13.
Shortcuts [^tnrfv ] not space S [^n] (depends on mode) everything . [a-zA-Z0-9_] word w [^a-zA-Z0-9_] not word W [0-9] digit d [^0-9] not digit D [tnrfv ] space s Equivalent Class Name Shortcut
Symbols indicating that the preceding element of the pattern can repeat.
/runs?/ matches runs or run
/1d*/ matches any number beginning with “1”.
at least n times { n ,} no more than m times {, m } between n and m times { n , m } exactly n { n } zero or more * one or more + zero or one ? Count Repeater
at least n times { n ,} no more than m times {, m } between n and m times { n , m } exactly n { n } zero or more * one or more + zero or one ? Count Repeater
Find all places where more than one space follows punctuation.
20.
Lab Reference at least n times { n ,} no more than m times {, m } between n and m times { n , m } exactly n { n } zero or more * one or more + zero or one ? Count Repeater everything . not space S space s not word W word w not digit D digit d Name Shortcut
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