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functions

v19	v20
148	148	=== exists( path:string ) : boolean ===
149	149
150		This function checks if the path corresponds to an existing element. ''Note that if the argument is a variable expression it will be interpreted as a call to exists( arg:variable) and will not read the value of the variable.'' For example, the following DML code:
	150	This function checks if the path corresponds to an existing element; the path must be an absolute or external path. ''Note that if the argument is a variable expression it will be interpreted as a call to exists( arg:variable) and will not read the value of the variable.'' For example, the following DML code:
151	151	{{{
152	152	v = '/some/absolute/path';