CSV.rar_cocos2dx_csv

#include "CSVParser.h" namespace CSVParser { Csv::Csv(const string& filename) { Parse(filename); } Csv::~Csv() { } void Csv::Load(const string& filename, string& Data) { ssize_t len = 0; unsigned char *data = NULL; auto strPath = FileUtils::getInstance()->fullPathForFilename(filename); data = FileUtils::getInstance()->getFileData(strPath.c_str(),"r", &len); Data.assign((char *)data, len); free(data); } void Csv::Parse(const string& filename) { // 清除之前的数据 m_content.clear(); m_strErrorInfo.clear(); string text; Load(filename, text); if (text.size() == 0) { return; } // 定义状态 enum StateType { NewFieldStart, // 新字段开始 NonQuotesField, // 非引号字段 QuotesField, // 引号字段 FieldSeparator, // 字段分隔 QuoteInQuotesField, // 引号字段中的引号 RowSeparator, // 行分隔符字符1，回车 Error, // 语法错误 }; Row Fields = Row(); string strField; // 设置初始状态 StateType State = NewFieldStart; for (int i = 0, size = text.size(); i < size; ++i) { const char& ch = text[i]; switch (State) { case NewFieldStart: { // 新字段开始 if (ch == '"') { State = QuotesField; } else if (ch == ',') { Fields.push_back(""); State = FieldSeparator; } else if (ch == '\r' || ch == '\n') { m_strErrorInfo = "语法错误：有空行"; State = Error; } else { strField.push_back(ch); State = NonQuotesField; } } break; case NonQuotesField: { // 非引号字段 if (ch == ',') { Fields.push_back(strField); strField.clear(); State = FieldSeparator; } else if (ch == '\r') { Fields.push_back(strField); State = RowSeparator; } else { strField.push_back(ch); } } break; case QuotesField: { // 引号字段 if (ch == '"') { State = QuoteInQuotesField; } else { strField.push_back(ch); } } break; case FieldSeparator: { // 字段分隔 if (ch == ',') { Fields.push_back(""); } else if (ch == '"') { strField.clear(); State = QuotesField; } else if (ch == '\r') { Fields.push_back(""); State = RowSeparator; } else { strField.push_back(ch); State = NonQuotesField; } } break; case QuoteInQuotesField: { // 引号字段中的引号 if (ch == ',') { // 引号字段闭合 Fields.push_back(strField); strField.clear(); State = FieldSeparator; } else if (ch == '\r') { // 引号字段闭合 Fields.push_back(strField); State = RowSeparator; } else if (ch == '"') { // 转义 strField.push_back(ch); State = QuotesField; } else { m_strErrorInfo = "语法错误： 转义字符 \" 不能完成转义 或 引号字段结尾引号没有紧贴字段分隔符"; State = Error; } } break; case RowSeparator: { // 行分隔符字符1，回车 if (ch == '\n') { m_content.push_back(Fields); Fields = Row(); // Fields.clear(); strField.clear(); State = NewFieldStart; } else { m_strErrorInfo = "语法错误： 行分隔用了回车 \\r。但未使用回车换行 \\r\\n "; State = Error; } } break; case Error: { // 语法错误 return; } break; default: break; } } // end for switch (State) { case NewFieldStart: { // Excel导出的CSV每行都以/r/n结尾。包括最后一行 } break; case NonQuotesField: { Fields.push_back(strField); m_content.push_back(Fields); } break; case QuotesField: { m_strErrorInfo = "语法错误： 引号字段未闭合"; } break; case FieldSeparator: { Fields.push_back(""); m_content.push_back(Fields); } break; case QuoteInQuotesField: { Fields.push_back(strField); m_content.push_back(Fields); } break; case RowSeparator: { } break; case Error: { } break; default: break; } setHeader(); } void Csv::setHeader() { m_header.clear(); for (unsigned int i = 0; i < m_content[0].size(); i++) { m_header.push_back(m_content[0][i]); } for (unsigned int i = 0; i < m_content.size(); i++) { m_content[i].setHeader(&m_header); } } Row& Csv::operator[](unsigned int key) { if (key < m_content.size()) return m_content[key]; throw "can't return this row (doesn't exist)"; } }