Sha256: 0983298877295705f27ce311b6aeeedcdfad30b415597411ccf620db9fd538bc
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Size: 1.46 KB
Versions: 9
Compression:
Stored size: 1.46 KB
Contents
module Temple
module HTML
# This filter merges html attributes (e.g. used for id and class)
# @api public
class AttributeMerger < Filter
define_options :merge_attrs => {'id' => '_', 'class' => ' '}
def on_html_attrs(*attrs)
names = []
values = {}
attrs.each do |attr|
name, value = attr[2].to_s, attr[3]
if values[name]
raise(FilterError, "Multiple #{name} attributes specified") unless options[:merge_attrs][name]
values[name] << value
else
values[name] = [value]
names << name
end
end
attrs = names.map do |name|
value = values[name]
if (delimiter = options[:merge_attrs][name]) && value.size > 1
exp = [:multi]
if value.all? {|v| contains_nonempty_static?(v) }
exp << value.first
value[1..-1].each {|v| exp << [:static, delimiter] << v }
[:html, :attr, name, exp]
else
captures = unique_name
exp << [:code, "#{captures} = []"]
value.each_with_index {|v, i| exp << [:capture, "#{captures}[#{i}]", v] }
exp << [:dynamic, "#{captures}.reject(&:empty?).join(#{delimiter.inspect})"]
end
[:html, :attr, name, exp]
else
[:html, :attr, name, value.first]
end
end
[:html, :attrs, *attrs]
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems