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#!/usr/bin/env python3
# A script to generate enums in different languages from a CSV file.
# A CSV File contains
# enum1, 0
# enum2, ..
# ...
# enumn, n
# where 0,...,n are numbers.
#
# Written by Supakorn "Jamie" Rassameemasmuang <jamievlin@outlook.com>
from typing import List, Tuple, Any, Union
from datetime import datetime
import io
import argparse
import os
import sys
import time
import re
def cleanComment(s):
return re.sub(r' *#',' ',s)
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument('-language', '--language', type=str, required=True)
parser.add_argument('-o', '--output', type=str, required=True)
parser.add_argument('-i', '--input', type=str, required=True)
parser.add_argument('-name', '--name', type=str, required=True)
parser.add_argument('-xopt', '--xopt', type=str, nargs='*')
return parser.parse_args()
def create_enums(filename: str) -> List[Union[Tuple[str, int, str], Tuple[str, int]]]:
final_list=[]
with io.open(filename,newline='') as rawfile:
for line in rawfile.readlines():
if line.startswith('#') or line.strip() == '':
continue
raw_line=line.strip().split(',')
raw_str, raw_number=raw_line[0:2]
comment=None
if len(raw_line)>=3:
comment=raw_line[-1]
final_list.append((raw_str.strip(), int(raw_number.strip()),comment))
else:
final_list.append((raw_str.strip(), int(raw_number.strip())))
return final_list
def datetime_now():
return datetime.utcfromtimestamp(
int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))
)
def generate_enum_cpp(outname, enums, name, comment=None, *args, **kwargs):
with io.open(outname, 'w') as fil:
fil.write('// Enum class for {0}\n'.format(name))
if comment is not None:
fil.write('// {0}\n'.format(comment))
fil.write('// Generated at {0}\n\n'.format(datetime_now()))
if 'namespace' in kwargs:
fil.write('namespace {0}\n'.format(kwargs['namespace']))
fil.write('{\n')
fil.write('enum {0} : uint32_t\n'.format(name))
fil.write('{\n')
for enumTxt, enumNum, *ar in enums:
fil.write('{0}={1},\n'.format(enumTxt, enumNum))
if len(ar) > 0:
comment=cleanComment(ar[-1])
if comment is not None:
fil.write('// {0}\n\n'.format(comment.strip()))
fil.write('};\n\n')
if 'namespace' in kwargs:
fil.write('}} // namespace {0}\n'.format(kwargs['namespace']))
fil.write('// End of File\n')
def generate_enum_java(outname, enums, name, comment=None, *args, **kwargs):
with io.open(outname, 'w') as fil:
fil.write('// Enum class for {0}\n'.format(name))
if comment is not None:
fil.write('// {0}\n'.format(comment))
fil.write('// Generated at {0}\n\n'.format(datetime_now()))
if 'package' in kwargs:
fil.write('package {0};\n'.format(kwargs['package']))
fil.write('\n')
fil.write('public enum {0} {{\n'.format(name))
spaces = kwargs.get('spaces', 4)
spaces_tab=' '*spaces
for i in range(len(enums)):
enumTxt, enumNum, *ar = enums[i]
endsep=',' if i < len(enums) - 1 else ';'
fil.write('{2}{0}({1}){3}\n'.format(enumTxt,enumNum,spaces_tab,endsep))
if len(ar) > 0:
comment=cleanComment(ar[-1])
if comment is not None:
fil.write('// {0}\n\n'.format(comment.strip()))
out_lines=[
'',
'{0}(int value) {{'.format(name),
'{0}this.value=value;'.format(spaces_tab),
'}',
'public String toString() {',
'{0}return Integer.toString(value);'.format(spaces_tab),
'}',
'private int value;']
for line in out_lines:
fil.write(spaces_tab)
fil.write(line)
fil.write('\n')
fil.write('};\n\n')
fil.write('// End of File\n')
def generate_enum_asy(outname, enums, name, comment=None, *args, **kwargs):
with io.open(outname, 'w') as fil:
fil.write('// Enum class for {0}\n'.format(name))
if comment is not None:
fil.write('// {0}\n'.format(comment))
fil.write('// Generated at {0}\n\n'.format(datetime_now()))
fil.write('struct {0}\n'.format(name))
fil.write('{\n')
for enumTxt, enumNum, *ar in enums:
fil.write(' int {0}={1};\n'.format(enumTxt, enumNum))
if len(ar) > 0:
comment=cleanComment(ar[-1])
if comment is not None:
fil.write('// {0}\n\n'.format(comment.strip()))
fil.write('};\n\n')
fil.write('{0} {0};'.format(name))
fil.write('// End of File\n')
def generate_enum_py(outname, enums, name, comment=None, *args, **kwargs):
with io.open(outname, 'w') as fil:
fil.write('#!/usr/bin/env python3\n')
fil.write('# Enum class for {0}\n'.format(name))
if comment is not None:
fil.write('""" {0} """\n'.format(comment))
fil.write('# Generated at {0}\n\n'.format(datetime_now()))
fil.write('class {0}:\n'.format(name))
for enumTxt, enumNum, *ar in enums:
fil.write(' {0}_{2}={1}\n'.format(name, enumNum, enumTxt))
if len(ar) > 0:
comment=cleanComment(ar[-1])
if comment is not None:
fil.write(' # {0}\n\n'.format(comment.strip()))
fil.write('# End of File\n')
def main():
arg = parse_args()
if arg.language in {'python', 'py'}:
fn = generate_enum_py
elif arg.language in {'cxx', 'c++', 'cpp'}:
fn = generate_enum_cpp
elif arg.language in {'asy', 'asymptote'}:
fn = generate_enum_asy
elif arg.language in {'java'}:
fn = generate_enum_java
else:
return 1
custom_args = dict()
if arg.xopt is not None:
for xopt in arg.xopt:
key, val = xopt.split('=')
custom_args[key] = val
enums = create_enums(arg.input)
fn(arg.output, enums, arg.name, 'AUTO-GENERATED from '+arg.input, **custom_args)
if __name__ == '__main__':
sys.exit(main() or 0)
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