rm some uses of Boost

Base/Util/StringUtil.cpp

@@ -14,9 +14,12 @@
 
 #include "Base/Util/StringUtil.h"
 #include "Base/Util/Assert.h"
-#include <boost/algorithm/string.hpp>
+#include <algorithm>
+#include <cctype>
 #include <cerrno>
 #include <charconv>
+#include <ranges>
+#include <regex>
 
 //! Returns token vector obtained by splitting string at delimiters.
 std::vector<std::string> Base::String::split(const std::string& text, const std::string& delimiter)
@@ -24,15 +27,29 @@ std::vector<std::string> Base::String::split(const std::string& text, const std:
     if (text.empty())
         return {};
     std::vector<std::string> result;
-    boost::split(result, text, boost::is_any_of(delimiter));
+    size_t pos = 0;
+    while (pos != std::string::npos) {
+        size_t next_pos = text.find(delimiter, pos);
+        if (next_pos == std::string::npos) {
+            result.push_back(text.substr(pos));
+            break;
+        }
+        result.push_back(text.substr(pos, next_pos - pos));
+        pos = next_pos + delimiter.length();
+    }
     return result;
 }
 
 void Base::String::replaceItemsFromString(std::string& text, const std::vector<std::string>& items,
                                           const std::string& replacement)
 {
-    for (const auto& item : items)
-        boost::replace_all(text, item, replacement);
+    for (const auto& item : items) {
+        size_t pos = 0;
+        while ((pos = text.find(item, pos)) != std::string::npos) {
+            text.replace(pos, item.length(), replacement);
+            pos += replacement.length();
+        }
+    }
 }
 
 std::string Base::String::join(const std::vector<std::string>& joinable, const std::string& joint)
@@ -49,7 +66,7 @@ std::string Base::String::join(const std::vector<std::string>& joinable, const s
 
 std::string Base::String::to_lower(std::string text)
 {
-    boost::to_lower(text);
+    std::ranges::transform(text, text.begin(), [](unsigned char c) { return std::tolower(c); });
     return text;
 }