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<a class="Constant" href="debugger.html" name="debugger.txt">debugger.txt</a> For <span class="Identifier">Vim version 8.0.</span> Last change: 2005 Mar 29<br>
<br>
<br>
<span class="Identifier">VIM REFERENCE MANUAL by Gordon Prieur</span><br>
<br>
<br>
Debugger Support Features <a class="Constant" href="debugger.html#debugger-support" name="debugger-support">debugger-support</a><br>
<br>
1. Debugger Features <a class="Identifier" href="debugger.html#debugger-features">debugger-features</a><br>
2. Vim Compile Options <a class="Identifier" href="debugger.html#debugger-compilation">debugger-compilation</a><br>
3. Integrated Debuggers <a class="Identifier" href="debugger.html#debugger-integration">debugger-integration</a><br>
<br>
<span class="Special">{Vi does not have any of these features}</span><br>
<br>
<span class="PreProc">==============================================================================</span><br>
1. Debugger Features <a class="Constant" href="debugger.html#debugger-features" name="debugger-features">debugger-features</a><br>
<br>
The following features are available for an integration with a debugger or<br>
an Integrated Programming Environment (IPE) or Integrated Development<br>
Environment (IDE):<br>
<br>
Alternate Command Input <a class="Identifier" href="debugger.html#alt-input">alt-input</a><br>
Debug Signs <a class="Identifier" href="debugger.html#debug-signs">debug-signs</a><br>
Debug Source Highlight <a class="Identifier" href="debugger.html#debug-highlight">debug-highlight</a><br>
Message Footer <a class="Identifier" href="debugger.html#gui-footer">gui-footer</a><br>
Balloon Evaluation <a class="Identifier" href="debugger.html#balloon-eval">balloon-eval</a><br>
<br>
These features were added specifically for use in the Motif version of gvim.<br>
However, the <a class="Identifier" href="debugger.html#alt-input">alt-input</a> and <a class="Identifier" href="debugger.html#debug-highlight">debug-highlight</a> were written to be usable in<br>
both vim and gvim. Some of the other features could be used in the non-GUI<br>
vim with slight modifications. However, I did not do this nor did I test the<br>
reliability of building for vim or non Motif GUI versions.<br>
<br>
<br>
1.1 Alternate Command Input <a class="Constant" href="debugger.html#alt-input" name="alt-input">alt-input</a><br>
<br>
For Vim to work with a debugger there must be at least an input connection<br>
with a debugger or external tool. In many cases there will also be an output<br>
connection but this isn't absolutely necessary.<br>
<br>
The purpose of the input connection is to let the external debugger send<br>
commands to Vim. The commands sent by the debugger should give the debugger<br>
enough control to display the current debug environment and state.<br>
<br>
The current implementation is based on the X Toolkit dispatch loop and the<br>
XtAddInput() function call.<br>
<br>
<br>
1.2 Debug Signs <a class="Constant" href="debugger.html#debug-signs" name="debug-signs">debug-signs</a><br>
<br>
Many debuggers mark specific lines by placing a small sign or color highlight<br>
on the line. The <a class="Identifier" href="sign.html#:sign">:sign</a> command lets the debugger set this graphic mark. Some<br>
examples where this feature would be used would be a debugger showing an arrow<br>
representing the Program Counter (PC) of the program being debugged. Another<br>
example would be a small stop sign for a line with a breakpoint. These visible<br>
highlights let the user keep track of certain parts of the state of the<br>
debugger.<br>
<br>
This feature can be used with more than debuggers, too. An IPE can use a sign<br>
to highlight build errors, searched text, or other things. The sign feature<br>
can also work together with the <a class="Identifier" href="debugger.html#debug-highlight">debug-highlight</a> to ensure the mark is<br>
highly visible.<br>
<br>
Debug signs are defined and placed using the <a class="Identifier" href="sign.html#:sign">:sign</a> command.<br>
<br>
<br>
1.3 Debug Source Highlight <a class="Constant" href="debugger.html#debug-highlight" name="debug-highlight">debug-highlight</a><br>
<br>
This feature allows a line to have a predominant highlight. The highlight is<br>
intended to make a specific line stand out. The highlight could be made to<br>
work for both vim and gvim, whereas the debug sign is, in most cases, limited<br>
to gvim. The one exception to this is Sun Microsystem's dtterm. The dtterm<br>
from Sun has a "sign gutter" for showing signs.<br>
<br>
<br>
1.4 Message Footer <a class="Constant" href="debugger.html#gui-footer" name="gui-footer">gui-footer</a><br>
<br>
The message footer can be used to display messages from a debugger or IPE. It<br>
can also be used to display menu and toolbar tips. The footer area is at the<br>
bottom of the GUI window, below the line used to display colon commands.<br>
<br>
The display of the footer is controlled by the <a class="Type" href="options.html#'guioptions'">'guioptions'</a> letter 'F'.<br>
<br>
<br>
1.5 Balloon Evaluation <a class="Constant" href="debugger.html#balloon-eval" name="balloon-eval">balloon-eval</a><br>
<br>
This feature allows a debugger, or other external tool, to display dynamic<br>
information based on where the mouse is pointing. The purpose of this feature<br>
was to allow Sun's Visual WorkShop debugger to display expression evaluations.<br>
However, the feature was implemented in as general a manner as possible and<br>
could be used for displaying other information as well.<br>
<br>
The Balloon Evaluation has some settable parameters too. For Motif the font<br>
list and colors can be set via X resources (XmNballoonEvalFontList,<br>
XmNballoonEvalBackground, and XmNballoonEvalForeground).<br>
The <a class="Type" href="options.html#'balloondelay'">'balloondelay'</a> option sets the delay before an attempt is made to show a<br>
balloon.<br>
The <a class="Type" href="options.html#'ballooneval'">'ballooneval'</a> option needs to be set to switch it on.<br>
<br>
Balloon evaluation is only available when compiled with the <a class="Identifier" href="various.html#+balloon_eval">+balloon_eval</a><br>
feature.<br>
<br>
The Balloon evaluation functions are also used to show a tooltip for the<br>
toolbar. The <a class="Type" href="options.html#'ballooneval'">'ballooneval'</a> option does not need to be set for this. But the<br>
other settings apply.<br>
<br>
Another way to use the balloon is with the <a class="Type" href="options.html#'balloonexpr'">'balloonexpr'</a> option. This is<br>
completely user definable.<br>
<br>
<span class="PreProc">==============================================================================</span><br>
2. Vim Compile Options <a class="Constant" href="debugger.html#debugger-compilation" name="debugger-compilation">debugger-compilation</a><br>
<br>
The debugger features were added explicitly for use with Sun's Visual<br>
WorkShop Integrated Programming Environment (ipe). However, they were done<br>
in as generic a manner as possible so that integration with other debuggers<br>
could also use some or all of the tools used with Sun's ipe.<br>
<br>
The following compile time preprocessor variables control the features:<br>
<br>
Alternate Command Input ALT_X_INPUT<br>
Debug Glyphs FEAT_SIGNS<br>
Debug Highlights FEAT_SIGNS<br>
Message Footer FEAT_FOOTER<br>
Balloon Evaluation FEAT_BEVAL<br>
<br>
The first integration with a full IPE/IDE was with Sun Visual WorkShop. To<br>
compile a gvim which interfaces with VWS set the following flag, which sets<br>
all the above flags:<br>
<br>
Sun Visual WorkShop FEAT_SUN_WORKSHOP<br>
<br>
<span class="PreProc">==============================================================================</span><br>
3. Integrated Debuggers <a class="Constant" href="debugger.html#debugger-integration" name="debugger-integration">debugger-integration</a><br>
<br>
One fully integrated debugger/IPE/IDE is Sun's Visual WorkShop Integrated<br>
Programming Environment.<br>
<br>
For Sun NetBeans support see <a class="Identifier" href="netbeans.html#netbeans">netbeans</a>.<br>
<br>
vim:tw=78:sw=4:ts=8:ft=help:norl:<br>
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