package Template::Swig;
use strict;
use warnings;
use Carp;
our $VERSION = '0.05';
use File::Slurp qw(read_file);
use JavaScript::V8;
use JSON::XS;
sub new {
my ($class, %params) = @_;
my $self = bless {}, $class;
$self->{context} = JavaScript::V8::Context->new();
$self->{json} = JSON::XS->new->allow_nonref;
$self->{json}->canonical(1); # Make sure that a given struct is always encoded the same way
$self->{extends_callback} = $params{extends_callback};
$self->{template_dir} = $params{template_dir};
$self->{template_names} = {};
$self->_load_swig;
return $self;
}
sub _load_swig {
my ($self) = @_;
if ( my $cb = $self->{extends_callback} ) {
$self->{context}->eval(<<EOT);
var fs = {
readFileSync: function(file, encoding){
return perl_callback(file, encoding);
}
};
EOT
$self->{context}->bind('perl_callback' => sub {
my ($filename, $encoding) = @_;
my $template;
my $error = do {
local $@;
eval {
$filename = join('/',$self->{template_dir}, $filename) if $self->{template_dir};
$template = $cb->($filename, $encoding);
};
$@;
};
carp $error if $error;
return $template;
});
}
local $/ = undef;
my $swig_source = <DATA>;
$self->{context}->eval($swig_source);
confess $@ if $@;
}
sub compileFromFile {
my ($self, $f) = @_;
my $filename = ref($f) ? $f->{filename} : $f;
$filename = join('/',$self->{template_dir}, $filename) if $self->{template_dir};
if ( -e $filename ) {
my $template = read_file($filename);
$self->compile($f, $template);
} else {
die "Unable to locate $filename";
}
}
sub compile {
my ($self, $template_name, $template_string) = @_;
die "need a template_string" unless $template_string;
my $template_string_json = $self->{json}->encode($template_string);
die "need a template_name" unless $template_name;
my $template_name_json = $self->{json}->encode($template_name);
if (ref $template_name) {
$template_name_json =~ s/'/\\'/g;
$template_name_json = "'$template_name_json'";
}
$self->{context}->eval(<<EOT);
var template_string = $template_string_json;
var template = swig.compile(template_string, { filename: $template_name_json });
templates[$template_name_json] = template;
false;
EOT
confess $@ if $@;
$self->{is_compiled}{$template_name_json} = 1;
}
sub render {
my ($self, $template_name, $data) = @_;
die "need a template_name" unless $template_name;
my $template_name_json = $self->{json}->encode($template_name);
if (ref $template_name) {
$template_name_json =~ s/'/\\'/g;
$template_name_json = "'$template_name_json'";
}
die "couldn't find template: $template_name" unless $self->{is_compiled}{$template_name_json};
my $data_json = $self->{json}->encode($data);
my $output = $self->{context}->eval(<<EOT);
var output = templates[$template_name_json]($data_json);
output;
EOT
confess $@ if $@;
return $output;
}
1;
=pod
=head1 NAME
Template::Swig - Perl interface to Django-inspired Swig templating engine.
=head1 SYNOPSIS
my $swig = Template::Swig->new;
# Compile and render an inline template:
$swig->compile('message', 'Welcome, {{name}}');
my $output = $swig->render('message', { name => 'Arthur' });
# Compile and render a file:
$swig->compileFromFile('path/to/file.html');
my $output = $swig->render('path/to/file.html', { some_param => 'foo' });
=head1 DESCRIPTION
Template::Swig uses L<JavaScript::V8> and L<Paul Armstrong's Swig|https://github.com/paularmstrong/swig/> templating engine to provide fast Django-inspired templating in a Perl context. Templates are compiled to JavaScript functions and stored in memory, then executed each time they're rendered.
Swig's feature list includes multiple inheritance, formatter and helper functions, macros, auto-escaping, and custom tags. See the L<Swig Documentation|https://github.com/paularmstrong/swig/blob/master/README.md> for more.
=head1 METHODS
=head2 new( template_dir => $path, extends_callback => sub { } )
Initialize a swig instance, given the following parameters
=head3 template_dir
Optional path where templates live
=head3 extends_callback
Optional callback to be run when Swig encounters an extends tag; receives filename and its encoding as parameters
=head2 compile($template_name, $swig_source)
Compile a template given, given a template name and swig template source as a string.
=head2 compileFromFile($f)
Will compile a file from the filesystem. C<$f> may be either a scalar filename,
or a reference to a hash with at least one key, C<filename>.
=head2 compile($string)
Will compile data supplied in the scalar C<$string>.
=head2 render($template_name, $data)
Render a template, given a name and a reference to a hash of data to interpolate.
=head1 TEMPLATE EXAMPLES
Iterate through a list:
{% for image in images %}
<img src="{{ image.src }}" width="{{ image.width }}" height="{{ image.height }}">
{% else %}
<div class="message">No images to show</div>
{% endfor %}
Custom helpers / filters:
{{ created|date('r') }}
=head3 Inheritance:
In main.html:
{% block 'greeting' %}
Hi, there.
{% endblock %}
In custom.html:
{% extends 'main.html' %}
{% block 'greeting' %}
Welcome, {{ name }}
{% endblock %}
=head1 SEE ALSO
L<Dotiac::DTL>, L<Text::Caml>, L<Template::Toolkit>
=head1 COPYRIGHT AND LICENSE
Copyright (c) 2012, David Chester
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
=cut
__DATA__
var templates = {};
/*! Swig https://paularmstrong.github.com/swig | https://github.com/paularmstrong/swig/blob/master/LICENSE */
/*! Cross-Browser Split 1.0.1 (c) Steven Levithan <stevenlevithan.com>; MIT License An ECMA-compliant, uniform cross-browser split method */
/*! Underscore.js (c) 2011 Jeremy Ashkenas | https://github.com/documentcloud/underscore/blob/master/LICENSE */
/*! DateZ (c) 2011 Tomo Universalis | https://github.com/TomoUniversalis/DateZ/blob/master/LISENCE */(function () {
var str = '{{ a }}',
splitter;
if (str.split(/(\{\{.*?\}\})/).length === 0) {
/** Repurposed from Steven Levithan's
* Cross-Browser Split 1.0.1 (c) Steven Levithan <stevenlevithan.com>; MIT License An ECMA-compliant, uniform cross-browser split method
*/
splitter = function (str, separator, limit) {
if (Object.prototype.toString.call(separator) !== '[object RegExp]') {
return splitter._nativeSplit.call(str, separator, limit);
}
var output = [],
lastLastIndex = 0,
flags = (separator.ignoreCase ? 'i' : '') + (separator.multiline ? 'm' : '') + (separator.sticky ? 'y' : ''),
separator2,
match,
lastIndex,
lastLength;
separator = RegExp(separator.source, flags + 'g');
str = str.toString();
if (!splitter._compliantExecNpcg) {
separator2 = RegExp('^' + separator.source + '$(?!\\s)', flags);
}
if (limit === undefined || limit < 0) {
limit = Infinity;
} else {
limit = Math.floor(+limit);
if (!limit) {
return [];
}
}
function fixExec() {
var i = 1;
for (i; i < arguments.length - 2; i += 1) {
if (arguments[i] === undefined) {
match[i] = undefined;
}
}
}
match = separator.exec(str);
while (match) {
lastIndex = match.index + match[0].length;
if (lastIndex > lastLastIndex) {
output.push(str.slice(lastLastIndex, match.index));
if (!splitter._compliantExecNpcg && match.length > 1) {
match[0].replace(separator2, fixExec);
}
if (match.length > 1 && match.index < str.length) {
Array.prototype.push.apply(output, match.slice(1));
}
lastLength = match[0].length;
lastLastIndex = lastIndex;
if (output.length >= limit) {
break;
}
}
if (separator.lastIndex === match.index) {
separator.lastIndex += 1; // avoid an infinite loop
}
match = separator.exec(str);
}
if (lastLastIndex === str.length) {
if (lastLength || !separator.test('')) {
output.push('');
}
} else {
output.push(str.slice(lastLastIndex));
}
return output.length > limit ? output.slice(0, limit) : output;
};
splitter._compliantExecNpcg = /()??/.exec('')[1] === undefined;
splitter._nativeSplit = String.prototype.split;
String.prototype.split = function (separator, limit) {
return splitter(this, separator, limit);
};
}
}());
swig = (function () {
var swig = {},
dateformat = {},
filters = {},
helpers = {},
parser = {},
tags = {};
// Underscore.js 1.4.2
// http://underscorejs.org
// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
// Underscore may be freely distributed under the MIT license.
(function() {
// Baseline setup
// --------------
// Establish the root object, `window` in the browser, or `global` on the server.
var root = this;
// Save the previous value of the `_` variable.
var previousUnderscore = root._;
// Establish the object that gets returned to break out of a loop iteration.
var breaker = {};
// Save bytes in the minified (but not gzipped) version:
var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
// Create quick reference variables for speed access to core prototypes.
var push = ArrayProto.push,
slice = ArrayProto.slice,
concat = ArrayProto.concat,
unshift = ArrayProto.unshift,
toString = ObjProto.toString,
hasOwnProperty = ObjProto.hasOwnProperty;
// All **ECMAScript 5** native function implementations that we hope to use
// are declared here.
var
nativeForEach = ArrayProto.forEach,
nativeMap = ArrayProto.map,
nativeReduce = ArrayProto.reduce,
nativeReduceRight = ArrayProto.reduceRight,
nativeFilter = ArrayProto.filter,
nativeEvery = ArrayProto.every,
nativeSome = ArrayProto.some,
nativeIndexOf = ArrayProto.indexOf,
nativeLastIndexOf = ArrayProto.lastIndexOf,
nativeIsArray = Array.isArray,
nativeKeys = Object.keys,
nativeBind = FuncProto.bind;
// Create a safe reference to the Underscore object for use below.
var _ = function(obj) {
if (obj instanceof _) return obj;
if (!(this instanceof _)) return new _(obj);
this._wrapped = obj;
};
// Export the Underscore object for **Node.js**, with
// backwards-compatibility for the old `require()` API. If we're in
// the browser, add `_` as a global object via a string identifier,
// for Closure Compiler "advanced" mode.
if (typeof exports !== 'undefined') {
if (typeof module !== 'undefined' && module.exports) {
exports = module.exports = _;
}
exports._ = _;
} else {
root['_'] = _;
}
// Current version.
_.VERSION = '1.4.2';
// Collection Functions
// --------------------
// The cornerstone, an `each` implementation, aka `forEach`.
// Handles objects with the built-in `forEach`, arrays, and raw objects.
// Delegates to **ECMAScript 5**'s native `forEach` if available.
var each = _.each = _.forEach = function(obj, iterator, context) {
if (obj == null) return;
if (nativeForEach && obj.forEach === nativeForEach) {
obj.forEach(iterator, context);
} else if (obj.length === +obj.length) {
for (var i = 0, l = obj.length; i < l; i++) {
if (iterator.call(context, obj[i], i, obj) === breaker) return;
}
} else {
for (var key in obj) {
if (_.has(obj, key)) {
if (iterator.call(context, obj[key], key, obj) === breaker) return;
}
}
}
};
// Return the results of applying the iterator to each element.
// Delegates to **ECMAScript 5**'s native `map` if available.
_.map = _.collect = function(obj, iterator, context) {
var results = [];
if (obj == null) return results;
if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
each(obj, function(value, index, list) {
results[results.length] = iterator.call(context, value, index, list);
});
return results;
};
// **Reduce** builds up a single result from a list of values, aka `inject`,
// or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
_.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
var initial = arguments.length > 2;
if (obj == null) obj = [];
if (nativeReduce && obj.reduce === nativeReduce) {
if (context) iterator = _.bind(iterator, context);
return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
}
each(obj, function(value, index, list) {
if (!initial) {
memo = value;
initial = true;
} else {
memo = iterator.call(context, memo, value, index, list);
}
});
if (!initial) throw new TypeError('Reduce of empty array with no initial value');
return memo;
};
// The right-associative version of reduce, also known as `foldr`.
// Delegates to **ECMAScript 5**'s native `reduceRight` if available.
_.reduceRight = _.foldr = function(obj, iterator, memo, context) {
var initial = arguments.length > 2;
if (obj == null) obj = [];
if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
if (context) iterator = _.bind(iterator, context);
return arguments.length > 2 ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
}
var length = obj.length;
if (length !== +length) {
var keys = _.keys(obj);
length = keys.length;
}
each(obj, function(value, index, list) {
index = keys ? keys[--length] : --length;
if (!initial) {
memo = obj[index];
initial = true;
} else {
memo = iterator.call(context, memo, obj[index], index, list);
}
});
if (!initial) throw new TypeError('Reduce of empty array with no initial value');
return memo;
};
// Return the first value which passes a truth test. Aliased as `detect`.
_.find = _.detect = function(obj, iterator, context) {
var result;
any(obj, function(value, index, list) {
if (iterator.call(context, value, index, list)) {
result = value;
return true;
}
});
return result;
};
// Return all the elements that pass a truth test.
// Delegates to **ECMAScript 5**'s native `filter` if available.
// Aliased as `select`.
_.filter = _.select = function(obj, iterator, context) {
var results = [];
if (obj == null) return results;
if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
each(obj, function(value, index, list) {
if (iterator.call(context, value, index, list)) results[results.length] = value;
});
return results;
};
// Return all the elements for which a truth test fails.
_.reject = function(obj, iterator, context) {
var results = [];
if (obj == null) return results;
each(obj, function(value, index, list) {
if (!iterator.call(context, value, index, list)) results[results.length] = value;
});
return results;
};
// Determine whether all of the elements match a truth test.
// Delegates to **ECMAScript 5**'s native `every` if available.
// Aliased as `all`.
_.every = _.all = function(obj, iterator, context) {
iterator || (iterator = _.identity);
var result = true;
if (obj == null) return result;
if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
each(obj, function(value, index, list) {
if (!(result = result && iterator.call(context, value, index, list))) return breaker;
});
return !!result;
};
// Determine if at least one element in the object matches a truth test.
// Delegates to **ECMAScript 5**'s native `some` if available.
// Aliased as `any`.
var any = _.some = _.any = function(obj, iterator, context) {
iterator || (iterator = _.identity);
var result = false;
if (obj == null) return result;
if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
each(obj, function(value, index, list) {
if (result || (result = iterator.call(context, value, index, list))) return breaker;
});
return !!result;
};
// Determine if the array or object contains a given value (using `===`).
// Aliased as `include`.
_.contains = _.include = function(obj, target) {
var found = false;
if (obj == null) return found;
if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
found = any(obj, function(value) {
return value === target;
});
return found;
};
// Invoke a method (with arguments) on every item in a collection.
_.invoke = function(obj, method) {
var args = slice.call(arguments, 2);
return _.map(obj, function(value) {
return (_.isFunction(method) ? method : value[method]).apply(value, args);
});
};
// Convenience version of a common use case of `map`: fetching a property.
_.pluck = function(obj, key) {
return _.map(obj, function(value){ return value[key]; });
};
// Convenience version of a common use case of `filter`: selecting only objects
// with specific `key:value` pairs.
_.where = function(obj, attrs) {
if (_.isEmpty(attrs)) return [];
return _.filter(obj, function(value) {
for (var key in attrs) {
if (attrs[key] !== value[key]) return false;
}
return true;
});
};
// Return the maximum element or (element-based computation).
// Can't optimize arrays of integers longer than 65,535 elements.
// See: https://bugs.webkit.org/show_bug.cgi?id=80797
_.max = function(obj, iterator, context) {
if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
return Math.max.apply(Math, obj);
}
if (!iterator && _.isEmpty(obj)) return -Infinity;
var result = {computed : -Infinity};
each(obj, function(value, index, list) {
var computed = iterator ? iterator.call(context, value, index, list) : value;
computed >= result.computed && (result = {value : value, computed : computed});
});
return result.value;
};
// Return the minimum element (or element-based computation).
_.min = function(obj, iterator, context) {
if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
return Math.min.apply(Math, obj);
}
if (!iterator && _.isEmpty(obj)) return Infinity;
var result = {computed : Infinity};
each(obj, function(value, index, list) {
var computed = iterator ? iterator.call(context, value, index, list) : value;
computed < result.computed && (result = {value : value, computed : computed});
});
return result.value;
};
// Shuffle an array.
_.shuffle = function(obj) {
var rand;
var index = 0;
var shuffled = [];
each(obj, function(value) {
rand = _.random(index++);
shuffled[index - 1] = shuffled[rand];
shuffled[rand] = value;
});
return shuffled;
};
// An internal function to generate lookup iterators.
var lookupIterator = function(value) {
return _.isFunction(value) ? value : function(obj){ return obj[value]; };
};
// Sort the object's values by a criterion produced by an iterator.
_.sortBy = function(obj, value, context) {
var iterator = lookupIterator(value);
return _.pluck(_.map(obj, function(value, index, list) {
return {
value : value,
index : index,
criteria : iterator.call(context, value, index, list)
};
}).sort(function(left, right) {
var a = left.criteria;
var b = right.criteria;
if (a !== b) {
if (a > b || a === void 0) return 1;
if (a < b || b === void 0) return -1;
}
return left.index < right.index ? -1 : 1;
}), 'value');
};
// An internal function used for aggregate "group by" operations.
var group = function(obj, value, context, behavior) {
var result = {};
var iterator = lookupIterator(value);
each(obj, function(value, index) {
var key = iterator.call(context, value, index, obj);
behavior(result, key, value);
});
return result;
};
// Groups the object's values by a criterion. Pass either a string attribute
// to group by, or a function that returns the criterion.
_.groupBy = function(obj, value, context) {
return group(obj, value, context, function(result, key, value) {
(_.has(result, key) ? result[key] : (result[key] = [])).push(value);
});
};
// Counts instances of an object that group by a certain criterion. Pass
// either a string attribute to count by, or a function that returns the
// criterion.
_.countBy = function(obj, value, context) {
return group(obj, value, context, function(result, key, value) {
if (!_.has(result, key)) result[key] = 0;
result[key]++;
});
};
// Use a comparator function to figure out the smallest index at which
// an object should be inserted so as to maintain order. Uses binary search.
_.sortedIndex = function(array, obj, iterator, context) {
iterator = iterator == null ? _.identity : lookupIterator(iterator);
var value = iterator.call(context, obj);
var low = 0, high = array.length;
while (low < high) {
var mid = (low + high) >>> 1;
iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid;
}
return low;
};
// Safely convert anything iterable into a real, live array.
_.toArray = function(obj) {
if (!obj) return [];
if (obj.length === +obj.length) return slice.call(obj);
return _.values(obj);
};
// Return the number of elements in an object.
_.size = function(obj) {
if (obj == null) return 0;
return (obj.length === +obj.length) ? obj.length : _.keys(obj).length;
};
// Array Functions
// ---------------
// Get the first element of an array. Passing **n** will return the first N
// values in the array. Aliased as `head` and `take`. The **guard** check
// allows it to work with `_.map`.
_.first = _.head = _.take = function(array, n, guard) {
if (array == null) return void 0;
return (n != null) && !guard ? slice.call(array, 0, n) : array[0];
};
// Returns everything but the last entry of the array. Especially useful on
// the arguments object. Passing **n** will return all the values in
// the array, excluding the last N. The **guard** check allows it to work with
// `_.map`.
_.initial = function(array, n, guard) {
return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
};
// Get the last element of an array. Passing **n** will return the last N
// values in the array. The **guard** check allows it to work with `_.map`.
_.last = function(array, n, guard) {
if (array == null) return void 0;
if ((n != null) && !guard) {
return slice.call(array, Math.max(array.length - n, 0));
} else {
return array[array.length - 1];
}
};
// Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
// Especially useful on the arguments object. Passing an **n** will return
// the rest N values in the array. The **guard**
// check allows it to work with `_.map`.
_.rest = _.tail = _.drop = function(array, n, guard) {
return slice.call(array, (n == null) || guard ? 1 : n);
};
// Trim out all falsy values from an array.
_.compact = function(array) {
return _.filter(array, function(value){ return !!value; });
};
// Internal implementation of a recursive `flatten` function.
var flatten = function(input, shallow, output) {
each(input, function(value) {
if (_.isArray(value)) {
shallow ? push.apply(output, value) : flatten(value, shallow, output);
} else {
output.push(value);
}
});
return output;
};
// Return a completely flattened version of an array.
_.flatten = function(array, shallow) {
return flatten(array, shallow, []);
};
// Return a version of the array that does not contain the specified value(s).
_.without = function(array) {
return _.difference(array, slice.call(arguments, 1));
};
// Produce a duplicate-free version of the array. If the array has already
// been sorted, you have the option of using a faster algorithm.
// Aliased as `unique`.
_.uniq = _.unique = function(array, isSorted, iterator, context) {
var initial = iterator ? _.map(array, iterator, context) : array;
var results = [];
var seen = [];
each(initial, function(value, index) {
if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) {
seen.push(value);
results.push(array[index]);
}
});
return results;
};
// Produce an array that contains the union: each distinct element from all of
// the passed-in arrays.
_.union = function() {
return _.uniq(concat.apply(ArrayProto, arguments));
};
// Produce an array that contains every item shared between all the
// passed-in arrays.
_.intersection = function(array) {
var rest = slice.call(arguments, 1);
return _.filter(_.uniq(array), function(item) {
return _.every(rest, function(other) {
return _.indexOf(other, item) >= 0;
});
});
};
// Take the difference between one array and a number of other arrays.
// Only the elements present in just the first array will remain.
_.difference = function(array) {
var rest = concat.apply(ArrayProto, slice.call(arguments, 1));
return _.filter(array, function(value){ return !_.contains(rest, value); });
};
// Zip together multiple lists into a single array -- elements that share
// an index go together.
_.zip = function() {
var args = slice.call(arguments);
var length = _.max(_.pluck(args, 'length'));
var results = new Array(length);
for (var i = 0; i < length; i++) {
results[i] = _.pluck(args, "" + i);
}
return results;
};
// Converts lists into objects. Pass either a single array of `[key, value]`
// pairs, or two parallel arrays of the same length -- one of keys, and one of
// the corresponding values.
_.object = function(list, values) {
if (list == null) return {};
var result = {};
for (var i = 0, l = list.length; i < l; i++) {
if (values) {
result[list[i]] = values[i];
} else {
result[list[i][0]] = list[i][1];
}
}
return result;
};
// If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
// we need this function. Return the position of the first occurrence of an
// item in an array, or -1 if the item is not included in the array.
// Delegates to **ECMAScript 5**'s native `indexOf` if available.
// If the array is large and already in sort order, pass `true`
// for **isSorted** to use binary search.
_.indexOf = function(array, item, isSorted) {
if (array == null) return -1;
var i = 0, l = array.length;
if (isSorted) {
if (typeof isSorted == 'number') {
i = (isSorted < 0 ? Math.max(0, l + isSorted) : isSorted);
} else {
i = _.sortedIndex(array, item);
return array[i] === item ? i : -1;
}
}
if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);
for (; i < l; i++) if (array[i] === item) return i;
return -1;
};
// Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
_.lastIndexOf = function(array, item, from) {
if (array == null) return -1;
var hasIndex = from != null;
if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) {
return hasIndex ? array.lastIndexOf(item, from) : array.lastIndexOf(item);
}
var i = (hasIndex ? from : array.length);
while (i--) if (array[i] === item) return i;
return -1;
};
// Generate an integer Array containing an arithmetic progression. A port of
// the native Python `range()` function. See
// [the Python documentation](http://docs.python.org/library/functions.html#range).
_.range = function(start, stop, step) {
if (arguments.length <= 1) {
stop = start || 0;
start = 0;
}
step = arguments[2] || 1;
var len = Math.max(Math.ceil((stop - start) / step), 0);
var idx = 0;
var range = new Array(len);
while(idx < len) {
range[idx++] = start;
start += step;
}
return range;
};
// Function (ahem) Functions
// ------------------
// Reusable constructor function for prototype setting.
var ctor = function(){};
// Create a function bound to a given object (assigning `this`, and arguments,
// optionally). Binding with arguments is also known as `curry`.
// Delegates to **ECMAScript 5**'s native `Function.bind` if available.
// We check for `func.bind` first, to fail fast when `func` is undefined.
_.bind = function bind(func, context) {
var bound, args;
if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
if (!_.isFunction(func)) throw new TypeError;
args = slice.call(arguments, 2);
return bound = function() {
if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
ctor.prototype = func.prototype;
var self = new ctor;
var result = func.apply(self, args.concat(slice.call(arguments)));
if (Object(result) === result) return result;
return self;
};
};
// Bind all of an object's methods to that object. Useful for ensuring that
// all callbacks defined on an object belong to it.
_.bindAll = function(obj) {
var funcs = slice.call(arguments, 1);
if (funcs.length == 0) funcs = _.functions(obj);
each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
return obj;
};
// Memoize an expensive function by storing its results.
_.memoize = function(func, hasher) {
var memo = {};
hasher || (hasher = _.identity);
return function() {
var key = hasher.apply(this, arguments);
return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
};
};
// Delays a function for the given number of milliseconds, and then calls
// it with the arguments supplied.
_.delay = function(func, wait) {
var args = slice.call(arguments, 2);
return setTimeout(function(){ return func.apply(null, args); }, wait);
};
// Defers a function, scheduling it to run after the current call stack has
// cleared.
_.defer = function(func) {
return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
};
// Returns a function, that, when invoked, will only be triggered at most once
// during a given window of time.
_.throttle = function(func, wait) {
var context, args, timeout, result;
var previous = 0;
var later = function() {
previous = new Date;
timeout = null;
result = func.apply(context, args);
};
return function() {
var now = new Date;
var remaining = wait - (now - previous);
context = this;
args = arguments;
if (remaining <= 0) {
clearTimeout(timeout);
previous = now;
result = func.apply(context, args);
} else if (!timeout) {
timeout = setTimeout(later, remaining);
}
return result;
};
};
// Returns a function, that, as long as it continues to be invoked, will not
// be triggered. The function will be called after it stops being called for
// N milliseconds. If `immediate` is passed, trigger the function on the
// leading edge, instead of the trailing.
_.debounce = function(func, wait, immediate) {
var timeout, result;
return function() {
var context = this, args = arguments;
var later = function() {
timeout = null;
if (!immediate) result = func.apply(context, args);
};
var callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) result = func.apply(context, args);
return result;
};
};
// Returns a function that will be executed at most one time, no matter how
// often you call it. Useful for lazy initialization.
_.once = function(func) {
var ran = false, memo;
return function() {
if (ran) return memo;
ran = true;
memo = func.apply(this, arguments);
func = null;
return memo;
};
};
// Returns the first function passed as an argument to the second,
// allowing you to adjust arguments, run code before and after, and
// conditionally execute the original function.
_.wrap = function(func, wrapper) {
return function() {
var args = [func];
push.apply(args, arguments);
return wrapper.apply(this, args);
};
};
// Returns a function that is the composition of a list of functions, each
// consuming the return value of the function that follows.
_.compose = function() {
var funcs = arguments;
return function() {
var args = arguments;
for (var i = funcs.length - 1; i >= 0; i--) {
args = [funcs[i].apply(this, args)];
}
return args[0];
};
};
// Returns a function that will only be executed after being called N times.
_.after = function(times, func) {
if (times <= 0) return func();
return function() {
if (--times < 1) {
return func.apply(this, arguments);
}
};
};
// Object Functions
// ----------------
// Retrieve the names of an object's properties.
// Delegates to **ECMAScript 5**'s native `Object.keys`
_.keys = nativeKeys || function(obj) {
if (obj !== Object(obj)) throw new TypeError('Invalid object');
var keys = [];
for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key;
return keys;
};
// Retrieve the values of an object's properties.
_.values = function(obj) {
var values = [];
for (var key in obj) if (_.has(obj, key)) values.push(obj[key]);
return values;
};
// Convert an object into a list of `[key, value]` pairs.
_.pairs = function(obj) {
var pairs = [];
for (var key in obj) if (_.has(obj, key)) pairs.push([key, obj[key]]);
return pairs;
};
// Invert the keys and values of an object. The values must be serializable.
_.invert = function(obj) {
var result = {};
for (var key in obj) if (_.has(obj, key)) result[obj[key]] = key;
return result;
};
// Return a sorted list of the function names available on the object.
// Aliased as `methods`
_.functions = _.methods = function(obj) {
var names = [];
for (var key in obj) {
if (_.isFunction(obj[key])) names.push(key);
}
return names.sort();
};
// Extend a given object with all the properties in passed-in object(s).
_.extend = function(obj) {
each(slice.call(arguments, 1), function(source) {
for (var prop in source) {
obj[prop] = source[prop];
}
});
return obj;
};
// Return a copy of the object only containing the whitelisted properties.
_.pick = function(obj) {
var copy = {};
var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
each(keys, function(key) {
if (key in obj) copy[key] = obj[key];
});
return copy;
};
// Return a copy of the object without the blacklisted properties.
_.omit = function(obj) {
var copy = {};
var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
for (var key in obj) {
if (!_.contains(keys, key)) copy[key] = obj[key];
}
return copy;
};
// Fill in a given object with default properties.
_.defaults = function(obj) {
each(slice.call(arguments, 1), function(source) {
for (var prop in source) {
if (obj[prop] == null) obj[prop] = source[prop];
}
});
return obj;
};
// Create a (shallow-cloned) duplicate of an object.
_.clone = function(obj) {
if (!_.isObject(obj)) return obj;
return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
};
// Invokes interceptor with the obj, and then returns obj.
// The primary purpose of this method is to "tap into" a method chain, in
// order to perform operations on intermediate results within the chain.
_.tap = function(obj, interceptor) {
interceptor(obj);
return obj;
};
// Internal recursive comparison function for `isEqual`.
var eq = function(a, b, aStack, bStack) {
// Identical objects are equal. `0 === -0`, but they aren't identical.
// See the Harmony `egal` proposal: http://wiki.ecmascript.org/doku.php?id=harmony:egal.
if (a === b) return a !== 0 || 1 / a == 1 / b;
// A strict comparison is necessary because `null == undefined`.
if (a == null || b == null) return a === b;
// Unwrap any wrapped objects.
if (a instanceof _) a = a._wrapped;
if (b instanceof _) b = b._wrapped;
// Compare `[[Class]]` names.
var className = toString.call(a);
if (className != toString.call(b)) return false;
switch (className) {
// Strings, numbers, dates, and booleans are compared by value.
case '[object String]':
// Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
// equivalent to `new String("5")`.
return a == String(b);
case '[object Number]':
// `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
// other numeric values.
return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
case '[object Date]':
case '[object Boolean]':
// Coerce dates and booleans to numeric primitive values. Dates are compared by their
// millisecond representations. Note that invalid dates with millisecond representations
// of `NaN` are not equivalent.
return +a == +b;
// RegExps are compared by their source patterns and flags.
case '[object RegExp]':
return a.source == b.source &&
a.global == b.global &&
a.multiline == b.multiline &&
a.ignoreCase == b.ignoreCase;
}
if (typeof a != 'object' || typeof b != 'object') return false;
// Assume equality for cyclic structures. The algorithm for detecting cyclic
// structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
var length = aStack.length;
while (length--) {
// Linear search. Performance is inversely proportional to the number of
// unique nested structures.
if (aStack[length] == a) return bStack[length] == b;
}
// Add the first object to the stack of traversed objects.
aStack.push(a);
bStack.push(b);
var size = 0, result = true;
// Recursively compare objects and arrays.
if (className == '[object Array]') {
// Compare array lengths to determine if a deep comparison is necessary.
size = a.length;
result = size == b.length;
if (result) {
// Deep compare the contents, ignoring non-numeric properties.
while (size--) {
if (!(result = eq(a[size], b[size], aStack, bStack))) break;
}
}
} else {
// Objects with different constructors are not equivalent, but `Object`s
// from different frames are.
var aCtor = a.constructor, bCtor = b.constructor;
if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) &&
_.isFunction(bCtor) && (bCtor instanceof bCtor))) {
return false;
}
// Deep compare objects.
for (var key in a) {
if (_.has(a, key)) {
// Count the expected number of properties.
size++;
// Deep compare each member.
if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break;
}
}
// Ensure that both objects contain the same number of properties.
if (result) {
for (key in b) {
if (_.has(b, key) && !(size--)) break;
}
result = !size;
}
}
// Remove the first object from the stack of traversed objects.
aStack.pop();
bStack.pop();
return result;
};
// Perform a deep comparison to check if two objects are equal.
_.isEqual = function(a, b) {
return eq(a, b, [], []);
};
// Is a given array, string, or object empty?
// An "empty" object has no enumerable own-properties.
_.isEmpty = function(obj) {
if (obj == null) return true;
if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
for (var key in obj) if (_.has(obj, key)) return false;
return true;
};
// Is a given value a DOM element?
_.isElement = function(obj) {
return !!(obj && obj.nodeType === 1);
};
// Is a given value an array?
// Delegates to ECMA5's native Array.isArray
_.isArray = nativeIsArray || function(obj) {
return toString.call(obj) == '[object Array]';
};
// Is a given variable an object?
_.isObject = function(obj) {
return obj === Object(obj);
};
// Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp.
each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) {
_['is' + name] = function(obj) {
return toString.call(obj) == '[object ' + name + ']';
};
});
// Define a fallback version of the method in browsers (ahem, IE), where
// there isn't any inspectable "Arguments" type.
if (!_.isArguments(arguments)) {
_.isArguments = function(obj) {
return !!(obj && _.has(obj, 'callee'));
};
}
// Optimize `isFunction` if appropriate.
if (typeof (/./) !== 'function') {
_.isFunction = function(obj) {
return typeof obj === 'function';
};
}
// Is a given object a finite number?
_.isFinite = function(obj) {
return _.isNumber(obj) && isFinite(obj);
};
// Is the given value `NaN`? (NaN is the only number which does not equal itself).
_.isNaN = function(obj) {
return _.isNumber(obj) && obj != +obj;
};
// Is a given value a boolean?
_.isBoolean = function(obj) {
return obj === true || obj === false || toString.call(obj) == '[object Boolean]';
};
// Is a given value equal to null?
_.isNull = function(obj) {
return obj === null;
};
// Is a given variable undefined?
_.isUndefined = function(obj) {
return obj === void 0;
};
// Shortcut function for checking if an object has a given property directly
// on itself (in other words, not on a prototype).
_.has = function(obj, key) {
return hasOwnProperty.call(obj, key);
};
// Utility Functions
// -----------------
// Run Underscore.js in *noConflict* mode, returning the `_` variable to its
// previous owner. Returns a reference to the Underscore object.
_.noConflict = function() {
root._ = previousUnderscore;
return this;
};
// Keep the identity function around for default iterators.
_.identity = function(value) {
return value;
};
// Run a function **n** times.
_.times = function(n, iterator, context) {
for (var i = 0; i < n; i++) iterator.call(context, i);
};
// Return a random integer between min and max (inclusive).
_.random = function(min, max) {
if (max == null) {
max = min;
min = 0;
}
return min + (0 | Math.random() * (max - min + 1));
};
// List of HTML entities for escaping.
var entityMap = {
escape: {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
"'": ''',
'/': '/'
}
};
entityMap.unescape = _.invert(entityMap.escape);
// Regexes containing the keys and values listed immediately above.
var entityRegexes = {
escape: new RegExp('[' + _.keys(entityMap.escape).join('') + ']', 'g'),
unescape: new RegExp('(' + _.keys(entityMap.unescape).join('|') + ')', 'g')
};
// Functions for escaping and unescaping strings to/from HTML interpolation.
_.each(['escape', 'unescape'], function(method) {
_[method] = function(string) {
if (string == null) return '';
return ('' + string).replace(entityRegexes[method], function(match) {
return entityMap[method][match];
});
};
});
// If the value of the named property is a function then invoke it;
// otherwise, return it.
_.result = function(object, property) {
if (object == null) return null;
var value = object[property];
return _.isFunction(value) ? value.call(object) : value;
};
// Add your own custom functions to the Underscore object.
_.mixin = function(obj) {
each(_.functions(obj), function(name){
var func = _[name] = obj[name];
_.prototype[name] = function() {
var args = [this._wrapped];
push.apply(args, arguments);
return result.call(this, func.apply(_, args));
};
});
};
// Generate a unique integer id (unique within the entire client session).
// Useful for temporary DOM ids.
var idCounter = 0;
_.uniqueId = function(prefix) {
var id = idCounter++;
return prefix ? prefix + id : id;
};
// By default, Underscore uses ERB-style template delimiters, change the
// following template settings to use alternative delimiters.
_.templateSettings = {
evaluate : /<%([\s\S]+?)%>/g,
interpolate : /<%=([\s\S]+?)%>/g,
escape : /<%-([\s\S]+?)%>/g
};
// When customizing `templateSettings`, if you don't want to define an
// interpolation, evaluation or escaping regex, we need one that is
// guaranteed not to match.
var noMatch = /(.)^/;
// Certain characters need to be escaped so that they can be put into a
// string literal.
var escapes = {
"'": "'",
'\\': '\\',
'\r': 'r',
'\n': 'n',
'\t': 't',
'\u2028': 'u2028',
'\u2029': 'u2029'
};
var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
// JavaScript micro-templating, similar to John Resig's implementation.
// Underscore templating handles arbitrary delimiters, preserves whitespace,
// and correctly escapes quotes within interpolated code.
_.template = function(text, data, settings) {
settings = _.defaults({}, settings, _.templateSettings);
// Combine delimiters into one regular expression via alternation.
var matcher = new RegExp([
(settings.escape || noMatch).source,
(settings.interpolate || noMatch).source,
(settings.evaluate || noMatch).source
].join('|') + '|$', 'g');
// Compile the template source, escaping string literals appropriately.
var index = 0;
var source = "__p+='";
text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
source += text.slice(index, offset)
.replace(escaper, function(match) { return '\\' + escapes[match]; });
source +=
escape ? "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'" :
interpolate ? "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'" :
evaluate ? "';\n" + evaluate + "\n__p+='" : '';
index = offset + match.length;
});
source += "';\n";
// If a variable is not specified, place data values in local scope.
if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
source = "var __t,__p='',__j=Array.prototype.join," +
"print=function(){__p+=__j.call(arguments,'');};\n" +
source + "return __p;\n";
try {
var render = new Function(settings.variable || 'obj', '_', source);
} catch (e) {
e.source = source;
throw e;
}
if (data) return render(data, _);
var template = function(data) {
return render.call(this, data, _);
};
// Provide the compiled function source as a convenience for precompilation.
template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}';
return template;
};
// Add a "chain" function, which will delegate to the wrapper.
_.chain = function(obj) {
return _(obj).chain();
};
// OOP
// ---------------
// If Underscore is called as a function, it returns a wrapped object that
// can be used OO-style. This wrapper holds altered versions of all the
// underscore functions. Wrapped objects may be chained.
// Helper function to continue chaining intermediate results.
var result = function(obj) {
return this._chain ? _(obj).chain() : obj;
};
// Add all of the Underscore functions to the wrapper object.
_.mixin(_);
// Add all mutator Array functions to the wrapper.
each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
var method = ArrayProto[name];
_.prototype[name] = function() {
var obj = this._wrapped;
method.apply(obj, arguments);
if ((name == 'shift' || name == 'splice') && obj.length === 0) delete obj[0];
return result.call(this, obj);
};
});
// Add all accessor Array functions to the wrapper.
each(['concat', 'join', 'slice'], function(name) {
var method = ArrayProto[name];
_.prototype[name] = function() {
return result.call(this, method.apply(this._wrapped, arguments));
};
});
_.extend(_.prototype, {
// Start chaining a wrapped Underscore object.
chain: function() {
this._chain = true;
return this;
},
// Extracts the result from a wrapped and chained object.
value: function() {
return this._wrapped;
}
});
}).call(this);
(function (exports) {
var config = {
allowErrors: false,
autoescape: true,
cache: true,
encoding: 'utf8',
filters: filters,
root: '/',
tags: tags,
extensions: {},
tzOffset: 0
},
_config = _.extend({}, config),
CACHE = {};
// Call this before using the templates
exports.init = function (options) {
CACHE = {};
_config = _.extend({}, config, options);
_config.filters = _.extend(filters, options.filters);
_config.tags = _.extend(tags, options.tags);
dateformat.defaultTZOffset = _config.tzOffset;
};
function TemplateError(error) {
return { render: function () {
return '<pre>' + error.stack + '</pre>';
}};
}
function createRenderFunc(code) {
// The compiled render function - this is all we need
return new Function('_context', '_parents', '_filters', '_', '_ext', [
'_parents = _parents ? _parents.slice() : [];',
'_context = _context || {};',
// Prevents circular includes (which will crash node without warning)
'var j = _parents.length,',
' _output = "",',
' _this = this;',
// Note: this loop averages much faster than indexOf across all cases
'while (j--) {',
' if (_parents[j] === this.id) {',
' return "Circular import of template " + this.id + " in " + _parents[_parents.length-1];',
' }',
'}',
// Add this template as a parent to all includes in its scope
'_parents.push(this.id);',
code,
'return _output;'
].join(''));
}
function createTemplate(data, id) {
var template = {
// Allows us to include templates from the compiled code
compileFile: exports.compileFile,
// These are the blocks inside the template
blocks: {},
// Distinguish from other tokens
type: parser.TEMPLATE,
// The template ID (path relative to template dir)
id: id
},
tokens,
code,
render;
// The template token tree before compiled into javascript
if (_config.allowErrors) {
tokens = parser.parse.call(template, data, _config.tags, _config.autoescape);
} else {
try {
tokens = parser.parse.call(template, data, _config.tags, _config.autoescape);
} catch (e) {
return new TemplateError(e);
}
}
template.tokens = tokens;
// The raw template code
code = parser.compile.call(template);
if (code !== false) {
render = createRenderFunc(code);
} else {
render = function (_context, _parents, _filters, _, _ext) {
template.tokens = tokens;
code = parser.compile.call(template, '', _context);
var fn = createRenderFunc(code);
return fn.call(this, _context, _parents, _filters, _, _ext);
};
}
template.render = function (context, parents) {
if (_config.allowErrors) {
return render.call(this, context, parents, _config.filters, _, _config.extensions);
}
try {
return render.call(this, context, parents, _config.filters, _, _config.extensions);
} catch (e) {
return new TemplateError(e);
}
};
return template;
}
function getTemplate(source, options) {
var key = options.filename || source;
if (_config.cache || options.cache) {
if (!CACHE.hasOwnProperty(key)) {
CACHE[key] = createTemplate(source, key);
}
return CACHE[key];
}
return createTemplate(source, key);
}
exports.compileFile = function (filepath, forceAllowErrors) {
var tpl, get;
if (_config.cache && CACHE.hasOwnProperty(filepath)) {
return CACHE[filepath];
}
if (typeof window !== 'undefined') {
throw new TemplateError({ stack: 'You must pre-compile all templates in-browser. Use `swig.compile(template);`.' });
}
get = function () {
var excp,
getSingle,
c;
getSingle = function (prefix) {
var file = ((/^\//).test(filepath) || (/^.:/).test(filepath)) ? filepath : prefix + '/' + filepath,
data;
try {
data = fs.readFileSync(file, config.encoding);
tpl = getTemplate(data, { filename: filepath });
} catch (e) {
excp = e;
}
};
if (typeof _config.root === "string") {
getSingle(_config.root);
}
if (_config.root instanceof Array) {
c = 0;
while (tpl === undefined && c < _config.root.length) {
getSingle(_config.root[c]);
c = c + 1;
}
}
if (tpl === undefined) {
throw excp;
}
};
if (_config.allowErrors || forceAllowErrors) {
get();
} else {
try {
get();
} catch (error) {
tpl = new TemplateError(error);
}
}
return tpl;
};
exports.compile = function (source, options) {
var tmpl = getTemplate(source, options || {});
return function (source, options) {
return tmpl.render(source, options);
};
};
})(swig);
(function (exports) {
// Javascript keywords can't be a name: 'for.is_invalid' as well as 'for' but not 'for_' or '_for'
var KEYWORDS = /^(Array|ArrayBuffer|Boolean|Date|Error|eval|EvalError|Function|Infinity|Iterator|JSON|Math|Namespace|NaN|Number|Object|QName|RangeError|ReferenceError|RegExp|StopIteration|String|SyntaxError|TypeError|undefined|uneval|URIError|XML|XMLList|break|case|catch|continue|debugger|default|delete|do|else|finally|for|function|if|in|instanceof|new|return|switch|this|throw|try|typeof|var|void|while|with)(?=(\.|$))/;
// Returns TRUE if the passed string is a valid javascript string literal
exports.isStringLiteral = function (string) {
if (typeof string !== 'string') {
return false;
}
var first = string.substring(0, 1),
last = string.charAt(string.length - 1, 1),
teststr;
if ((first === last) && (first === "'" || first === '"')) {
teststr = string.substr(1, string.length - 2).split('').reverse().join('');
if ((first === "'" && (/'(?!\\)/).test(teststr)) || (last === '"' && (/"(?!\\)/).test(teststr))) {
throw new Error('Invalid string literal. Unescaped quote (' + string[0] + ') found.');
}
return true;
}
return false;
};
// Returns TRUE if the passed string is a valid javascript number or string literal
exports.isLiteral = function (string) {
var literal = false;
// Check if it's a number literal
if ((/^\d+([.]\d+)?$/).test(string)) {
literal = true;
} else if (exports.isStringLiteral(string)) {
literal = true;
}
return literal;
};
// Variable names starting with __ are reserved.
exports.isValidName = function (string) {
return ((typeof string === 'string')
&& string.substr(0, 2) !== '__'
&& (/^([$A-Za-z_]+[$A-Za-z_0-9]*)(\.?([$A-Za-z_]+[$A-Za-z_0-9]*))*$/).test(string)
&& !KEYWORDS.test(string));
};
// Variable names starting with __ are reserved.
exports.isValidShortName = function (string) {
return string.substr(0, 2) !== '__' && (/^[$A-Za-z_]+[$A-Za-z_0-9]*$/).test(string) && !KEYWORDS.test(string);
};
// Checks if a name is a vlaid block name
exports.isValidBlockName = function (string) {
return (/^[A-Za-z]+[A-Za-z_0-9]*$/).test(string);
};
function stripWhitespace(input) {
return input.replace(/^\s+|\s+$/g, '');
}
exports.stripWhitespace = stripWhitespace;
// the varname is split on (/(\.|\[|\])/) but it may contain keys with dots,
// e.g. obj['hello.there']
// this function searches for these and preserves the literal parts
function filterVariablePath(props) {
var filtered = [],
literal = '',
i = 0;
for (i; i < props.length; i += 1) {
if (props[i] && props[i].charAt(0) !== props[i].charAt(props[i].length - 1) &&
(props[i].indexOf('"') === 0 || props[i].indexOf("'") === 0)) {
literal = props[i];
continue;
}
if (props[i] === '.' && literal) {
literal += '.';
continue;
}
if (props[i].indexOf('"') === props[i].length - 1 || props[i].indexOf("'") === props[i].length - 1) {
literal += props[i];
filtered.push(literal);
literal = '';
} else {
filtered.push(props[i]);
}
}
return _.compact(filtered);
}
/**
* Returns a valid javascript code that will
* check if a variable (or property chain) exists
* in the evaled context. For example:
* check('foo.bar.baz')
* will return the following string:
* typeof foo !== 'undefined' && typeof foo.bar !== 'undefined' && typeof foo.bar.baz !== 'undefined'
*/
function check(variable, context) {
if (_.isArray(variable)) {
return '(true)';
}
variable = variable.replace(/^this/, '_this.__currentContext');
if (exports.isLiteral(variable)) {
return '(true)';
}
var props = variable.split(/(\.|\[|\])/),
chain = '',
output = [],
inArr = false,
prevDot = false;
if (typeof context === 'string' && context.length) {
props.unshift(context);
}
props = _.reject(props, function (val) {
return val === '';
});
props = filterVariablePath(props);
_.each(props, function (prop) {
if (prop === '.') {
prevDot = true;
return;
}
if (prop === '[') {
inArr = true;
return;
}
if (prop === ']') {
inArr = false;
return;
}
if (!chain) {
chain = prop;
} else if (inArr) {
if (!exports.isStringLiteral(prop)) {
if (prevDot) {
output[output.length - 1] = _.last(output).replace(/\] !== "undefined"$/, '_' + prop + '] !== "undefined"');
chain = chain.replace(/\]$/, '_' + prop + ']');
return;
}
chain += '[___' + prop + ']';
} else {
chain += '[' + prop + ']';
}
} else {
chain += '.' + prop;
}
prevDot = false;
output.push('typeof ' + chain + ' !== "undefined"');
});
return '(' + output.join(' && ') + ')';
}
exports.check = check;
/**
* Returns an escaped string (safe for evaling). If context is passed
* then returns a concatenation of context and the escaped variable name.
*/
exports.escapeVarName = function (variable, context) {
if (_.isArray(variable)) {
_.each(variable, function (val, key) {
variable[key] = exports.escapeVarName(val, context);
});
return variable;
}
variable = variable.replace(/^this/, '_this.__currentContext');
if (exports.isLiteral(variable)) {
return variable;
}
if (typeof context === 'string' && context.length) {
variable = context + '.' + variable;
}
var chain = '',
props = variable.split(/(\.|\[|\])/),
inArr = false,
prevDot = false;
props = _.reject(props, function (val) {
return val === '';
});
props = filterVariablePath(props);
_.each(props, function (prop) {
if (prop === '.') {
prevDot = true;
return;
}
if (prop === '[') {
inArr = true;
return;
}
if (prop === ']') {
inArr = false;
return;
}
if (!chain) {
chain = prop;
} else if (inArr) {
if (!exports.isStringLiteral(prop)) {
if (prevDot) {
chain = chain.replace(/\]$/, '_' + prop + ']');
} else {
chain += '[___' + prop + ']';
}
} else {
chain += '[' + prop + ']';
}
} else {
chain += '.' + prop;
}
prevDot = false;
});
return chain;
};
exports.wrapMethod = function (variable, filter, context) {
var output = '(function () {\n',
args;
variable = variable || '""';
if (!filter) {
return variable;
}
args = filter.args.split(',');
args = _.map(args, function (value) {
var varname,
stripped = value.replace(/^\s+|\s+$/g, '');
try {
varname = '__' + parser.parseVariable(stripped).name.replace(/\W/g, '_');
} catch (e) {
return value;
}
if (exports.isValidName(stripped)) {
output += exports.setVar(varname, parser.parseVariable(stripped));
return varname;
}
return value;
});
args = (args && args.length) ? args.join(',') : '""';
output += 'return ';
output += (context) ? context + '["' : '';
output += filter.name;
output += (context) ? '"]' : '';
output += '.call(this';
output += (args.length) ? ', ' + args : '';
output += ');\n';
return output + '})()';
};
exports.wrapFilter = function (variable, filter) {
var output = '',
args = '';
variable = variable || '""';
if (!filter) {
return variable;
}
if (filters.hasOwnProperty(filter.name)) {
args = (filter.args) ? variable + ', ' + filter.args : variable;
output += exports.wrapMethod(variable, { name: filter.name, args: args }, '_filters');
} else {
throw new Error('Filter "' + filter.name + '" not found');
}
return output;
};
exports.wrapFilters = function (variable, filters, context, escape) {
var output = exports.escapeVarName(variable, context);
if (filters && filters.length > 0) {
_.each(filters, function (filter) {
switch (filter.name) {
case 'raw':
escape = false;
return;
case 'e':
case 'escape':
escape = filter.args || escape;
return;
default:
output = exports.wrapFilter(output, filter, '_filters');
break;
}
});
}
output = output || '""';
if (escape) {
output = '_filters.escape.call(this, ' + output + ', ' + escape + ')';
}
return output;
};
exports.setVar = function (varName, argument) {
var out = '',
props,
output,
inArr;
if ((/\[/).test(argument.name)) {
props = argument.name.split(/(\[|\])/);
output = [];
inArr = false;
_.each(props, function (prop) {
if (prop === '') {
return;
}
if (prop === '[') {
inArr = true;
return;
}
if (prop === ']') {
inArr = false;
return;
}
if (inArr && !exports.isStringLiteral(prop)) {
out += exports.setVar('___' + prop.replace(/\W/g, '_'), { name: prop, filters: [], escape: true });
}
});
}
out += 'var ' + varName + ' = "";\n' +
'if (' + check(argument.name, '_context') + ') {\n' +
' ' + varName + ' = ' + exports.wrapFilters(argument.name, argument.filters, '_context', argument.escape) + ';\n' +
'} else if (' + check(argument.name) + ') {\n' +
' ' + varName + ' = ' + exports.wrapFilters(argument.name, argument.filters, null, argument.escape) + ';\n' +
'}\n';
if (argument.filters.length) {
out += ' else if (true) {\n';
out += ' ' + varName + ' = ' + exports.wrapFilters('', argument.filters, null, argument.escape) + ';\n';
out += '}\n';
}
return out;
};
exports.parseIfArgs = function (args, parser) {
var operators = ['==', '<', '>', '!=', '<=', '>=', '===', '!==', '&&', '||', 'in', 'and', 'or', 'mod', '%'],
errorString = 'Bad if-syntax in `{% if ' + args.join(' ') + ' %}...',
startParen = /^\(+/,
endParen = /\)+$/,
tokens = [],
prevType,
last,
closing = 0;
_.each(args, function (value, index) {
var endsep = 0,
startsep = 0,
operand;
if (startParen.test(value)) {
startsep = value.match(startParen)[0].length;
closing += startsep;
value = value.replace(startParen, '');
while (startsep) {
startsep -= 1;
tokens.push({ type: 'separator', value: '(' });
}
}
if ((/^\![^=]/).test(value) || (value === 'not')) {
if (value === 'not') {
value = '';
} else {
value = value.substr(1);
}
tokens.push({ type: 'operator', value: '!' });
}
if (endParen.test(value) && value.indexOf('(') === -1) {
if (!closing) {
throw new Error(errorString);
}
endsep = value.match(endParen)[0].length;
value = value.replace(endParen, '');
closing -= endsep;
}
if (value === 'in') {
last = tokens.pop();
prevType = 'inindex';
} else if (_.indexOf(operators, value) !== -1) {
if (prevType === 'operator') {
throw new Error(errorString);
}
value = value.replace('and', '&&').replace('or', '||').replace('mod', '%');
tokens.push({
value: value
});
prevType = 'operator';
} else if (value !== '') {
if (prevType === 'value') {
throw new Error(errorString);
}
operand = parser.parseVariable(value);
if (prevType === 'inindex') {
tokens.push({
preout: last.preout + exports.setVar('__op' + index, operand),
value: '(((_.isArray(__op' + index + ') || typeof __op' + index + ' === "string") && _.indexOf(__op' + index + ', ' + last.value + ') !== -1) || (typeof __op' + index + ' === "object" && ' + last.value + ' in __op' + index + '))'
});
last = null;
} else {
tokens.push({
preout: exports.setVar('__op' + index, operand),
value: '__op' + index
});
}
prevType = 'value';
}
while (endsep) {
endsep -= 1;
tokens.push({ type: 'separator', value: ')' });
}
});
if (closing > 0) {
throw new Error(errorString);
}
return tokens;
};
})(helpers);
(function (exports) {
var _months = {
full: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
abbr: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
},
_days = {
full: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
abbr: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
alt: {'-1': 'Yesterday', 0: 'Today', 1: 'Tomorrow'}
};
/*
DateZ is licensed under the MIT License:
Copyright (c) 2011 Tomo Universalis (http://tomouniversalis.com)
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
exports.defaultTZOffset = 0;
exports.DateZ = function () {
var members = {
'default': ['getUTCDate', 'getUTCDay', 'getUTCFullYear', 'getUTCHours', 'getUTCMilliseconds', 'getUTCMinutes', 'getUTCMonth', 'getUTCSeconds', 'toISOString', 'toGMTString', 'toUTCString', 'valueOf', 'getTime'],
z: ['getDate', 'getDay', 'getFullYear', 'getHours', 'getMilliseconds', 'getMinutes', 'getMonth', 'getSeconds', 'getYear', 'toDateString', 'toLocaleDateString', 'toLocaleTimeString'],
'string': ['toLocaleString', 'toString', 'toTimeString'],
zSet: ['setDate', 'setFullYear', 'setHours', 'setMilliseconds', 'setMinutes', 'setMonth', 'setSeconds', 'setTime', 'setYear'],
set: ['setUTCDate', 'setUTCFullYear', 'setUTCHours', 'setUTCMilliseconds', 'setUTCMinutes', 'setUTCMonth', 'setUTCSeconds'],
'static': ['UTC', 'parse']
},
d = this,
i;
d.date = d.dateZ = (arguments.length > 1) ? new Date(Date.UTC.apply(Date, arguments) + ((new Date()).getTimezoneOffset() * 60000)) : (arguments.length === 1) ? new Date(new Date(arguments['0'])) : new Date();
d.timezoneOffset = d.dateZ.getTimezoneOffset();
function zeroPad(i) {
return (i < 10) ? '0' + i : i;
}
function _toTZString() {
var hours = zeroPad(Math.floor(Math.abs(d.timezoneOffset) / 60)),
minutes = zeroPad(Math.abs(d.timezoneOffset) - hours * 60),
prefix = (d.timezoneOffset < 0) ? '+' : '-',
abbr = (d.tzAbbreviation === undefined) ? '' : ' (' + d.tzAbbreviation + ')';
return 'GMT' + prefix + hours + minutes + abbr;
}
_.each(members.z, function (name) {
d[name] = function () {
return d.dateZ[name]();
};
});
_.each(members.string, function (name) {
d[name] = function () {
return d.dateZ[name].apply(d.dateZ, []).replace(/GMT[+\-]\\d{4} \\(([a-zA-Z]{3,4})\\)/, _toTZString());
};
});
_.each(members['default'], function (name) {
d[name] = function () {
return d.date[name]();
};
});
_.each(members['static'], function (name) {
d[name] = function () {
return Date[name].apply(Date, arguments);
};
});
_.each(members.zSet, function (name) {
d[name] = function () {
d.dateZ[name].apply(d.dateZ, arguments);
d.date = new Date(d.dateZ.getTime() - d.dateZ.getTimezoneOffset() * 60000 + d.timezoneOffset * 60000);
return d;
};
});
_.each(members.set, function (name) {
d[name] = function () {
d.date[name].apply(d.date, arguments);
d.dateZ = new Date(d.date.getTime() + d.date.getTimezoneOffset() * 60000 - d.timezoneOffset * 60000);
return d;
};
});
if (exports.defaultTZOffset) {
this.setTimezoneOffset(exports.defaultTZOffset);
}
};
exports.DateZ.prototype = {
getTimezoneOffset: function () {
return this.timezoneOffset;
},
setTimezoneOffset: function (offset, abbr) {
this.timezoneOffset = offset;
if (abbr) {
this.tzAbbreviation = abbr;
}
this.dateZ = new Date(this.date.getTime() + this.date.getTimezoneOffset() * 60000 - this.timezoneOffset * 60000);
return this;
}
};
// Day
exports.d = function (input) {
return (input.getDate() < 10 ? '0' : '') + input.getDate();
};
exports.D = function (input) {
return _days.abbr[input.getDay()];
};
exports.j = function (input) {
return input.getDate();
};
exports.l = function (input) {
return _days.full[input.getDay()];
};
exports.N = function (input) {
var d = input.getDay();
return (d >= 1) ? d + 1 : 7;
};
exports.S = function (input) {
var d = input.getDate();
return (d % 10 === 1 && d !== 11 ? 'st' : (d % 10 === 2 && d !== 12 ? 'nd' : (d % 10 === 3 && d !== 13 ? 'rd' : 'th')));
};
exports.w = function (input) {
return input.getDay();
};
exports.z = function (input, offset, abbr) {
var year = input.getFullYear(),
e = new exports.DateZ(year, input.getMonth(), input.getDate(), 12, 0, 0),
d = new exports.DateZ(year, 0, 1, 12, 0, 0);
e.setTimezoneOffset(offset, abbr);
d.setTimezoneOffset(offset, abbr);
return Math.round((e - d) / 86400000);
};
// Week
exports.W = function (input) {
var target = new Date(input.valueOf()),
dayNr = (input.getDay() + 6) % 7,
fThurs;
target.setDate(target.getDate() - dayNr + 3);
fThurs = target.valueOf();
target.setMonth(0, 1);
if (target.getDay() !== 4) {
target.setMonth(0, 1 + ((4 - target.getDay()) + 7) % 7);
}
return 1 + Math.ceil((fThurs - target) / 604800000);
};
// Month
exports.F = function (input) {
return _months.full[input.getMonth()];
};
exports.m = function (input) {
return (input.getMonth() < 9 ? '0' : '') + (input.getMonth() + 1);
};
exports.M = function (input) {
return _months.abbr[input.getMonth()];
};
exports.n = function (input) {
return input.getMonth() + 1;
};
exports.t = function (input) {
return 32 - (new Date(input.getFullYear(), input.getMonth(), 32).getDate());
};
// Year
exports.L = function (input) {
return new Date(input.getFullYear(), 1, 29).getDate() === 29;
};
exports.o = function (input) {
var target = new Date(input.valueOf());
target.setDate(target.getDate() - ((input.getDay() + 6) % 7) + 3);
return target.getFullYear();
};
exports.Y = function (input) {
return input.getFullYear();
};
exports.y = function (input) {
return (input.getFullYear().toString()).substr(2);
};
// Time
exports.a = function (input) {
return input.getHours() < 12 ? 'am' : 'pm';
};
exports.A = function (input) {
return input.getHours() < 12 ? 'AM' : 'PM';
};
exports.B = function (input) {
var hours = input.getUTCHours(), beats;
hours = (hours === 23) ? 0 : hours + 1;
beats = Math.abs(((((hours * 60) + input.getUTCMinutes()) * 60) + input.getUTCSeconds()) / 86.4).toFixed(0);
return ('000'.concat(beats).slice(beats.length));
};
exports.g = function (input) {
var h = input.getHours();
return h === 0 ? 12 : (h > 12 ? h - 12 : h);
};
exports.G = function (input) {
return input.getHours();
};
exports.h = function (input) {
var h = input.getHours();
return ((h < 10 || (12 < h && 22 > h)) ? '0' : '') + ((h < 12) ? h : h - 12);
};
exports.H = function (input) {
var h = input.getHours();
return (h < 10 ? '0' : '') + h;
};
exports.i = function (input) {
var m = input.getMinutes();
return (m < 10 ? '0' : '') + m;
};
exports.s = function (input) {
var s = input.getSeconds();
return (s < 10 ? '0' : '') + s;
};
//u = function () { return ''; },
// Timezone
//e = function () { return ''; },
//I = function () { return ''; },
exports.O = function (input) {
var tz = input.getTimezoneOffset();
return (tz < 0 ? '-' : '+') + (tz / 60 < 10 ? '0' : '') + Math.abs((tz / 60)) + '00';
};
//T = function () { return ''; },
exports.Z = function (input) {
return input.getTimezoneOffset() * 60;
};
// Full Date/Time
exports.c = function (input) {
return input.toISOString();
};
exports.r = function (input) {
return input.toUTCString();
};
exports.U = function (input) {
return input.getTime() / 1000;
};
})(dateformat);
(function (exports) {
exports.add = function (input, addend) {
if (_.isArray(input) && _.isArray(addend)) {
return input.concat(addend);
}
if (typeof input === 'object' && typeof addend === 'object') {
return _.extend(input, addend);
}
if (_.isNumber(input) && _.isNumber(addend)) {
return input + addend;
}
return input + addend;
};
exports.addslashes = function (input) {
if (typeof input === 'object') {
_.each(input, function (value, key) {
input[key] = exports.addslashes(value);
});
return input;
}
return input.replace(/\\/g, '\\\\').replace(/\'/g, "\\'").replace(/\"/g, '\\"');
};
exports.capitalize = function (input) {
if (typeof input === 'object') {
_.each(input, function (value, key) {
input[key] = exports.capitalize(value);
});
return input;
}
return input.toString().charAt(0).toUpperCase() + input.toString().substr(1).toLowerCase();
};
exports.date = function (input, format, offset, abbr) {
var l = format.length,
date = new dateformat.DateZ(input),
cur,
i = 0,
out = '';
if (offset) {
date.setTimezoneOffset(offset, abbr);
}
for (i; i < l; i += 1) {
cur = format.charAt(i);
if (dateformat.hasOwnProperty(cur)) {
out += dateformat[cur](date, offset, abbr);
} else {
out += cur;
}
}
return out;
};
exports['default'] = function (input, def) {
return (typeof input !== 'undefined' && (input || typeof input === 'number')) ? input : def;
};
exports.escape = exports.e = function (input, type) {
type = type || 'html';
if (typeof input === 'string') {
if (type === 'js') {
var i = 0,
code,
out = '';
input = input.replace(/\\/g, '\\u005C');
for (i; i < input.length; i += 1) {
code = input.charCodeAt(i);
if (code < 32) {
code = code.toString(16).toUpperCase();
code = (code.length < 2) ? '0' + code : code;
out += '\\u00' + code;
} else {
out += input[i];
}
}
return out.replace(/&/g, '\\u0026')
.replace(/</g, '\\u003C')
.replace(/>/g, '\\u003E')
.replace(/\'/g, '\\u0027')
.replace(/"/g, '\\u0022')
.replace(/\=/g, '\\u003D')
.replace(/-/g, '\\u002D')
.replace(/;/g, '\\u003B');
}
return input.replace(/&(?!amp;|lt;|gt;|quot;|#39;)/g, '&')
.replace(/</g, '<')
.replace(/>/g, '>')
.replace(/"/g, '"')
.replace(/'/g, ''');
}
return input;
};
exports.first = function (input) {
if (typeof input === 'object' && !_.isArray(input)) {
return '';
}
if (typeof input === 'string') {
return input.substr(0, 1);
}
return _.first(input);
};
exports.join = function (input, separator) {
if (_.isArray(input)) {
return input.join(separator);
}
if (typeof input === 'object') {
var out = [];
_.each(input, function (value, key) {
out.push(value);
});
return out.join(separator);
}
return input;
};
exports.json_encode = function (input, indent) {
return JSON.stringify(input, null, indent || 0);
};
exports.last = function (input) {
if (typeof input === 'object' && !_.isArray(input)) {
return '';
}
if (typeof input === 'string') {
return input.charAt(input.length - 1);
}
return _.last(input);
};
exports.length = function (input) {
if (typeof input === 'object') {
return _.keys(input).length;
}
return input.length;
};
exports.lower = function (input) {
if (typeof input === 'object') {
_.each(input, function (value, key) {
input[key] = exports.lower(value);
});
return input;
}
return input.toString().toLowerCase();
};
exports.replace = function (input, search, replacement, flags) {
var r = new RegExp(search, flags);
return input.replace(r, replacement);
};
exports.reverse = function (input) {
if (_.isArray(input)) {
return input.reverse();
}
return input;
};
exports.striptags = function (input) {
if (typeof input === 'object') {
_.each(input, function (value, key) {
input[key] = exports.striptags(value);
});
return input;
}
return input.toString().replace(/(<([^>]+)>)/ig, '');
};
exports.title = function (input) {
if (typeof input === 'object') {
_.each(input, function (value, key) {
input[key] = exports.title(value);
});
return input;
}
return input.toString().replace(/\w\S*/g, function (str) {
return str.charAt(0).toUpperCase() + str.substr(1).toLowerCase();
});
};
exports.uniq = function (input) {
return _.uniq(input);
};
exports.upper = function (input) {
if (typeof input === 'object') {
_.each(input, function (value, key) {
input[key] = exports.upper(value);
});
return input;
}
return input.toString().toUpperCase();
};
exports.url_encode = function (input) {
return encodeURIComponent(input);
};
exports.url_decode = function (input) {
return decodeURIComponent(input);
};
})(filters);
(function (exports) {
var variableRegexp = /^\{\{[^\r]*?\}\}$/,
logicRegexp = /^\{%[^\r]*?%\}$/,
commentRegexp = /^\{#[^\r]*?#\}$/,
TEMPLATE = exports.TEMPLATE = 0,
LOGIC_TOKEN = 1,
VAR_TOKEN = 2;
exports.TOKEN_TYPES = {
TEMPLATE: TEMPLATE,
LOGIC: LOGIC_TOKEN,
VAR: VAR_TOKEN
};
function getMethod(input) {
return helpers.stripWhitespace(input).match(/^[\w\.]+/)[0];
}
function doubleEscape(input) {
return input.replace(/\\/g, '\\\\');
}
function getArgs(input) {
return doubleEscape(helpers.stripWhitespace(input).replace(/^[\w\.]+\(|\)$/g, ''));
}
function getContextVar(varName, context) {
var a = varName.split(".");
while (a.length) {
context = context[a.splice(0, 1)[0]];
}
return context;
}
function getTokenArgs(token, parts) {
parts = _.map(parts, doubleEscape);
var i = 0,
l = parts.length,
arg,
ender,
out = [];
function concat(from, ending) {
var end = new RegExp('\\' + ending + '$'),
i = from,
out = '';
while (!(end).test(out) && i < parts.length) {
out += ' ' + parts[i];
parts[i] = null;
i += 1;
}
if (!end.test(out)) {
throw new Error('Malformed arguments ' + out + ' sent to tag.');
}
return out.replace(/^ /, '');
}
for (i; i < l; i += 1) {
arg = parts[i];
if (arg === null || (/^\s+$/).test(arg)) {
continue;
}
if (
((/^\"/).test(arg) && !(/\"[\]\}]?$/).test(arg))
|| ((/^\'/).test(arg) && !(/\'[\]\}]?$/).test(arg))
|| ((/^\{/).test(arg) && !(/\}$/).test(arg))
|| ((/^\[/).test(arg) && !(/\]$/).test(arg))
) {
switch (arg.substr(0, 1)) {
case "'":
ender = "'";
break;
case '"':
ender = '"';
break;
case '[':
ender = ']';
break;
case '{':
ender = '}';
break;
}
out.push(concat(i, ender));
continue;
}
out.push(arg);
}
return out;
}
function findSubBlocks(topToken, blocks) {
_.each(topToken.tokens, function (token, index) {
if (token.name === 'block') {
blocks[token.args[0]] = token;
findSubBlocks(token, blocks);
}
});
}
function getParentBlock(token) {
var block;
if (token.parentBlock) {
block = token.parentBlock;
} else if (token.parent) {
block = getParentBlock(_.last(token.parent));
}
return block;
}
exports.parseVariable = function (token, escape) {
if (!token) {
return {
type: null,
name: '',
filters: [],
escape: escape
};
}
var filters = [],
parts = token.replace(/^\{\{\s*|\s*\}\}$/g, '').split('|'),
varname = parts.shift(),
args = null,
part;
if ((/\(/).test(varname)) {
args = getArgs(varname.replace(/^\w+\./, ''));
varname = getMethod(varname);
}
_.each(parts, function (part, i) {
if (part && ((/^[\w\.]+\(/).test(part) || (/\)$/).test(part)) && !(/^[\w\.]+\([^\)]*\)$/).test(part)) {
parts[i] += ((parts[i + 1]) ? '|' + parts[i + 1] : '');
parts[i + 1] = false;
}
});
parts = _.without(parts, false);
_.each(parts, function (part) {
var filter_name = getMethod(part);
if ((/\(/).test(part)) {
filters.push({
name: filter_name,
args: getArgs(part)
});
} else {
filters.push({ name: filter_name, args: '' });
}
});
return {
type: VAR_TOKEN,
name: varname,
args: args,
filters: filters,
escape: escape
};
};
exports.parse = function (data, tags, autoescape) {
var rawtokens = helpers.stripWhitespace(data).split(/(\{%[^\r]*?%\}|\{\{.*?\}\}|\{#[^\r]*?#\})/),
escape = !!autoescape,
last_escape = escape,
stack = [[]],
index = 0,
i = 0,
j = rawtokens.length,
token,
parts,
tagname,
lines = 1,
curline = 1,
newlines = null,
lastToken,
rawStart = /^\{\% *raw *\%\}/,
rawEnd = /\{\% *endraw *\%\}$/,
inRaw = false,
stripAfter = false,
stripBefore = false,
stripStart = false,
stripEnd = false;
for (i; i < j; i += 1) {
token = rawtokens[i];
curline = lines;
newlines = token.match(/\n/g);
stripAfter = false;
stripBefore = false;
stripStart = false;
stripEnd = false;
if (newlines) {
lines += newlines.length;
}
if (inRaw !== false && !rawEnd.test(token)) {
inRaw += token;
continue;
}
// Ignore empty strings and comments
if (token.length === 0 || commentRegexp.test(token)) {
continue;
} else if (/^\s+$/.test(token)) {
token = token.replace(/ +/, ' ').replace(/\n+/, '\n');
} else if (variableRegexp.test(token)) {
token = exports.parseVariable(token, escape);
} else if (logicRegexp.test(token)) {
if (rawEnd.test(token)) {
// Don't care about the content in a raw tag, so end tag may not start correctly
token = inRaw + token.replace(rawEnd, '');
inRaw = false;
stack[index].push(token);
continue;
}
if (rawStart.test(token)) {
// Have to check the whole token directly, not just parts, as the tag may not end correctly while in raw
inRaw = token.replace(rawStart, '');
continue;
}
parts = token.replace(/^\{%\s*|\s*%\}$/g, '').split(' ');
if (parts[0] === '-') {
stripBefore = true;
parts.shift();
}
tagname = parts.shift();
if (_.last(parts) === '-') {
stripAfter = true;
parts.pop();
}
if (index > 0 && (/^end/).test(tagname)) {
lastToken = _.last(stack[stack.length - 2]);
if ('end' + lastToken.name === tagname) {
if (lastToken.name === 'autoescape') {
escape = last_escape;
}
lastToken.strip.end = stripBefore;
lastToken.strip.after = stripAfter;
stack.pop();
index -= 1;
continue;
}
throw new Error('Expected end tag for "' + lastToken.name + '", but found "' + tagname + '" at line ' + lines + '.');
}
if (!tags.hasOwnProperty(tagname)) {
throw new Error('Unknown logic tag at line ' + lines + ': "' + tagname + '".');
}
if (tagname === 'autoescape') {
last_escape = escape;
escape = (!parts.length || parts[0] === 'true') ? ((parts.length >= 2) ? parts[1] : true) : false;
}
token = {
type: LOGIC_TOKEN,
line: curline,
name: tagname,
compile: tags[tagname],
parent: _.uniq(stack[stack.length - 2] || []),
strip: {
before: stripBefore,
after: stripAfter,
start: false,
end: false
}
};
token.args = getTokenArgs(token, parts);
if (tags[tagname].ends) {
token.strip.after = false;
token.strip.start = stripAfter;
stack[index].push(token);
stack.push(token.tokens = []);
index += 1;
continue;
}
}
// Everything else is treated as a string
stack[index].push(token);
}
if (inRaw !== false) {
throw new Error('Missing expected end tag for "raw" on line ' + curline + '.');
}
if (index !== 0) {
lastToken = _.last(stack[stack.length - 2]);
throw new Error('Missing end tag for "' + lastToken.name + '" that was opened on line ' + lastToken.line + '.');
}
return stack[index];
};
function precompile(indent, context) {
var filepath,
extendsHasVar,
preservedTokens = [];
// Precompile - extract blocks and create hierarchy based on 'extends' tags
// TODO: make block and extends tags accept context variables
// Only precompile at the template level
if (this.type === TEMPLATE) {
_.each(this.tokens, function (token, index) {
if (!extendsHasVar) {
// Load the parent template
if (token.name === 'extends') {
filepath = token.args[0];
if (!helpers.isStringLiteral(filepath)) {
if (!context) {
extendsHasVar = true;
return;
}
filepath = "\"" + getContextVar(filepath, context) + "\"";
}
if (!helpers.isStringLiteral(filepath) || token.args.length > 1) {
throw new Error('Extends tag on line ' + token.line + ' accepts exactly one string literal as an argument.');
}
if (index > 0) {
throw new Error('Extends tag must be the first tag in the template, but "extends" found on line ' + token.line + '.');
}
token.template = this.compileFile(filepath.replace(/['"]/g, ''), true);
this.parent = token.template;
// inherit tokens/blocks from parent.
this.blocks = _.extend({}, this.parent.blocks, this.blocks);
} else if (token.name === 'block') { // Make a list of blocks
var blockname = token.args[0],
parentBlockIndex;
if (!helpers.isValidBlockName(blockname) || token.args.length !== 1) {
throw new Error('Invalid block tag name "' + blockname + '" on line ' + token.line + '.');
}
// store blocks as flat reference list on top-level
// template object
this.blocks[blockname] = token;
// child tokens may contain more blocks at this template
// level - apply to flat this.blocks object
findSubBlocks(token, this.blocks);
// search parent list for a matching block, replacing the
// parent template block tokens with the derived token.
if (this.parent) {
// Store parent token object on a derived block
token.parentBlock = this.parent.blocks[blockname];
// this will return -1 for a nested block
parentBlockIndex = _.indexOf(this.parent.tokens,
this.parent.blocks[blockname]);
if (parentBlockIndex >= 0) {
this.parent.tokens[parentBlockIndex] = token;
}
}
} else if (token.type === LOGIC_TOKEN) {
// Preserve any template logic from the extended template.
preservedTokens.push(token);
}
// else, discard any tokens that are not under a LOGIC_TOKEN
// or VAR_TOKEN (for example, static strings).
}
}, this);
// If extendsHasVar == true, then we know {% extends %} is not using a string literal, thus we can't
// compile until render is called, so we return false.
if (extendsHasVar) {
return false;
}
if (this.parent && this.parent.tokens) {
this.tokens = preservedTokens.concat(this.parent.tokens);
}
}
}
exports.compile = function compile(indent, context, template) {
var code = '',
wrappedInMethod,
blockname,
parentBlock;
indent = indent || '';
// Template parameter is optional (not used at the top-level), initialize
if (this.type === TEMPLATE) {
template = this;
}
// Initialize blocks
if (!this.blocks) {
this.blocks = {};
}
// Precompile step - process block inheritence into true token hierarchy
if (precompile.call(this, indent, context) === false) {
return false;
}
// If this is not a template then just iterate through its tokens
_.each(this.tokens, function (token, index) {
var name, key, args, prev, next;
if (typeof token === 'string') {
prev = this.tokens[index - 1];
next = this.tokens[index + 1];
if (prev && prev.strip && prev.strip.after) {
token = token.replace(/^\s+/, '');
}
if (next && next.strip && next.strip.before) {
token = token.replace(/\s+$/, '');
}
code += '_output += "' + doubleEscape(token).replace(/\n/g, '\\n').replace(/\r/g, '\\r').replace(/"/g, '\\"') + '";\n';
return code;
}
if (typeof token !== 'object') {
return; // Tokens can be either strings or objects
}
if (token.type === VAR_TOKEN) {
name = token.name.replace(/\W/g, '_');
key = (helpers.isLiteral(name)) ? '["' + name + '"]' : '.' + name;
args = (token.args && token.args.length) ? token.args : '';
code += 'if (typeof _context !== "undefined" && typeof _context' + key + ' === "function") {\n';
wrappedInMethod = helpers.wrapMethod('', { name: name, args: args }, '_context');
code += ' _output = (typeof _output === "undefined") ? ' + wrappedInMethod + ': _output + ' + wrappedInMethod + ';\n';
if (helpers.isValidName(name)) {
code += '} else if (typeof ' + name + ' === "function") {\n';
wrappedInMethod = helpers.wrapMethod('', { name: name, args: args });
code += ' _output = (typeof _output === "undefined") ? ' + wrappedInMethod + ': _output + ' + wrappedInMethod + ';\n';
}
code += '} else {\n';
code += helpers.setVar('__' + name, token);
code += ' _output = (typeof _output === "undefined") ? __' + name + ': _output + __' + name + ';\n';
code += '}\n';
}
if (token.type !== LOGIC_TOKEN) {
return; // Tokens can be either VAR_TOKEN or LOGIC_TOKEN
}
if (token.name === 'block') {
blockname = token.args[0];
// Sanity check - the template should be in the flat block list.
if (!template.blocks.hasOwnProperty(blockname)) {
throw new Error('Unrecognized nested block. Block \"' + blockname +
'\" at line ' + token.line + ' of \"' + template.id +
'\" is not in template block list.');
}
code += compile.call(template.blocks[token.args[0]], indent + ' ', context, template);
} else if (token.name === 'parent') {
parentBlock = getParentBlock(token);
if (!parentBlock) {
throw new Error('No parent block found for parent tag at line ' +
token.line + '.');
}
code += compile.call(parentBlock, indent + ' ', context);
} else if (token.hasOwnProperty("compile")) {
if (token.strip.start && token.tokens.length && typeof token.tokens[0] === 'string') {
token.tokens[0] = token.tokens[0].replace(/^\s+/, '');
}
if (token.strip.end && token.tokens.length && typeof _.last(token.tokens) === 'string') {
token.tokens[token.tokens.length - 1] = _.last(token.tokens).replace(/\s+$/, '');
}
code += token.compile(indent + ' ', exports);
} else {
code += compile.call(token, indent + ' ', context);
}
}, this);
return code;
};
})(parser);
tags['autoescape'] = (function () {
module = {};
/**
* autoescape
* Special handling hardcoded into the parser to determine whether variable output should be escaped or not
*/
module.exports = function (indent, parser) {
return parser.compile.apply(this, [indent]);
};
module.exports.ends = true;
return module.exports;
})();
tags['block'] = (function () {
module = {};
/**
* block
*/
module.exports = { ends: true };
return module.exports;
})();
tags['else'] = (function () {
module = {};
/**
* else
*/
module.exports = function (indent, parser) {
var last = _.last(this.parent).name,
thisArgs = _.clone(this.args),
ifarg,
args,
out;
if (last === 'for') {
if (thisArgs.length) {
throw new Error('"else" tag cannot accept arguments in the "for" context.');
}
return '} if (__loopLength === 0) {\n';
}
if (last !== 'if') {
throw new Error('Cannot call else tag outside of "if" or "for" context.');
}
ifarg = thisArgs.shift();
args = (helpers.parseIfArgs(thisArgs, parser));
out = '';
if (ifarg) {
out += '} else if (\n';
out += ' (function () {\n';
_.each(args, function (token) {
if (token.hasOwnProperty('preout') && token.preout) {
out += token.preout + '\n';
}
});
out += 'return (\n';
_.each(args, function (token) {
out += token.value + ' ';
});
out += ');\n';
out += ' })()\n';
out += ') {\n';
return out;
}
return indent + '\n} else {\n';
};
return module.exports;
})();
tags['extends'] = (function () {
module = {};
/**
* extends
*/
module.exports = {};
return module.exports;
})();
tags['filter'] = (function () {
module = {};
/**
* filter
*/
module.exports = function (indent, parser) {
var thisArgs = _.clone(this.args),
name = thisArgs.shift(),
args = (thisArgs.length) ? thisArgs.join(', ') : '',
value = '(function () {\n';
value += ' var _output = "";\n';
value += parser.compile.apply(this, [indent + ' ']) + '\n';
value += ' return _output;\n';
value += '})()\n';
return '_output += ' + helpers.wrapFilter(value.replace(/\n/g, ''), { name: name, args: args }) + ';\n';
};
module.exports.ends = true;
return module.exports;
})();
tags['for'] = (function () {
module = {};
/**
* for
*/
module.exports = function (indent, parser) {
var thisArgs = _.clone(this.args),
operand1 = thisArgs[0],
operator = thisArgs[1],
operand2 = parser.parseVariable(thisArgs[2]),
out = '',
loopShared;
indent = indent || '';
if (typeof operator !== 'undefined' && operator !== 'in') {
throw new Error('Invalid syntax in "for" tag');
}
if (!helpers.isValidShortName(operand1)) {
throw new Error('Invalid arguments (' + operand1 + ') passed to "for" tag');
}
if (!helpers.isValidName(operand2.name)) {
throw new Error('Invalid arguments (' + operand2.name + ') passed to "for" tag');
}
operand1 = helpers.escapeVarName(operand1);
loopShared = 'loop.index = __loopIndex + 1;\n' +
'loop.index0 = __loopIndex;\n' +
'loop.revindex = __loopLength - loop.index0;\n' +
'loop.revindex0 = loop.revindex - 1;\n' +
'loop.first = (__loopIndex === 0);\n' +
'loop.last = (__loopIndex === __loopLength - 1);\n' +
'_context["' + operand1 + '"] = __loopIter[loop.key];\n' +
parser.compile.apply(this, [indent + ' ']);
out = '(function () {\n' +
' var loop = {}, __loopKey, __loopIndex = 0, __loopLength = 0, __keys = [],' +
' __ctx_operand = _context["' + operand1 + '"],\n' +
' loop_cycle = function() {\n' +
' var args = _.toArray(arguments), i = loop.index0 % args.length;\n' +
' return args[i];\n' +
' };\n' +
helpers.setVar('__loopIter', operand2) +
' else {\n' +
' return;\n' +
' }\n' +
// Basic for loops are MUCH faster than for...in. Prefer this arrays.
' if (_.isArray(__loopIter)) {\n' +
' __loopIndex = 0; __loopLength = __loopIter.length;\n' +
' for (; __loopIndex < __loopLength; __loopIndex += 1) {\n' +
' loop.key = __loopIndex;\n' +
loopShared +
' }\n' +
' } else if (typeof __loopIter === "object") {\n' +
' __keys = _.keys(__loopIter);\n' +
' __loopLength = __keys.length;\n' +
' __loopIndex = 0;\n' +
' for (; __loopIndex < __loopLength; __loopIndex += 1) {\n' +
' loop.key = __keys[__loopIndex];\n' +
loopShared +
' }\n' +
' }\n' +
' _context["' + operand1 + '"] = __ctx_operand;\n' +
'})();\n';
return out;
};
module.exports.ends = true;
return module.exports;
})();
tags['if'] = (function () {
module = {};
/**
* if
*/
module.exports = function (indent, parser) {
var thisArgs = _.clone(this.args),
args = (helpers.parseIfArgs(thisArgs, parser)),
out = '(function () {\n';
_.each(args, function (token) {
if (token.hasOwnProperty('preout') && token.preout) {
out += token.preout + '\n';
}
});
out += '\nif (\n';
_.each(args, function (token) {
out += token.value + ' ';
});
out += ') {\n';
out += parser.compile.apply(this, [indent + ' ']);
out += '\n}\n';
out += '})();\n';
return out;
};
module.exports.ends = true;
return module.exports;
})();
tags['import'] = (function () {
module = {};
/**
* import
*/
module.exports = function (indent, parser) {
if (this.args.length !== 3) {
}
var thisArgs = _.clone(this.args),
file = thisArgs[0],
as = thisArgs[1],
name = thisArgs[2],
out = '';
if (!helpers.isLiteral(file) && !helpers.isValidName(file)) {
throw new Error('Invalid attempt to import "' + file + '".');
}
if (as !== 'as') {
throw new Error('Invalid syntax {% import "' + file + '" ' + as + ' ' + name + ' %}');
}
out += '_.extend(_context, (function () {\n';
out += 'var _context = {}, __ctx = {}, _output = "";\n' +
helpers.setVar('__template', parser.parseVariable(file)) +
'_this.compileFile(__template).render(__ctx, _parents);\n' +
'_.each(__ctx, function (item, key) {\n' +
' if (typeof item === "function") {\n' +
' _context["' + name + '_" + key] = item;\n' +
' }\n' +
'});\n' +
'return _context;\n';
out += '})());\n';
return out;
};
return module.exports;
})();
tags['include'] = (function () {
module = {};
/**
* include
*/
module.exports = function (indent, parser) {
var args = _.clone(this.args),
template = args.shift(),
context = '_context',
ignore = false,
out = '',
ctx;
indent = indent || '';
if (!helpers.isLiteral(template) && !helpers.isValidName(template)) {
throw new Error('Invalid arguments passed to \'include\' tag.');
}
if (args.length) {
if (_.last(args) === 'only') {
context = '{}';
args.pop();
}
if (args.length > 1 && args[0] === 'ignore' & args[1] === 'missing') {
args.shift();
args.shift();
ignore = true;
}
if (args.length && args[0] !== 'with') {
throw new Error('Invalid arguments passed to \'include\' tag.');
}
if (args[0] === 'with') {
args.shift();
if (!args.length) {
throw new Error('Context for \'include\' tag not provided, but expected after \'with\' token.');
}
ctx = args.shift();
context = '_context["' + ctx + '"] || ' + ctx;
}
}
out = '(function () {\n' +
helpers.setVar('__template', parser.parseVariable(template)) + '\n' +
' var includeContext = ' + context + ';\n';
if (ignore) {
out += 'try {\n';
}
out += ' if (typeof __template === "string") {\n';
out += ' _output += _this.compileFile(__template).render(includeContext, _parents);\n';
out += ' }\n';
if (ignore) {
out += '} catch (e) {}\n';
}
out += '})();\n';
return out;
};
return module.exports;
})();
tags['macro'] = (function () {
module = {};
/**
* macro
*/
module.exports = function (indent, parser) {
var thisArgs = _.clone(this.args),
macro = thisArgs.shift(),
args = '',
out = '';
if (thisArgs.length) {
args = JSON.stringify(thisArgs).replace(/^\[|\'|\"|\]$/g, '');
}
out += '_context.' + macro + ' = function (' + args + ') {\n';
out += ' var _output = "";\n';
out += parser.compile.apply(this, [indent + ' ']);
out += ' return _output;\n';
out += '};\n';
return out;
};
module.exports.ends = true;
return module.exports;
})();
tags['parent'] = (function () {
module = {};
/**
* parent
*/
module.exports = {};
return module.exports;
})();
tags['raw'] = (function () {
module = {};
/**
* raw
*/
module.exports = { ends: true };
return module.exports;
})();
tags['set'] = (function () {
module = {};
/**
* set
*/
module.exports = function (indent, parser) {
var thisArgs = _.clone(this.args),
varname = helpers.escapeVarName(thisArgs.shift(), '_context'),
value;
// remove '='
if (thisArgs.shift() !== '=') {
throw new Error('Invalid token "' + thisArgs[1] + '" in {% set ' + thisArgs[0] + ' %}. Missing "=".');
}
value = thisArgs[0];
if (helpers.isLiteral(value) || (/^\{|^\[/).test(value) || value === 'true' || value === 'false') {
return ' ' + varname + ' = ' + value + ';';
}
value = parser.parseVariable(value);
return ' ' + varname + ' = ' +
'(function () {\n' +
' var _output;\n' +
parser.compile.apply({ tokens: [value] }, [indent]) + '\n' +
' return _output;\n' +
'})();\n';
};
return module.exports;
})();
tags['spaceless'] = (function () {
module = {};
/**
* spaceless
*/
module.exports = function (indent, parser) {
var output = [],
i = this.tokens.length - 1;
for (i; i >= 0; i -= 1) {
this.tokens[i] = this.tokens[i]
.replace(/^\s+/gi, "") // trim leading white-space
.replace(/>\s+</gi, "><") // trim white-space between tags
.replace(/\s+$/gi, ""); // trim trailing white-space
}
output.push(parser.compile.call(this, indent + ' '));
return output.join('');
};
module.exports.ends = true;
return module.exports;
})();
return swig;
})();