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