Internal shuffling for debugging.
 [rsc] --rw-rw-r-- M 320859 glenda sys 10758 Oct 27 10:36 sys/src/cmd/sam/cmd.c
	/n/sourcesdump/2005/1027/plan9/sys/src/cmd/sam/cmd.c:3,9 - 
	/n/sourcesdump/2005/1028/plan9/sys/src/cmd/sam/cmd.c:3,9
	  
	  static char	linex[]="\n";
	  static char	wordx[]=" \t\n";
	- struct cmdtab cmdtab[]={
	+ Cmdtab cmdtab[]={
	  /*	cmdc	text	regexp	addr	defcmd	defaddr	count	token	 fn	*/
	  	'\n',	0,	0,	0,	0,	aDot,	0,	0,	nl_cmd,
	  	'a',	1,	0,	0,	0,	aDot,	0,	0,	a_cmd,
	/n/sourcesdump/2005/1027/plan9/sys/src/cmd/sam/cmd.c:108,122 - 
	/n/sourcesdump/2005/1028/plan9/sys/src/cmd/sam/cmd.c:108,133
	  int
	  inputline(void)
	  {
	- 	int i, c;
	+ 	int i, c, start;
	  
	- 	linep = line;
	- 	i = 0;
	+ 	/*
	+ 	 * Could set linep = line and i = 0 here and just
	+ 	 * error(Etoolong) below, but this way we keep
	+ 	 * old input buffer history around for a while.
	+ 	 * This is useful only for debugging.
	+ 	 */
	+ 	i = linep - line;
	  	do{
	  		if((c = inputc())<=0)
	  			return -1;
	- 		if(i == (sizeof line)/RUNESIZE-1)
	- 			error(Etoolong);
	+ 		if(i == nelem(line)-1){
	+ 			if(linep == line)
	+ 				error(Etoolong);
	+ 			start = linep - line;
	+ 			runemove(line, linep, i-start);
	+ 			i -= start;
	+ 			linep = line;
	+ 		}
	  	}while((line[i++]=c) != '\n');
	  	line[i] = 0;
	  	return 1;
	/n/sourcesdump/2005/1027/plan9/sys/src/cmd/sam/cmd.c:186,192 - 
	/n/sourcesdump/2005/1028/plan9/sys/src/cmd/sam/cmd.c:197,203
	  	Posn p;
	  
	  	for(p=cmdpt; p<cmd->nc; p++){
	- 		if(terminp >= &termline[BLOCKSIZE]){
	+ 		if(terminp >= termline+nelem(termline)){
	  			cmdpt = cmd->nc;
	  			error(Etoolong);
	  		}
	/n/sourcesdump/2005/1027/plan9/sys/src/cmd/sam/cmd.c:389,395 - 
	/n/sourcesdump/2005/1028/plan9/sys/src/cmd/sam/cmd.c:400,406
	  parsecmd(int nest)
	  {
	  	int i, c;
	- 	struct cmdtab *ct;
	+ 	Cmdtab *ct;
	  	Cmd *cp, *ncp;
	  	Cmd cmd;
	  
 [rsc] --rw-rw-r-- M 320859 glenda sys 1934 Oct 27 10:36 sys/src/cmd/sam/parse.h
	/n/sourcesdump/2005/1027/plan9/sys/src/cmd/sam/parse.h:33,39 - 
	/n/sourcesdump/2005/1028/plan9/sys/src/cmd/sam/parse.h:33,41
	  #define	ctext	g.text
	  #define	caddr	g.addr
	  
	- extern struct cmdtab{
	+ typedef struct Cmdtab Cmdtab;
	+ struct Cmdtab
	+ {
	  	ushort	cmdc;		/* command character */
	  	uchar	text;		/* takes a textual argument? */
	  	uchar	regexp;		/* takes a regular expression? */