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Diffstat (limited to 'macros/plain/contrib/blanks/blanks.tex')
-rw-r--r-- | macros/plain/contrib/blanks/blanks.tex | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/macros/plain/contrib/blanks/blanks.tex b/macros/plain/contrib/blanks/blanks.tex new file mode 100644 index 0000000000..f15cd37404 --- /dev/null +++ b/macros/plain/contrib/blanks/blanks.tex @@ -0,0 +1,34 @@ +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% Fill-in-the-blank macros +% Hal Varian +% August 19, 1987 +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + + +%list processing routines taken from TeXbook, p. 310-11 + +\def\dolist{\afterassignment\dodolist\let\next= } +\def\dodolist{\ifx\next\endlist \let\next\relax + \else \\\let\next\dolist \fi + \next} +\def\endlist{\endlist} + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +%print out answers or not? +\newif\ifDoAnswers\DoAnswerstrue + +%See if next token is a space. If it is, set a low penalty for +%line breaking. Set box 0 to be the next token. If we should +%do answers, underscore box 0, back up and print box 0. Otherwise +%just underscore box 0. +\def\\{\expandafter\if\space\next\penalty0\fi\setbox0=\hbox{\next}\ifDoAnswers + \underscore\llap{\raise2pt\box0}\else\underscore\fi} + +%Underscore -- put in strut so there is enough space for handwriting. +\def\underscore{\bigstrut\vrule height 0pt depth.5pt width\wd0} +\def\bigstrut{\hbox{\vrule height 16pt width 0pt}} + +\def\Ans#1{\space{\AnsFont {\dolist#1\endlist}\underscore}} + +%%% ----cutting here would not be a bad idea----------------------- |