Files
CoolProp/dev/scripts/generate_constants_module.py
2014-09-15 16:15:23 +02:00

62 lines
2.4 KiB
Python

import os,shutil
"""
A little script to wrap the params enum for use in Cython code
Ian Bell, May 2014
"""
def params_constants(enum_key):
fName = os.path.join('..','..','include','DataStructures.h')
contents = open(fName,'r').read()
left = contents.find('{', contents.find('enum '+enum_key));
right = contents.find('}', left)
entries = contents[left+1:right]
if entries.find('/*') > -1: raise ValueError('/* */ style comments are not allowed, replace them with // style comments')
if not entries: raise ValueError('Unable to find '+enum_key)
lines = entries.split('\n')
lines = filter(lambda line: not line.strip().startswith('//') and line, lines)
for i,line in enumerate(lines):
if line.find('/'):
lines[i] = line.split('/')[0]
# Chomp all the whitespace, split at commas
keys = ''.join(lines).replace(' ','').split(',')
keys = filter(lambda k: k, keys)
return keys
def generate_cython(data):
#Write the PXD definition file
pxd_output_file = open('constants_header.pxd','w')
pxd_output_file.write('# This file is automatically generated by the generate_constants_module.py script in dev/scripts.\n# DO NOT MODIFY THE CONTENTS OF THIS FILE!\n\ncdef extern from "DataStructures.h" namespace "CoolProp":\n')
for enum_key, entries in data:
pxd_output_file.write('\tctypedef enum '+enum_key+':\n')
for param in entries:
param = param.strip()
pxd_output_file.write('\t\t'+param+'\n')
pxd_output_file.close()
#Write the PYX implementation file
pyx_output_file = open('constants.pyx','w')
pyx_output_file.write('# This file is automatically generated by the generate_constants_module.py script in dev/scripts.\n# DO NOT MODIFY THE CONTENTS OF THIS FILE!\ncimport constants_header\n\n')
for enum_key, entries in data:
for param in entries:
param = param.strip()
pyx_output_file.write(param+' = '+'constants_header.'+param+'\n')
pyx_output_file.close()
shutil.copy2('constants_header.pxd',os.path.join('..','..','wrappers','Python','CoolProp','constants_header.pxd'))
shutil.copy2('constants.pyx',os.path.join('..','..','wrappers','Python','CoolProp','constants.pyx'))
if __name__=='__main__':
data = [(enum,params_constants(enum)) for enum in ['parameters', 'input_pairs', 'fluid_types', 'phases']]
generate_cython(data)