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Annotation of 43BSD/contrib/B/src/bint/b2tar.c, revision 1.1.1.1

1.1       root        1: /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
                      2: 
                      3: /*
                      4:   $Header: b2tar.c,v 1.4 85/08/22 16:56:49 timo Exp $
                      5: */
                      6: 
                      7: #include "b.h"
                      8: #include "b1obj.h"
                      9: #include "b2par.h"
                     10: #include "b2syn.h"
                     11: #include "b2nod.h"
                     12: #include "b3err.h"
                     13: 
                     14: Forward parsetree singtarg();
                     15: 
                     16: Visible parsetree targ(q) txptr q; {
                     17:        return collateral(q, singtarg);
                     18: }
                     19: 
                     20: Hidden parsetree singtarg(q) txptr q; {
                     21:        parsetree v; value t;
                     22:        skipsp(&tx);
                     23:        if (nothing(q, "target")) return NilTree;
                     24:        if (open_sign()) v= compound(q, targ);
                     25:        else if (is_tag(&t)) v= node2(TAG, t);
                     26:        else {
                     27:                parerr(MESS(2500, "no target where expected"));
                     28:                tx= q;
                     29:                return NilTree;
                     30:        }
                     31:        selection(q, &v);
                     32:        tar_trimmed_text(q, &v);
                     33:        upto(q, "target");
                     34:        return v;
                     35: }

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