18 #define banner "This is CTANGLE (Version 3.64)\n" \
20 #define max_bytes 90000 \
22 #define max_toks 270000
23 #define max_names 4000 \
25 #define max_texts 2500
27 #define longest_name 10000
29 #define buf_size 100 \
38 #define minus_minus 01
45 #define dot_dot_dot 016
46 #define colon_colon 06
47 #define period_ast 026
48 #define minus_gt_ast 027 \
50 #define xisalpha(c) (isalpha(c) &&((eight_bits) c<0200) )
51 #define xisdigit(c) (isdigit(c) &&((eight_bits) c<0200) )
52 #define xisspace(c) (isspace(c) &&((eight_bits) c<0200) )
53 #define xislower(c) (islower(c) &&((eight_bits) c<0200) )
54 #define xisupper(c) (isupper(c) &&((eight_bits) c<0200) )
55 #define xisxdigit(c) (isxdigit(c) &&((eight_bits) c<0200) ) \
57 #define length(c) (c+1) ->byte_start-(c) ->byte_start
58 #define print_id(c) term_write((c) ->byte_start,length((c) ) )
60 #define rlink dummy.Rlink
61 #define root name_dir->rlink \
63 #define chunk_marker 0 \
66 #define harmless_message 1
67 #define error_message 2
68 #define fatal_message 3
69 #define mark_harmless {if(history==spotless) history= harmless_message;}
70 #define mark_error history= error_message
71 #define confusion(s) fatal("! This can't happen: ",s) \
73 #define max_file_name_length 60
74 #define cur_file file[include_depth]
75 #define cur_file_name file_name[include_depth]
76 #define web_file_name file_name[0]
77 #define cur_line line[include_depth] \
79 #define show_banner flags['b']
80 #define show_progress flags['p']
81 #define show_happiness flags['h'] \
83 #define update_terminal fflush(stdout)
84 #define new_line putchar('\n')
85 #define putxchar putchar
86 #define term_write(a,b) fflush(stdout) ,fwrite(a,sizeof(char) ,b,stdout)
87 #define C_printf(c,a) fprintf(C_file,c,a)
88 #define C_putc(c) putc(c,C_file) \
90 #define equiv equiv_or_xref \
92 #define section_flag max_texts \
96 #define output_defs_flag (2*024000-1) \
98 #define cur_end cur_state.end_field
99 #define cur_byte cur_state.byte_field
100 #define cur_name cur_state.name_field
101 #define cur_repl cur_state.repl_field
102 #define cur_section cur_state.section_field \
104 #define section_number 0201
105 #define identifier 0202 \
110 #define unbreakable 3
113 #define max_files 256
114 #define translit_length 10 \
118 #define control_text 0303
119 #define translit_code 0304
120 #define output_defs_code 0305
121 #define format_code 0306
122 #define definition 0307
124 #define section_name 0311
125 #define new_section 0312 \
127 #define constant 03 \
129 #define isxalpha(c) ((c) =='_'||(c) =='$') \
131 #define ishigh(c) ((unsigned char) (c) > 0177) \
134 #define compress(c) if(loc++<=limit) return(c) \
137 #define app_repl(c) {if(tok_ptr==tok_mem_end) overflow("token") ;*tok_ptr++= c;} \
145 typedef short boolean;
146 typedef char unsigned eight_bits;
147 extern boolean program;
153 char section_text[longest_name+1];
154 char*section_text_end= section_text+longest_name;
161 extern char buffer[];
162 extern char*buffer_end;
169 typedef struct name_info{
171 struct name_info*link;
173 struct name_info*Rlink;
179 typedef name_info*name_pointer;
180 typedef name_pointer*hash_pointer;
181 extern char byte_mem[];
182 extern char*byte_mem_end;
183 extern name_info name_dir[];
184 extern name_pointer name_dir_end;
185 extern name_pointer name_ptr;
186 extern char*byte_ptr;
187 extern name_pointer hash[];
188 extern hash_pointer hash_end;
189 extern hash_pointer h;
190 extern name_pointer id_lookup();
191 extern name_pointer section_lookup();
192 extern void print_section_name(),sprint_section_name();
201 extern void overflow();
206 extern include_depth;
208 extern FILE*change_file;
209 extern char C_file_name[];
210 extern char tex_file_name[];
211 extern char idx_file_name[];
212 extern char scn_file_name[];
213 extern char file_name[][max_file_name_length];
215 extern char change_file_name[];
218 extern boolean input_has_ended;
219 extern boolean changing;
220 extern boolean web_file_open;
221 extern reset_input();
223 extern check_complete();
228 typedef unsigned short sixteen_bits;
229 extern sixteen_bits section_count;
230 extern boolean changed_section[];
231 extern boolean change_pending;
232 extern boolean print_where;
239 extern boolean flags[];
245 extern FILE*tex_file;
246 extern FILE*idx_file;
247 extern FILE*scn_file;
248 extern FILE*active_file;
253 extern void common_init();
254 #line 128 "ctangle.w"
260 #line 152 "ctangle.w"
263 eight_bits*tok_start;
264 sixteen_bits text_link;
266 typedef text*text_pointer;
269 #line 296 "ctangle.w"
272 eight_bits*end_field;
273 eight_bits*byte_field;
274 name_pointer name_field;
275 text_pointer repl_field;
276 sixteen_bits section_field;
278 typedef output_state*stack_pointer;
284 #line 159 "ctangle.w"
286 text text_info[max_texts];
287 text_pointer text_info_end= text_info+max_texts-1;
288 text_pointer text_ptr;
289 eight_bits tok_mem[max_toks];
290 eight_bits*tok_mem_end= tok_mem+max_toks-1;
294 #line 227 "ctangle.w"
296 text_pointer last_unnamed;
299 #line 312 "ctangle.w"
301 output_state cur_state;
303 output_state stack[stack_size+1];
304 stack_pointer stack_ptr;
305 stack_pointer stack_end= stack+stack_size;
308 #line 384 "ctangle.w"
313 #line 473 "ctangle.w"
315 eight_bits out_state;
319 #line 502 "ctangle.w"
321 name_pointer output_files[max_files];
322 name_pointer*cur_out_file,*end_output_files,*an_output_file;
323 char cur_section_name_char;
324 char output_file_name[longest_name];
327 #line 599 "ctangle.w"
329 boolean output_defs_seen= 0;
332 #line 710 "ctangle.w"
334 char translit[128][translit_length];
337 #line 789 "ctangle.w"
339 eight_bits ccode[256];
342 #line 845 "ctangle.w"
344 boolean comment_continues= 0;
347 #line 884 "ctangle.w"
349 name_pointer cur_section_name;
353 #line 1195 "ctangle.w"
355 text_pointer cur_text;
356 eight_bits next_control;
359 #line 1350 "ctangle.w"
361 extern sixteen_bits section_count;
371 extern char*strcpy();
372 extern int strncmp();
373 extern char*strncpy();
376 #line 533 "ctangle.w"
381 #line 602 "ctangle.w"
386 #line 648 "ctangle.w"
388 static void out_char();
391 #line 1457 "ctangle.w"
396 #line 1475 "ctangle.w"
414 #line 167 "ctangle.w"
416 text_info->tok_start= tok_ptr= tok_mem;
417 text_ptr= text_info+1;text_ptr->tok_start= tok_mem;
421 #line 177 "ctangle.w"
423 name_dir->equiv= (char*)text_info;
426 #line 230 "ctangle.w"
427 last_unnamed= text_info;text_info->text_link= 0;
430 #line 512 "ctangle.w"
432 cur_out_file= end_output_files= output_files+max_files;
435 #line 713 "ctangle.w"
439 for(i= 0;i<128;i++)sprintf(translit[i],"X%02X",(unsigned)(128+i));
443 #line 792 "ctangle.w"
446 for(c= 0;c<256;c++)ccode[c]= ignore;
447 ccode[' ']= ccode['\t']= ccode['\n']= ccode['\v']= ccode['\r']= ccode['\f']
448 = ccode['*']= new_section;
449 ccode['@']= '@';ccode['=']= string;
450 ccode['d']= ccode['D']= definition;
451 ccode['f']= ccode['F']= ccode['s']= ccode['S']= format_code;
452 ccode['c']= ccode['C']= ccode['p']= ccode['P']= begin_C;
453 ccode['^']= ccode[':']= ccode['.']= ccode['t']= ccode['T']=
454 ccode['q']= ccode['Q']= control_text;
455 ccode['h']= ccode['H']= output_defs_code;
456 ccode['l']= ccode['L']= translit_code;
458 ccode['<']= ccode['(']= section_name;
463 #line 1116 "ctangle.w"
464 section_text[0]= ' ';
470 if(show_banner)printf(banner);
477 #line 183 "ctangle.w"
479 int names_match(p,first,l)
484 if(length(p)!=l)return 0;
485 return!strncmp(first,p->byte_start,l);
489 #line 198 "ctangle.w"
495 node->equiv= (char*)text_info;
501 #line 260 "ctangle.w"
507 if(tok_ptr+2> tok_mem_end)overflow("token");
513 #line 336 "ctangle.w"
519 if(stack_ptr==stack_end)overflow("stack");
520 *stack_ptr= cur_state;
523 cur_name= p;cur_repl= (text_pointer)p->equiv;
524 cur_byte= cur_repl->tok_start;cur_end= (cur_repl+1)->tok_start;
530 #line 355 "ctangle.w"
536 if(flag&&cur_repl->text_link<section_flag){
537 cur_repl= cur_repl->text_link+text_info;
538 cur_byte= cur_repl->tok_start;cur_end= (cur_repl+1)->tok_start;
542 if(stack_ptr> stack)cur_state= *stack_ptr;
546 #line 391 "ctangle.w"
552 restart:if(stack_ptr==stack)return;
553 if(cur_byte==cur_end){
554 cur_val= -((int)cur_section);
556 if(cur_val==0)goto restart;
557 out_char(section_number);return;
560 if(out_state==verbatim&&a!=string&&a!=constant&&a!='\n')
562 else if(a<0200)out_char(a);
564 a= (a-0200)*0400+*cur_byte++;
566 case 0:cur_val= a;out_char(identifier);break;
567 case 1:if(a==output_defs_flag)output_defs();
569 #line 423 "ctangle.w"
573 if((a+name_dir)->equiv!=(char*)text_info)push_level(a+name_dir);
575 printf("\n! Not present: <");
576 print_section_name(a+name_dir);err_print(">");
583 #line 412 "ctangle.w"
586 default:cur_val= a-050000;if(cur_val> 0)cur_section= cur_val;
587 out_char(section_number);
593 #line 481 "ctangle.w"
599 if(cur_line%100==0&&show_progress){
601 if(cur_line%500==0)printf("%d",cur_line);
608 #line 536 "ctangle.w"
615 #line 325 "ctangle.w"
617 stack_ptr= stack+1;cur_name= name_dir;cur_repl= text_info->text_link+text_info;
618 cur_byte= cur_repl->tok_start;cur_end= (cur_repl+1)->tok_start;cur_section= 0;
621 #line 541 "ctangle.w"
624 #line 595 "ctangle.w"
626 if(!output_defs_seen)
630 #line 542 "ctangle.w"
632 if(text_info->text_link==0&&cur_out_file==end_output_files){
633 printf("\n! No program text was specified.");mark_harmless;
637 if(cur_out_file==end_output_files){
639 printf("\nWriting the output file (%s):",C_file_name);
643 printf("\nWriting the output files:");
645 printf(" (%s)",C_file_name);
648 if(text_info->text_link==0)goto writeloop;
650 while(stack_ptr> stack)get_output();
653 #line 572 "ctangle.w"
655 for(an_output_file= end_output_files;an_output_file> cur_out_file;){
657 sprint_section_name(output_file_name,*an_output_file);
659 C_file= fopen(output_file_name,"w");
660 if(C_file==0)fatal("! Cannot open output file:",output_file_name);
662 printf("\n(%s)",output_file_name);update_terminal;
665 cur_name= (*an_output_file);
666 cur_repl= (text_pointer)cur_name->equiv;
667 cur_byte= cur_repl->tok_start;
668 cur_end= (cur_repl+1)->tok_start;
669 while(stack_ptr> stack)get_output();
674 #line 563 "ctangle.w"
676 if(show_happiness)printf("\nDone.");
681 #line 605 "ctangle.w"
688 for(cur_text= text_info+1;cur_text<text_ptr;cur_text++)
689 if(cur_text->text_link==0){
690 cur_byte= cur_text->tok_start;
691 cur_end= (cur_text+1)->tok_start;
692 C_printf("%s","#define ");
695 while(cur_byte<cur_end){
697 if(cur_byte==cur_end&&a=='\n')break;
698 if(out_state==verbatim&&a!=string&&a!=constant&&a!='\n')
701 else if(a<0200)out_char(a);
703 a= (a-0200)*0400+*cur_byte++;
705 cur_val= a;out_char(identifier);
707 else if(a<050000){confusion("macro defs have strange char");}
709 cur_val= a-050000;cur_section= cur_val;out_char(section_number);
721 #line 651 "ctangle.w"
730 case'\n':if(protect&&out_state!=verbatim)C_putc(' ');
731 if(protect||out_state==verbatim)C_putc('\\');
732 flush_buffer();if(out_state!=verbatim)out_state= normal;break;
734 #line 719 "ctangle.w"
737 if(out_state==num_or_id)C_putc(' ');
738 j= (cur_val+name_dir)->byte_start;
739 k= (cur_val+name_dir+1)->byte_start;
741 if((unsigned char)(*j)<0200)C_putc(*j);
743 else C_printf("%s",translit[(unsigned char)(*j)-0200]);
746 out_state= num_or_id;break;
749 #line 662 "ctangle.w"
752 #line 732 "ctangle.w"
755 if(cur_val> 0)C_printf("/*%d:*/",cur_val);
756 else if(cur_val<0)C_printf("/*:%d*/",-cur_val);
765 C_printf("\n#line %d \"",a);
767 cur_val= *cur_byte++;
768 cur_val= 0400*(cur_val-0200)+*cur_byte++;
769 for(j= (cur_val+name_dir)->byte_start,k= (cur_val+name_dir+1)->byte_start;
771 if(*j=='\\'||*j=='"')C_putc('\\');
774 C_printf("%s","\"\n");
779 #line 663 "ctangle.w"
782 #line 681 "ctangle.w"
784 case plus_plus:C_putc('+');C_putc('+');out_state= normal;break;
785 case minus_minus:C_putc('-');C_putc('-');out_state= normal;break;
786 case minus_gt:C_putc('-');C_putc('>');out_state= normal;break;
787 case gt_gt:C_putc('>');C_putc('>');out_state= normal;break;
788 case eq_eq:C_putc('=');C_putc('=');out_state= normal;break;
789 case lt_lt:C_putc('<');C_putc('<');out_state= normal;break;
790 case gt_eq:C_putc('>');C_putc('=');out_state= normal;break;
791 case lt_eq:C_putc('<');C_putc('=');out_state= normal;break;
792 case not_eq:C_putc('!');C_putc('=');out_state= normal;break;
793 case and_and:C_putc('&');C_putc('&');out_state= normal;break;
794 case or_or:C_putc('|');C_putc('|');out_state= normal;break;
795 case dot_dot_dot:C_putc('.');C_putc('.');C_putc('.');out_state= normal;
797 case colon_colon:C_putc(':');C_putc(':');out_state= normal;break;
798 case period_ast:C_putc('.');C_putc('*');out_state= normal;break;
799 case minus_gt_ast:C_putc('-');C_putc('>');C_putc('*');out_state= normal;
803 #line 664 "ctangle.w"
805 case'=':case'>':C_putc(cur_char);C_putc(' ');
806 out_state= normal;break;
807 case join:out_state= unbreakable;break;
808 case constant:if(out_state==verbatim){
809 out_state= num_or_id;break;
811 if(out_state==num_or_id)C_putc(' ');out_state= verbatim;break;
812 case string:if(out_state==verbatim)out_state= normal;
813 else out_state= verbatim;break;
814 case'/':C_putc('/');out_state= post_slash;break;
815 case'*':if(out_state==post_slash)C_putc(' ');
817 default:C_putc(cur_char);out_state= normal;break;
822 #line 813 "ctangle.w"
829 if(loc> limit&&(get_line()==0))return(new_section);
831 while(*loc!='@')loc++;
833 loc++;c= ccode[(eight_bits)*loc];loc++;
834 if(c!=ignore||*(loc-1)=='>')return(c);
840 #line 848 "ctangle.w"
842 int skip_comment(is_long_comment)
843 boolean is_long_comment;
849 if(get_line())return(comment_continues= 1);
851 err_print("! Input ended in mid-comment");
853 return(comment_continues= 0);
856 else return(comment_continues= 0);
859 if(is_long_comment&&c=='*'&&*loc=='/'){
860 loc++;return(comment_continues= 0);
863 if(ccode[(eight_bits)*loc]==new_section){
864 err_print("! Section name ended in mid-comment");loc--;
866 return(comment_continues= 0);
874 #line 900 "ctangle.w"
879 static int preprocessing= 0;
883 if(preprocessing&&*(limit-1)!='\\')preprocessing= 0;
884 if(get_line()==0)return(new_section);
885 else if(print_where&&!no_where){
888 #line 1225 "ctangle.w"
890 store_two_bytes(0150000);
891 if(changing)id_first= change_file_name;
892 else id_first= cur_file_name;
893 id_loc= id_first+strlen(id_first);
894 if(changing)store_two_bytes((sixteen_bits)change_line);
895 else store_two_bytes((sixteen_bits)cur_line);
896 {int a= id_lookup(id_first,id_loc,0)-name_dir;app_repl((a/0400)+0200);
900 #line 912 "ctangle.w"
906 if(comment_continues||(c=='/'&&(*(loc+1)=='*'||*(loc+1)=='/'))){
907 skip_comment(comment_continues||*(loc+1)=='*');
909 if(comment_continues)return('\n');
913 if(xisdigit(c)||c=='.')/*66:*/
914 #line 978 "ctangle.w"
917 if(*id_first=='.'&&!xisdigit(*loc))goto mistake;
919 if(*loc=='x'||*loc=='X'){
920 loc++;while(xisxdigit(*loc))loc++;goto found;
923 while(xisdigit(*loc))loc++;
926 while(xisdigit(*loc))loc++;
928 if(*loc=='e'||*loc=='E'){
929 if(*++loc=='+'||*loc=='-')loc++;
930 while(xisdigit(*loc))loc++;
932 found:while(*loc=='u'||*loc=='U'||*loc=='l'||*loc=='L'
933 ||*loc=='f'||*loc=='F')loc++;
939 #line 924 "ctangle.w"
941 else if(c=='\''||c=='"'||(c=='L'&&(*loc=='\''||*loc=='"')))
943 #line 1006 "ctangle.w"
946 id_first= section_text+1;
947 id_loc= section_text;*++id_loc= delim;
949 delim= *loc++;*++id_loc= delim;
953 if(*(limit-1)!='\\'){
954 err_print("! String didn't end");loc= limit;break;
958 err_print("! Input ended in middle of string");loc= buffer;break;
961 else if(++id_loc<=section_text_end)*id_loc= '\n';
964 if((c= *loc++)==delim){
965 if(++id_loc<=section_text_end)*id_loc= c;
969 if(loc>=limit)continue;
970 if(++id_loc<=section_text_end)*id_loc= '\\';
973 if(++id_loc<=section_text_end)*id_loc= c;
975 if(id_loc>=section_text_end){
976 printf("\n! String too long: ");
978 term_write(section_text+1,25);
986 #line 926 "ctangle.w"
988 else if(isalpha(c)||isxalpha(c)||ishigh(c))
990 #line 972 "ctangle.w"
993 while(isalpha(*++loc)||isdigit(*loc)||isxalpha(*loc)||ishigh(*loc));
994 id_loc= loc;return(identifier);
998 #line 928 "ctangle.w"
1000 else if(c=='@')/*68:*/
1001 #line 1050 "ctangle.w"
1003 c= ccode[(eight_bits)*loc++];
1005 case ignore:continue;
1006 case translit_code:err_print("! Use @l in limbo only");continue;
1008 case control_text:while((c= skip_ahead())=='@');
1011 err_print("! Double @ should be used in control text");
1015 cur_section_name_char= *(loc-1);
1017 #line 1098 "ctangle.w"
1021 #line 1118 "ctangle.w"
1025 if(loc> limit&&get_line()==0){
1026 err_print("! Input ended in section name");
1028 loc= buffer+1;break;
1032 #line 1142 "ctangle.w"
1039 if(ccode[(eight_bits)c]==new_section){
1040 err_print("! Section name didn't end");break;
1043 if(ccode[(eight_bits)c]==section_name){
1044 err_print("! Nesting of section names not allowed");break;
1051 #line 1127 "ctangle.w"
1053 loc++;if(k<section_text_end)k++;
1055 c= ' ';if(*(k-1)==' ')k--;
1059 if(k>=section_text_end){
1060 printf("\n! Section name too long: ");
1062 term_write(section_text+1,25);
1063 printf("...");mark_harmless;
1065 if(*k==' '&&k> section_text)k--;
1068 #line 1100 "ctangle.w"
1070 if(k-section_text> 3&&strncmp(k-2,"...",3)==0)
1071 cur_section_name= section_lookup(section_text+1,k-3,1);
1072 else cur_section_name= section_lookup(section_text+1,k,0);
1073 if(cur_section_name_char=='(')
1075 #line 516 "ctangle.w"
1078 for(an_output_file= cur_out_file;
1079 an_output_file<end_output_files;an_output_file++)
1080 if(*an_output_file==cur_section_name)break;
1081 if(an_output_file==end_output_files){
1082 if(cur_out_file> output_files)
1083 *--cur_out_file= cur_section_name;
1085 overflow("output files");
1091 #line 1106 "ctangle.w"
1093 return(section_name);
1097 #line 1064 "ctangle.w"
1100 #line 1164 "ctangle.w"
1102 id_first= loc++;*(limit+1)= '@';*(limit+2)= '>';
1103 while(*loc!='@'||*(loc+1)!='>')loc++;
1104 if(loc>=limit)err_print("! Verbatim string didn't end");
1106 id_loc= loc;loc+= 2;
1111 #line 1065 "ctangle.w"
1114 #line 1077 "ctangle.w"
1118 if(*++loc=='\'')loc++;
1123 err_print("! Double @ should be used in ASCII constant");
1129 err_print("! String didn't end");loc= limit-1;break;
1137 #line 1066 "ctangle.w"
1144 #line 929 "ctangle.w"
1146 else if(xisspace(c)){
1147 if(!preprocessing||loc> limit)continue;
1151 else if(c=='#'&&loc==buffer+1)preprocessing= 1;
1153 #line 950 "ctangle.w"
1156 case'+':if(*loc=='+')compress(plus_plus);break;
1157 case'-':if(*loc=='-'){compress(minus_minus);}
1158 else if(*loc=='>')if(*(loc+1)=='*'){loc++;compress(minus_gt_ast);}
1159 else compress(minus_gt);break;
1160 case'.':if(*loc=='*'){compress(period_ast);}
1161 else if(*loc=='.'&&*(loc+1)=='.'){
1162 loc++;compress(dot_dot_dot);
1165 case':':if(*loc==':')compress(colon_colon);break;
1166 case'=':if(*loc=='=')compress(eq_eq);break;
1167 case'>':if(*loc=='='){compress(gt_eq);}
1168 else if(*loc=='>')compress(gt_gt);break;
1169 case'<':if(*loc=='='){compress(lt_eq);}
1170 else if(*loc=='<')compress(lt_lt);break;
1171 case'&':if(*loc=='&')compress(and_and);break;
1172 case'|':if(*loc=='|')compress(or_or);break;
1173 case'!':if(*loc=='=')compress(not_eq);break;
1177 #line 936 "ctangle.w"
1184 #line 1199 "ctangle.w"
1191 if(t==section_name){/*77:*/
1192 #line 1225 "ctangle.w"
1194 store_two_bytes(0150000);
1195 if(changing)id_first= change_file_name;
1196 else id_first= cur_file_name;
1197 id_loc= id_first+strlen(id_first);
1198 if(changing)store_two_bytes((sixteen_bits)change_line);
1199 else store_two_bytes((sixteen_bits)cur_line);
1200 {int a= id_lookup(id_first,id_loc,0)-name_dir;app_repl((a/0400)+0200);
1204 #line 1205 "ctangle.w"
1206 while(1)switch(a= get_next()){
1208 #line 1235 "ctangle.w"
1210 case identifier:a= id_lookup(id_first,id_loc,0)-name_dir;
1211 app_repl((a/0400)+0200);
1212 app_repl(a%0400);break;
1213 case section_name:if(t!=section_name)goto done;
1216 #line 1268 "ctangle.w"
1219 while(*try_loc==' '&&try_loc<limit)try_loc++;
1220 if(*try_loc=='+'&&try_loc<limit)try_loc++;
1221 while(*try_loc==' '&&try_loc<limit)try_loc++;
1222 if(*try_loc=='=')err_print("! Missing `@ ' before a named section");
1229 #line 1241 "ctangle.w"
1231 a= cur_section_name-name_dir;
1232 app_repl((a/0400)+0250);
1235 #line 1225 "ctangle.w"
1237 store_two_bytes(0150000);
1238 if(changing)id_first= change_file_name;
1239 else id_first= cur_file_name;
1240 id_loc= id_first+strlen(id_first);
1241 if(changing)store_two_bytes((sixteen_bits)change_line);
1242 else store_two_bytes((sixteen_bits)cur_line);
1243 {int a= id_lookup(id_first,id_loc,0)-name_dir;app_repl((a/0400)+0200);
1247 #line 1245 "ctangle.w"
1250 case output_defs_code:if(t!=section_name)err_print("! Misplaced @h");
1253 output_defs_seen= 1;
1254 a= output_defs_flag;
1255 app_repl((a/0400)+0200);
1258 #line 1225 "ctangle.w"
1260 store_two_bytes(0150000);
1261 if(changing)id_first= change_file_name;
1262 else id_first= cur_file_name;
1263 id_loc= id_first+strlen(id_first);
1264 if(changing)store_two_bytes((sixteen_bits)change_line);
1265 else store_two_bytes((sixteen_bits)cur_line);
1266 {int a= id_lookup(id_first,id_loc,0)-name_dir;app_repl((a/0400)+0200);
1270 #line 1254 "ctangle.w"
1274 case constant:case string:
1276 #line 1279 "ctangle.w"
1279 while(id_first<id_loc){
1281 if(*(id_first+1)=='@')id_first++;
1282 else err_print("! Double @ should be used in string");
1285 app_repl(*id_first++);
1290 #line 1258 "ctangle.w"
1294 #line 1295 "ctangle.w"
1296 int c= (eight_bits)*id_first;
1301 if(*(id_first+1)>='0'&&*(id_first+1)<='7'){
1302 c= 8*c+*(++id_first)-'0';
1303 if(*(id_first+1)>='0'&&*(id_first+1)<='7'&&c<32)
1304 c= 8*c+*(++id_first)-'0';
1308 case't':c= '\t';break;
1309 case'n':c= '\n';break;
1310 case'b':c= '\b';break;
1311 case'f':c= '\f';break;
1312 case'v':c= '\v';break;
1313 case'r':c= '\r';break;
1314 case'a':c= '\7';break;
1315 case'?':c= '?';break;
1317 if(xisdigit(*(id_first+1)))c= *(++id_first)-'0';
1318 else if(xisxdigit(*(id_first+1))){
1320 c= toupper(*id_first)-'A'+10;
1322 if(xisdigit(*(id_first+1)))c= 16*c+*(++id_first)-'0';
1323 else if(xisxdigit(*(id_first+1))){
1325 c= 16*c+toupper(*id_first)-'A'+10;
1328 case'\\':c= '\\';break;
1329 case'\'':c= '\'';break;
1330 case'\"':c= '\"';break;
1331 default:err_print("! Unrecognized escape sequence");
1337 if(c>=100)app_repl('0'+c/100);
1338 if(c>=10)app_repl('0'+(c/10)%10);
1345 #line 1260 "ctangle.w"
1347 case definition:case format_code:case begin_C:if(t!=section_name)goto done;
1349 err_print("! @d, @f and @c are ignored in C text");continue;
1352 case new_section:goto done;
1355 #line 1210 "ctangle.w"
1357 case')':app_repl(a);
1358 if(t==macro)app_repl(' ');
1360 default:app_repl(a);
1362 done:next_control= (eight_bits)a;
1363 if(text_ptr> text_info_end)overflow("text");
1364 cur_text= text_ptr;(++text_ptr)->tok_start= tok_ptr;
1368 #line 1357 "ctangle.w"
1376 section_count++;no_where= 1;
1377 if(*(loc-1)=='*'&&show_progress){
1378 printf("*%d",section_count);update_terminal;
1383 #line 1396 "ctangle.w"
1385 while(next_control<definition)
1387 if((next_control= skip_ahead())==section_name){
1388 loc-= 2;next_control= get_next();
1392 #line 1371 "ctangle.w"
1394 if(next_control==definition){
1396 #line 1403 "ctangle.w"
1398 while((next_control= get_next())=='\n');
1399 if(next_control!=identifier){
1400 err_print("! Definition flushed, must start with identifier");
1404 app_repl(((a= id_lookup(id_first,id_loc,0)-name_dir)/0400)+0200);
1408 app_repl(string);app_repl(' ');app_repl(string);
1411 cur_text->text_link= 0;
1415 #line 1373 "ctangle.w"
1419 if(next_control==begin_C){
1422 if(next_control==section_name){
1423 p= cur_section_name;
1425 #line 1428 "ctangle.w"
1427 while((next_control= get_next())=='+');
1428 if(next_control!='='&&next_control!=eq_eq)
1432 #line 1381 "ctangle.w"
1438 no_where= print_where= 0;
1440 #line 1433 "ctangle.w"
1443 #line 1438 "ctangle.w"
1445 store_two_bytes((sixteen_bits)(0150000+section_count));
1449 #line 1434 "ctangle.w"
1451 scan_repl(section_name);
1453 #line 1442 "ctangle.w"
1455 if(p==name_dir||p==0){
1456 (last_unnamed)->text_link= cur_text-text_info;last_unnamed= cur_text;
1458 else if(p->equiv==(char*)text_info)p->equiv= (char*)cur_text;
1461 q= (text_pointer)p->equiv;
1462 while(q->text_link<section_flag)
1463 q= q->text_link+text_info;
1464 q->text_link= cur_text-text_info;
1466 cur_text->text_link= section_flag;
1470 #line 1436 "ctangle.w"
1474 #line 1387 "ctangle.w"
1479 #line 1460 "ctangle.w"
1487 while(!input_has_ended)scan_section();
1493 #line 1478 "ctangle.w"
1500 if(loc> limit&&get_line()==0)return;
1502 while(*loc!='@')loc++;
1505 if(ccode[(eight_bits)c]==new_section)break;
1506 switch(ccode[(eight_bits)c]){
1507 case translit_code:/*94:*/
1508 #line 1507 "ctangle.w"
1510 while(xisspace(*loc)&&loc<limit)loc++;
1512 if(loc> limit||!xisxdigit(*(loc-3))||!xisxdigit(*(loc-2))
1513 ||(*(loc-3)>='0'&&*(loc-3)<='7')||!xisspace(*(loc-1)))
1514 err_print("! Improper hex number following @l");
1519 sscanf(loc-3,"%x",&i);
1520 while(xisspace(*loc)&&loc<limit)loc++;
1522 while(loc<limit&&(xisalpha(*loc)||xisdigit(*loc)||*loc=='_'))loc++;
1523 if(loc-beg>=translit_length)
1524 err_print("! Replacement string in @l too long");
1527 strncpy(translit[i-0200],beg,loc-beg);
1528 translit[i-0200][loc-beg]= '\0';
1533 #line 1491 "ctangle.w"
1535 case format_code:case'@':break;
1536 case control_text:if(c=='q'||c=='Q'){
1537 while((c= skip_ahead())=='@');
1539 err_print("! Double @ should be used in control text");
1543 default:err_print("! Double @ should be used in limbo");
1551 #line 1533 "ctangle.w"
1555 printf("\nMemory usage statistics:\n");
1556 printf("%ld names (out of %ld)\n",
1557 (long)(name_ptr-name_dir),(long)max_names);
1558 printf("%ld replacement texts (out of %ld)\n",
1559 (long)(text_ptr-text_info),(long)max_texts);
1560 printf("%ld bytes (out of %ld)\n",
1561 (long)(byte_ptr-byte_mem),(long)max_bytes);
1562 printf("%ld tokens (out of %ld)\n",
1563 (long)(tok_ptr-tok_mem),(long)max_toks);