A script to convert full C# files to ones which can be used by Space Engineers.

SpaceEngineers_IngameScriptBuilder.py

"""
A script to edit space engineers source files to a copiable format to paste into
the programmable blocks. Whitespace and comments (both single line and multiline)
are removed (all contents inside double quoted strings are preserved), and anything
between the following comments are removed also:
/*-*/<content>/*-*/
(repeatable). This enables the automatic removal of usings and namespaces.
"""
import os
import re
import itertools

BASEDIR = os.path.abspath(os.path.join("..", "Scripts"))
OUTDIR = os.path.join(BASEDIR, "out")
IGNORE = [
    "BaseProgram.cs",
    "configuable automatic lcds.cs"
]

print("Buildings files in '{}' to '{}'.".format(BASEDIR, OUTDIR))
if not os.path.isdir(OUTDIR):
    os.mkdir(OUTDIR)

CSFILE = re.compile(r"^.*\.cs$", re.IGNORECASE)

RMV_CUSTOM = re.compile(r"(/\*-\*/)(?:.)*?\1", re.IGNORECASE | re.DOTALL)
RMV_SINGLE_COMMENT = re.compile(r"//.*?\n", re.IGNORECASE)
RMV_MULTI_COMMENT = re.compile(r"/\*.*?\*/", re.IGNORECASE | re.DOTALL)
RPL_WHITESPACE = re.compile(r'(?:(?:\s\s+)|(?:\n))(?=((\\[\\"]|[^\\"])*"(\\[\\"]|[^\\"])*")*(\\[\\"]|[^\\"])*$)', re.IGNORECASE)

print()
files = []
for fname in os.listdir(BASEDIR):
    fpath = os.path.join(BASEDIR, fname)
    if os.path.isfile(fpath) and CSFILE.match(fpath) and fname not in IGNORE:
        print("Found '{}'".format(fname))
        files.append(fname)

print("{} files found, processing...".format(len(files)))

for fname in files:
    towrite = ""
    with open(os.path.join(BASEDIR, fname)) as fin:
        content = fin.read()
        char_ignores = []
        for rx in [RMV_CUSTOM, RMV_MULTI_COMMENT, RMV_SINGLE_COMMENT]:
            for match in rx.finditer(content):
                char_ignores.append(range(match.start(), match.end()))
        ignore_ranges = itertools.chain(*char_ignores)
        content_builder = list(content)
        for i in ignore_ranges:
            content_builder[i] = " "
        content = "".join(content_builder)
        towrite = RPL_WHITESPACE.sub(" ", content).strip()
    with open(os.path.join(OUTDIR, fname), "w") as fout:
        fout.write(towrite)
    print("Processed '{}'".format(fname))

print("Finished all processing.")