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60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
/* j/5/lune.c
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**
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*/
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#include "all.h"
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u3_noun
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u3qe_lune(u3_atom lub)
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{
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if (lub == 0) {
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return u3_nul;
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}
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{
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c3_w end_w = u3r_met(3, lub) - 1;
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c3_w pos_w = end_w;
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u3_noun lin = u3_nul;
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if (u3r_byte(pos_w, lub) != 10) {
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return u3m_error("noeol");
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}
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if (pos_w == 0) {
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if (u3r_byte(0, lub) == 10) {
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return u3nc(u3_nul, lin);
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} else {
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return u3m_error("noeol");
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}
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}
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while (--pos_w) {
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if (u3r_byte(pos_w, lub) == 10) {
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lin = u3nc(u3qc_cut(3, (pos_w + 1), (end_w - pos_w - 1), lub), lin);
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end_w = pos_w;
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}
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}
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if (u3r_byte(pos_w, lub) == 10) {
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return u3nc(u3_nul,
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u3nc(u3qc_cut(3, pos_w, (end_w - pos_w), lub), lin));
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}
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return u3nc(u3qc_cut(3, pos_w, (end_w - pos_w), lub), lin);
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}
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}
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u3_noun
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u3we_lune(u3_noun cor)
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{
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u3_noun lub;
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if ( (u3_none == (lub = u3r_at(u3x_sam, cor))) ||
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(c3n == u3ud(lub)) )
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{
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return u3m_bail(c3__fail);
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} else {
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return u3qe_lune(lub);
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}
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}
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