Class: Liquid::Block
Direct Known Subclasses
Capture, Case, Comment, Document, Extends, For, If, Ifchanged, InheritedBlock, Raw, TableRow
Constant Summary
collapse
- IsTag =
/^#{TagStart}/o
- IsVariable =
/^#{VariableStart}/o
- FullToken =
/^#{TagStart}\s*(\w+)\s*(.*)?#{TagEnd}$/o
- ContentOfVariable =
/^#{VariableStart}(.*)#{VariableEnd}$/o
Instance Attribute Summary
Attributes inherited from Tag
#line, #nodelist, #options
Instance Method Summary
collapse
Methods inherited from Tag
#initialize, #name, new_with_options, #parse_with_selected_parser
Constructor Details
This class inherits a constructor from Liquid::Tag
Instance Method Details
#blank? ⇒ Boolean
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# File 'lib/liquid/block.rb', line 8
def blank?
@blank || false
end
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#block_delimiter ⇒ Object
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# File 'lib/liquid/block.rb', line 98
def block_delimiter
"end#{block_name}"
end
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#block_name ⇒ Object
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# File 'lib/liquid/block.rb', line 102
def block_name
@tag_name
end
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#create_variable(token) ⇒ Object
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# File 'lib/liquid/block.rb', line 106
def create_variable(token)
token.scan(ContentOfVariable) do |content|
return Variable.new(content.first, @options)
end
raise SyntaxError.new(options[:locale].t("errors.syntax.variable_termination", :token => token, :tag_end => VariableEnd.inspect), line)
end
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#end_tag ⇒ Object
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# File 'lib/liquid/block.rb', line 81
def end_tag
end
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#parse(tokens) ⇒ Object
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# File 'lib/liquid/block.rb', line 12
def parse(tokens)
self.line ||= 1
@blank = true
@nodelist ||= []
@nodelist.clear
@children = []
while token = tokens.shift
case token
when IsTag
if token =~ FullToken
if block_delimiter == $1
end_tag
return
end
if tag = Template.tags[$1]
new_tag = tag.new_with_options($1, $2, tokens, @options.merge(line: line))
@blank &&= new_tag.blank?
@nodelist << new_tag
@children << new_tag
else
unknown_tag($1, $2, tokens)
end
else
raise SyntaxError.new(options[:locale].t("errors.syntax.tag_termination", :token => token, :tag_end => TagEnd.inspect), line)
end
when IsVariable
new_var = create_variable(token)
@nodelist << new_var
@children << new_var
@blank = false
when ''
else
self.line += token.count("\n") if @options[:count_lines] || Template.count_lines
@nodelist << token
@blank &&= (token =~ /\A\s*\z/)
end
end
assert_missing_delimitation!
end
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#render(context) ⇒ Object
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# File 'lib/liquid/block.rb', line 113
def render(context)
render_all(@nodelist, context)
end
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#unknown_tag(tag, params, tokens) ⇒ Object
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# File 'lib/liquid/block.rb', line 84
def unknown_tag(tag, params, tokens)
case tag
when 'else'
raise SyntaxError.new(options[:locale].t("errors.syntax.unexpected_else",
:block_name => block_name), line)
when 'end'
raise SyntaxError.new(options[:locale].t("errors.syntax.invalid_delimiter",
:block_name => block_name,
:block_delimiter => block_delimiter), line)
else
raise SyntaxError.new(options[:locale].t("errors.syntax.unknown_tag", :tag => tag), line)
end
end
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#warnings ⇒ Object
warnings of this block and all sub-tags
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# File 'lib/liquid/block.rb', line 70
def warnings
all_warnings = []
all_warnings.concat(@warnings) if @warnings
(@children || []).each do |node|
all_warnings.concat(node.warnings || [])
end
all_warnings
end
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