BFormat
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This utility will format a basic program to your taste.
NB: It treats a RETURN in a subroutine as the end of the routine, only if there's a blank line after it, so use some whitespace between routines, people!
***************************************************************************
* Program: BASIC FORMAT PROGRAM
* Author : Ian [[McGowan]]
* Date : 08/30/1989
* Edited : $Id: BFORMAT,v 1.2 2003/05/15 18:54:51 dsiroot Exp $
* Comment: Program to indent BASIC programs according to user defined options
***************************************************************************
* 11/16/1997 Ian Modified to sort subroutines alphabetically
* 07/23/2002 Ian Deal with tabs
* $Log: BFORMAT,v $
* Revision 1.2 2003/05/15 18:54:51 dsiroot
* mcgowan:Remove code for sorting subroutines
*
PROMPT ":"
SPACE = ' ' ; STAR = '*' ; COLON = ':' ; TAB=CHAR(9)
IND = 0
ID=UPCASE(@LOGNAME)
HOME.DIR=GETENV("HOME")
HOME.FILE='HOME.':UPCASE(ID)
OPEN 'VOC' TO VOC ELSE STOP 201,'VOC'
OPEN HOME.FILE TO HOME.F ELSE
R='DIR' ; R<2>=HOME.DIR ; R<3>='[[D_VOC]]'
WRITE R ON VOC, HOME.FILE
OPEN HOME.FILE TO HOME.F ELSE STOP 201, HOME.FILE
END
* These are all commands that may have ELSE or THEN statements
* (or blocks) following them
SPECIAL.CASES = "GET":@AM:"INPUT":@AM:"LOCATE":@AM:"LOCK":@AM:"MATREAD":@AM:"MATREADU":@AM
SPECIAL.CASES:= "MATWRITE":@AM:"MATWRITEU":@AM:"OPEN":@AM:"PROCREAD":@AM
SPECIAL.CASES:= "PROCWRITE":@AM:"READ":@AM:"READNEXT":@AM:"READSEQ":@AM:"READT":@AM:"READU":@AM:"READV":@AM
SPECIAL.CASES:= "READVU":@AM:"REWIND":@AM:"SEEK":@AM:"WEOF":@AM:"WRITESEQ":@AM
SPECIAL.CASES:= "WRITET"
DEF.INDENT=4
READ FORMATS FROM HOME.F,'.STACK.FORMAT_':ID ELSE
FORMATS=":":@VM:"BEGIN":@VM:"CASE":@VM:"ELSE":@VM:"END":@VM:"FOR":@VM
FORMATS:="IF":@VM:"LOOP":@VM:"NEXT":@VM:"REPEAT":@VM:"RETURN":@VM
FORMATS:="THEN":@VM:"UNTIL":@VM:"WHILE"
* THIS.IND is the amount this line will be in or outdented
FORMATS<2>=0:@VM:0:@VM:-1:@VM:0:@VM:-1:@VM:0:@VM:0:@VM
FORMATS<2>:=0:@VM:-1:@VM:-1:@VM:-1:@VM:0:@VM:-1:@VM:-1
* NEXT.IND is the amount that all following lines will be indented
FORMATS<3>=1:@VM:2:@VM:0:@VM:1:@VM:-1:@VM:1:@VM:1:@VM
FORMATS<3>:=1:@VM:-1:@VM:-1:@VM:-1:@VM:1:@VM:0:@VM:0
FORMATS<4>=DEF.INDENT
END
DEF.INDENT=FORMATS<4>
ERR = "Usage - BFORMAT file-name item-name"
F.NAME = FIELD(TRIM(@SENTENCE),' ',2)
IF F.NAME = '' THEN
PRINT "File :": ; INPUT F.NAME
END
IF F.NAME = "" OR F.NAME = "/" THEN STOP
OPEN F.NAME TO FI ELSE PRINT ERR ; STOP
B.NAME = FIELD(TRIM(@SENTENCE),' ',3)
IF B.NAME = '' THEN
PRINT "Item :": ; INPUT B.NAME
END
IF B.NAME = "" OR B.NAME = "/" THEN STOP
READ REC FROM FI,B.NAME ELSE PRINT "CANNOT READ ":F.NAME:",":B.NAME ; STOP
WRITE REC ON FI,B.NAME:".BAK"
I = DCOUNT(REC,@AM)
IF I < 2 THEN STOP
FOR F = 1 TO I
PRINT STAR:
L = REC<F> ; NEXT.LINE=REC<F+1>
GOSUB FORMAT.LINE
REC<F> = L
NEXT F
WRITE REC ON FI,B.NAME
PRINT STAR ; PRINT I:" lines of ":B.NAME:" formatted"
STOP
FORMAT.LINE:
GOSUB TRIM.LINE
CONVERT TAB TO "" IN L
FIRST.WORD = FIELD(L,SPACE,1)
LEN.FIRST.WORD = LEN(FIRST.WORD)
LOCATE FIRST.WORD IN SPECIAL.CASES BY 'AL' SETTING SPECIAL ELSE SPECIAL = 0
NUM.SPACES = COUNT(L,SPACE) + 1
LAST.WORD = FIELD(L,SPACE,NUM.SPACES)
NEXT.TO.LAST.WORD = FIELD(L,SPACE,NUM.SPACES-1)
THIS.IND = 0
NEXT.IND = 0
IF L # "" THEN
BEGIN CASE
CASE FIRST.WORD[LEN.FIRST.WORD,1] = COLON OR NUM(FIRST.WORD)
* A label
IND = 0
LOCATE COLON IN FORMATS<1> SETTING POS ELSE POS = 0
THIS.IND = FORMATS<2,POS>
NEXT.IND = FORMATS<3,POS>
CASE FIRST.WORD = "IF"
LOCATE FIRST.WORD IN FORMATS<1> SETTING POS ELSE POS = 0
IF LAST.WORD = "THEN" THEN
THIS.IND = FORMATS<2,POS>
NEXT.IND = FORMATS<3,POS>
END
CASE FIRST.WORD = "END"
SECOND.WORD = FIELD(L,SPACE,2)
IF SECOND.WORD = "ELSE" THEN
LOCATE "ELSE" IN FORMATS<1> SETTING POS ELSE POS = 0
THIS.IND = -FORMATS<3,POS>
NEXT.IND = FORMATS<2,POS>
END ELSE
IF SECOND.WORD = "CASE" THEN
LOCATE "BEGIN" IN FORMATS<1> SETTING POS ELSE POS = 0
THIS.IND = -FORMATS<3,POS>
NEXT.IND = -FORMATS<3,POS>
END ELSE
LOCATE FIRST.WORD IN FORMATS<1> SETTING POS ELSE POS = 0
THIS.IND = FORMATS<2,POS>
NEXT.IND = FORMATS<3,POS>
END
END
CASE SPECIAL
* Find last word - skip until a space
IF LAST.WORD = "ELSE" OR LAST.WORD = "THEN" THEN
LOCATE LAST.WORD IN FORMATS<1> SETTING POS ELSE POS = 0
THIS.IND = FORMATS<2,POS>
NEXT.IND = FORMATS<3,POS>
END
CASE FIRST.WORD = "FOR" AND NEXT.TO.LAST.WORD = "NEXT"
* FOR loop on one line means do nothing
CASE FIRST.WORD = "RETURN" AND NEXT.LINE # ""
* RETURN without a blank line means do nothing
CASE 1
LOCATE FIRST.WORD IN FORMATS<1> SETTING POS ELSE POS = 0
IF POS # 0 THEN
THIS.IND = FORMATS<2,POS>
NEXT.IND = FORMATS<3,POS>
END
END CASE
END
L = SPACE((IND+THIS.IND)*DEF.INDENT):L
*L = STR(TAB,IND+THIS.IND):L
IND = IND + NEXT.IND
RETURN
TRIM.LINE:
* Trim leading and trailing spaces, but not included
XXLENGTH = LEN(L)
FOR J = 1 TO XXLENGTH UNTIL L[J,1] # SPACE ; NEXT J
IF J = XXLENGTH THEN L = "" ELSE L = L[J,XXLENGTH]
XXLENGTH = LEN(L)
FOR J = XXLENGTH TO 1 STEP -1 UNTIL L[J,1] # SPACE ; NEXT J
L = L[1,J]
RETURN
