Replace substrings

substitute(+regexp, +string, +substitution, -result)

substitute/4 replaces in "string" the substring defined by "regexp" with "substitution". The modified string is returned in "result"

Arguments

	regexp		atom
	string		atom
	substitution	atom
	result		atom

Examples

	substitute('(%w+) (%w+)', 'one two', '%2 %1', L).
		==> L = 'two one'

Whatever is bracketed is assigned to a term. Whatever is bracketed by the from left to right i-th opening bracket is assigned to the i-th term. Bracketed terms can be referenced in substitute/4 and substitute_all/4 with %1...%9 in the substitute expression.

Standard

This predicate is not part of the ISO-Prolog Standard.

See also

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