version 1.17, 1995/12/23 16:21:59
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version 1.28, 1997/09/13 12:04:59
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Line 42
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Line 42
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warnings off |
warnings off |
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[IFUNDEF] vocabulary include search-order.fs [THEN] |
include extend.fs |
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\ require interpretation.fs |
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\ require debugs.fs |
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[IFUNDEF] vocabulary include search.fs [THEN] |
[IFUNDEF] environment? include environ.fs [THEN] |
[IFUNDEF] environment? include environ.fs [THEN] |
include gray.fs |
include gray.fs |
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100 constant max-effect \ number of things on one side of a stack effect |
100 constant max-effect \ number of things on one side of a stack effect |
4096 constant batch-size \ no meaning, just make sure it's >0 |
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255 constant maxchar |
255 constant maxchar |
maxchar 1+ constant eof-char |
maxchar 1+ constant eof-char |
#tab constant tab-char |
#tab constant tab-char |
Line 56 maxchar 1+ constant eof-char
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Line 59 maxchar 1+ constant eof-char
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: read-whole-file ( c-addr1 file-id -- c-addr2 ) |
: read-whole-file ( c-addr1 file-id -- c-addr2 ) |
\ reads the contents of the file file-id puts it into memory at c-addr1 |
\ reads the contents of the file file-id puts it into memory at c-addr1 |
\ c-addr2 is the first address after the file block |
\ c-addr2 is the first address after the file block |
begin ( c-addr file-id ) |
>r dup $7fffffff r> read-file throw + ; |
2dup batch-size swap read-file |
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if |
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true abort" I/O error" |
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endif |
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( c-addr file-id actual-size ) rot over + -rot |
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batch-size <> |
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until |
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drop ; |
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variable input \ pointer to next character to be parsed |
variable rawinput \ pointer to next character to be scanned |
variable endinput \ pointer to the end of the input (the char after the last) |
variable endrawinput \ pointer to the end of the input (the char after the last) |
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variable cookedinput \ pointer to the next char to be parsed |
variable line \ line number of char pointed to by input |
variable line \ line number of char pointed to by input |
1 line ! |
1 line ! |
2variable filename \ filename of original input file |
2variable filename \ filename of original input file |
0 0 filename 2! |
0 0 filename 2! |
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2variable f-comment |
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0 0 f-comment 2! |
variable skipsynclines \ are sync lines ("#line ...") invisible to the parser? |
variable skipsynclines \ are sync lines ("#line ...") invisible to the parser? |
skipsynclines on |
skipsynclines on |
\ !! unfortunately, this does not mean that they do not appear in the |
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\ output. This could be changed by copying the input (skipping |
Variable flush-comment flush-comment off |
\ synclines) in ?nextchar |
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: ?flush-comment |
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flush-comment @ 0= ?EXIT |
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f-comment 2@ nip |
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IF cr f-comment 2@ 2 /string type 0 0 f-comment 2! THEN ; |
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: start ( -- addr ) |
: start ( -- addr ) |
input @ ; |
cookedinput @ ; |
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: end ( addr -- addr u ) |
: end ( addr -- addr u ) |
input @ over - ; |
cookedinput @ over - ; |
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variable output \ xt ( -- ) of output word |
variable output \ xt ( -- ) of output word |
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Line 145 variable items
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Line 147 variable items
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eof-char max-member \ the whole character set + EOF |
eof-char max-member \ the whole character set + EOF |
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: getinput ( -- n ) |
: getinput ( -- n ) |
input @ |
rawinput @ endrawinput @ = |
dup endinput @ = |
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if |
if |
drop eof-char |
eof-char |
else |
else |
c@ |
cookedinput @ c@ |
endif ; |
endif ; |
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:noname ( n -- ) |
:noname ( n -- ) |
Line 168 print-token !
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Line 169 print-token !
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: checksyncline ( -- ) |
: checksyncline ( -- ) |
\ when input points to a newline, check if the next line is a |
\ when input points to a newline, check if the next line is a |
\ sync line. If it is, perform the appropriate actions. |
\ sync line. If it is, perform the appropriate actions. |
input @ >r |
rawinput @ >r |
s" #line " r@ over compare 0<> if |
s" #line " r@ over compare 0<> if |
rdrop 1 line +! EXIT |
rdrop 1 line +! EXIT |
endif |
endif |
0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr ) |
0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr ) |
dup c@ bl = if |
dup c@ bl = if |
char+ dup c@ [char] " <> abort" sync line syntax" |
char+ dup c@ [char] " <> abort" sync line syntax" |
char+ dup 100 [char] " scan drop swap 2dup - filename 2! |
char+ dup 100 [char] " scan drop swap 2dup - save-mem filename 2! |
char+ |
char+ |
endif |
endif |
dup c@ nl-char <> abort" sync line syntax" |
dup c@ nl-char <> abort" sync line syntax" |
skipsynclines @ if |
skipsynclines @ if |
dup char+ input ! |
dup char+ rawinput ! |
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rawinput @ c@ cookedinput @ c! |
endif |
endif |
drop ; |
drop ; |
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: ?nextchar ( f -- ) |
: ?nextchar ( f -- ) |
?not? if |
?not? if |
." syntax error" cr |
filename 2@ type ." :" line @ 0 .r ." : syntax error, wrong char:" |
getinput . cr |
getinput . cr |
input @ endinput @ over - 100 min type cr |
rawinput @ endrawinput @ over - 100 min type cr |
abort |
abort |
endif |
endif |
input @ endinput @ <> if |
rawinput @ endrawinput @ <> if |
input @ c@ |
rawinput @ c@ |
1 input +! |
1 chars rawinput +! |
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1 chars cookedinput +! |
nl-char = if |
nl-char = if |
checksyncline |
checksyncline |
endif |
endif |
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rawinput @ c@ cookedinput @ c! |
endif ; |
endif ; |
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: charclass ( set "name" -- ) |
: charclass ( set "name" -- ) |
Line 211 print-token !
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Line 215 print-token !
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: ` ( -- terminal ) ( use: ` c ) |
: ` ( -- terminal ) ( use: ` c ) |
( creates anonymous terminal for the character c ) |
( creates anonymous terminal for the character c ) |
[compile] ascii singleton ['] ?nextchar make-terminal ; |
char singleton ['] ?nextchar make-terminal ; |
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char a char z .. char A char Z .. union char _ singleton union charclass letter |
char a char z .. char A char Z .. union char _ singleton union charclass letter |
char 0 char 9 .. charclass digit |
char 0 char 9 .. charclass digit |
Line 231 eof-char singleton charclass eof
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Line 235 eof-char singleton charclass eof
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nowhite ++ |
nowhite ++ |
<- name ( -- ) |
<- name ( -- ) |
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(( ` \ nonl ** nl |
(( {{ ?flush-comment start }} ` \ nonl ** nl {{ end |
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2dup 2 min s" \+" compare 0= IF f-comment 2! ELSE 2drop THEN }} |
)) <- comment ( -- ) |
)) <- comment ( -- ) |
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\ (( ` # ` l ` i ` n ` e blank |
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\ {{ 0. start }} digit ++ {{ end >number abort" line number?" drop drop 1- line ! }} blank |
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\ (( ` " {{ start }} noquote ++ {{ end filename 2! }} `" )) ?? |
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\ nl |
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\ )) <- syncline ( -- ) |
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\ (( nl syncline ?? )) <- nlsync |
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(( {{ effect-in }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-in-end ! }} |
(( {{ effect-in }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-in-end ! }} |
` - ` - blank ** |
` - ` - blank ** |
{{ effect-out }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-out-end ! }} |
{{ effect-out }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-out-end ! }} |
Line 256 nowhite ++
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Line 253 nowhite ++
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(( {{ start }} c-name {{ end c-name 2! }} )) ?? nl |
(( {{ start }} c-name {{ end c-name 2! }} )) ?? nl |
)) |
)) |
(( ` " ` " {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ?? |
(( ` " ` " {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ?? |
{{ line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl ** nl )) ** {{ end c-code 2! }} |
{{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl ** nl )) ** {{ end c-code 2! skipsynclines on }} |
(( ` : nl |
(( ` : nl |
{{ start }} (( nonl ++ nl )) ++ {{ end forth-code 2! }} |
{{ start }} (( nonl ++ nl )) ++ {{ end forth-code 2! }} |
)) ?? |
)) ?? |
Line 272 warnings @ [IF]
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Line 269 warnings @ [IF]
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: primfilter ( file-id xt -- ) |
: primfilter ( file-id xt -- ) |
\ fileid is for the input file, xt ( -- ) is for the output word |
\ fileid is for the input file, xt ( -- ) is for the output word |
output ! |
output ! |
here input ! |
here dup rawinput ! cookedinput ! |
here swap read-whole-file |
here swap read-whole-file |
dup endinput ! |
dup endrawinput ! |
here - allot |
here - allot |
align |
align |
checksyncline |
checksyncline |
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\ begin |
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\ getinput dup eof-char = ?EXIT emit true ?nextchar |
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\ again ; |
primitives2something ; |
primitives2something ; |
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\ types |
\ types |
Line 318 constant type-description
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Line 318 constant type-description
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: fetch-double ( item -- ) |
: fetch-double ( item -- ) |
>r |
>r |
r@ item-name 2@ type |
." FETCH_DCELL(" |
." = ({Double_Store _d; _d.cells.low = " |
r@ item-name 2@ type ." , " |
r@ item-d-offset @ dup effect-in-size 2@ data-stack-access |
r@ item-d-offset @ dup effect-in-size 2@ data-stack-access |
." ; _d.cells.high = " 1+ effect-in-size 2@ data-stack-access |
." , " 1+ effect-in-size 2@ data-stack-access |
." ; _d.dcell;});" cr |
." );" cr |
rdrop ; |
rdrop ; |
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: fetch-float ( item -- ) |
: fetch-float ( item -- ) |
Line 373 constant type-description
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Line 373 constant type-description
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: store-double ( item -- ) |
: store-double ( item -- ) |
\ !! store optimization is not performed, because it is not yet needed |
\ !! store optimization is not performed, because it is not yet needed |
>r |
>r |
." {Double_Store _d; _d.dcell = " r@ item-name 2@ type ." ; " |
." STORE_DCELL(" r@ item-name 2@ type ." , " |
r@ item-d-offset @ dup effect-out-size 2@ data-stack-access |
r@ item-d-offset @ dup effect-out-size 2@ data-stack-access |
." = _d.cells.low; " 1+ effect-out-size 2@ data-stack-access |
." , " 1+ effect-out-size 2@ data-stack-access |
." = _d.cells.high;}" cr |
." );" cr |
rdrop ; |
rdrop ; |
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: f-same-as-in? ( item -- f ) |
: f-same-as-in? ( item -- f ) |
Line 607 set-current
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Line 607 set-current
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: output-label ( -- ) |
: output-label ( -- ) |
." &&I_" c-name 2@ type ." ," cr ; |
." &&I_" c-name 2@ type ." ," cr ; |
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: output-alias ( -- ) |
: output-alias ( -- ) flush-comment on |
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?flush-comment |
primitive-number @ . ." alias " forth-name 2@ type cr |
primitive-number @ . ." alias " forth-name 2@ type cr |
-1 primitive-number +! ; |
-1 primitive-number +! ; |
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: output-forth ( -- ) |
: output-forth ( -- ) flush-comment on |
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?flush-comment |
forth-code @ 0= |
forth-code @ 0= |
IF output-alias |
IF \ output-alias |
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\ this is bad for ec: an alias is compiled if tho word does not exist! |
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\ JAW |
ELSE ." : " forth-name 2@ type ." ( " |
ELSE ." : " forth-name 2@ type ." ( " |
effect-in effect-in-end @ .stack-list ." -- " |
effect-in effect-in-end @ .stack-list ." -- " |
effect-out effect-out-end @ .stack-list ." )" cr |
effect-out effect-out-end @ .stack-list ." )" cr |