What do the square brackets ([]) metacharacters define?

Pattern matching is checking if the code is matching to the pattern. Yes, it sounds strange. I said the same thing but in different words. Jul 12, 2023 ... Pattern matching is the process of determining whether or not the striated toolmarks on two objects, such as fired bullets, correspond. This is ... Pattern matching in Haskell is different from that found in logic programming languages such as Prolog; in particular, it can be viewed as one-way matching. Jun 16, 2022 ... First choose the “Regular expression” option. If you want columns that contain either Source or Inject, then try a pattern such as (.*Source.*)|(.*Inject.*) Pattern Matching Functions » · Cases — elements of a list or expression matching a given pattern. Position ▫ MemberQ ▫ MatchQ ▫ Count ▫ DeleteCases ▫ ... Jul 31, 2022 ... A quick overview of pattern matching · If obj is of type class · If obj is a transitive subtype of class · If class is an ABC and defines a __ ... Uses of pattern matching include outputting the locations (if any) of a pattern within a token sequence, to output some component of the matched pattern, and to ... Jan 27, 2022 ... In dotall mode, the expression . matches any character, including a line terminator. By default this expression does not match line terminators. Sep 14, 2012 ... There are lots of ways to deal with this, the example below defines the string with the percent chars separately in a group where the catcode of ... Jan 18, 2023 ... Extending pattern matching to switch allows an expression to be tested against a number of patterns, each with a specific action.