Visual Studio regular expression replace

Question

I'm sorry if this questions have been asked before, but could not find an appropriate answer here. I need a little help with Visual Studio regular expressions to modify source code. I have source code that loads textures from files. I have lots of line like these.

D3DXCreateTextureFromFileA(pDevice , chFileName , &pTexture) ;
D3DXCreateTextureFromFileA(pDevice , pAttrib->Value() , &pd3dTexture) ;

I need to define a constant and based on that to load textures from a custom format. I want this

   D3DXCreateTextureFromFileA(pDevice , chFileName , &pTexture) ;

to become this

 #ifdef LOAD_TEXTURES_FROM_CF

    CreateTextureFromResourceFile((pDevice , chFileName , &pTexture) ;

 #else

    D3DXCreateTextureFromFileA(pDevice , chFileName , &pTexture) ;

 #endif

How can I achieve this with Visual Studio regular expressions ? Thank you in advance.

Why don't you want the macro solution? It works well in your case — SingerOfTheFall
– SingerOfTheFall, Commented Aug 6, 2012 at 8:41

Mario · Accepted Answer · 2012-08-06 08:44:05Z

2

There's no need for regular expression replaces (I would even advice against doing so). Instead of duplicating your new code, just create another macro:

#ifdef LOAD_TEXTURES_FROM_CF
#define CreateTextureFromFile(a, b, c) CreateTextureFromResourceFile((a), (b), (c))
#else
#define CreateTextureFromFile(a, b, c) D3DXCreateTextureFromFileA((a), (b), (c))
#endif

Then just replace all previous occurances of D3DXCreateTextureFromFileA with CreateTextureFromFile and you should be fine.

answered Aug 6, 2012 at 8:44

Mario

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2 Comments

Mario Over a year ago

Just to add: I'd actually think about using a tiny wrapper function instead of static code/a macro. That way you could even toggle loading at runtime, not just compile time.

user1578544 Over a year ago

Thanks for both of you. I will use a macro as you proposed. Just out of curiosity - how a regex solution will look like ?

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