Results for “Text parsing & arithmetic”
Small, practical examples. Search by task or narrow things down below.
Check an upper integer bound before adding
C++: For these nonnegative values, compare against the maximum minus the addend first.
C++✓ Tested
Check whether a command can be resolved
PowerShell: Get-Command with a local error override supports an expected missing-command lookup.
PowerShell✓ Tested
Collapse repeated spaces
Linux Commands: Use tr -s when repeated occurrences of a character should become one.
Linux Commands✓ Tested
Compare a command case-sensitively
Arduino / C: strcmp returns zero when both null-terminated strings match.
Arduino / C✓ Tested
Convert tab stops to spaces
Linux Commands: Use expand with a fixed tab width when preparing plain-text alignment.
Linux Commands✓ Tested
Copy a file into an image
Include a small application file during the build.
Dockerfile✓ Tested
Copy a string with a guaranteed terminator
Arduino / C: Reserve one character for the terminator when copying a bounded string.
Arduino / C✓ Tested
Count matching lines
Linux Commands: Use grep -c to count matching lines rather than individual occurrences.
Linux Commands✓ Tested
Count Unicode code points
Java: Use codePointCount when supplementary characters should count as one rather than two UTF-16 units.
Java✓ Tested
Count Unicode code points in a string
JavaScript: String iteration combines surrogate pairs, unlike the UTF-16 length property.
JavaScript✓ Tested
Count Unicode code points in a string
TypeScript: String iteration combines surrogate pairs, unlike the UTF-16 length property.
TypeScript✓ Tested
Decode a 16-bit big-endian integer
C: Promote bytes to an unsigned integer type before combining shifted values.
C✓ Tested