mirror of https://github.com/axmolengine/axmol.git
549 lines
20 KiB
C++
549 lines
20 KiB
C++
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/****************************************************************************
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Copyright (c) 2014 Chukong Technologies Inc.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "CCPUParticle3DScriptParser.h"
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NS_CC_BEGIN
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PUScriptParser::PUScriptParser()
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{
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}
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PUScriptParser::~PUScriptParser()
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{
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}
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void traceScriptParserCell(PUConcreteNodeList& nodes,int level)
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{
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PUConcreteNodeList::const_iterator it = nodes.begin();
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for(;it != nodes.end();it++)
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{
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printf("%s,##%d\n",(*it)->token.c_str(),level);
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if((*it)->children.size() != 0)
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{
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traceScriptParserCell((*it)->children,level+1);
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}
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}
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}
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//trace出scriptParser//
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void traceScriptParser(PUConcreteNodeList& nodes)
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{
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traceScriptParserCell(nodes,1);
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}
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//解析脚本,生成nodeList//
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void PUScriptParser::parse(PUConcreteNodeList& nodes,const PUScriptTokenList& tokens)
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{
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// MEMCATEGORY_GENERAL because SharedPtr can only free using that category
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enum{READY, OBJECT};
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unsigned int state = READY;
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PUConcreteNode *parent = 0;
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PUConcreteNode* node;
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PUScriptToken *token = 0;
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PUScriptTokenList::const_iterator i = tokens.begin(), end = tokens.end();
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// int kkkk = 0;
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while(i != end)
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{
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// kkkk ++;
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token = (*i);
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switch(state)
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{
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case READY:
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if(token->type == TID_WORD)
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{
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if(token->lexeme == "import")
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{
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node = new PUConcreteNode;
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node->token = token->lexeme;
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node->file = token->file;
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node->line = token->line;
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node->type = CNT_IMPORT;
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// The next token is the target
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++i;
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if(i == end || ((*i)->type != TID_WORD && (*i)->type != TID_QUOTE))
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{
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printf("Except,expected import target at line :%d,ScriptParser::parse",node->line);
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}
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PUConcreteNode* temp = new PUConcreteNode;
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temp->parent = node;
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temp->file = (*i)->file;
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temp->line = (*i)->line;
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temp->type = (*i)->type == TID_WORD ? CNT_WORD : CNT_QUOTE;
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if(temp->type == CNT_QUOTE)
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temp->token = (*i)->lexeme.substr(1, token->lexeme.size() - 2);
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else
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temp->token = (*i)->lexeme;
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node->children.push_back(temp);
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// The second-next token is the source
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++i;
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++i;
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if(i == end || ((*i)->type != TID_WORD && (*i)->type != TID_QUOTE))
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{
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printf("expected import source at line :%d,ScriptParser::parse",node->line);
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}
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temp = new PUConcreteNode;
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temp->parent = node;
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temp->file = (*i)->file;
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temp->line = (*i)->line;
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temp->type = (*i)->type == TID_WORD ? CNT_WORD : CNT_QUOTE;
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if(temp->type == CNT_QUOTE)
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temp->token = (*i)->lexeme.substr(1, (*i)->lexeme.size() - 2);
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else
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temp->token = (*i)->lexeme;
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node->children.push_back(temp);
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// Consume all the newlines
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i = skipNewlines(i, end);
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// Insert the node
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if(parent)
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{
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node->parent = parent;
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parent->children.push_back(node);
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}
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else
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{
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node->parent = 0;
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nodes.push_back(node);
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}
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node = nullptr;
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}
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else if(token->lexeme == "set")
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{
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node = new PUConcreteNode;
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node->token = token->lexeme;
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node->file = token->file;
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node->line = token->line;
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node->type = CNT_VARIABLE_ASSIGN;
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// The next token is the variable
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++i;
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if(i == end || (*i)->type != TID_VARIABLE)
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{
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printf("Exception");
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// OGRE_EXCEPT(Exception::ERR_INVALID_STATE,
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// Ogre::String("expected variable name at line ") +
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// Ogre::StringConverter::toString(node->line),
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// "ScriptParser::parse");
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}
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PUConcreteNode* temp = new PUConcreteNode;
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temp->parent = node;
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temp->file = (*i)->file;
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temp->line = (*i)->line;
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temp->type = CNT_VARIABLE;
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temp->token = (*i)->lexeme;
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node->children.push_back(temp);
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// The next token is the assignment
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++i;
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if(i == end || ((*i)->type != TID_WORD && (*i)->type != TID_QUOTE))
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{
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printf("expected variable value at line %d ScriptParser::parse\n",node->line);
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}
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temp = new PUConcreteNode;
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temp->parent = node;
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temp->file = (*i)->file;
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temp->line = (*i)->line;
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temp->type = (*i)->type == TID_WORD ? CNT_WORD : CNT_QUOTE;
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if(temp->type == CNT_QUOTE)
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temp->token = (*i)->lexeme.substr(1, (*i)->lexeme.size() - 2);
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else
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temp->token = (*i)->lexeme;
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node->children.push_back(temp);
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// Consume all the newlines
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i = skipNewlines(i, end);
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// Insert the node
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if(parent)
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{
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node->parent = parent;
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parent->children.push_back(node);
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}
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else
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{
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node->parent = 0;
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nodes.push_back(node);
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}
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node = nullptr;
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}
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else
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{
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node = new PUConcreteNode();
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node->file = token->file;
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node->line = token->line;
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node->type = token->type == TID_WORD ? CNT_WORD : CNT_QUOTE;
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if(node->type == CNT_QUOTE)
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node->token = token->lexeme.substr(1, token->lexeme.size() - 2);
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else
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node->token = token->lexeme;
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// Insert the node
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if(parent)
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{
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node->parent = parent;
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parent->children.push_back(node);
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}
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else
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{
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node->parent = 0;
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nodes.push_back(node);
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}
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// Set the parent
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parent = node;
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// Switch states
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state = OBJECT;
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node = nullptr;
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}
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}
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else if(token->type == TID_RBRACKET)
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{
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// Go up one level if we can
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if(parent)
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parent = parent->parent;
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node = new PUConcreteNode();
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node->token = token->lexeme;
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node->file = token->file;
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node->line = token->line;
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node->type = CNT_RBRACE;
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// Consume all the newlines
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i = skipNewlines(i, end);
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// Insert the node
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if(parent)
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{
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node->parent = parent;
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parent->children.push_back(node);
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}
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else
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{
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node->parent = 0;
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nodes.push_back(node);
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}
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// Move up another level
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if(parent)
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parent = parent->parent;
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node = nullptr;
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}
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break;
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case OBJECT:
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if(token->type == TID_NEWLINE)
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{
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// Look ahead to the next non-newline token and if it isn't an {, this was a property
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PUScriptTokenList::const_iterator next = skipNewlines(i, end);
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if(next == end || (*next)->type != TID_LBRACKET)
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{
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// Ended a property here
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if(parent)
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parent = parent->parent;
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state = READY;
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}
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}
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else if(token->type == TID_COLON)
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{
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node = new PUConcreteNode();
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node->token = token->lexeme;
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node->file = token->file;
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node->line = token->line;
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node->type = CNT_COLON;
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// The following token are the parent objects (base classes).
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// Require at least one of them.
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PUScriptTokenList::const_iterator j = i + 1;
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j = skipNewlines(j, end);
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if(j == end || ((*j)->type != TID_WORD && (*j)->type != TID_QUOTE)) {
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printf("expected object identifier at line %d ScriptParser::parse\n",node->line);
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}
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while(j != end && ((*j)->type == TID_WORD || (*j)->type == TID_QUOTE))
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{
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PUConcreteNode* tempNode = new PUConcreteNode;
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tempNode->token = (*j)->lexeme;
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tempNode->file = (*j)->file;
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tempNode->line = (*j)->line;
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tempNode->type = (*j)->type == TID_WORD ? CNT_WORD : CNT_QUOTE;
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tempNode->parent = node;
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node->children.push_back(tempNode);
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++j;
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}
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// Move it backwards once, since the end of the loop moves it forwards again anyway
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j--;
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i = j;
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// Insert the node
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if(parent)
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{
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node->parent = parent;
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parent->children.push_back(node);
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}
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else
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{
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node->parent = 0;
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nodes.push_back(node);
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}
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node = nullptr;
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}
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else if(token->type == TID_LBRACKET)
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{
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node = new PUConcreteNode;
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node->token = token->lexeme;
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node->file = token->file;
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node->line = token->line;
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node->type = CNT_LBRACE;
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// Consume all the newlines
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i = skipNewlines(i, end);
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// Insert the node
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if(parent)
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{
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node->parent = parent;
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parent->children.push_back(node);
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}
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else
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{
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node->parent = 0;
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nodes.push_back(node);
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}
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// Set the parent
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parent = node;
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// Change the state
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state = READY;
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node = nullptr;
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}
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else if(token->type == TID_RBRACKET)
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{
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// Go up one level if we can
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if(parent)
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parent = parent->parent;
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// If the parent is currently a { then go up again
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if(parent && parent->type == CNT_LBRACE && parent->parent)
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parent = parent->parent;
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node = new PUConcreteNode;
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node->token = token->lexeme;
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node->file = token->file;
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node->line = token->line;
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node->type = CNT_RBRACE;
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// Consume all the newlines
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i = skipNewlines(i, end);
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// Insert the node
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if(parent)
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{
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node->parent = parent;
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parent->children.push_back(node);
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}
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else
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{
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node->parent = 0;
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nodes.push_back(node);
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}
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// Move up another level
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if(parent)
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parent = parent->parent;
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node = nullptr;
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state = READY;
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}
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else if(token->type == TID_VARIABLE)
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{
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node = new PUConcreteNode;
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node->token = token->lexeme;
|
||
|
|
node->file = token->file;
|
||
|
|
node->line = token->line;
|
||
|
|
node->type = CNT_VARIABLE;
|
||
|
|
|
||
|
|
// Insert the node
|
||
|
|
if(parent)
|
||
|
|
{
|
||
|
|
node->parent = parent;
|
||
|
|
parent->children.push_back(node);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
node->parent = 0;
|
||
|
|
nodes.push_back(node);
|
||
|
|
}
|
||
|
|
node = nullptr;
|
||
|
|
}
|
||
|
|
else if(token->type == TID_QUOTE)
|
||
|
|
{
|
||
|
|
node = new PUConcreteNode;
|
||
|
|
node->token = token->lexeme.substr(1, token->lexeme.size() - 2);
|
||
|
|
node->file = token->file;
|
||
|
|
node->line = token->line;
|
||
|
|
node->type = CNT_QUOTE;
|
||
|
|
|
||
|
|
// Insert the node
|
||
|
|
if(parent)
|
||
|
|
{
|
||
|
|
node->parent = parent;
|
||
|
|
parent->children.push_back(node);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
node->parent = 0;
|
||
|
|
nodes.push_back(node);
|
||
|
|
}
|
||
|
|
node = nullptr;
|
||
|
|
}
|
||
|
|
else if(token->type == TID_WORD)
|
||
|
|
{
|
||
|
|
node = new PUConcreteNode;
|
||
|
|
node->token = token->lexeme;
|
||
|
|
node->file = token->file;
|
||
|
|
node->line = token->line;
|
||
|
|
node->type = CNT_WORD;
|
||
|
|
|
||
|
|
// Insert the node
|
||
|
|
if(parent)
|
||
|
|
{
|
||
|
|
node->parent = parent;
|
||
|
|
parent->children.push_back(node);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
node->parent = 0;
|
||
|
|
nodes.push_back(node);
|
||
|
|
}
|
||
|
|
node = nullptr;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
++i;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// traceScriptParser(nodes);//
|
||
|
|
// printf("kkkk:%d\n",kkkk);//
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
void PUScriptParser::parseChunk(PUConcreteNodeList& nodes, const PUScriptTokenList &tokens)
|
||
|
|
{
|
||
|
|
PUConcreteNode* node = nullptr;
|
||
|
|
PUScriptToken *token = 0;
|
||
|
|
for(PUScriptTokenList::const_iterator i = tokens.begin(); i != tokens.end(); ++i)
|
||
|
|
{
|
||
|
|
token = *i;
|
||
|
|
|
||
|
|
node = nullptr;
|
||
|
|
switch(token->type)
|
||
|
|
{
|
||
|
|
case TID_VARIABLE:
|
||
|
|
node = new PUConcreteNode;
|
||
|
|
node->file = token->file;
|
||
|
|
node->line = token->line;
|
||
|
|
node->parent = 0;
|
||
|
|
node->token = token->lexeme;
|
||
|
|
node->type = CNT_VARIABLE;
|
||
|
|
break;
|
||
|
|
case TID_WORD:
|
||
|
|
node = new PUConcreteNode;
|
||
|
|
node->file = token->file;
|
||
|
|
node->line = token->line;
|
||
|
|
node->parent = 0;
|
||
|
|
node->token = token->lexeme;
|
||
|
|
node->type = CNT_WORD;
|
||
|
|
break;
|
||
|
|
case TID_QUOTE:
|
||
|
|
node = new PUConcreteNode;
|
||
|
|
node->file = token->file;
|
||
|
|
node->line = token->line;
|
||
|
|
node->parent = 0;
|
||
|
|
node->token = token->lexeme.substr(1, token->lexeme.size() - 2);
|
||
|
|
node->type = CNT_QUOTE;
|
||
|
|
default:
|
||
|
|
printf("unexpected token,%s,%d\n",token->lexeme.c_str(),token->line);
|
||
|
|
// OGRE_EXCEPT(Exception::ERR_INVALID_STATE,
|
||
|
|
// Ogre::String("unexpected token") + token->lexeme + " at line " +
|
||
|
|
// Ogre::StringConverter::toString(token->line),
|
||
|
|
// "ScriptParser::parseChunk");
|
||
|
|
}
|
||
|
|
|
||
|
|
if(node != nullptr)
|
||
|
|
nodes.push_back(node);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
PUScriptToken *PUScriptParser::getToken(PUScriptTokenList::iterator i, PUScriptTokenList::iterator end, int offset)
|
||
|
|
{
|
||
|
|
PUScriptToken *token = 0;
|
||
|
|
PUScriptTokenList::iterator iter = i + offset;
|
||
|
|
if(iter != end)
|
||
|
|
token = (*i);
|
||
|
|
return token;
|
||
|
|
}
|
||
|
|
|
||
|
|
PUScriptTokenList::const_iterator PUScriptParser::skipNewlines(PUScriptTokenList::const_iterator i, PUScriptTokenList::const_iterator end)
|
||
|
|
{
|
||
|
|
while(i != end && (*i)->type == TID_NEWLINE)
|
||
|
|
++i;
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
|
||
|
|
PUConcreteNode::~PUConcreteNode()
|
||
|
|
{
|
||
|
|
for (auto iter : children){
|
||
|
|
delete iter;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
NS_CC_END
|