YAP
:''This article is about "Yet Another Previewer", a software program. For the island in Micronesia, see
Yap.
YAP (which stands for
Yet Another Previewer) is the acronym used for two document previewing applications.
One YAP is a
PostScript previewer. It is used to dynamically edit and re-render PostScript as if one was editing a file, unlike the actual PostScript interpreter itself (such as
ghostscript), which deals with PostScript input interactively from a user.
YAP first was bundled with the NeXT demos package of
NeXTSTEP, which was also bundled with
OPENSTEP. It was not carried into its incarnation as
Mac OS X, presumably because of PostScript's lessened importance with the OS X subsystems relying on Display PDF instead.
 |
YAP (from MiKTeX) running under Windows XP |
YAP is also the name of the
DVI viewer included on the widely used
MiKTeX TeX distribution for the
Microsoft Windows platform, however the NeXT application and the MiKTeX application are different. YAP allows zooming in and out by several integer factors, besides having a "magnifying glass" feature for local zooming. It supports
PostScript specials (for instance, rendering
LaTeX documents with
PSTricks). Since YAP supports
inverse search (when the dvi file was compiled with
source specials), it can be configured to launch a LaTeX editor for the source file placing cursor on the corresponding word under the cursor in YAP. YAP is
free software published under the
GNU GPL. It was written by Christian Schenk.
