Name

substring-before( )

Synopsis

                     string substring-before(string s1, string s2)

The substring-before() function returns the substring of s1 that precedes the first occurrence of the s2 in s1, or it returns the empty string if s1 does not contain s2. For example, substring-before('Charming cat', 'ing') returns "Charm“. The test is case-sensitive. Nonstring objects may be passed to this function, in which case they’re automatically converted to strings as if by the string( ) function.

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