Results for “Strings & text”
Small, practical examples. Search by task or narrow things down below.
Extract a substring with an explicit count
C++: The second substr argument is a length rather than an ending index.
C++✓ Tested
Extract a substring with range syntax
C#: C# range ends are exclusive; indices operate on UTF-16 code units.
C#✓ Tested
Extract named regex fields
Python: Use named capture groups to parse a known date-shaped identifier.
Python✓ Tested
Extract part of a string
Use one-based positions with substr.
substr✓ Tested
Extract successive regex matches
Java: Use a Matcher loop to find all unsigned integer tokens in Java text.
Java✓ Tested
Find the final path separator
C: strrchr locates the last matching character without modifying the input.
C✓ Tested
Find the first occurrence of a character
C: strchr returns a pointer into the input or NULL if the character is absent.
C✓ Tested
Format a numeric label with leading zeroes
Bash Scripts: Use a constant printf format string and supply values as separate arguments.
Bash Scripts✓ Tested
Format several integers in a fixed buffer
Arduino / C: snprintf limits writes to the buffer size and includes a terminating null byte.
Arduino / C✓ Tested
Identify the title of a cited work
HTML: Cite marks the title of a work rather than the name of its author.
HTML✓ Tested
Increment a counter without an unexpected errexit
Bash Scripts: An assignment avoids the zero-result exit status of a standalone arithmetic post-increment.
Bash Scripts✓ Tested
Inspect a substring without allocating a copy
C++: A string_view refers to existing storage and must not outlive that storage.
C++✓ Tested