December 2023
Intermediate to advanced
242 pages
5h 28m
English
Content preview from Text Processing with JavaScript
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| Recipe 67 | Striping Invalid Characters from Filenames |
Task
Suppose you operate a file hosting service. To ensure a smooth download process, you should avoid certain characters in the filenames of the files being provided for download. In iOS and macOS, the filename cannot contain a colon (:), while Android and Windows OS have stricter restrictions and do not allow the use of <, >, :, ", /, \, |, ?, and * in filenames.
The reason is that the OS uses these characters for enclosing paths in quotes, marking off drives and directories, indicating wildcards and command line redirection, etc. Moreover, there are certain words that Windows uses as reserved names for internal purposes, and as a result, they cannot be used as filenames.
These reserved ...
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