Validating filenames with regularexpression validator

Add Or Update Item(String bstr Url, String bstr List Name, Boolean b Add, Boolean b System Update, Boolean b Preserve Item Version, Boolean b Preserve Item UIVersion, Boolean b Update No Version, Int32& pl ID, String& pbstr Guid, Guid pbstr New Doc Id, Boolean b Has New Doc Id, String bstr Version, Object& pvar Attachment Names, Object& pvar Attachment Contents, Object& pvar Properties, Boolean b Check Out, Boolean b Checkin, Boolean b Un Restricted Update In Progress, Boolean b Migration, Boolean b Publish, String bstr File Name, ISP2DSafe Array Writer p List Data Validation Callback, ISP2DSafe Array Writer p Restrict Insert Callback, ISP2DSafe Array Writer p Unique Field Callback) at Microsoft. (files|file|Dateien|fichiers|bestanden|archivos|filer|tiedostot|pliki|soubory|elemei|ficheiros|arquivos|dosyalar|datoteke|fitxers|failid|fails|bylos|fajlovi|fitxategiak)$ const string pattern = "^(\W|_vti|_)|[^\w]|(files|file|Dateien|fichiers|bestanden|archivos|filer|tiedostot|pliki|soubory|elemei|ficheiros|arquivos|dosyalar|datoteke|fitxers|failid|fails|bylos|fajlovi|fitxategiak)$"; const string str = "Doc with & opr.docx"; var regexed Str = Regex.

validating filenames with regularexpression validator-78

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For advanced examples, see Advanced Regular Expression Examples You can also find some regular expressions on Regular Expressions and Bag of algorithms pages. (Braces could cause problems.) So use a regular expression like this very simple shorthand for non-space characters: More information ( to Brent Welch for these examples, showing the difference between a traditional character matching and "the Unicode way."Only letters: The second regular expression is interpreted in a similar fashion.

There are more characters because there are more metacharacters.

Regular Expression Examples is a list, roughly sorted by complexity, of regular expression examples.

It also serves as both a library of useful expressions to include in your own code. PYK 2015-10-29: As a matter of fact, every string is a legal Tcl variable name."How do I split an arbitrary string into words? If you use or some other list operation, then you must be sure that the string is a well-formed list.

LV: Apparently no one has come along and updated the above expression to cover these.

Example posted by KC: A set containing both angle brackets: metacharacter)?Message: The file or folder name contains characters that are not permitted. COMException (0x81020073): The file or folder name contains characters that are not permitted. You must be careful not to reject valid e-mail addresses.For example, character is very useful, but unfortunately, there are a lot of incorrect e-mail validation routines that reject it. .org, .com, .solutions) is ::emailpat proc testit # valid e-mails testit OK testit OK testit OK testit OK testit OK testit OK testit OK testit OK testit OK testit OK testit OK testit OK testit OK testit OK testit OK testit OK # invalid tests testit NG testit NG testit NG testit NG testit NG testit NG testit NG testit NG testit NG testit NG testit NG testit NG testit NG ) and that (the one greedy-operator) makes the whole expression greedy.The regex given will match (admittedly pathological) filenames like def Why not use the simpler @"\.(jpg|jpeg|png|gif)$" which my VERY limited knowledge of regular expressions tells me looks for one of the extensions at the end of a string? I wonder if you recognise my name (Smart421, London Gazette).

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