%% \ifjobname

\usepackage {boolean}

\edef \@jobname {\jobname}

%% Simple equality
\def \job@eattwo #1#2{}
\def \ifjobname #1{%
   \edef \job@tmp {\expandafter \string \csname x#1\endcsname}%
   \edef \job@name {\expandafter \job@eattwo \job@tmp}%
   \ifxbool{\@jobname}{\job@name}%
}

%% 

\newtoks \job@temptoken

\def \ifjob@iffix #1#2{%
   \edef \@tmp {\expandafter \string \csname x#2\endcsname}%
   \edef \job@name {\expandafter \job@eattwo \@tmp}%
   \job@temptoken{\def \@match ##1}%
   \@temptokena={##2\relax ##3\relax
           {\def \tmp@prefix {##1}\def \tmp@suffix {##2}\def \tmp@left
           {##3}}}% 
   \let \arg@one \job@name%
   \edef \@tmp{\the \job@temptoken\job@name\the \@temptokena}\@tmp
   \edef \@tmp{\noexpand\@match \@jobname \relax \job@name \relax \relax}\@tmp
   #1}

\def \job@infix {\ifxbool{\tmp@left}{\arg@one}}
\def \job@suffix
     {\AND{\ifxbool{\tmp@left}{\arg@one}}{\ifxbool{\empty}{\tmp@suffix}}} 
\def \job@prefix
     {\AND{\ifxbool{\tmp@left}{\arg@one}}{\ifxbool{\empty}{\tmp@prefix}}} 


\newcommand {\ifjobinfix} {\ifjob@iffix {\job@infix}}
\newcommand {\ifjobsuffix}{\ifjob@iffix {\job@suffix}}
\newcommand {\ifjobprefix}{\ifjob@iffix {\job@prefix}}