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56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
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/* j/2/snag.c
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**
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** This file is in the public domain.
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*/
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#include "all.h"
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#include "../pit.h"
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/* functions
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*/
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u2_weak // transfer
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j2_mbc(Pt2, snag)(u2_wire wir_r,
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u2_atom a, // retain
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u2_noun b) // retain
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{
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if ( !u2_fly_is_cat(a) ) {
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return u2_bl_bail(wir_r, c3__fail);
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}
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else {
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c3_w len_w = a;
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while ( len_w ) {
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if ( u2_no == u2_dust(b) ) {
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return u2_bl_bail(wir_r, c3__exit);
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}
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b = u2_t(b);
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len_w--;
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}
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if ( u2_no == u2_dust(b) ) {
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return u2_bl_bail(wir_r, c3__exit);
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}
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return u2_rx(wir_r, u2_h(b));
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}
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}
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u2_noun // transfer
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j2_mb(Pt2, snag)(u2_wire wir_r,
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u2_noun cor) // retain
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{
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u2_noun a, b;
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if ( (u2_no == u2_mean(cor, u2_cv_sam_2, &a, u2_cv_sam_3, &b, 0)) ||
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(u2_no == u2_stud(a)) )
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{
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return u2_bl_bail(wir_r, c3__exit);
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} else {
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return j2_mbc(Pt2, snag)(wir_r, a, b);
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}
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}
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/* structures
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*/
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u2_ho_jet
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j2_mbj(Pt2, snag)[] = {
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{ ".2", c3__lite, j2_mb(Pt2, snag), Tier2, u2_none, u2_none },
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{ }
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};
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