f_regexr.ihlp

是一个经济学管理应用软件 很难找的 但是经济学学生又必须用到

{* *! version 1.0.0  20may2005}{...}
{phang}
{cmd:regexr(}{it:s1}{cmd:,}{it:re}{cmd:,}{it:s2}{cmd:)} replaces the first
	substring within {it:s1} that matches {it:re} with {it:s2} and
	returns the resulting string.  If {it:s1} contains no substring that
	matches {it:re}, the unaltered {it:s1} is returned.{p_end}