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Contents
# frozen_string_literal: true
# Based on Temple::ERB::Trimming, also released under the MIT licence.
#
# Copyright (c) 2010-2023 Magnus Holm.
module Hanami
class View
module ERB
module Filters
# Trims spurious spaces from ERB-generated text.
#
# Deletes spaces around "<% %>" and leave spaces around "<%= %>".
#
# This is a copy of Temple::ERB::Trimming, with the one difference being that it descends
# into the sexp-tree by running `compile(e)` for any non-`:static` sexps. This is necessary
# for our implementation of ERB, because we capture block content by creating additional
# `:multi` sexps with their own nested content.
#
# @api private
# @since 2.1.0
class Trimming < Temple::Filter
define_options trim: true
def on_multi(*exps)
exps = exps.each_with_index.map do |e,i|
if e.first == :static && i > 0 && exps[i-1].first == :code
[:static, e.last.lstrip]
elsif e.first == :static && i < exps.size-1 && exps[i+1].first == :code
[:static, e.last.rstrip]
else
compile(e)
end
end if options[:trim]
[:multi, *exps]
end
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems