Extract part of a text file

[Stanislaw]

Hi.
I've got a text file (actually it is more like a json file, with the .opt extension). Anyway, somewhere in this file there is a plain-text line:

InstalledPackagesPath "Specific_Path"

Basically I need to open it, search thru it to find that line (it occurs just once) and create a variable from what is written in quotation marks. I would appreciate some help

[Stanislaw]

--Read the file to table (the file referenced in the variable):
mytable = TextFile.ReadToTable("%usercfg%");

Basically I need to find the line which contains InstalledPackagesPath: and extract from that line information located between quotation marks.

[Ulrich]

My preferred approach is using dkjson for reading JSON files in Lua.
https://forums.indigorose.com/forum/...from-json-file

Ulrich

[Stanislaw]

Thanks.
This is not really a json file apparently... The very line is simple text, without any brackets etc. Last line:

(...)long list(...)
{SSSSS
Enabled 1
Quality 2
}
{AA
Enabled 1
Type 2
Quality 2
}
{Bloom
Enabled 1
Quality 2
}
{DOF
Enabled 1
Quality 2
}
{Buildings
Enabled 1
Quality 2
}
{VegetationLarge
Enabled 1
Quality 2
}
{VegetationSmall
Enabled 1
Quality 2
}
{TextureSynthesis
Quality 2
}
{PostProcess
Enabled 1
EyeAdaptation 1
ColorGrading 1
Sharpen 1
Fringe 1
LensDistortion 0
Dirt 1
LensFlare 1
FilmGrain 1
Vignette 1
LensBlurMultiplier 1.000000
FringeMultiplier 1.000000
}
{VectorDataTessellation
Enabled 1
Quality 2
}
}
InstalledPackagesPath "C:\Path"

[Ulrich]

Try this:

-- read the file into a string
local sConfig = TextFile.ReadToString(SessionVar.Expand("%SourceFolder%\\config.opt"));
-- find what matters
local sPath = string.match(sConfig, ".*InstalledPackagesPath \"(.*)\".*");
-- present the result
Dialog.Message("", sPath);

Ulrich

[Stanislaw]

I am shocked.

You are my hero.

LOL

[Stanislaw]

OK, I am probably a total idiot. :-/

So how do I double the "" in the string for the correct path?

[Stanislaw]

Disregard. Too much work and too little coffee...

[Ulrich]

Sorry, I was away. Do you have a solution?

Ulrich

[Stanislaw]

Sort of, but sometimes it works and sometimes it doesn't.
I am not sure if perhaps I need to use the tostring command somehow...

[Stanislaw]

WOW, I think I just guessed it...

mytable = TextFile.ReadToTable("%usercfg%");
-- read the file into a string
local sConfig = TextFile.ReadToString(SessionVar.Expand("%usercfg% "));
-- find what matters
local sPath = string.match(sConfig, ".*InstalledPackagesPath "(.*)".*");
MYpath = tostring(sPath)