module Extractor::MetadataProcessor

Defined in:

extractor/metadata_processor.cr

Constant Summary

CALLBACK = ->(cls : ::Pointer(Void), plugin : ::Pointer(Char), type : MetaType, format : MetaFormat, mime_type : ::Pointer(Char), data : ::Pointer(Char), size : SizeT) do callback = unbox(cls) plugin_name = PLUGIN_NAMES[String.new(plugin)] mime_type = String.new(mime_type) value = case format when MetaFormat::UTF8 String.new(Bytes.new(data, size - 1), "UTF-8") when MetaFormat::C_STRING String.new(Bytes.new(data, size - 1), "ASCII") else Bytes.new(data, size) end begin callback.call(plugin_name, type, format, mime_type, value) 0 rescue Abort 1 end end

PLUGIN_NAMES = Hash(String, String).new do |plugin_names, plugin| libname = File.basename(plugin, File.extname(plugin)) plugin_names[plugin] = libname.sub("libextractor_", "") end

Mapping of plugin paths to names

Class Method Summary

• .box(closure : Callback) : Pointer(Void)

  Wraps a closure in a box.

• .to_unsafe

  Returns a proc literal for the call method.

• .unbox(cls : Pointer(Void)) : Callback

  Unwraps a boxed closure.

Class Method Detail