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#!/usr/bin/env python
from __future__ import absolute_import, division, print_function
import argparse
import codecs
import os.path
import re
RE_EACH_CODE_BLOCK = re.compile(
r'(?s)(?:```|\{\{< high rust[^>]+>\}\})[^\n]*\n(.*?)(?:```|\{\{< /high >\}\})' # noqa
)
RE_MARKER = re.compile(r'^(?:# )?//([^/].*)$')
RE_STRIP_COMMENT = re.compile(r'^# ?')
if __name__ == '__main__':
p = argparse.ArgumentParser()
p.add_argument('--rust-file', default='src/cookbook.rs')
p.add_argument('--example-dir', default='grep/examples')
args = p.parse_args()
with codecs.open(args.rust_file, encoding='utf-8') as f:
rustcode = f.read()
for m in RE_EACH_CODE_BLOCK.finditer(rustcode):
lines = m.group(1).splitlines()
marker, codelines = lines[0], lines[1:]
m = RE_MARKER.search(marker)
if m is None:
continue
code = '\n'.join(RE_STRIP_COMMENT.sub('', line) for line in codelines)
fpath = os.path.join(args.example_dir, m.group(1))
with codecs.open(fpath, mode='w+', encoding='utf-8') as f:
print(code, file=f)
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