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File Paths in Wolfram Language
Here’s the translation of the Go code to Wolfram Language, formatted in Markdown suitable for Hugo:
(* The FileNameJoin function is used to construct paths in a portable way.
It takes any number of arguments and constructs a hierarchical path from them. *)
p = FileNameJoin[{"dir1", "dir2", "filename"}];
Print["p: ", p]
(* You should always use FileNameJoin instead of concatenating "/" or "\" manually.
In addition to providing portability, FileNameJoin will also normalize paths
by removing superfluous separators and directory changes. *)
Print[FileNameJoin[{"dir1//", "filename"}]]
Print[FileNameJoin[{"dir1/../dir1", "filename"}]]
(* DirectoryName and FileNameTake can be used to split a path to the directory
and the file. *)
Print["DirectoryName(p): ", DirectoryName[p]]
Print["FileNameTake(p): ", FileNameTake[p]]
(* We can check whether a path is absolute. *)
Print[AbsolutePathQ["dir/file"]]
Print[AbsolutePathQ["/dir/file"]]
filename = "config.json";
(* Some file names have extensions following a dot. We can split the extension
out of such names with FileExtension. *)
ext = FileExtension[filename];
Print[ext]
(* To find the file's name with the extension removed, use FileBaseName. *)
Print[FileBaseName[filename]]
(* RelativePath finds a relative path between a base and a target.
It returns $Failed if the target cannot be made relative to base. *)
rel = RelativePath["a/b", "a/b/t/file"];
If[rel === $Failed,
Print["Error: Cannot make path relative"],
Print[rel]
]
rel = RelativePath["a/b", "a/c/t/file"];
If[rel === $Failed,
Print["Error: Cannot make path relative"],
Print[rel]
]This code demonstrates file path operations in Wolfram Language. Here’s a breakdown of the translation:
filepath.Joinis replaced withFileNameJoin.filepath.Dirandfilepath.Baseare replaced withDirectoryNameandFileNameTakerespectively.filepath.IsAbsis replaced withAbsolutePathQ.filepath.Extis replaced withFileExtension.strings.TrimSuffixfor removing the extension is replaced withFileBaseName, which directly gives the file name without extension.filepath.Relis replaced withRelativePath. Note that in Wolfram Language, if the path cannot be made relative, it returns$Failedinstead of an error.
The code structure and explanations have been maintained as much as possible, with adaptations made for Wolfram Language syntax and conventions. The output of this code will be similar to the original Go example, showing various file path operations and their results.