{*
** ACE Integrated Development Environment: AIDE **
**
** Author: David J Benn
**   Date: 23rd,24th,28th-31st December 1993,
**	   1st-3rd,5th,6th,8th,10th-12th,
**	   14th,15th,17th,19th,23rd,24th January 1994,
**	   3rd,4th,6th,8th,12th,15th,26th,28th February 1994,
**	   1st,6th March 1994,
**	   3rd,4th,11th April 1994,
**	   31st July 1994,
**	   18th September 1994,
**	   2nd,9th October 1994
*}

'..version information
STRING vernum SIZE 5
vernum = "1.1"
version$ = "$VER: AIDE 1.1 (09.10.94)"

DEFLNG a-z

{*
** Menu Constants (prefixes: c=command, m=menu, i=menu item)
*}

'..basic values
CONST TRUE	 =-1&
CONST FALSE	 =0&
CONST NULL	 =0&

'..Object file types
CONST ASM	 =1
CONST OBJ	 =2
CONST EXE	 =3

'..Modes
CONST cDisable	 =0
CONST cEnable 	 =1
CONST cCheck	 =2

'..Project Menu
CONST mProject	 =1
CONST iNew	 =1
CONST iOpen	 =2
CONST iView	 =3
CONST iSep1.1	 =4
CONST iDelete	 =5
CONST iPrint	 =6
CONST iExecute	 =7
CONST iShell	 =8
CONST iSep1.2	 =9
CONST iAbout	 =10
CONST iQuit	 =11

'..Program Menu
CONST mProgram	 =2
CONST iSetSource =1
CONST iEdit	 =2
CONST iSep2.1	 =3
CONST iRun	 =4
CONST iRunInShell=5
CONST iSep2.2	 =6
CONST iCompile	 =7
CONST iMake	 =8
CONST iBuild	 =9
CONST iModule 	 =10
CONST iSep2.3	 =11
CONST iViewAsm	 =12
CONST iViewPrep	 =13
CONST iShowErrs	 =14

'..Compiler Menu
CONST mCompiler	 =3
CONST iPreProcess=1
CONST iBreak	 =2
CONST iComments  =3
CONST iIcon	 =4
CONST iListLines =5
CONST iOptimise  =6
CONST iWindow	 =7
CONST iSep3.1	 =8
CONST iSaveOpts	 =9

'..Linker
CONST mLinker	 =4
CONST iAddModule =1
CONST iRemModule =2
CONST iRemAllMod =3
CONST iSep4.1	 =4

'..Utilities
CONST mUtils	 =5
CONST iCalc	 =1
CONST iFD2BMAP	 =2
CONST iAB2ASCII  =3

'..Help
CONST mHelp	 =6
CONST iAIDEDoc	 =1
CONST iSep6.1	 =2
CONST iACEDoc	 =3
CONST iA68KDoc	 =4
CONST iBlinkDoc	 =5
CONST iSep6.2	 =6
CONST iACERef	 =7
CONST iACEWords	 =8
CONST iSep6.3	 =9
CONST iExamples	 =10
CONST iSep6.4	 =11
CONST iACEHist	 =12

'..Other stuff
CONST strSize	=80
CONST maxModules=10


{*
** Structure Definitions
*}

STRUCT program_info
  STRING   source_file SIZE strSize
  STRING   source_dir  SIZE strSize
  LONGINT  made
  SHORTINT module_count
  STRING   default_args
  STRING   xtn SIZE 5
END STRUCT

STRUCT config_info
  STRING editor SIZE strSize
  STRING viewer SIZE strSize
  STRING calc SIZE strSize
  STRING agdtool SIZE strSize
  STRING tmpdir SIZE strSize
  STRING docdir SIZE strSize
  STRING srcdir SIZE strSize
  STRING bltdir SIZE strSize
END STRUCT 

STRUCT options_info
  LONGINT preprocess
  LONGINT user_break
  LONGINT asm_comments
  LONGINT create_icon
  LONGINT list_lines
  LONGINT optimise
  LONGINT window_close
END STRUCT

STRUCT DateStamp
  LONGINT days
  LONGINT mins
  LONGINT ticks
END STRUCT

STRUCT FileInfoBlock
  longint fib_DiskKey
  longint fib_DirEntryType
  string  fib_FileName size 108
  longint fib_Protection
  longint fib_EntryType
  longint fib_Size
  longint fib_NumBlocks
  string  fib_Date size 12
  string  fib_Comment size 80
  string  fib_Reserved size 36
END STRUCT


{*
** Global Variables
*}

DECLARE STRUCT program_info prog
DECLARE STRUCT config_info config
DECLARE STRUCT options_info options

DIM module$(maxModules)
STRING default_command
ADDRESS main_wdw


{*
** Shared library function declarations (when used by more than one SUB)
** with their associated CONSTs.
*}

DECLARE FUNCTION SetWindowTitles(wdw&,wdw_title$,scr_title$) LIBRARY intuition
CONST  LEAVE=-1&


{*
** Subprogram declarations
*}

SUB fexists(STRING fname)
  OPEN "I",#255,fname
  if HANDLE(255) then
    fexists=TRUE
  else
    fexists=FALSE
  end if
  CLOSE #255
END SUB

SUB get_file_datestamp(STRING fname,ADDRESS ds_addr)
CONST   ACCESS_READ = -2&
LONGINT mylock
DECLARE STRUCT FileInfoBlock file_info
DECLARE STRUCT DateStamp ds,Date
DECLARE FUNCTION Lock&(filename$,accessmode&) LIBRARY dos
DECLARE FUNCTION UnLock(filelock&) LIBRARY dos
DECLARE FUNCTION Examine(filelock&,fib_ptr&) LIBRARY dos

  '..Return the datestamp of the file.
  '..No checking beyond a test for NULL lock.

  ds = ds_addr
  mylock = Lock(fname,ACCESS_READ) 

  if mylock <> NULL then
    Examine(mylock,file_info)
    Date = @file_info->fib_Date
    ds->days  = Date->days
    ds->mins  = Date->mins
    ds->ticks = Date->ticks
    UnLock(mylock)
  end if
END SUB

SUB SHORTINT datestamps_different(ADDRESS ds1_addr,ADDRESS ds2_addr)
DECLARE STRUCT DateStamp ds1,ds2

  '..Return TRUE if the datestamps of 2 files 
  '..are different.

  ds1 = ds1_addr
  ds2 = ds2_addr

  '..If one file doesn't exist but the
  '..other does, then the datestamps
  '..are different.
  IF (ds1 = NULL and ds2 <> NULL) or (ds1 <> NULL and ds2 = NULL) THEN 
     datestamps_different = TRUE
     EXIT SUB
  END IF

  '..If neither file exists, then the
  '..datestamps aren't different.
  IF ds1 = NULL and ds2 = NULL THEN
     datestamps_different = FALSE
     EXIT SUB
  END IF

  d1=ds1->days
  d2=ds2->days    
  m1=ds1->mins
  m2=ds2->mins    
  t1=ds1->ticks
  t2=ds2->ticks    

  if (d1<>d2) or (m1<>m2) or (t1<>t2) then
     datestamps_different=TRUE
  else
     datestamps_different=FALSE
  end if
END SUB

SUB SHORTINT older(ADDRESS ds1_addr,ADDRESS ds2_addr)
DECLARE STRUCT DateStamp ds1,ds2

  '..Return TRUE if first datestamp is older than second.
  ds1 = ds1_addr
  ds2 = ds2_addr

  '..If first file doesn't exist it can't
  '..be older than second.
  IF ds1 = NULL THEN
     older = FALSE
     EXIT SUB
  END IF

  '..If second file doesn't exist
  '..but the the first file does, 
  '..the first file must be older
  '..than the second.
  IF ds2 = NULL THEN 
     older = TRUE
     EXIT SUB
  END IF
  
  d1=ds1->days
  d2=ds2->days    
  m1=ds1->mins
  m2=ds2->mins    
  t1=ds1->ticks
  t2=ds2->ticks    

  IF (d1<d2) or (d1=d2 and m1<m2) or (d1=d2 and m1=m2 and t1<t2) THEN
     older = TRUE
  ELSE
     older = FALSE
  END IF  
END SUB

SUB STRING quote(STRING x)
'..enclose x in quotes
  quote = CHR$(34)+x+CHR$(34)
END SUB

SUB enable_misc_menu_items
SHARED prog, config
  '..Enable all menu items disabled by setup_menus
  '..whenever menus are reset.

  if config->calc<>"" then MENU mUtils,iCalc,cEnable

  '..Don't enable Program menu items if there's no source file set!
  if prog->source_file = "" then exit sub

  MENU mProgram,iEdit,cEnable
  MENU mProgram,iRun,cEnable
  MENU mProgram,iRunInShell,cEnable
  MENU mProgram,iArguments,cEnable
  MENU mProgram,iCompile,cEnable
  MENU mProgram,iMake,cEnable
  MENU mProgram,iBuild,cEnable
  MENU mProgram,iModule,cEnable
  MENU mProgram,iViewAsm,cEnable
  MENU mProgram,iViewPrep,cEnable
  MENU mProgram,iShowErrs,cEnable  
END SUB

SUB menus_off
  for i=mProject to mHelp
    MENU i,0,cDisable
  next
END SUB

SUB menus_on
  for i=mProject to mHelp
    MENU i,0,cEnable
  next
END SUB

SUB show_free_mem(ADDRESS wdw)
SHARED vernum
STRING title SIZE 80
    '..show free memory in main window.
    title = "AIDE version "+vernum
    title = title + "    Free Memory: "
    title = title + str$(FRE(-1))+" bytes"
    SetWindowTitles(wdw,title,LEAVE)
END SUB

SUB clean_up
SHARED config
  '..delete tmpdir files 
  SYSTEM "delete >NIL: "+quote(config->tmpdir+"#?")
  KILL "ace.err"
END SUB

{------------------------------------------------------}

SUB abort_prog(STRING fname)
  BEEP
  PRINT fname;" error!"
  PRINT
  PRINT "press Q key to quit."
  WHILE UCASE$(INKEY$)<>"Q":SLEEP:WEND
  WINDOW CLOSE 1
  STOP
END SUB

SUB STRING strip_whitespace(STRING X)
SHORTINT i,j,length
STRING   ch SIZE 2
  '..remove leading whitespace from X.
  length = LEN(X)

  i=1
  repeat
    ch = MID$(X,i,1)
    if ch <= " " then ++i
  until ch > " " or i > length

  '..return the stripped string.
  strip_whitespace = MID$(X,i)
END SUB

SUB append_slash(ADDRESS X_addr)
STRING X ADDRESS X_addr
STRING delimiter SIZE 2
    delimiter = RIGHT$(X,1)
    if delimiter <> "/" and delimiter <> ":" then 
      X = X+"/" 
    end if
END SUB

SUB get_config
SHARED   config
CONST    words=8
DIM      keyword$(words) SIZE 9
SHORTINT i,posn
STRING   config_file SIZE 12
STRING   ln SIZE 81
STRING   value SIZE strSize

  config_file = "AIDE.config"

  '..read the config file keywords
  for i=1 to words
    read keyword$(i)
  next
  DATA EDITOR,VIEWER,CALCTOOL,AGDTOOL
  DATA TMPDIR,DOCDIR,SRCDIR,BLTDIR

  '..open the configuration file
  OPEN "I",#1,config_file

  '..abort program if we can't open this!
  if HANDLE(1)=NULL then CALL abort_prog(config_file)

  '..search for config keywords and set 
  '..values in config structure (expects: <configvar>=<value>).
  while not eof(1)
    LINE INPUT #1,ln
    ln = UCASE$(ln)
    if LEFT$(ln,1) <> "#" then
      i=1 : posn=0
      while i<=words and posn=0
        posn=INSTR(ln,keyword$(i))
        if posn=0 then ++i
      wend
      if posn > 0 then     
 	value = strip_whitespace(MID$(ln,INSTR(ln,"=")+1))
	case
	  i=1 : config->editor  = value
          i=2 : config->viewer  = value
	  i=3 : config->calc    = value
	  i=4 : config->agdtool = value
    	  i=5 : config->tmpdir  = value
	  i=6 : config->docdir  = value
	  i=7 : config->srcdir  = value	
	  i=8 : config->bltdir  = value	
        end case
      end if
    end if
  wend
  CLOSE #1

  '..Check we've got all the values, using defaults where necessary.

  if config->editor="" then
    config->editor="c:Ed"
  end if

  if config->viewer="" then
    config->viewer="ACE:bin/muchmore"
  end if

  if config->calc<>"" then MENU mUtils,iCalc,cEnable

  if config->tmpdir="" then 
    config->tmpdir="T:"
  else
    append_slash(@config->tmpdir)
    '.."Ram Disk:" will cause Blink to choke
    '..since it can't handle quoted args, and the 2.04
    '..ASL file requester yields this name for "RAM:"
    if LEFT$(config->tmpdir,9) = "RAM DISK:" then
       config->tmpdir = "RAM:"+MID$(config->tmpdir,10)
    end if	
  end if

  if config->docdir="" then
    config->docdir = "ACE:docs/"
  else
    append_slash(@config->docdir)  
  end if

  if config->srcdir<>"" then 
    append_slash(@config->srcdir)  
  end if

  if config->bltdir<>"" then 
    append_slash(@config->bltdir)  
  end if
END SUB

SUB initialise_config
SHARED config
  config->editor=""
  config->viewer=""
  config->tmpdir=""
  config->docdir=""
  config->bltdir=""
  config->agdtool=""
  config->calc=""
END SUB

SUB initialise_program_info
SHARED prog, config
  prog->source_file=""
  prog->source_dir=config->srcdir
  prog->made=FALSE
  prog->module_count=0
  prog->default_args=""
  prog->xtn=""
END SUB

SUB LONGINT truth(x$,SHORTINT posn)
  if mid$(x$,posn,1)="T" then
     truth = TRUE
  else
     truth = FALSE
  end if
END SUB

SUB show_compiler_option_status(LONGINT opt,SHORTINT opt_num)
  if opt = TRUE then
     MENU mCompiler,opt_num,cCheck
  else
     MENU mCompiler,opt_num,cEnable
  end if
END SUB

SUB initialise_options
SHARED options
  '..set defaults
  options->preprocess=TRUE
  options->user_break=FALSE
  options->asm_comments=FALSE
  options->create_icon=FALSE
  options->list_lines=FALSE
  options->optimise=TRUE
  options->window_close=FALSE

  '..check for options file
  if fexists("AIDE.options") then
    OPEN "I",#1,"AIDE.options"
    IF NOT EOF(1) THEN LINE INPUT #1,opt$
    CLOSE #1
    if LEN(opt$) = 7 then
      options->preprocess=truth(opt$,1)
      options->user_break=truth(opt$,2)
      options->asm_comments=truth(opt$,3)
      options->create_icon=truth(opt$,4)
      options->list_lines=truth(opt$,5)
      options->optimise=truth(opt$,6)
      options->window_close=truth(opt$,7)
    else
      PRINT "Format error in AIDE.options!"
    end if  
  end if

  '..show whether each is active.
  show_compiler_option_status(options->preprocess,iPreProcess)
  show_compiler_option_status(options->user_break,iBreak)
  show_compiler_option_status(options->asm_comments,iComments)
  show_compiler_option_status(options->create_icon,iIcon)
  show_compiler_option_status(options->list_lines,iListLines)
  show_compiler_option_status(options->optimise,iOptimise)
  show_compiler_option_status(options->window_close,iWindow)
END SUB

SUB initialise_environment
SHARED module$
  initialise_config
  get_config
  initialise_options
  initialise_program_info
  '..clear link modules array
  for i=1 to maxModules:module$(i)="":next
END SUB

{------------------------------------------------------}

SUB setup_menus
SHARED config

  '..Project Menu
  MENU mProject,0,cEnable,	   	"Project"

  MENU mProject,iNew,cEnable,	   	"New","N"
  MENU mProject,iOpen,cEnable,	   	"Open...","O"
  MENU mProject,iView,cEnable,		"View...","V"
  MENU mProject,iSep1.1,cDisable,  	"-----------------"
  MENU mProject,iDelete,cEnable,   	"Delete...","D"
  MENU mProject,iPrint,cEnable,	   	"Print...","P"
  MENU mProject,iExecute,cEnable,  	"Execute...","X"
  MENU mProject,iShell,cEnable,		"Spawn Shell"
  MENU mProject,iSep1.2,cDisable,  	"-----------------"
  MENU mProject,iAbout,cEnable,	   	"About..."
  MENU mProject,iQuit,cEnable,	   	"Quit AIDE","Q"

  '..Program Menu
  MENU mProgram,0,cEnable,	   	"Program"

  MENU mProgram,iSetSource,cEnable,  	"Set Source...","S"
  MENU mProgram,iEdit,cDisable,		"Edit Source","E"
  MENU mProgram,iSep2.1,cDisable,   	"------------------------"
  MENU mProgram,iRun,cDisable,	    	"Run","R"
  MENU mProgram,iRunInShell,cDisable,  	"Run in Shell..."
  MENU mProgram,iSep2.2,cDisable,  	"------------------------"
  MENU mProgram,iCompile,cDisable,  	"Compile","C"
  MENU mProgram,iMake,cDisable,  	"Make Executable","M"
  MENU mProgram,iBuild,cDisable,   	"Build Application","B"
  MENU mProgram,iModule,cDisable,	"Create Linkable Module"
  MENU mProgram,iSep2.3,cDisable,  	"------------------------"
  MENU mProgram,iViewAsm,cDisable,	"View Assembly Source"
  MENU mProgram,iViewPrep,cDisable,	"View Preprocessed Source"
  MENU mProgram,iShowErrs,cDisable,  	"View Compiler Errors"

  '..Compiler Menu
  MENU mCompiler,0,cEnable,		"Compiler"

  MENU mCompiler,iPreProcess,cCheck,	"    Preprocess Source"
  MENU mCompiler,iBreak,cEnable,	"    Break Trapping"
  MENU mCompiler,iComments,cEnable,	"    Assembly Comments"
  MENU mCompiler,iIcon,cEnable,		"    Create Icon"
  MENU mCompiler,iListLines,cEnable,	"    List Source Lines"
  MENU mCompiler,iOptimise,cCheck,	"    Optimise Assembly"
  MENU mCompiler,iWindow,cEnable,	"    Window Trapping"
  MENU mCompiler,iSep3.1,cDisable,	"---------------------"
  MENU mCompiler,iSaveOpts,cEnable,	"    Save Options"

  '..Linker Menu
  MENU mLinker,0,cEnable,		"Linker"

  MENU mLinker,iAddModule,cEnable,	"Add Module..."
  MENU mLinker,iRemModule,cDisable,	"Remove Module..."
  MENU mLinker,iRemAllMod,cDisable,     "Remove All Modules"
  MENU mLinker,iSep4.1,cDisable,	STRING$(18,"-")

  '..Utilities Menu
  MENU mUtils,0,cEnable,		"Utilities"

  MENU mUtils,iCalc,cDisable,		"Calculator"
  MENU mUtils,iFD2BMAP,cDisable,	"Create BMAP file"
  MENU mUtils,iAB2ASCII,cDisable,	"AmigaBASIC to ASCII"

  '..check for existence of FD2BMAP and AB2ASCII
  if fexists("ACE:utils/fd2bmap/fd2bmap") then MENU mUtils,iFD2BMAP,cEnable
  if fexists("ACE:utils/ab2ascii/ab2ascii") then MENU mUtils,iAB2ASCII,cEnable

  '..Help Menu
  MENU mHelp,0,cEnable,			"Help"

  MENU mHelp,iAIDEDoc,cEnable,		"AIDE"
  MENU mHelp,iSep6.1,cDisable,		"------------------"
  MENU mHelp,iACEDoc,cEnable,		"Compiler"
  MENU mHelp,iA68KDoc,cEnable,		"Assembler"
  MENU mHelp,iBlinkDoc,cEnable,		"Linker"
  MENU mHelp,iSep6.2,cDisable,		"------------------"
  MENU mHelp,iACERef,cEnable,		"Language Reference"
  MENU mHelp,iACEWords,cEnable,		"ACE Reserved Words"
  MENU mHelp,iSep6.3,cDisable,		"------------------"
  MENU mHelp,iExamples,cEnable,		"ACE Examples"
  MENU mHelp,iSep6.4,cDisable,		"------------------" 
  MENU mHelp,iACEHist,cEnable,		"ACE History"
END SUB

{------------------------------------------------------}

SUB new_file
SHARED config
  SYSTEM config->editor
END SUB

SUB open_file
SHARED config
STRING file_name SIZE strSize
  file_name = FileBox$("Open")  
  SYSTEM config->editor+" "+quote(file_name)
END SUB

SUB view_file
SHARED config
STRING file_name SIZE strSize
  file_name = FileBox$("View") 
  SYSTEM config->viewer+" "+quote(file_name)
END SUB

SUB execute_command
SHARED   default_command
SHARED   config
STRING   command, script_call
STRING   title SIZE strSize
STRING   prompt SIZE strSize
STRING   script_name SIZE strSize
SHORTINT script_count

  prompt = "Enter Command and Arguments:"
  title  = "Execute Command"

  command = InputBox$(prompt,title,default_command,170,50)

  if command <> "" then 
    '..construct a shell script: must have a unique name
    '..since multiple shell scripts may be in use.
    script_count=0
    repeat
      script_name=config->tmpdir+"command-script-"+MID$(STR$(script_count),2)
      ++script_count
    until NOT fexists(script_name)

    OPEN "O",254,script_name
    PRINT #254,"failat 11"
    PRINT #254,"echo "+CHR$(34)+"*E[0;0H*E[J"+CHR$(34) '..cls
    PRINT #254,"prompt "+CHR$(34)+CHR$(34)
    PRINT #254,"stack 40000"
    PRINT #254,command
    CLOSE #254

    '..Execute it!
    script_call = "NewShell "+CHR$(34)+"CON:0/90/640/100/Command Window/CLOSE"
    script_call = script_call+CHR$(34)+" FROM "
    script_call = script_call+script_name
    SYSTEM script_call

    '..Set new default command.
    default_command = command
  end if
END SUB

SUB print_file
STRING file_name SIZE strSize
STRING text_line
  menus_off
  file_name = FileBox$("Print")
  OPEN "I",#1,file_name
  if HANDLE(1) then
    PRINT "Printing ";file_name;"..."
    OPEN "O",#2,"PRT:"
    while not eof(1)
      LINE INPUT #1,text_line
      PRINT #2,text_line
    wend
    CLOSE 1,2
    CLS:LOCATE 1,1:PRINT "Done. ";file_name;" printed."
  else
    if file_name<>"" then print "Unable to print ";file_name
  end if 
  menus_on
END SUB

SUB delete_file
STRING file_name SIZE strSize
  menus_off
  file_name = FileBox$("Delete")
  if file_name<>"" then 
    if NOT MsgBox("Really delete "+file_name+"?","Yes","No!") then 
      PRINT file_name;" not deleted."
      menus_on
      EXIT SUB
    end if 
    KILL file_name
    if ERR then 
      PRINT "Error while deleting!"
    else
      PRINT file_name;" deleted."
    end if
  else
    PRINT "No file/directory specified."
  end if
  menus_on
END SUB

SUB spawn_shell
  SYSTEM "NewShell CON:0/90/640/100/AIDEshell/CLOSE"
END SUB

SUB about_box
SHARED main_wdw, vernum
  SetWindowTitles(main_wdw,"AIDE version "+vernum,LEAVE)
  x$="Written in ACE by David Benn "+CHR$(169)+" 1994"
  MsgBox x$, "OK"
  show_free_mem(main_wdw)
END SUB

SUB handle_project_menu(item)
SHARED main_wdw
SHORTINT result
  show_free_mem(main_wdw)
  case 
    item = iNew	  	: new_file
    item = iOpen  	: open_file
    item = iView	: view_file
    item = iPrint 	: print_file
    item = iExecute	: execute_command
    item = iDelete	: delete_file
    item = iShell	: spawn_shell
    item = iAbout 	: about_box
  end case  
END SUB

{------------------------------------------------------}

SUB set_source
SHARED  prog, config
STRING  file_name SIZE strSize
STRING  tmp SIZE strSize
STRING  delimiter SIZE 2
STRING  extension SIZE 5
STRING  orig_file SIZE strSize
STRING  old_source_dir SIZE strSize
STRING  old_source_file SIZE strSize
STRING  old_xtn SIZE strSize
LONGINT posn,xtn_pos,ramdisk,dblslash,found

  '..save old path+filename components
  old_source_dir = prog->source_dir
  old_source_file = prog->source_file
  old_xtn = prog->xtn

  '..get source file name (look in last referenced directory)
  file_name = FileBox$("Select Source File", prog->source_dir)

  if file_name="" then 
    PRINT "No source file specified."
    EXIT SUB
  end if

  '..extract directory path and file
  posn=LEN(file_name)
  found=FALSE
  repeat
    delimiter = MID$(file_name,posn,1)
    if delimiter=":" or delimiter="/" then
	found=TRUE
    else
     	--posn
    end if
  until posn=0 or found
 
  if not found then 
    prog->source_file = file_name
    prog->source_dir = ""
  else
    '..source directory
    prog->source_dir = LEFT$(file_name,posn)
  
    '..kludge for Wb 3.0 ASL requester when PARENT button
    '..is selected. (??)
    dblslash = INSTR(prog->source_dir,"//")
    if dblslash then
       tmp = prog->source_dir
       prog->source_dir = MID$(tmp,1,dblslash) + MID$(tmp,dblslash+2)
    end if   

    '..source file
    prog->source_file = MID$(file_name,posn+1)
  end if

  {*
  ** Remove file extension (".b" or ".bas").
  *}
  xtn_pos = INSTR(prog->source_file,".bas") 

  if xtn_pos=0 then
    xtn_pos = INSTR(prog->source_file,".BAS") 
  end if

  if xtn_pos=0 then
    xtn_pos = INSTR(prog->source_file,".b") 
  end if

  if xtn_pos=0 then
    xtn_pos = INSTR(prog->source_file,".B") 
  end if

  if xtn_pos > 0 then extension = MID$(prog->source_file,xtn_pos)

  if extension = "" then
    extension = MID$(prog->source_file,xtn_pos)  
  end if
  
  if ucase$(extension) <> ".B" and ucase$(extension) <> ".BAS" then 
	prog->xtn = ""
	prog->source_file = ""
  else
	prog->xtn = extension	
	posn = INSTR(ucase$(prog->source_file),ucase$(prog->xtn))
 	prog->source_file = LEFT$(prog->source_file,posn-1)
  end if  

  '..Prepare for new compilation.
  if prog->source_file <> "" then
    clean_up
    prog->default_args=""
    prog->made=FALSE

    MENU mProgram,iEdit,cEnable
    MENU mProgram,iRun,cEnable
    MENU mProgram,iRunInShell,cEnable
    MENU mProgram,iArguments,cEnable
    MENU mProgram,iCompile,cEnable
    MENU mProgram,iMake,cEnable
    MENU mProgram,iBuild,cEnable
    MENU mProgram,iModule,cEnable
    MENU mProgram,iViewAsm,cEnable
    MENU mProgram,iViewPrep,cEnable
    MENU mProgram,iShowErrs,cEnable

    '..does the file exist? -> invoke editor if not.
    if NOT fexists(prog->source_dir+prog->source_file+prog->xtn) then
      orig_file = prog->source_dir+prog->source_file+prog->xtn
      SYSTEM config->editor+" "+quote(orig_file)
    end if
    CLS:LOCATE 1,1
    PRINT "Source file is ";prog->source_dir;prog->source_file;prog->xtn
  else
    '..invalid source
    prog->source_dir = old_source_dir
    prog->source_file = old_source_file
    prog->xtn = old_xtn
    CLS:LOCATE 1,1
    PRINT "No source file specified."
  end if
END SUB

SUB edit_source
SHARED config,prog
STRING command
STRING orig_file SIZE strSize
DECLARE STRUCT DateStamp ds1,ds2

  orig_file = prog->source_dir+prog->source_file+prog->xtn

  IF NOT fexists(orig_file) THEN
     PRINT "Unable to edit ";orig_file
     EXIT SUB
  END IF

  '..Get datestamp of original file before editing
  get_file_datestamp(orig_file,ds1)
  
  '..Edit source file
  SYSTEM config->editor+" "+quote(orig_file)

  '..Get datestamp of original file after editing
  get_file_datestamp(orig_file,ds2)

  '..Flag file as "unmade" if it's changed;
  '..delete any existing assembly source file
  '..since it is now out of date.
  IF datestamps_different(ds1,ds2) THEN
     KILL config->tmpdir+prog->source_file+".s"
     prog->made=FALSE
  END IF
END SUB

SUB invoke_make_script(STRING target_dir,SHORTINT object_type)
SHARED  prog,config,main_wdw
STRING  command
STRING  msg SIZE strSize	 
STRING  target_file SIZE strSize	 
LONGINT target_ok
DECLARE STRUCT DateStamp old_target,new_target
CONST   BOLD=2, NORMAL=0

  menus_off
  
  CLS:LOCATE 1,1
  STYLE BOLD
  PRINT "Making ";CHR$(34);prog->source_file;CHR$(34)
  STYLE NORMAL

  target_file = target_dir+prog->source_file

  '..Delete the binaries from previous compilations
  '..(if there were any) so we know whether the make 
  '..was successful or not.
  KILL target_file
  KILL target_file".o"
 
  '..Rename assembly source file (if it exists) with a ".old" extension.
  '..This is used below to check whether a new target file has been created.
  if fexists(target_file+".s") then
     NAME target_file+".s" AS target_file+".old"
  else
     '..Create a dummy assembly source file so
     '..there is something to compare the new
     '..assembly source file (about to be created) to.
     OPEN "O",#1,target_file+".old"
     PRINT #1,"; dummy assembly source"
     PRINT #1,"END"
     CLOSE #1 
  end if

  '..Delete old error file in case we don't generate one now
  '..(ie: don't want old ace.err to be associated with current
  '..compilation).
  KILL "ace.err"

  '..start asynchronous process to Make the program. 
  command = "NewShell "+CHR$(34)+"CON:0/90/640/100/Make program: "
  command = command + prog->source_file+CHR$(34)
  command = command + " FROM " + config->tmpdir+"AIDE-newshell-startup"
  SYSTEM command  

  '..**********************************
  '..Display messages from Make process 
  '..and show free memory while waiting 
  '..for Make to complete.
  '..**********************************
  OPEN "I",#1,"PIPE:"
  time0=TIMER
  repeat
    LINE INPUT #1,msg
    if msg<>"MakeDone" and msg<>"MakeAborted" and msg<>"" then PRINT msg 
    if TIMER >= time0+1 then
	show_free_mem(main_wdw)
	time0=TIMER
    end if
  until msg = "MakeDone" or msg = "MakeAborted"
  CLOSE #1

  case 
    object_type = ASM : PRINT "Assembly source file ";
    object_type = EXE : PRINT "Executable file ";
    object_type = OBJ : PRINT "Linkable module ";
  end case

  '..***************
  '..Successful Make
  '..***************
  if msg = "MakeDone" then 
    if object_type=ASM then
       '..assembly source is target
       get_file_datestamp(target_file+".old",old_target)
       get_file_datestamp(target_file+".s",new_target)
       if fexists(target_file+".s") and older(old_target,new_target) then
	  target_ok=TRUE
       else
	  target_ok=FALSE
       end if
    else
       '..executable is target
       if object_type=EXE then
          target_ok=fexists(target_file)
       else
	  '..linkable (object) module is target
          if object_type=OBJ then
	    target_ok=fexists(target_file+".o")	
	  else
	    '..unknown target type!
	    target_ok=FALSE
 	  end if
       end if
    end if

    if  target_ok then 
      PRINT "created."
      prog->made=TRUE
    else
      PRINT "not created."
    end if
  end if

  '..*****************
  '..Unsuccessful Make
  '..*****************
  if msg = "MakeAborted" then
    KILL target_dir+prog->source_file
    KILL target_dir+prog->source_file+".o"
    KILL target_dir+prog->source_file+".s"
    KILL target_dir+prog->source_file+".old"
    PRINT "not created."
    prog->made=FALSE
  end if

  menus_on
END SUB

SUB make_program(STRING target_dir,SHORTINT object_type)
SHARED   config,prog,options,module$
SHORTINT i
STRING   command,opts
STRING	 ace_src_name SIZE strSize
STRING	 asm_src_name SIZE strSize
DECLARE  STRUCT DateStamp ace_src,asm_src

  '..Generate a shell script to make the program.
  OPEN "O",#1,config->tmpdir+"AIDE-newshell-startup"
  
  PRINT #1,"failat 11"
  PRINT #1,"echo "+CHR$(34)+"*E[0;0H*E[J"+CHR$(34)
  PRINT #1,"alias QuitMake echo >PIPE: MakeAborted"
  PRINT #1,"stack 40000"

  ace_src_name = prog->source_dir+prog->source_file+prog->xtn
  asm_src_name = target_dir+prog->source_file+".s"

  '..Compare datestamps of ACE source and assembly source (if it exists!)
  get_file_datestamp(ace_src_name, ace_src)
  get_file_datestamp(asm_src_name, asm_src)
  
  '..We only want to compile the ACE source if it hasn't already been
  '..compiled (by the user selecting "Compile Program" in the past).
  IF NOT fexists(asm_src_name) OR NOT older(ace_src,asm_src) THEN
    '*** APP ***  
    IF options->preprocess THEN
      PRINT #1,"echo >PIPE: Preprocessing"
      command = "ACE:bin/app "+quote(ace_src_name)
      command = command +" "+quote(target_dir+prog->source_file+prog->xtn)
      PRINT #1,command

      '..preprocessor errors?
      PRINT #1,"IF ERROR"
      PRINT #1,"   echo >PIPE: Aborted!"
      PRINT #1,"   echo >PIPE: MakeAborted"
      PRINT #1,"   EndCLI"
      PRINT #1,"ENDIF"
    ELSE
      '..Just copy file verbatim if APP not invoked.
      command = "c:copy "+quote(ace_src_name)+" "
      command = command + quote(target_dir+prog->source_file+prog->xtn)
      PRINT #1,command
    END IF

    '*** ACE ***
    PRINT #1,"echo >PIPE: Compiling"
    command = "ACE:bin/ace -E"

    '..Compiler switches? (the "i" switch is redundant here since
    '..build_application copies the icon from ACE:icons/exe.info
    '..but someone MAY expect the icon to also be in the working 
    '..directory when compiling/making!)
    opts=""
    if options->user_break then opts = opts + "b"
    if options->asm_comments then opts = opts + "c"
    if options->create_icon then opts = opts + "i" 
    if options->list_lines then opts = opts + "l"
    if options->optimise then opts = opts + "O"
    if options->window_close then opts = opts + "w"
    if object_type = OBJ then opts = opts + "m"
    command = command + opts+" "

    command = command + quote(target_dir+prog->source_file+prog->xtn)
    PRINT #1,command

    '..compile-time errors?
    PRINT #1,"IF ERROR"
    PRINT #1,"   echo >PIPE: Aborted!"
    PRINT #1,"   echo >PIPE: MakeAborted"
    PRINT #1,"   EndCLI"
    PRINT #1,"ENDIF"
  END IF

  IF object_type = EXE OR object_type = OBJ THEN
    '*** A68K ***
    PRINT #1,"echo >PIPE: Assembling"
    command = "ACE:bin/a68k "+quote(asm_src_name)
    PRINT #1,command

    IF object_type = EXE THEN
      '*** BLINK ***
      PRINT #1,"echo >PIPE: Linking"
      command = "ACE:bin/blink "+target_dir+prog->source_file+".o"
      command = command + " LIB "
      '..add link modules
      for i=1 to prog->module_count
        if module$(i)<>"" then command = command + module$(i) + "+"
      next
      command = command + "ACElib:startup.lib+ACElib:db.lib+ACElib:ami.lib"
      'command = command + "SMALLCODE SMALLDATA" 
      PRINT #1,command
    END IF
  END IF

  '..OK -> we're finished
  PRINT #1,"echo >PIPE: MakeDone"
  PRINT #1,"EndCLI"

  CLOSE #1

  '..do it!
  invoke_make_script(target_dir,object_type)
END SUB

SUB compile_program
SHARED config,prog
  if not prog->made or not fexists(config->tmpdir+prog->source_file+".s") then
     make_program(config->tmpdir,ASM)
  else
     PRINT prog->source_file;" is up to date."    
  end if
END SUB

SUB make_executable
SHARED config,prog
  if not prog->made or not fexists(config->tmpdir+prog->source_file) then
     make_program(config->tmpdir,EXE)
  else
     PRINT prog->source_file;" is up to date."
  end if
END SUB

SUB run_program
SHARED config,prog

  make_executable

  if prog->made then
    menus_off
    PRINT "Running ";prog->source_file;"..."
    SYSTEM quote(config->tmpdir+prog->source_file)
    CLS:LOCATE 1,1
    PRINT prog->source_file;" finished."
    menus_on
  else
    '..There (probably) was a compile error.
    PRINT "Unable to run ";prog->source_file;"."
  end if
END SUB

SUB run_program_in_shell
SHARED   config,prog
STRING   prompt SIZE strSize
STRING   title SIZE strSize
STRING   script_call,arguments
STRING   script_name SIZE strSize
SHORTINT script_count

  make_executable

  if prog->made then
    menus_off

    '..get command-line arguments
    prompt = "Command-Line Arguments?"
    title = "Run in Shell"
    arguments = InputBox$(prompt,title,prog->default_args,170,50)

    '..construct a shell script: script must have a unique name
    '..since multiple shell scripts may be in use.
    script_count=0
    repeat
      script_name=config->tmpdir+"command-script-"+MID$(STR$(script_count),2)
      ++script_count
    until NOT fexists(script_name)

    OPEN "O",254,script_name
    PRINT #254,"failat 11"
    PRINT #254,"echo "+CHR$(34)+"*E[0;0H*E[J"+CHR$(34) '..cls
    PRINT #254,"prompt "+CHR$(34)+CHR$(34)
    PRINT #254,"stack 40000"
    PRINT #254,quote(config->tmpdir+prog->source_file)+" "+arguments
    CLOSE #254

    '..Execute it!
    script_call = "NewShell "+CHR$(34)
    script_call = script_call+"CON:0/90/640/100/Running "
    script_call = script_call+prog->source_file+"/CLOSE"
    script_call = script_call+CHR$(34)+" FROM "
    script_call = script_call+script_name
    SYSTEM script_call
    CLS:LOCATE 1,1

    '..store default arguments for program.
    prog->default_args = arguments

    menus_on
  else
    '..There (probably) was a compile error.
    PRINT "Unable to run ";prog->source_file;"."
  end if
END SUB

SUB build_application
SHARED config,prog,options
STRING command,dest_dir

  make_executable

  '..where's the executable going?
  if config->bltdir<>"" then 
     dest_dir = config->bltdir
  else
     dest_dir = prog->source_dir
  end if
  '..copy executable
  command = "sys:c/copy >NIL: "+config->tmpdir+prog->source_file+" "
  command = command + quote(dest_dir+prog->source_file)
  SYSTEM command
  '..copy icon?
  if options->create_icon then
    command = "sys:c/copy >NIL: ACE:icons/exe.info "
    command = command + quote(dest_dir+prog->source_file+".info")
    SYSTEM command
  end if
  '..were we successful?
  if prog->made then 
    PRINT dest_dir+prog->source_file;" has been built."
  end if
END SUB

SUB build_module
SHARED config,prog,options
STRING command,dest_dir

  make_program(config->tmpdir,OBJ)

  '..where's the linkable module going?
  if config->bltdir<>"" then 
     dest_dir = config->bltdir
  else
     dest_dir = prog->source_dir
  end if
  '..copy module
  command = "sys:c/copy >NIL: "+config->tmpdir+prog->source_file+".o "
  command = command + quote(dest_dir+prog->source_file+".o")
  SYSTEM command
END SUB

SUB view_assembly_source
SHARED config,prog
STRING fname SIZE strSize 
  fname = config->tmpdir+prog->source_file+".s"
  if fexists(fname) then 
    SYSTEM config->viewer+" "+quote(fname)
  else
    PRINT "No assembly source present."
  end if
END SUB

SUB view_preprocessed_source
SHARED config,prog
STRING fname SIZE strSize 
  fname = config->tmpdir+prog->source_file+prog->xtn
  if fexists(fname) then 
    SYSTEM config->viewer+" "+quote(fname)
  else
    PRINT "No preprocessed source present."
  end if
END SUB

SUB view_compiler_errors
SHARED config
  OPEN "I",#1,"ace.err"  
  if HANDLE(1) then 
    if LOF(1)<>0 then
      SYSTEM config->viewer+" ace.err"
    else
      PRINT "There were no compilation errors."
    end if
  else
    PRINT "No ACE error log."
  end if
  CLOSE #1
END SUB

SUB handle_program_menu(item)
SHARED main_wdw
  show_free_mem(main_wdw)
  case
    item = iSetSource	: set_source
    item = iEdit	: edit_source
    item = iRun		: run_program
    item = iRunInShell	: run_program_in_shell
    item = iCompile  	: compile_program
    item = iMake	: make_executable
    item = iBuild	: build_application
    item = iModule	: build_module
    item = iViewAsm	: view_assembly_source
    item = iViewPrep	: view_preprocessed_source
    item = iShowErrs	: view_compiler_errors
  end case
END SUB

{------------------------------------------------------}

SUB change_option_state(ADDRESS opt,SHORTINT item)
  if NOT *&opt then
    *&opt:=TRUE
    MENU mCompiler,item,cCheck
  else
    *&opt:=FALSE
    MENU mCompiler,item,cEnable
  end if
END SUB

SUB write_option(LONGINT opt_val)
  if opt_val = TRUE then
     PRINT #1,"T";
  else
     PRINT #1,"F";
  end if
END SUB

SUB handle_compiler_menu(item)
SHARED  options,config,prog,main_wdw
ADDRESS opt
  show_free_mem(main_wdw)
  if item <= iWindow then
    '..toggle a compiler option
    case
      item = iPreProcess: opt = @options->preprocess
      item = iBreak	: opt = @options->user_break
      item = iComments	: opt = @options->asm_comments
      item = iIcon	: opt = @options->create_icon
      item = iListLines	: opt = @options->list_lines
      item = iOptimise	: opt = @options->optimise
      item = iWindow	: opt = @options->window_close
    end case

    change_option_state(opt,item)

    '..previous MAKEs are invalidated
    clean_up
    prog->made = FALSE	
  else
    if item = iSaveOpts then
      '..save current option settings
      OPEN "O",#1,"AIDE.options"
      write_option(options->preprocess)
      write_option(options->user_break)
      write_option(options->asm_comments)
      write_option(options->create_icon)
      write_option(options->list_lines)
      write_option(options->optimise)
      write_option(options->window_close)
      PRINT #1,CHR$(10)
      CLOSE #1
      PRINT "Compiler options saved."
    end if
  end if
END SUB

{------------------------------------------------------}

SUB add_link_module
SHARED   module$,prog
SHORTINT maxMod,i
LONGINT  found
STRING   module SIZE strSize

  '..add a module to the list of object files to link.

  maxMod = prog->module_count + 1

  if maxMod <= maxModules then
    '..get name of module
    module = FileBox$("Add Module")

    if module <> "" then 
      '.."Ram Disk:" will cause Blink to choke
      '..since it can't handle quoted args, and the 2.04
      '..ASL file requester yields this name for "RAM:"
      if UCASE$(LEFT$(module,9)) = "RAM DISK:" then
        module = "RAM:"+MID$(module,10)
      end if	
      
      '..is module already in the list?
      found=FALSE
      for i=1 to prog->module_count
	if module$(i) = module then found=TRUE
      next

      if not found then
	'..No -> add module to list
        module$(maxMod) = module
        MENU mLinker,iSep4.1+maxMod,cEnable,module$(maxMod)
	
        '..increment module count
        prog->module_count = prog->module_count + 1
       
 	'..program may need to be remade
	prog->made=FALSE

	PRINT module$(maxMod);" added to list."

        '..enable "remove" menu items when there is 1 module in the list.
        if prog->module_count = 1 then 
          MENU mLinker,iRemModule,cEnable
          MENU mLinker,iRemAllMod,cEnable
        end if
      else
        PRINT module;" already in list."
      end if
    else
      PRINT "No module specified."
    end if
  else
    PRINT "No more than";maxModules;"modules can be specified."
  end if
END SUB

SUB remove_link_module
SHARED   module$,prog 
SHORTINT maxMod,n,i
LONGINT  found
STRING   module SIZE strSize

  '..remove a module from the list of files to link.
  maxMod = prog->module_count

  if maxMod > 0 then
    '..get module name
    module = FileBox$("Remove Module")

    '..remove module from list if it exists.
    if module <> "" then
      found=FALSE
      for n=1 to maxMod
        if module$(n) = module and not found then 
	   found=TRUE 
	   module$(n)=""
        end if
      next
 
      if found then
	  '..restore module list
	  CLS:LOCATE 1,1
 	  PRINT "Updating..."
          '..shuffle module list entries
          for n=1 to MaxMod
            for i=maxMod to 2 step -1
	      if module$(i-1) = "" then 
		 module$(i-1) = module$(i)  
		 module$(i) = ""
	      end if
            next
          next
  	  '.fix menus
          menu clear
          setup_menus
	  enable_misc_menu_items
     	  MENU mLinker,iRemModule,cEnable
	  MENU mLinker,iRemAllMod,cEnable
       	  for i=1 to maxMod
	    if module$(i)<>"" then MENU mLinker,iSep4.1+i,cEnable,module$(i)
	  next
	  CLS:LOCATE 1,1

	  '. decrement module count
          prog->module_count = prog->module_count - 1

 	  '..program may need to be remade
	  prog->made=FALSE

	  '..disable "remove" menu items if all have been removed.
	  if prog->module_count = 0 then 
	     MENU mLinker,iRemModule,cDisable
	     MENU mLinker,iRemAllMod,cDisable
	  end if
      else
          PRINT module;" not in list."
      end if
    else
      PRINT "No module specified."
    end if
  else
    PRINT "No modules to remove."
  end if
END SUB

SUB remove_all_modules
SHARED   prog,module$
SHORTINT i
  CLS:LOCATE 1,1  
  PRINT "Updating..."
  menu clear
  setup_menus
  enable_misc_menu_items
  for i=1 to maxModules
    module$(i)=""
  next
  CLS:LOCATE 1,1
  '..no modules left
  prog->module_count = 0
  '..program may need to be remade
  prog->made=FALSE
END SUB

SUB handle_linker_menu(item)
SHARED main_wdw
  show_free_mem(main_wdw)
  case
    item = iAddModule : add_link_module 
    item = iRemModule : remove_link_module
    item = iRemAllMod : remove_all_modules
  end case
END SUB

{------------------------------------------------------}

SUB calculator
SHARED config
  '..invoke calculator
  if config->calc<>"" and fexists(config->calc) then
    SYSTEM config->calc
  else
    PRINT "Unable to invoke calculator."
    PRINT "Check CALCTOOL entry in AIDE.config."
  end if
END SUB

SUB fd2bmap
STRING fd_file SIZE strSize
STRING command

  '..create a .bmap file for a library
  '..(assumes ACE:utils/fd2bmap/fd2bmap 
  '..and ACEbmaps: exist).
  
  menus_off

  fd_file = FileBox$("Select FD file for library")

  if fd_file = "" then
    PRINT "No FD file specified."
  else
    fd_file = LEFT$(fd_file,INSTR(fd_file,"_")-1)
    PRINT "Creating ";fd_file;".bmap..."
    SYSTEM "ACE:utils/fd2bmap/fd2bmap "+fd_file+" ACEbmaps:"
    CLS:LOCATE 1,1:PRINT "Done. BMAP file stored in ACEbmaps:"
  end if

  menus_on
END SUB

SUB ab2ascii
STRING ab_file SIZE strSize
  '..convert a compressed AmigaBASIC file to ASCII
  '..(assumes ACE:utils/ab2ascii/ab2ascii exists).
  
  menus_off

  ab_file = FileBox$("Select file to convert")

  if ab_file = "" then
    PRINT "No compressed AmigaBASIC file specified."
  else
    PRINT "Converting ";ab_file;"..."
    SYSTEM "ACE:utils/ab2ascii/ab2ascii <"+ab_file+" >"+ab_file+".b"
    CLS:LOCATE 1,1:PRINT "Done. ASCII source file ";ab_file;".b created."
  end if

  menus_on
END SUB

SUB handle_utils_menu(item)
SHARED main_wdw
  show_free_mem(main_wdw)
  case
    item = iCalc 	: calculator
    item = iFD2BMAP 	: fd2bmap
    item = iAB2ASCII 	: ab2ascii
  end case
END SUB

{------------------------------------------------------}

SUB aide_doc
SHARED config
  '..aide.doc or aide.guide should be in one of two directories.
  if config->agdtool="" then
  	'..AmigaGuide not installed -> use aide.doc
	IF fexists(config->docdir+"aide.doc") THEN
	   SYSTEM config->viewer+" "+config->docdir+"aide.doc"
	ELSE
  	   SYSTEM config->viewer+" ACE:AIDE/aide.doc"
 	END IF	   
  else
	'..AmigaGuide installed -> use aide.guide
	IF fexists(config->docdir+"aide.guide") THEN
	   SYSTEM config->agdtool+" "+config->docdir+"aide.guide"
	ELSE
  	   SYSTEM config->agdtool+" ACE:AIDE/aide.guide"
	END IF
  end if	
END SUB

SUB ace_doc
SHARED config
  if config->agdtool="" then
	'..AmigaGuide not installed -> use ace.doc
  	SYSTEM config->viewer+" "+config->docdir+"ace.doc"
  else
	'..AmigaGuide installed -> use ace.guide
  	SYSTEM config->agdtool+" "+config->docdir+"ace.guide"
  end if	
END SUB

SUB a68k_doc
SHARED config
  SYSTEM config->viewer+" "+config->docdir+"a68k.doc"
END SUB

SUB blink_doc
SHARED config
  SYSTEM config->viewer+" "+config->docdir+"blink.doc"
END SUB

SUB ace_ref
SHARED config
  if config->agdtool="" then
	'..AmigaGuide not installed -> use ref.doc
  	SYSTEM config->viewer+" "+config->docdir+"ref.doc"
  else
	'..AmigaGuide installed -> use ref.guide
  	SYSTEM config->agdtool+" "+config->docdir+"ref.guide"
  end if	
END SUB

SUB ace_reserved_words
SHARED config
  if fexists("ACE:docs/ace-rwords") then 
    SYSTEM config->viewer+" ACE:docs/ace-rwords"
  else
    PRINT "Unable to find ACE:docs/ace-rwords. Type:"
    PRINT 
    PRINT "  ACE WORDS > ACE:docs/ace-rwords"
    PRINT
    PRINT "from a shell prompt. Then select menu option again."
  end if
END SUB

SUB ace_examples
SHARED config
  if config->agdtool<>"" then
	SYSTEM config->agdtool+" ACE:docs/Example.Guide"
  end if
END SUB

SUB ace_history
SHARED config
  SYSTEM config->viewer+" "+config->docdir+"history"
END SUB

SUB handle_help_menu(item)
SHARED main_wdw
  show_free_mem(main_wdw)
  case
    item = iAIDEDoc 	: aide_doc
    item = iACEDoc 	: ace_doc
    item = iA68KDoc 	: a68k_doc
    item = iBlinkDoc 	: blink_doc
    item = iACERef 	: ace_ref
    item = iACEWords 	: ace_reserved_words
    item = iExamples	: ace_examples
    item = iACEHist 	: ace_history
  end case
END SUB

{------------------------------------------------------}

SUB event_loop(SHORTINT first_menu_selection)
SHARED main_wdw
SHORTINT menuNum,itemNum
  REPEAT
    show_free_mem(main_wdw)

    '..await menu activity
    menu wait

    if first_menu_selection then 
	CLS   '..remove initial "Select a menu option" message.
	LOCATE 1,1
	first_menu_selection = FALSE
    end if

    '..handle menu
    menuNum = MENU(0)
    itemNum = MENU(1)
    case 
      menuNum = mProject  : handle_project_menu(itemNum)
      menuNum = mProgram  : handle_program_menu(itemNum)
      menuNum = mCompiler : handle_compiler_menu(itemNum)
      menuNum = mLinker   : handle_linker_menu(itemNum)
      menuNum = mUtils	  : handle_utils_menu(itemNum)
      menuNum = mHelp     : handle_help_menu(itemNum)
    end case    
  UNTIL menuNum = mProject and itemNum = iQuit
END SUB


{*
** Main Program
*}

window 1,"AIDE version "+vernum,(0,10)-(640,90),22
main_wdw = WINDOW(7)
if SYSTEM >= 37 then
  print "please wait..."
  setup_menus
  initialise_environment
  CLS:LOCATE 1,1
  print "Select a menu option."
  event_loop(TRUE)
  clean_up
else
  MsgBox "Need Wb 2.04 or higher. See AIDE.doc for more.", "OK"
end if
window close 1