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[Config] Use std::less<> for std::map<...>

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Reduces amount of string copies
[Utilities] fmt::replace_all: avoid creation of temporary strings
This commit is contained in:
DH 2021-11-28 09:30:41 +02:00 • committed by Nekotekina
parent 2981867375
commit cccfb89aa0
14 changed files with 80 additions and 62 deletions
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23
Utilities/StrUtil.h
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@ -6,6 +6,8 @@
#include <functional>
#include <string_view>
#include "util/types.hpp"
#ifdef _WIN32
std::string wchar_to_utf8(const wchar_t *src);
std::string wchar_path_to_ansi_path(const std::wstring& src);
@ -22,17 +24,17 @@ inline void strcpy_trunc(D& dst, const T& src)
}
// Convert string to signed integer
bool try_to_int64(s64* out, const std::string& value, s64 min, s64 max);
bool try_to_int64(s64* out, std::string_view value, s64 min, s64 max);
// Convert string to unsigned integer
bool try_to_uint64(u64* out, const std::string& value, u64 min, u64 max);
bool try_to_uint64(u64* out, std::string_view value, u64 min, u64 max);
namespace fmt
{
std::string replace_all(std::string_view src, std::string_view from, std::string_view to, usz count = -1);
template <usz list_size>
std::string replace_all(std::string src, const std::pair<std::string, std::string> (&list)[list_size])
std::string replace_all(std::string src, const std::pair<std::string_view, std::string> (&list)[list_size])
{
for (usz pos = 0; pos < src.length(); ++pos)
{
@ -41,11 +43,14 @@ namespace fmt
const usz comp_length = list[i].first.length();
if (src.length() - pos < comp_length)
{
continue;
}
if (src.substr(pos, comp_length) == list[i].first)
{
src = (pos ? src.substr(0, pos) + list[i].second : list[i].second) + src.substr(pos + comp_length);
src.erase(pos, comp_length);
src.insert(pos, list[i].second.data(), list[i].second.length());
pos += list[i].second.length() - 1;
break;
}
@ -56,7 +61,7 @@ namespace fmt
}
template <usz list_size>
std::string replace_all(std::string src, const std::pair<std::string, std::function<std::string()>> (&list)[list_size])
std::string replace_all(std::string src, const std::pair<std::string_view, std::function<std::string()>> (&list)[list_size])
{
for (usz pos = 0; pos < src.length(); ++pos)
{
@ -65,12 +70,16 @@ namespace fmt
const usz comp_length = list[i].first.length();
if (src.length() - pos < comp_length)
{
continue;
}
if (src.substr(pos, comp_length) == list[i].first)
{
src = (pos ? src.substr(0, pos) + list[i].second() : list[i].second()) + src.substr(pos + comp_length);
pos += list[i].second().length() - 1;
src.erase(pos, comp_length);
auto replacement = list[i].second();
src.insert(pos, replacement);
pos += replacement.length() - 1;
break;
}
}