1# Copyright 2018-2023 The Khronos Group Inc.
2#
3# SPDX-License-Identifier: Apache-2.0
4
5require 'nokogiri'
6
7
8renames = {}
9
10extension_name = ARGV[0]
11extension_suffix = /VK_([^_]+)_.+/.match(extension_name)[1]
12
13allowed_dependency_renames = ['']
14
15file = File.open("vk.xml")
16Nokogiri::XML(file).xpath('//extension[@name="' + extension_name + '"]').each do | extension |
17  extension_enum_offset = 1000000000 + ((extension.attribute('number').content.to_i - 1) * 1000)
18  extension.xpath('require').each do |require|
19
20    do_rename = false
21
22    if require.attribute('extension')
23      allowed_dependency_renames.each do |dependency|
24        if require.attribute('extension').content == dependency
25          do_rename = true
26        end
27      end
28    else
29      do_rename = true
30    end
31
32    if do_rename == false
33      puts "Extension interaction with " + require.attribute('extension').content + " needs addressing!"
34    else
35      core_block = "\t"*2 + require.to_s.lines[0].strip + "\n"
36      alias_block = "\t"*3 + require.to_s.lines[0].strip + "\n"
37
38      require.children.each do |element|
39        if element.node_name != 'text' && element.node_name != 'comment'
40
41          # Core Block
42          if /.+_EXTENSION_NAME/.match(element.attribute('name').content) == nil &&
43             /.+_SPEC_VERSION/.match(element.attribute('name').content) == nil
44
45            case element.node_name
46            when 'enum'
47              attributes = element.attributes
48              if element.attributes['offset']
49                attributes['value'] = element.attribute('offset').content.to_i + extension_enum_offset
50                attributes.delete('offset')
51              end
52
53              core_block << "\t"*3 + '<enum'
54              attributes.each_pair do |key, value|
55                core_block << ' ' + key + '="' + value.to_s + '"'
56              end
57              core_block << '/>' + "\n"
58            when 'type', 'command'
59              core_block << "\t"*3 + element.to_s.strip + "\n"
60            else
61              core_block << "Warning: Unknown type found!\n" << element.node_name
62            end
63          end
64
65          # Alias Block + Renames
66
67          if /.+_EXTENSION_NAME/.match(element.attribute('name').content) ||
68             /.+_SPEC_VERSION/.match(element.attribute('name').content)
69            alias_block << "\t"*4 + element.to_s.strip + "\n"
70          else
71            old_name = element.attribute('name').content
72            new_name = old_name.sub('_' + extension_suffix,'').sub(extension_suffix,'')
73            alias_block << "\t"*4 + '<alias name="' + old_name + '" value="' + new_name + '"/>' + "\n"
74            renames[old_name] = new_name
75            core_block.gsub!(old_name,new_name)
76          end
77        end
78      end
79      alias_block << "\t"*3 + require.to_s.lines[-1].strip
80      core_block << "\t"*2 + require.to_s.lines[-1].strip
81
82      puts alias_block
83      puts
84      puts core_block
85      puts
86      renames.each_pair do |old, new|
87        puts old + ' -> ' + new
88      end
89    end
90  end
91end
92
93outdata = File.read('vk.xml')
94
95renames.each_pair do |old, new|
96  outdata.gsub!(old,new)
97end
98
99File.open('vk.xml', 'w') do |out|
100  out << outdata
101end
102
103def rename_text_files(dir, renames, extension_name)
104  Dir[dir + '/*.adoc'].each do |name|
105    # Skip renaming in the extension appendix, since this should preserve the old names.
106    if (name != ('../appendices/' + extension_name + '.adoc'))
107      old_file = File.read(name)
108
109      new_file = old_file.clone
110      renames.each_pair do |old, new|
111        new_file.gsub!(old,new)
112      end
113
114      if (old_file != new_file)
115        File.write(name, new_file)
116      end
117    end
118  end
119  Dir[dir + '/*/'].each do |subdir|
120    rename_text_files(subdir, renames, extension_name)
121  end
122end
123
124rename_text_files('../chapters', renames, extension_name)
125rename_text_files('../appendices', renames, extension_name)
126