class Jekyll::Tags::JekyllInlineSvg
Constants
- PARAM_SYNTAX
parse the first parameter in a string, giving :
[full_match, param_name, double_quoted_val, single_quoted_val, unquoted_val]
The Regex works like :
-
first group
- match a group of characters that is alphanumeric, _ or -.
-
second group (non-capturing OR)
- match a double-quoted string - match a single-quoted string - match an unquoted string matching the set : [\w\.\-#]
-
- PATH_SYNTAX
Separate file path from other attributes
- VARIABLE
For interpoaltion, look for liquid variables
Public Class Methods
new(tag_name, markup, tokens)
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Calls superclass method
# File lib/jekyll-inline-external-svg.rb, line 45 def initialize(tag_name, markup, tokens) super @svg, @params = JekyllInlineSvg.parse_params(markup) end
parse_params(markup)
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Parse parameters. Returns : [svg_path, parameters]
Does not interpret variables as it's done at render time
# File lib/jekyll-inline-external-svg.rb, line 74 def self.parse_params(markup) matched = markup.strip.match(PATH_SYNTAX) if !matched raise SyntaxError, <<~END Syntax Error in tag 'highlight' while parsing the following markup: #{markup} Valid syntax: svg <path> [property=value] END end path = matched["path"].sub(%r!^["']!,"").sub(%r!["']$!,"").strip params = matched["params"].strip return path, params end
set(p)
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# File lib/jekyll-inline-external-svg.rb, line 93 def self.set (p) @@params = p end
Public Instance Methods
add_file_to_dependency(site, path, context)
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# File lib/jekyll-inline-external-svg.rb, line 104 def add_file_to_dependency(site, path, context) if context.registers[:page] && context.registers[:page].key?("path") site.regenerator.add_dependency( site.in_source_dir(context.registers[:page]["path"]), path ) end end
create_plugin(params)
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# File lib/jekyll-inline-external-svg.rb, line 91 def create_plugin(params) mod = Class.new(SvgOptimizer::Plugins::Base) do def self.set (p) @@params = p end def process @@params.each {|key,val| xml.root.set_attribute(key,val)} return xml end end mod.set(params) return mod end
fmt(params)
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# File lib/jekyll-inline-external-svg.rb, line 87 def fmt(params) r = params.to_a.select{|v| v[1] != ""}.map {|v| %!#{v[0]}="#{v[1]}"!} r.join(" ") end
interpolate(markup, context)
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lookup Liquid variables from markup in context
# File lib/jekyll-inline-external-svg.rb, line 51 def interpolate(markup, context) markup.scan VARIABLE do |variable| markup = markup.sub(VARIABLE, lookup_variable(context, variable.first)) end markup end
process()
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# File lib/jekyll-inline-external-svg.rb, line 96 def process @@params.each {|key,val| xml.root.set_attribute(key,val)} return xml end
render(context)
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# File lib/jekyll-inline-external-svg.rb, line 113 def render(context) #global site variable site = context.registers[:site] #check if given name is a variable. Otherwise use it as a file name svg_file = Jekyll.sanitized_path(site.source, interpolate(@svg,context)) return unless svg_file add_file_to_dependency(site,svg_file, context) #replace variables with their current value params = split_params(@params,context) #because ie11 require to have a height AND a width if params.key? "width" and ! params.key? "height" params["height"] = params["width"] end #params = @params if params.key? "is_external" file = open(svg_file).read else file = File.open(svg_file, "rb").read end conf = lookup_variable(context,"site.svg") if conf["optimize"] == true xml = SvgOptimizer.optimize(file, [create_plugin(params)] + PLUGINS) else xml = Nokogiri::XML(file) params.each {|key,val| xml.root.set_attribute(key,val)} xml = xml.to_xml end return xml end
split_params(markup, context)
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# File lib/jekyll-inline-external-svg.rb, line 57 def split_params(markup, context) params={} while (match = PARAM_SYNTAX.match(markup)) markup = markup[match.end(0)..-1] value = if match[2] interpolate(match[2].gsub(%r!\\"!, '"'), context) elsif match[3] interpolate(match[3].gsub(%r!\\'!, "'"),context) elsif match[4] lookup_variable(context, match[4]) end params[match[1]] = value end return params end