| @@ -27,4 +27,20 @@ module LiquidDroppable | ||
| 27 | 27 | def to_liquid | 
| 28 | 28 | self.class::Drop.new(self) | 
| 29 | 29 | end | 
| 30 | + | |
| 31 | + require 'uri' | |
| 32 | + | |
| 33 | + class URIDrop < Drop | |
| 34 | +    URI::Generic::COMPONENT.each { |attr| | |
| 35 | +      define_method(attr) { | |
| 36 | + @object.__send__(attr) | |
| 37 | + } | |
| 38 | + } | |
| 39 | + end | |
| 40 | + | |
| 41 | + class ::URI::Generic | |
| 42 | + def to_liquid | |
| 43 | + URIDrop.new(self) | |
| 44 | + end | |
| 45 | + end | |
| 30 | 46 | end | 
| @@ -116,6 +116,22 @@ module LiquidInterpolatable | ||
| 116 | 116 | CGI.escape(string) rescue string | 
| 117 | 117 | end | 
| 118 | 118 |  | 
| 119 | + # Parse an input into a URI object, optionally resolving it | |
| 120 | + # against a base URI if given. | |
| 121 | + # | |
| 122 | + # A URI object will have the following properties: scheme, | |
| 123 | + # userinfo, host, port, registry, path, opaque, query, and | |
| 124 | + # fragment. | |
| 125 | + def to_uri(uri, base_uri = nil) | |
| 126 | + if base_uri | |
| 127 | + URI(base_uri) + uri.to_s | |
| 128 | + else | |
| 129 | + URI(uri.to_s) | |
| 130 | + end | |
| 131 | + rescue URI::Error | |
| 132 | + nil | |
| 133 | + end | |
| 134 | + | |
| 119 | 135 | # Escape a string for use in XPath expression | 
| 120 | 136 | def to_xpath(string) | 
| 121 | 137 |        subs = string.to_s.scan(/\G(?:\A\z|[^"]+|[^']+)/).map { |x| | 
| @@ -59,4 +59,41 @@ describe LiquidInterpolatable::Filters do | ||
| 59 | 59 | @filter.to_xpath_roundtrip(1).should == '1' | 
| 60 | 60 | end | 
| 61 | 61 | end | 
| 62 | + | |
| 63 | + describe 'to_uri' do | |
| 64 | + before do | |
| 65 | +      @agent = Agents::InterpolatableAgent.new(name: "test", options: { 'foo' => '{% assign u = s | to_uri %}{{ u.path }}' }) | |
| 66 | + @agent.interpolation_context['s'] = 'http://example.com/dir/1?q=test' | |
| 67 | + end | |
| 68 | + | |
| 69 | + it 'should parse an abosule URI' do | |
| 70 | +      @filter.to_uri('http://example.net/index.html', 'http://example.com/dir/1').should == URI('http://example.net/index.html') | |
| 71 | + end | |
| 72 | + | |
| 73 | + it 'should parse an abosule URI with a base URI specified' do | |
| 74 | +      @filter.to_uri('http://example.net/index.html', 'http://example.com/dir/1').should == URI('http://example.net/index.html') | |
| 75 | + end | |
| 76 | + | |
| 77 | + it 'should parse a relative URI with a base URI specified' do | |
| 78 | +      @filter.to_uri('foo/index.html', 'http://example.com/dir/1').should == URI('http://example.com/dir/foo/index.html') | |
| 79 | + end | |
| 80 | + | |
| 81 | + it 'should parse an abosule URI with a base URI specified' do | |
| 82 | +      @filter.to_uri('http://example.net/index.html', 'http://example.com/dir/1').should == URI('http://example.net/index.html') | |
| 83 | + end | |
| 84 | + | |
| 85 | + it 'should stringify a non-string operand' do | |
| 86 | +      @filter.to_uri(123, 'http://example.com/dir/1').should == URI('http://example.com/dir/123') | |
| 87 | + end | |
| 88 | + | |
| 89 | + it 'should return a URI value in interpolation' do | |
| 90 | + @agent.interpolated['foo'].should == '/dir/1' | |
| 91 | + end | |
| 92 | + | |
| 93 | + it 'should return a URI value resolved against a base URI in interpolation' do | |
| 94 | +      @agent.options['foo'] = '{% assign u = s | to_uri:"http://example.com/dir/1" %}{{ u.path }}' | |
| 95 | + @agent.interpolation_context['s'] = 'foo/index.html' | |
| 96 | + @agent.interpolated['foo'].should == '/dir/foo/index.html' | |
| 97 | + end | |
| 98 | + end | |
| 62 | 99 | end |