File extension is in extensions list: Difference between revisions
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(→{{header|Java}}: Add simpler, less-robust version) |
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{{draft task}}Given a file name and a list of extensions (including the dot), tell whether the file's extension is in the extensions list. The check should be case insensitive. The file might not have an extension. |
{{draft task}}Given a file name and a list of extensions (including the dot), tell whether the file's extension is in the extensions list. The check should be case insensitive. The file might not have an extension. |
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=={{header|D}}== |
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<lang d>void main() { |
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import std.stdio, std.string, std.path, std.algorithm; |
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immutable exts = [".txt", ".gz", ".bat", ".c", ".c++", ".exe", ".pdf"]; |
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immutable fileNames = |
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"text.txt |
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text.TXT |
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test.tar.gz |
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test/test2.exe |
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test\\test2.exe |
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test |
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a/b/c\\d/foo |
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foo.c |
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foo.C |
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foo.C++ |
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foo.c# |
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foo.zkl |
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document.pdf"; |
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foreach (fName; fileNames.split) |
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writeln(fName, ": ", exts.canFind(fName.extension.toLower)); |
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}</lang> |
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{{out}} |
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<pre>text.txt: true |
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text.TXT: true |
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test.tar.gz: true |
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test/test2.exe: true |
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test\test2.exe: true |
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test: false |
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a/b/c\d/foo: false |
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foo.c: true |
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foo.C: true |
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foo.C++: true |
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foo.c#: false |
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foo.zkl: false |
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document.pdf: true</pre> |
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=={{header|Haskell}}== |
=={{header|Haskell}}== |
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lowerExtensions = map toLower extensions |
lowerExtensions = map toLower extensions |
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</lang> |
</lang> |
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=={{header|J}}== |
=={{header|J}}== |
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