Previously you could do, e.g. {{ site | jsonify }}, but with the introduction of Liquid Drops, this didn't work anymore.
This PR adds the ability to render drops as JSON. You can safely run drop.to_json and it should Do the Right Thing.
This commit introduces a where_exp filter, which can be used as follows:
`{{ array | where_exp: "item", "item == 10" }}`
`{{ array | where_exp: "item", "item.field > 10" }}`
`{{ site.posts | where_exp: "post", "post contains 'field'" }}`
`{{ site.posts | where_exp: "post", "post.array contains 'giraffes'" }}`
This permits a variety of use cases, such as reported in: jekyll#4467,
jekyll#4385, jekyll#2787.
This removes the following warnings:
- /lib/jekyll/configuration.rb:151: warning: instance variable @default_config_file not initialized
- /lib/jekyll/converter.rb:12: warning: instance variable @highlighter_prefix not initialized
- /lib/jekyll/converter.rb:24: warning: instance variable @highlighter_suffix not initialized
- /lib/jekyll/converters/markdown.rb:9: warning: instance variable @setup not initialized
- /lib/jekyll/converters/markdown/kramdown_parser.rb:60: warning: instance variable @highlighter not initialized
- /lib/jekyll/frontmatter_defaults.rb:97: warning: shadowing outer local variable - path
- /lib/jekyll/plugin.rb:66: warning: instance variable @safe not initialized
- /lib/jekyll/regenerator.rb:147: warning: instance variable @disabled not initialized
- /test/test_convertible.rb:40: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_filters.rb:154: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_new_command.rb:84: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_site.rb:234: warning: assigned but unused variable - site
- /test/test_site.rb:240: warning: assigned but unused variable - site
- /test/test_site.rb:522: warning: assigned but unused variable - source
- /test/test_tags.rb:153: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:425: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:449: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:496: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:496: warning: instance variable @result not initialized
- /test/test_tags.rb:511: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:773: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_tags.rb:773: warning: instance variable @result not initialized
- /test/test_tags.rb:788: warning: ambiguous first argument; put parentheses or a space even after `/' operator
- /test/test_url.rb:66: warning: shadowing outer local variable - doc
- /lib/jekyll/url.rb:119:in `escape_path': warning: URI.escape is obsolete
Non-string input was being missed as a result of poor comparison.
Converting inputs to strings ensure numerical and boolean values are
properly compared.
Fixes#3911.