-
Notifications
You must be signed in to change notification settings - Fork 0
/
ctangle.c
1579 lines (1316 loc) · 29.6 KB
/
ctangle.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*1:*/
#line 64 "ctangle.w"
/*6:*/
#line 35 "common.h"
#include <stdio.h>
/*:6*//*62:*/
#line 888 "ctangle.w"
#include <ctype.h>
#include <stdlib.h>
/*:62*/
#line 65 "ctangle.w"
#define banner "This is CTANGLE (Version 3.64)\n" \
#define max_bytes 90000 \
#define max_toks 270000
#define max_names 4000 \
#define max_texts 2500
#define hash_size 353
#define longest_name 10000
#define stack_size 50
#define buf_size 100 \
#define ctangle 0
#define cweave 1 \
#define and_and 04
#define lt_lt 020
#define gt_gt 021
#define plus_plus 013
#define minus_minus 01
#define minus_gt 031
#define not_eq 032
#define lt_eq 034
#define gt_eq 035
#define eq_eq 036
#define or_or 037
#define dot_dot_dot 016
#define colon_colon 06
#define period_ast 026
#define minus_gt_ast 027 \
#define xisalpha(c) (isalpha(c) &&((eight_bits) c<0200) )
#define xisdigit(c) (isdigit(c) &&((eight_bits) c<0200) )
#define xisspace(c) (isspace(c) &&((eight_bits) c<0200) )
#define xislower(c) (islower(c) &&((eight_bits) c<0200) )
#define xisupper(c) (isupper(c) &&((eight_bits) c<0200) )
#define xisxdigit(c) (isxdigit(c) &&((eight_bits) c<0200) ) \
#define length(c) (c+1) ->byte_start-(c) ->byte_start
#define print_id(c) term_write((c) ->byte_start,length((c) ) )
#define llink link
#define rlink dummy.Rlink
#define root name_dir->rlink \
#define chunk_marker 0 \
#define spotless 0
#define harmless_message 1
#define error_message 2
#define fatal_message 3
#define mark_harmless {if(history==spotless) history= harmless_message;}
#define mark_error history= error_message
#define confusion(s) fatal("! This can't happen: ",s) \
#define max_file_name_length 60
#define cur_file file[include_depth]
#define cur_file_name file_name[include_depth]
#define web_file_name file_name[0]
#define cur_line line[include_depth] \
#define show_banner flags['b']
#define show_progress flags['p']
#define show_happiness flags['h'] \
#define update_terminal fflush(stdout)
#define new_line putchar('\n')
#define putxchar putchar
#define term_write(a,b) fflush(stdout) ,fwrite(a,sizeof(char) ,b,stdout)
#define C_printf(c,a) fprintf(C_file,c,a)
#define C_putc(c) putc(c,C_file) \
#define equiv equiv_or_xref \
#define section_flag max_texts \
#define string 02
#define join 0177
#define output_defs_flag (2*024000-1) \
#define cur_end cur_state.end_field
#define cur_byte cur_state.byte_field
#define cur_name cur_state.name_field
#define cur_repl cur_state.repl_field
#define cur_section cur_state.section_field \
#define section_number 0201
#define identifier 0202 \
#define normal 0
#define num_or_id 1
#define post_slash 2
#define unbreakable 3
#define verbatim 4 \
#define max_files 256
#define translit_length 10 \
#define ignore 0
#define ord 0302
#define control_text 0303
#define translit_code 0304
#define output_defs_code 0305
#define format_code 0306
#define definition 0307
#define begin_C 0310
#define section_name 0311
#define new_section 0312 \
#define constant 03 \
#define isxalpha(c) ((c) =='_'||(c) =='$') \
#define ishigh(c) ((unsigned char) (c) > 0177) \
\
#define compress(c) if(loc++<=limit) return(c) \
#define macro 0
#define app_repl(c) {if(tok_ptr==tok_mem_end) overflow("token") ;*tok_ptr++= c;} \
#line 66 "ctangle.w"
/*5:*/
#line 29 "common.h"
typedef short boolean;
typedef char unsigned eight_bits;
extern boolean program;
extern int phase;
/*:5*//*7:*/
#line 57 "common.h"
char section_text[longest_name+1];
char*section_text_end= section_text+longest_name;
char*id_first;
char*id_loc;
/*:7*//*8:*/
#line 72 "common.h"
extern char buffer[];
extern char*buffer_end;
extern char*loc;
extern char*limit;
/*:8*//*9:*/
#line 87 "common.h"
typedef struct name_info{
char*byte_start;
struct name_info*link;
union{
struct name_info*Rlink;
char Ilk;
}dummy;
char*equiv_or_xref;
}name_info;
typedef name_info*name_pointer;
typedef name_pointer*hash_pointer;
extern char byte_mem[];
extern char*byte_mem_end;
extern name_info name_dir[];
extern name_pointer name_dir_end;
extern name_pointer name_ptr;
extern char*byte_ptr;
extern name_pointer hash[];
extern hash_pointer hash_end;
extern hash_pointer h;
extern name_pointer id_lookup();
extern name_pointer section_lookup();
extern void print_section_name(),sprint_section_name();
/*:9*//*10:*/
#line 122 "common.h"
extern history;
extern err_print();
extern wrap_up();
extern void fatal();
extern void overflow();
/*:10*//*11:*/
#line 137 "common.h"
extern include_depth;
extern FILE*file[];
extern FILE*change_file;
extern char C_file_name[];
extern char tex_file_name[];
extern char idx_file_name[];
extern char scn_file_name[];
extern char file_name[][max_file_name_length];
extern char change_file_name[];
extern line[];
extern change_line;
extern change_depth;
extern boolean input_has_ended;
extern boolean changing;
extern boolean web_file_open;
extern reset_input();
extern get_line();
extern check_complete();
/*:11*//*12:*/
#line 159 "common.h"
typedef unsigned short sixteen_bits;
extern sixteen_bits section_count;
extern boolean changed_section[];
extern boolean change_pending;
extern boolean print_where;
/*:12*//*13:*/
#line 171 "common.h"
extern int argc;
extern char**argv;
extern boolean flags[];
/*:13*//*14:*/
#line 183 "common.h"
extern FILE*C_file;
extern FILE*tex_file;
extern FILE*idx_file;
extern FILE*scn_file;
extern FILE*active_file;
/*:14*//*15:*/
#line 192 "common.h"
extern void common_init();
#line 128 "ctangle.w"
/*:15*/
#line 67 "ctangle.w"
/*16:*/
#line 152 "ctangle.w"
typedef struct{
eight_bits*tok_start;
sixteen_bits text_link;
}text;
typedef text*text_pointer;
/*:16*//*27:*/
#line 296 "ctangle.w"
typedef struct{
eight_bits*end_field;
eight_bits*byte_field;
name_pointer name_field;
text_pointer repl_field;
sixteen_bits section_field;
}output_state;
typedef output_state*stack_pointer;
/*:27*/
#line 68 "ctangle.w"
/*17:*/
#line 159 "ctangle.w"
text text_info[max_texts];
text_pointer text_info_end= text_info+max_texts-1;
text_pointer text_ptr;
eight_bits tok_mem[max_toks];
eight_bits*tok_mem_end= tok_mem+max_toks-1;
eight_bits*tok_ptr;
/*:17*//*23:*/
#line 227 "ctangle.w"
text_pointer last_unnamed;
/*:23*//*28:*/
#line 312 "ctangle.w"
output_state cur_state;
output_state stack[stack_size+1];
stack_pointer stack_ptr;
stack_pointer stack_end= stack+stack_size;
/*:28*//*32:*/
#line 384 "ctangle.w"
int cur_val;
/*:32*//*36:*/
#line 473 "ctangle.w"
eight_bits out_state;
boolean protect;
/*:36*//*38:*/
#line 502 "ctangle.w"
name_pointer output_files[max_files];
name_pointer*cur_out_file,*end_output_files,*an_output_file;
char cur_section_name_char;
char output_file_name[longest_name];
/*:38*//*45:*/
#line 599 "ctangle.w"
boolean output_defs_seen= 0;
/*:45*//*51:*/
#line 710 "ctangle.w"
char translit[128][translit_length];
/*:51*//*56:*/
#line 789 "ctangle.w"
eight_bits ccode[256];
/*:56*//*59:*/
#line 845 "ctangle.w"
boolean comment_continues= 0;
/*:59*//*61:*/
#line 884 "ctangle.w"
name_pointer cur_section_name;
int no_where;
/*:61*//*75:*/
#line 1195 "ctangle.w"
text_pointer cur_text;
eight_bits next_control;
/*:75*//*82:*/
#line 1353 "ctangle.w"
extern sixteen_bits section_count;
/*:82*/
#line 69 "ctangle.w"
/*2:*/
#line 77 "ctangle.w"
extern int strlen();
extern int strcmp();
extern char*strcpy();
extern int strncmp();
extern char*strncpy();
/*:2*//*41:*/
#line 533 "ctangle.w"
void phase_two();
/*:41*//*46:*/
#line 602 "ctangle.w"
void output_defs();
/*:46*//*48:*/
#line 648 "ctangle.w"
static void out_char();
/*:48*//*90:*/
#line 1460 "ctangle.w"
void phase_one();
/*:90*//*92:*/
#line 1478 "ctangle.w"
void skip_limbo();
/*:92*/
#line 70 "ctangle.w"
/*:1*//*3:*/
#line 91 "ctangle.w"
int main(ac,av)
int ac;
char**av;
{
argc= ac;argv= av;
program= ctangle;
/*18:*/
#line 167 "ctangle.w"
text_info->tok_start= tok_ptr= tok_mem;
text_ptr= text_info+1;text_ptr->tok_start= tok_mem;
/*:18*//*20:*/
#line 177 "ctangle.w"
name_dir->equiv= (char*)text_info;
/*:20*//*24:*/
#line 230 "ctangle.w"
last_unnamed= text_info;text_info->text_link= 0;
/*:24*//*39:*/
#line 512 "ctangle.w"
cur_out_file= end_output_files= output_files+max_files;
/*:39*//*52:*/
#line 713 "ctangle.w"
{
int i;
for(i= 0;i<128;i++)sprintf(translit[i],"X%02X",(unsigned)(128+i));
}
/*:52*//*57:*/
#line 792 "ctangle.w"
{
int c;
for(c= 0;c<256;c++)ccode[c]= ignore;
ccode[' ']= ccode['\t']= ccode['\n']= ccode['\v']= ccode['\r']= ccode['\f']
= ccode['*']= new_section;
ccode['@']= '@';ccode['=']= string;
ccode['d']= ccode['D']= definition;
ccode['f']= ccode['F']= ccode['s']= ccode['S']= format_code;
ccode['c']= ccode['C']= ccode['p']= ccode['P']= begin_C;
ccode['^']= ccode[':']= ccode['.']= ccode['t']= ccode['T']=
ccode['q']= ccode['Q']= control_text;
ccode['h']= ccode['H']= output_defs_code;
ccode['l']= ccode['L']= translit_code;
ccode['&']= join;
ccode['<']= ccode['(']= section_name;
ccode['\'']= ord;
}
/*:57*//*71:*/
#line 1116 "ctangle.w"
section_text[0]= ' ';
/*:71*/
#line 98 "ctangle.w"
;
common_init();
if(show_banner)printf(banner);
phase_one();
phase_two();
return wrap_up();
}
/*:3*//*21:*/
#line 183 "ctangle.w"
int names_match(p,first,l)
name_pointer p;
char*first;
int l;
{
if(length(p)!=l)return 0;
return!strncmp(first,p->byte_start,l);
}
/*:21*//*22:*/
#line 198 "ctangle.w"
void
init_node(node)
name_pointer node;
{
node->equiv= (char*)text_info;
}
void
init_p(){}
/*:22*//*26:*/
#line 260 "ctangle.w"
void
store_two_bytes(x)
sixteen_bits x;
{
if(tok_ptr+2> tok_mem_end)overflow("token");
*tok_ptr++= x>>8;
*tok_ptr++= x&0377;
}
/*:26*//*30:*/
#line 336 "ctangle.w"
void
push_level(p)
name_pointer p;
{
if(stack_ptr==stack_end)overflow("stack");
*stack_ptr= cur_state;
stack_ptr++;
if(p!=NULL){
cur_name= p;cur_repl= (text_pointer)p->equiv;
cur_byte= cur_repl->tok_start;cur_end= (cur_repl+1)->tok_start;
cur_section= 0;
}
}
/*:30*//*31:*/
#line 355 "ctangle.w"
void
pop_level(flag)
int flag;
{
if(flag&&cur_repl->text_link<section_flag){
cur_repl= cur_repl->text_link+text_info;
cur_byte= cur_repl->tok_start;cur_end= (cur_repl+1)->tok_start;
return;
}
stack_ptr--;
if(stack_ptr> stack)cur_state= *stack_ptr;
}
/*:31*//*33:*/
#line 391 "ctangle.w"
void
get_output()
{
sixteen_bits a;
restart:if(stack_ptr==stack)return;
if(cur_byte==cur_end){
cur_val= -((int)cur_section);
pop_level(1);
if(cur_val==0)goto restart;
out_char(section_number);return;
}
a= *cur_byte++;
if(out_state==verbatim&&a!=string&&a!=constant&&a!='\n')
C_putc(a);
else if(a<0200)out_char(a);
else{
a= (a-0200)*0400+*cur_byte++;
switch(a/024000){
case 0:cur_val= a;out_char(identifier);break;
case 1:if(a==output_defs_flag)output_defs();
else/*34:*/
#line 423 "ctangle.w"
{
a-= 024000;
if((a+name_dir)->equiv!=(char*)text_info)push_level(a+name_dir);
else if(a!=0){
printf("\n! Not present: <");
print_section_name(a+name_dir);err_print(">");
}
goto restart;
}
/*:34*/
#line 412 "ctangle.w"
;
break;
default:cur_val= a-050000;if(cur_val> 0)cur_section= cur_val;
out_char(section_number);
}
}
}
/*:33*//*37:*/
#line 481 "ctangle.w"
void
flush_buffer()
{
C_putc('\n');
if(cur_line%100==0&&show_progress){
printf(".");
if(cur_line%500==0)printf("%d",cur_line);
update_terminal;
}
cur_line++;
}
/*:37*//*42:*/
#line 536 "ctangle.w"
void
phase_two(){
web_file_open= 0;
cur_line= 1;
/*29:*/
#line 325 "ctangle.w"
stack_ptr= stack+1;cur_name= name_dir;cur_repl= text_info->text_link+text_info;
cur_byte= cur_repl->tok_start;cur_end= (cur_repl+1)->tok_start;cur_section= 0;
/*:29*/
#line 541 "ctangle.w"
;
/*44:*/
#line 595 "ctangle.w"
if(!output_defs_seen)
output_defs();
/*:44*/
#line 542 "ctangle.w"
;
if(text_info->text_link==0&&cur_out_file==end_output_files){
printf("\n! No program text was specified.");mark_harmless;
}
else{
if(cur_out_file==end_output_files){
if(show_progress)
printf("\nWriting the output file (%s):",C_file_name);
}
else{
if(show_progress){
printf("\nWriting the output files:");
printf(" (%s)",C_file_name);
update_terminal;
}
if(text_info->text_link==0)goto writeloop;
}
while(stack_ptr> stack)get_output();
flush_buffer();
writeloop:/*43:*/
#line 572 "ctangle.w"
for(an_output_file= end_output_files;an_output_file> cur_out_file;){
an_output_file--;
sprint_section_name(output_file_name,*an_output_file);
fclose(C_file);
C_file= fopen(output_file_name,"w");
if(C_file==0)fatal("! Cannot open output file:",output_file_name);
printf("\n(%s)",output_file_name);update_terminal;
cur_line= 1;
stack_ptr= stack+1;
cur_name= (*an_output_file);
cur_repl= (text_pointer)cur_name->equiv;
cur_byte= cur_repl->tok_start;
cur_end= (cur_repl+1)->tok_start;
while(stack_ptr> stack)get_output();
flush_buffer();
}
/*:43*/
#line 563 "ctangle.w"
;
if(show_happiness)printf("\nDone.");
}
}
/*:42*//*47:*/
#line 605 "ctangle.w"
void
output_defs()
{
sixteen_bits a;
push_level(NULL);
for(cur_text= text_info+1;cur_text<text_ptr;cur_text++)
if(cur_text->text_link==0){
cur_byte= cur_text->tok_start;
cur_end= (cur_text+1)->tok_start;
C_printf("%s","#define ");
out_state= normal;
protect= 1;
while(cur_byte<cur_end){
a= *cur_byte++;
if(cur_byte==cur_end&&a=='\n')break;
if(out_state==verbatim&&a!=string&&a!=constant&&a!='\n')
C_putc(a);
else if(a<0200)out_char(a);
else{
a= (a-0200)*0400+*cur_byte++;
if(a<024000){
cur_val= a;out_char(identifier);
}
else if(a<050000){confusion("macro defs have strange char");}
else{
cur_val= a-050000;cur_section= cur_val;out_char(section_number);
}
}
}
protect= 0;
flush_buffer();
}
pop_level(0);
}
/*:47*//*49:*/
#line 651 "ctangle.w"
static void
out_char(cur_char)
eight_bits cur_char;
{
char*j,*k;
restart:
switch(cur_char){
case'\n':if(protect&&out_state!=verbatim)C_putc(' ');
if(protect||out_state==verbatim)C_putc('\\');
flush_buffer();if(out_state!=verbatim)out_state= normal;break;
/*53:*/
#line 719 "ctangle.w"
case identifier:
if(out_state==num_or_id)C_putc(' ');
j= (cur_val+name_dir)->byte_start;
k= (cur_val+name_dir+1)->byte_start;
while(j<k){
if((unsigned char)(*j)<0200)C_putc(*j);
else C_printf("%s",translit[(unsigned char)(*j)-0200]);
j++;
}
out_state= num_or_id;break;
/*:53*/
#line 662 "ctangle.w"
;
/*54:*/
#line 732 "ctangle.w"
case section_number:
if(cur_val> 0)C_printf("/*%d:*/",cur_val);
else if(cur_val<0)C_printf("/*:%d*/",-cur_val);
else if(protect){
cur_byte+= 4;
cur_char= '\n';
goto restart;
}else{
sixteen_bits a;
a= 0400**cur_byte++;
a+= *cur_byte++;
C_printf("\n#line %d \"",a);
cur_val= *cur_byte++;
cur_val= 0400*(cur_val-0200)+*cur_byte++;
for(j= (cur_val+name_dir)->byte_start,k= (cur_val+name_dir+1)->byte_start;
j<k;j++){
if(*j=='\\'||*j=='"')C_putc('\\');
C_putc(*j);
}
C_printf("%s","\"\n");
}
break;
/*:54*/
#line 663 "ctangle.w"
;
/*50:*/
#line 681 "ctangle.w"
case plus_plus:C_putc('+');C_putc('+');out_state= normal;break;
case minus_minus:C_putc('-');C_putc('-');out_state= normal;break;
case minus_gt:C_putc('-');C_putc('>');out_state= normal;break;
case gt_gt:C_putc('>');C_putc('>');out_state= normal;break;
case eq_eq:C_putc('=');C_putc('=');out_state= normal;break;
case lt_lt:C_putc('<');C_putc('<');out_state= normal;break;
case gt_eq:C_putc('>');C_putc('=');out_state= normal;break;
case lt_eq:C_putc('<');C_putc('=');out_state= normal;break;
case not_eq:C_putc('!');C_putc('=');out_state= normal;break;
case and_and:C_putc('&');C_putc('&');out_state= normal;break;
case or_or:C_putc('|');C_putc('|');out_state= normal;break;
case dot_dot_dot:C_putc('.');C_putc('.');C_putc('.');out_state= normal;
break;
case colon_colon:C_putc(':');C_putc(':');out_state= normal;break;
case period_ast:C_putc('.');C_putc('*');out_state= normal;break;
case minus_gt_ast:C_putc('-');C_putc('>');C_putc('*');out_state= normal;
break;
/*:50*/
#line 664 "ctangle.w"
;
case'=':case'>':C_putc(cur_char);C_putc(' ');
out_state= normal;break;
case join:out_state= unbreakable;break;
case constant:if(out_state==verbatim){
out_state= num_or_id;break;
}
if(out_state==num_or_id)C_putc(' ');out_state= verbatim;break;
case string:if(out_state==verbatim)out_state= normal;
else out_state= verbatim;break;
case'/':C_putc('/');out_state= post_slash;break;
case'*':if(out_state==post_slash)C_putc(' ');
default:C_putc(cur_char);out_state= normal;break;
}
}
/*:49*//*58:*/
#line 813 "ctangle.w"
eight_bits
skip_ahead()
{
eight_bits c;
while(1){
if(loc> limit&&(get_line()==0))return(new_section);
*(limit+1)= '@';
while(*loc!='@')loc++;
if(loc<=limit){
loc++;c= ccode[(eight_bits)*loc];loc++;
if(c!=ignore||*(loc-1)=='>')return(c);
}
}
}
/*:58*//*60:*/
#line 848 "ctangle.w"
int skip_comment(is_long_comment)
boolean is_long_comment;
{
char c;
while(1){
if(loc> limit){
if(is_long_comment){
if(get_line())return(comment_continues= 1);
else{
err_print("! Input ended in mid-comment");
return(comment_continues= 0);
}
}
else return(comment_continues= 0);
}
c= *(loc++);
if(is_long_comment&&c=='*'&&*loc=='/'){
loc++;return(comment_continues= 0);
}
if(c=='@'){
if(ccode[(eight_bits)*loc]==new_section){
err_print("! Section name ended in mid-comment");loc--;
return(comment_continues= 0);
}
else loc++;
}
}
}
/*:60*//*63:*/
#line 900 "ctangle.w"
eight_bits
get_next()
{
static int preprocessing= 0;
eight_bits c;
while(1){
if(loc> limit){
if(preprocessing&&*(limit-1)!='\\')preprocessing= 0;
if(get_line()==0)return(new_section);
else if(print_where&&!no_where){
print_where= 0;
/*77:*/
#line 1225 "ctangle.w"
store_two_bytes(0150000);
if(changing&&include_depth==change_depth){
id_first= change_file_name;
store_two_bytes((sixteen_bits)change_line);
}else{
id_first= cur_file_name;
store_two_bytes((sixteen_bits)cur_line);
}
id_loc= id_first+strlen(id_first);
{int a= id_lookup(id_first,id_loc,0)-name_dir;app_repl((a/0400)+0200);
app_repl(a%0400);}
/*:77*/
#line 912 "ctangle.w"
;
}
else return('\n');
}
c= *loc;
if(comment_continues||(c=='/'&&(*(loc+1)=='*'||*(loc+1)=='/'))){
skip_comment(comment_continues||*(loc+1)=='*');
if(comment_continues)return('\n');
else continue;
}
loc++;
if(xisdigit(c)||c=='.')/*66:*/
#line 978 "ctangle.w"
{
id_first= loc-1;
if(*id_first=='.'&&!xisdigit(*loc))goto mistake;
if(*id_first=='0'){
if(*loc=='x'||*loc=='X'){
loc++;while(xisxdigit(*loc))loc++;goto found;
}
}
while(xisdigit(*loc))loc++;
if(*loc=='.'){
loc++;
while(xisdigit(*loc))loc++;
}
if(*loc=='e'||*loc=='E'){
if(*++loc=='+'||*loc=='-')loc++;
while(xisdigit(*loc))loc++;
}
found:while(*loc=='u'||*loc=='U'||*loc=='l'||*loc=='L'
||*loc=='f'||*loc=='F')loc++;
id_loc= loc;
return(constant);
}
/*:66*/
#line 924 "ctangle.w"
else if(c=='\''||c=='"'||(c=='L'&&(*loc=='\''||*loc=='"')))
/*67:*/
#line 1006 "ctangle.w"
{
char delim= c;
id_first= section_text+1;
id_loc= section_text;*++id_loc= delim;
if(delim=='L'){
delim= *loc++;*++id_loc= delim;
}
while(1){
if(loc>=limit){
if(*(limit-1)!='\\'){
err_print("! String didn't end");loc= limit;break;
}
if(get_line()==0){
err_print("! Input ended in middle of string");loc= buffer;break;
}
else if(++id_loc<=section_text_end)*id_loc= '\n';
}
if((c= *loc++)==delim){
if(++id_loc<=section_text_end)*id_loc= c;
break;
}
if(c=='\\'){
if(loc>=limit)continue;
if(++id_loc<=section_text_end)*id_loc= '\\';
c= *loc++;
}
if(++id_loc<=section_text_end)*id_loc= c;
}
if(id_loc>=section_text_end){
printf("\n! String too long: ");
term_write(section_text+1,25);
err_print("...");
}
id_loc++;
return(string);
}
/*:67*/
#line 926 "ctangle.w"
else if(isalpha(c)||isxalpha(c)||ishigh(c))
/*65:*/
#line 972 "ctangle.w"
{
id_first= --loc;
while(isalpha(*++loc)||isdigit(*loc)||isxalpha(*loc)||ishigh(*loc));
id_loc= loc;return(identifier);
}