#!/bin/sh

grep "\
\(^$1[,;]\)\|\(^$1 \+\)\|\(^$1$\)\|\
\( \+$1[,;]\)\|\( \+$1 \+\)\|\( \+$1$\)\|
\([,;]$1[,;]\)\|\([,;]$1 \+\)\|\([,;]$1$\)"
