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#!/usr/bin/env python
import argparse
import json
from os import path
import sys
from jinja2 import Environment, FileSystemLoader
parser = argparse.ArgumentParser()
parser.add_argument('--latex', action='store_true')
parser.add_argument('template', nargs='?')
parser.add_argument('data', nargs='?')
args = parser.parse_args()
if args.latex:
env = Environment(
block_start_string='%%',
block_end_string='%%',
variable_start_string='<',
variable_end_string='>',
comment_start_string='###',
comment_end_string='###',
)
else:
env = Environment()
if args.template:
dirname, basename = path.split(args.template)
env.loader = FileSystemLoader(dirname)
template = env.get_template(basename)
if args.data:
with open(args.data, 'rb') as f:
data = json.load(f)
else:
data = json.load(sys.stdin)
else:
source = sys.stdin.read()
template = env.from_string(source.decode('utf-8'))
data = {}
env.loader = FileSystemLoader('.')
output = template.render(data)
sys.stdout.write(output.encode('utf-8'))
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