/
(?#leftside)[a-zA-Z][a-zA-Z0-9]*((\s)*\[(\s)*([0-9]+|[a-zA-Z][a-zA-Z0-9]*)((\s)*[+*\/-](\s)*([0-9]+|[a-zA-Z][a-zA-Z0-9]*))*(\s)*\])?(?#rightside)(\s)*=(\s)*(-)?([0-9]+|[a-zA-Z][a-zA-Z0-9]*((\s)*\[(\s)*([0-9]+|[a-zA-Z][a-zA-Z0-9]*)((\s)*[+*\/-](\s)*([0-9]+|[a-zA-Z][a-zA-Z0-9]*))*(\s)*\])?)((\s)*[+*\/-](\s)*([0-9]+|[a-zA-Z][a-zA-Z0-9]*((\s)*\[(\s)*([0-9]+|[a-zA-Z][a-zA-Z0-9]*)((\s)*[+*\/-](\s)*([0-9]+|[a-zA-Z][a-zA-Z0-9]*))*(\s)*\])?))*(\s)*;
/
mg