/usr/local/stat_watch/includes/ Current File: //usr/local/stat_watch/includes/util.shf
#! /bin/bash

function fn_file_path {
### Given a file (whether or not with full path), populate the variables "$s_FILE" and "$s_DIR" with the file and the directory
### The problem with realpath and readlink is that if the file is a symlink, then it will give us the path to the file that it links to. We don't want that.
### This gives us the real path to the directory, but keeps the filename
	local v_FILE="$1"
	### If the file name ends in a slash, remove that slash
	if [[ "${v_FILE: -1}" == "/" ]]; then
		v_FILE="${v_FILE:0:${#v_FILE}-1}"
	fi
	### Separate out the file name from the path
	s_FILE="${v_FILE##*/}"
	### Find the length of the path
	local v_DIR_LEN=$(( ${#v_FILE} - ${#s_FILE} - 1 ))
	if [[ "$v_DIR_LEN" -le 0 ]]; then
		if [[ "${v_FILE:0:1}" == "/" ]]; then
			### if we were given a full path and the dir length is zero, the parent must be "/"
			s_DIR="/"
		else
			### If no path was given, let's find it
			s_DIR="$( pwd )"
		fi
	else
		### If a path was given, we'll find out what it really is
		s_DIR="${v_FILE:0:$v_DIR_LEN}"
	fi
	### find the real path
	local s_DIR2="$( readlink "$s_DIR" 2> /dev/null )"
	if [[ -n "$s_DIR2" ]]; then
		s_DIR="$s_DIR2"
	fi
}

function fn_sanitize {
### Given a variable that we're goingg to run through an egrep, escape all special characters
	local v_OUTPUT="${1//\\/\\\\}"
	v_OUTPUT="${v_OUTPUT//\*/\\*}"
	v_OUTPUT="${v_OUTPUT//\./\\.}"
	v_OUTPUT="${v_OUTPUT//[/\\[}"
	v_OUTPUT="${v_OUTPUT//|/\\|}"
	v_OUTPUT="${v_OUTPUT//\?/\\?}"
	v_OUTPUT="${v_OUTPUT//\(/\\(}"
	v_OUTPUT="${v_OUTPUT//)/\\)}"
	v_OUTPUT="${v_OUTPUT//$/\\$}"
	v_OUTPUT="${v_OUTPUT//+/\\+}"
	v_OUTPUT="${v_OUTPUT//^/\\^}"
	v_OUTPUT="${v_OUTPUT//{/\\{}"
	echo -n "$v_OUTPUT"
}