Google Message Security for Google Apps Administration Guide User Manual

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Notes

•

matches any character that’s not a letter, digit, or

underscore. It prevents the regex from matching
characters before or after the phrase.

•

In example 2,

matches a space character, and

{0,3}

indicates that from 0 to 3 spaces can occur between the
words stock and tip.

•

matches the start of a new line. Allows the regex to

match the phrase if it appears at the beginning of a line,
with no characters before it.

•

matches the end of a line. Allows the regex to match

the phrase if it appears at the the end of a line, with no
characters after it.

•

In example 3,

(s)

matches the letter s, and

{0,1}

indicates that the letter can occur 0 or 1 times after the
word tip. Therefore, the regex matches stock tip and
stock tips. Alternatively, you can use the character

instead of

{0,1}