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D: add countLettersInTextFile.d
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.gitignore
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.gitignore
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# ---> C
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# ---> C
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# Prerequisites
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# Prerequisites
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*.d
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*.d
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!d-programming/**.d
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# Object files
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# Object files
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*.o
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*.o
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@ -213,3 +214,35 @@ cython_debug/
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# and can be added to the global gitignore or merged into this file. For a more nuclear
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# and can be added to the global gitignore or merged into this file. For a more nuclear
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# option (not recommended) you can uncomment the following to ignore the entire idea folder.
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# option (not recommended) you can uncomment the following to ignore the entire idea folder.
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#.idea/
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#.idea/
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# ---> D
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# Compiled Object files
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*.o
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*.obj
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# Compiled Dynamic libraries
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*.so
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*.dylib
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*.dll
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# Compiled Static libraries
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*.a
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*.lib
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# Executables
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*.exe
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# DUB
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.dub
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docs.json
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__dummy.html
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docs/
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# Code coverage
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*.lst
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# Swap files of editors
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*.*~
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# Build directory
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build/
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16
d-programming/countLettersInTextFile.d
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16
d-programming/countLettersInTextFile.d
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import std.algorithm.iteration : filter;
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import std.algorithm.searching : count;
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import std.ascii : isAlpha, isWhite;
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import std.file : read;
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import std.stdio : writefln;
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void main()
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{
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auto fileContent = cast(string)read("file.txt");
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auto totalLetters =
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count(filter!(a => isAlpha(a) || isWhite(a))(fileContent));
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auto percentage = (totalLetters * 100) / cast(double)fileContent.length;
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writefln("Percentage of letters: %.0f", percentage);
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}
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