Split a very long string parameter into multiple lines in Inno Setup script

Question

I have a very long string with file excludes in my Inno Setup script:

[Files]
Source: "..inx64Release*"; 
    Excludes: ".editorconfig,PackageContents.xml,
untimeswin-arm*,
untimeswin-x86*,System.Buffers.dll,System.Memory.dll,System.Numerics.Vectors.dll,System.Runtime.CompilerServices.Unsafe.dll"; 
    DestDir: "{app}Contents"; 
    Flags: ignoreversion recursesubdirs createallsubdirs

I would like to split that for better readability, for example:

[Files]
Source: "..inx64Release*"; 
    Excludes: ".editorconfig," + 
              "PackageContents.xml," + 
              "
untimeswin-arm*," + 
              "
untimeswin-x86*," + 
              "System.Buffers.dll," + 
              "System.Memory.dll," + 
              "System.Numerics.Vectors.dll," + 
              "System.Runtime.CompilerServices.Unsafe.dll"; 
    DestDir: "{app}Contents"; 
    Flags: ignoreversion recursesubdirs createallsubdirs

Is that somehow possible?

Thanks in advance!

question from:https://stackoverflow.com/questions/65925268/split-a-very-long-string-parameter-into-multiple-lines-in-inno-setup-script

Answer 1

You can define a preprocessor variable using multi-line expression and then use the variable in the (Excludes) parameter:

[Files]

#define Excludes 
    ".editorconfig," + 
    "PackageContents.xml," + 
    "
untimeswin-arm*," + 
    "
untimeswin-x86*," + 
    "System.Buffers.dll," + 
    "System.Memory.dll," + 
    "System.Numerics.Vectors.dll," + 
    "System.Runtime.CompilerServices.Unsafe.dll"

Source: "..inx64Release*"; 
    Excludes: "{#Excludes}"; 
    DestDir: "{app}Contents"; 
    Flags: ignoreversion recursesubdirs createallsubdirs