From mboxrd@z Thu Jan  1 00:00:00 1970
From: quanstro@quanstro.net (erik quanstrom)
Date: Tue,  8 Mar 2011 09:55:19 -0500
Subject: [9fans] troff pic bug report -> acid debug -> no fix yet
In-Reply-To: <AANLkTikrvnF5Q7FD_UjeGxywODNvyuuh5=3JWnNJ2EQn@mail.gmail.com>
References: <AANLkTikrvnF5Q7FD_UjeGxywODNvyuuh5=3JWnNJ2EQn@mail.gmail.com>
Message-ID: <ee799e9ec42549dfb7448590eb6078fe@brasstown.quanstro.net>
Topicbox-Message-UUID: b8e95e7a-ead6-11e9-9d60-3106f5b1d025

; diffy -c symtab.c
/n/dump/2011/0308/sys/src/cmd/pic/symtab.c:8,22 - symtab.c:8,26
  YYSTYPE getvar(char *s)	/* return value of variable s (usually pointer) */
  {
  	struct symtab *p;
- 	static YYSTYPE bug;
+ 	static YYSTYPE bug, bugplace;
  
  	p = lookup(s);
  	if (p == NULL) {
- 		if (islower(s[0]))
+ 		if (islower(s[0])) {
  			ERROR "no such variable as %s", s WARNING;
- 		else
+ 			return(bug);
+ 		} else {
  			ERROR "no such place as %s", s WARNING;
- 		return(bug);
+ 			if(bugplace.o == NULL)
+ 				bugplace.o = makepos(0., 0.);
+ 			return(bugplace);
+ 		}
  	}
  	return(p->s_val);
  }

- erik