0.15.1

Bug Fixes

• Fix bug in LazyValueWrapper, causing it to never resolve.
  David Jennes
  #328

0.15.0

Breaking

• Drop support for Swift < 5. For Swift 4.2 support, you should use Stencil 0.14.2.
  David Jennes
  #323

Enhancements

• Added support for trimming whitespace around blocks with Jinja2 whitespace control symbols. eg {%- if value +%}.
  Miguel Bejar
  Yonas Kolb
  #92
  #287
• Added support for adding default whitespace trimming behaviour to an environment.
  Yonas Kolb
  #287
• Blocks now can be used repeatedly in the template. When block is rendered for the first time its content will be cached and it can be rendered again later using {{ block.block_name }}.
  Ilya Puchka
  #158
  #182
• Added break and continue tags to break or continue current loop.
  Ilya Puchka
  #175
• You can now access outer loop's scope by labeling it: {% outer: for ... %}... {% for ... %} {{ outer.counter }} {% endfor %}{% endfor %}.
  Ilya Puchka
  #175
• Boolean expressions can now be rendered, i.e {{ name == "John" }} will render true or false depending on the evaluation result.
  Ilya Puchka
  David Jennes
  #164
  #325
• Enable dynamic member lookup using a new DynamicMemberLookup marker protocol. Conform your own types to this protocol to support dynamic member from with contexts.
  Ilya Puchka
  #219
  #246
• Allow providing lazily evaluated context data, using the LazyValueWrapper structure.
  David Jennes
  #324

Bug Fixes

• Fixed using {{ block.super }} inside nodes other than block.
  Ilya Puchka
  #266
  #267

Internal Changes

• Updated internal maintenance scripts, and switched to GitHub actions.
  David Jennes
  #321
• Made the tokens property on a Template public.
  Stefanomondino
  #292
• Made the Template.render(_:) method (that accepts a Context) public.
  David Jennes
  #322

0.14.2

Internal Changes

• Update Spectre (0.10) and PathKit to support Xcode 13.
  Astromonkee
  #314

0.14.1

Bug Fixes

• Fix for crashing range indexes when variable length is 1.
  Łukasz Kuczborski
  #306

0.14.0

Breaking

• Drop support for Swift < 4.2. For Swift 4 support, you should use Stencil 0.13.1.
  David Jennes
  #294

Enhancements

• Added support for dynamic filter using filter filter. With that you can define a variable with a name of filter
  , i.e. myfilter = "uppercase" and then use it to invoke this filter with {{ string|filter:myfilter }}.
  Ilya Puchka
  #203

Deprecations

None

Bug Fixes

• Fixed using parenthesis in boolean expressions, they now can be used without spaces around them.
  Ilya Puchka
  #254
• Throw syntax error on empty variable tags ({{ }}) instead fatalError.
  Ilya Puchka
  #263

Internal Changes

• Token type converted to struct to allow computing token components only once.
  Ilya Puchka
  #256
• Added SwiftLint to the project.
  David Jennes
  #249
• Updated to Swift 5.
  Jungwon An
  #268

0.13.1

Bug Fixes

• Fixed a bug in Stencil 0.13 where tags without spaces were incorrectly parsed.
  David Jennes
  #252

0.13.0

Breaking

• Now requires Swift 4.1 or newer.
  Yonas Kolb
  #228

Enhancements

• You can now use parentheses in boolean expressions to change operator precedence.
  Ilya Puchka
  #165
• Added method to add boolean filters with their negative counterparts.
  Ilya Puchka
  #160
• Now you can conditionally render variables with {{ variable if condition }}, which is a shorthand for {% if condition %}{{ variable }}{% endif %}. You can also use else like {{ variable1 if condition else variable2 }}, which is a shorthand for {% if condition %}{{ variable1 }}{% else %}{{ variable2 }}{% endif %}
  Ilya Puchka
  #243
• Now you can access string characters by index or get string length the same was as if it was an array, i.e. {{ 'string'.first }}, {{ 'string'.last }}, {{ 'string'.1 }}, {{ 'string'.count }}.
  Ilya Puchka
  #245

Bug Fixes

• Fixed the performance issues introduced in Stencil 0.12 with the error log improvements.
  Ilya Puchka
  #230
• Now accessing undefined keys in NSObject does not cause runtime crash and instead renders empty string.
  Ilya Puchka
  #234
• for tag: When iterating over a dictionary the keys will now always be sorted (in an ascending order) to ensure consistent output generation.
  David Jennes
  #240

Internal Changes

• Updated the codebase to use Swift 4 features.
  David Jennes
  #239
• Update to Spectre 0.9.0.
  Ilya Puchka
  #247
• Optimise Scanner performance.
  Eric Thorpe
  Sébastien Duperron
  David Jennes
  #226

0.12.1

Internal Changes

• Updated the PathKit dependency to 0.9.0 in CocoaPods, to be in line with SPM.
  David Jennes
  #227

0.12.0

Enhancements

• Added an optional second parameter to the include tag for passing a sub context to the included file.
  Yonas Kolb
  #214
• Variables now support the subscript notation. For example, if you have a variable key = "name", and an
  object item = ["name": "John"], then {{ item[key] }} will evaluate to "John".
  David Jennes
  #215
• Adds support for using spaces in filter expression.
  Ilya Puchka
  #178
• Improvements in error reporting.
  Ilya Puchka
  #167

Bug Fixes

• Fixed using quote as a filter parameter.
  Ilya Puchka
  #210

0.11.0

Enhancements

• Added support for resolving superclass properties for not-NSObject subclasses
• The {% for %} tag can now iterate over tuples, structures and classes via
  their stored properties.
• Added split filter
• Allow default string filters to be applied to arrays
• Similar filters are suggested when unknown filter is used
• Added indent filter
• Allow using new lines inside tags
• Added support for iterating arrays of tuples
• Added support for ranges in if-in expression
• Added property forloop.length to get number of items in the loop
• Now you can construct ranges for loops using a...b syntax, i.e. for i in 1...array.count

Bug Fixes

• Fixed rendering {{ block.super }} with several levels of inheritance
• Fixed checking dictionary values for nil in default filter
• Fixed comparing string variables with string literals, in Swift 4 string literals became Substring and thus couldn't be directly compared to strings.
• Integer literals now resolve into Int values, not Float
• Fixed accessing properties of optional properties via reflection
• No longer render optional values in arrays as Optional(..)
• Fixed subscription tuples by value index, i.e. {{ tuple.0 }}