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Diffstat (limited to 'core/string/ustring.h')
| -rw-r--r-- | core/string/ustring.h | 539 |
1 files changed, 539 insertions, 0 deletions
diff --git a/core/string/ustring.h b/core/string/ustring.h new file mode 100644 index 0000000000..35475a2124 --- /dev/null +++ b/core/string/ustring.h @@ -0,0 +1,539 @@ +/*************************************************************************/ +/* ustring.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#ifndef USTRING_H +#define USTRING_H + +#include "core/templates/cowdata.h" +#include "core/templates/vector.h" +#include "core/typedefs.h" +#include "core/variant/array.h" + +/*************************************************************************/ +/* CharProxy */ +/*************************************************************************/ + +template <class T> +class CharProxy { + friend class Char16String; + friend class CharString; + friend class String; + + const int _index; + CowData<T> &_cowdata; + static const T _null = 0; + + _FORCE_INLINE_ CharProxy(const int &p_index, CowData<T> &cowdata) : + _index(p_index), + _cowdata(cowdata) {} + +public: + _FORCE_INLINE_ operator T() const { + if (unlikely(_index == _cowdata.size())) { + return _null; + } + + return _cowdata.get(_index); + } + + _FORCE_INLINE_ const T *operator&() const { + return _cowdata.ptr() + _index; + } + + _FORCE_INLINE_ void operator=(const T &other) const { + _cowdata.set(_index, other); + } + + _FORCE_INLINE_ void operator=(const CharProxy<T> &other) const { + _cowdata.set(_index, other.operator T()); + } +}; + +/*************************************************************************/ +/* Char16String */ +/*************************************************************************/ + +class Char16String { + CowData<char16_t> _cowdata; + static const char16_t _null; + +public: + _FORCE_INLINE_ char16_t *ptrw() { return _cowdata.ptrw(); } + _FORCE_INLINE_ const char16_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_ 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 { + 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_ Char16String() {} + _FORCE_INLINE_ Char16String(const Char16String &p_str) { _cowdata._ref(p_str._cowdata); } + _FORCE_INLINE_ Char16String &operator=(const Char16String &p_str) { + _cowdata._ref(p_str._cowdata); + return *this; + } + _FORCE_INLINE_ Char16String(const char16_t *p_cstr) { copy_from(p_cstr); } + + Char16String &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(); }; + +protected: + void copy_from(const char16_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_ CharString &operator=(const CharString &p_str) { + _cowdata._ref(p_str._cowdata); + return *this; + } + _FORCE_INLINE_ CharString(const char *p_cstr) { copy_from(p_cstr); } + + CharString &operator=(const char *p_cstr); + 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 */ +/*************************************************************************/ + +struct StrRange { + const char32_t *c_str; + int len; + + StrRange(const char32_t *p_c_str = nullptr, int p_len = 0) { + c_str = p_c_str; + len = p_len; + } +}; + +class String { + CowData<char32_t> _cowdata; + static const char32_t _null; + + void copy_from(const char *p_cstr); + void copy_from(const char *p_cstr, const int p_clip_to); + void copy_from(const wchar_t *p_cstr); + void copy_from(const wchar_t *p_cstr, const int p_clip_to); + void copy_from(const char32_t *p_cstr); + void copy_from(const char32_t *p_cstr, const int p_clip_to); + + void copy_from(const char32_t &p_char); + + void copy_from_unchecked(const char32_t *p_char, const int p_length); + + bool _base_is_subsequence_of(const String &p_string, bool case_insensitive) const; + int _count(const String &p_string, int p_from, int p_to, bool p_case_insensitive) const; + +public: + enum { + + npos = -1 ///<for "some" compatibility with std::string (npos is a huge value in std::string) + }; + + _FORCE_INLINE_ char32_t *ptrw() { return _cowdata.ptrw(); } + _FORCE_INLINE_ const char32_t *ptr() const { return _cowdata.ptr(); } + + void remove(int p_index) { _cowdata.remove(p_index); } + + _FORCE_INLINE_ void clear() { resize(0); } + + _FORCE_INLINE_ char32_t get(int p_index) const { return _cowdata.get(p_index); } + _FORCE_INLINE_ void set(int p_index, const char32_t &p_elem) { _cowdata.set(p_index, p_elem); } + _FORCE_INLINE_ int size() const { return _cowdata.size(); } + Error resize(int p_size) { return _cowdata.resize(p_size); } + + _FORCE_INLINE_ const char32_t &operator[](int p_index) const { + if (unlikely(p_index == _cowdata.size())) { + return _null; + } + + return _cowdata.get(p_index); + } + _FORCE_INLINE_ CharProxy<char32_t> operator[](int p_index) { return CharProxy<char32_t>(p_index, _cowdata); } + + bool operator==(const String &p_str) const; + bool operator!=(const String &p_str) const; + String operator+(const String &p_str) const; + + String &operator+=(const String &); + String &operator+=(char32_t p_char); + String &operator+=(const char *p_str); + String &operator+=(const wchar_t *p_str); + String &operator+=(const char32_t *p_str); + + /* Compatibility Operators */ + + void operator=(const char *p_str); + void operator=(const wchar_t *p_str); + void operator=(const char32_t *p_str); + + bool operator==(const char *p_str) const; + bool operator==(const wchar_t *p_str) const; + bool operator==(const char32_t *p_str) const; + bool operator==(const StrRange &p_str_range) const; + + bool operator!=(const char *p_str) const; + bool operator!=(const wchar_t *p_str) const; + bool operator!=(const char32_t *p_str) const; + + bool operator<(const char32_t *p_str) const; + bool operator<(const char *p_str) const; + bool operator<(const wchar_t *p_str) const; + + bool operator<(const String &p_str) const; + bool operator<=(const String &p_str) const; + bool operator>(const String &p_str) const; + bool operator>=(const String &p_str) const; + + signed char casecmp_to(const String &p_str) const; + signed char nocasecmp_to(const String &p_str) const; + signed char naturalnocasecmp_to(const String &p_str) const; + + const char32_t *get_data() const; + /* standard size stuff */ + + _FORCE_INLINE_ int length() const { + int s = size(); + return s ? (s - 1) : 0; // length does not include zero + } + + bool is_valid_string() const; + + /* complex helpers */ + String substr(int p_from, int p_chars = -1) const; + int find(const String &p_str, int p_from = 0) const; ///< return <0 if failed + int find(const char *p_str, int p_from = 0) const; ///< return <0 if failed + int find_char(const char32_t &p_char, int p_from = 0) const; ///< return <0 if failed + int findn(const String &p_str, int p_from = 0) const; ///< return <0 if failed, case insensitive + int rfind(const String &p_str, int p_from = -1) const; ///< return <0 if failed + int rfindn(const String &p_str, int p_from = -1) const; ///< return <0 if failed, case insensitive + int findmk(const Vector<String> &p_keys, int p_from = 0, int *r_key = nullptr) const; ///< return <0 if failed + bool match(const String &p_wildcard) const; + bool matchn(const String &p_wildcard) const; + bool begins_with(const String &p_string) const; + bool begins_with(const char *p_string) const; + bool ends_with(const String &p_string) const; + bool is_enclosed_in(const String &p_string) const; + bool is_subsequence_of(const String &p_string) const; + bool is_subsequence_ofi(const String &p_string) const; + bool is_quoted() const; + Vector<String> bigrams() const; + float similarity(const String &p_string) const; + String format(const Variant &values, String placeholder = "{_}") const; + String replace_first(const String &p_key, const String &p_with) const; + String replace(const String &p_key, const String &p_with) const; + String replace(const char *p_key, const char *p_with) const; + String replacen(const String &p_key, const String &p_with) const; + String repeat(int p_count) const; + String insert(int p_at_pos, const String &p_string) const; + String pad_decimals(int p_digits) const; + String pad_zeros(int p_digits) const; + String trim_prefix(const String &p_prefix) const; + String trim_suffix(const String &p_suffix) const; + String lpad(int min_length, const String &character = " ") const; + String rpad(int min_length, const String &character = " ") const; + String sprintf(const Array &values, bool *error) const; + String quote(String quotechar = "\"") const; + String unquote() const; + static String num(double p_num, int p_decimals = -1); + static String num_scientific(double p_num); + static String num_real(double p_num); + static String num_int64(int64_t p_num, int base = 10, bool capitalize_hex = false); + static String num_uint64(uint64_t p_num, int base = 10, bool capitalize_hex = false); + static String chr(char32_t p_char); + static String md5(const uint8_t *p_md5); + static String hex_encode_buffer(const uint8_t *p_buffer, int p_len); + bool is_numeric() const; + + double to_float() const; + int64_t hex_to_int(bool p_with_prefix = true) const; + int64_t bin_to_int(bool p_with_prefix = true) const; + int64_t to_int() const; + + static int64_t to_int(const char *p_str, int p_len = -1); + static int64_t to_int(const wchar_t *p_str, int p_len = -1); + static int64_t to_int(const char32_t *p_str, int p_len = -1, bool p_clamp = false); + + static double to_float(const char *p_str); + static double to_float(const wchar_t *p_str, const wchar_t **r_end = nullptr); + static double to_float(const char32_t *p_str, const char32_t **r_end = nullptr); + + String capitalize() const; + String camelcase_to_underscore(bool lowercase = true) const; + + String get_with_code_lines() const; + int get_slice_count(String p_splitter) const; + String get_slice(String p_splitter, int p_slice) const; + String get_slicec(char32_t p_splitter, int p_slice) const; + + Vector<String> split(const String &p_splitter, bool p_allow_empty = true, int p_maxsplit = 0) const; + Vector<String> rsplit(const String &p_splitter, bool p_allow_empty = true, int p_maxsplit = 0) const; + Vector<String> split_spaces() const; + Vector<float> split_floats(const String &p_splitter, bool p_allow_empty = true) const; + Vector<float> split_floats_mk(const Vector<String> &p_splitters, bool p_allow_empty = true) const; + Vector<int> split_ints(const String &p_splitter, bool p_allow_empty = true) const; + Vector<int> split_ints_mk(const Vector<String> &p_splitters, bool p_allow_empty = true) const; + + String join(Vector<String> parts) const; + + static char32_t char_uppercase(char32_t p_char); + static char32_t char_lowercase(char32_t p_char); + String to_upper() const; + String to_lower() const; + + int count(const String &p_string, int p_from = 0, int p_to = 0) const; + int countn(const String &p_string, int p_from = 0, int p_to = 0) const; + + String left(int p_pos) const; + String right(int p_pos) const; + String dedent() const; + String strip_edges(bool left = true, bool right = true) const; + String strip_escapes() const; + String lstrip(const String &p_chars) const; + String rstrip(const String &p_chars) const; + String get_extension() const; + String get_basename() const; + String plus_file(const String &p_file) const; + char32_t ord_at(int p_idx) const; + + void erase(int p_pos, int p_chars); + + CharString ascii(bool p_allow_extended = false) const; + CharString utf8() const; + bool parse_utf8(const char *p_utf8, int p_len = -1); //return true on error + static String utf8(const char *p_utf8, int p_len = -1); + + Char16String utf16() const; + bool parse_utf16(const char16_t *p_utf16, int p_len = -1); //return true on error + static String utf16(const char16_t *p_utf16, int p_len = -1); + + static uint32_t hash(const char32_t *p_cstr, int p_len); /* hash the string */ + static uint32_t hash(const char32_t *p_cstr); /* hash the string */ + static uint32_t hash(const wchar_t *p_cstr, int p_len); /* hash the string */ + static uint32_t hash(const wchar_t *p_cstr); /* hash the string */ + static uint32_t hash(const char *p_cstr, int p_len); /* hash the string */ + static uint32_t hash(const char *p_cstr); /* hash the string */ + uint32_t hash() const; /* hash the string */ + uint64_t hash64() const; /* hash the string */ + String md5_text() const; + String sha1_text() const; + String sha256_text() const; + Vector<uint8_t> md5_buffer() const; + Vector<uint8_t> sha1_buffer() const; + Vector<uint8_t> sha256_buffer() const; + + _FORCE_INLINE_ bool empty() const { return length() == 0; } + + // path functions + bool is_abs_path() const; + bool is_rel_path() const; + bool is_resource_file() const; + String path_to(const String &p_path) const; + String path_to_file(const String &p_path) const; + String get_base_dir() const; + String get_file() const; + static String humanize_size(uint64_t p_size); + String simplify_path() const; + + String xml_escape(bool p_escape_quotes = false) const; + String xml_unescape() const; + String http_escape() const; + String http_unescape() const; + String c_escape() const; + String c_escape_multiline() const; + String c_unescape() const; + String json_escape() const; + String word_wrap(int p_chars_per_line) const; + + String percent_encode() const; + String percent_decode() const; + + String property_name_encode() const; + + bool is_valid_identifier() const; + bool is_valid_integer() const; + bool is_valid_float() const; + bool is_valid_hex_number(bool p_with_prefix) const; + bool is_valid_html_color() const; + bool is_valid_ip_address() const; + bool is_valid_filename() const; + + /** + * The constructors must not depend on other overloads + */ + /* String(char32_t p_char);*/ + + _FORCE_INLINE_ String() {} + _FORCE_INLINE_ String(const String &p_str) { _cowdata._ref(p_str._cowdata); } + String &operator=(const String &p_str) { + _cowdata._ref(p_str._cowdata); + return *this; + } + + Vector<uint8_t> to_ascii_buffer() const; + Vector<uint8_t> to_utf8_buffer() const; + Vector<uint8_t> to_utf16_buffer() const; + Vector<uint8_t> to_utf32_buffer() const; + + String(const char *p_str); + String(const wchar_t *p_str); + String(const char32_t *p_str); + String(const char *p_str, int p_clip_to_len); + String(const wchar_t *p_str, int p_clip_to_len); + String(const char32_t *p_str, int p_clip_to_len); + String(const StrRange &p_range); +}; + +bool operator==(const char *p_chr, const String &p_str); +bool operator==(const wchar_t *p_chr, const String &p_str); +bool operator!=(const char *p_chr, const String &p_str); +bool operator!=(const wchar_t *p_chr, const String &p_str); + +String operator+(const char *p_chr, const String &p_str); +String operator+(const wchar_t *p_chr, const String &p_str); +String operator+(char32_t p_chr, const String &p_str); + +String itos(int64_t p_val); +String uitos(uint64_t p_val); +String rtos(double p_val); +String rtoss(double p_val); //scientific version + +struct NoCaseComparator { + bool operator()(const String &p_a, const String &p_b) const { + return p_a.nocasecmp_to(p_b) < 0; + } +}; + +struct NaturalNoCaseComparator { + bool operator()(const String &p_a, const String &p_b) const { + return p_a.naturalnocasecmp_to(p_b) < 0; + } +}; + +template <typename L, typename R> +_FORCE_INLINE_ bool is_str_less(const L *l_ptr, const R *r_ptr) { + while (true) { + const char32_t l = *l_ptr; + const char32_t r = *r_ptr; + + if (l == 0 && r == 0) { + return false; + } else if (l == 0) { + return true; + } else if (r == 0) { + return false; + } else if (l < r) { + return true; + } else if (l > r) { + return false; + } + + l_ptr++; + r_ptr++; + } +} + +/* end of namespace */ + +// Tool translate (TTR and variants) for the editor UI, +// and doc translate for the class reference (DTR). +#ifdef TOOLS_ENABLED +// Gets parsed. +String TTR(const String &p_text, const String &p_context = ""); +String TTRN(const String &p_text, const String &p_text_plural, int p_n, const String &p_context = ""); +String DTR(const String &p_text, const String &p_context = ""); +String DTRN(const String &p_text, const String &p_text_plural, int p_n, const String &p_context = ""); +// Use for C strings. +#define TTRC(m_value) (m_value) +// Use to avoid parsing (for use later with C strings). +#define TTRGET(m_value) TTR(m_value) + +#else +#define TTR(m_value) (String()) +#define TTRN(m_value) (String()) +#define DTR(m_value) (String()) +#define DTRN(m_value) (String()) +#define TTRC(m_value) (m_value) +#define TTRGET(m_value) (m_value) +#endif + +// Runtime translate for the public node API. +String RTR(const String &p_text, const String &p_context = ""); +String RTRN(const String &p_text, const String &p_text_plural, int p_n, const String &p_context = ""); + +bool is_symbol(char32_t c); +bool select_word(const String &p_s, int p_col, int &r_beg, int &r_end); + +#endif // USTRING_H |