Loop trough files and replace variable values between quotes

mrjj

@WD30EFRX said:
Well, its a nice problem :)
Is this something you must do many times since u care about the performance?

will it always start with "const char* " for those pszTimestamp cases?

SGaist

Hi and welcome to devnet,

You provided only input examples. Can you also provide a complete before/after example ?

WD30EFRX

@SGaist

Hi!

The output variables are generated by an external algortithm much like Bitcoin.
So new hash values and variables need to get 'computed' first and are all related to each other.

So the output is truly random, the only part that i know for sure are the leading string that identify them in the sources.

So to shorten my request, what i need is a nice, optimized function to :

Open the file
Match a whole line by the leading string
Split is somewhere after the leading string and replace the variables OR replace with a regex between the quotes
Write back to file

My current code opens every file multiple times for each new string i need to replace.
So optimized, it would open 1 file and look for ALL the predefined strings i need to replace.

Hope this helps :)

Thank you

SGaist

Do you know all the strings you have to search before opening the file ?

WD30EFRX

@SGaist

Yes i do.

Thank you

SGaist

Then I'd build something like a vector containing the string/regexp to search along with their replacement and loop on that over a buffer containing your file data. Then you wouldn't need to open every file several times.

WD30EFRX

@SGaist

Thank you.

Right now i'm looking to replace the fixed lines using their known line numbers, split the strings, extract the values and join them back.

This seems to work. However, i have several multiline codeblocks that needs replacement between {}, and now i'm stucked with those. :)

mrjj

Hi
several multiline codeblocks ?
That is a new type it seems?

WD30EFRX

@mrjj

As example:

int64_t DoSomeFunctionHere(int64_t param1, int64_t param2)
{
    Some line of code here
    Some line of code here
    return Param1 + Param2;
}

So i need to look for DoSomeFunctionHere and replace everything that follows inside the { and }

mrjj

Ok, so that is still "0x0" type
for "Some line of code here"
or new case?

WD30EFRX

@mrjj

It's combined. But i think i'll look for someone to hire to complete my project since my deadline is very near :)

mrjj

@WD30EFRX
Ok that could be an option too,
If u use something like
https://www.freelancer.com

Make sure to describe the problem very carefully with
actual samples of what to find and what to replace with and the
different cases. Also what " first known part of the string." is. and so on.
Also, if the files are in subfolder etc.

Else you wont get a good estimate of the cost.