/*************************************************************************/ /* variant_parser.cpp */ /*************************************************************************/ /* 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. */ /*************************************************************************/ #include "variant_parser.h" #include "core/io/resource_loader.h" #include "core/os/input_event.h" #include "core/os/keyboard.h" #include "core/string_buffer.h" CharType VariantParser::StreamFile::get_char() { return f->get_8(); } bool VariantParser::StreamFile::is_utf8() const { return true; } bool VariantParser::StreamFile::is_eof() const { return f->eof_reached(); } CharType VariantParser::StreamString::get_char() { if (pos > s.length()) { return 0; } else if (pos == s.length()) { // You need to try to read again when you have reached the end for EOF to be reported, // so this works the same as files (like StreamFile does) pos++; return 0; } else { return s[pos++]; } } bool VariantParser::StreamString::is_utf8() const { return false; } bool VariantParser::StreamString::is_eof() const { return pos > s.length(); } ///////////////////////////////////////////////////////////////////////////////////////////////// const char *VariantParser::tk_name[TK_MAX] = { "'{'", "'}'", "'['", "']'", "'('", "')'", "identifier", "string", "string_name", "number", "color", "':'", "','", "'.'", "'='", "EOF", "ERROR" }; Error VariantParser::get_token(Stream *p_stream, Token &r_token, int &line, String &r_err_str) { bool string_name = false; while (true) { CharType cchar; if (p_stream->saved) { cchar = p_stream->saved; p_stream->saved = 0; } else { cchar = p_stream->get_char(); if (p_stream->is_eof()) { r_token.type = TK_EOF; return OK; } } switch (cchar) { case '\n': { line++; break; }; case 0: { r_token.type = TK_EOF; return OK; } break; case '{': { r_token.type = TK_CURLY_BRACKET_OPEN; return OK; }; case '}': { r_token.type = TK_CURLY_BRACKET_CLOSE; return OK; }; case '[': { r_token.type = TK_BRACKET_OPEN; return OK; }; case ']': { r_token.type = TK_BRACKET_CLOSE; return OK; }; case '(': { r_token.type = TK_PARENTHESIS_OPEN; return OK; }; case ')': { r_token.type = TK_PARENTHESIS_CLOSE; return OK; }; case ':': { r_token.type = TK_COLON; return OK; }; case ';': { while (true) { CharType ch = p_stream->get_char(); if (p_stream->is_eof()) { r_token.type = TK_EOF; return OK; } if (ch == '\n') break; } break; }; case ',': { r_token.type = TK_COMMA; return OK; }; case '.': { r_token.type = TK_PERIOD; return OK; }; case '=': { r_token.type = TK_EQUAL; return OK; }; case '#': { StringBuffer<> color_str; color_str += '#'; while (true) { CharType ch = p_stream->get_char(); if (p_stream->is_eof()) { r_token.type = TK_EOF; return OK; } else if ((ch >= '0' && ch <= '9') || (ch >= 'a' && ch <= 'f') || (ch >= 'A' && ch <= 'F')) { color_str += ch; } else { p_stream->saved = ch; break; } } r_token.value = Color::html(color_str.as_string()); r_token.type = TK_COLOR; return OK; }; case '@': { cchar = p_stream->get_char(); if (cchar != '"') { r_err_str = "Expected '\"' after '@'"; r_token.type = TK_ERROR; return ERR_PARSE_ERROR; } string_name = true; FALLTHROUGH; } case '"': { String str; while (true) { CharType ch = p_stream->get_char(); if (ch == 0) { r_err_str = "Unterminated String"; r_token.type = TK_ERROR; return ERR_PARSE_ERROR; } else if (ch == '"') { break; } else if (ch == '\\') { //escaped characters... CharType next = p_stream->get_char(); if (next == 0) { r_err_str = "Unterminated String"; r_token.type = TK_ERROR; return ERR_PARSE_ERROR; } CharType res = 0; switch (next) { case 'b': res = 8; break; case 't': res = 9; break; case 'n': res = 10; break; case 'f': res = 12; break; case 'r': res = 13; break; case 'u': { //hex number for (int j = 0; j < 4; j++) { CharType c = p_stream->get_char(); if (c == 0) { r_err_str = "Unterminated String"; r_token.type = TK_ERROR; return ERR_PARSE_ERROR; } if (!((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'))) { r_err_str = "Malformed hex constant in string"; r_token.type = TK_ERROR; return ERR_PARSE_ERROR; } CharType v; if (c >= '0' && c <= '9') { v = c - '0'; } else if (c >= 'a' && c <= 'f') { v = c - 'a'; v += 10; } else if (c >= 'A' && c <= 'F') { v = c - 'A'; v += 10; } else { ERR_PRINT("Bug parsing hex constant."); v = 0; } res <<= 4; res |= v; } } break; default: { res = next; } break; } str += res; } else { if (ch == '\n') line++; str += ch; } } if (p_stream->is_utf8()) { str.parse_utf8(str.ascii(true).get_data()); } if (string_name) { r_token.type = TK_STRING_NAME; r_token.value = StringName(str); string_name = false; //reset } else { r_token.type = TK_STRING; r_token.value = str; } return OK; } break; default: { if (cchar <= 32) { break; } if (cchar == '-' || (cchar >= '0' && cchar <= '9')) { //a number StringBuffer<> num; #define READING_SIGN 0 #define READING_INT 1 #define READING_DEC 2 #define READING_EXP 3 #define READING_DONE 4 int reading = READING_INT; if (cchar == '-') { num += '-'; cchar = p_stream->get_char(); } CharType c = cchar; bool exp_sign = false; bool exp_beg = false; bool is_float = false; while (true) { switch (reading) { case READING_INT: { if (c >= '0' && c <= '9') { //pass } else if (c == '.') { reading = READING_DEC; is_float = true; } else if (c == 'e') { reading = READING_EXP; is_float = true; } else { reading = READING_DONE; } } break; case READING_DEC: { if (c >= '0' && c <= '9') { } else if (c == 'e') { reading = READING_EXP; } else { reading = READING_DONE; } } break; case READING_EXP: { if (c >= '0' && c <= '9') { exp_beg = true; } else if ((c == '-' || c == '+') && !exp_sign && !exp_beg) { exp_sign = true; } else { reading = READING_DONE; } } break; } if (reading == READING_DONE) break; num += c; c = p_stream->get_char(); } p_stream->saved = c; r_token.type = TK_NUMBER; if (is_float) r_token.value = num.as_double(); else r_token.value = num.as_int(); return OK; } else if ((cchar >= 'A' && cchar <= 'Z') || (cchar >= 'a' && cchar <= 'z') || cchar == '_') { StringBuffer<> id; bool first = true; while ((cchar >= 'A' && cchar <= 'Z') || (cchar >= 'a' && cchar <= 'z') || cchar == '_' || (!first && cchar >= '0' && cchar <= '9')) { id += cchar; cchar = p_stream->get_char(); first = false; } p_stream->saved = cchar; r_token.type = TK_IDENTIFIER; r_token.value = id.as_string(); return OK; } else { r_err_str = "Unexpected character."; r_token.type = TK_ERROR; return ERR_PARSE_ERROR; } } } } r_token.type = TK_ERROR; return ERR_PARSE_ERROR; } Error VariantParser::_parse_enginecfg(Stream *p_stream, Vector &strings, int &line, String &r_err_str) { Token token; get_token(p_stream, token, line, r_err_str); if (token.type != TK_PARENTHESIS_OPEN) { r_err_str = "Expected '(' in old-style project.godot construct"; return ERR_PARSE_ERROR; } String accum; while (true) { CharType c = p_stream->get_char(); if (p_stream->is_eof()) { r_err_str = "Unexpected EOF while parsing old-style project.godot construct"; return ERR_PARSE_ERROR; } if (c == ',') { strings.push_back(accum.strip_edges()); accum = String(); } else if (c == ')') { strings.push_back(accum.strip_edges()); return OK; } else if (c == '\n') { line++; } } } template Error VariantParser::_parse_construct(Stream *p_stream, Vector &r_construct, int &line, String &r_err_str) { Token token; get_token(p_stream, token, line, r_err_str); if (token.type != TK_PARENTHESIS_OPEN) { r_err_str = "Expected '(' in constructor"; return ERR_PARSE_ERROR; } bool first = true; while (true) { if (!first) { get_token(p_stream, token, line, r_err_str); if (token.type == TK_COMMA) { //do none } else if (token.type == TK_PARENTHESIS_CLOSE) { break; } else { r_err_str = "Expected ',' or ')' in constructor"; return ERR_PARSE_ERROR; } } get_token(p_stream, token, line, r_err_str); if (first && token.type == TK_PARENTHESIS_CLOSE) { break; } else if (token.type != TK_NUMBER) { r_err_str = "Expected float in constructor"; return ERR_PARSE_ERROR; } r_construct.push_back(token.value); first = false; } return OK; } Error VariantParser::parse_value(Token &token, Variant &value, Stream *p_stream, int &line, String &r_err_str, ResourceParser *p_res_parser) { /* { Error err = get_token(p_stream,token,line,r_err_str); if (err) return err; }*/ if (token.type == TK_CURLY_BRACKET_OPEN) { Dictionary d; Error err = _parse_dictionary(d, p_stream, line, r_err_str, p_res_parser); if (err) return err; value = d; return OK; } else if (token.type == TK_BRACKET_OPEN) { Array a; Error err = _parse_array(a, p_stream, line, r_err_str, p_res_parser); if (err) return err; value = a; return OK; } else if (token.type == TK_IDENTIFIER) { String id = token.value; if (id == "true") value = true; else if (id == "false") value = false; else if (id == "null" || id == "nil") value = Variant(); else if (id == "Vector2") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; if (args.size() != 2) { r_err_str = "Expected 2 arguments for constructor"; } value = Vector2(args[0], args[1]); return OK; } else if (id == "Rect2") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; if (args.size() != 4) { r_err_str = "Expected 4 arguments for constructor"; } value = Rect2(args[0], args[1], args[2], args[3]); return OK; } else if (id == "Vector3") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; if (args.size() != 3) { r_err_str = "Expected 3 arguments for constructor"; } value = Vector3(args[0], args[1], args[2]); return OK; } else if (id == "Transform2D" || id == "Matrix32") { //compatibility Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; if (args.size() != 6) { r_err_str = "Expected 6 arguments for constructor"; } Transform2D m; m[0] = Vector2(args[0], args[1]); m[1] = Vector2(args[2], args[3]); m[2] = Vector2(args[4], args[5]); value = m; return OK; } else if (id == "Plane") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; if (args.size() != 4) { r_err_str = "Expected 4 arguments for constructor"; } value = Plane(args[0], args[1], args[2], args[3]); return OK; } else if (id == "Quat") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; if (args.size() != 4) { r_err_str = "Expected 4 arguments for constructor"; } value = Quat(args[0], args[1], args[2], args[3]); return OK; } else if (id == "AABB" || id == "Rect3") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; if (args.size() != 6) { r_err_str = "Expected 6 arguments for constructor"; } value = AABB(Vector3(args[0], args[1], args[2]), Vector3(args[3], args[4], args[5])); return OK; } else if (id == "Basis" || id == "Matrix3") { //compatibility Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; if (args.size() != 9) { r_err_str = "Expected 9 arguments for constructor"; } value = Basis(args[0], args[1], args[2], args[3], args[4], args[5], args[6], args[7], args[8]); return OK; } else if (id == "Transform") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; if (args.size() != 12) { r_err_str = "Expected 12 arguments for constructor"; } value = Transform(Basis(args[0], args[1], args[2], args[3], args[4], args[5], args[6], args[7], args[8]), Vector3(args[9], args[10], args[11])); return OK; } else if (id == "Color") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; if (args.size() != 4) { r_err_str = "Expected 4 arguments for constructor"; } value = Color(args[0], args[1], args[2], args[3]); return OK; } else if (id == "NodePath") { get_token(p_stream, token, line, r_err_str); if (token.type != TK_PARENTHESIS_OPEN) { r_err_str = "Expected '('"; return ERR_PARSE_ERROR; } get_token(p_stream, token, line, r_err_str); if (token.type != TK_STRING) { r_err_str = "Expected string as argument for NodePath()"; return ERR_PARSE_ERROR; } value = NodePath(String(token.value)); get_token(p_stream, token, line, r_err_str); if (token.type != TK_PARENTHESIS_CLOSE) { r_err_str = "Expected ')'"; return ERR_PARSE_ERROR; } } else if (id == "RID") { get_token(p_stream, token, line, r_err_str); if (token.type != TK_PARENTHESIS_OPEN) { r_err_str = "Expected '('"; return ERR_PARSE_ERROR; } get_token(p_stream, token, line, r_err_str); if (token.type != TK_NUMBER) { r_err_str = "Expected number as argument"; return ERR_PARSE_ERROR; } value = token.value; get_token(p_stream, token, line, r_err_str); if (token.type != TK_PARENTHESIS_CLOSE) { r_err_str = "Expected ')'"; return ERR_PARSE_ERROR; } return OK; } else if (id == "Object") { get_token(p_stream, token, line, r_err_str); if (token.type != TK_PARENTHESIS_OPEN) { r_err_str = "Expected '('"; return ERR_PARSE_ERROR; } get_token(p_stream, token, line, r_err_str); if (token.type != TK_IDENTIFIER) { r_err_str = "Expected identifier with type of object"; return ERR_PARSE_ERROR; } String type = token.value; Object *obj = ClassDB::instance(type); if (!obj) { r_err_str = "Can't instance Object() of type: " + type; return ERR_PARSE_ERROR; } get_token(p_stream, token, line, r_err_str); if (token.type != TK_COMMA) { r_err_str = "Expected ',' after object type"; return ERR_PARSE_ERROR; } bool at_key = true; String key; Token token2; bool need_comma = false; while (true) { if (p_stream->is_eof()) { r_err_str = "Unexpected End of File while parsing Object()"; return ERR_FILE_CORRUPT; } if (at_key) { Error err = get_token(p_stream, token2, line, r_err_str); if (err != OK) return err; if (token2.type == TK_PARENTHESIS_CLOSE) { Reference *reference = Object::cast_to(obj); if (reference) { value = REF(reference); } else { value = obj; } return OK; } if (need_comma) { if (token2.type != TK_COMMA) { r_err_str = "Expected '}' or ','"; return ERR_PARSE_ERROR; } else { need_comma = false; continue; } } if (token2.type != TK_STRING) { r_err_str = "Expected property name as string"; return ERR_PARSE_ERROR; } key = token2.value; err = get_token(p_stream, token2, line, r_err_str); if (err != OK) return err; if (token2.type != TK_COLON) { r_err_str = "Expected ':'"; return ERR_PARSE_ERROR; } at_key = false; } else { Error err = get_token(p_stream, token2, line, r_err_str); if (err != OK) return err; Variant v; err = parse_value(token2, v, p_stream, line, r_err_str, p_res_parser); if (err) return err; obj->set(key, v); need_comma = true; at_key = true; } } } else if (id == "Resource" || id == "SubResource" || id == "ExtResource") { get_token(p_stream, token, line, r_err_str); if (token.type != TK_PARENTHESIS_OPEN) { r_err_str = "Expected '('"; return ERR_PARSE_ERROR; } if (p_res_parser && id == "Resource" && p_res_parser->func) { RES res; Error err = p_res_parser->func(p_res_parser->userdata, p_stream, res, line, r_err_str); if (err) return err; value = res; return OK; } else if (p_res_parser && id == "ExtResource" && p_res_parser->ext_func) { RES res; Error err = p_res_parser->ext_func(p_res_parser->userdata, p_stream, res, line, r_err_str); if (err) return err; value = res; return OK; } else if (p_res_parser && id == "SubResource" && p_res_parser->sub_func) { RES res; Error err = p_res_parser->sub_func(p_res_parser->userdata, p_stream, res, line, r_err_str); if (err) return err; value = res; return OK; } else { get_token(p_stream, token, line, r_err_str); if (token.type == TK_STRING) { String path = token.value; RES res = ResourceLoader::load(path); if (res.is_null()) { r_err_str = "Can't load resource at path: '" + path + "'."; return ERR_PARSE_ERROR; } get_token(p_stream, token, line, r_err_str); if (token.type != TK_PARENTHESIS_CLOSE) { r_err_str = "Expected ')'"; return ERR_PARSE_ERROR; } value = res; return OK; } else { r_err_str = "Expected string as argument for Resource()."; return ERR_PARSE_ERROR; } } } else if (id == "PackedByteArray" || id == "PoolByteArray" || id == "ByteArray") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; Vector arr; { int len = args.size(); arr.resize(len); uint8_t *w = arr.ptrw(); for (int i = 0; i < len; i++) { w[i] = args[i]; } } value = arr; return OK; } else if (id == "PackedIntArray" || id == "PoolIntArray" || id == "IntArray") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; Vector arr; { int len = args.size(); arr.resize(len); int *w = arr.ptrw(); for (int i = 0; i < len; i++) { w[i] = int(args[i]); } } value = arr; return OK; } else if (id == "PackedRealArray" || id == "PoolRealArray" || id == "FloatArray") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; Vector arr; { int len = args.size(); arr.resize(len); float *w = arr.ptrw(); for (int i = 0; i < len; i++) { w[i] = args[i]; } } value = arr; return OK; } else if (id == "PackedStringArray" || id == "PoolStringArray" || id == "StringArray") { get_token(p_stream, token, line, r_err_str); if (token.type != TK_PARENTHESIS_OPEN) { r_err_str = "Expected '('"; return ERR_PARSE_ERROR; } Vector cs; bool first = true; while (true) { if (!first) { get_token(p_stream, token, line, r_err_str); if (token.type == TK_COMMA) { //do none } else if (token.type == TK_PARENTHESIS_CLOSE) { break; } else { r_err_str = "Expected ',' or ')'"; return ERR_PARSE_ERROR; } } get_token(p_stream, token, line, r_err_str); if (token.type == TK_PARENTHESIS_CLOSE) { break; } else if (token.type != TK_STRING) { r_err_str = "Expected string"; return ERR_PARSE_ERROR; } first = false; cs.push_back(token.value); } Vector arr; { int len = cs.size(); arr.resize(len); String *w = arr.ptrw(); for (int i = 0; i < len; i++) { w[i] = cs[i]; } } value = arr; return OK; } else if (id == "PackedVector2Array" || id == "PoolVector2Array" || id == "Vector2Array") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; Vector arr; { int len = args.size() / 2; arr.resize(len); Vector2 *w = arr.ptrw(); for (int i = 0; i < len; i++) { w[i] = Vector2(args[i * 2 + 0], args[i * 2 + 1]); } } value = arr; return OK; } else if (id == "PackedVector3Array" || id == "PoolVector3Array" || id == "Vector3Array") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; Vector arr; { int len = args.size() / 3; arr.resize(len); Vector3 *w = arr.ptrw(); for (int i = 0; i < len; i++) { w[i] = Vector3(args[i * 3 + 0], args[i * 3 + 1], args[i * 3 + 2]); } } value = arr; return OK; } else if (id == "PackedColorArray" || id == "PoolColorArray" || id == "ColorArray") { Vector args; Error err = _parse_construct(p_stream, args, line, r_err_str); if (err) return err; Vector arr; { int len = args.size() / 4; arr.resize(len); Color *w = arr.ptrw(); for (int i = 0; i < len; i++) { w[i] = Color(args[i * 4 + 0], args[i * 4 + 1], args[i * 4 + 2], args[i * 4 + 3]); } } value = arr; return OK; } else { r_err_str = "Unexpected identifier: '" + id + "'."; return ERR_PARSE_ERROR; } return OK; } else if (token.type == TK_NUMBER) { value = token.value; return OK; } else if (token.type == TK_STRING) { value = token.value; return OK; } else if (token.type == TK_COLOR) { value = token.value; return OK; } else { r_err_str = "Expected value, got " + String(tk_name[token.type]) + "."; return ERR_PARSE_ERROR; } } Error VariantParser::_parse_array(Array &array, Stream *p_stream, int &line, String &r_err_str, ResourceParser *p_res_parser) { Token token; bool need_comma = false; while (true) { if (p_stream->is_eof()) { r_err_str = "Unexpected End of File while parsing array"; return ERR_FILE_CORRUPT; } Error err = get_token(p_stream, token, line, r_err_str); if (err != OK) return err; if (token.type == TK_BRACKET_CLOSE) { return OK; } if (need_comma) { if (token.type != TK_COMMA) { r_err_str = "Expected ','"; return ERR_PARSE_ERROR; } else { need_comma = false; continue; } } Variant v; err = parse_value(token, v, p_stream, line, r_err_str, p_res_parser); if (err) return err; array.push_back(v); need_comma = true; } } Error VariantParser::_parse_dictionary(Dictionary &object, Stream *p_stream, int &line, String &r_err_str, ResourceParser *p_res_parser) { bool at_key = true; Variant key; Token token; bool need_comma = false; while (true) { if (p_stream->is_eof()) { r_err_str = "Unexpected End of File while parsing dictionary"; return ERR_FILE_CORRUPT; } if (at_key) { Error err = get_token(p_stream, token, line, r_err_str); if (err != OK) return err; if (token.type == TK_CURLY_BRACKET_CLOSE) { return OK; } if (need_comma) { if (token.type != TK_COMMA) { r_err_str = "Expected '}' or ','"; return ERR_PARSE_ERROR; } else { need_comma = false; continue; } } err = parse_value(token, key, p_stream, line, r_err_str, p_res_parser); if (err) return err; err = get_token(p_stream, token, line, r_err_str); if (err != OK) return err; if (token.type != TK_COLON) { r_err_str = "Expected ':'"; return ERR_PARSE_ERROR; } at_key = false; } else { Error err = get_token(p_stream, token, line, r_err_str); if (err != OK) return err; Variant v; err = parse_value(token, v, p_stream, line, r_err_str, p_res_parser); if (err) return err; object[key] = v; need_comma = true; at_key = true; } } } Error VariantParser::_parse_tag(Token &token, Stream *p_stream, int &line, String &r_err_str, Tag &r_tag, ResourceParser *p_res_parser, bool p_simple_tag) { r_tag.fields.clear(); if (token.type != TK_BRACKET_OPEN) { r_err_str = "Expected '['"; return ERR_PARSE_ERROR; } if (p_simple_tag) { r_tag.name = ""; r_tag.fields.clear(); while (true) { CharType c = p_stream->get_char(); if (p_stream->is_eof()) { r_err_str = "Unexpected EOF while parsing simple tag"; return ERR_PARSE_ERROR; } if (c == ']') break; r_tag.name += String::chr(c); } r_tag.name = r_tag.name.strip_edges(); return OK; } get_token(p_stream, token, line, r_err_str); if (token.type != TK_IDENTIFIER) { r_err_str = "Expected identifier (tag name)"; return ERR_PARSE_ERROR; } r_tag.name = token.value; bool parsing_tag = true; while (true) { if (p_stream->is_eof()) { r_err_str = "Unexpected End of File while parsing tag: " + r_tag.name; return ERR_FILE_CORRUPT; } get_token(p_stream, token, line, r_err_str); if (token.type == TK_BRACKET_CLOSE) break; if (parsing_tag && token.type == TK_PERIOD) { r_tag.name += "."; //support tags such as [someprop.Android] for specific platforms get_token(p_stream, token, line, r_err_str); } else if (parsing_tag && token.type == TK_COLON) { r_tag.name += ":"; //support tags such as [someprop.Android] for specific platforms get_token(p_stream, token, line, r_err_str); } else { parsing_tag = false; } if (token.type != TK_IDENTIFIER) { r_err_str = "Expected Identifier"; return ERR_PARSE_ERROR; } String id = token.value; if (parsing_tag) { r_tag.name += id; continue; } get_token(p_stream, token, line, r_err_str); if (token.type != TK_EQUAL) { return ERR_PARSE_ERROR; } get_token(p_stream, token, line, r_err_str); Variant value; Error err = parse_value(token, value, p_stream, line, r_err_str, p_res_parser); if (err) return err; r_tag.fields[id] = value; } return OK; } Error VariantParser::parse_tag(Stream *p_stream, int &line, String &r_err_str, Tag &r_tag, ResourceParser *p_res_parser, bool p_simple_tag) { Token token; get_token(p_stream, token, line, r_err_str); if (token.type == TK_EOF) { return ERR_FILE_EOF; } if (token.type != TK_BRACKET_OPEN) { r_err_str = "Expected '['"; return ERR_PARSE_ERROR; } return _parse_tag(token, p_stream, line, r_err_str, r_tag, p_res_parser, p_simple_tag); } Error VariantParser::parse_tag_assign_eof(Stream *p_stream, int &line, String &r_err_str, Tag &r_tag, String &r_assign, Variant &r_value, ResourceParser *p_res_parser, bool p_simple_tag) { //assign.. r_assign = ""; String what; while (true) { CharType c; if (p_stream->saved) { c = p_stream->saved; p_stream->saved = 0; } else { c = p_stream->get_char(); } if (p_stream->is_eof()) return ERR_FILE_EOF; if (c == ';') { //comment while (true) { CharType ch = p_stream->get_char(); if (p_stream->is_eof()) { return ERR_FILE_EOF; } if (ch == '\n') break; } continue; } if (c == '[' && what.length() == 0) { //it's a tag! p_stream->saved = '['; //go back one Error err = parse_tag(p_stream, line, r_err_str, r_tag, p_res_parser, p_simple_tag); return err; } if (c > 32) { if (c == '"') { //quoted p_stream->saved = '"'; Token tk; Error err = get_token(p_stream, tk, line, r_err_str); if (err) return err; if (tk.type != TK_STRING) { r_err_str = "Error reading quoted string"; return ERR_INVALID_DATA; } what = tk.value; } else if (c != '=') { what += String::chr(c); } else { r_assign = what; Token token; get_token(p_stream, token, line, r_err_str); Error err = parse_value(token, r_value, p_stream, line, r_err_str, p_res_parser); return err; } } else if (c == '\n') { line++; } } } Error VariantParser::parse(Stream *p_stream, Variant &r_ret, String &r_err_str, int &r_err_line, ResourceParser *p_res_parser) { Token token; Error err = get_token(p_stream, token, r_err_line, r_err_str); if (err) return err; if (token.type == TK_EOF) { return ERR_FILE_EOF; } return parse_value(token, r_ret, p_stream, r_err_line, r_err_str, p_res_parser); } ////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////// static String rtosfix(double p_value) { if (p_value == 0.0) return "0"; //avoid negative zero (-0) being written, which may annoy git, svn, etc. for changes when they don't exist. else return rtoss(p_value); } Error VariantWriter::write(const Variant &p_variant, StoreStringFunc p_store_string_func, void *p_store_string_ud, EncodeResourceFunc p_encode_res_func, void *p_encode_res_ud) { switch (p_variant.get_type()) { case Variant::NIL: { p_store_string_func(p_store_string_ud, "null"); } break; case Variant::BOOL: { p_store_string_func(p_store_string_ud, p_variant.operator bool() ? "true" : "false"); } break; case Variant::INT: { p_store_string_func(p_store_string_ud, itos(p_variant.operator int64_t())); } break; case Variant::REAL: { String s = rtosfix(p_variant.operator real_t()); if (s.find(".") == -1 && s.find("e") == -1) s += ".0"; p_store_string_func(p_store_string_ud, s); } break; case Variant::STRING: { String str = p_variant; str = "\"" + str.c_escape_multiline() + "\""; p_store_string_func(p_store_string_ud, str); } break; case Variant::VECTOR2: { Vector2 v = p_variant; p_store_string_func(p_store_string_ud, "Vector2( " + rtosfix(v.x) + ", " + rtosfix(v.y) + " )"); } break; case Variant::RECT2: { Rect2 aabb = p_variant; p_store_string_func(p_store_string_ud, "Rect2( " + rtosfix(aabb.position.x) + ", " + rtosfix(aabb.position.y) + ", " + rtosfix(aabb.size.x) + ", " + rtosfix(aabb.size.y) + " )"); } break; case Variant::VECTOR3: { Vector3 v = p_variant; p_store_string_func(p_store_string_ud, "Vector3( " + rtosfix(v.x) + ", " + rtosfix(v.y) + ", " + rtosfix(v.z) + " )"); } break; case Variant::PLANE: { Plane p = p_variant; p_store_string_func(p_store_string_ud, "Plane( " + rtosfix(p.normal.x) + ", " + rtosfix(p.normal.y) + ", " + rtosfix(p.normal.z) + ", " + rtosfix(p.d) + " )"); } break; case Variant::AABB: { AABB aabb = p_variant; p_store_string_func(p_store_string_ud, "AABB( " + rtosfix(aabb.position.x) + ", " + rtosfix(aabb.position.y) + ", " + rtosfix(aabb.position.z) + ", " + rtosfix(aabb.size.x) + ", " + rtosfix(aabb.size.y) + ", " + rtosfix(aabb.size.z) + " )"); } break; case Variant::QUAT: { Quat quat = p_variant; p_store_string_func(p_store_string_ud, "Quat( " + rtosfix(quat.x) + ", " + rtosfix(quat.y) + ", " + rtosfix(quat.z) + ", " + rtosfix(quat.w) + " )"); } break; case Variant::TRANSFORM2D: { String s = "Transform2D( "; Transform2D m3 = p_variant; for (int i = 0; i < 3; i++) { for (int j = 0; j < 2; j++) { if (i != 0 || j != 0) s += ", "; s += rtosfix(m3.elements[i][j]); } } p_store_string_func(p_store_string_ud, s + " )"); } break; case Variant::BASIS: { String s = "Basis( "; Basis m3 = p_variant; for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { if (i != 0 || j != 0) s += ", "; s += rtosfix(m3.elements[i][j]); } } p_store_string_func(p_store_string_ud, s + " )"); } break; case Variant::TRANSFORM: { String s = "Transform( "; Transform t = p_variant; Basis &m3 = t.basis; for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { if (i != 0 || j != 0) s += ", "; s += rtosfix(m3.elements[i][j]); } } s = s + ", " + rtosfix(t.origin.x) + ", " + rtosfix(t.origin.y) + ", " + rtosfix(t.origin.z); p_store_string_func(p_store_string_ud, s + " )"); } break; // misc types case Variant::COLOR: { Color c = p_variant; p_store_string_func(p_store_string_ud, "Color( " + rtosfix(c.r) + ", " + rtosfix(c.g) + ", " + rtosfix(c.b) + ", " + rtosfix(c.a) + " )"); } break; case Variant::STRING_NAME: { String str = p_variant; str = "@\"" + str.c_escape() + "\""; p_store_string_func(p_store_string_ud, str); } break; case Variant::NODE_PATH: { String str = p_variant; str = "NodePath(\"" + str.c_escape() + "\")"; p_store_string_func(p_store_string_ud, str); } break; case Variant::OBJECT: { Object *obj = p_variant; if (!obj) { p_store_string_func(p_store_string_ud, "null"); break; // don't save it } RES res = p_variant; if (res.is_valid()) { //is resource String res_text; //try external function if (p_encode_res_func) { res_text = p_encode_res_func(p_encode_res_ud, res); } //try path because it's a file if (res_text == String() && res->get_path().is_resource_file()) { //external resource String path = res->get_path(); res_text = "Resource( \"" + path + "\")"; } //could come up with some sort of text if (res_text != String()) { p_store_string_func(p_store_string_ud, res_text); break; } } //store as generic object p_store_string_func(p_store_string_ud, "Object(" + obj->get_class() + ","); List props; obj->get_property_list(&props); bool first = true; for (List::Element *E = props.front(); E; E = E->next()) { if (E->get().usage & PROPERTY_USAGE_STORAGE || E->get().usage & PROPERTY_USAGE_SCRIPT_VARIABLE) { //must be serialized if (first) { first = false; } else { p_store_string_func(p_store_string_ud, ","); } p_store_string_func(p_store_string_ud, "\"" + E->get().name + "\":"); write(obj->get(E->get().name), p_store_string_func, p_store_string_ud, p_encode_res_func, p_encode_res_ud); } } p_store_string_func(p_store_string_ud, ")\n"); } break; case Variant::DICTIONARY: { Dictionary dict = p_variant; List keys; dict.get_key_list(&keys); keys.sort(); p_store_string_func(p_store_string_ud, "{\n"); for (List::Element *E = keys.front(); E; E = E->next()) { /* if (!_check_type(dict[E->get()])) continue; */ write(E->get(), p_store_string_func, p_store_string_ud, p_encode_res_func, p_encode_res_ud); p_store_string_func(p_store_string_ud, ": "); write(dict[E->get()], p_store_string_func, p_store_string_ud, p_encode_res_func, p_encode_res_ud); if (E->next()) p_store_string_func(p_store_string_ud, ",\n"); } p_store_string_func(p_store_string_ud, "\n}"); } break; case Variant::ARRAY: { p_store_string_func(p_store_string_ud, "[ "); Array array = p_variant; int len = array.size(); for (int i = 0; i < len; i++) { if (i > 0) p_store_string_func(p_store_string_ud, ", "); write(array[i], p_store_string_func, p_store_string_ud, p_encode_res_func, p_encode_res_ud); } p_store_string_func(p_store_string_ud, " ]"); } break; case Variant::PACKED_BYTE_ARRAY: { p_store_string_func(p_store_string_ud, "PackedByteArray( "); String s; Vector data = p_variant; int len = data.size(); const uint8_t *ptr = data.ptr(); for (int i = 0; i < len; i++) { if (i > 0) p_store_string_func(p_store_string_ud, ", "); p_store_string_func(p_store_string_ud, itos(ptr[i])); } p_store_string_func(p_store_string_ud, " )"); } break; case Variant::PACKED_INT_ARRAY: { p_store_string_func(p_store_string_ud, "PackedIntArray( "); Vector data = p_variant; int len = data.size(); const int *ptr = data.ptr(); for (int i = 0; i < len; i++) { if (i > 0) p_store_string_func(p_store_string_ud, ", "); p_store_string_func(p_store_string_ud, itos(ptr[i])); } p_store_string_func(p_store_string_ud, " )"); } break; case Variant::PACKED_REAL_ARRAY: { p_store_string_func(p_store_string_ud, "PackedRealArray( "); Vector data = p_variant; int len = data.size(); const real_t *ptr = data.ptr(); for (int i = 0; i < len; i++) { if (i > 0) p_store_string_func(p_store_string_ud, ", "); p_store_string_func(p_store_string_ud, rtosfix(ptr[i])); } p_store_string_func(p_store_string_ud, " )"); } break; case Variant::PACKED_STRING_ARRAY: { p_store_string_func(p_store_string_ud, "PackedStringArray( "); Vector data = p_variant; int len = data.size(); const String *ptr = data.ptr(); String s; //write_string("\n"); for (int i = 0; i < len; i++) { if (i > 0) p_store_string_func(p_store_string_ud, ", "); String str = ptr[i]; p_store_string_func(p_store_string_ud, "\"" + str.c_escape() + "\""); } p_store_string_func(p_store_string_ud, " )"); } break; case Variant::PACKED_VECTOR2_ARRAY: { p_store_string_func(p_store_string_ud, "PackedVector2Array( "); Vector data = p_variant; int len = data.size(); const Vector2 *ptr = data.ptr(); for (int i = 0; i < len; i++) { if (i > 0) p_store_string_func(p_store_string_ud, ", "); p_store_string_func(p_store_string_ud, rtosfix(ptr[i].x) + ", " + rtosfix(ptr[i].y)); } p_store_string_func(p_store_string_ud, " )"); } break; case Variant::PACKED_VECTOR3_ARRAY: { p_store_string_func(p_store_string_ud, "PackedVector3Array( "); Vector data = p_variant; int len = data.size(); const Vector3 *ptr = data.ptr(); for (int i = 0; i < len; i++) { if (i > 0) p_store_string_func(p_store_string_ud, ", "); p_store_string_func(p_store_string_ud, rtosfix(ptr[i].x) + ", " + rtosfix(ptr[i].y) + ", " + rtosfix(ptr[i].z)); } p_store_string_func(p_store_string_ud, " )"); } break; case Variant::PACKED_COLOR_ARRAY: { p_store_string_func(p_store_string_ud, "PackedColorArray( "); Vector data = p_variant; int len = data.size(); const Color *ptr = data.ptr(); for (int i = 0; i < len; i++) { if (i > 0) p_store_string_func(p_store_string_ud, ", "); p_store_string_func(p_store_string_ud, rtosfix(ptr[i].r) + ", " + rtosfix(ptr[i].g) + ", " + rtosfix(ptr[i].b) + ", " + rtosfix(ptr[i].a)); } p_store_string_func(p_store_string_ud, " )"); } break; default: { } } return OK; } static Error _write_to_str(void *ud, const String &p_string) { String *str = (String *)ud; (*str) += p_string; return OK; } Error VariantWriter::write_to_string(const Variant &p_variant, String &r_string, EncodeResourceFunc p_encode_res_func, void *p_encode_res_ud) { r_string = String(); return write(p_variant, _write_to_str, &r_string, p_encode_res_func, p_encode_res_ud); }