Possessive class quantifier

regex

[A-Z]++

Explanation

Can reduce backtracking in ambiguous patterns.

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Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.

Same sheet · prioritizing Performance and Backtracking

Prevent backtracking into a grouped subpattern.

Open In sheetregexsame section

Example of a risky pattern to rewrite.

Open In sheetregexsame section

Use explicit stop characters instead of dot-star where possible.

Open In sheetregexsame section

Repeat without backtracking.

Open In sheetregex2 tag match

Match only at the beginning of the input.

Match one ASCII digit character.