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authorKarl Berry <karl@freefriends.org>2006-01-09 00:45:48 +0000
committerKarl Berry <karl@freefriends.org>2006-01-09 00:45:48 +0000
commit5dc602d16c5be2fd035b254ca23484a90aebd6dc (patch)
tree72efb15fba318cc2096a8cc6999ed3fa0bff317d /Master/texmf-dist/doc/metapost/base/source/ctabbing.sty
parentb4fc5f639874db951177ec539299d20908adb654 (diff)
doc 5
git-svn-id: svn://tug.org/texlive/trunk@81 c570f23f-e606-0410-a88d-b1316a301751
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+
+% The ctabbing environment is a centered tabbing environment suitable for
+% displaying program fragments. The vertical spacing is exactly like that
+% for normal text in a center environment. This is achieved by setting
+% \@minipagetrue to fool \tabbing into thinking that it starts a minipage
+% and should therefore avoid all vertical space at the top. (Note that any
+% space at all would defeat the \vtop command in \ctabbing.) The
+% \vskip-\lastskip and \prevdepth saving commands avoid extra space after
+% \endtabbing
+
+\newdimen\ct@pd
+
+\def\ctabbing{\center\leavevmode\vtop\bgroup\@minipagetrue\begingroup\tabbing}
+
+\def\endctabbing{\endtabbing\endgroup\vskip-\lastskip
+ \global\ct@pd\prevdepth \egroup
+ \endcenter \global\prevdepth\ct@pd}