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bx/include/bx/string.h
Branimir Karadžić d0e2be1755 Cleanup.
2018-02-22 15:45:42 -08:00

314 lines
8.9 KiB
C++

/*
* Copyright 2010-2018 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bx#license-bsd-2-clause
*/
#ifndef BX_STRING_H_HEADER_GUARD
#define BX_STRING_H_HEADER_GUARD
#include "allocator.h"
namespace bx
{
/// Units
struct Units
{
enum Enum //!< Units:
{
Kilo, //!< SI units
Kibi, //!< IEC prefix
};
};
/// Non-zero-terminated string view.
class StringView
{
public:
///
StringView();
///
StringView(const StringView& _rhs);
///
StringView& operator=(const char* _rhs);
///
StringView& operator=(const StringView& _rhs);
///
StringView(const char* _ptr, int32_t _len = INT32_MAX);
///
StringView(const char* _ptr, const char* _term);
///
template<typename Ty>
explicit StringView(const Ty& _container);
///
void set(const char* _ptr, int32_t _len = INT32_MAX);
///
void set(const char* _ptr, const char* _term);
///
void set(const StringView& _str);
///
template<typename Ty>
void set(const Ty& _container);
///
void clear();
///
const char* getPtr() const;
///
const char* getTerm() const;
///
bool isEmpty() const;
///
int32_t getLength() const;
protected:
const char* m_ptr;
int32_t m_len;
};
/// ASCII string
template<bx::AllocatorI** AllocatorT>
class StringT : public StringView
{
public:
///
StringT();
///
StringT(const StringT<AllocatorT>& _rhs);
///
StringT<AllocatorT>& operator=(const StringT<AllocatorT>& _rhs);
///
StringT(const StringView& _rhs);
///
~StringT();
///
void set(const StringView& _str);
///
void append(const StringView& _str);
///
void clear();
};
/// Retruns true if character is part of space set.
bool isSpace(char _ch);
/// Returns true if string view contains only space characters.
bool isSpace(const StringView& _str);
/// Retruns true if character is uppercase.
bool isUpper(char _ch);
/// Returns true if string view contains only uppercase characters.
bool isUpper(const StringView& _str);
/// Retruns true if character is lowercase.
bool isLower(char _ch);
/// Returns true if string view contains only lowercase characters.
bool isLower(const StringView& _str);
/// Returns true if character is part of alphabet set.
bool isAlpha(char _ch);
/// Retruns true if string view contains only alphabet characters.
bool isAlpha(const StringView& _str);
/// Returns true if character is part of numeric set.
bool isNumeric(char _ch);
/// Retruns true if string view contains only numeric characters.
bool isNumeric(const StringView& _str);
/// Returns true if character is part of alpha numeric set.
bool isAlphaNum(char _ch);
/// Returns true if string view contains only alpha-numeric characters.
bool isAlphaNum(const StringView& _str);
/// Returns true if character is part of hexadecimal set.
bool isHexNum(char _ch);
/// Returns true if string view contains only hexadecimal characters.
bool isHexNum(const StringView& _str);
/// Returns true if character is printable.
bool isPrint(char _ch);
/// Returns true if string vieww contains only printable characters.
bool isPrint(const StringView& _str);
/// Retruns lower case character representing _ch.
char toLower(char _ch);
/// Lower case string in place assuming length passed is valid.
void toLowerUnsafe(char* _inOutStr, int32_t _len);
/// Lower case string in place.
void toLower(char* _inOutStr, int32_t _max = INT32_MAX);
/// Returns upper case character representing _ch.
char toUpper(char _ch);
/// Upper case string in place assuming length passed is valid.
void toUpperUnsafe(char* _inOutStr, int32_t _len);
/// Uppre case string in place.
void toUpper(char* _inOutStr, int32_t _max = INT32_MAX);
/// String compare.
int32_t strCmp(const StringView& _lhs, const StringView& _rhs, int32_t _max = INT32_MAX);
/// Case insensitive string compare.
int32_t strCmpI(const StringView& _lhs, const StringView& _rhs, int32_t _max = INT32_MAX);
// Compare as strings holding indices/version numbers.
int32_t strCmpV(const StringView& _lhs, const StringView& _rhs, int32_t _max = INT32_MAX);
/// Get string length.
int32_t strLen(const char* _str, int32_t _max = INT32_MAX);
/// Get string length.
int32_t strLen(const StringView& _str, int32_t _max = INT32_MAX);
/// Copy _num characters from string _src to _dst buffer of maximum _dstSize capacity
/// including zero terminator. Copy will be terminated with '\0'.
int32_t strCopy(char* _dst, int32_t _dstSize, const StringView& _str, int32_t _num = INT32_MAX);
/// Concatinate string.
int32_t strCat(char* _dst, int32_t _dstSize, const StringView& _str, int32_t _num = INT32_MAX);
/// Find character in string. Limit search to _max characters.
const char* strFind(const StringView& _str, char _ch);
/// Find character in string in reverse. Limit search to _max characters.
const char* strRFind(const StringView& _str, char _ch);
/// Find substring in string. Limit search to _max characters.
const char* strFind(const StringView& _str, const StringView& _find, int32_t _num = INT32_MAX);
/// Find substring in string. Case insensitive. Limit search to _max characters.
const char* strFindI(const StringView& _str, const StringView& _find, int32_t _num = INT32_MAX);
/// Returns string view with characters _chars trimmed from left.
StringView strLTrim(const StringView& _str, const StringView& _chars);
/// Returns string view with characters _chars trimmed from right.
StringView strRTrim(const StringView& _str, const StringView& _chars);
/// Returns string view with characters _chars trimmed from left and right.
StringView strTrim(const StringView& _str, const StringView& _chars);
/// Find new line. Returns pointer after new line terminator.
const char* strnl(const char* _str);
/// Find end of line. Retuns pointer to new line terminator.
const char* streol(const char* _str);
/// Skip whitespace.
const char* strws(const char* _str);
/// Skip non-whitespace.
const char* strnws(const char* _str);
/// Returns pointer to first character after word.
const char* strSkipWord(const char* _str, int32_t _max = INT32_MAX);
/// Returns StringView of word or empty.
StringView strWord(const StringView& _str);
/// Find matching block.
const char* strmb(const char* _str, char _open, char _close);
// Normalize string to sane line endings.
void eolLF(char* _out, int32_t _size, const char* _str);
// Finds identifier.
const char* findIdentifierMatch(const char* _str, const char* _word);
/// Finds any identifier from NULL terminated array of identifiers.
const char* findIdentifierMatch(const char* _str, const char* _words[]);
/// Cross platform implementation of vsnprintf that returns number of
/// characters which would have been written to the final string if
/// enough space had been available.
int32_t vsnprintf(char* _out, int32_t _max, const char* _format, va_list _argList);
/// Cross platform implementation of snprintf that returns number of
/// characters which would have been written to the final string if
/// enough space had been available.
int32_t snprintf(char* _out, int32_t _max, const char* _format, ...);
/// Templatized snprintf.
template <typename Ty>
void stringPrintfVargs(Ty& _out, const char* _format, va_list _argList);
/// Templatized snprintf.
template <typename Ty>
void stringPrintf(Ty& _out, const char* _format, ...);
/// Replace all instances of substring.
template <typename Ty>
Ty replaceAll(const Ty& _str, const char* _from, const char* _to);
/// Convert size in bytes to human readable string kibi units.
int32_t prettify(char* _out, int32_t _count, uint64_t _value, Units::Enum _units = Units::Kibi);
/// Converts bool value to string.
int32_t toString(char* _out, int32_t _max, bool _value);
/// Converts double value to string.
int32_t toString(char* _out, int32_t _max, double _value);
/// Converts 32-bit integer value to string.
int32_t toString(char* _out, int32_t _max, int32_t _value, uint32_t _base = 10);
/// Converts 64-bit integer value to string.
int32_t toString(char* _out, int32_t _max, int64_t _value, uint32_t _base = 10);
/// Converts 32-bit unsigned integer value to string.
int32_t toString(char* _out, int32_t _max, uint32_t _value, uint32_t _base = 10);
/// Converts 64-bit unsigned integer value to string.
int32_t toString(char* _out, int32_t _max, uint64_t _value, uint32_t _base = 10);
/// Converts string to bool value.
bool fromString(bool* _out, const StringView& _str);
/// Converts string to float value.
bool fromString(float* _out, const StringView& _str);
/// Converts string to double value.
bool fromString(double* _out, const StringView& _str);
/// Converts string to 32-bit integer value.
bool fromString(int32_t* _out, const StringView& _str);
/// Converts string to 32-bit unsigned integer value.
bool fromString(uint32_t* _out, const StringView& _str);
} // namespace bx
#include "inline/string.inl"
#endif // BX_STRING_H_HEADER_GUARD