Use Sinatra::HamlHelpers

[dentarg]

Using Sinatra::HamlHelpers from sinatra-contrib: sinatra/sinatra#1960

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See https://github.com/haml/haml/blob/v6.0.5/lib/haml/rails_helpers.rb

Uses the capture method from https://github.com/sinatra/sinatra/blob/v3.0.2/sinatra-contrib/lib/sinatra/capture.rb

See also

• https://github.com/rails/rails/blob/v7.0.4/activesupport/lib/active_support/core_ext/string/output_safety.rb
• https://github.com/rails/rails/blob/v7.0.4/actionview/lib/action_view/buffers.rb
• https://github.com/rails/rails/blob/v7.0.4/actionview/lib/action_view/helpers/tag_helper.rb#L413-L422 (escape_once defined here, not implemented right now)

Not sure if this is safe or not :)

[dentarg]

Also interesting:

• Documenting "Most Haml helpers are removed." haml/haml#1092 (comment)
• haml/haml@b55b277

[dentarg]

See also dentarg/urls@cbf62de

[dentarg]

About Haml 5 and Rails, but a bit interesting: rails/rails#47443

[dentarg]

Some words about alternatives to removed helpers from haml/haml@d528eec

Alternatives to the removed helpers:

• Some simple ones could work by copying the original definition.
• For helpers generating general HTML tags, also consider using what your framework provides, e.g. Rails content_tag.
  Same applies to capture_haml, e.g. Rails capture.
• Ones that rely on Haml::Buffer have no direct alternative by design. They existed at the cost of performance.
  You need to define a helper, instantiate a String buffer in it, append stuff to it, and call it inside =.

[dentarg]

Maybe the helpers can be a part of sinatra/contrib: sinatra/sinatra#1960