CompileLike2Regexp convert a like `lhs` to a regular expression.

CompilePattern handles escapes and wild cards convert pattern characters and pattern types.

Copy deep copies a string.

DoMatch matches the string with patChars and patTypes.

IsExactMatch return true if no wildcard character.

MemoizeStr returns memoized version of stringFunc.

Unquote interprets s as a single-quoted, double-quoted, or backquoted Go string literal, returning the string value that s quotes.

UnquoteChar decodes the first character or byte in the escaped string or character literal represented by the string s.

ErrSyntax indicates that a value does not have the right syntax for the target type.

StringerFunc defines string func implement fmt.Stringer.

StringerStr defines a alias to normal string.