detangle utils (#21)

(cherry picked from commit 222cb8a23bd0fa8b901b1654ac5d6cc2ecb25a2e)

1 files changed, 191 insertions, 0 deletions

diff --git a/ZAPD/Utils/StringHelper.cpp b/ZAPD/Utils/StringHelper.cpp
new file mode 100644
index 0000000..c55580e
--- /dev/null
+++ b/ZAPD/Utils/StringHelper.cpp
@@ -0,0 +1,191 @@
+#include "StringHelper.h"
+
+#if (_MSC_VER)
+#pragma optimize("2", on)
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#ifndef _MSC_VER
+#define vsprintf_s vsprintf
+#endif
+
+std::vector<std::string> StringHelper::Split(std::string s, const std::string& delimiter)
+{
+    size_t pos_start = 0, pos_end, delim_len = delimiter.length();
+    std::string token;
+    std::vector<std::string> res;
+
+    while ((pos_end = s.find(delimiter, pos_start)) != std::string::npos) {
+        token = s.substr(pos_start, pos_end - pos_start);
+        pos_start = pos_end + delim_len;
+        res.push_back(token);
+    }
+
+    res.push_back(s.substr(pos_start));
+    return res;
+}
+
+std::vector<std::string_view> StringHelper::Split(std::string_view s, const std::string& delimiter)
+{
+    size_t pos_start = 0, pos_end, delim_len = delimiter.length();
+    std::string_view token;
+    std::vector<std::string_view> res;
+
+    while ((pos_end = s.find(delimiter, pos_start)) != std::string_view::npos)
+    {
+        token = s.substr(pos_start, pos_end - pos_start);
+        pos_start = pos_end + delim_len;
+        res.push_back(token);
+    }
+
+    res.push_back(s.substr(pos_start));
+    return res;
+}
+
+std::string StringHelper::Strip(std::string s, const std::string& delimiter)
+{
+	size_t pos = 0;
+	std::string token;
+
+	while ((pos = s.find(delimiter)) != std::string::npos)
+	{
+		token = s.substr(0, pos);
+		s.erase(pos, pos + delimiter.length());
+	}
+
+	return s;
+}
+
+std::string StringHelper::Replace(std::string str, const std::string& from,
+                                            const std::string& to)
+{
+	size_t start_pos = str.find(from);
+
+	while (start_pos != std::string::npos)
+	{
+		str.replace(start_pos, from.length(), to);
+		start_pos = str.find(from);
+	}
+
+	return str;
+}
+
+void StringHelper::ReplaceOriginal(std::string& str, const std::string& from, const std::string& to)
+{
+	size_t start_pos = str.find(from);
+
+	while (start_pos != std::string::npos)
+	{
+		str.replace(start_pos, from.length(), to);
+		start_pos = str.find(from);
+	}
+}
+
+bool StringHelper::StartsWith(const std::string& s, const std::string& input)
+{
+#if __cplusplus >= 202002L
+	return s.starts_with(input.c_str());
+#else
+	return s.rfind(input, 0) == 0;
+#endif
+}
+
+bool StringHelper::Contains(const std::string& s, const std::string& input)
+{
+	return s.find(input) != std::string::npos;
+}
+
+bool StringHelper::EndsWith(const std::string& s, const std::string& input)
+{
+	size_t inputLen = strlen(input.c_str());
+	return s.rfind(input) == (s.size() - inputLen);
+}
+
+std::string StringHelper::Sprintf(const char* format, ...)
+{
+	char buffer[32768];
+	// char buffer[2048];
+	std::string output;
+	va_list va;
+
+	va_start(va, format);
+	vsprintf_s(buffer, format, va);
+	va_end(va);
+
+	output = buffer;
+	return output;
+}
+
+std::string StringHelper::Implode(std::vector<std::string>& elements,
+                                            const char* const separator)
+{
+	return "";
+
+	// return std::accumulate(std::begin(elements), std::end(elements), std::string(),
+	//[separator](std::string& ss, std::string& s) {
+	// return ss.empty() ? s : ss + separator + s;
+	//});
+}
+
+int64_t StringHelper::StrToL(const std::string& str, int32_t base)
+{
+	return std::strtoull(str.c_str(), nullptr, base);
+}
+
+std::string StringHelper::BoolStr(bool b)
+{
+	return b ? "true" : "false";
+}
+
+bool StringHelper::HasOnlyDigits(const std::string& str)
+{
+	return std::all_of(str.begin(), str.end(), ::isdigit);
+}
+
+// Validate a hex string based on the c89 standard
+// https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Integer-Constants
+bool StringHelper::IsValidHex(std::string_view str)
+{
+	if (str.length() < 3)
+	{
+		return false;
+	}
+	if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
+	{
+		return std::all_of(str.begin() + 2, str.end(), ::isxdigit);
+	}
+	return false;
+}
+
+
+bool StringHelper::IsValidHex(const std::string& str)
+{
+	return IsValidHex(std::string_view(str.c_str()));
+}
+
+bool StringHelper::IsValidOffset(std::string_view str)
+{
+	if (str.length() == 1)
+	{
+		// 0 is a valid offset
+		return isdigit(str[0]);
+	}
+	return IsValidHex(str);
+}
+
+bool StringHelper::IsValidOffset(const std::string& str)
+{
+	if (str.length() == 1)
+	{
+		// 0 is a valid offset
+		return isdigit(str[0]);
+	}
+	return IsValidHex(str);
+}
+
+
+bool StringHelper::IEquals(const std::string& a, const std::string& b)
+{
+	return std::equal(a.begin(), a.end(), b.begin(), b.end(),
+	                    [](char a, char b) { return tolower(a) == tolower(b); });
+}