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Replace all ctype.h functions with locale-independent ones

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Rangi
2025-10-03 12:52:24 -04:00
parent 268b586c9d
commit 13e85b5151
4 changed files with 22 additions and 12 deletions
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10
include/util.hpp
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@@ -4,7 +4,6 @@
#define RGBDS_UTIL_HPP
#include <algorithm>
#include <ctype.h> // toupper
#include <numeric>
#include <optional>
#include <stddef.h>
@@ -22,6 +21,7 @@ enum NumberBase {
BASE_16 = 16,
};
// Locale-independent character class functions
bool isNewline(int c);
bool isBlankSpace(int c);
bool isWhitespace(int c);
@@ -35,6 +35,10 @@ bool isOctDigit(int c);
bool isHexDigit(int c);
bool isAlphanumeric(int c);
// Locale-independent character transform functions
char toLower(char c);
char toUpper(char c);
bool startsIdentifier(int c);
bool continuesIdentifier(int c);
@@ -48,14 +52,14 @@ struct Uppercase {
// FNV-1a hash of an uppercased string
constexpr size_t operator()(std::string const &str) const {
return std::accumulate(RANGE(str), 0x811C9DC5, [](size_t hash, char c) {
return (hash ^ toupper(c)) * 16777619;
return (hash ^ toUpper(c)) * 16777619;
});
}
// Compare two strings without case-sensitivity (by converting to uppercase)
constexpr bool operator()(std::string const &str1, std::string const &str2) const {
return std::equal(RANGE(str1), RANGE(str2), [](char c1, char c2) {
return toupper(c1) == toupper(c2);
return toUpper(c1) == toUpper(c2);
});
}
};