Results for “Strings & literal text”
Small, practical examples. Search by task or narrow things down below.
Clamp a numeric setting to a valid range
Bash Scripts: Use arithmetic comparisons before applying a user-supplied bounded setting.
Bash Scripts✓ Tested
Collapse repeated spaces
Linux Commands: Use tr -s when repeated occurrences of a character should become one.
Linux Commands✓ Tested
Compare binary buffers including zero bytes
C: memcmp checks an explicit byte length rather than stopping at a string terminator.
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 a leading run of allowed characters
C: strspn counts bytes at the start that belong to a specified character set.
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
Detect truncated formatted output
Arduino / C: snprintf returns the length it would have written, excluding the null terminator.
Arduino / C✓ Tested