The snippet library.

C#Text validation & encoding

Build text incrementally with StringBuilder ↗

C#: Append fragments instead of repeatedly concatenating intermediate strings in a loop.

C#✓ Tested

C#Text validation & encoding

Check a literal prefix with ordinal comparison ↗

C#: Choose StringComparison.Ordinal when a prefix is a protocol token rather than culture-dependent text.

C#✓ Tested

C#Text validation & encoding

Check an extension without case sensitivity ↗

C#: Use an explicit ordinal case-insensitive comparison for a known filename suffix.

C#✓ Tested

C#Text validation & encoding

Enumerate Unicode code points ↗

C#: EnumerateRunes combines surrogate pairs into Unicode scalar values.

C#✓ Tested

C#Text validation & encoding

Extract a substring with range syntax ↗

C#: C# range ends are exclusive; indices operate on UTF-16 code units.

C#✓ Tested

C#Text validation & encoding

Extract all integer tokens from text ↗

C#: Enumerate Match objects returned by Regex.Matches with an explicit timeout.

C#✓ Tested

C#Text validation & encoding

Normalize canonically equivalent Unicode strings ↗

C#: Normalize to NFC before an ordinal comparison of equivalent character sequences.

C#✓ Tested

C#Text validation & encoding

Pad a numeric label to a fixed width ↗

C#: Use a numeric format specifier to add leading zeroes.

C#✓ Tested

C#Text validation & encoding

Quote a literal search term for a regex ↗

C#: Regex.Escape prevents metacharacters in a literal term from changing the pattern.

C#✓ Tested

C#Text validation & encoding

Validate a complete identifier with a regex ↗

C#: Use absolute anchors and a timeout so the regex checks the complete input with a bounded execution time.

C#✓ Tested