#!/bin/bash

OLDIFS=$IFS
IFS=$'\n'       # make newlines the only separator

declare -a exprs=("\\\"([^\\\"]+)\\\"|“\1”" "\?|？" "\:|：" "\*|＊*" ">|＞" "<|＜" "\||｜")
sedexpr=""
grepexpr="("

for i in "${exprs[@]}"; do
	sedexpr+="s|"$i"|g; "
	grepexpr+="$( cut -d '|' -f 1 <<< "$i" )|"
done

sedexpr="${sedexpr::-1}"
grepexpr="${grepexpr::-1})"

for path in $(find "$(pwd)" -type f); do
	file=$( basename "$path" )
	[[ ! $( grep -E "$grepexpr" 2>/dev/null <<< "$file" ) ]] && continue

	while true; do
		question="The following command is about to run: $ mv \"$file\" \"$( sed -r "$sedexpr" <<< "$file" )\""$'\n'"Is this okay [y/n]? "
		read -p "$question" yn
		case $yn in
		    [Yy]* ) mv "$file" "$( sed -r "$sedexpr" <<< "$file" )"; break;;
		    [Nn]* ) break;;
		    * ) echo "Please answer yes or no.";;
		esac
	done

done

IFS=$OLDIFS

# YOU CAN MAKE THE FILES GLOBAL THOUGH BY JUST REMOVING THE basename CLAUSE, SO DO THAT IF YOU GET ANNOYED AGAIN
# MAKE IT WORK WITH DIRECTORIES, AS WELL AS ABSOLUTE FILEPATHS (currently you have to run it from the folder of the offending song)