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Reopen stream include file if it was closed, e.g. by a FLUSH.

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This commit is contained in:
Philip Zembrod 2022-02-06 23:11:22 +01:00
parent 1f698d6638
commit 5e0dafaa16
2 changed files with 30 additions and 11 deletions
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2
8086/msdos/src/include.fb
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File diff suppressed because one or more lines are too long

39
8086/msdos/src/include.fth
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@ -20,9 +20,9 @@
\ *** Block No. 1, Hexblock 1
\ load screen phz 16jan22
\ load screen phz 06feb22
1 5 +thru
1 6 +thru
@ -39,7 +39,7 @@
\ *** Block No. 2, Hexblock 2
\ fib /fib #fib eolf? phz 06jan22
\ fib /fib #fib eolf? phz 06feb22
context @ dos also context !
$50 constant /tib
@ -58,24 +58,43 @@
\ *** Block No. 3, Hexblock 3
\ freadline probe-for-fb phz 06feb22
\ incfile incpos inc-fgetc phz 06feb22
variable incfile
variable incpos 2 allot
: inc-fgetc ( -- c )
incfile @ f.handle @ 0= IF
incpos 2@ incfile @ fseek THEN
incfile @ fgetc
incpos 2@ 1. d+ incpos 2! ;
\ *** Block No. 4, Hexblock 4
\ freadline probe-for-fb phz 06feb22
: freadline ( -- eof )
tib /tib bounds DO
incfile @ fgetc dup eolf? under 0< IF I c! ELSE drop THEN
inc-fgetc dup eolf? under 0< IF I c! ELSE drop THEN
0< 0= IF I tib - #tib ! ENDLOOP tibeof @ exit THEN
LOOP /tib #tib !
." warning: line exteeds max " /tib . cr
." extra chars ignored" cr
BEGIN incfile @ fgetc eolf? 1+ UNTIL tibeof @ ;
BEGIN inc-fgetc eolf? 1+ UNTIL tibeof @ ;
| : probe-for-fb ( -- flag )
\ probes whether current file looks like a block file
/tib 2+ 0 DO isfile@ fgetc #lf = IF ENDLOOP false exit THEN
LOOP true ;
\ *** Block No. 4, Hexblock 4
\ *** Block No. 5, Hexblock 5
\ save/restoretib phz 16jan22
@ -94,7 +113,7 @@
r> #tib ! >in off ;
\ *** Block No. 5, Hexblock 5
\ *** Block No. 6, Hexblock 6
\ interpret-via-tib include phz 06feb22
@ -106,14 +125,14 @@
pushfile use cr file?
probe-for-fb isfile@ freset IF 1 load close exit THEN
incfile push isfile@ incfile !
incpos push incpos off incpos 2+ dup push off
savetib >r interpret-via-tib close r> restoretib ;
: (stashquit stash[ stash> ! (quit ;
: stashrestore ['] (stashquit IS 'quit ;
' stashrestore IS 'restart
\ *** Block No. 6, Hexblock 6
\ *** Block No. 7, Hexblock 7
\ \ phz 16jan22