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- *debugger.txt* For Vim version 6.0. Last change: 2001 Sep 03
-
-
- VIM REFERENCE MANUAL by Gordon Prieur
-
-
- Debugger Support Features *debugger-support*
-
- 1. Debugger Features |debugger-features|
- 2. Vim Compile Options |debugger-compilation|
- 3. Integrated Debuggers |debugger-integration|
-
- {Vi does not have any of these features}
-
- ==============================================================================
- 1. Debugger Features *debugger-features*
-
- The following features are available for an integration with a debugger or
- an Integrated Programming Environment (IPE) or Integrated Development
- Environment (IDE):
-
- Alternate Command Input |alt-input|
- Debug Signs |debug-signs|
- Debug Source Highlight |debug-highlight|
- Message Footer |gui-footer|
- Balloon Evaluation |balloon-eval|
-
- These features were added specifically for use in the Motif version of gvim.
- However, the |alt-input| and |debug-highlight| were written to be usable in
- both vim and gvim. Some of the other features could be used in the non-GUI
- vim with slight modifications. However, I did not do this nor did I test the
- reliability of building for vim or non Motif GUI versions.
-
-
- 1.1 Alternate Command Input *alt-input*
-
- For Vim to work with a debugger there must be at least an input connection
- with a debugger or external tool. In many cases there will also be an output
- connection but this isn't absolutely necessary.
-
- The purpose of the input connection is to let the external debugger send
- commands to Vim. The commands sent by the debugger should give the debugger
- enough control to display the current debug environment and state.
-
- The current implementation is based on the X Toolkit dispatch loop and the
- XtAddInput() function call.
-
-
- 1.2 Debug Signs *debug-signs*
-
- Many debuggers mark specific lines by placing a small sign or color highlight
- on the line. The |:sign| command lets the debugger set this graphic mark. Some
- examples where this feature would be used would be a debugger showing an arrow
- representing the Program Counter (PC) of the program being debugged. Another
- example would be a small stop sign for a line with a breakpoint. These visible
- highlights let the user keep track of certain parts of the state of the
- debugger.
-
- This feature can be used with more than debuggers, too. An IPE can use a sign
- to highlight build errors, searched text, or other things. The sign feature
- can also work together with the |debug-highlight| to ensure the mark is
- highly visible.
-
- Debug signs are defined and placed using the |:sign| command.
-
-
- 1.3 Debug Source Highlight *debug-highlight*
-
- This feature allows a line to have a predominant highlight. The highlight is
- intended to make a specific line stand out. The highlight could be made to
- work for both vim and gvim, whereas the debug sign is, in most cases, limited
- to gvim. The one exception to this is Sun Microsystem's dtterm. The dtterm
- from Sun has a "sign gutter" for showing signs.
-
-
- 1.4 Message Footer *gui-footer*
-
- The message footer can be used to display messages from a debugger or IPE. It
- can also be used to display menu and toolbar tips. The footer area is at the
- bottom of the GUI window, below the line used to display colon commands.
-
- The display of the footer is controlled by the 'guioptions' letter 'F'.
-
-
- 1.5 Balloon Evaluation *balloon-eval*
-
- This feature allows a debugger, or other external tool, to display dynamic
- information based on where the mouse is pointing. The purpose of this feature
- was to allow Sun's Visual WorkShop debugger to display expression evaluations.
- However, the feature was implemented in as general a manner as possible and
- could be used for displaying other information as well.
-
- The Balloon Evaluation has some settable parameters too. The font list and
- colors can be set via X resources (XmNballoonEvalFontList,
- XmNballoonEvalBackground, and XmNballoonEvalForeground).
- The 'balloondelay' option sets the delay before an attempt is made to show a
- balloon.
- The 'ballooneval' option needs to be set to switch it on.
-
- Balloon evaluation is only available when compiled with the |+balloon_eval|
- feature.
-
- The Balloon evaluation functions are also used to show a tooltip for the
- toolbar. The 'ballooneval' option does not need to be set for this. But the
- other settings apply.
-
- ==============================================================================
- 2. Vim Compile Options *debugger-compilation*
-
- The debugger features were added explicitly for use with Sun's Visual
- WorkShop Integrated Programming Environment (ipe). However, they were done
- in as generic a manner as possible so that integration with other debuggers
- could also use some or all of the tools used with Sun's ipe.
-
- The following compile time preprocessor variables control the features:
-
- Alternate Command Input ALT_X_INPUT
- Debug Glyphs FEAT_SIGNS
- Debug Highlights FEAT_SIGNS
- Message Footer FEAT_FOOTER
- Balloon Evaluation FEAT_BEVAL
-
- The first integration with a full IPE/IDE was with Sun Visual WorkShop. To
- compile a gvim which interfaces with VWS set the following flag, which sets
- all the above flags:
-
- Sun Visual WorkShop FEAT_SUN_WORKSHOP
-
- ==============================================================================
- 3. Integrated Debuggers *debugger-integration*
-
- Currently the only fully integrated debugger/IPE/IDE is Sun's Visual WorkShop
- Integrated Programming Environment.
-
- vim:tw=78:sw=4:ts=8:ft=help:norl:
-