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to upgraded LoadString....

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hyzboy 2025-02-18 00:28:18 +08:00
parent 07bd7729d0
commit b8613b245d
2 changed files with 107 additions and 29 deletions
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4
inc/hgl/io/LoadString.h
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@ -3,6 +3,7 @@
#include<hgl/type/String.h>
#include<hgl/CodePage.h>
#include<string>
namespace hgl
{
@ -10,5 +11,8 @@ namespace hgl
int LoadStringFromText(U16String &full_text,const void *source_data,const int size,const CharSet &cs=UTF8CharSet); ///<加载一个原始文本块到U16String
int LoadStringFromTextFile(U8String &str,const OSString &filename,const CharSet &cs=UTF8CharSet); ///<加载一个原始文本文件到U8String
int LoadStringFromTextFile(U16String &str,const OSString &filename,const CharSet &cs=UTF8CharSet); ///<加载一个原始文本文件到U16String
int LoadStringFromTextFile(std::string &str,const OSString &filename,const CharSet &cs=UTF8CharSet); ///<加载一个原始文本文件到U8String
int LoadStringFromTextFile(std::wstring &str,const OSString &filename,const CharSet &cs=UTF8CharSet); ///<加载一个原始文本文件到U16String
}//namespace hgl
#endif//HGL_LOAD_STRING_INCLUDE

132
src/Text/LoadString.cpp
View File

@ -1,13 +1,62 @@
#include<hgl/io/LoadString.h>
#include<hgl/filesystem/FileSystem.h>
#include<string>
namespace hgl
{
namespace
{
template<typename CH> struct MakeString
{
virtual void set(CH *str,const int count)=0;
};
template<typename CH,typename STR> struct MakeStringImpl:public MakeString<CH>
{
STR *hgl_string;
MakeStringImpl(STR *s)
{
hgl_string=s;
}
void set(CH *str,const int count) override
{
hgl_string->fromString(str,count);
}
};
template<typename CH,typename STR> struct MakeStringSTD:public MakeString<CH>
{
STR *std_string;
MakeStringSTD(STR *s)
{
std_string=s;
}
void set(CH *str,const int count) override
{
std_string->assign(str,count);
}
};
using MakeAString =MakeStringImpl<char, AnsiString>;
using MakeU8String =MakeStringImpl<u8char, U8String>;
using MakeU16String =MakeStringImpl<u16char,U16String>;
using MakeWString =MakeStringImpl<wchar_t,WString>;
using MakeStdString =MakeStringSTD<char, std::string>;
using MakeStdU8String =MakeStringSTD<u8char, std::u8string>;
using MakeStdU16String =MakeStringSTD<u16char, std::u16string>;
using MakeStdWString =MakeStringSTD<wchar_t, std::wstring>;
}
/**
* 加载一个原始文本块到U8String
*/
int LoadStringFromText(U8String &full_text,const void *source_data,const int size,const CharSet &cs)
int LoadStringFromText(MakeString<u8char> *make_string,const void *source_data,const int size,const CharSet &cs)
{
if(!source_data||size<=0)
if(!make_string||!source_data||size<=0)
return 0;
u8char *str=nullptr;
@ -17,7 +66,7 @@ namespace hgl
if(size>=3&&data[0]==0xEF&&data[1]==0xBB&&data[2]==0xBF) //utf8
{
full_text.fromString((u8char *)(data+3),size-3);
make_string->set((u8char *)(data+3),size-3);
char_count=size-3;
}
else
@ -75,7 +124,7 @@ namespace hgl
char_count=to_utf8(cs,&str,(char *)data,size);
#endif//
full_text.fromString(str,char_count);
make_string->set(str,char_count);
delete[] str;
}
@ -85,9 +134,9 @@ namespace hgl
/**
* 加载一个原始文本块到U16String
*/
int LoadStringFromText(U16String &full_text,const void *source_data,const int size,const CharSet &cs)
int LoadStringFromText(MakeString<u16char> *make_string,const void *source_data,const int size,const CharSet &cs)
{
if(!source_data||size<=0)
if(!make_string||!source_data||size<=0)
return(0);
const uint8 *data=(const uint8 *)source_data;
@ -130,7 +179,7 @@ namespace hgl
if((uchar *)str>=data&&(uchar *)str<=data+size) //如果str的地址在data的范围内
{
full_text.fromString(str,char_count);
make_string->set(str,char_count);
}
else
{
@ -156,41 +205,66 @@ namespace hgl
#endif//
}
full_text.fromString(str,char_count);
make_string->set(str,char_count);
delete[] str;
}
return char_count;
}
/**
* 加载一个原始文本文件到U8String
*/
int LoadStringFromText(U8String &full_text,const void *source_data,const int size,const CharSet &cs)
{
MakeU8String make_string(&full_text);
return LoadStringFromText(&make_string,source_data,size,cs);
}
int LoadStringFromText(U16String &full_text,const void *source_data,const int size,const CharSet &cs)
{
MakeU16String make_string(&full_text);
return LoadStringFromText(&make_string,source_data,size,cs);
}
template<typename T>
int LoadStringFromTextFile(MakeString<T> *make_string,const OSString &filename,const CharSet &cs)
{
uchar *data;
const int size=filesystem::LoadFileToMemory(filename,(void **)&data);
if(size<=0)
return size;
return LoadStringFromText(make_string,data,size,cs);
}
int LoadStringFromTextFile(U8String &str,const OSString &filename,const CharSet &cs)
{
uchar *data;
MakeU8String make_string(&str);
const int size=filesystem::LoadFileToMemory(filename,(void **)&data);
if(size<=0)
return size;
return LoadStringFromText(str,data,size,cs);
return LoadStringFromTextFile<u8char>(&make_string,filename,cs);
}
/**
* 加载一个原始文本文件到U16String
*/
int LoadStringFromTextFile(U16String &str,const OSString &filename,const CharSet &cs)
{
uchar *data;
MakeU16String make_string(&str);
const int size=filesystem::LoadFileToMemory(filename,(void **)&data);
if(size<=0)
return size;
return LoadStringFromText(str,data,size,cs);
return LoadStringFromTextFile<u16char>(&make_string,filename,cs);
}
int LoadStringFromTextFile(std::string &str,const OSString &filename,const CharSet &cs)
{
MakeStdString make_string(&str);
return LoadStringFromTextFile<u8char>((MakeU8String *)&make_string,filename,cs);
}
int LoadStringFromTextFile(std::wstring &str,const OSString &filename,const CharSet &cs)
{
MakeStdWString make_string(&str);
return LoadStringFromTextFile<wchar_t>(&make_string,filename,cs);
}
}//namespace hgl