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// StringUtils.h
// Interfaces to various string helper functions
#pragma once
#include <string>
#include <limits>
typedef std::string AString;
typedef std::vector<AString> AStringVector;
typedef std::list<AString> AStringList;
/** Add the formated string to the existing data in the string */
extern AString & AppendVPrintf(AString & str, const char * format, va_list args) FORMATSTRING(2, 0);
/// Output the formatted text into the string
extern AString & Printf (AString & str, const char * format, ...) FORMATSTRING(2, 3);
/// Output the formatted text into string, return string by value
extern AString Printf(const char * format, ...) FORMATSTRING(1, 2);
/// Add the formatted string to the existing data in the string
extern AString & AppendPrintf (AString & str, const char * format, ...) FORMATSTRING(2, 3);
/// Split the string at any of the listed delimiters, return as a stringvector
extern AStringVector StringSplit(const AString & str, const AString & delim);
/// Split the string at any of the listed delimiters and trim each value, return as a stringvector
extern AStringVector StringSplitAndTrim(const AString & str, const AString & delim);
/// Trime whitespace at both ends of the string
extern AString TrimString(const AString & str); // tolua_export
/// In-place string conversion to uppercase; returns the same string
extern AString & InPlaceUppercase(AString & s);
/// In-place string conversion to lowercase; returns the same string
extern AString & InPlaceLowercase(AString & s);
/** Returns an upper-cased copy of the string */
extern AString StrToUpper(const AString & s);
/** Returns a lower-cased copy of the string */
extern AString StrToLower(const AString & s);
/// Case-insensitive string comparison; returns 0 if the strings are the same
extern int NoCaseCompare(const AString & s1, const AString & s2); // tolua_export
/// Case-insensitive string comparison that returns a rating of equal-ness between [0 - s1.length()]
extern size_t RateCompareString(const AString & s1, const AString & s2);
/// Replaces *each* occurence of iNeedle in iHayStack with iReplaceWith
extern void ReplaceString(AString & iHayStack, const AString & iNeedle, const AString & iReplaceWith); // tolua_export
/// Converts a stream of BE shorts into UTF-8 string; returns a ref to a_UTF8
extern AString & RawBEToUTF8(const char * a_RawData, size_t a_NumShorts, AString & a_UTF8);
/// Converts a UTF-8 string into a UTF-16 BE string, packing that back into AString; return a ref to a_UTF16
extern AString & UTF8ToRawBEUTF16(const char * a_UTF8, size_t a_UTF8Length, AString & a_UTF16);
/// Creates a nicely formatted HEX dump of the given memory block. Max a_BytesPerLine is 120
extern AString & CreateHexDump(AString & a_Out, const void * a_Data, size_t a_Size, size_t a_BytesPerLine);
/// Returns a copy of a_Message with all quotes and backslashes escaped by a backslash
extern AString EscapeString(const AString & a_Message); // tolua_export
/// Removes all control codes used by MC for colors and styles
extern AString StripColorCodes(const AString & a_Message); // tolua_export
/// URL-Decodes the given string, replacing all "%HH" into the correct characters. Invalid % sequences are left intact
extern AString URLDecode(const AString & a_String); // Cannot export to Lua automatically - would generated an extra return value
/// Replaces all occurrences of char a_From inside a_String with char a_To.
extern AString ReplaceAllCharOccurrences(const AString & a_String, char a_From, char a_To); // Needn't export to Lua, since Lua doesn't have chars anyway
/// Decodes a Base64-encoded string into the raw data
extern AString Base64Decode(const AString & a_Base64String); // Exported manually due to embedded NULs and extra parameter
/// Encodes a string into Base64
extern AString Base64Encode(const AString & a_Input); // Exported manually due to embedded NULs and extra parameter
/// Reads two bytes from the specified memory location and interprets them as BigEndian short
extern short GetBEShort(const char * a_Mem);
/// Reads four bytes from the specified memory location and interprets them as BigEndian int
extern int GetBEInt(const char * a_Mem);
/// Writes four bytes to the specified memory location so that they interpret as BigEndian int
extern void SetBEInt(char * a_Mem, Int32 a_Value);
/// Parses any integer type. Checks bounds and returns errors out of band.
template <class T>
bool StringToInteger(const AString& a_str, T& a_Num)
{
size_t i = 0;
bool positive = true;
T result = 0;
if (a_str[0] == '+')
{
i++;
}
else if (a_str[0] == '-')
{
i++;
positive = false;
}
if (positive)
{
for (size_t size = a_str.size(); i < size; i++)
{
if ((a_str[i] < '0') || (a_str[i] > '9'))
{
return false;
}
if (std::numeric_limits<T>::max() / 10 < result)
{
return false;
}
result *= 10;
T digit = a_str[i] - '0';
if (std::numeric_limits<T>::max() - digit < result)
{
return false;
}
result += digit;
}
}
else
{
for (size_t size = a_str.size(); i < size; i++)
{
if ((a_str[i] < '0') || (a_str[i] > '9'))
{
return false;
}
if (std::numeric_limits<T>::min() / 10 > result)
{
return false;
}
result *= 10;
T digit = a_str[i] - '0';
if (std::numeric_limits<T>::min() + digit > result)
{
return false;
}
result -= digit;
}
}
a_Num = result;
return true;
}
// If you have any other string helper functions, declare them here
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