Results for “Text parsing & arithmetic”
Small, practical examples. Search by task or narrow things down below.
Decode a validated pair of hexadecimal digits
C: Convert each nibble and reject a nonhexadecimal character before combining them.
C✓ Tested
Decode bytes as validated UTF-8
Decode bytes as validated UTF-8 in a complete Rust program using the standard library.
Rust✓ Tested
Detect invalid UTF-8 data
Detect invalid UTF-8 data in a complete Rust program using the standard library.
Rust✓ Tested
Detect truncated formatted output
Arduino / C: snprintf returns the length it would have written, excluding the null terminator.
Arduino / C✓ Tested
Discard incidental output from a setup command
PowerShell: Out-Null prevents setup objects from becoming part of a function or script’s useful result.
PowerShell✓ Tested
Encode a byte buffer as hexadecimal
C: Format each byte as an unsigned two-digit hexadecimal value.
C✓ Tested
Encode an integer as big-endian bytes
Encode an integer as big-endian bytes in a complete Rust program using the standard library.
Rust✓ Tested
Encode and decode binary data as Base64
Python: Use Base64 when a text format must carry bytes; it is encoding, not encryption.
Python✓ Tested
Enumerate Unicode code points
C#: EnumerateRunes combines surrogate pairs into Unicode scalar values.
C#✓ Tested
Exclude matching lines
Linux Commands: Use grep -v to retain lines that do not start with a comment marker.
Linux Commands✓ Tested
Extract a known substring
PowerShell: Substring uses a zero-based starting index and a character count.
PowerShell✓ Tested
Extract a section of an Arduino String
Arduino / C: substring includes the start index and excludes the end index.
Arduino / C✓ Tested