htmlformat.h

来自「一个C++写的RSS解析器,需要libxml2.rpm支持」· C头文件 代码 · 共 168 行

#ifndef HTML_FORMAT_H
#define HTML_FORMAT_H


#ifdef __cplusplus
extern "C"
{
#endif

//#include "htmlbase.h"

#ifdef __cplusplus
}
#endif


#include <ctype.h>
#include <sys/stat.h>




#define	METHOD_GB2312_TO_UTF8 0
#define METHOD_UTF8_TO_GB2312 1

#define TRIM_LEFT	0
#define TRIM_RIGHT	1
#define TRIM_BOTH	2


class Format
{
public:
	Format(){};
	virtual ~Format(){};

	virtual void format(char* content) = 0;
	
protected:
	void TRIM(char* data = NULL);

};

///////////////下面是Decorator类相关
class Decorator:public Format
{
public:
	Decorator(Format* format)
	{
		m_format = format;
	};
	
	virtual ~Decorator(){};

	virtual void format(char* content)
	{
		if(m_format)
			m_format->format(content);
	};
	
private:
	Format* m_format;

};

///////////////

class HTML: public Decorator
{
public:
	HTML(Format* format, char* begin, char* end):Decorator(format)
	{
		begintag = begin;
		endtag = end;
		
		if(begintag)
			begin_len = strlen(begintag);
		if(endtag)
			end_len = strlen(endtag);
	};
	virtual ~HTML(){};
	
	virtual void format(char* content);

private:
	char* begintag;
	char* endtag;	
	
	int begin_len;
	int end_len;
};


class Replace: public Decorator
{
public:
	Replace(Format* format, char* before, char* after):Decorator(format)
	{
		beforetag = before;
		aftertag = after;
		
		if(beforetag)
			beforetag_len = strlen(beforetag);
		if(aftertag)
			aftertag_len = strlen(aftertag);
	};
	virtual ~Replace(){};
	
	virtual void format(char* content);

private:
	char* beforetag;
	char* aftertag;
	
	int beforetag_len;
	int aftertag_len;
};

class Blank: public Decorator
{
public:
	Blank(Format* format):Decorator(format){tag = "&nbsp;";tag_len=strlen(tag);};
	virtual ~Blank(){};
	
	virtual void format(char* content);
	
private:
	char* tag;
	int tag_len;
};




class CodeConvert: public Decorator
{
public:
	CodeConvert(int method = METHOD_UTF8_TO_GB2312):Decorator(NULL)
	{
		m_method = method;
	};
	
	virtual ~CodeConvert(){};
	
	virtual void format(char* content);
	
private:
	int m_method;
};


////////////////供外部调用类
class HtmlFormat: public Format
{

	
public:
	HtmlFormat(){};
	virtual ~HtmlFormat(){};

	virtual void format(char* content);
	
	void format_code_convert(char *content, char* begintag = NULL, char* endtag = NULL, int method = METHOD_UTF8_TO_GB2312);
	void codeConvert(char *content, int method = METHOD_UTF8_TO_GB2312);
};

#endif//HTML_FORMAT_H