1: \ converts primitives to, e.g., C code
2:
3: \ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
4:
5: \ This file is part of Gforth.
6:
7: \ Gforth is free software; you can redistribute it and/or
8: \ modify it under the terms of the GNU General Public License
9: \ as published by the Free Software Foundation; either version 2
10: \ of the License, or (at your option) any later version.
11:
12: \ This program is distributed in the hope that it will be useful,
13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: \ GNU General Public License for more details.
16:
17: \ You should have received a copy of the GNU General Public License
18: \ along with this program; if not, write to the Free Software
19: \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20:
21:
22: \ This is not very nice (hard limits, no checking, assumes 1 chars = 1)
23:
24: \ Optimizations:
25: \ superfluous stores are removed. GCC removes the superfluous loads by itself
26: \ TOS and FTOS can be kept in register( variable)s.
27: \
28: \ Problems:
29: \ The TOS optimization is somewhat hairy. The problems by example:
30: \ 1) dup ( w -- w w ): w=TOS; sp-=1; sp[1]=w; TOS=w;
31: \ The store is not superfluous although the earlier opt. would think so
32: \ Alternatively: sp[0]=TOS; w=TOS; sp-=1; TOS=w;
33: \ 2) ( -- .. ): sp[0] = TOS; ... /* This additional store is necessary */
34: \ 3) ( .. -- ): ... TOS = sp[0]; /* as well as this load */
35: \ 4) ( -- ): /* but here they are unnecessary */
36: \ 5) Words that call NEXT themselves have to be done very carefully.
37: \
38: \ To do:
39: \ add the store optimization for doubles
40: \ regarding problem 1 above: It would be better (for over) to implement
41: \ the alternative
42:
43: warnings off
44:
45: [IFUNDEF] vocabulary \ we are executed just with kernel image
46: \ load the rest that is needed
47: \ (require fails because this file is needed from a
48: \ different directory with the wordlibraries)
49: include ./search.fs
50: include ./extend.fs
51: [THEN]
52:
53: [IFUNDEF] environment?
54: include ./environ.fs
55: [THEN]
56:
57: include ./gray.fs
58:
59: 100 constant max-effect \ number of things on one side of a stack effect
60: 255 constant maxchar
61: maxchar 1+ constant eof-char
62: #tab constant tab-char
63: #lf constant nl-char
64:
65: variable rawinput \ pointer to next character to be scanned
66: variable endrawinput \ pointer to the end of the input (the char after the last)
67: variable cookedinput \ pointer to the next char to be parsed
68: variable line \ line number of char pointed to by input
69: 1 line !
70: 2variable filename \ filename of original input file
71: 0 0 filename 2!
72: 2variable f-comment
73: 0 0 f-comment 2!
74: variable skipsynclines \ are sync lines ("#line ...") invisible to the parser?
75: skipsynclines on
76:
77: : start ( -- addr )
78: cookedinput @ ;
79:
80: : end ( addr -- addr u )
81: cookedinput @ over - ;
82:
83: variable output \ xt ( -- ) of output word
84:
85: : printprim ( -- )
86: output @ execute ;
87:
88: : field
89: <builds-field ( n1 n2 -- n3 )
90: does> ( addr1 -- addr2 )
91: @ + ;
92:
93: : const-field
94: <builds-field ( n1 n2 -- n3 )
95: does> ( addr -- w )
96: @ + @ ;
97:
98: struct
99: 2 cells field item-name
100: cell field item-d-offset
101: cell field item-f-offset
102: cell field item-type
103: constant item-descr
104:
105: 2variable forth-name
106: 2variable wordset
107: 2variable c-name
108: 2variable doc
109: 2variable c-code
110: 2variable forth-code
111: 2variable stack-string
112: create effect-in max-effect item-descr * allot
113: create effect-out max-effect item-descr * allot
114: variable effect-in-end ( pointer )
115: variable effect-out-end ( pointer )
116: 2variable effect-in-size
117: 2variable effect-out-size
118: variable c-line
119: 2variable c-filename
120: variable name-line
121: 2variable name-filename
122: 2variable last-name-filename
123:
124: variable primitive-number -10 primitive-number !
125: Variable function-number 0 function-number !
126:
127: \ for several reasons stack items of a word are stored in a wordlist
128: \ since neither forget nor marker are implemented yet, we make a new
129: \ wordlist for every word and store it in the variable items
130: variable items
131:
132: \ a few more set ops
133:
134: : bit-equivalent ( w1 w2 -- w3 )
135: xor invert ;
136:
137: : complement ( set1 -- set2 )
138: empty ['] bit-equivalent binary-set-operation ;
139:
140: \ the parser
141:
142: eof-char max-member \ the whole character set + EOF
143:
144: : getinput ( -- n )
145: rawinput @ endrawinput @ =
146: if
147: eof-char
148: else
149: cookedinput @ c@
150: endif ;
151:
152: :noname ( n -- )
153: dup bl > if
154: emit space
155: else
156: .
157: endif ;
158: print-token !
159:
160: : testchar? ( set -- f )
161: getinput member? ;
162: ' testchar? test-vector !
163:
164: : checksyncline ( -- )
165: \ when input points to a newline, check if the next line is a
166: \ sync line. If it is, perform the appropriate actions.
167: rawinput @ >r
168: s" #line " r@ over compare 0<> if
169: rdrop 1 line +! EXIT
170: endif
171: 0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr )
172: dup c@ bl = if
173: char+ dup c@ [char] " <> abort" sync line syntax"
174: char+ dup 100 [char] " scan drop swap 2dup - save-mem filename 2!
175: char+
176: endif
177: dup c@ nl-char <> abort" sync line syntax"
178: skipsynclines @ if
179: dup char+ rawinput !
180: rawinput @ c@ cookedinput @ c!
181: endif
182: drop ;
183:
184: : ?nextchar ( f -- )
185: ?not? if
186: filename 2@ type ." :" line @ 0 .r ." : syntax error, wrong char:"
187: getinput . cr
188: rawinput @ endrawinput @ over - 100 min type cr
189: abort
190: endif
191: rawinput @ endrawinput @ <> if
192: rawinput @ c@
193: 1 chars rawinput +!
194: 1 chars cookedinput +!
195: nl-char = if
196: checksyncline
197: endif
198: rawinput @ c@ cookedinput @ c!
199: endif ;
200:
201: : charclass ( set "name" -- )
202: ['] ?nextchar terminal ;
203:
204: : .. ( c1 c2 -- set )
205: ( creates a set that includes the characters c, c1<=c<=c2 )
206: empty copy-set
207: swap 1+ rot do
208: i over add-member
209: loop ;
210:
211: : ` ( -- terminal ) ( use: ` c )
212: ( creates anonymous terminal for the character c )
213: char singleton ['] ?nextchar make-terminal ;
214:
215: char a char z .. char A char Z .. union char _ singleton union charclass letter
216: char 0 char 9 .. charclass digit
217: bl singleton tab-char over add-member charclass white
218: nl-char singleton eof-char over add-member complement charclass nonl
219: nl-char singleton eof-char over add-member char : over add-member complement charclass nocolonnl
220: bl 1+ maxchar .. charclass nowhite
221: char " singleton eof-char over add-member complement charclass noquote
222: nl-char singleton charclass nl
223: eof-char singleton charclass eof
224:
225:
226: (( letter (( letter || digit )) **
227: )) <- c-name ( -- )
228:
229: nowhite ++
230: <- name ( -- )
231:
232: Variable forth-flag
233: Variable c-flag
234:
235: (( (( ` f || ` F )) {{ start }} nonl **
236: {{ end forth-flag @ IF type cr ELSE 2drop THEN }}
237: )) <- forth-comment ( -- )
238:
239: (( (( ` c || ` C )) {{ start }} nonl **
240: {{ end c-flag @ IF type cr ELSE 2drop THEN }}
241: )) <- c-comment ( -- )
242:
243: (( ` - nonl ** {{
244: forth-flag @ IF ." [ELSE]" cr THEN
245: c-flag @ IF ." #else" cr THEN }}
246: )) <- else-comment
247:
248: (( ` + {{ start }} nonl ** {{ end
249: dup
250: IF c-flag @
251: IF ." #ifdef HAS_" bounds ?DO I c@ toupper emit LOOP cr
252: THEN
253: forth-flag @
254: IF ." has? " type ." [IF]" cr THEN
255: ELSE 2drop
256: c-flag @
257: IF ." #endif" cr THEN
258: forth-flag @
259: IF ." [THEN]" cr THEN
260: THEN }}
261: )) <- if-comment
262:
263: (( (( forth-comment || c-comment || else-comment || if-comment )) ?? nonl ** )) <- comment-body
264:
265: (( ` \ comment-body nl )) <- comment ( -- )
266:
267: (( {{ effect-in }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} white ** )) ** {{ effect-in-end ! }}
268: ` - ` - white **
269: {{ effect-out }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} white ** )) ** {{ effect-out-end ! }}
270: )) <- stack-effect ( -- )
271:
272: (( {{ s" " doc 2! s" " forth-code 2! }}
273: (( comment || nl )) **
274: (( {{ line @ name-line ! filename 2@ name-filename 2! }}
275: {{ start }} name {{ end 2dup forth-name 2! c-name 2! }} white ++
276: ` ( white ** {{ start }} stack-effect {{ end stack-string 2! }} ` ) white **
277: {{ start }} name {{ end wordset 2! }} white **
278: (( {{ start }} c-name {{ end c-name 2! }} )) ?? nl
279: ))
280: (( ` " ` " {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ??
281: {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl ** nl )) ** {{ end c-code 2! skipsynclines on }}
282: (( ` : nl
283: {{ start }} (( nonl ++ nl )) ++ {{ end forth-code 2! }}
284: )) ??
285: (( nl || eof ))
286: )) <- primitive ( -- )
287:
288: (( (( primitive {{ printprim }} )) ** eof ))
289: parser primitives2something
290: warnings @ [IF]
291: .( parser generated ok ) cr
292: [THEN]
293:
294: : primfilter ( file-id xt -- )
295: \ fileid is for the input file, xt ( -- ) is for the output word
296: output !
297: here dup rawinput ! cookedinput !
298: here unused rot read-file throw
299: dup here + endrawinput !
300: allot
301: align
302: checksyncline
303: \ begin
304: \ getinput dup eof-char = ?EXIT emit true ?nextchar
305: \ again ;
306: primitives2something ;
307:
308: \ types
309:
310: struct
311: 2 cells field type-c-name
312: cell const-field type-d-size
313: cell const-field type-f-size
314: cell const-field type-fetch-handler
315: cell const-field type-store-handler
316: constant type-description
317:
318: : data-stack-access ( n1 n2 n3 -- )
319: \ n1 is the offset of the accessed item, n2, n3 are effect-*-size
320: drop swap - 1- dup
321: if
322: ." sp[" 0 .r ." ]"
323: else
324: drop ." TOS"
325: endif ;
326:
327: : fp-stack-access ( n1 n2 n3 -- )
328: \ n1 is the offset of the accessed item, n2, n3 are effect-*-size
329: nip swap - 1- dup
330: if
331: ." fp[" 0 .r ." ]"
332: else
333: drop ." FTOS"
334: endif ;
335:
336: : fetch-single ( item -- )
337: >r
338: r@ item-name 2@ type
339: ." = ("
340: r@ item-type @ type-c-name 2@ type ." ) "
341: r@ item-d-offset @ effect-in-size 2@ data-stack-access ." ;" cr
342: rdrop ;
343:
344: : fetch-double ( item -- )
345: >r
346: ." FETCH_DCELL("
347: r@ item-name 2@ type ." , "
348: r@ item-d-offset @ dup effect-in-size 2@ data-stack-access
349: ." , " 1+ effect-in-size 2@ data-stack-access
350: ." );" cr
351: rdrop ;
352:
353: : fetch-float ( item -- )
354: >r
355: r@ item-name 2@ type
356: ." = "
357: \ ." (" r@ item-type @ type-c-name 2@ type ." ) "
358: r@ item-f-offset @ effect-in-size 2@ fp-stack-access ." ;" cr
359: rdrop ;
360:
361: : d-same-as-in? ( item -- f )
362: \ f is true iff the offset of item is the same as on input
363: >r
364: r@ item-name 2@ items @ search-wordlist 0=
365: abort" bug"
366: execute @
367: dup r@ =
368: if \ item first appeared in output
369: drop false
370: else
371: item-d-offset @ r@ item-d-offset @ =
372: endif
373: rdrop ;
374:
375: : is-in-tos? ( item -- f )
376: \ true if item has the same offset as the input TOS
377: item-d-offset @ 1+ effect-in-size 2@ drop = ;
378:
379: : is-out-tos? ( item -- f )
380: \ true if item has the same offset as the input TOS
381: item-d-offset @ 1+ effect-out-size 2@ drop = ;
382:
383: : really-store-single ( item -- )
384: >r
385: r@ item-d-offset @ effect-out-size 2@ data-stack-access ." = (Cell)"
386: r@ item-name 2@ type ." ;"
387: rdrop ;
388:
389: : store-single ( item -- )
390: >r
391: r@ d-same-as-in?
392: if
393: r@ is-in-tos? r@ is-out-tos? xor
394: if
395: ." IF_TOS(" r@ really-store-single ." );" cr
396: endif
397: else
398: r@ really-store-single cr
399: endif
400: rdrop ;
401:
402: : store-double ( item -- )
403: \ !! store optimization is not performed, because it is not yet needed
404: >r
405: ." STORE_DCELL(" r@ item-name 2@ type ." , "
406: r@ item-d-offset @ dup effect-out-size 2@ data-stack-access
407: ." , " 1+ effect-out-size 2@ data-stack-access
408: ." );" cr
409: rdrop ;
410:
411: : f-same-as-in? ( item -- f )
412: \ f is true iff the offset of item is the same as on input
413: >r
414: r@ item-name 2@ items @ search-wordlist 0=
415: abort" bug"
416: execute @
417: dup r@ =
418: if \ item first appeared in output
419: drop false
420: else
421: item-f-offset @ r@ item-f-offset @ =
422: endif
423: rdrop ;
424:
425: : is-in-ftos? ( item -- f )
426: \ true if item has the same offset as the input TOS
427: item-f-offset @ 1+ effect-in-size 2@ nip = ;
428:
429: : really-store-float ( item -- )
430: >r
431: r@ item-f-offset @ effect-out-size 2@ fp-stack-access ." = "
432: r@ item-name 2@ type ." ;"
433: rdrop ;
434:
435: : store-float ( item -- )
436: >r
437: r@ f-same-as-in?
438: if
439: r@ is-in-ftos?
440: if
441: ." IF_FTOS(" r@ really-store-float ." );" cr
442: endif
443: else
444: r@ really-store-float cr
445: endif
446: rdrop ;
447:
448: : single-type ( -- xt1 xt2 n1 n2 )
449: ['] fetch-single ['] store-single 1 0 ;
450:
451: : double-type ( -- xt1 xt2 n1 n2 )
452: ['] fetch-double ['] store-double 2 0 ;
453:
454: : float-type ( -- xt1 xt2 n1 n2 )
455: ['] fetch-float ['] store-float 0 1 ;
456:
457: : s, ( addr u -- )
458: \ allocate a string
459: here swap dup allot move ;
460:
461: : starts-with ( addr u xt1 xt2 n1 n2 "prefix" -- )
462: \ describes a type
463: \ addr u specifies the C type name
464: \ n1 is the size of the type on the data stack
465: \ n2 is the size of the type on the FP stack
466: \ stack effect entries of the type start with prefix
467: >r >r >r >r
468: dup >r here >r s,
469: create
470: r> r> 2,
471: r> r> r> , r> , swap , , ;
472:
473: wordlist constant types
474: get-current
475: types set-current
476:
477: s" Bool" single-type starts-with f
478: s" Char" single-type starts-with c
479: s" Cell" single-type starts-with n
480: s" Cell" single-type starts-with w
481: s" UCell" single-type starts-with u
482: s" DCell" double-type starts-with d
483: s" UDCell" double-type starts-with ud
484: s" Float" float-type starts-with r
485: s" Cell *" single-type starts-with a_
486: s" Char *" single-type starts-with c_
487: s" Float *" single-type starts-with f_
488: s" DFloat *" single-type starts-with df_
489: s" SFloat *" single-type starts-with sf_
490: s" Xt" single-type starts-with xt
491: s" WID" single-type starts-with wid
492: s" struct F83Name *" single-type starts-with f83name
493:
494: set-current
495:
496: : get-type ( addr1 u1 -- type-descr )
497: \ get the type of the name in addr1 u1
498: \ type-descr is a pointer to a type-descriptor
499: 0 swap ?do
500: dup i types search-wordlist
501: if \ ok, we have the type ( addr1 xt )
502: execute nip
503: UNLOOP EXIT
504: endif
505: -1 s+loop
506: \ we did not find a type, abort
507: true abort" unknown type prefix" ;
508:
509: : declare ( addr "name" -- )
510: \ remember that there is a stack item at addr called name
511: create , ;
512:
513: : declaration ( item -- )
514: dup item-name 2@ items @ search-wordlist
515: if \ already declared ( item xt )
516: execute @ item-type @ swap item-type !
517: else ( addr )
518: dup item-name 2@ nextname dup declare ( addr )
519: dup >r item-name 2@ 2dup get-type ( addr1 u type-descr )
520: dup r> item-type ! ( addr1 u type-descr )
521: type-c-name 2@ type space type ." ;" cr
522: endif ;
523:
524: : declaration-list ( addr1 addr2 -- )
525: swap ?do
526: i declaration
527: item-descr +loop ;
528:
529: : fetch ( addr -- )
530: dup item-type @ type-fetch-handler execute ;
531:
532: : declarations ( -- )
533: wordlist dup items ! set-current
534: effect-in effect-in-end @ declaration-list
535: effect-out effect-out-end @ declaration-list ;
536:
537: \ offset computation
538: \ the leftmost (i.e. deepest) item has offset 0
539: \ the rightmost item has the highest offset
540:
541: : compute-offset ( n1 n2 item -- n3 n4 )
542: \ n1, n3 are data-stack-offsets
543: \ n2, n4 are the fp-stack-offsets
544: >r
545: swap dup r@ item-d-offset !
546: r@ item-type @ type-d-size +
547: swap dup r@ item-f-offset !
548: r@ item-type @ type-f-size +
549: rdrop ;
550:
551: : compute-list ( addr1 addr2 -- n1 n2 )
552: \ n1, n2 are the final offsets
553: 0 0 2swap swap ?do
554: i compute-offset
555: item-descr +loop ;
556:
557: : compute-offsets ( -- )
558: effect-in effect-in-end @ compute-list effect-in-size 2!
559: effect-out effect-out-end @ compute-list effect-out-size 2! ;
560:
561: : flush-tos ( -- )
562: effect-in-size 2@ effect-out-size 2@
563: 0<> rot 0= and
564: if
565: ." IF_FTOS(fp[0] = FTOS);" cr
566: endif
567: 0<> swap 0= and
568: if
569: ." IF_TOS(sp[0] = TOS);" cr
570: endif ;
571:
572: : fill-tos ( -- )
573: effect-in-size 2@ effect-out-size 2@
574: 0= rot 0<> and
575: if
576: ." IF_FTOS(FTOS = fp[0]);" cr
577: endif
578: 0= swap 0<> and
579: if
580: ." IF_TOS(TOS = sp[0]);" cr
581: endif ;
582:
583: : fetches ( -- )
584: effect-in-end @ effect-in ?do
585: i fetch
586: item-descr +loop ;
587:
588: : stack-pointer-updates ( -- )
589: \ we need not check if an update is a noop; gcc does this for us
590: effect-in-size 2@
591: effect-out-size 2@
592: rot swap - ( d-in d-out f-diff )
593: rot rot - ( f-diff d-diff )
594: ?dup IF ." sp += " 0 .r ." ;" cr THEN
595: ?dup IF ." fp += " 0 .r ." ;" cr THEN ;
596:
597: : store ( item -- )
598: \ f is true if the item should be stored
599: \ f is false if the store is probably not necessary
600: dup item-type @ type-store-handler execute ;
601:
602: : stores ( -- )
603: effect-out-end @ effect-out ?do
604: i store
605: item-descr +loop ;
606:
607: : .stack-list ( start end -- )
608: swap ?do
609: i item-name 2@ type space
610: item-descr +loop ;
611:
612: : output-c ( -- )
613: ." I_" c-name 2@ type ." : /* " forth-name 2@ type ." ( " stack-string 2@ type ." ) */" cr
614: ." /* " doc 2@ type ." */" cr
615: ." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr \ debugging
616: ." {" cr
617: ." DEF_CA" cr
618: declarations
619: compute-offsets \ for everything else
620: ." NEXT_P0;" cr
621: flush-tos
622: fetches
623: stack-pointer-updates
624: ." {" cr
625: ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr
626: c-code 2@ type
627: ." }" cr
628: ." NEXT_P1;" cr
629: stores
630: fill-tos
631: ." NEXT_P2;" cr
632: ." }" cr
633: cr
634: ;
635:
636: : dstack-used?
637: effect-in-size 2@ drop
638: effect-out-size 2@ drop max 0<> ;
639:
640: : fstack-used?
641: effect-in-size 2@ nip
642: effect-out-size 2@ nip max 0<> ;
643:
644: : output-funclabel ( -- )
645: 1 function-number +!
646: ." &I_" c-name 2@ type ." ," cr ;
647:
648: : output-forthname ( -- )
649: 1 function-number +!
650: '" emit forth-name 2@ type '" emit ." ," cr ;
651:
652: : output-c-func ( -- )
653: \ used for word libraries
654: 1 function-number +!
655: ." Cell * I_" c-name 2@ type ." (Cell *SP, Cell **FP) /* " forth-name 2@ type
656: ." ( " stack-string 2@ type ." ) */" cr
657: ." /* " doc 2@ type ." */" cr
658: ." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr
659: \ debugging
660: ." {" cr
661: declarations
662: compute-offsets \ for everything else
663: dstack-used? IF ." Cell *sp=SP;" cr THEN
664: fstack-used? IF ." Cell *fp=*FP;" cr THEN
665: flush-tos
666: fetches
667: stack-pointer-updates
668: fstack-used? IF ." *FP=fp;" cr THEN
669: ." {" cr
670: ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr
671: c-code 2@ type
672: ." }" cr
673: stores
674: fill-tos
675: ." return (sp);" cr
676: ." }" cr
677: cr ;
678:
679: : output-label ( -- )
680: ." (Label)&&I_" c-name 2@ type ." ," cr
681: -1 primitive-number +! ;
682:
683: : output-alias ( -- )
684: ( primitive-number @ . ." alias " ) ." Primitive " forth-name 2@ type cr
685: -1 primitive-number +! ;
686:
687: : output-forth ( -- )
688: forth-code @ 0=
689: IF \ output-alias
690: \ this is bad for ec: an alias is compiled if tho word does not exist!
691: \ JAW
692: ELSE ." : " forth-name 2@ type ." ( "
693: effect-in effect-in-end @ .stack-list ." -- "
694: effect-out effect-out-end @ .stack-list ." )" cr
695: forth-code 2@ type cr
696: -1 primitive-number +!
697: THEN ;
698:
699: : output-tag-file ( -- )
700: name-filename 2@ last-name-filename 2@ compare if
701: name-filename 2@ last-name-filename 2!
702: #ff emit cr
703: name-filename 2@ type
704: ." ,0" cr
705: endif ;
706:
707: : output-tag ( -- )
708: output-tag-file
709: forth-name 2@ 1+ type
710: 127 emit
711: space forth-name 2@ type space
712: 1 emit
713: name-line @ 0 .r
714: ." ,0" cr ;
715:
716: [IFDEF] documentation
717: : register-doc ( -- )
718: get-current documentation set-current
719: forth-name 2@ nextname create
720: forth-name 2@ 2,
721: stack-string 2@ condition-stack-effect 2,
722: wordset 2@ 2,
723: c-name 2@ condition-pronounciation 2,
724: doc 2@ 2,
725: set-current ;
726: [THEN]
727:
728: : process-file ( addr u xt -- )
729: >r
730: 2dup filename 2!
731: 0 function-number !
732: r/o open-file abort" cannot open file"
733: warnings @ if
734: ." ------------ CUT HERE -------------" cr endif
735: r> primfilter ;
736:
737: : process ( xt -- )
738: bl word count rot
739: process-file ;
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