nnn is the line number and filename is the filename of the TeX source.

You can automate the generation of source specials by using the srcltx package which is a part of the WinEdt(1) distribution.

---------- Footnotes ----------

(1) ftp://ftp.dante.de/tex-archive/systems/win32/winedt

How to search forward

Forward search is initiated by specifying the command line switch --find-src-special (see Command Line.).

Most often you will use an editor to initiate a forward search. For example, in WinEdt you can do it like this:

1. Open the Menu Setup window with the command Options|Menu Setup....
2. Go to the Main Menu page.
3. Double-click the &Accessories item.
4. Select the DVI &Search item.
5. Enter the following information:

   Utility

   yap.exe -1 -s "%l %n%t" "%P\%N.dvi"

   Caption

   YAP

   Start in

   %P

   Requires file:

   %P\%N.dvi

6. Open a LaTeX document which has been prepared for source specials.
7. Compile the document (Accessories|LaTeX).
8. Initiate DVI Search (Accessories|DVI Search).

Initiating Inverse Search

Provided that the currently opened DVI document contains source specials, you can do an inverse search like this:

1. Define the editor command line (see Inverse Search Settings.).
2. Move the cursor over a paragraph that you want to edit.
3. Press <e> (alternatively, you can select Edit Source from the context menu).

Graphics Output

YAP can display the following graphics formats:

EPS

Encapsulated PostScript

BMP

Device-independant Bitmap

Encapsulated PostScript

YAP displays EPS figures with the help of GhostScript. You must have a working GhostScript installation and YAP needs to know the location of the GhostScript program (gsdll32.dll).

The easiest way to include EPS figures is through the graphics package:

\usepackage{graphics}
\begin{document}
\includegraphics{foo.eps}
\end{document}

Windows Bitmap (BMP) Files

YAP can display Windows Bitmap Files.

The easiest way to include BMP graphics is through the graphics package:

\usepackage{graphics}
\begin{document}
\includegraphics[width=2in,height=1in]{foo.bmp}
\end{document}

YAP Tools

YAP provides several tools for browsing the DVI document.

src Browser	Browsing Source Specials
Hand Tool	Hand Tool
Magnifying Glasses	Magnifying Glasses

Browsing Source Specials

The command Tools|Source Specials... opens the the Source Specials windows.

Source Specials Window

Source Specials Window

Source Specials Window

This window lists all source specials found in the current DVI document.

Goto

This button brings into view the portion of the DVI document which contains the selected source special

Edit Source

This button invokes an editor to edit the TeX source corresponding to the selected source special.

Close

This button closes the window.

Hand Tool

The hand tool allows you to scroll the page by moving the cursor while the left mouse button is pressed. You select the Hand Tool with the command Tools|Hand Tool or by clicking the corresponding button in the toolbar.

Magnifying Glasses

The Magnifying Glass allows you to view a small part of the unshrunk page. You select this tool with the command Tools|Magnifying Glass or by clicking the corresponding button in the toolbar.

You can choose between three sizes:

1. Pressing the left mouse button activates the small magnifying glass.
2. Pressing the left mouse button in combination with the <Shift> key activates the medium sized magnifying glass.
3. Pressing the left mouse button in combination with the <Control> key activates the large magnifying glass.

The three magnifying glasses are fully customizable (see Magnifying Glass.).

You can specify the power of the magnifying glass by entering a numerical prefix argument. The argument is interpreted as a shrink factor for the text inside the magnifying glass. A shrink factor of 1 (the default) results in a maximum magnification.

Keyboard Map

Numerical Prefix

<0>

<1>

<2>

<3>

<4>

<5>

<6>

<7>

<8>

<9>

Adds a digit to the numerical prefix.

<BACK>

Removes the last digit from the numerical prefix.

<->

Negates the numerical prefix.

Zooming

prefix+<+>

Zooms in (unshrinks the page).

prefix+<->

Zooms out (shrinks the page).

Changing Pages

prefix+<g>

Opens the Goto Page dialog box if no prefix argument was entered. Otherwise goes to the specified page.

prefix+<PgUp>

prefix+<b>

prefix+<p>

prefix+<h>

prefix+<Del>

Goes to previous page.

prefix+<PgDn>

prefix+<f>

prefix+<n>

Goes to the next page.

<Ctrl>+<Home>

Goes to the first page.

<Ctrl>+<End>

Goes to the last page.

Scrolling

<End>

Scrolls the window to the bottom of the page.

<Home>

<^>

Scrolls the window to the top of the page.

<Left>

Scrolls the windows left a little bit.

<Shift>+<Left>

<l>

Scrolls the window left.

<Right>

Scrolls the window right a little bit.

<Shift>+<Right>

<r>

Scrolls the window right.

<Space>

Scrolls the window down. Goes to the next page, if at the bottom of the current page.

<Up>

Scrolls the windows up a little bit.

<Shift>+<Up>

<u>

Scrolls the window up.

<Down>

Scrolls the windows down a little bit.

<Shift>+<Down>

<d>

Scrolls the window down.

Misc

<?>

Show the keyboard map.

<e>

Start a text editor to edit the TeX source under the mouse cursure (i. e. perform an inverse search).

<F>

<Ctrl>+<O>

Open a new DVI Document.

<Ctrl>+<P>

Send the DVI document to the printer.

<q>

<Ctrl>+<c>

<Ctrl>+<d>

Quit the application.

Customizing YAP

Options Dialog Box

User Interface Property Page

The User Interface property page allows you to customize the Look & Feel of YAP.

Maintain vertical position

Select this checkbox to cause YAP to keep the vertical scroll position at a change of page.

Maintain horizontal position

Select this checkbox to cause YAP to keep the horizontal scroll position at a change of page.

Magnifying Glass Propery Page

This property page allows you to customize the three magnifying glasses.

Width

Enter the width (in screen pixels) of the rectangular magnifying glass window.

Height

Enter the height (in screen pixels) of the rectangular magnifying glass window.

Shrink Factor

Specify the shrink factor to be used in the magnifying glass window. The shrink factor specifies the power of the magnifying glass. A shrink factor of 1 results in a maximum magnification.

Display Property Page

The Display property page allows you to change various display settings.

Mode

Specify the METAFONT mode for the display.

The Mode list field contains a list of known METAFONT modes. This information is needed, when new PK fonts are to be generated. In principle, it doesn't matter what mode name you select here. But it's recommended, that you use the same mode name as for the printer, since this reduces the invocations of the font-generator.

Shrink Factor

Specify the default shrink factor.

Paper Size

Specify the paper type.

Orientation

Specify the orientation of the paper.

Printer Property Page

The Printer property page allows yoy to change various printer settings.

Mode

Specify the METAFONT mode for the printer.

The Mode list field contains a list of known METAFONT modes. This information is needed, when new PK fonts are to be generated. You must select a mode, that matches your printer resolution.

x-shift, y-shift

Specify the the print offset.

For some old printer models it may be necessary to adjust the the print offset (i.e. the position, where printing begins). x-shift/y-shift gives the amount of pixels, an output page has to be shifted right/down.

Inverse Search Property Page

Command

Specify the command line which YAP shall execute after a successful inverse search operation (see Initiating Inverse Search.).

The command may contain the following placeholders:

%f

Expands to the name of the source file.

%l

Expands to the line number in the source file.

Examples

Enter something like this, if you are using the WinEdt TeX shell:

"c:\Program Files\WinEdt\winedt.exe" "[Open('%f');SelLine(%l,8)]"

Enter something like this, if you use GNU Emacs:

c:\emacs\bin\gnuclientw.exe +%l %f

GhostScript Property Page

GhostScript DLL

Specify the full pathname of the GhostScript interpreter library gsdll32.dll.

Telling YAP About PostScript Fonts

YAP consults several font mapping files when a missing PK font has to be generated from a PostScript Type 1 font:

dvips\config\config.ps

YAP first consults the Dvips configuration file.

miktex\config\miktex.map

YAP then consults the MiKTeX font mapping file.

Command line switches

The general YAP command line syntax is

yap [options] [dvifile]

The following options are recognized:

--find-src-special srcspecial

-s srcspecial

Initiate a forward search (see Forward and Inverse Search.). The syntax for srcspecial is NNFILENAME (i.e. line number followed by source file name). See the example below.

--single-instance

-1

Use an already opened YAP application window (if one exists). This flag prevents multiple YAP applications instances.

--unregister

Remove YAP related settings from the Windows Registry

Example

You want YAP to do a forward search to the DVI location corresponding to line 41 of the source file mydoc.tex. The name of the DVI file is mydoc.dvi. The forward search is initiated like this:

yap -s 41mydoc.tex mydoc.dvi

If you already have an open YAP application instance, and you don't want to start another instance, then add the -1 flag:

yap -1 -s 41mydoc.tex mydoc.dvi

Index