Italicising examples with linguex

Question

Could anyone tell me how examples can be italicised automatically using linguex? The first line of examples with glosses is already discussed here and works fine. I need italic font for the examples in the other environments, too (\ex. and \exi.), and for all lines of the \a., \b. sublists, etc).

Answer 1

This is quite difficult to do without digging into the code, as linguex is not set up for this. Here's one way that works. I've made a new macro \examplefont to set the style of the examples (so that the code doesn't hard-code italics. I've also set \eachwordone (the first line of a glossed example) to use the same font, but the gloss line (\eachwordtwo) is set to the upright font. To make sure the free translation of glossed items is also upright, you need to use the \glt macro

\documentclass{article}
\usepackage{linguex}

\newcommand*{\examplefont}{\itshape} % change this as needed
\renewcommand{\eachwordone}{\examplefont} % make \eachwordone match
\renewcommand{\eachwordtwo}{\normalfont}  % make gloss line upright
\renewcommand{\glt}{\normalfont} % use \glt for free translation

\makeatletter
\def\Exformat[#1]{%
   \settowidth{\currentlabel}{#1}%
   \begin{list}{\makebox[\labelwidth][l]{\normalfont#1}}{%
      \setlength{\leftmargin}{\currentlabel}%
      \listdecl%
      \if@noftnote\relax\else\addtolength{\topsep}{-.5\topsep}\fi
      \ifembedded\topsep=.3\Extopsep\else\topsep=\Extopsep\fi
   }%
   \ifindex\firstwordtrue\fi\item\examplefont{}}
\def\a.{\ifindex\firstwordtrue\fi
        \ifnum\theExDepth=0 \unembeddedtrue
        \trivex.\fi
     \stepcounter{ExDepth}%refstepcounter replaced 
     \begin{list}{\makebox[\labelwidth][l]{\normalfont% 
         \ifnum\theExDepth=1 \SubExLBr\Exalph{ABC}\SubExRBr%
          \else
           \ifnum\theExDepth=2 %
           \ifdim\currentlabel<\lessthanthousand%
           \ifalignSubEx 
              \llap{\hbox to \alignSubExnegindent{\ifunembedded%
                  \SubExLBr\Exalph{SubExNo}\SubExRBr
                  \else\SubExlabel\fi\hss}}%
            \else\SubExlabel\fi%
              \else\ifunembedded%
                  \SubSubExLBr\Exroman{SubExNo}\SubSubExRBr
                  \else\SubExlabel\fi\fi
            \else
             \ifnum\theExDepth=3 %
             \if@noftnote%\ifunembedded\mbox{$\bullet$!}\else 
                    \SubSubExLBr\Exroman{SubSubExNo}\SubSubExRBr
                    %\fi
               \else\Exarabic{SubSubExNo}\SubSubExRBr\fi
         \fi\fi\fi}}%
    {\labelsep\z@ 
     \ifnum\theExDepth=2\topsep .3\Extopsep\else\topsep 0pt\fi 
     \parsep\z@\itemsep\z@
     \ifnum\theExDepth=1 %
       \usecounter{ABC}%
       \settowidth{\currentlabel}{\ExLBr\Exarabic{ExNo}\ExRBr}%
       \listdecl%   
     \else
      \ifnum\theExDepth=2 %
         \usecounter{SubExNo}%
           \ifalignSubEx\ifdim\currentlabel<\lessthanthousand%
           \leftmargin\z@\else\leftmargin=\SubExleftmargin\fi%
           \else\leftmargin=\SubExleftmargin\fi%
         \else
            \ifnum\theExDepth=3 \usecounter{SubSubExNo}\fi
         \leftmargin=\SubSubExleftmargin%
         \fi
    \labelwidth=\leftmargin%
    \fi}%
    \ifnum\theExDepth=1 \setlength{\Exlabelwidth}{4em}\fi%
    %previous line added 2000/12/22
    \b.}

\def\newb.{\ifindex\firstwordtrue\fi
        \my@ifnextchar[{\newExitem}{\examplefont\item\testforgramm}}
\makeatother
\begin{document}
\ex.
\a.This is an example.
\b.Another example.
\a. Another one.
\b. Another other one.

\exg.
This is a glossed example\\
This is the gloss line\\
\glt`This is the translation'

\exi. This is an example.

\end{document}