Topic       : GFA-Basic Editor
Author      : Lonny Pursell
Version     : GBE.HYP v3.74 (12/31/2023)
Subject     : Programming/Documentation
Nodes       : 171
Index Size  : 4296
HCP-Version : 3
Compiled on : Atari
@charset    : atarist
@lang       : 
@default    : Default
@help       : STG Help
@options    : +g -i -s +z
@width      : 75
@hostname   : THING   
@hostname   : STRNGSRV
@hostname   : HIGHWIRE
@hostname   : CAB     
View Ref-FileDelete line(s) of code in various ways.

#DL*       Toggle deletion on/off (if not found deletion is off by default)
#DL1       Delete 1 line. (line directly after the command)
#DL?       Delete all PRINT statements. (PRINT # is not removed)
#DL@ proc  Delete a 'procedure' and all calls to it.
#DL+       Start multi-line deletion.
#DL-       End multi-line deletion.
#DL~       Delete unused procedures (that are never called).
#DL0       Delete empty procedures (that are called).
#DL<       Delete all LOG_xxx commands.

Example:

REM #DL*         !on
REM #DL?         !kill print lines
REM #DL~         !remove unused procedures
REM #DL@ debug   !poof this proc
REM #DL1
REM #DL0
OUT 2,7          !this line is removed
PRINT "this line is removed"
@db("this gets zapped too")
REM #DL+
COLOR 1          !these 2 lines get wiped out
PLOT 0,0
REM #DL-
LINE 0,0,319,199
@ok
@debug("test")
@empty          !removed, since the procedure contains no code
EDIT
PROCEDURE debug(t$) !this proc gets zapped
  PRINT t$
RETURN
PROCEDURE ok
  BOUNDARY 0
RETURN
PROCEDURE dummy !removed (never called)
  CLS
RETURN
PROCEDURE empty !removed since it contains no code, but it's called
RETURN

Note: #DL~ will not remove procedures which contain DATA or DEFFN lines as
      there is no easy way to determine if they are used.