2.2

PrintShop Web Administrator Guide | 132
Quantification
A quantifier after a character or group specifies how often that preceding expression is allowed to
occur. The most common quantifiers are ?, *, and +:
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? The question mark indicates there is zero or one of the preceding element. For example, colou?r"
matches both color and colour.
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* The asterisk indicates there are zero or more of the preceding element. For example, ab*c
matches "ac", "abc", "abbc", "abbbc", and so on.
•
+ The plus sign indicates that there is one or more of the preceding element. For example, ab+c
matches "abc", "abbc", "abbbc", and so on, but not "ac".
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{n} Exactly n occurrences.
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{n,} At least n occurrences.
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{n,m} Between n and m occurrences.
There are 12 characters with special meanings:
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the opening square bracket [
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the backslash \
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the forward slash /
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the caret ^
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the dollar sign $
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the period or dot .
•
the vertical bar or pipe symbol |
•
the question mark ?
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the asterisk or star *
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the plus sign +
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the opening round bracket (
•
the closing round bracket )
Special characters can be escaped by placing a backslash \ before the special character. A backslash
can be matched using \\.