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437 lines
15 KiB
C++
437 lines
15 KiB
C++
/*************************************************************************/
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/* ustring.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef USTRING_H
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#define USTRING_H
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#include "core/array.h"
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#include "core/cowdata.h"
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#include "core/typedefs.h"
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#include "core/vector.h"
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/**
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@author Juan Linietsky <reduzio@gmail.com>
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*/
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template <class T>
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class CharProxy {
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friend class CharString;
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friend class String;
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const int _index;
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CowData<T> &_cowdata;
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static const T _null = 0;
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_FORCE_INLINE_ CharProxy(const int &p_index, CowData<T> &cowdata) :
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_index(p_index),
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_cowdata(cowdata) {}
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public:
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_FORCE_INLINE_ operator T() const {
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if (unlikely(_index == _cowdata.size()))
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return _null;
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return _cowdata.get(_index);
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}
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_FORCE_INLINE_ const T *operator&() const {
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return _cowdata.ptr() + _index;
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}
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_FORCE_INLINE_ void operator=(const T &other) const {
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_cowdata.set(_index, other);
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}
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_FORCE_INLINE_ void operator=(const CharProxy<T> &other) const {
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_cowdata.set(_index, other.operator T());
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}
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};
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class CharString {
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CowData<char> _cowdata;
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static const char _null;
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public:
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_FORCE_INLINE_ char *ptrw() { return _cowdata.ptrw(); }
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_FORCE_INLINE_ const char *ptr() const { return _cowdata.ptr(); }
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_FORCE_INLINE_ int size() const { return _cowdata.size(); }
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Error resize(int p_size) { return _cowdata.resize(p_size); }
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_FORCE_INLINE_ char get(int p_index) const { return _cowdata.get(p_index); }
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_FORCE_INLINE_ void set(int p_index, const char &p_elem) { _cowdata.set(p_index, p_elem); }
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_FORCE_INLINE_ const char &operator[](int p_index) const {
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if (unlikely(p_index == _cowdata.size()))
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return _null;
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return _cowdata.get(p_index);
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}
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_FORCE_INLINE_ CharProxy<char> operator[](int p_index) { return CharProxy<char>(p_index, _cowdata); }
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_FORCE_INLINE_ CharString() {}
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_FORCE_INLINE_ CharString(const CharString &p_str) { _cowdata._ref(p_str._cowdata); }
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_FORCE_INLINE_ CharString operator=(const CharString &p_str) {
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_cowdata._ref(p_str._cowdata);
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return *this;
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}
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_FORCE_INLINE_ CharString(const char *p_cstr) { copy_from(p_cstr); }
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CharString &operator=(const char *p_cstr);
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bool operator<(const CharString &p_right) const;
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CharString &operator+=(char p_char);
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int length() const { return size() ? size() - 1 : 0; }
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const char *get_data() const;
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operator const char *() const { return get_data(); };
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protected:
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void copy_from(const char *p_cstr);
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};
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typedef wchar_t CharType;
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struct StrRange {
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const CharType *c_str;
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int len;
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StrRange(const CharType *p_c_str = NULL, int p_len = 0) {
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c_str = p_c_str;
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len = p_len;
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}
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};
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class String {
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CowData<CharType> _cowdata;
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static const CharType _null;
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void copy_from(const char *p_cstr);
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void copy_from(const CharType *p_cstr, const int p_clip_to = -1);
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void copy_from(const CharType &p_char);
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void copy_from_unchecked(const CharType *p_char, const int p_length);
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bool _base_is_subsequence_of(const String &p_string, bool case_insensitive) const;
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public:
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enum {
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npos = -1 ///<for "some" compatibility with std::string (npos is a huge value in std::string)
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};
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_FORCE_INLINE_ CharType *ptrw() { return _cowdata.ptrw(); }
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_FORCE_INLINE_ const CharType *ptr() const { return _cowdata.ptr(); }
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void remove(int p_index) { _cowdata.remove(p_index); }
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_FORCE_INLINE_ void clear() { resize(0); }
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_FORCE_INLINE_ CharType get(int p_index) const { return _cowdata.get(p_index); }
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_FORCE_INLINE_ void set(int p_index, const CharType &p_elem) { _cowdata.set(p_index, p_elem); }
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_FORCE_INLINE_ int size() const { return _cowdata.size(); }
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Error resize(int p_size) { return _cowdata.resize(p_size); }
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_FORCE_INLINE_ const CharType &operator[](int p_index) const {
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if (unlikely(p_index == _cowdata.size()))
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return _null;
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return _cowdata.get(p_index);
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}
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_FORCE_INLINE_ CharProxy<CharType> operator[](int p_index) { return CharProxy<CharType>(p_index, _cowdata); }
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bool operator==(const String &p_str) const;
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bool operator!=(const String &p_str) const;
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String operator+(const String &p_str) const;
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//String operator+(CharType p_char) const;
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String &operator+=(const String &);
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String &operator+=(CharType p_char);
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String &operator+=(const char *p_str);
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String &operator+=(const CharType *p_str);
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/* Compatibility Operators */
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void operator=(const char *p_str);
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void operator=(const CharType *p_str);
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bool operator==(const char *p_str) const;
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bool operator==(const CharType *p_str) const;
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bool operator==(const StrRange &p_str_range) const;
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bool operator!=(const char *p_str) const;
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bool operator!=(const CharType *p_str) const;
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bool operator<(const CharType *p_str) const;
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bool operator<(const char *p_str) const;
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bool operator<(const String &p_str) const;
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bool operator<=(const String &p_str) const;
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signed char casecmp_to(const String &p_str) const;
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signed char nocasecmp_to(const String &p_str) const;
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signed char naturalnocasecmp_to(const String &p_str) const;
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const CharType *c_str() const;
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/* standard size stuff */
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_FORCE_INLINE_ int length() const {
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int s = size();
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return s ? (s - 1) : 0; // length does not include zero
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}
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/* complex helpers */
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String substr(int p_from, int p_chars) const;
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int find(const String &p_str, int p_from = 0) const; ///< return <0 if failed
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int find(const char *p_str, int p_from = 0) const; ///< return <0 if failed
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int find_char(const CharType &p_char, int p_from = 0) const; ///< return <0 if failed
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int find_last(const String &p_str) const; ///< return <0 if failed
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int findn(const String &p_str, int p_from = 0) const; ///< return <0 if failed, case insensitive
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int rfind(const String &p_str, int p_from = -1) const; ///< return <0 if failed
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int rfindn(const String &p_str, int p_from = -1) const; ///< return <0 if failed, case insensitive
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int findmk(const Vector<String> &p_keys, int p_from = 0, int *r_key = NULL) const; ///< return <0 if failed
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bool match(const String &p_wildcard) const;
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bool matchn(const String &p_wildcard) const;
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bool begins_with(const String &p_string) const;
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bool begins_with(const char *p_string) const;
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bool ends_with(const String &p_string) const;
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bool is_enclosed_in(const String &p_string) const;
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bool is_subsequence_of(const String &p_string) const;
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bool is_subsequence_ofi(const String &p_string) const;
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bool is_quoted() const;
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Vector<String> bigrams() const;
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float similarity(const String &p_string) const;
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String format(const Variant &values, String placeholder = "{_}") const;
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String replace_first(const String &p_key, const String &p_with) const;
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String replace(const String &p_key, const String &p_with) const;
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String replace(const char *p_key, const char *p_with) const;
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String replacen(const String &p_key, const String &p_with) const;
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String insert(int p_at_pos, const String &p_string) const;
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String pad_decimals(int p_digits) const;
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String pad_zeros(int p_digits) const;
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String trim_prefix(const String &p_prefix) const;
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String trim_suffix(const String &p_suffix) const;
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String lpad(int min_length, const String &character = " ") const;
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String rpad(int min_length, const String &character = " ") const;
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String sprintf(const Array &values, bool *error) const;
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String quote(String quotechar = "\"") const;
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String unquote() const;
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static String num(double p_num, int p_decimals = -1);
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static String num_scientific(double p_num);
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static String num_real(double p_num);
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static String num_int64(int64_t p_num, int base = 10, bool capitalize_hex = false);
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static String num_uint64(uint64_t p_num, int base = 10, bool capitalize_hex = false);
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static String chr(CharType p_char);
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static String md5(const uint8_t *p_md5);
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static String hex_encode_buffer(const uint8_t *p_buffer, int p_len);
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bool is_numeric() const;
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double to_double() const;
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float to_float() const;
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int hex_to_int(bool p_with_prefix = true) const;
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int to_int() const;
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int64_t hex_to_int64(bool p_with_prefix = true) const;
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int64_t to_int64() const;
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static int to_int(const char *p_str, int p_len = -1);
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static double to_double(const char *p_str);
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static double to_double(const CharType *p_str, const CharType **r_end = NULL);
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static int64_t to_int(const CharType *p_str, int p_len = -1);
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String capitalize() const;
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String camelcase_to_underscore(bool lowercase = true) const;
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int get_slice_count(String p_splitter) const;
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String get_slice(String p_splitter, int p_slice) const;
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String get_slicec(CharType p_splitter, int p_slice) const;
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Vector<String> split(const String &p_splitter, bool p_allow_empty = true, int p_maxsplit = 0) const;
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Vector<String> rsplit(const String &p_splitter, bool p_allow_empty = true, int p_maxsplit = 0) const;
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Vector<String> split_spaces() const;
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Vector<float> split_floats(const String &p_splitter, bool p_allow_empty = true) const;
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Vector<float> split_floats_mk(const Vector<String> &p_splitters, bool p_allow_empty = true) const;
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Vector<int> split_ints(const String &p_splitter, bool p_allow_empty = true) const;
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Vector<int> split_ints_mk(const Vector<String> &p_splitters, bool p_allow_empty = true) const;
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String join(Vector<String> parts);
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static CharType char_uppercase(CharType p_char);
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static CharType char_lowercase(CharType p_char);
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String to_upper() const;
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String to_lower() const;
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String left(int p_pos) const;
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String right(int p_pos) const;
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String dedent() const;
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String strip_edges(bool left = true, bool right = true) const;
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String strip_escapes() const;
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String lstrip(const String &p_chars) const;
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String rstrip(const String &p_chars) const;
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String get_extension() const;
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String get_basename() const;
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String plus_file(const String &p_file) const;
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CharType ord_at(int p_idx) const;
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void erase(int p_pos, int p_chars);
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CharString ascii(bool p_allow_extended = false) const;
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CharString utf8() const;
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bool parse_utf8(const char *p_utf8, int p_len = -1); //return true on error
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static String utf8(const char *p_utf8, int p_len = -1);
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static uint32_t hash(const CharType *p_cstr, int p_len); /* hash the string */
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static uint32_t hash(const CharType *p_cstr); /* hash the string */
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static uint32_t hash(const char *p_cstr, int p_len); /* hash the string */
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static uint32_t hash(const char *p_cstr); /* hash the string */
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uint32_t hash() const; /* hash the string */
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uint64_t hash64() const; /* hash the string */
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String md5_text() const;
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String sha256_text() const;
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Vector<uint8_t> md5_buffer() const;
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Vector<uint8_t> sha256_buffer() const;
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_FORCE_INLINE_ bool empty() const { return length() == 0; }
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// path functions
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bool is_abs_path() const;
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bool is_rel_path() const;
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bool is_resource_file() const;
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String path_to(const String &p_path) const;
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String path_to_file(const String &p_path) const;
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String get_base_dir() const;
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String get_file() const;
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static String humanize_size(size_t p_size);
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String simplify_path() const;
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String xml_escape(bool p_escape_quotes = false) const;
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String xml_unescape() const;
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String http_escape() const;
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String http_unescape() const;
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String c_escape() const;
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String c_escape_multiline() const;
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String c_unescape() const;
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String json_escape() const;
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String word_wrap(int p_chars_per_line) const;
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String percent_encode() const;
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String percent_decode() const;
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bool is_valid_identifier() const;
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bool is_valid_integer() const;
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bool is_valid_float() const;
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bool is_valid_hex_number(bool p_with_prefix) const;
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bool is_valid_html_color() const;
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bool is_valid_ip_address() const;
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bool is_valid_filename() const;
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/**
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* The constructors must not depend on other overloads
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*/
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/* String(CharType p_char);*/
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_FORCE_INLINE_ String() {}
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_FORCE_INLINE_ String(const String &p_str) { _cowdata._ref(p_str._cowdata); }
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String operator=(const String &p_str) {
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_cowdata._ref(p_str._cowdata);
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return *this;
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}
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String(const char *p_str);
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String(const CharType *p_str, int p_clip_to_len = -1);
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String(const StrRange &p_range);
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};
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bool operator==(const char *p_chr, const String &p_str);
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String operator+(const char *p_chr, const String &p_str);
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String operator+(CharType p_chr, const String &p_str);
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String itos(int64_t p_val);
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String rtos(double p_val);
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String rtoss(double p_val); //scientific version
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struct NoCaseComparator {
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bool operator()(const String &p_a, const String &p_b) const {
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return p_a.nocasecmp_to(p_b) < 0;
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}
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};
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struct NaturalNoCaseComparator {
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bool operator()(const String &p_a, const String &p_b) const {
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return p_a.naturalnocasecmp_to(p_b) < 0;
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}
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};
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template <typename L, typename R>
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_FORCE_INLINE_ bool is_str_less(const L *l_ptr, const R *r_ptr) {
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while (true) {
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if (*l_ptr == 0 && *r_ptr == 0)
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return false;
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else if (*l_ptr == 0)
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return true;
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else if (*r_ptr == 0)
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return false;
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else if (*l_ptr < *r_ptr)
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return true;
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else if (*l_ptr > *r_ptr)
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return false;
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l_ptr++;
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r_ptr++;
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}
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CRASH_COND(true); // unreachable
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}
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/* end of namespace */
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//tool translate
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#ifdef TOOLS_ENABLED
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//gets parsed
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String TTR(const String &);
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//use for c strings
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#define TTRC(m_value) m_value
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//use to avoid parsing (for use later with C strings)
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#define TTRGET(m_value) TTR(m_value)
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#else
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#define TTR(m_val) (String())
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#define TTRCDEF(m_value) (m_value)
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#define TTRC(m_value) (m_value)
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#endif
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//tool or regular translate
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String RTR(const String &);
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bool is_symbol(CharType c);
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bool select_word(const String &p_s, int p_col, int &r_beg, int &r_end);
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#endif // USTRING_H
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