40 lines
660 B
C++
40 lines
660 B
C++
#pragma once
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#include <QString>
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#include <QTextStream>
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#include <QFile>
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#include <tuple>
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namespace Lex {
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class ExStream
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{
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public:
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typedef int n_row;
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typedef int n_col;
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explicit ExStream();
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virtual ~ExStream();
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/**
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* 初始化文件指向.
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*
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* \param path 源文件
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* \return -2无法打开：-1：文件不存在，0：成功
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*/
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int initSource(const QString &path);
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/**
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* 在文件文本流中读取一个字符.
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*
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* \return
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*/
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std::tuple<n_row, n_col, QChar> read();
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private:
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QFile * file_target;
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QTextStream* text_input;
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QString current_line;
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int current_row, current_col;
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};
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}
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