From 824a2d9f587ca017fc71b84d835e72f54f9c87c4 Mon Sep 17 00:00:00 2001 From: Marvin Borner Date: Wed, 7 Nov 2018 18:02:36 +0100 Subject: Began rewrite --- node_modules/twig/docs/tests.md | 3567 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 3567 insertions(+) create mode 100644 node_modules/twig/docs/tests.md (limited to 'node_modules/twig/docs/tests.md') diff --git a/node_modules/twig/docs/tests.md b/node_modules/twig/docs/tests.md new file mode 100644 index 0000000..5afa1b7 --- /dev/null +++ b/node_modules/twig/docs/tests.md @@ -0,0 +1,3567 @@ +# TOC + - [Twig.js Blocks ->](#twigjs-blocks--) + - [block function ->](#twigjs-blocks---block-function--) + - [block shorthand ->](#twigjs-blocks---block-shorthand--) + - [Twig.js Control Structures ->](#twigjs-control-structures--) + - [if tag ->](#twigjs-control-structures---if-tag--) + - [for tag ->](#twigjs-control-structures---for-tag--) + - [set tag ->](#twigjs-control-structures---set-tag--) + - [Twig.js Core ->](#twigjs-core--) + - [Key Notation ->](#twigjs-core---key-notation--) + - [Context ->](#twigjs-core---context--) + - [Twig.js Embed ->](#twigjs-embed--) + - [Twig.js Expressions ->](#twigjs-expressions--) + - [Basic Operators ->](#twigjs-expressions---basic-operators--) + - [Comparison Operators ->](#twigjs-expressions---comparison-operators--) + - [Other Operators ->](#twigjs-expressions---other-operators--) + - [Twig.js Extensions ->](#twigjs-extensions--) + - [Twig.js Filters ->](#twigjs-filters--) + - [url_encode ->](#twigjs-filters---url_encode--) + - [json_encode ->](#twigjs-filters---json_encode--) + - [upper ->](#twigjs-filters---upper--) + - [lower ->](#twigjs-filters---lower--) + - [capitalize ->](#twigjs-filters---capitalize--) + - [title ->](#twigjs-filters---title--) + - [length ->](#twigjs-filters---length--) + - [sort ->](#twigjs-filters---sort--) + - [reverse ->](#twigjs-filters---reverse--) + - [keys ->](#twigjs-filters---keys--) + - [merge ->](#twigjs-filters---merge--) + - [join ->](#twigjs-filters---join--) + - [default ->](#twigjs-filters---default--) + - [date ->](#twigjs-filters---date--) + - [replace ->](#twigjs-filters---replace--) + - [format ->](#twigjs-filters---format--) + - [striptags ->](#twigjs-filters---striptags--) + - [escape ->](#twigjs-filters---escape--) + - [e ->](#twigjs-filters---e--) + - [nl2br ->](#twigjs-filters---nl2br--) + - [truncate ->](#twigjs-filters---truncate--) + - [trim ->](#twigjs-filters---trim--) + - [number_format ->](#twigjs-filters---number_format--) + - [slice ->](#twigjs-filters---slice--) + - [abs ->](#twigjs-filters---abs--) + - [first ->](#twigjs-filters---first--) + - [split ->](#twigjs-filters---split--) + - [batch ->](#twigjs-filters---batch--) + - [last ->](#twigjs-filters---last--) + - [raw ->](#twigjs-filters---raw--) + - [round ->](#twigjs-filters---round--) + - [Twig.js Loader ->](#twigjs-loader--) + - [source ->](#twigjs-loader---source--) + - [Twig.js Include ->](#twigjs-include--) + - [Twig.js Functions ->](#twigjs-functions--) + - [Built-in Functions ->](#twigjs-functions---built-in-functions--) + - [range ->](#twigjs-functions---built-in-functions---range--) + - [cycle ->](#twigjs-functions---built-in-functions---cycle--) + - [date ->](#twigjs-functions---built-in-functions---date--) + - [dump ->](#twigjs-functions---built-in-functions---dump--) + - [block ->](#twigjs-functions---built-in-functions---block--) + - [attribute ->](#twigjs-functions---built-in-functions---attribute--) + - [template_from_string ->](#twigjs-functions---built-in-functions---template_from_string--) + - [random ->](#twigjs-functions---built-in-functions---random--) + - [min, max ->](#twigjs-functions---built-in-functions---min-max--) + - [Twig.js Loaders ->](#twigjs-loaders--) + - [custom loader ->](#twigjs-loaders---custom-loader--) + - [Twig.js Macro ->](#twigjs-macro--) + - [Twig.js Namespaces ->](#twigjs-namespaces--) + - [Twig.js Optional Functionality ->](#twigjs-optional-functionality--) + - [Twig.js Parsers ->](#twigjs-parsers--) + - [custom parser ->](#twigjs-parsers---custom-parser--) + - [Twig.js Path ->](#twigjs-path--) + - [relativePath ->](#twigjs-path---relativepath--) + - [url ->](#twigjs-path---relativepath---url--) + - [path ->](#twigjs-path---relativepath---path--) + - [parsePath ->](#twigjs-path---parsepath--) + - [Twig.js Regression Tests ->](#twigjs-regression-tests--) + - [Twig.js Tags ->](#twigjs-tags--) + - [Twig.js Tests ->](#twigjs-tests--) + - [empty test ->](#twigjs-tests---empty-test--) + - [odd test ->](#twigjs-tests---odd-test--) + - [even test ->](#twigjs-tests---even-test--) + - [divisibleby test ->](#twigjs-tests---divisibleby-test--) + - [defined test ->](#twigjs-tests---defined-test--) + - [none test ->](#twigjs-tests---none-test--) + - [sameas test ->](#twigjs-tests---sameas-test--) + - [iterable test ->](#twigjs-tests---iterable-test--) + + + +# Twig.js Blocks -> +should load a parent template and render the default values. + +```js +twig({ + id: 'remote-no-extends', + path: 'test/templates/template.twig', + async: false +}); +// Load the template +twig({ref: 'remote-no-extends'}).render({ }).should.equal( "Default Title - body" ); +``` + +should understand {% endblock title %} syntax. + +```js +twig({ + id: 'endblock-extended-syntax', + path: 'test/templates/blocks-extended-syntax.twig', + async: false +}); +// Load the template +twig({ref: 'endblock-extended-syntax'}).render({ }).should.equal( "This is the only thing." ); +``` + +should load a child template and replace the parent block's content. + +```js +// Test loading a template from a remote endpoint +twig({ + id: 'child-extends', + path: 'test/templates/child.twig', + load: function(template) { + template.render({ base: "template.twig" }).should.equal( "Other Title - child" ); + done(); + } +}); +``` + +should have access to a parent block content. + +```js +// Test loading a template from a remote endpoint +twig({ + id: 'child-parent', + path: 'test/templates/child-parent.twig', + load: function(template) { + template.render({ + base: "template.twig", + inner: ':value' + }).should.equal( "Other Title - body:value:child" ); + done(); + } +}); +``` + +should include blocks from another template for horizontal reuse. + +```js +// Test horizontal reuse +twig({ + id: 'use', + path: 'test/templates/use.twig', + load: function(template) { + // Load the template + template.render({ place: "diner" }).should.equal("Coming soon to a diner near you!" ); + done(); + } +}); +``` + +should allow overriding of included blocks. + +```js +// Test overriding of included blocks +twig({ + id: 'use-override-block', + path: 'test/templates/use-override-block.twig', + load: function(template) { + // Load the template + template.render({ place: "diner" }).should.equal("Sorry, can't come to a diner today." ); + done(); + } +}); +``` + +should allow overriding of included nested blocks. + +```js +// Test overriding of included blocks +twig({ + id: 'use-override-nested-block', + path: 'test/templates/use-override-nested-block.twig', + load: function(template) { + // Load the template + template.render().should.equal("parent:new-child1:new-child2"); + done(); + } +}); +``` + +should make the contents of blocks available after they're rendered. + +```js +// Test rendering and loading one block +twig({ + id: 'blocks', + path: 'test/templates/blocks.twig', + load: function(template) { + // Render the template with the blocks parameter + template.render({ place: "block" }, {output: 'blocks'}).msg.should.equal("Coming soon to a block near you!" ); + done(); + } +}); +``` + +should render nested blocks. + +```js +// Test rendering of blocks within blocks +twig({ + id: 'blocks-nested', + path: 'test/templates/blocks-nested.twig', + load: function(template) { + template.render({ }).should.equal( "parent:child" ) + done(); + } +}) +``` + +should render extended nested blocks. + +```js +// Test rendering of blocks within blocks +twig({ + id: 'child-blocks-nested', + path: 'test/templates/child-blocks-nested.twig', + load: function(template) { + template.render({ base: "template.twig" }).should.equal( "Default Title - parent:child" ); + done(); + } +}) +``` + +should be able to extend to a absolute template path. + +```js +// Test loading a template from a remote endpoint +twig({ + base: 'test/templates', + path: 'test/templates/a/child.twig', + load: function(template) { + template.render({ base: "b/template.twig" }).should.equal( "Other Title - child" ); + done(); + } +}); +``` + +should extends blocks inline. + +```js +twig({ + id: 'inline-parent-template', + data: 'Title: {% block title %}parent{% endblock %}' +}); +twig({ + allowInlineIncludes: true, + data: '{% extends "inline-parent-template" %}{% block title %}child{% endblock %}' +}).render().should.equal("Title: child"); +``` + + +## block function -> +should render block content from an included block. + +```js +twig({ + path: 'test/templates/block-function.twig', + load: function(template) { + template.render({ + base: "block-function-parent.twig", + val: "abcd" + }) + .should.equal( "Child content = abcd / Result: Child content = abcd" ); + done(); + } +}) +``` + +should render block content from a parent block. + +```js +twig({ + path: 'test/templates/block-parent.twig', + load: function(template) { + template.render({ + base: "block-function-parent.twig" + }) + .should.equal( "parent block / Result: parent block" ); + done(); + } +}) +``` + +should render block content with outer context. + +```js +twig({ + path: 'test/templates/block-outer-context.twig', + load: function(template) { + template.render({ + base: "block-outer-context.twig", + items: ["twig", "js", "rocks"] + }) + .should.equal( "Hello twig!Hello js!Hello rocks!twigjsrocks" ); + done(); + } +}) +``` + +should respect changes of the context made before calling the function. + +```js +twig({ + data: '{% set foo = "original" %}{% block test %}{{ foo }}{% endblock %} {% set foo = "changed" %}{{ block("test") }}' +}).render() +.should.equal("original changed"); +``` + + +## block shorthand -> +should render block content using shorthand syntax. + +```js +twig({ + data: '{% set prefix = "shorthand" %}{% block title (prefix ~ " - " ~ block_value)|title %}' +}) +.render({block_value: 'test succeeded'}) +.should.equal('Shorthand - Test Succeeded'); +``` + +should overload blocks from an extended template using shorthand syntax. + +```js +twig({ + allowInlineIncludes: true, + data: '{% extends "child-extends" %}{% block title "New Title" %}{% block body "new body uses the " ~ base ~ " template" %}' +}) +.render({ base: "template.twig" }) +.should.equal( "New Title - new body uses the template.twig template" ); +``` + + +# Twig.js Control Structures -> + +## if tag -> +should parse the contents of the if block if the expression is true. + +```js +var test_template = twig({data: '{% if test %}true{% endif%}'}); +test_template.render({test: true}).should.equal("true" ); +test_template.render({test: false}).should.equal("" ); +``` + +should call the if or else blocks based on the expression result. + +```js +var test_template = twig({data: '{% if test %}true{% endif%}'}); +test_template.render({test: true}).should.equal("true" ); +test_template.render({test: false}).should.equal("" ); +``` + +should support elseif. + +```js +var test_template = twig({data: '{% if test %}1{% elseif other %}2{%else%}3{% endif%}'}); +test_template.render({test: true, other:false}).should.equal("1" ); +test_template.render({test: true, other:true}).should.equal("1" ); +test_template.render({test: false, other:true}).should.equal("2" ); +test_template.render({test: false, other:false}).should.equal("3" ); +``` + +should be able to nest. + +```js +var test_template = twig({data: '{% if test %}{% if test2 %}true{% else %}false{% endif%}{% else %}not{% endif%}'}); +test_template.render({test: true, test2: true}).should.equal("true" ); +test_template.render({test: true, test2: false}).should.equal("false" ); +test_template.render({test: false, test2: true}).should.equal("not" ); +test_template.render({test: false, test2: false}).should.equal("not" ); +``` + +should support newlines in if statement. + +```js +var test_template = twig({data: '{% if test or\r\nother %}true{% endif%}'}); +test_template.render({test: true, other: false}).should.equal("true" ); +test_template.render({test: false, other: false}).should.equal("" ); +``` + + +## for tag -> +should provide value only for array input. + +```js +var test_template = twig({data: '{% for value in test %}{{ value }}{% endfor %}'}); +test_template.render({test: [1,2,3,4]}).should.equal("1234" ); +test_template.render({test: []}).should.equal("" ); +``` + +should provide both key and value for array input. + +```js +var test_template = twig({data: '{% for key,value in test %}{{key}}:{{ value }}{% endfor %}'}); +test_template.render({test: [1,2,3,4]}).should.equal("0:11:22:33:4" ); +test_template.render({test: []}).should.equal("" ); +``` + +should provide value only for object input. + +```js +var test_template = twig({data: '{% for value in test %}{{ value }}{% endfor %}'}); +test_template.render({test: {one: 1, two: 2, three: 3}}).should.equal("123" ); +test_template.render({test: {}}).should.equal("" ); +``` + +should provide both key and value for object input. + +```js +var test_template = twig({data: '{% for key, value in test %}{{key}}:{{ value }}{% endfor %}'}); +test_template.render({test: {one: 1, two: 2, three: 3}}).should.equal("one:1two:2three:3" ); +test_template.render({test: {}}).should.equal("" ); +``` + +should support else if the input is empty. + +```js +var test_template = twig({data: '{% for key,value in test %}{{ value }}{% else %}else{% endfor %}'}); +test_template.render({test: [1,2,3,4]}).should.equal("1234" ); +test_template.render({test: []}).should.equal("else" ); +``` + +should be able to nest. + +```js +var test_template = twig({data: '{% for key,list in test %}{% for val in list %}{{ val }}{%endfor %}.{% else %}else{% endfor %}'}); +test_template.render({test: [[1,2],[3,4],[5,6]]}).should.equal("12.34.56." ); +test_template.render({test: []}).should.equal("else" ); +``` + +should have a loop context item available for arrays. + +```js +var test_template = twig({data: '{% for key,value in test %}{{ loop.index }}{% endfor %}'}); +test_template.render({test: [1,2,3,4]}).should.equal("1234" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.index0 }}{% endfor %}'}); +test_template.render({test: [1,2,3,4]}).should.equal("0123" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.revindex }}{% endfor %}'}); +test_template.render({test: [1,2,3,4]}).should.equal("4321" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.revindex0 }}{% endfor %}'}); +test_template.render({test: [1,2,3,4]}).should.equal("3210" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.length }}{% endfor %}'}); +test_template.render({test: [1,2,3,4]}).should.equal("4444" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.first }}{% endfor %}'}); +test_template.render({test: [1,2,3,4]}).should.equal("truefalsefalsefalse" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.last }}{% endfor %}'}); +test_template.render({test: [1,2,3,4]}).should.equal("falsefalsefalsetrue" ); +``` + +should have a loop context item available for objects. + +```js +var test_template = twig({data: '{% for key,value in test %}{{ loop.index }}{% endfor %}'}); +test_template.render({test: {a:1,b:2,c:3,d:4}}).should.equal("1234" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.index0 }}{% endfor %}'}); +test_template.render({test: {a:1,b:2,c:3,d:4}}).should.equal("0123" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.revindex }}{% endfor %}'}); +test_template.render({test: {a:1,b:2,c:3,d:4}}).should.equal("4321" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.revindex0 }}{% endfor %}'}); +test_template.render({test: {a:1,b:2,c:3,d:4}}).should.equal("3210" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.length }}{% endfor %}'}); +test_template.render({test: {a:1,b:2,c:3,d:4}}).should.equal("4444" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.first }}{% endfor %}'}); +test_template.render({test: {a:1,b:2,c:3,d:4}}).should.equal("truefalsefalsefalse" ); +test_template = twig({data: '{% for key,value in test %}{{ loop.last }}{% endfor %}'}); +test_template.render({test: {a:1,b:2,c:3,d:4}}).should.equal("falsefalsefalsetrue" ); +``` + +should have a loop context item available in child loops objects. + +```js +var test_template = twig({data: '{% for value in test %}{% for value in inner %}({{ loop.parent.loop.index }},{{ loop.index }}){% endfor %}{% endfor %}'}); +test_template.render({test: {a:1,b:2}, inner:[1,2,3]}).should.equal("(1,1)(1,2)(1,3)(2,1)(2,2)(2,3)"); +``` + +should support conditionals on for loops. + +```js +var test_template = twig({data: '{% for value in test if false %}{{ value }},{% endfor %}'}); +test_template.render({test: ["one", "two", "a", "b", "other"]}).should.equal(""); +test_template = twig({data: '{% for value in test if true %}{{ value }}{% endfor %}'}); +test_template.render({test: ["a", "s", "d", "f"]}).should.equal("asdf"); +test_template = twig({data: '{% for value in test if value|length > 2 %}{{ value }},{% endfor %}'}); +test_template.render({test: ["one", "two", "a", "b", "other"]}).should.equal("one,two,other,"); +test_template = twig({data: '{% for key,item in test if item.show %}{{key}}:{{ item.value }},{% endfor %}'}); +test_template.render({test: { + a: {show:true, value: "one"}, + b: {show:false, value: "two"}, + c: {show:true, value: "three"}}}).should.equal("a:one,c:three,"); +``` + + +## set tag -> +should not set the global context from within a for loop. + +```js +var test_template = twig({data: '{% for value in [1] %}{% set foo="right" %}{% endfor %}{{ foo }}'}); +test_template.render().should.equal(""); +``` + +should set the global context from within a for loop when the variable is initialized outside of the loop. + +```js +var test_template = twig({data: '{% set foo="wrong" %}{% for value in [1] %}{% set foo="right" %}{% endfor %}{{ foo }}'}); +test_template.render().should.equal("right"); +``` + +should set the global context from within a nested for loop when the variable is initialized outside of the loop. + +```js +var test_template = twig({data: '{% set k = 0 %}{% for i in 0..2 %}{% for j in 0..2 %}{{ k }}{% set k = k + 1 %}{% endfor %}{% endfor %}'}); +test_template.render().should.equal("012345678"); +``` + + +# Twig.js Core -> +should save and load a template by reference. + +```js +// Define and save a template + twig({ + id: 'test', + data: '{{ "test" }}' + }); + // Load and render the template + twig({ref: 'test'}).render() + .should.equal("test"); +``` + +should ignore comments. + +```js +twig({data: 'good {# comment #}morning'}).render().should.equal("good morning"); +twig({data: 'good{#comment#}morning'}).render().should.equal("goodmorning"); +``` + +should ignore output tags within comments. + +```js +twig({data: 'good {# {{ "Hello" }} #}morning'}).render().should.equal("good morning"); +twig({data: 'good{#c}}om{{m{{ent#}morning'}).render().should.equal("goodmorning"); +``` + +should ignore logic tags within comments. + +```js +twig({data: 'test {# {% bad syntax if not in comment %} #}test'}).render().should.equal("test test"); +twig({data: '{##}{##}test{# %}}}%}%{%{{% #}pass'}).render().should.equal("testpass"); +``` + +should ignore quotation marks within comments. + +```js +twig({data: "good {# don't stop #}morning"}).render().should.equal("good morning"); +twig({data: 'good{#"dont stop"#}morning'}).render().should.equal("goodmorning"); +twig({data: 'good {# "don\'t stop" #}morning'}).render().should.equal("good morning"); +twig({data: 'good{#"\'#}morning'}).render().should.equal("goodmorning"); +twig({data: 'good {#"\'"\'"\'#} day'}).render().should.equal("good day"); +twig({data: "a {# ' #}b{# ' #} c"}).render().should.equal("a b c"); +``` + +should be able to parse output tags with tag ends in strings. + +```js +// Really all we care about here is not throwing exceptions. +twig({data: '{{ "test" }}'}).render().should.equal("test"); +twig({data: '{{ " }} " }}'}).render().should.equal(" }} "); +twig({data: '{{ " \\"}} " }}'}).render().should.equal(' "}} '); +twig({data: "{{ ' }} ' }}"}).render().should.equal(" }} "); +twig({data: "{{ ' \\'}} ' }}"}).render().should.equal(" '}} "); +twig({data: '{{ " \'}} " }}'}).render().should.equal(" '}} "); +twig({data: "{{ ' \"}} ' }}"}).render().should.equal(' "}} '); +``` + +should be able to parse whitespace control output tags. + +```js +twig({data: ' {{- "test" -}}'}).render().should.equal("test"); +twig({data: ' {{- "test" -}} '}).render().should.equal("test"); +twig({data: '\n{{- "test" -}}'}).render().should.equal("test"); +twig({data: '{{- "test" -}}\n'}).render().should.equal("test"); +twig({data: '\n{{- "test" -}}\n'}).render().should.equal("test"); +twig({data: '\t{{- "test" -}}\t'}).render().should.equal("test"); +twig({data: '\n\t{{- "test" -}}\n\t'}).render().should.equal("test"); +twig({data: '123\n\t{{- "test" -}}\n\t456'}).render().should.equal("123test456"); +twig({data: '\n{{- orp -}}\n'}).render({ orp: "test"}).should.equal("test"); +twig({data: '\n{{- [1,2 ,1+2 ] -}}\n'}).render().should.equal("1,2,3"); +twig({data: ' {{- "test" -}} {{- "test" -}}'}).render().should.equal("testtest"); +twig({data: '{{ "test" }} {{- "test" -}}'}).render().should.equal("testtest"); +twig({data: '{{- "test" -}} {{ "test" }}'}).render().should.equal("testtest"); +twig({data: '<>{{- "test" -}}<>'}).render().should.equal("<>test<>"); +``` + +should be able to parse mismatched opening whitespace control output tags. + +```js +twig({data: ' {{- "test" }}'}).render().should.equal("test"); +twig({data: '{{- "test" }}\n'}).render().should.equal("test\n"); +twig({data: '\t{{- "test" }}\t'}).render().should.equal("test\t"); +twig({data: '123\n\t{{- "test" }}\n\t456'}).render().should.equal("123test\n\t456"); +twig({data: '\n{{- [1,2 ,1+2 ] }}\n'}).render().should.equal("1,2,3\n"); +twig({data: ' {{- "test" }} {{- "test" }}'}).render().should.equal("testtest"); +twig({data: '{{ "test" }} {{- "test" }}'}).render().should.equal("testtest"); +twig({data: ' {{- "test" }} {{ "test" }}'}).render().should.equal("test test"); +twig({data: ' {{- "test" }} {{- "test" -}}'}).render().should.equal("testtest"); +twig({data: '<>{{- "test" }}'}).render().should.equal("<>test"); +``` + +should be able to parse mismatched closing whitespace control output tags. + +```js +twig({data: ' {{ "test" -}}'}).render().should.equal(" test"); +twig({data: '\n{{ "test" -}}\n'}).render().should.equal("\ntest"); +twig({data: '\t{{ "test" -}}\t'}).render().should.equal("\ttest"); +twig({data: '123\n\t{{ "test" -}}\n\t456'}).render().should.equal("123\n\ttest456"); +twig({data: '\n{{ [1,2 ,1+2 ] -}}\n'}).render().should.equal("\n1,2,3"); +twig({data: ' {{ "test" -}} {{ "test" -}}'}).render().should.equal(" testtest"); +twig({data: '{{ "test" }} {{ "test" -}} '}).render().should.equal("test test"); +twig({data: ' {{ "test" -}} {{ "test" }} '}).render().should.equal(" testtest "); +twig({data: ' {{ "test" -}} {{- "test" -}}'}).render().should.equal(" testtest"); +twig({data: '{{ "test" -}}<>'}).render().should.equal("test<>"); +``` + +should be able to parse whitespace control logic tags. + +```js +// Newlines directly after logic tokens are ignored +// So use double newlines +twig({data: '{%- if true -%}{{ "test" }}{% endif %}'}).render().should.equal("test"); +twig({data: '{%- if true -%}{{ "test" }}{%- endif -%}'}).render().should.equal("test"); +twig({data: ' {%- if true -%} {{ "test" }}{% endif %}'}).render().should.equal("test"); +twig({data: '\n{%- if true -%}\n\n{{ "test" }}{% endif %}'}).render().should.equal("test"); +twig({data: '\n\t{%- if true -%}\n\n\t{{ "test" }}{% endif %}'}).render().should.equal("test"); +twig({data: '123\n\t{%- if true -%}\n\n\t{{ "test" }}{% endif %}456'}).render().should.equal("123test456"); +twig({data: '\n\t{%- if true -%}\n\n\t{{ [1,2 ,1+2 ] }}{% endif %}'}).render().should.equal("1,2,3"); +twig({data: '<>{%- if true -%}test{% endif %}<>'}).render().should.equal("<>test<>"); +``` + +should be able to parse mismatched opening whitespace control logic tags. + +```js +twig({data: '{%- if true %}{{ "test" }}{% endif %}'}).render().should.equal("test"); +twig({data: '{%- if true %}{{ "test" }}{% endif %}'}).render().should.equal("test"); +twig({data: ' {% if true %} {{ "test" }}{% endif %}'}).render().should.equal(" test"); +twig({data: ' {%- if true %} {{ "test" }}{% endif %}'}).render().should.equal(" test"); +twig({data: '\n{% if true %}\n\n{{ "test" }}{% endif %}'}).render().should.equal("\n\ntest"); +twig({data: '\n{%- if true %}\n\n{{ "test" }}{% endif %}'}).render().should.equal("\ntest"); +twig({data: '\n\t{%- if true %}\n\n\t{{ "test" }}{% endif %}'}).render().should.equal("\n\ttest"); +twig({data: '123\n\t{%- if true %}\n\n\t{{ "test" }}{% endif %}456'}).render().should.equal("123\n\ttest456"); +twig({data: '\n\t{%- if true %}\n\n\t{{ [1,2 ,1+2 ] }}{% endif %}'}).render().should.equal("\n\t1,2,3"); +twig({data: '<>{%- if true %}test{% endif %}'}).render().should.equal("<>test"); +``` + +should be able to parse mismatched closing whitespace control logic tags. + +```js +twig({data: '{% if true %}{{ "test" }}{% endif %}'}).render().should.equal("test"); +twig({data: '{% if true -%} {{ "test" }}{% endif %}'}).render().should.equal("test"); +twig({data: ' {% if true -%} {{ "test" }}{% endif %}'}).render().should.equal(" test"); +twig({data: ' {% if true -%} {{ "test" }}{% endif %}'}).render().should.equal(" test"); +twig({data: '\n{% if true %}\n\n{{ "test" }}{% endif %}'}).render().should.equal("\n\ntest"); +twig({data: '\n{% if true -%}\n\n{{ "test" }}{% endif %}'}).render().should.equal("\ntest"); +twig({data: '\n\t{% if true -%}\n\n\t{{ "test" }}{% endif %}'}).render().should.equal("\n\ttest"); +twig({data: '123\n\t{% if true -%}\n\n\t{{ "test" }}{% endif %}456'}).render().should.equal("123\n\ttest456"); +twig({data: '\n\t{% if true -%}\n\n\t{{ [1,2 ,1+2 ] }}{% endif %}'}).render().should.equal("\n\t1,2,3"); +twig({data: '{% if true -%}<>test{% endif %}'}).render().should.equal("<>test"); +``` + +should be able to output numbers. + +```js +twig({data: '{{ 12 }}'}).render().should.equal( "12" ); +twig({data: '{{ 12.64 }}'}).render().should.equal( "12.64" ); +twig({data: '{{ 0.64 }}'}).render().should.equal("0.64" ); +``` + +should be able to output booleans. + +```js +twig({data: '{{ true }}'}).render().should.equal( "true" ); +twig({data: '{{ false }}'}).render().should.equal( "false" ); +``` + +should be able to output strings. + +```js +twig({data: '{{ "double" }}'}).render().should.equal("double"); +twig({data: "{{ 'single' }}"}).render().should.equal('single'); +twig({data: '{{ "dou\'ble" }}'}).render().should.equal("dou'ble"); +twig({data: "{{ 'sin\"gle' }}"}).render().should.equal('sin"gle'); +twig({data: '{{ "dou\\"ble" }}'}).render().should.equal("dou\"ble"); +twig({data: "{{ 'sin\\'gle' }}"}).render().should.equal("sin'gle"); +``` + +should be able to output strings with newlines. + +```js +twig({data: "{{ 'a\nb\rc\r\nd' }}"}).render().should.equal("a\nb\rc\r\nd"); +``` + +should be able to output arrays. + +```js +twig({data: '{{ [1] }}'}).render().should.equal("1" ); +twig({data: '{{ [1,2 ,3 ] }}'}).render().should.equal("1,2,3" ); +twig({data: '{{ [1,2 ,3 , val ] }}'}).render({val: 4}).should.equal("1,2,3,4" ); +twig({data: '{{ ["[to",\'the\' ,"string]" ] }}'}).render().should.equal('[to,the,string]' ); +twig({data: '{{ ["[to",\'the\' ,"str\\"ing]" ] }}'}).render().should.equal('[to,the,str"ing]' ); +``` + +should be able to output parse expressions in an array. + +```js +twig({data: '{{ [1,2 ,1+2 ] }}'}).render().should.equal("1,2,3" ); +twig({data: '{{ [1,2 ,3 , "-", [4,5, 6] ] }}'}).render({val: 4}).should.equal("1,2,3,-,4,5,6" ); +twig({data: '{{ [a,b ,(1+2) * a ] }}'}).render({a:1,b:2}).should.equal("1,2,3" ); +``` + +should be able to output variables. + +```js +twig({data: '{{ orp }}'}).render({ orp: "test"}).should.equal("test"); +twig({data: '{{ val }}'}).render({ val: function() { + return "test" + }}).should.equal("test"); +``` + +should recognize null. + +```js +twig({data: '{{ null == val }}'}).render({val: null}).should.equal( "true" ); +twig({data: '{{ null == val }}'}).render({val: undefined}).should.equal( "true" ); +twig({data: '{{ null == val }}'}).render({val: "test"}).should.equal( "false" ); +twig({data: '{{ null == val }}'}).render({val: 0}).should.equal( "false" ); +twig({data: '{{ null == val }}'}).render({val: false}).should.equal( "false" ); +``` + +should recognize object literals. + +```js +twig({data: '{% set at = {"foo": "test", bar: "other", 1:"zip"} %}{{ at.foo ~ at.bar ~ at.1 }}'}).render().should.equal( "testotherzip" ); +``` + +should allow newlines in object literals. + +```js +twig({data: '{% set at = {\n"foo": "test",\rbar: "other",\r\n1:"zip"\n} %}{{ at.foo ~ at.bar ~ at.1 }}'}).render().should.equal( "testotherzip" ); +``` + +should recognize null in an object. + +```js +twig({data: '{% set at = {"foo": null} %}{{ at.foo == val }}'}).render({val: null}).should.equal( "true" ); +``` + +should allow int 0 as a key in an object. + +```js +twig({data: '{% set at = {0: "value"} %}{{ at.0 }}'}).render().should.equal( "value" ); +``` + +should support set capture. + +```js +twig({data: '{% set foo %}bar{% endset %}{{foo}}'}).render().should.equal( "bar" ); +``` + +should support raw data. + +```js +twig({ + data: "before {% raw %}{{ test }} {% test2 %} {{{% endraw %} after" +}).render().should.equal( + "before {{ test }} {% test2 %} {{ after" +); +``` + +should support raw data using 'verbatim' tag. + +```js +twig({ + data: "before {% verbatim %}{{ test }} {% test2 %} {{{% endverbatim %} after" +}).render().should.equal( + "before {{ test }} {% test2 %} {{ after" +); +``` + + +## Key Notation -> +should support dot key notation. + +```js +twig({data: '{{ key.value }} {{ key.sub.test }}'}).render({ + key: { + value: "test", + sub: { + test: "value" + } + } +}).should.equal("test value"); +``` + +should support square bracket key notation. + +```js +twig({data: '{{ key["value"] }} {{ key[\'sub\']["test"] }}'}).render({ + key: { + value: "test", + sub: { + test: "value" + } + } +}).should.equal("test value"); +``` + +should support mixed dot and bracket key notation. + +```js +twig({data: '{{ key["value"] }} {{ key.sub[key.value] }} {{ s.t["u"].v["w"] }}'}).render({ + key: { + value: "test", + sub: { + test: "value" + } + }, + s: { t: { u: { v: { w: 'x' } } } } +}).should.equal("test value x" ); +``` + +should support dot key notation after a function. + +```js +var test_template = twig({data: '{{ key.fn().value }}'}); +var output = test_template.render({ + key: { + fn: function() { + return { + value: "test" + } + } + } +}); +output.should.equal("test"); +``` + +should support bracket key notation after a function. + +```js +var test_template = twig({data: '{{ key.fn()["value"] }}'}); +var output = test_template.render({ + key: { + fn: function() { + return { + value: "test 2" + } + } + } +}); +output.should.equal("test 2"); +``` + +should check for getKey methods if a key doesn't exist.. + +```js +twig({data: '{{ obj.value }}'}).render({ + obj: { + getValue: function() { + return "val"; + }, + isValue: function() { + return "not val"; + } + } +}).should.equal("val"); +``` + +should check for isKey methods if a key doesn't exist.. + +```js +twig({data: '{{ obj.value }}'}).render({ + obj: { + isValue: function() { + return "val"; + } + } +}).should.equal("val"); +``` + +should check for getKey methods on prototype objects.. + +```js +var object = { + getValue: function() { + return "val"; + } + }; +function Subobj() {}; +Subobj.prototype = object; +var subobj = new Subobj(); + + twig({data: '{{ obj.value }}'}).render({ + obj: subobj + }).should.equal("val"); +``` + +should return null if a period key doesn't exist.. + +```js +twig({data: '{{ obj.value == null }}'}).render({ + obj: {} +}).should.equal("true"); +``` + +should return null if a bracket key doesn't exist.. + +```js +twig({data: '{{ obj["value"] == null }}'}).render({ + obj: {} +}).should.equal("true"); +``` + + +## Context -> +should be supported. + +```js +twig({data: '{{ _context.value }}'}).render({ + value: "test" +}).should.equal("test"); +``` + +should be an object even if it's not passed. + +```js +twig({data: '{{ _context|json_encode }}'}).render().should.equal("{}"); +``` + +should support {% set %} tag. + +```js +twig({data: '{% set value = "test" %}{{ _context.value }}'}).render().should.equal("test"); +``` + +should work correctly with properties named dynamically. + +```js +twig({data: '{{ _context[key] }}'}).render({ + key: "value", + value: "test" +}).should.equal("test"); +``` + +should not allow to override context using {% set %}. + +```js +twig({data: '{% set _context = "test" %}{{ _context|json_encode }}'}).render().should.equal('{"_context":"test"}'); +twig({data: '{% set _context = "test" %}{{ _context._context }}'}).render().should.equal("test"); +``` + +should support autoescape option. + +```js +twig({ + autoescape: true, + data: '{{ value }}' +}).render({ + value: "&" +}).should.equal('<test>&</test>'); +``` + +should support autoescape option with alternative strategy. + +```js +twig({ + autoescape: 'js', + data: '{{ value }}' +}).render({ + value: "&" +}).should.equal('\\x3Ctest\\x3E\\x26\\x3C\\x2Ftest\\x3E'); +``` + +should autoescape parent() output correctly. + +```js +twig({id: 'parent1', data: '{% block body %}

{{ value }}

{% endblock body %}'}); +twig({ + allowInlineIncludes: true, + autoescape: true, + data: '{% extends "parent1" %}{% block body %}{{ parent() }}{% endblock %}' +}).render({ + value: "&" +}).should.equal('

<test>&</test>

'); +``` + +should use a correct context in the extended template. + +```js +twig({id: 'parent', data: '{% block body %}{{ value }}{% endblock body %}'}); +twig({ + allowInlineIncludes: true, + data: '{% extends "parent" %}{% set value = "test" %}{% block body %}{{ parent() }}{% endblock %}' +}).render().should.equal("test"); +``` + +should use a correct context in the included template. + +```js +twig({id: 'included', data: '{{ value }}\n{% set value = "inc" %}{{ value }}\n'}); +twig({ + allowInlineIncludes: true, + data: '{% set value = "test" %}{% for i in [0, 1] %}{% include "included" %}{% endfor %}{{ value }}' +}).render().should.equal("test\ninc\ntest\ninc\ntest"); +``` + + +# Twig.js Embed -> +it should load embed and render. + +```js +twig({ + id: 'embed', + path: 'test/templates/embed-simple.twig', + async: false +}); +// Load the template +twig({ref: 'embed'}).render({ }).trim().should.equal( ['START', + 'A', + 'new header', + 'base footer', + 'B', + '', + 'A', + 'base header', + 'base footer', + 'extended', + 'B', + '', + 'A', + 'base header', + 'extended', + 'base footer', + 'extended', + 'B', + '', + 'A', + 'Super cool new header', + 'Cool footer', + 'B', + 'END'].join('\n') ); +``` + + +# Twig.js Expressions -> + +## Basic Operators -> +should parse parenthesis. + +```js +var test_template = twig({data: '{{ a - (b + c) }}'}), + d = {a: 10, b: 4, c: 2}, + output = test_template.render(d); +output.should.equal( (d.a - (d.b + d.c)).toString() ); +``` + +should parse nested parenthesis. + +```js +var test_template = twig({data: '{{ a - ((b) + (1 + c)) }}'}), + d = {a: 10, b: 4, c: 2}, + output = test_template.render(d); +output.should.equal( (d.a - (d.b + 1 + d.c)).toString() ); +``` + +should add numbers. + +```js +var test_template = twig({data: '{{ a + b }}'}); +numeric_test_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal( (pair.a + pair.b).toString() ); +}); +``` + +should subtract numbers. + +```js +var test_template = twig({data: '{{ a - b }}'}); +numeric_test_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal( (pair.a - pair.b).toString() ); +}); +``` + +should multiply numbers. + +```js +var test_template = twig({data: '{{ a * b }}'}); +numeric_test_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a * pair.b).toString() ); +}); +``` + +should divide numbers. + +```js +var test_template = twig({data: '{{ a / b }}'}); +numeric_test_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a / pair.b).toString() ); +}); +``` + +should divide numbers and return an int result. + +```js +var test_template = twig({data: '{{ a // b }}'}); +numeric_test_data.forEach(function(pair) { + var output = test_template.render(pair); + // Get expected truncated result + var c = parseInt(pair.a/pair.b); + output.should.equal(c.toString() ); +}); +``` + +should raise numbers to a power. + +```js +var test_template = twig({data: '{{ a ** b }}'}); +var pow_test_data = [ + {a: 2, b:3, c: 8} + , {a: 4, b:.5, c: 2} + , {a: 5, b: 1, c: 5} +]; +pow_test_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal(pair.c.toString() ); +}); +``` + +should concatanate values. + +```js +twig({data: '{{ "test" ~ a }}'}).render({a:1234}).should.equal("test1234"); +twig({data: '{{ a ~ "test" ~ a }}'}).render({a:1234}).should.equal("1234test1234"); +twig({data: '{{ "this" ~ "test" }}'}).render({a:1234}).should.equal("thistest"); +// Test numbers +var test_template = twig({data: '{{ a ~ b }}'}); +numeric_test_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal(pair.a.toString() + pair.b.toString()); +}); +// Test strings +test_template = twig({data: '{{ a ~ b }}'}); +string_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal(pair.a.toString() + pair.b.toString()); +}); +``` + +should concatenate null and undefined values and not throw an exception. + +```js +twig({data: '{{ a ~ b }}'}).render().should.equal(""); +twig({data: '{{ a ~ b }}'}).render({ + a: null, + b: null +}).should.equal(""); +``` + +should handle multiple chained operations. + +```js +var data = {a: 4.5, b: 10, c: 12, d: -0.25, e:0, f: 65, g: 21, h: -0.0002}; +var test_template = twig({data: '{{a/b+c*d-e+f/g*h}}'}); +var output = test_template.render(data); +var expected = data.a / data.b + data.c * data.d - data.e + data.f / data.g * data.h; +output.should.equal(expected.toString()); +``` + +should handle parenthesis in chained operations. + +```js +var data = {a: 4.5, b: 10, c: 12, d: -0.25, e:0, f: 65, g: 21, h: -0.0002}; +var test_template = twig({data: '{{a /(b+c )*d-(e+f)/(g*h)}}'}); +var output = test_template.render(data); +var expected = data.a / (data.b + data.c) * data.d - (data.e + data.f) / (data.g * data.h); +output.should.equal(expected.toString()); +``` + + +## Comparison Operators -> +should support less then. + +```js +var test_template = twig({data: '{{ a < b }}'}); +numeric_test_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a < pair.b).toString() ); +}); +``` + +should support less then or equal. + +```js +var test_template = twig({data: '{{ a <= b }}'}); +numeric_test_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a <= pair.b).toString() ); +}); +``` + +should support greater then. + +```js +var test_template = twig({data: '{{ a > b }}'}); +numeric_test_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a > pair.b).toString() ); +}); +``` + +should support greater then or equal. + +```js +var test_template = twig({data: '{{ a >= b }}'}); +numeric_test_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a >= pair.b).toString() ); +}); +``` + +should support equals. + +```js +var test_template = twig({data: '{{ a == b }}'}); +boolean_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a == pair.b).toString() ); +}); +equality_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a == pair.b).toString() ); +}); +``` + +should support not equals. + +```js +var test_template = twig({data: '{{ a != b }}'}); +boolean_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a != pair.b).toString() ); +}); +equality_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a != pair.b).toString() ); +}); +``` + +should support boolean or. + +```js +var test_template = twig({data: '{{ a or b }}'}); +boolean_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a || pair.b).toString() ); +}); +``` + +should support boolean and. + +```js +var test_template = twig({data: '{{ a and b }}'}); +boolean_data.forEach(function(pair) { + var output = test_template.render(pair); + output.should.equal((pair.a && pair.b).toString() ); +}); +``` + +should support boolean not. + +```js +var test_template = twig({data: '{{ not a }}'}); +test_template.render({a:false}).should.equal(true.toString()); +test_template.render({a:true}).should.equal(false.toString()); +``` + + +## Other Operators -> +should support the ternary operator. + +```js +var test_template = twig({data: '{{ a ? b:c }}'}) + , output_t = test_template.render({a: true, b: "one", c: "two"}) + , output_f = test_template.render({a: false, b: "one", c: "two"}); +output_t.should.equal( "one" ); +output_f.should.equal( "two" ); +``` + +should support the ternary operator with objects in it. + +```js +var test_template2 = twig({data: '{{ (a ? {"a":e+f}:{"a":1}).a }}'}) + , output2 = test_template2.render({a: true, b: false, e: 1, f: 2}); +output2.should.equal( "3" ); +``` + +should support the ternary operator inside objects. + +```js +var test_template2 = twig({data: '{{ {"b" : a or b ? {"a":e+f}:{"a":1} }.b.a }}'}) + , output2 = test_template2.render({a: false, b: false, e: 1, f: 2}); +output2.should.equal( "1" ); +``` + +should support in/containment functionality for arrays. + +```js +var test_template = twig({data: '{{ "a" in ["a", "b", "c"] }}'}); +test_template.render().should.equal(true.toString()); +var test_template = twig({data: '{{ "d" in ["a", "b", "c"] }}'}); +test_template.render().should.equal(false.toString()); +``` + +should support not in/containment functionality for arrays. + +```js +var test_template = twig({data: '{{ "a" not in ["a", "b", "c"] }}'}); +test_template.render().should.equal(false.toString()); +var test_template = twig({data: '{{ "d" not in ["a", "b", "c"] }}'}); +test_template.render().should.equal(true.toString()); +``` + +should support in/containment functionality for strings. + +```js +var test_template = twig({data: '{{ "at" in "hat" }}'}); +test_template.render().should.equal(true.toString()); +var test_template = twig({data: '{{ "d" in "not" }}'}); +test_template.render().should.equal(false.toString()); +``` + +should support not in/containment functionality for strings. + +```js +var test_template = twig({data: '{{ "at" not in "hat" }}'}); +test_template.render().should.equal(false.toString()); +var test_template = twig({data: '{{ "d" not in "not" }}'}); +test_template.render().should.equal(true.toString()); +``` + +should support in/containment functionality for objects. + +```js +var test_template = twig({data: '{{ "value" in {"key" : "value", "2": "other"} }}'}); +test_template.render().should.equal(true.toString()); +var test_template = twig({data: '{{ "d" in {"key_a" : "no"} }}'}); +test_template.render().should.equal(false.toString()); +``` + +should support not in/containment functionality for objects. + +```js +var test_template = twig({data: '{{ "value" not in {"key" : "value", "2": "other"} }}'}); +test_template.render().should.equal(false.toString()); +var test_template = twig({data: '{{ "d" not in {"key_a" : "no"} }}'}); +test_template.render().should.equal(true.toString()); +``` + +should support undefined and null for the in operator. + +```js +var test_template = twig({data: '{{ 0 in undefined }} {{ 0 in null }}'}); +test_template.render().should.equal(' '); +``` + +should support expressions as object keys. + +```js +var test_template; +test_template = twig({data: '{% set a = {(foo): "value"} %}{{ a.bar }}'}); +test_template.render({foo: 'bar'}).should.equal('value'); +test_template = twig({data: '{{ {(foo): "value"}.bar }}'}); +test_template.render({foo: 'bar'}).should.equal('value'); +``` + + +# Twig.js Extensions -> +should be able to extend a meta-type tag. + +```js +var flags = {}; + Twig.extend(function(Twig) { + Twig.exports.extendTag({ + type: "flag", + regex: /^flag\s+(.+)$/, + next: [ ], + open: true, + compile: function (token) { + var expression = token.match[1]; + + // Compile the expression. + token.stack = Twig.expression.compile.apply(this, [{ + type: Twig.expression.type.expression, + value: expression + }]).stack; + + delete token.match; + return token; + }, + parse: function (token, context, chain) { + var name = Twig.expression.parse.apply(this, [token.stack, context]), + output = ''; + + flags[name] = true; + + return { + chain: false, + output: output + }; + } + }); + }); + var template = twig({data:"{% flag 'enabled' %}"}).render(); + flags.enabled.should.equal(true); +``` + +should be able to extend paired tags. + +```js +// demo data + var App = { + user: "john", + users: { + john: {level: "admin"}, + tom: {level: "user"} + } + }; + Twig.extend(function(Twig) { + // example of extending a tag type that would + // restrict content to the specified "level" + Twig.exports.extendTag({ + type: "auth", + regex: /^auth\s+(.+)$/, + next: ["endauth"], // match the type of the end tag + open: true, + compile: function (token) { + var expression = token.match[1]; + + // turn the string expression into tokens. + token.stack = Twig.expression.compile.apply(this, [{ + type: Twig.expression.type.expression, + value: expression + }]).stack; + + delete token.match; + return token; + }, + parse: function (token, context, chain) { + var level = Twig.expression.parse.apply(this, [token.stack, context]), + output = ""; + + if (App.users[App.currentUser].level == level) + { + output = Twig.parse.apply(this, [token.output, context]); + } + + return { + chain: chain, + output: output + }; + } + }); + Twig.exports.extendTag({ + type: "endauth", + regex: /^endauth$/, + next: [ ], + open: false + }); + }); + var template = twig({data:"Welcome{% auth 'admin' %} ADMIN{% endauth %}!"}); + + App.currentUser = "john"; + template.render().should.equal("Welcome ADMIN!"); + + App.currentUser = "tom"; + template.render().should.equal("Welcome!"); +``` + +should be able to extend the same tag twice, replacing it. + +```js +var flags = {}; +Twig.extend(function(Twig) { + Twig.exports.extendTag({ + type: "noop", + regex: /^noop$/, + next: [ ], + open: true, + parse: function (token, context, chain) { + return { + chain: false, + output: "noop1" + }; + } + }); +}); +var result = twig({data:"{% noop %}"}).render(); +result.should.equal("noop1"); +Twig.extend(function(Twig) { + Twig.exports.extendTag({ + type: "noop", + regex: /^noop$/, + next: [ ], + open: true, + parse: function (token, context, chain) { + return { + chain: false, + output: "noop2" + }; + } + }); +}); +var result = twig({data:"{% noop %}"}).render(); +result.should.equal("noop2"); +``` + + +# Twig.js Filters -> +should chain. + +```js +var test_template = twig({data: '{{ ["a", "b", "c"]|keys|reverse }}' }); +test_template.render().should.equal("2,1,0"); +``` + + +## url_encode -> +should encode URLs. + +```js +var test_template = twig({data: '{{ "http://google.com/?q=twig.js"|url_encode() }}' }); +test_template.render().should.equal("http%3A%2F%2Fgoogle.com%2F%3Fq%3Dtwig.js" ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|url_encode() }}' }); +test_template.render().should.equal("" ); +``` + +should handle special characters. + +```js +var data = { "foo": " \\&\"'.,-_?/Ķä€台北[]{}\t\r\n\b\x80" }; +var test_template = twig({data: '{{ foo|url_encode() }}' }); +test_template.render(data).should.equal("%3Cfoo%3E%20%5C%26%22%27.%2C-_%3F%2F%C4%B6%C3%A4%E2%82%AC%E5%8F%B0%E5%8C%97%5B%5D%7B%7D%09%0D%0A%08%C2%80" ); +``` + + +## json_encode -> +should encode strings to json. + +```js +var test_template = twig({data: '{{ test|json_encode }}' }); +test_template.render({test:'value'}).should.equal('"value"' ); +``` + +should encode numbers to json. + +```js +var test_template = twig({data: '{{ test|json_encode }}' }); +test_template.render({test:21}).should.equal('21' ); +``` + +should encode arrays to json. + +```js +var test_template = twig({data: '{{ [1,"b",3]|json_encode }}' }); +test_template.render().should.equal('[1,"b",3]' ); +``` + +should encode objects to json. + +```js +var test_template = twig({data: '{{ {"a":[1,"b",3]}|json_encode }}' }); +test_template.render().should.equal('{"a":[1,"b",3]}' ); +``` + +should retain key order in an object. + +```js +twig({data: '{{ { "foo": 1, "bar": 2, "baz": 3 }|json_encode }}'}).render().should.equal( '{"foo":1,"bar":2,"baz":3}' ); +``` + +should not add additional information to objects. + +```js +twig({data: '{{ { "foo": 1, "bar": [1, 2, 3], "baz": { "a": "a", "b": "b" } }|json_encode }}'}).render().should.equal( '{"foo":1,"bar":[1,2,3],"baz":{"a":"a","b":"b"}}' ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|json_encode }}' }); +test_template.render().should.equal("null" ); +``` + + +## upper -> +should convert text to uppercase. + +```js +var test_template = twig({data: '{{ "hello"|upper }}' }); +test_template.render().should.equal("HELLO" ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|upper }}' }); +test_template.render().should.equal("" ); +``` + + +## lower -> +should convert text to lowercase. + +```js +var test_template = twig({data: '{{ "HELLO"|lower }}' }); +test_template.render().should.equal("hello" ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|lower }}' }); +test_template.render().should.equal("" ); +``` + + +## capitalize -> +should capitalize the first word in a string. + +```js +var test_template = twig({data: '{{ "hello world"|capitalize }}' }); +test_template.render().should.equal("Hello world" ); +var test_template2 = twig({data: '{{ "HELLO WORLD"|capitalize }}' }); +test_template2.render().should.equal("Hello world" ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|capitalize }}' }); +test_template.render().should.equal("" ); +``` + + +## title -> +should capitalize all the words in a string. + +```js +var test_template = twig({data: '{{ "hello world"|title }}' }); +test_template.render().should.equal("Hello World" ); +var test_template2 = twig({data: '{{ "HELLO WORLD"|title }}' }); +test_template2.render().should.equal("Hello World" ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|title }}' }); +test_template.render().should.equal("" ); +``` + + +## length -> +should determine the length of a string. + +```js +var test_template = twig({data: '{{ "test"|length }}' }); +test_template.render().should.equal("4"); +``` + +should determine the length of an array. + +```js +var test_template = twig({data: '{{ [1,2,4,76,"tesrt"]|length }}' }); +test_template.render().should.equal("5"); +``` + +should determine the length of an object. + +```js +var test_template = twig({data: '{{ {"a": "b", "c": "1", "test": "test"}|length }}' }); +test_template.render().should.equal("3"); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|length }}' }); +test_template.render().should.equal("0" ); +``` + + +## sort -> +should sort an array. + +```js +var test_template = twig({data: '{{ [1,5,2,7]|sort }}' }); +test_template.render().should.equal("1,2,5,7" ); +test_template = twig({data: '{{ ["test","abc",2,7]|sort }}' }); +test_template.render().should.equal("2,7,abc,test" ); +``` + +should sort an object. + +```js +var test_template = twig({data: "{% set obj = {'c': 1,'d': 5,'t': 2,'e':7}|sort %}{% for key,value in obj|sort %}{{key}}:{{value}} {%endfor %}" }); +test_template.render().should.equal("c:1 t:2 d:5 e:7 " ); +test_template = twig({data: "{% set obj = {'m':'test','z':'abc','a':2,'y':7} %}{% for key,value in obj|sort %}{{key}}:{{value}} {%endfor %}" }); +test_template.render().should.equal("a:2 y:7 z:abc m:test " ); +test_template = twig({data: "{% set obj = {'z':'abc','a':2,'y':7,'m':'test'} %}{% for key,value in obj|sort %}{{key}}:{{value}} {%endfor %}" }); +test_template.render().should.equal("a:2 y:7 z:abc m:test " ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{% set obj = undef|sort %}{% for key, value in obj|sort %}{{key}}:{{value}}{%endfor%}' }); +test_template.render().should.equal("" ); +``` + + +## reverse -> +should reverse an array. + +```js +var test_template = twig({data: '{{ ["a", "b", "c"]|reverse }}' }); +test_template.render().should.equal("c,b,a" ); +``` + +should reverse an object. + +```js + +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|reverse }}' }); +test_template.render().should.equal("" ); +``` + + +## keys -> +should return the keys of an array. + +```js +var test_template = twig({data: '{{ ["a", "b", "c"]|keys }}' }); +test_template.render().should.equal("0,1,2" ); +``` + +should return the keys of an object. + +```js +var test_template = twig({data: '{{ {"a": 1, "b": 4, "c": 5}|keys }}' }); +test_template.render().should.equal("a,b,c" ); +test_template = twig({data: '{{ {"0":"a", "1":"b", "2":"c"}|keys }}' }); +test_template.render().should.equal("0,1,2" ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|keys }}' }); +test_template.render().should.equal("" ); +``` + + +## merge -> +should merge two objects into an object. + +```js +// Object merging +var test_template = twig({data: '{% set obj= {"a":"test", "b":"1"}|merge({"b":2,"c":3}) %}{% for key in obj|keys|sort %}{{key}}:{{obj[key]}} {%endfor %}' }); +test_template.render().should.equal('a:test b:2 c:3 ' ); +``` + +should merge two arrays into and array. + +```js +// Array merging +var test_template = twig({data: '{% set obj= ["a", "b"]|merge(["c", "d"]) %}{% for key in obj|keys|sort %}{{key}}:{{obj[key]}} {%endfor %}' }); +test_template.render().should.equal('0:a 1:b 2:c 3:d ' ); +``` + +should merge an object and an array into an object. + +```js +// Mixed merging +var test_template = twig({data: '{% set obj= ["a", "b"]|merge({"a": "c", "3":4}, ["c", "d"]) %}{% for key in obj|keys|sort %}{{key}}:{{obj[key]}} {%endfor %}' }); +test_template.render().should.equal('0:a 1:b 3:4 4:c 5:d a:c ' ); +// Mixed merging(2) +test_template = twig({data: '{% set obj= {"1":"a", "a":"b"}|merge(["c", "d"]) %}{% for key in obj|keys %}{{key}}:{{obj[key]}} {%endfor %}' }); +test_template.render().should.equal('1:a a:b 2:c 3:d ' ); +``` + + +## join -> +should join all values in an object. + +```js +var test_template = twig({data: '{{ {"a":"1", "b": "b", "c":test}|join("-") }}' }); +test_template.render({"test": "t"}).should.equal("1-b-t" ); +``` + +should joing all values in an array. + +```js +var test_template = twig({data: '{{ [1,2,4,76]|join }}' }); +test_template.render().should.equal("12476" ); +test_template = twig({data: '{{ [1+ 5,2,4,76]|join("-" ~ ".") }}' }); +test_template.render().should.equal("6-.2-.4-.76" ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|join }}' }); +test_template.render().should.equal("" ); +``` + + +## default -> +should not provide the default value if a key is defined and not empty. + +```js +var test_template = twig({data: '{{ var|default("Not Defined") }}' }); +test_template.render({"var":"value"}).should.equal("value" ); +``` + +should provide a default value if a key is not defined. + +```js +var test_template = twig({data: '{{ var|default("Not Defined") }}' }); +test_template.render().should.equal("Not Defined" ); +``` + +should provide a default value if a value is empty. + +```js +var test_template = twig({data: '{{ ""|default("Empty String") }}' }); +test_template.render().should.equal("Empty String" ); +test_template = twig({data: '{{ var.key|default("Empty Key") }}' }); +test_template.render({'var':{}}).should.equal("Empty Key" ); +``` + +should provide a default value of '' if no parameters are passed and a default key is not defined. + +```js +var test_template = twig({data: '{{ var|default }}' }); +test_template.render().should.equal(""); +``` + +should provide a default value of '' if no parameters are passed and a value is empty. + +```js +var test_template = twig({data: '{{ ""|default }}' }); +test_template.render().should.equal(""); +test_template = twig({data: '{{ var.key|default }}' }); +test_template.render({'var':{}}).should.equal(""); +``` + + +## date -> +should recognize timestamps. + +```js +var template = twig({data: '{{ 27571323556|date("d/m/Y @ H:i:s") }}'}) + , date = new Date(27571323556000); // 13/09/2843 @ 08:59:16 EST +template.render().should.equal( stringDate(date) ); +``` + +should recognize timestamps, when they are passed as string. + +```js +var template = twig({data: '{{ "27571323556"|date("d/m/Y @ H:i:s") }}'}) + , date = new Date(27571323556000); // 13/09/2843 @ 08:59:16 EST +template.render().should.equal( stringDate(date) ); +``` + +should recognize string date formats. + +```js +var template = twig({data: '{{ "Tue Aug 14 08:52:15 +0000 2007"|date("d/m/Y @ H:i:s") }}'}) + , date = new Date(1187081535000); // 14/08/2007 @ 04:52:15 EST +template.render().should.equal( stringDate(date) ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|date("d/m/Y @ H:i:s") }}' }); +var date = new Date(); +test_template.render().should.equal(stringDate(date)); +``` + +should work with no parameters. + +```js +var test_template = twig({data: '{{ 27571323556|date }}' }); +test_template.render().should.equal(twig({data: '{{ 27571323556|date("F j, Y H:i") }}'}).render()); +``` + + +## replace -> +should replace strings provided in a map. + +```js +var template = twig({data: '{{ "I like %this% and %that%. Seriously, I like %this% and %that%."|replace({"%this%": foo, "%that%": "bar"}) }}'}); +template.render({foo: "foo"}).should.equal("I like foo and bar. Seriously, I like foo and bar." ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|replace }}' }); +test_template.render().should.equal("" ); +``` + + +## format -> +should replace formatting tags with parameters. + +```js +var template = twig({data: '{{ "I like %s and %s."|format(foo, "bar") }}'}); +template.render({foo: "foo"}).should.equal("I like foo and bar." ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|format }}' }); +test_template.render().should.equal("" ); +``` + +should handle positive leading sign without padding. + +```js +var template = twig({data: '{{ "I like positive numbers like %+d."|format(123) }}'}); +template.render({foo: "foo"}).should.equal("I like positive numbers like +123." ); +``` + +should handle negative leading sign without padding. + +```js +var template = twig({data: '{{ "I like negative numbers like %+d."|format(-123) }}'}); +template.render({foo: "foo"}).should.equal("I like negative numbers like -123." ); +``` + +should handle positive leading sign with padding zero. + +```js +var template = twig({data: '{{ "I like positive numbers like %+05d."|format(123) }}'}); +template.render({foo: "foo"}).should.equal("I like positive numbers like +0123." ); +``` + +should handle negative leading sign with padding zero. + +```js +var template = twig({data: '{{ "I like negative numbers like %+05d."|format(-123) }}'}); +template.render({foo: "foo"}).should.equal("I like negative numbers like -0123." ); +``` + +should handle positive leading sign with padding space. + +```js +var template = twig({data: '{{ "I like positive numbers like %+5d."|format(123) }}'}); +template.render({foo: "foo"}).should.equal("I like positive numbers like +123." ); +``` + +should handle negative leading sign with padding space. + +```js +var template = twig({data: '{{ "I like negative numbers like %+5d."|format(-123) }}'}); +template.render({foo: "foo"}).should.equal("I like negative numbers like -123." ); +``` + + +## striptags -> +should remove tags from a value. + +```js +var template = twig({data: '{{ "

Test paragraph.

Other text"|striptags }}'}); +template.render().should.equal("Test paragraph. Other text" ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|striptags }}' }); +test_template.render().should.equal("" ); +``` + + +## escape -> +should convert unsafe characters to HTML entities. + +```js +var template = twig({data: '{{ "

Test paragraph.

Other text"|escape }}'}); +template.render().should.equal("<p>Test paragraph.</p><!-- Comment --> <a href='#fragment\'>Other text</a>" ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|escape }}' }); +test_template.render().should.equal("" ); +``` + +should not escape twice if autoescape is on. + +```js +twig({ + autoescape: true, + data: '{{ value|escape }}' +}).render({ + value: "&" +}).should.equal('<test>&</test>'); +``` + +should handle the strategy parameter. + +```js +var data = { "foo": " \\&\"'.,-_?/Ķä€台北[]{}\t\r\n\b\x80" }; +var test_template = twig({data: 'Default: {{ foo|escape }}' }); +test_template.render(data).should.equal("Default: <foo> \\&"'.,-_?/Ķä€台北[]{}\t\r\n\b\x80" ); +var test_template = twig({data: 'html: {{ foo|escape("html") }}' }); +test_template.render(data).should.equal("html: <foo> \\&"'.,-_?/Ķä€台北[]{}\t\r\n\b\x80" ); +var test_template = twig({data: 'js: {{ foo|escape("js") }}' }); +test_template.render(data).should.equal("js: \\x3Cfoo\\x3E\\x20\\x5C\\x26\\x22\\x27.,\\x2D_\\x3F\\x2F\\u0136\\u00E4\\u20AC\\u53F0\\u5317\\x5B\\x5D\\x7B\\x7D\\x9\\xD\\xA\\x8\\u0080" ); +var test_template = twig({data: 'css: {{ foo|escape("css") }}' }); +test_template.render(data).should.equal("css: \\3C foo\\3E \\20 \\5C \\26 \\22 \\27 \\2E \\2C \\2D \\5F \\3F \\2F \\136 \\E4 \\20AC \\53F0 \\5317 \\5B \\5D \\7B \\7D \\9 \\D \\A \\8 \\80 " ); +var test_template = twig({data: 'url: {{ foo|escape("url") }}' }); +test_template.render(data).should.equal("url: %3Cfoo%3E%20%5C%26%22%27.%2C-_%3F%2F%C4%B6%C3%A4%E2%82%AC%E5%8F%B0%E5%8C%97%5B%5D%7B%7D%09%0D%0A%08%C2%80" ); +var test_template = twig({data: 'html_attr: {{ foo|escape("html_attr") }}' }); +test_template.render(data).should.equal("html_attr: <foo> \&"'.,-_?/Ķä€台北[]{} �€" ); +``` + +should escape strategy != 'html' if autoescape is on. + +```js +twig({ + autoescape: true, + data: '{{ value|escape("js") }}' +}).render({ + value: "&" +}).should.equal('\\x3Ctest\\x3E\\x26\\x3C\\x2Ftest\\x3E'); +``` + +should not escape twice if autoescape is not html. + +```js +twig({ + autoescape: 'js', + data: '{{ value|escape("js") }}' +}).render({ + value: "&" +}).should.equal('\\x3Ctest\\x3E\\x26\\x3C\\x2Ftest\\x3E'); +``` + +should escape twice if escape strategy is different from autoescape option. + +```js +twig({ + autoescape: 'css', + data: '{{ value|escape("js") }}\n{{ value|escape }}' +}).render({ + value: "&" +}).should.equal('\\5C x3Ctest\\5C x3E\\5C x26\\5C x3C\\5C x2Ftest\\5C x3E\n\\26 lt\\3B test\\26 gt\\3B \\26 amp\\3B \\26 lt\\3B \\2F test\\26 gt\\3B '); +``` + + +## e -> +should alias escape function with e. + +```js +var template = twig({data: '{{ "

Test paragraph.

Other text"|e }}'}); +template.render().should.equal("<p>Test paragraph.</p><!-- Comment --> <a href='#fragment\'>Other text</a>" ); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|e }}' }); +test_template.render().should.equal("" ); +``` + +should not escape twice if autoescape is on. + +```js +var template = twig({ + autoescape: true, + data: '{{ value|e }}' +}); +template.render({ + value: "&" +}).should.equal('<test>&</test>'); +``` + + +## nl2br -> +should convert newlines into html breaks. + +```js +var template = twig({data: '{{ test|nl2br }}'}); +template.render({ test: 'Line 1\r\nLine 2\nLine 3\rLine 4\n\n' }) + .should.equal("Line 1
\nLine 2
\nLine 3
\nLine 4
\n
\n"); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|nl2br }}' }); +test_template.render().should.equal("" ); +``` + +should not escape br tags if autoescape is on. + +```js +twig({ + autoescape: true, + data: '{{ test|nl2br }}' +}).render({ + test: 'Line 1\nLine2' +}).should.equal("<test>Line 1
\nLine2</test>"); +``` + + +## truncate -> +should truncate string to default size(20) and add default separator. + +```js +var template = twig({data: '{{ test|truncate }}'}); +template.render({test: '01234567890123456789012345678901234567890123456789'}).should.equal("012345678901234567890123456789..."); +``` + +should truncate string to custom size(10) and add default separator. + +```js +var template = twig({data: '{{ test|truncate(10) }}'}); +template.render({test: '01234567890123456789012345678901234567890123456789'}).should.equal("0123456789..."); +``` + +should truncate string to custom size(15) with preserve and add default separator. + +```js +var template = twig({data: '{{ test|truncate(15, true) }}'}); +template.render({test: '0123456789 0123456789 0123456789 0123456789 0123456789'}).should.equal("0123456789 0123456789..."); +``` + +should truncate string to custom size(15) with preserve and add custom(*) separator. + +```js +var template = twig({data: '{{ test|truncate(15, true, "*") }}'}); +template.render({test: '0123456789 0123456789 0123456789 0123456789 0123456789'}).should.equal("0123456789 0123456789*"); +``` + + +## trim -> +should trim whitespace from strings. + +```js +var template = twig({data: '{{ test|trim }}'}); +template.render({ test: '\r\n Test\n ' }).should.equal("Test"); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|trim }}' }); +test_template.render().should.equal("" ); +``` + + +## number_format -> +should round to nearest integer if no parameters. + +```js +var template = twig({data: '{{ 1234.56|number_format }}'}); +template.render().should.equal("1,235"); +``` + +should have customizable precision. + +```js +var template = twig({data: '{{ 1234.567890123|number_format(4) }}'}); +template.render().should.equal("1,234.5679"); +``` + +should have a customizable decimal seperator. + +```js +var template = twig({data: '{{ 1234.567890123|number_format(2,",") }}'}); +template.render().should.equal("1,234,57"); +``` + +should have a customizable thousands seperator. + +```js +var template = twig({data: '{{ 1234.5678|number_format(2,","," ") }}'}); +template.render().should.equal("1 234,57"); +``` + +should handle blank seperators. + +```js +var template = twig({data: '{{ 1234.5678|number_format(2,"","") }}'}); +template.render().should.equal("123457"); +``` + +should handle undefined. + +```js +var test_template = twig({data: '{{ undef|number_format }}' }); +test_template.render().should.equal("0"); +``` + + +## slice -> +should slice a string. + +```js +var test_template = twig({data: "{{ '12345'|slice(1, 2) }}" }); +test_template.render().should.equal("23"); +``` + +should slice a string to the end. + +```js +var test_template = twig({data: "{{ '12345'|slice(2) }}" }); +test_template.render().should.equal("345"); +``` + +should slice a string from the start. + +```js +var test_template = twig({data: "{{ '12345'|slice(null, 2) }}" }); +test_template.render().should.equal("12"); +``` + +should slice a string from a negative offset. + +```js +var test_template = twig({data: "{{ '12345'|slice(-2, 1) }}" }); +test_template.render().should.equal("4"); +``` + +should slice a string from a negative offset to end of string. + +```js +var test_template = twig({data: "{{ '12345'|slice(-2) }}" }); +test_template.render().should.equal("45"); +``` + +should slice an array. + +```js +var test_template = twig({data: "{{ [1, 2, 3, 4, 5]|slice(1, 2)|join(',') }}" }); +test_template.render().should.equal("2,3"); +``` + +should slice an array to the end. + +```js +var test_template = twig({data: "{{ [1, 2, 3, 4, 5]|slice(2)|join(',') }}" }); +test_template.render().should.equal("3,4,5"); +``` + +should slice an array from the start. + +```js +var test_template = twig({data: "{{ [1, 2, 3, 4, 5]|slice(null, 2)|join(',') }}" }); +test_template.render().should.equal("1,2"); +``` + +should slice an array from a negative offset. + +```js +var test_template = twig({data: "{{ [1, 2, 3, 4, 5]|slice(-2, 1)|join(',') }}" }); +test_template.render().should.equal("4"); +``` + +should slice an array from a negative offset to the end of the array. + +```js +var test_template = twig({data: "{{ [1, 2, 3, 4, 5]|slice(-4)|join(',') }}" }); +test_template.render().should.equal("2,3,4,5"); +``` + + +## abs -> +should convert negative numbers to its absolute value. + +```js +var test_template = twig({data: "{{ '-7.365'|abs }}"}); +test_template.render().should.equal("7.365"); +``` + +should not alter absolute numbers. + +```js +var test_template = twig({data: "{{ 95|abs }}"}); +test_template.render().should.equal("95"); +``` + + +## first -> +should return first item in array. + +```js +var test_template = twig({data: "{{ ['a', 'b', 'c', 'd']|first }}"}); +test_template.render().should.equal("a"); +``` + +should return first member of object. + +```js +var test_template = twig({data: "{{ { item1: 'a', item2: 'b', item3: 'c', item4: 'd'}|first }}"}); +test_template.render().should.equal("a"); +``` + +should not fail when passed empty obj, arr or str. + +```js +var test_template = twig({data: "{{ {}|first }}"}); +test_template.render().should.equal(""); +var test_template = twig({data: "{{ []|first }}"}); +test_template.render().should.equal(""); +var test_template = twig({data: "{{ myemptystr|first }}"}); +test_template.render({myemptystr: ""}).should.equal(""); +``` + +should return first character in string. + +```js +var test_template = twig({data: "{{ 'abcde'|first }}"}); +test_template.render().should.equal("a"); +``` + + +## split -> +should split string with a separator. + +```js +var test_template = twig({data: "{{ 'one-two-three'|split('-') }}"}); +test_template.render().should.equal("one,two,three"); +``` + +should split string with a separator and positive limit. + +```js +var test_template = twig({data: "{{ 'one-two-three-four-five'|split('-', 3) }}"}); +test_template.render().should.equal("one,two,three-four-five"); +``` + +should split string with a separator and negative limit. + +```js +var test_template = twig({data: "{{ 'one-two-three-four-five'|split('-', -2) }}"}); +test_template.render().should.equal("one,two,three"); +``` + +should split with empty separator. + +```js +var test_template = twig({data: "{{ '123'|split('') }}"}); +test_template.render().should.equal("1,2,3"); +``` + +should split with empty separator and limit. + +```js +var test_template = twig({data: "{{ 'aabbcc'|split('', 2) }}"}); +test_template.render().should.equal("aa,bb,cc"); +``` + + +## batch -> +should work with arrays that require filling (with fill specified). + +```js +var test_template = twig({data: "{{ ['a', 'b', 'c', 'd', 'e', 'f', 'g']|batch(3, 'x') }}"}); +test_template.render().should.equal("a,b,c,d,e,f,g,x,x"); +``` + +should work with arrays that require filling (without fill specified). + +```js +var test_template = twig({data: "{{ ['a', 'b', 'c', 'd', 'e', 'f', 'g']|batch(3) }}"}); +test_template.render().should.equal("a,b,c,d,e,f,g"); +``` + +should work with arrays that do not require filling (with fill specified). + +```js +var test_template = twig({data: "{{ ['a', 'b', 'c', 'd', 'e', 'f']|batch(3, 'x') }}"}); +test_template.render().should.equal("a,b,c,d,e,f"); +``` + +should work with arrays that do not require filling (without fill specified). + +```js +var test_template = twig({data: "{{ ['a', 'b', 'c', 'd', 'e', 'f']|batch(3) }}"}); +test_template.render().should.equal("a,b,c,d,e,f"); +``` + +should return an empty result for an empty array. + +```js +var test_template = twig({data: "{{ []|batch(3, 'x') }}"}); +test_template.render().should.equal(""); +``` + + +## last -> +should return last character in string. + +```js +var test_template = twig({data: "{{ 'abcd'|last }}"}); +test_template.render().should.equal("d"); +``` + +should return last item in array. + +```js +var test_template = twig({data: "{{ ['a', 'b', 'c', 'd']|last }}"}); +test_template.render().should.equal("d"); +``` + +should return last item in a sorted object. + +```js +var test_template = twig({data: "{{ {'m':1, 'z':5, 'a':3}|sort|last }}" }); +test_template.render().should.equal("5"); +``` + + +## raw -> +should output the raw value if autoescape is on. + +```js +var template = twig({ + autoescape: true, + data: '{{ value|raw }}' +}); +template.render({ + value: "&" +}).should.equal('&'); +``` + +should output the raw value if autoescape is off. + +```js +var template = twig({ + autoescape: false, + data: '{{ value|raw }}' +}); +template.render({ + value: "&" +}).should.equal('&'); +``` + + +## round -> +should round up (common). + +```js +var test_template = twig({data: "{{ 2.7|round }}"}); +test_template.render().should.equal("3"); +``` + +should round down (common). + +```js +var test_template = twig({data: "{{ 2.1|round }}"}); +test_template.render().should.equal("2"); +``` + +should truncate input when input decimal places exceeds precision (floor). + +```js +var test_template = twig({data: "{{ 2.1234|round(3, 'floor') }}" }); +test_template.render().should.equal("2.123"); +``` + +should round up (ceil). + +```js +var test_template = twig({data: "{{ 2.1|round(0, 'ceil') }}" }); +test_template.render().should.equal("3"); +``` + +should truncate precision when a negative precision is passed (common). + +```js +var test_template = twig({data: "{{ 21.3|round(-1)}}" }); +test_template.render().should.equal("20"); +``` + +should round up and truncate precision when a negative precision is passed (ceil). + +```js +var test_template = twig({data: "{{ 21.3|round(-1, 'ceil')}}" }); +test_template.render().should.equal("30"); +``` + +should round down and truncate precision when a negative precision is passed (floor). + +```js +var test_template = twig({data: "{{ 21.3|round(-1, 'ceil')}}" }); +test_template.render().should.equal("30"); +``` + + +# Twig.js Loader -> +should load a template from the filesystem asynchronously. + +```js +twig({ + id: 'fs-node-async', + path: 'test/templates/test.twig', + load: function(template) { + // Render the template + template.render({ + test: "yes", + flag: true + }).should.equal("Test template = yes\n\nFlag set!"); + done(); + } +}); +``` + +should load a template from the filesystem synchronously. + +```js +var template = twig({ + id: 'fs-node-sync', + path: 'test/templates/test.twig', + async: false +}); +// Render the template +template.render({ + test: "yes", + flag: true +}).should.equal("Test template = yes\n\nFlag set!"); +``` + + +## source -> +should load the non-compiled template source code. + +```js +twig({data: '{{ source("test/templates/source.twig") }}'}) + .render() + .should + .equal('{% if isUserNew == true %}\n Hello {{ name }}\n{% else %}\n Welcome back {{ name }}\n{% endif %}\n') +; +``` + +should indicate if there was a problem loading the template if 'ignore_missing' is false. + +```js +twig({data: '{{ source("test/templates/non-existing-source.twig", false) }}'}) + .render() + .should + .equal('Template "test/templates/non-existing-source.twig" is not defined.') +; +``` + +should NOT indicate if there was a problem loading the template if 'ignore_missing' is true. + +```js +twig({data: '{{ source("test/templates/non-existing-source.twig", true) }}'}) + .render() + .should + .equal('') +; +``` + + +# Twig.js Include -> +should load an included template with no context. + +```js +twig({ + id: 'include', + path: 'test/templates/include.twig', + async: false +}); +// Load the template +twig({ref: 'include'}).render({test: 'tst'}).should.equal( "BeforeTest template = tst\n\nAfter" ); +``` + +should load an included template with additional context. + +```js +twig({ + id: 'include-with', + path: 'test/templates/include-with.twig', + async: false +}); +// Load the template +twig({ref: 'include-with'}).render({test: 'tst'}).should.equal( "template: before,tst-mid-template: after,tst" ); +``` + +should load an included template with only additional context. + +```js +twig({ + id: 'include-only', + path: 'test/templates/include-only.twig', + async: false +}); +// Load the template +twig({ref: 'include-only'}).render({test: 'tst'}).should.equal( "template: before,-mid-template: after," ); +``` + + +# Twig.js Functions -> +should allow you to define a function. + +```js +twig({data: '{{ square(a) }}'}).render({a:4}).should.equal("16"); +``` + +should chain with other expressions. + +```js +twig({data: '{{ square(a) + 4 }}'}).render({a:4}).should.equal("20"); +``` + +should chain with filters. + +```js +twig({data: '{{ echo(a)|default("foo") }}'}).render().should.equal("foo"); +``` + +should work in for loop expressions. + +```js +twig({data: '{% for i in list(1, 2, 3) %}{{ i }},{% endfor %}'}).render().should.equal("1,2,3,"); +``` + +should be able to differentiate between a function and a variable. + +```js +twig({data: '{{ square ( square ) + square }}'}).render({square: 2}).should.equal("6"); +``` + +should work with boolean operations. + +```js +twig({data: '{% if echo(true) or echo(false) %}yes{% endif %}'}).render().should.equal("yes"); +``` + +should execute functions passed as context values. + +```js +twig({ + data: '{{ value }}' +}).render({ + value: function() { + return "test"; + } +}).should.equal("test"); +``` + +should execute functions passed as context values with this mapped to the context. + +```js +twig({ + data: '{{ value }}' +}).render({ + test: "value", + value: function() { + return this.test; + } +}).should.equal("value"); +``` + +should execute functions passed as context values with arguments. + +```js +twig({ + data: '{{ value(1, "test") }}' +}).render({ + value: function(a, b, c) { + return a + "-" + b + "-" + (c===undefined?"true":"false"); + } +}).should.equal("1-test-true"); +``` + +should execute functions passed as context value parameters with this mapped to the context. + +```js +twig({ + data: '{{ value }}' +}).render({ + test: "value", + value: function() { + return this.test; + } +}).should.equal("value"); +``` + +should execute functions passed as context object parameters. + +```js +twig({ + data: '{{ obj.value }}' +}).render({ + obj: { + value: function() { + return "test"; + } + } +}).should.equal("test"); +``` + +should execute functions passed as context object parameters with arguments. + +```js +twig({ + data: '{{ obj.value(1, "test") }}' +}).render({ + obj: { + value: function(a, b, c) { + return a + "-" + b + "-" + (c===undefined?"true":"false"); + } + } +}).should.equal("1-test-true"); +``` + +should execute functions passed as context object parameters. + +```js +twig({ + data: '{{ obj["value"] }}' +}).render({ + obj: { + value: function() { + return "test"; + } + } +}).should.equal("test"); +``` + +should execute functions passed as context object parameters with arguments. + +```js +twig({ + data: '{{ obj["value"](1, "test") }}' +}).render({ + obj: { + value: function(a, b, c) { + return a + "-" + b + "-" + (c===undefined?"true":"false"); + } + } +}).should.equal("1-test-true"); +``` + + +## Built-in Functions -> + +### range -> +should work over a range of numbers. + +```js +twig({data: '{% for i in range(0, 3) %}{{ i }},{% endfor %}'}).render().should.equal("0,1,2,3,"); +``` + +should work over a range of letters. + +```js +twig({data: '{% for i in range("a", "c") %}{{ i }},{% endfor %}'}).render().should.equal("a,b,c,"); +``` + +should work with an interval. + +```js +twig({data: '{% for i in range(1, 15, 3) %}{{ i }},{% endfor %}'}).render().should.equal("1,4,7,10,13,"); +``` + +should work with .. invocation. + +```js +twig({data: '{% for i in 0..3 %}{{ i }},{% endfor %}'}).render().should.equal("0,1,2,3,"); +twig({data: '{% for i in "a" .. "c" %}{{ i }},{% endfor %}'}).render().should.equal("a,b,c,"); +``` + + +### cycle -> +should cycle through an array of values. + +```js +twig({data: '{% for i in range(0, 3) %}{{ cycle(["odd", "even"], i) }};{% endfor %}'}).render().should.equal("odd;even;odd;even;"); +``` + + +### date -> +should understand timestamps. + +```js +var date = new Date(946706400 * 1000); +twig({data: '{{ date(946706400)|date("d/m/Y @ H:i:s") }}'}).render().should.equal(stringDate(date)); +``` + +should understand relative dates. + +```js +twig({data: '{{ date("+1 day") > date() }}'}).render().should.equal("true"); +twig({data: '{{ date("-1 day") > date() }}'}).render().should.equal("false"); +``` + +should support 'now' as a date parameter. + +```js +twig({data: '{{ date("now") }}' }).render().should.equal(new Date().toString()); +``` + +should understand exact dates. + +```js +var date = new Date("June 20, 2010 UTC"); + +twig({data: '{{ date("June 20, 2010 UTC")|date("d/m/Y @ H:i:s") }}'}).render().should.equal(stringDate(date)); +``` + + +### dump -> +should output formatted number. + +```js +twig({data: '{{ dump(test) }}' }).render({ test: 5 }).should.equal('number(5)' + EOL); +``` + +should output formatted string. + +```js +twig({data: '{{ dump(test) }}' }).render({ test: "String" }).should.equal('string(6) "String"' + EOL); +``` + +should output formatted boolean. + +```js +twig({data: '{{ dump(test) }}' }).render({ test: true }).should.equal('bool(true)' + EOL); +``` + +should output formatted null. + +```js +twig({data: '{{ dump(test) }}' }).render({ test: null }).should.equal('NULL' + EOL); +``` + +should output formatted object. + +```js +twig({data: '{{ dump(test) }}' }).render({ test: {} }).should.equal('object(0) {' + EOL + '}' + EOL); +``` + +should output formatted array. + +```js +twig({data: '{{ dump(test) }}' }).render({ test: [] }).should.equal('object(0) {' + EOL + '}' + EOL); +``` + +should output formatted undefined. + +```js +twig({data: '{{ dump(test) }}' }).render({ test: undefined }).should.equal('undefined' + EOL); +``` + + +### block -> +should render the content of blocks. + +```js +twig({data: '{% block title %}Content - {{ val }}{% endblock %} Title: {{ block("title") }}'}).render({ val: "test" }) + .should.equal("Content - test Title: Content - test"); +``` + +shouldn't escape the content of blocks twice. + +```js +twig({ + autoescape: true, + data: '{% block test %}{{ val }}{% endblock %} {{ block("test") }}' +}).render({ + val: "te&st" +}).should.equal("te&st te&st"); +``` + + +### attribute -> +should access attribute of an object. + +```js +twig({data: '{{ attribute(obj, key) }}' }).render({ + obj: { name: "Twig.js"}, + key: "name" +}) +.should.equal("Twig.js"); +``` + +should call function of attribute of an object. + +```js +twig({data: '{{ attribute(obj, key, params) }}' }).render({ + obj: { + name: function(first, last) { + return first+'.'+last; + } + }, + key: "name", + params: ['Twig', 'js'] + }) + .should.equal("Twig.js"); +``` + +should return undefined for missing attribute of an object. + +```js +twig({data: '{{ attribute(obj, key, params) }}' }).render({ + obj: { + name: function(first, last) { + return first+'.'+last; + } + }, + key: "missing", + params: ['Twig', 'js'] + }) + .should.equal(""); +``` + +should return element of an array. + +```js +twig({data: '{{ attribute(arr, 0) }}' }).render({ + arr: ['Twig', 'js'] + }) + .should.equal("Twig"); +``` + +should return undef for array beyond index size. + +```js +twig({data: '{{ attribute(arr, 100) }}' }).render({ + arr: ['Twig', 'js'] + }) + .should.equal(""); +``` + + +### template_from_string -> +should load a template from a string. + +```js +twig({data: '{% include template_from_string("{{ value }}") %}'}).render({ + value: 'test' +}) +.should.equal('test'); +``` + +should load a template from a variable. + +```js +twig({data: '{% include template_from_string(template) %}'}).render({ + template: '{{ value }}', + value: 'test' +}) +.should.equal('test'); +``` + + +### random -> +should return a random item from a traversable or array. + +```js +var arr = "bcdefghij".split(""); +for (var i = 1; i <= 1000; i++) { + arr.should.containEql(twig({data: '{{ random(arr) }}'}).render({arr: arr})); +} +``` + +should return a random character from a string. + +```js +var str = "abcdefghij"; +for (var i = 1; i <= 1000; i++) { + str.should.containEql(twig({data: '{{ random(str) }}'}).render({str: str})); +} +``` + +should return a random integer between 0 and the integer parameter. + +```js +for (var i = 1; i <= 1000; i++) { + twig({data: '{{ random(10) }}'}).render().should.be.within(0, 10); +} +``` + +should return a random integer between 0 and 2147483647 when no parameters are passed. + +```js +for (var i = 1; i <= 1000; i++) { + twig({data: '{{ random() }}'}).render().should.be.within(0, 2147483647); +} +``` + + +### min, max -> +should support the 'min' function. + +```js +twig({data: '{{ min(2, 1, 3, 5, 4) }}'}).render().should.equal('1'); +twig({data: '{{ min([2, 1, 3, 5, 4]) }}'}).render().should.equal('1'); +twig({data: '{{ min({2:"two", 1:"one", 3:"three", 5:"five", 4:"four"}) }}'}).render().should.equal('five'); +``` + +should support the 'max' function. + +```js +twig({data: '{{ max([2, 1, 3, 5, 4]) }}'}).render().should.equal('5'); +twig({data: '{{ max(2, 1, 3, 5, 4) }}'}).render().should.equal('5'); +twig({data: '{{ max({2:"two", 1:"one", 3:"three", 5:"five", 4:"four"}) }}'}).render().should.equal('two'); +``` + + +# Twig.js Loaders -> + +## custom loader -> +should define a custom loader. + +```js +Twig.extend(function(Twig) { + var obj = { + templates: { + 'custom_loader_block': '{% block main %}This lets you {% block data %}use blocks{% endblock data %}{% endblock main %}', + 'custom_loader_simple': 'the value is: {{ value }}', + 'custom_loader_include': 'include others from the same loader method - {% include "custom_loader_simple" %}', + 'custom_loader_complex': '{% extends "custom_loader_block" %} {% block data %}extend other templates and {% include "custom_loader_include" %}{% endblock data %}' + }, + loader: function(location, params, callback, error_callback) { + params.data = this.templates[location]; + params.allowInlineIncludes = true; + var template = new Twig.Template(params); + if (typeof callback === 'function') { + callback(template); + } + return template; + } + }; + Twig.Templates.registerLoader('custom', obj.loader, obj); + Twig.Templates.loaders.should.have.property('custom'); +}); +``` + +should load a simple template from a custom loader. + +```js +twig({ + method: 'custom', + name: 'custom_loader_simple' +}).render({value: 'test succeeded'}).should.equal('the value is: test succeeded'); +``` + +should load a template that includes another from a custom loader. + +```js +twig({ + method: 'custom', + name: 'custom_loader_include' +}).render({value: 'test succeeded'}).should.equal('include others from the same loader method - the value is: test succeeded'); +``` + +should load a template that extends another from a custom loader. + +```js +twig({ + method: 'custom', + name: 'custom_loader_complex' +}).render({value: 'test succeeded'}).should.equal('This lets you extend other templates and include others from the same loader method - the value is: test succeeded'); +``` + +should remove a registered loader. + +```js +Twig.extend(function(Twig) { + Twig.Templates.unRegisterLoader('custom'); + Twig.Templates.loaders.should.not.have.property('custom'); +}); +``` + + +# Twig.js Macro -> +it should load macro. + +```js +twig({ + id: 'macro', + path: 'test/templates/macro.twig', + async: false +}); +// Load the template +twig({ref: 'macro'}).render({ }).should.equal( '' ); +``` + +it should import macro. + +```js +twig({ + id: 'import-macro', + path: 'test/templates/import.twig', + async: false +}); +// Load the template +twig({ref: 'import-macro'}).render({ }).trim().should.equal( "Hello World" ); +``` + +it should run macro with self reference. + +```js +twig({ + id: 'import-macro-self', + path: 'test/templates/macro-self.twig', + async: false +}); +// Load the template +twig({ref: 'import-macro-self'}).render({ }).trim().should.equal( '

' ); +``` + +it should run wrapped macro with self reference. + +```js +twig({ + id: 'import-wrapped-macro-self', + path: 'test/templates/macro-wrapped.twig', + async: false +}); +// Load the template +twig({ref: 'import-wrapped-macro-self'}).render({ }).trim().should.equal( '

' ); +``` + +it should run wrapped macro with context and self reference. + +```js +twig({ + id: 'import-macro-context-self', + path: 'test/templates/macro-context.twig', + async: false +}); +// Load the template +twig({ref: 'import-macro-context-self'}).render({ 'greetings': 'Howdy' }).trim().should.equal( 'Howdy Twigjs' ); +``` + +it should run wrapped macro inside blocks. + +```js +twig({ + id: 'import-macro-inside-block', + path: 'test/templates/macro-blocks.twig', + async: false +}); +// Load the template +twig({ref: 'import-macro-inside-block'}).render({ }).trim().should.equal( 'Welcome
Twig Js
' ); +``` + +it should import selected macros from template. + +```js +twig({ + id: 'from-macro-import', + path: 'test/templates/from.twig', + async: false +}); +// Load the template +twig({ref: 'from-macro-import'}).render({ }).trim().should.equal( 'Twig.js
' ); +``` + +should support inline includes by ID. + +```js +twig({ + id: 'hello', + data: '{% macro echo(name) %}Hello {{ name }}{% endmacro %}' +}); +var template = twig({ + allowInlineIncludes: true, + data: 'template with {% from "hello" import echo %}{{ echo("Twig.js") }}' + }), + output = template.render() +output.should.equal("template with Twig.js"); +``` + + +# Twig.js Namespaces -> +should support namespaces defined with ::. + +```js +twig({ + namespaces: { 'test': 'test/templates/namespaces/' }, + path: 'test/templates/namespaces_::.twig', + load: function(template) { + // Render the template + template.render({ + test: "yes", + flag: true + }).should.equal("namespaces"); + + done(); + } + }); +``` + +should support namespaces defined with @. + +```js +twig({ + namespaces: { 'test': 'test/templates/namespaces/' }, + path: 'test/templates/namespaces_@.twig', + load: function(template) { + // Render the template + template.render({ + test: "yes", + flag: true + }).should.equal("namespaces"); + + done(); + } + }); +``` + + +# Twig.js Optional Functionality -> +should support inline includes by ID. + +```js +twig({ + id: 'other', + data: 'another template' +}); +var template = twig({ + allowInlineIncludes: true, + data: 'template with {% include "other" %}' + }), + output = template.render() +output.should.equal("template with another template"); +``` + + +# Twig.js Parsers -> + +## custom parser -> +should define a custom parser. + +```js +Twig.extend(function(Twig) { + var parser = function(params) { + return '[CUSTOM PARSER] ' + params.data; + }; + Twig.Templates.registerParser('custom', parser); + Twig.Templates.parsers.should.have.property('custom'); +}); +``` + +should run the data through the custom parser. + +```js +Twig.extend(function(Twig) { + var params = { + data: 'This is a test template.' + }; + var template = Twig.Templates.parsers.custom(params); + template.should.equal('[CUSTOM PARSER] This is a test template.'); +}); +``` + +should remove a registered parser. + +```js +Twig.extend(function(Twig) { + Twig.Templates.unRegisterParser('custom'); + Twig.Templates.parsers.should.not.have.property('custom'); +}); +``` + + +# Twig.js Path -> + +## relativePath -> +should throw an error if trying to get a relative path in an inline template. + +```js +(function () { + relativePath({}); +}).should.throw("Cannot extend an inline template."); +``` + +should give the full path to a file when file is passed. + +```js +relativePath({ url: "http://www.test.com/test.twig"}, "templates/myFile.twig").should.equal("http://www.test.com/templates/myFile.twig"); +relativePath({ path: "test/test.twig"}, "templates/myFile.twig").should.equal("test/templates/myFile.twig"); +``` + +should ascend directories. + +```js +relativePath({ url: "http://www.test.com/templates/../test.twig"}, "myFile.twig").should.equal("http://www.test.com/myFile.twig"); +relativePath({ path: "test/templates/../test.twig"}, "myFile.twig").should.equal("test/myFile.twig"); +``` + +should respect relative directories. + +```js +relativePath({ url: "http://www.test.com/templates/./test.twig"}, "myFile.twig").should.equal("http://www.test.com/templates/myFile.twig"); +relativePath({ path: "test/templates/./test.twig"}, "myFile.twig").should.equal("test/templates/myFile.twig"); +``` + + +### url -> +should use the url if no base is specified. + +```js +relativePath({ url: "http://www.test.com/test.twig"}).should.equal("http://www.test.com/"); +``` + +should use the base if base is specified. + +```js +relativePath({ url: "http://www.test.com/test.twig", base: "myTest" }).should.equal("myTest/"); +``` + + +### path -> +should use the path if no base is specified. + +```js +relativePath({ path: "test/test.twig"}).should.equal("test/"); +``` + +should use the base if base is specified. + +```js +relativePath({ path: "test/test.twig", base: "myTest" }).should.equal("myTest/"); +``` + + +## parsePath -> +should fall back to relativePath if the template has no namespaces defined. + +```js +var relativePathStub = sinon.stub(Twig.path, "relativePath"); +parsePath({ options: {} }); +relativePathStub.should.have.been.called; +``` + + +# Twig.js Regression Tests -> +#47 should not match variables starting with not. + +```js +// Define and save a template +twig({data: '{% for note in notes %}{{note}}{% endfor %}'}).render({notes:['a', 'b', 'c']}).should.equal("abc"); +``` + +#56 functions work inside parentheses. + +```js +// Define and save a template +Twig.extendFunction('custom', function(value) { + return true; +}); +twig({data: '{% if (custom("val") and custom("val")) %}out{% endif %}'}).render({}).should.equal("out"); +``` + +#83 Support for trailing commas in arrays. + +```js +twig({data: '{{ [1,2,3,4,] }}'}).render().should.equal("1,2,3,4"); +``` + +#83 Support for trailing commas in objects. + +```js +twig({data: '{{ {a:1, b:2, c:3, } }}'}).render(); +``` + +#283 should support quotes between raw tags. + +```js +twig({data: '{% raw %}\n"\n{% endraw %}'}).render().should.equal('"'); +twig({data: "{% raw %}\n'\n{% endraw %}"}).render().should.equal("'"); +``` + + +# Twig.js Tags -> +should support spaceless. + +```js +twig({ + data: "{% spaceless %}
\n b i\n
{% endspaceless %}" +}).render().should.equal( + "
bi
" +); +``` + + +# Twig.js Tests -> + +## empty test -> +should identify numbers as not empty. + +```js +// number +twig({data: '{{ 1 is empty }}'}).render().should.equal("false" ); +twig({data: '{{ 0 is empty }}'}).render().should.equal("false" ); +``` + +should identify empty strings. + +```js +// String +twig({data: '{{ "" is empty }}'}).render().should.equal("true" ); +twig({data: '{{ "test" is empty }}'}).render().should.equal("false" ); +``` + +should identify empty arrays. + +```js +// Array +twig({data: '{{ [] is empty }}'}).render().should.equal("true" ); +twig({data: '{{ ["1"] is empty }}'}).render().should.equal("false" ); +``` + +should identify empty objects. + +```js +// Object +twig({data: '{{ {} is empty }}'}).render().should.equal("true" ); +twig({data: '{{ {"a":"b"} is empty }}'}).render().should.equal("false" ); +twig({data: '{{ {"a":"b"} is not empty }}'}).render().should.equal("true" ); +``` + + +## odd test -> +should identify a number as odd. + +```js +twig({data: '{{ (1 + 4) is odd }}'}).render().should.equal("true" ); +twig({data: '{{ 6 is odd }}'}).render().should.equal("false" ); +``` + + +## even test -> +should identify a number as even. + +```js +twig({data: '{{ (1 + 4) is even }}'}).render().should.equal("false" ); +twig({data: '{{ 6 is even }}'}).render().should.equal("true" ); +``` + + +## divisibleby test -> +should determine if a number is divisible by the given number. + +```js +twig({data: '{{ 5 is divisibleby(3) }}'}).render().should.equal("false" ); +twig({data: '{{ 6 is divisibleby(3) }}'}).render().should.equal("true" ); +``` + + +## defined test -> +should identify a key as defined if it exists in the render context. + +```js +twig({data: '{{ key is defined }}'}).render().should.equal("false" ); +twig({data: '{{ key is defined }}'}).render({key: "test"}).should.equal( "true" ); +var context = { + key: { + foo: "bar", + nothing: null + }, + nothing: null +}; +twig({data: '{{ key.foo is defined }}'}).render(context).should.equal( "true" ); +twig({data: '{{ key.bar is defined }}'}).render(context).should.equal( "false" ); +twig({data: '{{ key.foo.bar is defined }}'}).render(context).should.equal( "false" ); +twig({data: '{{ foo.bar is defined }}'}).render(context).should.equal( "false" ); +twig({data: '{{ nothing is defined }}'}).render(context).should.equal( "true" ); +twig({data: '{{ key.nothing is defined }}'}).render(context).should.equal( "true" ); +``` + + +## none test -> +should identify a key as none if it exists in the render context and is null. + +```js +twig({data: '{{ key is none }}'}).render().should.equal("false"); +twig({data: '{{ key is none }}'}).render({key: "test"}).should.equal("false"); +twig({data: '{{ key is none }}'}).render({key: null}).should.equal("true"); +twig({data: '{{ key is null }}'}).render({key: null}).should.equal("true"); +``` + + +## sameas test -> +should identify the exact same type as true. + +```js +twig({data: '{{ true is sameas(true) }}'}).render().should.equal("true"); +twig({data: '{{ a is sameas(1) }}'}).render({a: 1}).should.equal("true"); +twig({data: '{{ a is sameas("test") }}'}).render({a: "test"}).should.equal("true"); +twig({data: '{{ a is sameas(true) }}'}).render({a: true}).should.equal("true"); +``` + +should identify the different types as false. + +```js +twig({data: '{{ false is sameas(true) }}'}).render().should.equal("false"); +twig({data: '{{ true is sameas(1) }}'}).render().should.equal("false"); +twig({data: '{{ false is sameas("") }}'}).render().should.equal("false"); +twig({data: '{{ a is sameas(1) }}'}).render({a: "1"}).should.equal("false"); +``` + + +## iterable test -> +should fail on non-iterable data types. + +```js +twig({data: "{{ val is iterable ? 'ok' : 'ko' }}"}).render(data).should.equal("ko"); +twig({data: "{{ val is iterable ? 'ok' : 'ko' }}"}).render({val: null}).should.equal("ko"); +twig({data: "{{ val is iterable ? 'ok' : 'ko' }}"}).render({}).should.equal("ko"); +``` + +should pass on iterable data types. + +```js +twig({data: "{{ foo is iterable ? 'ok' : 'ko' }}"}).render(data).should.equal("ok"); +twig({data: "{{ obj is iterable ? 'ok' : 'ko' }}"}).render(data).should.equal("ok"); +``` + -- cgit v1.2.3