Anonymous user
Talk:Extract file extension: Difference between revisions
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Yes, you are right. My C# code needs to be updated. I will try to do that, when I find time.
===legal file extension===
If the ''file extension'' appears '''after''' the last period (using the first example), then the file extension should be <big>'''jpg'''</big>, and not <big>'''.jpg'''</big> (just a nitpick). Also note that <big>'''.jpg'''</big> contains a non-alphanumeric character, namely the period. In various documents that I read, the file extension is to the ''right'' of the last period (with other caveats, of course), and does not include the period. But other sites do include the period, so ... -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 23:26, 4 May 2015 (UTC)
Also note that the legality of what is a legal file extension depends on the operating system. Windows/95 for instance,
Also, I would use the word '''digits''' (or better yet, '''decimal digits''') instead of '''numbers''' when defining a legal file extension (for this Rosetta Code task). -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 23:42, 4 May 2015 (UTC)
It wouldn't hurt to define what a '''letter''' is; I assume you meant lower and uppercase versions of the Latin (Roman) alphabet. If so, specifically mention them. I don't like assuming what you meant. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 23:42, 4 May 2015 (UTC)
'''<big><big><math>\pi</math></big></big>''' is a number, so is '''+1.5''' and '''-6'''. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 23:42, 4 May 2015 (UTC)
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