version 1.17, 1995/12/23 16:21:59
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version 1.18, 1995/12/26 17:35:37
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Line 42
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Line 42
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warnings off |
warnings off |
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require debugging.fs |
[IFUNDEF] vocabulary include search-order.fs [THEN] |
[IFUNDEF] vocabulary include search-order.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 56 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 -1 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! |
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 |
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\ synclines) in ?nextchar |
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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 135 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 157 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 |
Line 180 print-token !
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Line 169 print-token !
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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 234 nowhite ++
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Line 226 nowhite ++
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(( ` \ nonl ** nl |
(( ` \ nonl ** nl |
)) <- 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 240 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 256 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 |