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Implement CHARVAL function (#1701)

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This commit is contained in:
Rangi
2025-06-12 17:21:12 -04:00
committed by GitHub
parent fa9e29e4ce
commit 089e366ddc
7 changed files with 82 additions and 7 deletions
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20
src/asm/charmap.cpp
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@@ -189,7 +189,7 @@ bool charmap_HasChar(std::string const &mapping) {
return charmap.nodes[nodeIdx].isTerminal();
}
size_t charmap_CharSize(std::string const &mapping) {
static CharmapNode const *charmapEntry(std::string const &mapping) {
Charmap const &charmap = *currentCharmap;
size_t nodeIdx = 0;
@@ -197,12 +197,24 @@ size_t charmap_CharSize(std::string const &mapping) {
nodeIdx = charmap.nodes[nodeIdx].next[static_cast<uint8_t>(c)];
if (!nodeIdx) {
return 0;
return nullptr;
}
}
CharmapNode const &node = charmap.nodes[nodeIdx];
return node.isTerminal() ? node.value.size() : 0;
return &charmap.nodes[nodeIdx];
}
size_t charmap_CharSize(std::string const &mapping) {
CharmapNode const *node = charmapEntry(mapping);
return node && node->isTerminal() ? node->value.size() : 0;
}
std::optional<int32_t> charmap_CharValue(std::string const &mapping, size_t idx) {
if (CharmapNode const *node = charmapEntry(mapping);
node && node->isTerminal() && idx < node->value.size()) {
return node->value[idx];
}
return std::nullopt;
}
std::vector<int32_t> charmap_Convert(std::string const &input) {