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scm: add support for labels + tests

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Add procedures 'label' (for a message) and all-labels (for a store).
This commit is contained in:
Dirk-Jan C. Binnema
2025-08-10 14:59:43 +03:00
parent 46fa4f2aa2
commit 910cec591f
5 changed files with 76 additions and 2 deletions
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22
scm/mu-scm-store.cc
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@ -178,6 +178,25 @@ subr_cc_store_mfind(SCM store_scm, SCM query_scm, SCM related_scm, SCM skip_dups
err.throw_scm();
}
static SCM
subr_cc_store_all_labels(SCM store_scm) try {
constexpr auto func{"cc-store-all-labels"};
const auto& store{to_store(store_scm, func, 1)};
const auto label_map{store.label_map()};
SCM labels{SCM_EOL};
for (const auto& [label, _n]: label_map)
labels = scm_append_x(
scm_list_2(labels,
scm_list_1(to_scm<std::string>(label))));
return labels;
} catch (const ScmError& err) {
err.throw_scm();
}
static void
init_subrs()
@ -192,7 +211,8 @@ init_subrs()
reinterpret_cast<scm_t_subr>(subr_cc_store_cfind));
scm_c_define_gsubr("cc-store-alist", 1/*req*/, 0/*opt*/, 0/*rst*/,
reinterpret_cast<scm_t_subr>(subr_cc_store_alist));
scm_c_define_gsubr("cc-store-all-labels", 1/*req*/, 0/*opt*/, 0/*rst*/,
reinterpret_cast<scm_t_subr>(subr_cc_store_all_labels));
#pragma GCC diagnostic pop
}