Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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# It looks like shit, but I'm not particularly worried about such scripts.
import os
import re
token_list = [
re.compile(r'&&'),
re.compile(r'\|\|'),
re.compile(r'\!'),
re.compile(r'[a-zA-Z0-9_.]*')
]
match_statement = re.compile(r'\[.*\]')
def compute_statement( defines, statement ):
vars = {}
for define in defines:
d=define.split('=')[0]
vars.update({d:True})
def t( op ):
if op == '1': return True
elif op == '0': return False
elif op not in vars: return False
return vars[op]
pos = 0
statement = re.sub(r'\[|\]| |\$', '', statement)
l = []
final = True
final_init = False
while pos < len(statement):
for token in token_list:
r = token.search(statement, pos)
if r and r.start() == pos:
l += [r.group(0)]
pos = r.end()
k = 0
for i in range(len(l)):
j = i-k
if l[j] == '!' and j+1 < len(l):
df = l[j+1]
if df in vars:
vars[df] = not vars[df]
else: vars.update({df:True})
del l[j]
k += 1
k = 0
for i in range(len(l)):
j = i-k
if l[j] == '&&' and j+1 < len(l) and j-1 >= 0:
val = 0
if t(l[j-1]) and t(l[j+1]):
val = 1
del l[j+1], l[j], l[j-1]
l.insert(j, str(val))
k += 2
k = 0
for i in range(len(l)):
j = i-k
if l[j] == '||' and j+1 < len(l) and j-1 >= 0:
val = 0
if t(l[j-1]) or t(l[j+1]):
val = 1
del l[j+1], l[j], l[j-1]
l.insert(j, str(val))
k += 2
return t(l[0])
def project_key(l):
for k in l.keys():
if '$Project' in k:
return k
def fix_dos_path( path ):
path = path.replace('\\', '/')
p = path.split('/')
filename = p[-1]
find_path = '/'.join(p[0:len(p)-1])
if find_path == '': find_path = './'
else: find_path += '/'
if not os.path.exists(find_path):
return find_path+filename
dirlist = os.listdir(find_path)
for file in dirlist:
if file == filename:
return find_path+file
elif file.lower() == filename.lower():
return find_path+file
return find_path+filename
def parse_vpcs( env ,vpcs, basedir ):
back_path = os.path.abspath('.')
os.chdir(env.SUBPROJECT_PATH[0])
sources = []
defines = []
includes = []
for vpc in vpcs:
f=open(vpc, 'r').read().replace('\\\n', ';')
re.sub(r'//.*', '', f)
l = f.split('\n')
iBrackets = 0
next_br = False
ret = {}
cur_key = ''
for i in l:
if i == '': continue
s = match_statement.search(i)
if s and not compute_statement(env.DEFINES+defines, s.group(0)):
continue
if i.startswith('$') and iBrackets == 0:
ret.update({i:[]})
cur_key = i
next_br = True
elif i == '{':
iBrackets += 1
next_br = False
elif i == '}':
iBrackets -= 1
elif iBrackets > 0:
ret[cur_key].append(i)
if next_br:
next_br = False
key = project_key(ret)
l=ret[key]
for i in l:
if '-$File' in i and '.h"' not in i:
for k in i.split(';'):
k = k.replace('$SRCDIR', basedir)
s = fix_dos_path(k.split('"')[1])
for j in range(len(sources)):
if sources[j] == s:
del sources[j]
break
elif '$File' in i and '.h"' not in i:
for j in i.split(';'):
j = j.replace('$SRCDIR', basedir)
s = fix_dos_path(j.split('"')[1])
sources.append(s)
for i in ret['$Configuration']:
if '$PreprocessorDefinitions' in i:
i = i.replace('$BASE', '')
s = i.split('"')[1]
s = re.split(';|,', s)
for j in s:
if j != '' and j not in defines:
defines.append(j)
if '$AdditionalIncludeDirectories' in i:
i = i.replace('$BASE', '').replace('$SRCDIR', basedir)
s = i.split('"')[1]
s = re.split(';|,', s)
for j in s:
j = j.replace('\\','/')
if j != '' and j not in includes:
includes.append(j)
os.chdir(back_path)
return {'defines':defines, 'includes':includes, 'sources': sources}