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Core: Integrate CharStringT

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This commit is contained in:
Thaddeus Crews 2024-10-22 17:08:05 -05:00
parent 533c616cb8
commit f232a295e2
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GPG key ID: 62181B86FE9E5D84
3 changed files with 80 additions and 172 deletions
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134
core/string/ustring.cpp
View file

@ -59,8 +59,6 @@ static _FORCE_INLINE_ char32_t lower_case(char32_t c) {
return (is_ascii_upper_case(c) ? (c + ('a' - 'A')) : c);
}
const char CharString::_null = 0;
const char16_t Char16String::_null = 0;
const char32_t String::_null = 0;
const char32_t String::_replacement_char = 0xfffd;
@ -92,48 +90,58 @@ bool select_word(const String &p_s, int p_col, int &r_beg, int &r_end) {
}
}
/*************************************************************************/
/* Char16String */
/*************************************************************************/
bool Char16String::operator<(const Char16String &p_right) const {
template <typename T>
bool CharStringT<T>::operator<(const CharStringT<T> &p_other) const {
if (length() == 0) {
return p_right.length() != 0;
return p_other.length() != 0;
}
return is_str_less(get_data(), p_right.get_data());
return is_str_less(get_data(), p_other.get_data());
}
Char16String &Char16String::operator+=(char16_t p_char) {
template <typename T>
bool CharStringT<T>::operator==(const CharStringT<T> &p_other) const {
if (length() != p_other.length()) {
return false;
}
if (length() == 0) {
return true;
}
size_t len = length();
const T *src = get_data();
const T *dst = p_other.get_data();
/* Compare char by char */
for (size_t i = 0; i < len; i++) {
if (src[i] != dst[i]) {
return false;
}
}
return true;
}
template <typename T>
CharStringT<T> &CharStringT<T>::operator+=(T p_char) {
const int lhs_len = length();
resize(lhs_len + 2);
char16_t *dst = ptrw();
T *dst = ptrw();
dst[lhs_len] = p_char;
dst[lhs_len + 1] = 0;
return *this;
}
void Char16String::operator=(const char16_t *p_cstr) {
copy_from(p_cstr);
}
const char16_t *Char16String::get_data() const {
if (size()) {
return &operator[](0);
} else {
return u"";
}
}
void Char16String::copy_from(const char16_t *p_cstr) {
template <typename T>
void CharStringT<T>::copy_from(const T *p_cstr) {
if (!p_cstr) {
resize(0);
return;
}
const char16_t *s = p_cstr;
const T *s = p_cstr;
for (; *s; s++) {
}
size_t len = s - p_cstr;
@ -145,81 +153,15 @@ void Char16String::copy_from(const char16_t *p_cstr) {
Error err = resize(++len); // include terminating null char
ERR_FAIL_COND_MSG(err != OK, "Failed to copy char16_t string.");
memcpy(ptrw(), p_cstr, len * sizeof(char16_t));
}
/*************************************************************************/
/* CharString */
/*************************************************************************/
bool CharString::operator<(const CharString &p_right) const {
if (length() == 0) {
return p_right.length() != 0;
}
return is_str_less(get_data(), p_right.get_data());
}
bool CharString::operator==(const CharString &p_right) const {
if (length() == 0) {
// True if both have length 0, false if only p_right has a length
return p_right.length() == 0;
} else if (p_right.length() == 0) {
// False due to unequal length
return false;
}
return strcmp(ptr(), p_right.ptr()) == 0;
}
CharString &CharString::operator+=(char p_char) {
const int lhs_len = length();
resize(lhs_len + 2);
char *dst = ptrw();
dst[lhs_len] = p_char;
dst[lhs_len + 1] = 0;
return *this;
}
void CharString::operator=(const char *p_cstr) {
copy_from(p_cstr);
}
const char *CharString::get_data() const {
if (size()) {
return &operator[](0);
} else {
return "";
}
}
void CharString::copy_from(const char *p_cstr) {
if (!p_cstr) {
resize(0);
return;
}
size_t len = strlen(p_cstr);
if (len == 0) {
resize(0);
return;
}
Error err = resize(++len); // include terminating null char
ERR_FAIL_COND_MSG(err != OK, "Failed to copy C-string.");
memcpy(ptrw(), p_cstr, len);
memcpy(ptrw(), p_cstr, len * sizeof(T));
}
/*************************************************************************/
/* String */
/*************************************************************************/
template class CharStringT<char>;
template class CharStringT<char16_t>;
template class CharStringT<char32_t>;
template class CharStringT<wchar_t>;
Error String::parse_url(String &r_scheme, String &r_host, int &r_port, String &r_path, String &r_fragment) const {
// Splits the URL into scheme, host, port, path, fragment. Strip credentials when present.

116
core/string/ustring.h
View file

@ -39,19 +39,19 @@
#include "core/typedefs.h"
#include "core/variant/array.h"
/*************************************************************************/
/* CharProxy */
/*************************************************************************/
class String;
template <typename T>
class CharStringT;
template <typename T>
class CharProxy {
friend class Char16String;
friend class CharString;
friend class String;
template <typename TS>
friend class CharStringT;
const int _index;
CowData<T> &_cowdata;
static const T _null = 0;
static constexpr T _null = 0;
_FORCE_INLINE_ CharProxy(const int &p_index, CowData<T> &p_cowdata) :
_index(p_index),
@ -83,92 +83,58 @@ public:
}
};
/*************************************************************************/
/* Char16String */
/*************************************************************************/
template <typename T>
class CharStringT {
friend class String;
class Char16String {
CowData<char16_t> _cowdata;
static const char16_t _null;
CowData<T> _cowdata;
static constexpr T _null = 0;
public:
_FORCE_INLINE_ char16_t *ptrw() { return _cowdata.ptrw(); }
_FORCE_INLINE_ const char16_t *ptr() const { return _cowdata.ptr(); }
_FORCE_INLINE_ T *ptrw() { return _cowdata.ptrw(); }
_FORCE_INLINE_ const T *ptr() const { return _cowdata.ptr(); }
_FORCE_INLINE_ int size() const { return _cowdata.size(); }
Error resize(int p_size) { return _cowdata.resize(p_size); }
_FORCE_INLINE_ Error resize(int p_size) { return _cowdata.resize(p_size); }
_FORCE_INLINE_ char16_t get(int p_index) const { return _cowdata.get(p_index); }
_FORCE_INLINE_ void set(int p_index, const char16_t &p_elem) { _cowdata.set(p_index, p_elem); }
_FORCE_INLINE_ const char16_t &operator[](int p_index) const {
_FORCE_INLINE_ T get(int p_index) const { return _cowdata.get(p_index); }
_FORCE_INLINE_ void set(int p_index, const T &p_elem) { _cowdata.set(p_index, p_elem); }
_FORCE_INLINE_ const T &operator[](int p_index) const {
if (unlikely(p_index == _cowdata.size())) {
return _null;
}
return _cowdata.get(p_index);
}
_FORCE_INLINE_ CharProxy<char16_t> operator[](int p_index) { return CharProxy<char16_t>(p_index, _cowdata); }
_FORCE_INLINE_ CharProxy<T> operator[](int p_index) { return CharProxy<T>(p_index, _cowdata); }
_FORCE_INLINE_ Char16String() {}
_FORCE_INLINE_ Char16String(const Char16String &p_str) { _cowdata._ref(p_str._cowdata); }
_FORCE_INLINE_ void operator=(const Char16String &p_str) { _cowdata._ref(p_str._cowdata); }
_FORCE_INLINE_ Char16String(const char16_t *p_cstr) { copy_from(p_cstr); }
_FORCE_INLINE_ CharStringT() {}
_FORCE_INLINE_ CharStringT(const CharStringT<T> &p_str) { _cowdata._ref(p_str._cowdata); }
_FORCE_INLINE_ void operator=(const CharStringT<T> &p_str) { _cowdata._ref(p_str._cowdata); }
_FORCE_INLINE_ CharStringT(const T *p_cstr) { copy_from(p_cstr); }
_FORCE_INLINE_ void operator=(const T *p_cstr) { copy_from(p_cstr); }
void operator=(const char16_t *p_cstr);
bool operator<(const Char16String &p_right) const;
Char16String &operator+=(char16_t p_char);
int length() const { return size() ? size() - 1 : 0; }
const char16_t *get_data() const;
operator const char16_t *() const { return get_data(); };
bool operator==(const CharStringT<T> &p_other) const;
_FORCE_INLINE_ bool operator!=(const CharStringT<T> &p_other) const { return !(*this == p_other); }
bool operator<(const CharStringT<T> &p_other) const;
CharStringT<T> &operator+=(T p_char);
_FORCE_INLINE_ int length() const { return size() ? size() - 1 : 0; }
_FORCE_INLINE_ const T *get_data() const {
if (size()) {
return &operator[](0);
}
return &_null;
}
_FORCE_INLINE_ operator const T *() const { return get_data(); };
protected:
void copy_from(const char16_t *p_cstr);
void copy_from(const T *p_cstr);
};
/*************************************************************************/
/* CharString */
/*************************************************************************/
class CharString {
CowData<char> _cowdata;
static const char _null;
public:
_FORCE_INLINE_ char *ptrw() { return _cowdata.ptrw(); }
_FORCE_INLINE_ const char *ptr() const { return _cowdata.ptr(); }
_FORCE_INLINE_ int size() const { return _cowdata.size(); }
Error resize(int p_size) { return _cowdata.resize(p_size); }
_FORCE_INLINE_ char get(int p_index) const { return _cowdata.get(p_index); }
_FORCE_INLINE_ void set(int p_index, const char &p_elem) { _cowdata.set(p_index, p_elem); }
_FORCE_INLINE_ const char &operator[](int p_index) const {
if (unlikely(p_index == _cowdata.size())) {
return _null;
}
return _cowdata.get(p_index);
}
_FORCE_INLINE_ CharProxy<char> operator[](int p_index) { return CharProxy<char>(p_index, _cowdata); }
_FORCE_INLINE_ CharString() {}
_FORCE_INLINE_ CharString(const CharString &p_str) { _cowdata._ref(p_str._cowdata); }
_FORCE_INLINE_ void operator=(const CharString &p_str) { _cowdata._ref(p_str._cowdata); }
_FORCE_INLINE_ CharString(const char *p_cstr) { copy_from(p_cstr); }
void operator=(const char *p_cstr);
bool operator<(const CharString &p_right) const;
bool operator==(const CharString &p_right) const;
CharString &operator+=(char p_char);
int length() const { return size() ? size() - 1 : 0; }
const char *get_data() const;
operator const char *() const { return get_data(); };
protected:
void copy_from(const char *p_cstr);
};
/*************************************************************************/
/* String */
/*************************************************************************/
using CharString = CharStringT<char>;
using Char16String = CharStringT<char16_t>;
using Char32String = CharStringT<char32_t>;
using CharWideString = CharStringT<wchar_t>;
struct StrRange {
const char32_t *c_str;

8
core/templates/cowdata.h
View file

@ -41,8 +41,8 @@
template <typename T>
class Vector;
class String;
class Char16String;
class CharString;
template <typename T>
class CharStringT;
template <typename T, typename V>
class VMap;
@ -59,8 +59,8 @@ class CowData {
template <typename TV>
friend class Vector;
friend class String;
friend class Char16String;
friend class CharString;
template <typename TS>
friend class CharStringT;
template <typename TV, typename VV>
friend class VMap;