Kapitel 1. Perl Plugin

Debugging a perl script within kate

Kate Perl debugger at work


perldebug - Perl debugging

Debugger Commands

  l [ln|sub]  List source code            
  T           Stack trace
  - or .      List previous/current line  
  s [expr]    Single step [in expr]

  v [line]    View around line            
  n [expr]    Next, steps over subs

  f filename  View source in file         
  <CR/Enter>  Repeat last n or s

  /pattern/ ?patt?   Search forw/backw    
  r           Return from subroutine

  M           Show module versions        
  c [ln|sub]  Continue until position

Debugger controls:                        
  L           List break/watch/actions

  o [...]     Set debugger options        
  t [n] [expr] Toggle trace [max depth] ][trace expr]

  <[<]|{[{]|>[>] [cmd] Do pre/post-prompt 
    b [ln|event|sub] [cnd] Set breakpoint

  ! [N|pat]   Redo a previous command     
  B ln|*      Delete a/all breakpoints

  H [-num]    Display last num commands   
  a [ln] cmd  Do cmd before line

  = [a val]   Define/list an alias        
  A ln|*      Delete a/all actions

  h [db_cmd]  Get help on command        
  w expr      Add a watch expression

  h h         Complete help page          
  W expr|*    Delete a/all watch exprs

  |[|]db_cmd  Send output to pager        
  ![!] syscmd Run cmd in a subprocess

  q or ^D     Quit                       
  R           Attempt a restart

Data Examination:   

  expr     Execute perl code, also see: s,n,t expr

  x|m expr       Evals expr in list context, 
                 dumps the result or lists methods.

  p expr         Print expression (uses script's current package).

  S [[!]pat]     List subroutine names [not] matching pattern

  V [Pk [Vars]]  List Variables in Package. 
                 Vars can be ~pattern or !pattern.

  X [Vars]       Same as "V current_package [Vars]".
                 i class inheritance tree.

  y [n [Vars]]   List lexicals in higher scope <n>. 
                 Vars same as V.

  e     Display thread id     E Display all thread ids.

  start Will start the Debugger

Add CGI parameters to Command Line.