=================
function renderTag(tag, parentView, parentTmpl, converter, content, tagObject) {
// Called from within compiled template function, to render a nested tag
// Returns the rendered tag
var ret,
tmplTags = parentTmpl.tags,
nestedTemplates = parentTmpl.templates,
tmpl = tagObject.props && tagObject.props.tmpl,
args = arguments,
tagFn = tmplTags && tmplTags[tag] || tags[tag];
if (!tagFn) {
return "";
}
// Set the tmpl property to the content of the block tag, unless set as an override property on the tag
content = content && parentTmpl.tmpls[content - 1];
tmpl = tmpl || content || undefined;
tagObject.tmpl =
"" + tmpl === tmpl // if a string
? nestedTemplates && nestedTemplates[tmpl] || templates[tmpl] || templates(tmpl)
: tmpl;
tagObject.isTag = TRUE;
tagObject.converter = converter;
tagObject.view = parentView;
tagObject.renderContent = renderContent;
ret = tagFn.apply(tagObject, args.length > 6 ? slice.call(args, 6) : []);
return ret || (ret == undefined ? "" : ret.toString()); // (If ret is the value 0 or false, will render to string)
}
//=================
// View constructor
//=================
function View(context, path, parentView, data, template, key, onRender, isArray) {
// Constructor for view object in view hierarchy. (Augmented by JsViews if JsViews is loaded)
var views,
self = {
tmpl: template,
path: path,
parent: parentView,
data: data,
ctx: context,
// If the data is an array, this is an 'Array View' with a views array for each child 'Instance View'
// If the data is not an array, this is an 'Instance View' with a views 'map' object for any child nested views
views: isArray ? [] : {},
isArray: isArray, // is an 'Array View' owning a data array, with child views for each item
_hlp: getHelper,
_onRender: onRender
};
if (parentView) {
views = parentView.views;
if (parentView.isArray) {
// Parent is an 'Array View'. Add this view to its views array
views.splice(
// self.key = self.key - the index in the parent view array
self.key = self.index = key !== undefined
? key
: views.length,
0, self);
} else {
// Parent is an 'Instance View'. Add this view to its views object
// self.key = is the key in the parent view map
views[self.key = "_" + autoViewKey++] = self;
// self.index = is index of the parent
self.index = parentView.index;
}
}
return self;
}
//=================
// Registration
//=================
function addToStore(self, store, name, item, process) {
// Add item to named store such as templates, helpers, converters...
var key, onStore;
if (name && typeof name === "object" && !name.nodeType) {
// If name is a map, iterate over map and call store for key
for (key in name) {
store(key, name[key]);
}
return self;
}
if (!name || item === undefined) {
if (process) {
item = process(undefined, item || name);
}
} else if ("" + name === name) { // name must be a string
if (item === null) {
// If item is null, delete this entry
delete store[name];
} else if (item = process ? process(name, item) : item) {
store[name] = item;
}
}
if (onStore = sub.onStoreItem) {
// e.g. JsViews integration
onStore(store, name, item, process);
}
return item;
}
function templates(name, tmpl) {
// Register templates
// Setter: Use $.view.tags( name, tagFn ) or $.view.tags({ name: tagFn, ... }) to add additional tags to the registered tags collection.
// Getter: Use var tagFn = $.views.tags( name ) or $.views.tags[name] or $.views.tags.name to return the function for the registered tag.
// Remove: Use $.view.tags( name, null ) to remove a registered tag from $.view.tags.
// When registering for {{foo a b c==d e=f}}, tagFn should be a function with the signature:
// function(a,b). The 'this' pointer will be a hash with properties c and e.
return addToStore(this, templates, name, tmpl, compile);
}
function tags(name, tagFn) {
// Register template tags
// Setter: Use $.view.tags( name, tagFn ) or $.view.tags({ name: tagFn, ... }) to add additional tags to the registered tags collection.
// Getter: Use var tagFn = $.views.tags( name ) or $.views.tags[name] or $.views.tags.name to return the function for the registered tag.
// Remove: Use $.view.tags( name, null ) to remove a registered tag from $.view.tags.
// When registering for {{foo a b c==d e=f}}, tagFn should be a function with the signature:
// function(a,b). The 'this' pointer will be a hash with properties c and e.
return addToStore(this, tags, name, tagFn);
}
function helpers(name, helperFn) {
// Register helper functions for use in templates (or in data-link expressions if JsViews is loaded)
// Setter: Use $.view.helpers( name, helperFn ) or $.view.helpers({ name: helperFn, ... }) to add additional helpers to the registered helpers collection.
// Getter: Use var helperFn = $.views.helpers( name ) or $.views.helpers[name] or $.views.helpers.name to return the function.
// Remove: Use $.view.helpers( name, null ) to remove a registered helper function from $.view.helpers.
// Within a template, access the helper using the syntax: {{... ~myHelper(...) ...}}.
return addToStore(this, helpers, name, helperFn);
}
function converters(name, converterFn) {
// Register converter functions for use in templates (or in data-link expressions if JsViews is loaded)
// Setter: Use $.view.converters( name, converterFn ) or $.view.converters({ name: converterFn, ... }) to add additional converters to the registered converters collection.
// Getter: Use var converterFn = $.views.converters( name ) or $.views.converters[name] or $.views.converters.name to return the converter function.
// Remove: Use $.view.converters( name, null ) to remove a registered converter from $.view.converters.
// Within a template, access the converter using the syntax: {{myConverter:...}}.
return addToStore(this, converters, name, converterFn);
}
//=================
// renderContent
//=================
function renderContent(data, context, path, key, parentView, onRender) {
// Render template against data as a tree of subviews (nested template), or as a string (top-level template).
// tagName parameter for internal use only. Used for rendering templates registered as tags (which may have associated presenter objects)
var i, l, dataItem, newView, itemWrap, itemsWrap, itemResult, parentContext, tmpl, onRender, props, swapContent, isLayout,
self = this,
result = "";
if (key === TRUE) {
swapContent = TRUE;
key = 0;
}
if (self.isTag) {
// This is a call from renderTag
tmpl = self.tmpl;
if (self.props && self.ctx) {
extend(self.ctx, self.props);
}
if (self.ctx && context) {
context = extend(self.ctx, context);
}
context = self.ctx || context;
parentView = parentView || self.view;
path = path || self.path;
key = key || self.key;
props = self.props;
} else {
tmpl = self.jquery && self[0] // This is a call from $(selector).render
|| self; // This is a call from tmpl.render
}
if (tmpl) {
if (parentView) {
parentContext = parentView.ctx;
if (data === parentView) {
// Inherit the data from the parent view.
// This may be the contents of an {{if}} block
// Set isLayout = true so we don't iterate the if block if the data is an array.
data = parentView.data;
isLayout = TRUE;
}
onRender = onRender || parentView._onRender;
} else {
parentContext = jsv.helpers;
}
// Set additional context on views created here, (as modified context inherited from the parent, and to be inherited by child views)
// Note: If no jQuery, extend does not support chained copies - so limit extend() to two parameters
// TODO could make this a reusable helper for merging context.
context = (context && context !== parentContext)
? extend(extend({}, parentContext), context)
: parentContext;
if (!tmpl.fn) {
tmpl = templates[tmpl] || templates(tmpl);
}
if (tmpl) {
if ($.isArray(data) && !isLayout) {
// Create a view for the array, whose child views correspond to each data item.
// (Note: if key and parentView are passed in along with parent view, treat as
// insert -e.g. from view.addViews - so parentView is already the view item for array)
newView = swapContent ? parentView : (key !== undefined && parentView) || View(context, path, parentView, data, tmpl, key, onRender, TRUE);
for (i = 0, l = data.length; i < l; i++) {
// Create a view for each data item.
dataItem = data[i];
itemResult = tmpl.fn(dataItem, View(context, path, newView, dataItem, tmpl, (key || 0) + i, onRender), jsv);
result += onRender ? onRender(itemResult, tmpl, props) : itemResult;
}
} else {
// Create a view for singleton data object.
newView = swapContent ? parentView : View(context, path, parentView, data, tmpl, key, onRender);
newView._onRender = onRender;
result += tmpl.fn(data, newView, jsv);
}
return onRender ? onRender(result, tmpl, props, newView.key, path) : result;
}
}
return ""; // No tmpl. Could throw...
}
//===========================
// Build and compile template
//===========================
// Generate a reusable function that will serve to render a template against data
// (Compile AST then build template function)
function syntaxError(message, e) {
throw (e ? (e.name + ': "' + e.message + '"') : "Syntax error") + (message ? (" \n" + message) : "");
}
function tmplFn(markup, tmpl, bind) {
// Compile markup to AST (abtract syntax tree) then build the template function code from the AST nodes
// Used for compiling templates, and also by JsViews to build functions for data link expressions
var newNode, node, i, l, code, hasTag, hasEncoder, getsValue, hasConverter, hasViewPath, tag, converter, params, hash, nestedTmpl, allowCode,
tmplOptions = tmpl ? {
allowCode: allowCode = tmpl.allowCode,
debug: tmpl.debug
} : {},
nested = tmpl && tmpl.tmpls,
astTop = [],
loc = 0,
stack = [],
content = astTop,
current = [, , , astTop],
nestedIndex = 0;
//==== nested functions ====
function pushPreceedingContent(shift) {
shift -= loc;
if (shift) {
content.push(markup.substr(loc, shift).replace(rNewLine, "\\n"));
}
}
function parseTag(all, tagName, converter, colon, html, code, params, slash, closeBlock, index) {
// tag converter colon html code params slash closeBlock
// /{{(?:(?:(\w+(?=[\/!\s\}!]))|(?:(\w+)?(:)|(?:(>)|(\*)))((?:[^\}]|}(?!}))*?)(\/)?|(?:\/(\w+)))}}/g;
// Build abstract syntax tree (AST): [ tagName, converter, params, content, hash, contentMarkup ]
if (html) {
colon = ":";
converter = "html";
}
var hash = "",
passedCtx = "",
// Block tag if not self-closing and not {{:}} or {{>}} (special case) and not a data-link expression (has bind parameter)
block = !slash && !colon && !bind;
//==== nested helper function ====
tagName = tagName || colon;
pushPreceedingContent(index);
loc = index + all.length; // location marker - parsed up to here
if (code) {
if (allowCode) {
content.push(["*", params.replace(rUnescapeQuotes, "$1")]);
}
} else if (tagName) {
if (tagName === "else") {
current[5] = markup.substring(current[5], index); // contentMarkup for block tag
current = stack.pop();
content = current[3];
block = TRUE;
}
params = (params
? parseParams(params, bind)
.replace(rBuildHash, function(all, isCtx, keyValue) {
if (isCtx) {
passedCtx += keyValue + ",";
} else {
hash += keyValue + ",";
}
return "";
})
: "");
hash = hash.slice(0, -1);
params = params.slice(0, -1);
newNode = [
tagName,
converter || "",
params,
block && [],
"{" + (hash ? ("props:{" + hash + "},") : "") + "path:'" + params + "'" + (passedCtx ? ",ctx:{" + passedCtx.slice(0, -1) + "}" : "") + "}"
];
if (block) {
stack.push(current);
current = newNode;
current[5] = loc; // Store current location of open tag, to be able to add contentMarkup when we reach closing tag
}
content.push(newNode);
} else if (closeBlock) {
//if ( closeBlock !== current[ 0 ]) {
// throw "unmatched close tag: /" + closeBlock + ". Expected /" + current[ 0 ];
//}
current[5] = markup.substring(current[5], index); // contentMarkup for block tag
current = stack.pop();
}
if (!current) {
throw "Expected block tag";
}
content = current[3];
}
//==== /end of nested functions ====
markup = markup.replace(rEscapeQuotes, "\\$1");
// Build the AST (abstract syntax tree) under astTop
markup.replace(rTag, parseTag);
pushPreceedingContent(markup.length);
// Use the AST (astTop) to build the template function
l = astTop.length;
code = (l ? "" : '"";');
for (i = 0; i < l; i++) {
// AST nodes: [ tagName, converter, params, content, hash, contentMarkup ]
node = astTop[i];
if ("" + node === node) { // type string
code += '"' + node + '"+';
} else if (node[0] === "*") {
code = code.slice(0, i ? -1 : -3) + ";" + node[1] + (i + 1 < l ? "ret+=" : "");
} else {
tag = node[0];
converter = node[1];
params = node[2];
content = node[3];
hash = node[4];
markup = node[5];
if (content) {
// Create template object for nested template
nestedTmpl = TmplObject(markup, tmplOptions, tmpl, nestedIndex++);
// Compile to AST and then to compiled function
tmplFn(markup, nestedTmpl);
nested.push(nestedTmpl);
}
hasViewPath = hasViewPath || hash.indexOf("view") > -1;
code += (tag === ":"
? (converter === "html"
? (hasEncoder = TRUE, "e(" + params)
: converter
? (hasConverter = TRUE, 'c("' + converter + '",view,this,' + params)
: (getsValue = TRUE, "((v=" + params + ')!=u?v:""')
)
: (hasTag = TRUE, 't("' + tag + '",view,this,"' + (converter || "") + '",'
+ (content ? nested.length : '""') // For block tags, pass in the key (nested.length) to the nested content template
+ "," + hash + (params ? "," : "") + params))
+ ")+";
}
}
code = fnDeclStr
+ (getsValue ? "v," : "")
+ (hasTag ? "t=j._tag," : "")
+ (hasConverter ? "c=j._convert," : "")
+ (hasEncoder ? "e=j.converters.html," : "")
+ "ret; try{\n\n"
+ (tmplOptions.debug ? "debugger;" : "")
+ (allowCode ? 'ret=' : 'return ')
+ code.slice(0, -1) + ";\n\n"
+ (allowCode ? "return ret;" : "")
+ "}catch(e){return j._err(e);}";
try {
code = new Function("data, view, j, b, u", code);
} catch (e) {
syntaxError("Error in compiled template code:\n" + code, e);
}
// Include only the var references that are needed in the code
if (tmpl) {
tmpl.fn = code;
}
return code;
}
function parseParams(params, bind) {
var named,
fnCall = {},
parenDepth = 0,
quoted = FALSE, // boolean for string content in double quotes
aposed = FALSE; // or in single quotes
function parseTokens(all, lftPrn0, lftPrn, path, operator, err, eq, path2, prn, comma, lftPrn2, apos, quot, rtPrn, prn2, space) {
// rParams = /(?:([([])\s*)?(?:([#~]?[\w$.]+)?\s*((\+\+|--)|\+|-|&&|\|\||===|!==|==|!=|<=|>=|[<>%*!:?\/]|(=))\s*|([#~]?[\w$.^]+)([([])?)|(,\s*)|(\(?)\\?(?:(')|("))|(?:\s*([)\]])([([]?))|(\s+)/g,
// lftPrn path operator err eq path2 prn comma lftPrn3 apos quot rtPrn prn2 space
// (left paren? followed by (path? followed by operator) or (path followed by paren?)) or comma or apos or quot or right paren or space
operator = operator || "";
lftPrn = lftPrn || lftPrn0 || lftPrn2;
path = path || path2;
prn = prn || prn2 || "";
operator = operator || "";
var bindParam = bind && prn !== "(";
function parsePath(all, object, helper, view, viewProperty, pathTokens, leafToken) {
// rPath = /^(?:null|true|false|\d[\d.]*|([\w$]+|~([\w$]+)|#(view|([\w$]+))?)([\w$.]*?)(?:[.[]([\w$]+)\]?)?|(['"]).*\8)$/g,
// object helper view viewProperty pathTokens leafToken string
if (object) {
var leaf,
ret = (helper
? 'view._hlp("' + helper + '")'
: view
? "view"
: "data")
+ (leafToken
? (viewProperty
? "." + viewProperty
: helper
? ""
: (view ? "" : "." + object)
) + (pathTokens || "")
: (leafToken = helper ? "" : view ? viewProperty || "" : object, ""));
leaf = (leafToken ? "." + leafToken : "")
if (!bindParam) {
ret = ret + leaf;
}
ret = ret.slice(0, 9) === "view.data"
? ret.slice(5) // convert #view.data... to data...
: ret;
if (bindParam) {
ret = "b(" + ret + ',"' + leafToken + '")' + leaf;
}
return ret;
}
return all;
}
if (err) {
syntaxError();
} else {
return (aposed
// within single-quoted string
? (aposed = !apos, (aposed ? all : '"'))
: quoted
// within double-quoted string
? (quoted = !quot, (quoted ? all : '"'))
:
(
(lftPrn
? (parenDepth++, lftPrn)
: "")
+ (space
? (parenDepth
? ""
: named
? (named = FALSE, "\b")
: ","
)
: eq
// named param
? (parenDepth && syntaxError(), named = TRUE, '\b' + path + ':')
: path
// path
? (path.replace(rPath, parsePath)
+ (prn
? (fnCall[++parenDepth] = TRUE, prn)
: operator)
)
: operator
? operator
: rtPrn
// function
? ((fnCall[parenDepth--] = FALSE, rtPrn)
+ (prn
? (fnCall[++parenDepth] = TRUE, prn)
: "")
)
: comma
? (fnCall[parenDepth] || syntaxError(), ",") // We don't allow top-level literal arrays or objects
: lftPrn0
? ""
: (aposed = apos, quoted = quot, '"')
))
);
}
}
params = (params + " ").replace(rParams, parseTokens);
return params;
}
function compile(name, tmpl, parent, options) {
// tmpl is either a template object, a selector for a template script block, the name of a compiled template, or a template object
// options is the set of template properties, c
var tmplOrMarkup, elem, key, nested, nestedItem;
//==== nested functions ====
function tmplOrMarkupFromStr(value) {
// If value is of type string - treat as selector, or name of compiled template
// Return the template object, if already compiled, or the markup string
if (("" + value === value) || value.nodeType > 0) {
try {
elem = value.nodeType > 0
? value
: !rTmplString.test(value)
// If value is a string and does not contain HTML or tag content, then test as selector
&& jQuery && jQuery(value)[0];
// If selector is valid and returns at least one element, get first element
// If invalid, jQuery will throw. We will stay with the original string.
} catch (e) { }
if (elem) {
if (!elem.type) {
// If elem is not a script element, return undefined
return;
}
// It is a script element
// Create a name for data linking if none provided
value = templates[elem.getAttribute(tmplAttr)];
if (!value) {
// Not already compiled and cached, so compile and cache the name
name = name || "_" + autoTmplName++;
elem.setAttribute(tmplAttr, name);
value = compile(name, elem.innerHTML, parent, options); // Use tmpl as options
templates[name] = value;
}
}
return value;
}
// If value is not a string, return undefined
}
//==== Compile the template ====
tmpl = tmpl || "";
tmplOrMarkup = tmplOrMarkupFromStr(tmpl);
// If tmpl is a template object, use it for options
options = options || (tmpl.markup ? tmpl : {});
options.name = name;
nested = options.templates;
// If tmpl is not a markup string or a selector string, then it must be a template object
// In that case, get it from the markup property of the object
if (!tmplOrMarkup && tmpl.markup && (tmplOrMarkup = tmplOrMarkupFromStr(tmpl.markup))) {
if (tmplOrMarkup.fn && (tmplOrMarkup.debug !== tmpl.debug || tmplOrMarkup.allowCode !== tmpl.allowCode)) {
// if the string references a compiled template object, but the debug or allowCode props are different, need to recompile
tmplOrMarkup = tmplOrMarkup.markup;
}
}
if (tmplOrMarkup !== undefined) {
if (name && !parent) {
render[name] = function() {
return tmpl.render.apply(tmpl, arguments);
};
}
if (tmplOrMarkup.fn || tmpl.fn) {
// tmpl is already compiled, so use it, or if different name is provided, clone it
if (tmplOrMarkup.fn) {
if (name && name !== tmplOrMarkup.name) {
tmpl = extend(extend({}, tmplOrMarkup), options);
} else {
tmpl = tmplOrMarkup;
}
}
} else {
// tmplOrMarkup is a markup string, not a compiled template
// Create template object
tmpl = TmplObject(tmplOrMarkup, options, parent, 0);
// Compile to AST and then to compiled function
tmplFn(tmplOrMarkup, tmpl);
}
for (key in nested) {
// compile nested template declarations
nestedItem = nested[key];
if (nestedItem.name !== key) {
nested[key] = compile(key, nestedItem, tmpl);
}
}
return tmpl;
}
}
//==== /end of function compile ====
function TmplObject(markup, options, parent, key) {
// Template object constructor
// nested helper function
function extendStore(storeName) {
if (parent[storeName]) {
// Include parent items except if overridden by item of same name in options
tmpl[storeName] = extend(extend({}, parent[storeName]), options[storeName]);
}
}
options = options || {};
var tmpl = {
markup: markup,
tmpls: [],
links: [],
render: renderContent
};
if (parent) {
if (parent.templates) {
tmpl.templates = extend(extend({}, parent.templates), options.templates);
}
tmpl.parent = parent;
tmpl.name = parent.name + "[" + key + "]";
tmpl.key = key;
}
extend(tmpl, options);
if (parent) {
extendStore("templates");
extendStore("tags");
extendStore("helpers");
extendStore("converters");
}
return tmpl;
}
//========================== Initialize ==========================
if (jQuery) {
////////////////////////////////////////////////////////////////////////////////////////////////
// jQuery is loaded, so make $ the jQuery object
$ = jQuery;
$.templates = templates;
$.render = render;
$.views = jsv;
$.fn.render = renderContent;
} else {
////////////////////////////////////////////////////////////////////////////////////////////////
// jQuery is not loaded.
$ = global.jsviews = jsv;
$.extend = function(target, source) {
var name;
target = target || {};
for (name in source) {
target[name] = source[name];
}
return target;
};
$.isArray = Array && Array.isArray || function(obj) {
return Object.prototype.toString.call(obj) === "[object Array]";
};
}
extend = $.extend;
function replacerForHtml(ch) {
// Original code from Mike Samuel <msamuel@google.com>
return escapeMapForHtml[ch]
// Intentional assignment that caches the result of encoding ch.
|| (escapeMapForHtml[ch] = "&#" + ch.charCodeAt(0) + ";");
}
//========================== Register tags ==========================
tags({
"if": function() {
var ifTag = this,
view = ifTag.view;
view.onElse = function(tagObject, args) {
var i = 0,
l = args.length;
while (l && !args[i++]) {
// Only render content if args.length === 0 (i.e. this is an else with no condition) or if a condition argument is truey
if (i === l) {
return "";
}
}
view.onElse = undefined; // If condition satisfied, so won't run 'else'.
tagObject.path = "";
return tagObject.renderContent(view);
// Test is satisfied, so render content, while remaining in current data context
// By passing the view, we inherit data context from the parent view, and the content is treated as a layout template
// (so if the data is an array, it will not iterate over the data
};
return view.onElse(this, arguments);
},
"else": function() {
var view = this.view;
return view.onElse ? view.onElse(this, arguments) : "";
},
"for": function() {
var i,
self = this,
result = "",
args = arguments,
l = args.length;
if (l === 0) {
// If no parameters, render once, with #data undefined
l = 1;
}
for (i = 0; i < l; i++) {
result += self.renderContent(args[i]);
}
return result;
},
"*": function(value) {
return value;
}
});
//========================== Register global helpers ==========================
// helpers({ // Global helper functions
// // TODO add any useful built-in helper functions
// });
//========================== Register converters ==========================
converters({
html: function(text) {
// HTML encoding helper: Replace < > & and ' and " by corresponding entities.
// inspired by Mike Samuel <msamuel@google.com>
return text != undefined ? String(text).replace(htmlSpecialChar, replacerForHtml) : "";
}
});
//========================== Define default delimiters ==========================
setDelimiters();
})(this);
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