[unix-history] / usr / src / old / as.vax / asscan2.c

/*
 * Copyright (c) 1982 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static char sccsid[] = "@(#)asscan2.c	5.1 (Berkeley) %G%";
#endif not lint

#include "asscanl.h"

static	inttoktype	oval = NL;
#define	ASINBUFSIZ	4096
char	inbufunget[8];
char	inbuffer[ASINBUFSIZ];
char	*Ginbufptr = inbuffer;
int	Ginbufcnt = 0;
int	scannerhadeof;

fillinbuffer()
{
		int	nread;
		int	goal;
		int	got;

	nread = 0;
	if (scannerhadeof == 0){
		goal = sizeof(inbuffer);
		do {
			got = read(stdin->_file, inbuffer + nread, goal);
			if (got == 0)
				scannerhadeof = 1;
			if (got <= 0)
				break;
			nread += got;
			goal -= got;
		} while (goal);
	} else {
		scannerhadeof = 0;
	}
	/*
	 *	getchar assumes that Ginbufcnt and Ginbufptr
	 *	are adjusted as if one character has been removed
	 *	from the input.
	 */
	if (nread == 0){
		inbuffer[0] = EOFCHAR;
		nread = 1;
	}
	Ginbufcnt = nread - 1;
	Ginbufptr = inbuffer + 1;
}

scan_dot_s(bufferbox)
	struct tokbufdesc *bufferbox;
{
	reg	char	*inbufptr;
	reg	int	inbufcnt;
	reg	int	ryylval;	/* local copy of lexical value */
	extern	int	yylval;		/* global copy of lexical value */
	reg	int	val;		/* the value returned */
		int	i;		/* simple counter */
	reg	char	*rcp;	
		int	ch;		/* treated as a character */
		int	ch1;		/* shadow value */
		struct 	symtab	*op;
		ptrall	lgbackpatch;	/* where to stuff a string length */
	reg	ptrall	bufptr;		/* where to stuff tokens */
		ptrall	bufub;		/* where not to stuff tokens */
		long	intval;		/* value of int */
		int	linescrossed;	/* when doing strings and comments */
		struct	Opcode		opstruct;
	reg	int	strlg;		/* the length of a string */

	(bytetoktype *)bufptr = (bytetoktype *) & (bufferbox->toks[0]);	
	(bytetoktype *)bufub = &(bufferbox->toks[AVAILTOKS]);

	MEMTOREGBUF;
	if (newfflag){
		newfflag = 0;
		ryylval = (int)savestr(newfname, strlen(newfname)+1, STR_BOTH);

		ptoken(bufptr, IFILE);
		ptoken(bufptr, STRING);
		pptr(bufptr, ryylval);

		ptoken(bufptr, ILINENO);
		ptoken(bufptr, INT);
		pint(bufptr,  1);
	}

	while (bufptr < bufub){
   loop:
        switch(ryylval = (type+1)[ch = getchar()]) {
	case SCANEOF:
	endoffile: ;
		inbufptr = 0;
		ptoken(bufptr, PARSEEOF);
		goto done;

	case DIV:		/*process C style comments*/
		if ( (ch = getchar()) == '*') {  /*comment prelude*/
			int	incomment;
			linescrossed = 0;
			incomment = 1;
			ch = getchar();	/*skip over the * */
			while(incomment){
				switch(ch){
				case '*':
					ch = getchar();
					incomment = (ch != '/');
					break;
				case '\n':
					scanlineno++;
					linescrossed++;
					ch = getchar();
					break;
				case EOFCHAR:
					goto endoffile;
				default:
					ch = getchar();
					break;
				}
			}
			val = ILINESKIP;
			ryylval = linescrossed;
			goto ret;
		} else {	/*just an ordinary DIV*/
			ungetc(ch);
			val = ryylval = DIV;
			goto ret;
		}
	case SH:
		if (oval == NL){
			/*
			 *	Attempt to recognize a C preprocessor
			 *	style comment '^#[ \t]*[0-9]*[ \t]*".*"
			 */
			ch = getchar();	/*bump the #*/
			while (INCHARSET(ch, SPACE))
				ch = getchar();/*bump white */
			if (INCHARSET(ch, DIGIT)){
				intval = 0;
				while(INCHARSET(ch, DIGIT)){
					intval = intval*10 + ch - '0';
					ch = getchar();
				}
				while (INCHARSET(ch, SPACE))
					ch = getchar();
				if (ch == '"'){
					ptoken(bufptr, ILINENO);
					ptoken(bufptr, INT);
					pint(bufptr, intval - 1);
					ptoken(bufptr, IFILE);
					/*
					 *	The '"' has already been
					 *	munched
					 *	
					 *	eatstr will not eat
					 *	the trailing \n, so
					 *	it is given to the parser
					 *	and counted.
					 */
					goto eatstr;
				}
			}
		}
		/*
		 *	Well, its just an ordinary decadent comment
		 */
		while ((ch != '\n') && (ch != EOFCHAR)) 
			ch = getchar();
		if (ch == EOFCHAR)
			goto endoffile;
		val = ryylval = oval = NL;
		scanlineno++;
		goto ret;

	case NL:
		scanlineno++;
		val = ryylval;
		goto ret;

	case SP:
		oval = SP;	/*invalidate ^# meta comments*/
		goto loop;

	case REGOP:		/* % , could be used as modulo, or register*/
		ch = getchar();
		if (INCHARSET(ch, DIGIT)){
			ryylval = ch-'0';
			if (ch=='1') {
				if (INCHARSET( (ch = getchar()), REGDIGIT))
					ryylval = 10+ch-'0';
				else
					ungetc(ch);
			}
			/*
			 *	God only knows what the original author
			 *	wanted this undocumented feature to
			 *	do.
			 *		%5++ is really  r7
			 */
			while(INCHARSET( (ch = getchar()), SIGN)) {
				if (ch=='+')
					ryylval++;
				else
					ryylval--;
			}
			ungetc(ch);
			val = REG;
		} else {
			ungetc(ch);
			val = REGOP;
		}
		goto ret;

	case ALPH:
		ch1 = ch;
		if (INCHARSET(ch, SZSPECBEGIN)){
			if( (ch = getchar()) == '`' || ch == '^'){
				ch1 |= 0100;	/*convert to lower*/
				switch(ch1){
				case 'b':	ryylval = 1;	break;
				case 'w':	ryylval = 2;	break;
				case 'l':	ryylval = 4;	break;
				default:	ryylval = d124;	break;
				}
				val = SIZESPEC;
				goto ret;
			} else {
				ungetc(ch);
				ch = ch1;	/*restore first character*/
			}
		}
		rcp = yytext;
		do {
			if (rcp < &yytext[NCPName])
				*rcp++ = ch;
		} while (INCHARSET ( (ch = getchar()), ALPHA | DIGIT));
		*rcp = '\0';
		while (INCHARSET(ch, SPACE))
			ch = getchar();
		ungetc(ch);
	
		switch((op = *lookup(1))->s_tag){
		case 0:
		case LABELID:
			/*
			 *	Its a name... (Labels are subsets of name)
			 */
			ryylval = (int)op;
			val = NAME;
			break;
		case INST0:
		case INSTn:
		case IJXXX:
			opstruct.Op_popcode = ( (struct instab *)op)->i_popcode;
			opstruct.Op_eopcode = ( (struct instab *)op)->i_eopcode;
			val = op->s_tag;
			break;
		default:
			ryylval = ( (struct instab *)op)->i_popcode;
			val = op->s_tag;
			break;
		}
		goto ret;

	case DIG:
		/*
		 *	restore local inbufptr and inbufcnt
		 */
		REGTOMEMBUF;
		val = number(ch);
		MEMTOREGBUF;
		/*
		 *	yylval or yybignum has been stuffed as a side
		 *	effect to number(); get the global yylval
		 *	into our fast local copy in case it was an INT.
		 */
		ryylval = yylval;
		goto ret;

	case LSH:
	case RSH:
		/*
		 *	We allow the C style operators
		 *	<< and >>, as well as < and >
		 */
		if ( (ch1 = getchar()) != ch)
			ungetc(ch1);
		val = ryylval;
		goto ret;

	case MINUS:
		if ( (ch = getchar()) =='(')
			ryylval=val=MP;
		else {
			ungetc(ch);
			val=MINUS;
		}
		goto ret;

	case SQ:
		if ((ryylval = getchar()) == '\n')
			scanlineno++;		/*not entirely correct*/
		val = INT;
		goto ret;

	case DQ:
	   eatstr:
		linescrossed = 0;
		for (strlg = 0; /*VOID*/; strlg++){
		    switch(ch = getchar()){
		    case '"':
			goto tailDQ;
		    default:
		    stuff:
			putc(ch, strfile);
			break;
		    case '\n':
			yywarning("New line in a string constant");
			scanlineno++;
			linescrossed++;
			ch = getchar();
			switch(ch){
			case EOFCHAR:
				putc('\n', strfile);
				ungetc(EOFCHAR);
				goto tailDQ;
			default:
				ungetc(ch);
				ch = '\n';
				goto stuff;
			}
			break;

		    case '\\':
			ch = getchar();		/*skip the '\\'*/
			if ( INCHARSET(ch, BSESCAPE)){
				switch (ch){
				  case 'b':  ch = '\b'; goto stuff;
				  case 'f':  ch = '\f'; goto stuff;
				  case 'n':  ch = '\n'; goto stuff;
				  case 'r':  ch = '\r'; goto stuff;
				  case 't':  ch = '\t'; goto stuff;
				}
			}
			if ( !(INCHARSET(ch, OCTDIGIT)) ) 
				goto stuff;
			i = 0;
			intval = 0;
			while ( (i < 3) && (INCHARSET(ch, OCTDIGIT))){
				i++;
				intval <<= 3;
				intval += ch - '0';
				ch = getchar();
			}
			ungetc(ch);
			ch = (char)intval;
			goto stuff;
		    }
		}
	tailDQ: ;
		/*
		 *	account for any lines that were crossed
		 */
		if (linescrossed){
			ptoken(bufptr, ILINESKIP);
			pint(bufptr, linescrossed);
		}
		/*
		 *	Cheat: append a trailing null to the string
		 *	and then adjust the string length to ignore
		 *	the trailing null.  If any STRING client requires
		 *	the trailing null, the client can just change STRLEN
		 */
		putc(0, strfile);
		ryylval = (int)savestr((char *)0, strlg + 1, STR_FILE);
		val = STRING;
		((struct strdesc *)ryylval)->sd_strlen -= 1;
		goto ret;

	case BADCHAR:
		linescrossed = lineno;
		lineno = scanlineno;
		yyerror("Illegal character mapped: %d, char read:(octal) %o",
			ryylval, ch);
		lineno = linescrossed;
		val = BADCHAR;
		goto ret;

	default:
		val = ryylval;
		goto ret;
	}	/*end of the switch*/
	/*
	 *	here with one token, so stuff it
	 */
   ret:	
	oval = val;
	ptoken(bufptr, val);
	switch(val){
		case	ILINESKIP:
				pint(bufptr, ryylval);
				break;
		case	SIZESPEC:
				pchar(bufptr, ryylval);
				break;
		case	BFINT:	plong(bufptr, ryylval);
				break;
		case	INT:	plong(bufptr, ryylval);
				break;
		case 	BIGNUM:	pnumber(bufptr, yybignum);
				break;
		case	STRING:	pptr(bufptr, (int)(char *)ryylval);
				break;
		case	NAME:	pptr(bufptr, (int)(struct symtab *)ryylval);
				break;
		case	REG:	pchar(bufptr, ryylval);
				break;	
		case	INST0:
		case	INSTn:
				popcode(bufptr, opstruct);
				break;
		case 	IJXXX:
				popcode(bufptr, opstruct);
				pptr(bufptr, (int)(struct symtab *)symalloc());
				break;
		case	ISTAB:
		case	ISTABSTR:
		case	ISTABNONE:
		case	ISTABDOT:
		case	IALIGN:
				pptr(bufptr, (int)(struct symtab *)symalloc());
				break;
	/*
	 *	default:
	 */
	 }
	 builtval: ;
   }			/*end of the while to stuff the buffer*/
   done:
	bufferbox->tok_count = (bytetoktype *)bufptr - &(bufferbox->toks[0]);
	/*
	 *	This is a real kludge:
	 *
	 *	We put the last token in the buffer to be  a MINUS
	 *	symbol.  This last token will never be picked up
	 *	in the normal way, but can be looked at during
	 *	a peekahead look that the short circuit expression
	 *	evaluator uses to see if an expression is complicated.
	 *
	 *	Consider the following situation:
	 *
	 *	.word	45		+	47
	 *        buffer 1      |  buffer 0
	 *	the peekahead would want to look across the buffer,
	 *	but will look in the buffer end zone, see the minus, and
	 *	fail.
	 */
	ptoken(bufptr, MINUS);
	REGTOMEMBUF;
}
Commit	Line	Data
3bd55f52	1	/*
bcf1365c DF	2	* Copyright (c) 1982 Regents of the University of California.
	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
3bd55f52	5	*/
bcf1365c	6
3bd55f52	7	#ifndef lint
bcf1365c	8	static char sccsid[] = "@(#)asscan2.c 5.1 (Berkeley) %G%";
3bd55f52 RH	9	#endif not lint
	10
	11	#include "asscanl.h"
12044a7d	12
3bd55f52	13	static inttoktype oval = NL;
c86c4907	14	#define ASINBUFSIZ 4096
12044a7d RH	15	char inbufunget[8];
	16	char inbuffer[ASINBUFSIZ];
	17	char *Ginbufptr = inbuffer;
	18	int Ginbufcnt = 0;
55520623	19	int scannerhadeof;
12044a7d RH	20
	21	fillinbuffer()
	22	{
	23	int nread;
12044a7d RH	24	int goal;
	25	int got;
	26
	27	nread = 0;
55520623	28	if (scannerhadeof == 0){
12044a7d RH	29	goal = sizeof(inbuffer);
	30	do {
	31	got = read(stdin->_file, inbuffer + nread, goal);
	32	if (got == 0)
55520623	33	scannerhadeof = 1;
12044a7d RH	34	if (got <= 0)
	35	break;
	36	nread += got;
	37	goal -= got;
	38	} while (goal);
55520623 RH	39	} else {
55520623 RH	40	scannerhadeof = 0;
12044a7d	41	}
3bd55f52	42	/*
12044a7d RH	43	* getchar assumes that Ginbufcnt and Ginbufptr
	44	* are adjusted as if one character has been removed
	45	* from the input.
3bd55f52	46	*/
12044a7d RH	47	if (nread == 0){
	48	inbuffer[0] = EOFCHAR;
	49	nread = 1;
	50	}
	51	Ginbufcnt = nread - 1;
	52	Ginbufptr = inbuffer + 1;
	53	}
3bd55f52	54
3bd55f52 RH	55	scan_dot_s(bufferbox)
	56	struct tokbufdesc *bufferbox;
	57	{
12044a7d RH	58	reg char *inbufptr;
12044a7d RH	59	reg int inbufcnt;
3bd55f52 RH	60	reg int ryylval; /* local copy of lexical value */
	61	extern int yylval; /* global copy of lexical value */
	62	reg int val; /* the value returned */
	63	int i; /* simple counter */
	64	reg char *rcp;
12044a7d	65	int ch; /* treated as a character */
3bd55f52	66	int ch1; /* shadow value */
3bd55f52	67	struct symtab *op;
3bd55f52	68	ptrall lgbackpatch; /* where to stuff a string length */
12044a7d	69	reg ptrall bufptr; /* where to stuff tokens */
3bd55f52	70	ptrall bufub; /* where not to stuff tokens */
3bd55f52 RH	71	long intval; /* value of int */
	72	int linescrossed; /* when doing strings and comments */
	73	struct Opcode opstruct;
ffe89e04	74	reg int strlg; /* the length of a string */
3bd55f52 RH	75
	76	(bytetoktype )bufptr = (bytetoktype ) & (bufferbox->toks[0]);
	77	(bytetoktype *)bufub = &(bufferbox->toks[AVAILTOKS]);
	78
12044a7d	79	MEMTOREGBUF;
3bd55f52	80	if (newfflag){
ad67d5e5	81	newfflag = 0;
ffe89e04	82	ryylval = (int)savestr(newfname, strlen(newfname)+1, STR_BOTH);
ad67d5e5	83
3bd55f52 RH	84	ptoken(bufptr, IFILE);
3bd55f52 RH	85	ptoken(bufptr, STRING);
ad67d5e5	86	pptr(bufptr, ryylval);
3bd55f52 RH	87
	88	ptoken(bufptr, ILINENO);
	89	ptoken(bufptr, INT);
	90	pint(bufptr, 1);
3bd55f52 RH	91	}
	92
	93	while (bufptr < bufub){
	94	loop:
12044a7d	95	switch(ryylval = (type+1)[ch = getchar()]) {
3bd55f52	96	case SCANEOF:
12044a7d	97	endoffile: ;
3bd55f52	98	inbufptr = 0;
12044a7d RH	99	ptoken(bufptr, PARSEEOF);
12044a7d RH	100	goto done;
3bd55f52 RH	101
	102	case DIV: /process C style comments/
	103	if ( (ch = getchar()) == '') { /comment prelude*/
	104	int incomment;
	105	linescrossed = 0;
	106	incomment = 1;
	107	ch = getchar(); /skip over the */
	108	while(incomment){
	109	switch(ch){
	110	case '*':
	111	ch = getchar();
	112	incomment = (ch != '/');
	113	break;
	114	case '\n':
	115	scanlineno++;
	116	linescrossed++;
	117	ch = getchar();
	118	break;
	119	case EOFCHAR:
	120	goto endoffile;
3bd55f52 RH	121	default:
	122	ch = getchar();
	123	break;
	124	}
	125	}
	126	val = ILINESKIP;
	127	ryylval = linescrossed;
	128	goto ret;
	129	} else { /just an ordinary DIV/
	130	ungetc(ch);
	131	val = ryylval = DIV;
	132	goto ret;
	133	}
	134	case SH:
	135	if (oval == NL){
	136	/*
	137	* Attempt to recognize a C preprocessor
	138	* style comment '^#[ \t][0-9][ \t]"."
	139	*/
	140	ch = getchar(); /bump the #/
	141	while (INCHARSET(ch, SPACE))
	142	ch = getchar();/bump white /
	143	if (INCHARSET(ch, DIGIT)){
	144	intval = 0;
	145	while(INCHARSET(ch, DIGIT)){
	146	intval = intval*10 + ch - '0';
	147	ch = getchar();
	148	}
	149	while (INCHARSET(ch, SPACE))
	150	ch = getchar();
	151	if (ch == '"'){
	152	ptoken(bufptr, ILINENO);
	153	ptoken(bufptr, INT);
	154	pint(bufptr, intval - 1);
	155	ptoken(bufptr, IFILE);
	156	/*
	157	* The '"' has already been
	158	* munched
	159	*
	160	* eatstr will not eat
	161	* the trailing \n, so
	162	* it is given to the parser
	163	* and counted.
	164	*/
	165	goto eatstr;
	166	}
	167	}
	168	}
	169	/*
	170	* Well, its just an ordinary decadent comment
	171	*/
	172	while ((ch != '\n') && (ch != EOFCHAR))
	173	ch = getchar();
	174	if (ch == EOFCHAR)
	175	goto endoffile;
	176	val = ryylval = oval = NL;
	177	scanlineno++;
	178	goto ret;
	179
	180	case NL:
	181	scanlineno++;
	182	val = ryylval;
	183	goto ret;
	184
185	case SP:
186	oval = SP; /invalidate ^# meta comments/
187	goto loop;
188
189	case REGOP: /* % , could be used as modulo, or register*/
190	ch = getchar();
191	if (INCHARSET(ch, DIGIT)){
192	ryylval = ch-'0';
193	if (ch=='1') {
194	if (INCHARSET( (ch = getchar()), REGDIGIT))
195	ryylval = 10+ch-'0';
196	else
197	ungetc(ch);
198	}
199	/*
200	* God only knows what the original author
201	* wanted this undocumented feature to
202	* do.
203	* %5++ is really r7
204	*/
205	while(INCHARSET( (ch = getchar()), SIGN)) {
206	if (ch=='+')
207	ryylval++;
208	else
209	ryylval--;
210	}
211	ungetc(ch);
212	val = REG;
213	} else {
214	ungetc(ch);
215	val = REGOP;
216	}
217	goto ret;
218
219	case ALPH:
220	ch1 = ch;
221	if (INCHARSET(ch, SZSPECBEGIN)){
222	if( (ch = getchar()) == '`' \|\| ch == '^'){
223	ch1 \|= 0100; /convert to lower/
224	switch(ch1){
225	case 'b': ryylval = 1; break;
226	case 'w': ryylval = 2; break;
227	case 'l': ryylval = 4; break;
228	default: ryylval = d124; break;
229	}
230	val = SIZESPEC;
231	goto ret;
232	} else {
233	ungetc(ch);
234	ch = ch1; /restore first character/
235	}
236	}
237	rcp = yytext;
238	do {
abcba8d5	239	if (rcp < &yytext[NCPName])
3bd55f52 RH	240	*rcp++ = ch;
	241	} while (INCHARSET ( (ch = getchar()), ALPHA \| DIGIT));
	242	*rcp = '\0';
	243	while (INCHARSET(ch, SPACE))
	244	ch = getchar();
	245	ungetc(ch);
	246
	247	switch((op = *lookup(1))->s_tag){
	248	case 0:
	249	case LABELID:
	250	/*
ec43bca4	251	* Its a name... (Labels are subsets of name)
3bd55f52 RH	252	*/
	253	ryylval = (int)op;
	254	val = NAME;
	255	break;
	256	case INST0:
	257	case INSTn:
	258	case IJXXX:
	259	opstruct.Op_popcode = ( (struct instab *)op)->i_popcode;
	260	opstruct.Op_eopcode = ( (struct instab *)op)->i_eopcode;
	261	val = op->s_tag;
	262	break;
	263	default:
	264	ryylval = ( (struct instab *)op)->i_popcode;
	265	val = op->s_tag;
	266	break;
	267	}
	268	goto ret;
	269
	270	case DIG:
	271	/*
12044a7d	272	* restore local inbufptr and inbufcnt
3bd55f52	273	*/
12044a7d RH	274	REGTOMEMBUF;
	275	val = number(ch);
	276	MEMTOREGBUF;
3bd55f52 RH	277	/*
	278	* yylval or yybignum has been stuffed as a side
	279	* effect to number(); get the global yylval
	280	* into our fast local copy in case it was an INT.
	281	*/
	282	ryylval = yylval;
3bd55f52 RH	283	goto ret;
	284
	285	case LSH:
	286	case RSH:
	287	/*
	288	* We allow the C style operators
	289	* << and >>, as well as < and >
	290	*/
	291	if ( (ch1 = getchar()) != ch)
	292	ungetc(ch1);
	293	val = ryylval;
	294	goto ret;
	295
	296	case MINUS:
	297	if ( (ch = getchar()) =='(')
	298	ryylval=val=MP;
	299	else {
	300	ungetc(ch);
	301	val=MINUS;
	302	}
	303	goto ret;
	304
	305	case SQ:
	306	if ((ryylval = getchar()) == '\n')
	307	scanlineno++; /not entirely correct/
	308	val = INT;
	309	goto ret;
	310
	311	case DQ:
	312	eatstr:
	313	linescrossed = 0;
ffe89e04	314	for (strlg = 0; /VOID/; strlg++){
ad67d5e5 RH	315	switch(ch = getchar()){
	316	case '"':
	317	goto tailDQ;
	318	default:
	319	stuff:
ec43bca4	320	putc(ch, strfile);
ad67d5e5 RH	321	break;
	322	case '\n':
	323	yywarning("New line in a string constant");
3bd55f52 RH	324	scanlineno++;
	325	linescrossed++;
	326	ch = getchar();
ad67d5e5	327	switch(ch){
ad67d5e5	328	case EOFCHAR:
ec43bca4	329	putc('\n', strfile);
3bd55f52	330	ungetc(EOFCHAR);
ad67d5e5 RH	331	goto tailDQ;
ad67d5e5 RH	332	default:
3bd55f52 RH	333	ungetc(ch);
	334	ch = '\n';
	335	goto stuff;
	336	}
ad67d5e5 RH	337	break;
	338
	339	case '\\':
3bd55f52 RH	340	ch = getchar(); /skip the '\\'/
	341	if ( INCHARSET(ch, BSESCAPE)){
	342	switch (ch){
	343	case 'b': ch = '\b'; goto stuff;
	344	case 'f': ch = '\f'; goto stuff;
	345	case 'n': ch = '\n'; goto stuff;
	346	case 'r': ch = '\r'; goto stuff;
	347	case 't': ch = '\t'; goto stuff;
	348	}
	349	}
ad67d5e5 RH	350	if ( !(INCHARSET(ch, OCTDIGIT)) )
ad67d5e5 RH	351	goto stuff;
3bd55f52 RH	352	i = 0;
	353	intval = 0;
	354	while ( (i < 3) && (INCHARSET(ch, OCTDIGIT))){
ad67d5e5 RH	355	i++;
	356	intval <<= 3;
	357	intval += ch - '0';
3bd55f52 RH	358	ch = getchar();
	359	}
	360	ungetc(ch);
8a7e35d9	361	ch = (char)intval;
3bd55f52	362	goto stuff;
ad67d5e5	363	}
3bd55f52	364	}
ad67d5e5	365	tailDQ: ;
3bd55f52	366	/*
ad67d5e5	367	* account for any lines that were crossed
3bd55f52	368	*/
3bd55f52	369	if (linescrossed){
ad67d5e5 RH	370	ptoken(bufptr, ILINESKIP);
	371	pint(bufptr, linescrossed);
	372	}
	373	/*
ad67d5e5 RH	374	* Cheat: append a trailing null to the string
	375	* and then adjust the string length to ignore
	376	* the trailing null. If any STRING client requires
	377	* the trailing null, the client can just change STRLEN
	378	*/
ec43bca4	379	putc(0, strfile);
ffe89e04 RH	380	ryylval = (int)savestr((char *)0, strlg + 1, STR_FILE);
ffe89e04 RH	381	val = STRING;
ec43bca4	382	((struct strdesc *)ryylval)->sd_strlen -= 1;
ad67d5e5	383	goto ret;
3bd55f52 RH	384
	385	case BADCHAR:
	386	linescrossed = lineno;
	387	lineno = scanlineno;
	388	yyerror("Illegal character mapped: %d, char read:(octal) %o",
	389	ryylval, ch);
	390	lineno = linescrossed;
	391	val = BADCHAR;
	392	goto ret;
	393
	394	default:
	395	val = ryylval;
	396	goto ret;
	397	} /end of the switch/
	398	/*
	399	* here with one token, so stuff it
	400	*/
	401	ret:
	402	oval = val;
	403	ptoken(bufptr, val);
	404	switch(val){
	405	case ILINESKIP:
	406	pint(bufptr, ryylval);
	407	break;
	408	case SIZESPEC:
	409	pchar(bufptr, ryylval);
	410	break;
	411	case BFINT: plong(bufptr, ryylval);
	412	break;
	413	case INT: plong(bufptr, ryylval);
	414	break;
	415	case BIGNUM: pnumber(bufptr, yybignum);
	416	break;
ad67d5e5 RH	417	case STRING: pptr(bufptr, (int)(char *)ryylval);
ad67d5e5 RH	418	break;
3bd55f52 RH	419	case NAME: pptr(bufptr, (int)(struct symtab *)ryylval);
	420	break;
	421	case REG: pchar(bufptr, ryylval);
	422	break;
	423	case INST0:
	424	case INSTn:
	425	popcode(bufptr, opstruct);
	426	break;
	427	case IJXXX:
	428	popcode(bufptr, opstruct);
	429	pptr(bufptr, (int)(struct symtab *)symalloc());
	430	break;
	431	case ISTAB:
	432	case ISTABSTR:
	433	case ISTABNONE:
	434	case ISTABDOT:
	435	case IALIGN:
	436	pptr(bufptr, (int)(struct symtab *)symalloc());
	437	break;
	438	/*
	439	* default:
	440	*/
	441	}
	442	builtval: ;
	443	} /end of the while to stuff the buffer/
	444	done:
	445	bufferbox->tok_count = (bytetoktype *)bufptr - &(bufferbox->toks[0]);
3bd55f52 RH	446	/*
	447	* This is a real kludge:
	448	*
	449	* We put the last token in the buffer to be a MINUS
	450	* symbol. This last token will never be picked up
	451	* in the normal way, but can be looked at during
	452	* a peekahead look that the short circuit expression
	453	* evaluator uses to see if an expression is complicated.
	454	*
	455	* Consider the following situation:
	456	*
	457	* .word 45 + 47
	458	* buffer 1 \| buffer 0
	459	* the peekahead would want to look across the buffer,
	460	* but will look in the buffer end zone, see the minus, and
	461	* fail.
	462	*/
	463	ptoken(bufptr, MINUS);
12044a7d	464	REGTOMEMBUF;
3bd55f52	465	}