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Contents
require 'jsduck/util/html'
require 'jsduck/logger'
module JsDuck
module Inline
# Implementation of inline tag {@img}
class Img
# Base path to prefix images from {@img} tags.
# Defaults to no prefix.
attr_accessor :base_path
# This will hold list of all image paths gathered from {@img} tags.
attr_accessor :images
def initialize(opts={})
@tpl = opts[:img_tpl] || '<img src="%u" alt="%a"/>'
@re = /\{@img\s+(\S*?)(?:\s+(.+?))?\}/m
@base_path = nil
@images = []
end
# Takes StringScanner instance.
#
# Looks for inline tag at the current scan pointer position, when
# found, moves scan pointer forward and performs the apporpriate
# replacement.
def replace(input)
if input.check(@re)
input.scan(@re).sub(@re) { apply_tpl($1, $2) }
else
false
end
end
# applies the image template
def apply_tpl(url, alt_text)
@images << url
@tpl.gsub(/(%\w)/) do
case $1
when '%u'
@base_path ? (@base_path + "/" + url) : url
when '%a'
Util::HTML.escape(alt_text||"")
else
$1
end
end
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems