mirror of
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253 lines
8.1 KiB
C++
253 lines
8.1 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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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.get_data();
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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 == "foreach" || 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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uint64_t 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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uint64_t 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)
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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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