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Some static table optimisations #21

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Some static table optimisations #21

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19d2c8a
Change _normalization_composition key type from u32string to uint64_t
samhocevar Jul 21, 2026
758fb02
Change _simple_case_mappings from unordered_map to sorted array
samhocevar Jul 21, 2026
ff55517
Change _special_case_mappings_default from unordered_multimap to unor…
samhocevar Jul 22, 2026
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10 changes: 5 additions & 5 deletions scripts/gen_tables.py
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Original file line number Diff line number Diff line change
Expand Up @@ -335,9 +335,9 @@ def items():
codePointPrev = codePoint
i += 1

print("const std::unordered_map<char32_t, const char32_t*> _simple_case_mappings = {")
for cp, upper, lower, title in items():
print('{ 0x%08X, U"\\U%08X\\U%08X\\U%08X" },' % (cp, upper, lower, title))
print("constexpr char32_t _simple_case_mappings[][4] = {")
for cp, upper, lower, title in sorted(items()):
print('{ 0x%08X, 0x%08X, 0x%08X, 0x%08X },' % (cp, upper, lower, title))
print("};")

#------------------------------------------------------------------------------
Expand Down Expand Up @@ -804,10 +804,10 @@ def items():
else:
exclusions.add(first)

print("const std::unordered_map<std::u32string, char32_t> _normalization_composition = {")
print("const std::unordered_map<uint64_t, char32_t> _normalization_composition = {")
for cp, codes in items():
if not cp in exclusions:
print('{ U"\\U%08X\\U%08X", 0x%08X },' % (codes[0], codes[1], cp))
print("{ UINT64_C(0x%08X'%08X), 0x%08X }," % (codes[0], codes[1], cp))
print("};")

#------------------------------------------------------------------------------
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