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wings.js
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wings.js
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!(function(wings) {
var escapeXML, isArray, parse_re, renderRawTemplate, replaceBraces, restoreBraces, _ref;
wings.strict = false;
wings.renderTemplate = function(template, data, links) {
template = replaceBraces(template);
template = renderRawTemplate(template, data, links);
template = restoreBraces(template);
return template;
};
replaceBraces = function(template) {
return template.replace(/\{\{/g, '\ufe5b').replace(/\}\}/g, '\ufe5d');
};
restoreBraces = function(template) {
return template.replace(/\ufe5b/g, '{').replace(/\ufe5d/g, '}');
};
isArray = (_ref = Array.isArray) != null ? _ref : (function(o) {
return Object.prototype.toString.call(o) === '[object Array]';
});
escapeXML = function(s) {
return s.toString().replace(/&(?!\w+;)|["<>]/g, function(s) {
switch (s) {
case '&':
return '&';
case '"':
return '\"';
case '<':
return '<';
case '>':
return '>';
default:
return s;
}
});
};
parse_re = /\s*\{([:!])\s*([^}]*?)\s*\}([\S\s]+?)\s*\{\/\s*\2\s*\}|\{(\#)\s*[\S\s]+?\s*\#\}|\{([@&]?)\s*([^}]*?)\s*\}/mg;
return renderRawTemplate = function(template, data, links) {
return template.replace(parse_re, function(all, section_op, section_name, section_content, comment_op, tag_op, tag_name) {
var content, i, link, name, op, part, parts, rest, v, value, _len, _ref2;
op = section_op || comment_op || tag_op;
name = section_name || tag_name;
content = section_content;
switch (op) {
case ':':
value = data[name];
if (!(value != null)) {
if (wings.strict) {
throw "Invalid section: " + (JSON.stringify(data)) + ": " + name;
} else {
return "";
}
} else if (isArray(value)) {
parts = [];
for (i = 0, _len = value.length; i < _len; i++) {
v = value[i];
v['#'] = i;
parts.push(renderRawTemplate(content, v, links));
}
return parts.join('');
} else if (typeof value === 'object') {
return renderRawTemplate(content, value, links);
} else if (typeof value === 'function') {
return value.call(data, content);
} else if (value) {
return renderRawTemplate(content, data, links);
} else {
return "";
}
break;
case '!':
case '?!':
value = data[name];
if (!(value != null)) {
if (wings.strict) {
throw "Invalid inverted section: " + (JSON.stringify(data)) + ": " + name;
} else {
return "";
}
} else if (!value || (isArray(value) && value.length === 0)) {
return renderRawTemplate(content, data, links);
} else {
return "";
}
break;
case '#':
return '';
case '@':
link = links ? links[name] : null;
if (!(link != null)) {
if (wings.strict) {
throw "Invalid link: " + (JSON.stringify(links)) + ": " + name;
} else {
return "";
}
} else if (typeof link === 'function') {
link = link.call(data);
}
return renderRawTemplate(replaceBraces(link), data, links);
case '&':
case '':
value = data;
rest = name;
while (value && rest) {
_ref2 = rest.match(/^([^.]*)\.?(.*)$/), all = _ref2[0], part = _ref2[1], rest = _ref2[2];
value = value[part];
}
if (!(value != null)) {
if (wings.strict) {
throw "Invalid value: " + (JSON.stringify(data)) + ": " + name;
} else {
return "";
}
} else if (typeof value === 'function') {
value = value.call(data);
}
if (op === '&') {
return value;
} else {
return escapeXML(value);
}
default:
throw "Invalid section op: " + op;
}
});
};
})(typeof exports !== "undefined" && exports !== null ? exports : (this['wings'] = {}));