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from re import compile, MULTILINE
from os import walk, getcwd
notice = ('''/*
* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
* Copyright (C) 2021+ WarheadCore <https://github.com/WarheadCore>
* Copyright (C) 2008-2021 TrinityCore <http://www.trinitycore.org/>
*/
''')
if not getcwd().endswith('src'):
print('Run this from the src directory!')
print('(Invoke as \'python ../contrib/enumutils_describe.py\')')
exit(1)
EnumPattern = compile(r'//\s*EnumUtils: DESCRIBE THIS(?:\s*\(in ([^\)]+)\))?\s+enum\s+([0-9A-Za-z]+)[^\n]*\s*{([^}]+)};')
EnumValuesPattern = compile(r'\s+\S.+?(,|$)[^\n]*')
EnumValueNamePattern = compile(r'^\s*([a-zA-Z0-9_]+)', flags=MULTILINE)
EnumValueSkipLinePattern = compile(r'^\s*//')
EnumValueCommentPattern = compile(r'//,?[ \t]*([^\n]+)$')
CommentMatchFormat = compile(r'^(((TITLE +(.+?))|(DESCRIPTION +(.+?))) *){1,2}$')
CommentSkipFormat = compile(r'^SKIP *$')
def strescape(str):
res = ''
for char in str:
if char in ('\\', '"') or not (32 <= ord(char) < 127):
res += ('\\%03o' % ord(char))
else:
res += char
return '"' + res + '"'
def processFile(path, filename):
input = open('%s/%s.h' % (path, filename),'r')
if input is None:
print('Failed to open %s.h' % filename)
return
file = input.read()
enums = []
for enum in EnumPattern.finditer(file):
prefix = enum.group(1) or ''
name = enum.group(2)
values = []
for value in EnumValuesPattern.finditer(enum.group(3)):
valueData = value.group(0)
valueNameMatch = EnumValueNamePattern.search(valueData)
if valueNameMatch is None:
if EnumValueSkipLinePattern.search(valueData) is None:
print('Name of value not found: %s' % repr(valueData))
continue
valueName = valueNameMatch.group(1)
valueCommentMatch = EnumValueCommentPattern.search(valueData)
valueComment = None
if valueCommentMatch:
valueComment = valueCommentMatch.group(1)
valueTitle = None
valueDescription = None
if valueComment is not None:
if CommentSkipFormat.match(valueComment) is not None:
continue
commentMatch = CommentMatchFormat.match(valueComment)
if commentMatch is not None:
valueTitle = commentMatch.group(4)
valueDescription = commentMatch.group(6)
else:
valueDescription = valueComment
if valueTitle is None:
valueTitle = valueName
if valueDescription is None:
valueDescription = ''
values.append((valueName, valueTitle, valueDescription))
enums.append((prefix + name, prefix, values))
print('%s.h: Enum %s parsed with %d values' % (filename, name, len(values)))
if not enums:
return
print('Done parsing %s.h (in %s)\n' % (filename, path))
output = open('%s/enuminfo_%s.cpp' % (path, filename), 'w')
if output is None:
print('Failed to create enuminfo_%s.cpp' % filename)
return
# write output file
output.write(notice)
output.write('#include "%s.h"\n' % filename)
output.write('#include "Define.h"\n')
output.write('#include "SmartEnum.h"\n')
output.write('#include <stdexcept>\n')
output.write('\n')
output.write('namespace acore::Impl::EnumUtilsImpl\n')
output.write('{\n')
for name, prefix, values in enums:
tag = ('data for enum \'%s\' in \'%s.h\' auto-generated' % (name, filename))
output.write('\n')
output.write('/*' + ('*'*(len(tag)+2)) + '*\\\n')
output.write('|* ' + tag + ' *|\n')
output.write('\\*' + ('*'*(len(tag)+2)) + '*/\n')
output.write('template <>\n')
output.write('EnumText EnumUtils<%s>::ToString(%s value)\n' % (name, name))
output.write('{\n')
output.write(' switch (value)\n')
output.write(' {\n')
for label, title, description in values:
output.write(' case %s: return { %s, %s, %s };\n' % (prefix + label, strescape(label), strescape(title), strescape(description)))
output.write(' default: throw std::out_of_range("value");\n')
output.write(' }\n')
output.write('}\n')
output.write('\n')
output.write('template <>\n')
output.write('size_t EnumUtils<%s>::Count() { return %d; }\n' % (name, len(values)))
output.write('\n')
output.write('template <>\n')
output.write('%s EnumUtils<%s>::FromIndex(size_t index)\n' % (name, name))
output.write('{\n')
output.write(' switch (index)\n')
output.write(' {\n')
for (i, (label, title, description)) in enumerate(values):
output.write(' case %d: return %s;\n' % (i, prefix + label))
output.write(' default: throw std::out_of_range("index");\n')
output.write(' }\n')
output.write('}\n')
output.write('\n')
output.write('template <>\n')
output.write('size_t EnumUtils<%s>::ToIndex(%s value)\n' % (name, name))
output.write('{\n')
output.write(' switch (value)\n')
output.write(' {\n')
for (i, (label, title, description)) in enumerate(values):
output.write(' case %s: return %d;\n' % (prefix + label, i))
output.write(' default: throw std::out_of_range("value");\n')
output.write(' }\n')
output.write('}\n')
output.write('}\n')
FilenamePattern = compile(r'^(.+)\.h$')
for root, dirs, files in walk('.'):
for n in files:
nameMatch = FilenamePattern.match(n)
if nameMatch is not None:
processFile(root, nameMatch.group(1))
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