To tell others to read the above line or that what was said above is true, one may use many carets in chat (for example. The caret stands for a bitwise XOR in programming languages inspired by C. The initial character in a line or string is frequently matched using the symbol^ by programs that accept regular expressions (regex). For instance, a user of the Perl programming language could use the regular expression below to replace the first character in the variable "myvariable" with an uppercase character.
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