Latex 自定义命令：用于一些特殊单词的显示

usepackage{xspace}

ewcommand{ie}{{emph{i.e.}},xspace}

ewcommand{viz}{{emph{viz.}},xspace}

ewcommand{eg}{{emph{e.g.}},xspace}

ewcommand{etc}{etc.}

ewcommand{etal}{{emph{et al.}}}

ewcommand{GH}{{sc GitHub}xspace}

ewcommand{Tvis}{{sc Travis CI}xspace}

ewcommand{Tvi}{{sc Travis}xspace}

ewcommand{CB}{{sc CloudBees}xspace}

ewcommand{CCI}{{sc CircleCI}xspace}

ewcommand{DO}{{sc DevOps}xspace}

ewcommand{Perc}{{sc Perceval}xspace}

ewcommand{GLab}{{sc GrimoireLab}xspace}

ewcommand{GHT}{{sc GHTorrent}xspace}

ewcommand{TT}{{sc TravisTorrent}xspace}

ewcommand{CI}{{$mathcal{CI}$}xspace}

ewcommand{	dd}{{$mathcal{TDD}$}xspace}

ewcommand{CI}{{$m{mathcal{CI}}$}xspace}

ewcommand{PR}{{$mathcal{PR}$}xspace}

ewcommand{PRs}{{$mathcal{PR}$s}xspace}

ewcommandhead[1]{
oindent{underline{f{#1}}:}}

ewcommand{mypara}[1]{vspace{4 mm} 
oindent{underline {f #1} vspace{2mm}}}