towards TL2010: texk/web2c

git-svn-id: svn://tug.org/texlive/trunk@15964 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 1316 insertions, 0 deletions

diff --git a/Build/source/texk/web2c/cwebboot.cin b/Build/source/texk/web2c/cwebboot.cin
new file mode 100644
index 00000000000..81dc2c18fde
--- /dev/null
+++ b/Build/source/texk/web2c/cwebboot.cin
@@ -0,0 +1,1316 @@
+/*1:*/
+#line 58 "cwebdir/common.w"
+
+/*5:*/
+#line 102 "cwebdir/common.w"
+
+#include <ctype.h> 
+
+/*:5*//*8:*/
+#line 165 "cwebdir/common.w"
+
+#include <stdio.h> 
+
+/*:8*//*22:*/
+#line 471 "cwebdir/common.w"
+
+#line 163 "cwebdir/comm-w2c.ch"
+#include <stdlib.h>  
+#define CWEB
+#include "cpascal.h"
+#include <kpathsea/kpathsea.h>  
+#include "help.h"
+
+/*:22*/
+#line 59 "cwebdir/common.w"
+
+#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 buf_size 1000
+#define longest_name 1000
+#define long_buf_size (buf_size+longest_name) 
+#define xisspace(c) (isspace(c) &&((unsigned char) c<0200) ) 
+#define xisupper(c) (isupper(c) &&((unsigned char) c<0200) )  \
+
+#define max_include_depth 10 \
+
+#define max_file_name_length 1024
+#define cur_file file[include_depth]
+#define cur_file_name file_name[include_depth]
+#define cur_line line[include_depth]
+#define web_file file[0]
+#define web_file_name file_name[0] \
+
+#define lines_dont_match (change_limit-change_buffer!=limit-buffer|| \
+strncmp(buffer,change_buffer,limit-buffer) )  \
+
+#define if_section_start_make_pending(b) {*limit= '!'; \
+for(loc= buffer;xisspace(*loc) ;loc++) ; \
+*limit= ' '; \
+if(*loc=='@'&&(xisspace(*(loc+1) ) ||*(loc+1) =='*') ) change_pending= b; \
+} \
+
+#define max_sections 10239 \
+ \
+
+#define too_long() {include_depth--; \
+err_print("! Include file name too long") ;goto restart;} \
+
+#define kpse_find_cweb(name) kpse_find_file(name,kpse_cweb_format,true)  \
+
+#define max_bytes 1000000 \
+
+#define max_names 10239 \
+ \
+
+#define length(c) (c+1) ->byte_start-(c) ->byte_start
+#define print_id(c) term_write((c) ->byte_start,length((c) ) )  \
+
+#define hash_size 8501 \
+
+#define llink link
+#define rlink dummy.Rlink
+#define root name_dir->rlink \
+ \
+
+#define first_chunk(p) ((p) ->byte_start+2) 
+#define prefix_length(p) (int) ((unsigned char) *((p) ->byte_start) *256+ \
+(unsigned char) *((p) ->byte_start+1) ) 
+#define set_prefix_length(p,m) (*((p) ->byte_start) = (m) /256, \
+*((p) ->byte_start+1) = (m) %256)  \
+
+#define less 0
+#define equal 1
+#define greater 2
+#define prefix 3
+#define extension 4 \
+
+#define bad_extension 5 \
+
+#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 show_banner flags['b']
+#define show_progress flags['p']
+#define show_stats flags['s']
+#define show_happiness flags['h']
+#define show_kpathsea_debug flags['d'] \
+ \
+
+#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 ctangle_banner "This is CTANGLE, Version 3.64"
+#define cweave_banner "This is CWEAVE, Version 3.64" \
+
+
+#line 60 "cwebdir/common.w"
+
+/*2:*/
+#line 73 "cwebdir/common.w"
+
+#line 75 "cwebdir/common.w"
+boolean program;
+
+/*:2*//*7:*/
+#line 159 "cwebdir/common.w"
+
+char buffer[long_buf_size];
+char*buffer_end= buffer+buf_size-2;
+char*limit= buffer;
+char*loc= buffer;
+
+/*:7*//*10:*/
+#line 214 "cwebdir/common.w"
+
+int include_depth;
+FILE*file[max_include_depth];
+FILE*change_file;
+char file_name[max_include_depth][max_file_name_length];
+
+char change_file_name[max_file_name_length];
+#line 222 "cwebdir/common.w"
+int line[max_include_depth];
+int change_line;
+int change_depth;
+boolean input_has_ended;
+boolean changing;
+boolean web_file_open= 0;
+
+/*:10*//*20:*/
+#line 418 "cwebdir/common.w"
+
+typedef unsigned short sixteen_bits;
+sixteen_bits section_count;
+boolean changed_section[max_sections];
+boolean change_pending;
+
+boolean print_where= 0;
+
+/*:20*//*29:*/
+#line 594 "cwebdir/common.w"
+
+typedef struct name_info{
+char*byte_start;
+/*33:*/
+#line 631 "cwebdir/common.w"
+
+struct name_info*link;
+
+/*:33*//*42:*/
+#line 730 "cwebdir/common.w"
+
+union{
+struct name_info*Rlink;
+
+char Ilk;
+}dummy;
+
+/*:42*//*57:*/
+#line 1062 "cwebdir/common.w"
+
+char*equiv_or_xref;
+
+/*:57*/
+#line 597 "cwebdir/common.w"
+
+}name_info;
+typedef name_info*name_pointer;
+char byte_mem[max_bytes];
+char*byte_mem_end= byte_mem+max_bytes-1;
+name_info name_dir[max_names];
+name_pointer name_dir_end= name_dir+max_names-1;
+
+/*:29*//*31:*/
+#line 617 "cwebdir/common.w"
+
+name_pointer name_ptr;
+char*byte_ptr;
+
+/*:31*//*34:*/
+#line 644 "cwebdir/common.w"
+
+typedef name_pointer*hash_pointer;
+name_pointer hash[hash_size];
+hash_pointer hash_end= hash+hash_size-1;
+hash_pointer h;
+
+#line 273 "cwebdir/comm-w2c.ch"
+/*:34*//*58:*/
+#line 1082 "cwebdir/common.w"
+
+int history= spotless;
+
+/*:58*//*69:*/
+#line 1220 "cwebdir/common.w"
+
+int argc;
+char**argv;
+char C_file_name[max_file_name_length];
+char tex_file_name[max_file_name_length];
+char idx_file_name[max_file_name_length];
+char scn_file_name[max_file_name_length];
+boolean flags[128];
+
+/*:69*//*79:*/
+#line 1370 "cwebdir/common.w"
+
+FILE*C_file;
+FILE*tex_file;
+FILE*idx_file;
+FILE*scn_file;
+#line 659 "cwebdir/comm-w2c.ch"
+FILE*active_file;
+char*found_filename;
+#line 1376 "cwebdir/common.w"
+
+/*:79*/
+#line 61 "cwebdir/common.w"
+
+/*3:*/
+#line 83 "cwebdir/common.w"
+int phase;
+
+/*:3*//*11:*/
+#line 240 "cwebdir/common.w"
+
+char change_buffer[buf_size];
+char*change_limit;
+
+/*:11*/
+#line 62 "cwebdir/common.w"
+
+#line 38 "cwebdir/comm-w2c.ch"
+#include "cwebboot.h"
+/*55:*/
+#line 1017 "cwebdir/common.w"
+
+#line 447 "cwebdir/comm-w2c.ch"
+static int section_name_cmp(char**,int,name_pointer);
+#line 1019 "cwebdir/common.w"
+
+/*:55*//*71:*/
+#line 1251 "cwebdir/common.w"
+
+#line 576 "cwebdir/comm-w2c.ch"
+static void scan_args(void);
+#line 1253 "cwebdir/common.w"
+
+/*:71*/
+#line 39 "cwebdir/comm-w2c.ch"
+
+#line 64 "cwebdir/common.w"
+
+/*:1*//*4:*/
+#line 89 "cwebdir/common.w"
+
+void
+#line 59 "cwebdir/comm-w2c.ch"
+ common_init(void)
+#line 92 "cwebdir/common.w"
+{
+#line 65 "cwebdir/comm-w2c.ch"
+/*32:*/
+#line 621 "cwebdir/common.w"
+
+name_dir->byte_start= byte_ptr= byte_mem;
+name_ptr= name_dir+1;
+name_ptr->byte_start= byte_mem;
+
+/*:32*//*36:*/
+#line 655 "cwebdir/common.w"
+
+for(h= hash;h<=hash_end;*h++= NULL);
+
+/*:36*//*43:*/
+#line 737 "cwebdir/common.w"
+
+root= NULL;
+
+/*:43*/
+#line 65 "cwebdir/comm-w2c.ch"
+;
+/*24:*/
+#line 200 "cwebdir/comm-w2c.ch"
+
+kpse_set_program_name(argv[0],"cweb");
+#line 473 "cwebdir/common.w"
+
+/*:24*/
+#line 66 "cwebdir/comm-w2c.ch"
+;
+#line 94 "cwebdir/common.w"
+/*70:*/
+#line 1233 "cwebdir/common.w"
+
+#line 568 "cwebdir/comm-w2c.ch"
+show_banner= show_happiness= show_progress= 1;
+#line 1235 "cwebdir/common.w"
+
+/*:70*/
+#line 94 "cwebdir/common.w"
+;
+/*80:*/
+#line 1377 "cwebdir/common.w"
+
+scan_args();
+if(program==ctangle){
+if((C_file= fopen(C_file_name,"w"))==NULL)
+fatal("! Cannot open output file ",C_file_name);
+
+}
+else{
+if((tex_file= fopen(tex_file_name,"w"))==NULL)
+fatal("! Cannot open output file ",tex_file_name);
+}
+
+/*:80*/
+#line 95 "cwebdir/common.w"
+;
+}
+
+/*:4*//*9:*/
+#line 172 "cwebdir/common.w"
+
+#line 75 "cwebdir/comm-w2c.ch"
+int input_ln(FILE*fp)
+#line 175 "cwebdir/common.w"
+{
+register int c= EOF;
+register char*k;
+if(feof(fp))return(0);
+limit= k= buffer;
+while(k<=buffer_end&&(c= getc(fp))!=EOF&&c!='\n')
+if((*(k++)= c)!=' ')limit= k;
+if(k> buffer_end)
+if((c= getc(fp))!=EOF&&c!='\n'){
+ungetc(c,fp);loc= buffer;err_print("! Input line too long");
+
+}
+if(c==EOF&&limit==buffer)return(0);
+
+return(1);
+}
+
+/*:9*//*12:*/
+#line 251 "cwebdir/common.w"
+
+#line 97 "cwebdir/comm-w2c.ch"
+static void
+prime_the_change_buffer(void)
+#line 254 "cwebdir/common.w"
+{
+change_limit= change_buffer;
+/*13:*/
+#line 265 "cwebdir/common.w"
+
+while(1){
+change_line++;
+if(!input_ln(change_file))return;
+if(limit<buffer+2)continue;
+if(buffer[0]!='@')continue;
+if(xisupper(buffer[1]))buffer[1]= tolower(buffer[1]);
+if(buffer[1]=='x')break;
+if(buffer[1]=='y'||buffer[1]=='z'||buffer[1]=='i'){
+loc= buffer+2;
+err_print("! Missing @x in change file");
+
+}
+}
+
+/*:13*/
+#line 256 "cwebdir/common.w"
+;
+/*14:*/
+#line 282 "cwebdir/common.w"
+
+do{
+change_line++;
+if(!input_ln(change_file)){
+err_print("! Change file ended after @x");
+
+return;
+}
+}while(limit==buffer);
+
+/*:14*/
+#line 257 "cwebdir/common.w"
+;
+/*15:*/
+#line 292 "cwebdir/common.w"
+
+{
+change_limit= change_buffer+(limit-buffer);
+strncpy(change_buffer,buffer,limit-buffer+1);
+}
+
+/*:15*/
+#line 258 "cwebdir/common.w"
+;
+}
+
+/*:12*//*16:*/
+#line 320 "cwebdir/common.w"
+
+#line 107 "cwebdir/comm-w2c.ch"
+static void
+check_change(void)
+#line 323 "cwebdir/common.w"
+{
+int n= 0;
+if(lines_dont_match)return;
+change_pending= 0;
+if(!changed_section[section_count]){
+if_section_start_make_pending(1);
+if(!change_pending)changed_section[section_count]= 1;
+}
+while(1){
+changing= 1;print_where= 1;change_line++;
+if(!input_ln(change_file)){
+err_print("! Change file ended before @y");
+
+change_limit= change_buffer;changing= 0;
+return;
+}
+if(limit> buffer+1&&buffer[0]=='@'){
+char xyz_code= xisupper(buffer[1])?tolower(buffer[1]):buffer[1];
+/*17:*/
+#line 358 "cwebdir/common.w"
+
+if(xyz_code=='x'||xyz_code=='z'){
+loc= buffer+2;err_print("! Where is the matching @y?");
+
+}
+else if(xyz_code=='y'){
+if(n> 0){
+loc= buffer+2;
+printf("\n! Hmm... %d ",n);
+err_print("of the preceding lines failed to match");
+
+}
+change_depth= include_depth;
+return;
+}
+
+/*:17*/
+#line 342 "cwebdir/common.w"
+;
+}
+/*15:*/
+#line 292 "cwebdir/common.w"
+
+{
+change_limit= change_buffer+(limit-buffer);
+strncpy(change_buffer,buffer,limit-buffer+1);
+}
+
+/*:15*/
+#line 344 "cwebdir/common.w"
+;
+changing= 0;cur_line++;
+while(!input_ln(cur_file)){
+if(include_depth==0){
+err_print("! CWEB file ended during a change");
+
+input_has_ended= 1;return;
+}
+include_depth--;cur_line++;
+}
+if(lines_dont_match)n++;
+}
+}
+
+/*:16*//*18:*/
+#line 378 "cwebdir/common.w"
+
+void
+#line 116 "cwebdir/comm-w2c.ch"
+ reset_input(void)
+#line 381 "cwebdir/common.w"
+{
+limit= buffer;loc= buffer+1;buffer[0]= ' ';
+/*19:*/
+#line 393 "cwebdir/common.w"
+
+#line 128 "cwebdir/comm-w2c.ch"
+if((found_filename= kpse_find_cweb(web_file_name))==NULL||
+(web_file= fopen(found_filename,"r"))==NULL){
+fatal("! Cannot open input file ",web_file_name);
+}else if(strlen(found_filename)<max_file_name_length){
+strcpy(web_file_name,found_filename);
+free(found_filename);
+}
+#line 399 "cwebdir/common.w"
+
+
+web_file_open= 1;
+#line 141 "cwebdir/comm-w2c.ch"
+if((found_filename= kpse_find_cweb(change_file_name))==NULL||
+(change_file= fopen(found_filename,"r"))==NULL){
+fatal("! Cannot open change file ",change_file_name);
+}else if(strlen(found_filename)<max_file_name_length){
+strcpy(change_file_name,found_filename);
+free(found_filename);
+}
+#line 404 "cwebdir/common.w"
+
+/*:19*/
+#line 383 "cwebdir/common.w"
+;
+include_depth= 0;cur_line= 0;change_line= 0;
+change_depth= include_depth;
+changing= 1;prime_the_change_buffer();changing= !changing;
+limit= buffer;loc= buffer+1;buffer[0]= ' ';input_has_ended= 0;
+}
+
+/*:18*//*21:*/
+#line 426 "cwebdir/common.w"
+
+#line 155 "cwebdir/comm-w2c.ch"
+int get_line(void)
+#line 428 "cwebdir/common.w"
+{
+restart:
+if(changing&&include_depth==change_depth)
+/*27:*/
+#line 537 "cwebdir/common.w"
+{
+change_line++;
+if(!input_ln(change_file)){
+err_print("! Change file ended without @z");
+
+buffer[0]= '@';buffer[1]= 'z';limit= buffer+2;
+}
+if(limit> buffer){
+if(change_pending){
+if_section_start_make_pending(0);
+if(change_pending){
+changed_section[section_count]= 1;change_pending= 0;
+}
+}
+*limit= ' ';
+if(buffer[0]=='@'){
+if(xisupper(buffer[1]))buffer[1]= tolower(buffer[1]);
+if(buffer[1]=='x'||buffer[1]=='y'){
+loc= buffer+2;
+err_print("! Where is the matching @z?");
+
+}
+else if(buffer[1]=='z'){
+prime_the_change_buffer();changing= !changing;print_where= 1;
+}
+}
+}
+}
+
+/*:27*/
+#line 431 "cwebdir/common.w"
+;
+if(!changing||include_depth> change_depth){
+/*26:*/
+#line 520 "cwebdir/common.w"
+{
+cur_line++;
+while(!input_ln(cur_file)){
+print_where= 1;
+if(include_depth==0){input_has_ended= 1;break;}
+else{
+fclose(cur_file);include_depth--;
+if(changing&&include_depth==change_depth)break;
+cur_line++;
+}
+}
+if(!changing&&!input_has_ended)
+if(limit-buffer==change_limit-change_buffer)
+if(buffer[0]==change_buffer[0])
+if(change_limit> change_buffer)check_change();
+}
+
+/*:26*/
+#line 433 "cwebdir/common.w"
+;
+if(changing&&include_depth==change_depth)goto restart;
+}
+if(input_has_ended)return 0;
+loc= buffer;*limit= ' ';
+if(buffer[0]=='@'&&(buffer[1]=='i'||buffer[1]=='I')){
+loc= buffer+2;*limit= '"';
+while(*loc==' '||*loc=='\t')loc++;
+if(loc>=limit){
+err_print("! Include file name not given");
+
+goto restart;
+}
+if(include_depth>=max_include_depth-1){
+err_print("! Too many nested includes");
+
+goto restart;
+}
+include_depth++;
+/*25:*/
+#line 474 "cwebdir/common.w"
+{
+#line 213 "cwebdir/comm-w2c.ch"
+char*cur_file_name_end= cur_file_name+max_file_name_length-1;
+char*k= cur_file_name;
+#line 479 "cwebdir/common.w"
+
+if(*loc=='"'){
+loc++;
+while(*loc!='"'&&k<=cur_file_name_end)*k++= *loc++;
+if(loc==limit)k= cur_file_name_end+1;
+}else
+while(*loc!=' '&&*loc!='\t'&&*loc!='"'&&k<=cur_file_name_end)*k++= *loc++;
+if(k> cur_file_name_end)too_long();
+
+*k= '\0';
+#line 220 "cwebdir/comm-w2c.ch"
+if((found_filename= kpse_find_cweb(cur_file_name))!=NULL&&
+(cur_file= fopen(found_filename,"r"))!=NULL){
+
+if(strlen(found_filename)<max_file_name_length){
+strcpy(cur_file_name,found_filename);
+free(found_filename);
+}
+#line 490 "cwebdir/common.w"
+cur_line= 0;print_where= 1;
+goto restart;
+}
+#line 517 "cwebdir/common.w"
+include_depth--;err_print("! Cannot open include file");goto restart;
+}
+
+/*:25*/
+#line 452 "cwebdir/common.w"
+;
+}
+return 1;
+}
+
+/*:21*//*28:*/
+#line 569 "cwebdir/common.w"
+
+void
+#line 264 "cwebdir/comm-w2c.ch"
+ check_complete(void){
+#line 572 "cwebdir/common.w"
+if(change_limit!=change_buffer){
+strncpy(buffer,change_buffer,change_limit-change_buffer+1);
+limit= buffer+(int)(change_limit-change_buffer);
+changing= 1;change_depth= include_depth;loc= buffer;
+err_print("! Change file entry did not match");
+
+}
+}
+
+/*:28*//*37:*/
+#line 660 "cwebdir/common.w"
+
+name_pointer
+#line 285 "cwebdir/comm-w2c.ch"
+
+id_lookup(const char*first,const char*last,char t)
+#line 666 "cwebdir/common.w"
+{
+#line 292 "cwebdir/comm-w2c.ch"
+const char*i= first;
+#line 298 "cwebdir/comm-w2c.ch"
+int h;
+#line 669 "cwebdir/common.w"
+int l;
+name_pointer p;
+if(last==NULL)for(last= first;*last!='\0';last++);
+l= last-first;
+/*38:*/
+#line 683 "cwebdir/common.w"
+
+#line 307 "cwebdir/comm-w2c.ch"
+h= (unsigned char)*i;
+while(++i<last)h= (h+h+(int)((unsigned char)*i))%hash_size;
+#line 686 "cwebdir/common.w"
+
+
+/*:38*/
+#line 673 "cwebdir/common.w"
+;
+/*39:*/
+#line 691 "cwebdir/common.w"
+
+#line 316 "cwebdir/comm-w2c.ch"
+p= hash[h];
+#line 693 "cwebdir/common.w"
+while(p&&!names_match(p,first,l,t))p= p->link;
+if(p==NULL){
+p= name_ptr;
+#line 322 "cwebdir/comm-w2c.ch"
+p->link= hash[h];hash[h]= p;
+#line 697 "cwebdir/common.w"
+}
+
+/*:39*/
+#line 674 "cwebdir/common.w"
+;
+if(p==name_ptr)/*41:*/
+#line 706 "cwebdir/common.w"
+{
+if(byte_ptr+l> byte_mem_end)overflow("byte memory");
+if(name_ptr>=name_dir_end)overflow("name");
+strncpy(byte_ptr,first,l);
+(++name_ptr)->byte_start= byte_ptr+= l;
+if(program==cweave)init_p(p,t);
+}
+
+/*:41*/
+#line 675 "cwebdir/common.w"
+;
+return(p);
+}
+
+/*:37*//*44:*/
+#line 764 "cwebdir/common.w"
+
+void
+#line 341 "cwebdir/comm-w2c.ch"
+ print_section_name(name_pointer p)
+#line 768 "cwebdir/common.w"
+{
+char*ss,*s= first_chunk(p);
+name_pointer q= p+1;
+while(p!=name_dir){
+ss= (p+1)->byte_start-1;
+if(*ss==' '&&ss>=s){
+term_write(s,ss-s);p= q->link;q= p;
+}else{
+term_write(s,ss+1-s);p= name_dir;q= NULL;
+}
+s= p->byte_start;
+}
+if(q)term_write("...",3);
+}
+
+/*:44*//*45:*/
+#line 783 "cwebdir/common.w"
+
+void
+#line 351 "cwebdir/comm-w2c.ch"
+ sprint_section_name(char*dest,name_pointer p)
+#line 788 "cwebdir/common.w"
+{
+char*ss,*s= first_chunk(p);
+name_pointer q= p+1;
+while(p!=name_dir){
+ss= (p+1)->byte_start-1;
+if(*ss==' '&&ss>=s){
+p= q->link;q= p;
+}else{
+ss++;p= name_dir;
+}
+strncpy(dest,s,ss-s),dest+= ss-s;
+s= p->byte_start;
+}
+*dest= '\0';
+}
+
+/*:45*//*46:*/
+#line 804 "cwebdir/common.w"
+
+#line 361 "cwebdir/comm-w2c.ch"
+static void
+print_prefix_name(name_pointer p)
+#line 808 "cwebdir/common.w"
+{
+char*s= first_chunk(p);
+int l= prefix_length(p);
+term_write(s,l);
+if(s+l<(p+1)->byte_start)term_write("...",3);
+}
+
+/*:46*//*47:*/
+#line 825 "cwebdir/common.w"
+
+#line 372 "cwebdir/comm-w2c.ch"
+
+static int
+web_strcmp(char*j,int j_len,char*k,int k_len)
+#line 829 "cwebdir/common.w"
+{
+#line 384 "cwebdir/comm-w2c.ch"
+char*j1= j+j_len,*k1= k+k_len;
+while(k<k1&&j<j1&&*j==*k)k++,j++;
+if(k==k1)if(j==j1)return equal;
+else return extension;
+else if(j==j1)return prefix;
+#line 835 "cwebdir/common.w"
+else if(*j<*k)return less;
+else return greater;
+}
+
+/*:47*//*49:*/
+#line 855 "cwebdir/common.w"
+
+#line 412 "cwebdir/comm-w2c.ch"
+static name_pointer
+add_section_name(name_pointer par,int c,char*first,char*last,
+int ispref)
+#line 863 "cwebdir/common.w"
+{
+name_pointer p= name_ptr;
+char*s= first_chunk(p);
+int name_len= last-first+ispref;
+if(s+name_len> byte_mem_end)overflow("byte memory");
+if(name_ptr+1>=name_dir_end)overflow("name");
+(++name_ptr)->byte_start= byte_ptr= s+name_len;
+if(ispref){
+*(byte_ptr-1)= ' ';
+name_len--;
+name_ptr->link= name_dir;
+(++name_ptr)->byte_start= byte_ptr;
+}
+set_prefix_length(p,name_len);
+strncpy(s,first,name_len);
+p->llink= NULL;
+p->rlink= NULL;
+init_node(p);
+return par==NULL?(root= p):c==less?(par->llink= p):(par->rlink= p);
+}
+
+/*:49*//*50:*/
+#line 884 "cwebdir/common.w"
+
+#line 427 "cwebdir/comm-w2c.ch"
+static void
+extend_section_name(name_pointer p,char*first,char*last,int ispref)
+#line 891 "cwebdir/common.w"
+{
+char*s;
+name_pointer q= p+1;
+int name_len= last-first+ispref;
+if(name_ptr>=name_dir_end)overflow("name");
+while(q->link!=name_dir)q= q->link;
+q->link= name_ptr;
+s= name_ptr->byte_start;
+name_ptr->link= name_dir;
+if(s+name_len> byte_mem_end)overflow("byte memory");
+(++name_ptr)->byte_start= byte_ptr= s+name_len;
+strncpy(s,first,name_len);
+if(ispref)*(byte_ptr-1)= ' ';
+}
+
+/*:50*//*51:*/
+#line 912 "cwebdir/common.w"
+
+name_pointer
+#line 438 "cwebdir/comm-w2c.ch"
+
+section_lookup(char*first,char*last,int ispref)
+#line 917 "cwebdir/common.w"
+{
+int c= 0;
+name_pointer p= root;
+name_pointer q= NULL;
+name_pointer r= NULL;
+name_pointer par= NULL;
+
+int name_len= last-first+1;
+/*52:*/
+#line 936 "cwebdir/common.w"
+
+while(p){
+c= web_strcmp(first,name_len,first_chunk(p),prefix_length(p));
+if(c==less||c==greater){
+if(r==NULL)
+par= p;
+p= (c==less?p->llink:p->rlink);
+}else{
+if(r!=NULL){
+printf("\n! Ambiguous prefix: matches <");
+
+print_prefix_name(p);
+printf(">\n and <");
+print_prefix_name(r);
+err_print(">");
+return name_dir;
+}
+r= p;
+p= p->llink;
+q= r->rlink;
+}
+if(p==NULL)
+p= q,q= NULL;
+}
+
+/*:52*/
+#line 926 "cwebdir/common.w"
+;
+/*53:*/
+#line 961 "cwebdir/common.w"
+
+if(r==NULL)
+return add_section_name(par,c,first,last+1,ispref);
+
+/*:53*/
+#line 927 "cwebdir/common.w"
+;
+/*54:*/
+#line 969 "cwebdir/common.w"
+
+switch(section_name_cmp(&first,name_len,r)){
+
+case prefix:
+if(!ispref){
+printf("\n! New name is a prefix of <");
+
+print_section_name(r);
+err_print(">");
+}
+else if(name_len<prefix_length(r))set_prefix_length(r,name_len);
+
+case equal:return r;
+case extension:if(!ispref||first<=last)
+extend_section_name(r,first,last+1,ispref);
+return r;
+case bad_extension:
+printf("\n! New name extends <");
+
+print_section_name(r);
+err_print(">");
+return r;
+default:
+printf("\n! Section name incompatible with <");
+
+print_prefix_name(r);
+printf(">,\n which abbreviates <");
+print_section_name(r);
+err_print(">");
+return r;
+}
+
+/*:54*/
+#line 928 "cwebdir/common.w"
+;
+}
+
+/*:51*//*56:*/
+#line 1020 "cwebdir/common.w"
+
+#line 458 "cwebdir/comm-w2c.ch"
+static int
+section_name_cmp(char**pfirst,int len,name_pointer r)
+#line 1025 "cwebdir/common.w"
+{
+char*first= *pfirst;
+name_pointer q= r+1;
+char*ss,*s= first_chunk(r);
+int c;
+int ispref;
+while(1){
+ss= (r+1)->byte_start-1;
+if(*ss==' '&&ss>=r->byte_start)ispref= 1,q= q->link;
+else ispref= 0,ss++,q= name_dir;
+switch(c= web_strcmp(first,len,s,ss-s)){
+case equal:if(q==name_dir)
+if(ispref){
+*pfirst= first+(ss-s);
+return extension;
+}else return equal;
+else return(q->byte_start==(q+1)->byte_start)?equal:prefix;
+case extension:
+if(!ispref)return bad_extension;
+first+= ss-s;
+if(q!=name_dir){len-= ss-s;s= q->byte_start;r= q;continue;}
+*pfirst= first;return extension;
+default:return c;
+}
+}
+}
+
+/*:56*//*60:*/
+#line 1095 "cwebdir/common.w"
+
+void
+#line 478 "cwebdir/comm-w2c.ch"
+ err_print(const char*s)
+#line 1099 "cwebdir/common.w"
+{
+char*k,*l;
+printf(*s=='!'?"\n%s":"%s",s);
+if(web_file_open)/*61:*/
+#line 1115 "cwebdir/common.w"
+
+{if(changing&&include_depth==change_depth)
+printf(". (l. %d of change file)\n",change_line);
+else if(include_depth==0)printf(". (l. %d)\n",cur_line);
+else printf(". (l. %d of include file %s)\n",cur_line,cur_file_name);
+l= (loc>=limit?limit:loc);
+if(l> buffer){
+for(k= buffer;k<l;k++)
+if(*k=='\t')putchar(' ');
+else putchar(*k);
+putchar('\n');
+for(k= buffer;k<l;k++)putchar(' ');
+}
+for(k= l;k<limit;k++)putchar(*k);
+if(*limit=='|')putchar('|');
+putchar(' ');
+}
+
+/*:61*/
+#line 1102 "cwebdir/common.w"
+;
+update_terminal;mark_error;
+}
+
+/*:60*//*63:*/
+#line 1150 "cwebdir/common.w"
+
+#line 498 "cwebdir/comm-w2c.ch"
+int wrap_up(void){
+#line 1152 "cwebdir/common.w"
+putchar('\n');
+if(show_stats)
+print_stats();
+/*64:*/
+#line 1160 "cwebdir/common.w"
+
+switch(history){
+case spotless:if(show_happiness)printf("(No errors were found.)\n");break;
+case harmless_message:
+printf("(Did you see the warning message above?)\n");break;
+case error_message:
+printf("(Pardon me, but I think I spotted something wrong.)\n");break;
+case fatal_message:printf("(That was a fatal error, my friend.)\n");
+}
+
+/*:64*/
+#line 1155 "cwebdir/common.w"
+;
+if(history> harmless_message)return(1);
+else return(0);
+}
+
+/*:63*//*66:*/
+#line 1179 "cwebdir/common.w"
+void
+#line 518 "cwebdir/comm-w2c.ch"
+ fatal(const char*s,const char*t)
+#line 1182 "cwebdir/common.w"
+{
+if(*s)printf(s);
+err_print(t);
+history= fatal_message;exit(wrap_up());
+}
+
+/*:66*//*67:*/
+#line 1190 "cwebdir/common.w"
+void
+#line 527 "cwebdir/comm-w2c.ch"
+ overflow(const char*t)
+#line 1193 "cwebdir/common.w"
+{
+printf("\n! Sorry, %s capacity exceeded",t);fatal("","");
+}
+
+
+/*:67*//*72:*/
+#line 1254 "cwebdir/common.w"
+
+#line 586 "cwebdir/comm-w2c.ch"
+static void
+scan_args(void)
+#line 1257 "cwebdir/common.w"
+{
+char*dot_pos;
+char*name_pos;
+register char*s;
+boolean found_web= 0,found_change= 0,found_out= 0;
+
+boolean flag_change;
+
+while(--argc> 0){
+if((**(++argv)=='-'||**argv=='+')&&*(*argv+1))/*76:*/
+#line 611 "cwebdir/comm-w2c.ch"
+
+{
+if(strcmp("-help",*argv)==0||strcmp("--help",*argv)==0)
+/*86:*/
+#line 711 "cwebdir/comm-w2c.ch"
+
+usagehelp(program==ctangle?CTANGLEHELP:CWEAVEHELP,NULL);
+
+
+/*:86*/
+#line 614 "cwebdir/comm-w2c.ch"
+;
+if(strcmp("-version",*argv)==0||strcmp("--version",*argv)==0)
+/*87:*/
+#line 720 "cwebdir/comm-w2c.ch"
+
+printversionandexit((program==ctangle?ctangle_banner:cweave_banner),
+"Silvio Levy and Donald E. Knuth",NULL,NULL);
+
+
+/*:87*/
+#line 616 "cwebdir/comm-w2c.ch"
+;
+#line 1346 "cwebdir/common.w"
+if(**argv=='-')flag_change= 0;
+#line 622 "cwebdir/comm-w2c.ch"
+else flag_change= 1;
+if(*(*argv+1)=='d')
+if(sscanf(*argv+2,"%u",&kpathsea_debug)!=1)/*77:*/
+#line 1352 "cwebdir/common.w"
+
+{
+#line 645 "cwebdir/comm-w2c.ch"
+if(program==ctangle){
+fprintf(stderr,"ctangle: Need one to three file arguments.\n");
+usage("ctangle");
+}else{
+fprintf(stderr,"cweave: Need one to three file arguments.\n");
+usage("cweave");
+}
+#line 1362 "cwebdir/common.w"
+}
+
+/*:77*/
+#line 624 "cwebdir/comm-w2c.ch"
+;
+#line 1348 "cwebdir/common.w"
+for(dot_pos= *argv+1;*dot_pos> '\0';dot_pos++)
+#line 630 "cwebdir/comm-w2c.ch"
+flags[(unsigned char)*dot_pos]= flag_change;
+#line 1350 "cwebdir/common.w"
+}
+
+/*:76*/
+#line 1266 "cwebdir/common.w"
+
+else{
+s= name_pos= *argv;dot_pos= NULL;
+while(*s){
+if(*s=='.')dot_pos= s++;
+else if(*s=='/')dot_pos= NULL,name_pos= ++s;
+else s++;
+}
+if(!found_web)/*73:*/
+#line 1292 "cwebdir/common.w"
+
+{
+if(s-*argv> max_file_name_length-5)
+/*78:*/
+#line 1364 "cwebdir/common.w"
+fatal("! Filename too long\n",*argv);
+
+
+/*:78*/
+#line 1295 "cwebdir/common.w"
+;
+if(dot_pos==NULL)
+sprintf(web_file_name,"%s.w",*argv);
+else{
+strcpy(web_file_name,*argv);
+*dot_pos= 0;
+}
+#line 1303 "cwebdir/common.w"
+sprintf(tex_file_name,"%s.tex",name_pos);
+sprintf(idx_file_name,"%s.idx",name_pos);
+sprintf(scn_file_name,"%s.scn",name_pos);
+sprintf(C_file_name,"%s.c",name_pos);
+found_web= 1;
+}
+
+/*:73*/
+#line 1275 "cwebdir/common.w"
+
+else if(!found_change)/*74:*/
+#line 1310 "cwebdir/common.w"
+
+{
+if(strcmp(*argv,"-")==0)found_change= -1;
+else{
+if(s-*argv> max_file_name_length-4)
+/*78:*/
+#line 1364 "cwebdir/common.w"
+fatal("! Filename too long\n",*argv);
+
+
+/*:78*/
+#line 1315 "cwebdir/common.w"
+;
+if(dot_pos==NULL)
+sprintf(change_file_name,"%s.ch",*argv);
+else strcpy(change_file_name,*argv);
+found_change= 1;
+}
+}
+
+/*:74*/
+#line 1276 "cwebdir/common.w"
+
+else if(!found_out)/*75:*/
+#line 1323 "cwebdir/common.w"
+
+{
+if(s-*argv> max_file_name_length-5)
+/*78:*/
+#line 1364 "cwebdir/common.w"
+fatal("! Filename too long\n",*argv);
+
+
+/*:78*/
+#line 1326 "cwebdir/common.w"
+;
+if(dot_pos==NULL){
+sprintf(tex_file_name,"%s.tex",*argv);
+sprintf(idx_file_name,"%s.idx",*argv);
+sprintf(scn_file_name,"%s.scn",*argv);
+sprintf(C_file_name,"%s.c",*argv);
+}else{
+strcpy(tex_file_name,*argv);
+strcpy(C_file_name,*argv);
+if(flags['x']){
+*dot_pos= 0;
+sprintf(idx_file_name,"%s.idx",*argv);
+sprintf(scn_file_name,"%s.scn",*argv);
+}
+}
+found_out= 1;
+}
+
+#line 611 "cwebdir/comm-w2c.ch"
+/*:75*/
+#line 1277 "cwebdir/common.w"
+
+else/*77:*/
+#line 1352 "cwebdir/common.w"
+
+{
+#line 645 "cwebdir/comm-w2c.ch"
+if(program==ctangle){
+fprintf(stderr,"ctangle: Need one to three file arguments.\n");
+usage("ctangle");
+}else{
+fprintf(stderr,"cweave: Need one to three file arguments.\n");
+usage("cweave");
+}
+#line 1362 "cwebdir/common.w"
+}
+
+/*:77*/
+#line 1278 "cwebdir/common.w"
+;
+}
+}
+if(!found_web)/*77:*/
+#line 1352 "cwebdir/common.w"
+
+{
+#line 645 "cwebdir/comm-w2c.ch"
+if(program==ctangle){
+fprintf(stderr,"ctangle: Need one to three file arguments.\n");
+usage("ctangle");
+}else{
+fprintf(stderr,"cweave: Need one to three file arguments.\n");
+usage("cweave");
+}
+#line 1362 "cwebdir/common.w"
+}
+
+/*:77*/
+#line 1281 "cwebdir/common.w"
+;
+#line 596 "cwebdir/comm-w2c.ch"
+if(found_change<=0)strcpy(change_file_name,DEV_NULL);
+#line 1283 "cwebdir/common.w"
+}
+
+/*:72*/