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PDP-10 Archives
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LCG_Integration_Tools_Clearinghouse_T20_v7_30Apr86
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tools/sed-for-vms/bldsedhlp.mar
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.TITLE BLDSEDHLP - Program to build the on-line help file for SED
.ENABLE DEBUG
.DISABLE GLOBAL
$RMSDEF
.PSECT DATA,WRT,NOEXE
BUFFER: .BLKB 1536 ;Output buffer
INBUFF: .BLKB 128 ;Input buffer
BUFFPTR:.BLKL 1 ;Pointer into the output buffer
FILFLG: .BLKL 1 ;-1=data in buffer, 0=buffer empty
INPUT_FAB: $FAB FNM=<SEDONL.TXT>,FAC=GET,FOP=SQO
OUTPUT_FAB: $FAB FNM=<SEDONL.HLP>,FAC=<BIO,PUT>,FOP=MXV,-
ORG=SEQ,RFM=FIX,MRS=1536
INPUT_RAB: $RAB FAB=INPUT_FAB,RAC=SEQ,UBF=INBUFF,USZ=128
OUTPUT_RAB: $RAB FAB=OUTPUT_FAB,RAC=SEQ,RBF=BUFFER,RSZ=1536
.PSECT CODE,NOWRT,EXE
START: .WORD 0 ;Entry mask
BSBW WRTREC ;Initialize the pointer
$OPEN FAB=INPUT_FAB ;Open the input file
BLBS R0,10$
RET
10$: $CREATE FAB=OUTPUT_FAB ;Open the output file
BLBS R0,20$
RET
20$: $CONNECT RAB=INPUT_RAB ;Connect to the record blocks
BLBS R0,30$
RET
30$: $CONNECT RAB=OUTPUT_RAB
BLBS R0,COPY_LOOP
RET
COPY_LOOP:
$GET RAB=INPUT_RAB ;Get a record
BLBS R0,WRITE ;Success?
CMPL R0,#RMS$_EOF ;Was the error end of file?
BEQL EOF ;Yes
RET ;Otherwise it's fatal
EOF: BSBW WRTREC ;Output the last record if necessary
$DISCONNECT RAB=INPUT_RAB
$DISCONNECT RAB=OUTPUT_RAB
$CLOSE FAB=INPUT_FAB
$CLOSE FAB=OUTPUT_FAB
RET
WRITE: CMPB #^O14,INBUFF ;Is the character a form feed?
BNEQ 10$ ;No
BSBW WRTREC ;Yes - dump the previous record to disk
BRW COPY_LOOP ;and go get some more
10$: MOVC3 INPUT_RAB+RAB$W_RSZ,INBUFF,@BUFFPTR ;Copy the record for output
MOVZWL INPUT_RAB+RAB$W_RSZ,R1 ;Get the length
ADDL R1,BUFFPTR ;Increment the buffer pointer
MOVW #^X0A0D,@BUFFPTR ;End the line with CRLF
ADDL #2,BUFFPTR ;Account for the CRLF
CVTBL #-1,FILFLG ;Indicate data is in the buffer
BRW COPY_LOOP ;Go get another record
WRTREC: TSTL FILFLG ;Anything in the buffer?
BEQL 20$ ;No
$WRITE RAB=OUTPUT_RAB ;Yes - write the record
BLBS R0,10$ ;Any errors?
RET ;Yes
10$: MOVC5 #0,BUFFER,#0,#1536,BUFFER ;Clear the buffer
20$: CLRL FILFLG ;Buffer is empty
MOVAB BUFFER,BUFFPTR ;Point to the buffer
RSB ;and return
.END START