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Happy new year to the wonderful Godot community! We're starting a new decade with a well-established, non-profit, free and open source game engine, and tons of further improvements in the pipeline from hundreds of contributors. Godot will keep getting better, and we're looking forward to all the games that the community will keep developing and releasing with it.
254 lines
8.2 KiB
C++
254 lines
8.2 KiB
C++
/*************************************************************************/
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/* string_utils.cpp */
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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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 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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#include "string_utils.h"
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#include "core/os/file_access.h"
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#include <stdio.h>
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#include <stdlib.h>
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namespace {
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int sfind(const String &p_text, int p_from) {
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if (p_from < 0)
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return -1;
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int src_len = 2;
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int len = p_text.length();
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if (len == 0)
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return -1;
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const CharType *src = p_text.c_str();
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for (int i = p_from; i <= (len - src_len); i++) {
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bool found = true;
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for (int j = 0; j < src_len; j++) {
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int read_pos = i + j;
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ERR_FAIL_COND_V(read_pos >= len, -1);
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switch (j) {
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case 0:
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found = src[read_pos] == '%';
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break;
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case 1: {
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CharType c = src[read_pos];
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found = src[read_pos] == 's' || (c >= '0' && c <= '4');
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break;
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}
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default:
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found = false;
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}
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if (!found) {
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break;
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}
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}
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if (found)
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return i;
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}
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return -1;
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}
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} // namespace
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String sformat(const String &p_text, const Variant &p1, const Variant &p2, const Variant &p3, const Variant &p4, const Variant &p5) {
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if (p_text.length() < 2)
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return p_text;
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Array args;
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if (p1.get_type() != Variant::NIL) {
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args.push_back(p1);
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if (p2.get_type() != Variant::NIL) {
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args.push_back(p2);
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if (p3.get_type() != Variant::NIL) {
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args.push_back(p3);
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if (p4.get_type() != Variant::NIL) {
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args.push_back(p4);
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if (p5.get_type() != Variant::NIL) {
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args.push_back(p5);
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}
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}
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}
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}
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}
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String new_string;
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int findex = 0;
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int search_from = 0;
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int result = 0;
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while ((result = sfind(p_text, search_from)) >= 0) {
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CharType c = p_text[result + 1];
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int req_index = (c == 's' ? findex++ : c - '0');
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new_string += p_text.substr(search_from, result - search_from);
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new_string += args[req_index].operator String();
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search_from = result + 2;
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}
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new_string += p_text.substr(search_from, p_text.length() - search_from);
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return new_string;
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}
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#ifdef TOOLS_ENABLED
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bool is_csharp_keyword(const String &p_name) {
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// Reserved keywords
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return p_name == "abstract" || p_name == "as" || p_name == "base" || p_name == "bool" ||
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p_name == "break" || p_name == "byte" || p_name == "case" || p_name == "catch" ||
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p_name == "char" || p_name == "checked" || p_name == "class" || p_name == "const" ||
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p_name == "continue" || p_name == "decimal" || p_name == "default" || p_name == "delegate" ||
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p_name == "do" || p_name == "double" || p_name == "else" || p_name == "enum" ||
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p_name == "event" || p_name == "explicit" || p_name == "extern" || p_name == "false" ||
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p_name == "finally" || p_name == "fixed" || p_name == "float" || p_name == "for" ||
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p_name == "forech" || p_name == "goto" || p_name == "if" || p_name == "implicit" ||
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p_name == "in" || p_name == "int" || p_name == "interface" || p_name == "internal" ||
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p_name == "is" || p_name == "lock" || p_name == "long" || p_name == "namespace" ||
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p_name == "new" || p_name == "null" || p_name == "object" || p_name == "operator" ||
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p_name == "out" || p_name == "override" || p_name == "params" || p_name == "private" ||
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p_name == "protected" || p_name == "public" || p_name == "readonly" || p_name == "ref" ||
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p_name == "return" || p_name == "sbyte" || p_name == "sealed" || p_name == "short" ||
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p_name == "sizeof" || p_name == "stackalloc" || p_name == "static" || p_name == "string" ||
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p_name == "struct" || p_name == "switch" || p_name == "this" || p_name == "throw" ||
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p_name == "true" || p_name == "try" || p_name == "typeof" || p_name == "uint" || p_name == "ulong" ||
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p_name == "unchecked" || p_name == "unsafe" || p_name == "ushort" || p_name == "using" ||
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p_name == "virtual" || p_name == "volatile" || p_name == "void" || p_name == "while";
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}
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String escape_csharp_keyword(const String &p_name) {
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return is_csharp_keyword(p_name) ? "@" + p_name : p_name;
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}
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#endif
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Error read_all_file_utf8(const String &p_path, String &r_content) {
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PoolVector<uint8_t> sourcef;
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Error err;
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FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err);
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ERR_FAIL_COND_V_MSG(err != OK, err, "Cannot open file '" + p_path + "'.");
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int len = f->get_len();
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sourcef.resize(len + 1);
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PoolVector<uint8_t>::Write w = sourcef.write();
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int r = f->get_buffer(w.ptr(), len);
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f->close();
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memdelete(f);
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ERR_FAIL_COND_V(r != len, ERR_CANT_OPEN);
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w[len] = 0;
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String source;
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if (source.parse_utf8((const char *)w.ptr())) {
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ERR_FAIL_V(ERR_INVALID_DATA);
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}
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r_content = source;
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return OK;
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}
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// TODO: Move to variadic templates once we upgrade to C++11
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String str_format(const char *p_format, ...) {
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va_list list;
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va_start(list, p_format);
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String res = str_format(p_format, list);
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va_end(list);
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return res;
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}
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// va_copy was defined in the C99, but not in C++ standards before C++11.
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// When you compile C++ without --std=c++<XX> option, compilers still define
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// va_copy, otherwise you have to use the internal version (__va_copy).
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#if !defined(va_copy)
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#if defined(__GNUC__)
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#define va_copy(d, s) __va_copy((d), (s))
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#else
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#define va_copy(d, s) ((d) = (s))
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#endif
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#endif
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#if defined(MINGW_ENABLED) || defined(_MSC_VER) && _MSC_VER < 1900
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#define gd_vsnprintf(m_buffer, m_count, m_format, m_args_copy) vsnprintf_s(m_buffer, m_count, _TRUNCATE, m_format, m_args_copy)
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#define gd_vscprintf(m_format, m_args_copy) _vscprintf(m_format, m_args_copy)
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#else
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#define gd_vsnprintf(m_buffer, m_count, m_format, m_args_copy) vsnprintf(m_buffer, m_count, m_format, m_args_copy)
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#define gd_vscprintf(m_format, m_args_copy) vsnprintf(NULL, 0, p_format, m_args_copy)
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#endif
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String str_format(const char *p_format, va_list p_list) {
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char *buffer = str_format_new(p_format, p_list);
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String res(buffer);
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memdelete_arr(buffer);
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return res;
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}
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char *str_format_new(const char *p_format, ...) {
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va_list list;
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va_start(list, p_format);
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char *res = str_format_new(p_format, list);
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va_end(list);
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return res;
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}
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char *str_format_new(const char *p_format, va_list p_list) {
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va_list list;
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va_copy(list, p_list);
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int len = gd_vscprintf(p_format, list);
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va_end(list);
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len += 1; // for the trailing '/0'
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char *buffer(memnew_arr(char, len));
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va_copy(list, p_list);
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gd_vsnprintf(buffer, len, p_format, list);
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va_end(list);
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return buffer;
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}
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