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Add CharToLower and CharToUpper into util.s (#6126)

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This commit adds replacement of `::tolower` and `::toupper`.
Added CharToLower and CharToUpper routines reduce the number of cast operators
that required for correct usage of standard C/C++ `::tolower/toupper` routines.
This commit is contained in:
Vladimir Glavnyy
2020-09-21 23:31:27 +07:00
committed by GitHub
parent 8c67b5b129
commit fb4e1c34f9
7 changed files with 27 additions and 28 deletions
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6
src/idl_gen_rust.cpp
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@@ -29,14 +29,14 @@ std::string MakeSnakeCase(const std::string &in) {
std::string s;
for (size_t i = 0; i < in.length(); i++) {
if (i == 0) {
s += static_cast<char>(tolower(in[0]));
s += CharToLower(in[0]);
} else if (in[i] == '_') {
s += '_';
} else if (!islower(in[i])) {
// Prevent duplicate underscores for Upper_Snake_Case strings
// and UPPERCASE strings.
if (islower(in[i - 1])) { s += '_'; }
s += static_cast<char>(tolower(in[i]));
s += CharToLower(in[i]);
} else {
s += in[i];
}
@@ -48,7 +48,7 @@ std::string MakeSnakeCase(const std::string &in) {
std::string MakeUpper(const std::string &in) {
std::string s;
for (size_t i = 0; i < in.length(); i++) {
s += static_cast<char>(toupper(in[i]));
s += CharToUpper(in[i]);
}
return s;
}