#!/usr/bin/env python3
'''
NAME
unwraplatex - Removes delimiters from LaTeX source text
SYNOPSIS
latex2img STDIN
DESCRIPTION
This filter reads LaTeX source text from STDIN and removes the
surrounding \[ and \] delimiters.
'''
import re, sys
sys.stdout.write(re.sub("(?s)\A(?:\\\\\[\s*)?(.*?)(?:\\\\\])?\Z", "\\1", sys.stdin.read().rstrip()))
# NOTE append endline in result to prevent 'no output from filter' warning
sys.stdout.write("\n")