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Extended regular expressions

Formats are specified by means of extended regular expressions.

Extended regular expressions are regular expressions with additional functionality enclosed between an opening bracket followed by a percent character and a percent character followed by a closing bracket ([% and %]). Extended regular expressions have the following additional features:

  1. One or more characters inside the brackets are supplemented with popular OCR errors.
    For example, [%S%] may allow S, $, and 5.
  2. Special words inside [%...%] for common character sets and OCR errors:
    1. LETTERS — Capital Latin letters and characters commonly recognized as capital Latin letters;
    2. DIGITS — Digits and characters commonly recognized as digits;
    3. LETERSANDDIGITS — Capital Latin letters, digits, and characters commonly recognized as capital Latin letters and digits.

For example, [%DIGITS%]{9} specifies nine consecutive digits or common OCR errors for digits, e.g. "OI234Sb7B9".

Note.If search results are not satisfactory, open the Advanced > Code tab in the element's properties, check the regular expression to make sure there are no mistakes, and then copy it to the Regular Expression box and check the alphabet.

14.01.2021 14:17:19


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