diff options
Diffstat (limited to 'vere/pkg/noun/jets/b/reel.c')
-rw-r--r-- | vere/pkg/noun/jets/b/reel.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/vere/pkg/noun/jets/b/reel.c b/vere/pkg/noun/jets/b/reel.c new file mode 100644 index 0000000..fe84f5a --- /dev/null +++ b/vere/pkg/noun/jets/b/reel.c @@ -0,0 +1,52 @@ +/// @file + +#include "jets/q.h" +#include "jets/w.h" + +#include "noun.h" + + u3_noun + u3qb_reel(u3_noun a, + u3_noun b) + { + u3_noun pro = u3k(u3x_at(u3x_sam_3, b)); + + if ( u3_nul != a ) { + u3a_pile pil_u; + u3j_site sit_u; + u3_noun* top; + u3_noun i, t = a; + + u3a_pile_prep(&pil_u, sizeof(u3_noun)); + + // push list onto road stack + // + do { + u3x_cell(t, &i, &t); + top = u3a_push(&pil_u); + *top = u3k(i); + } while ( u3_nul != t ); + + u3j_gate_prep(&sit_u, u3k(b)); + + while ( c3n == u3a_pile_done(&pil_u) ) { + pro = u3j_gate_slam(&sit_u, u3nc(*top, pro)); + top = u3a_pop(&pil_u); + } + + u3j_gate_lose(&sit_u); + } + + return pro; + } + u3_noun + u3wb_reel(u3_noun cor) + { + u3_noun a, b; + + if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ) { + return u3m_bail(c3__exit); + } else { + return u3qb_reel(a, b); + } + } |