Character classes are more convenient than sub-matches for matching from a range of characters at one position in a pattern. There are two ways to specify a character class: square brackets or the special backslash options. See the following sections:
| ImageGear Professional DLL v17.0 for Windows |  |
| Character Classes | |
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| ImageGear Professional DLL v17.0 for Windows > User Guide > Using ImageGear > Optical Character Recognition > Using Auto-Redact > Regular Expressions > Character Classes |