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527 zl :string-equal
zl:string-equal stringl string2 &optional (idxl 0) (idx2 0) liml lim2 Function
string-equal compares two strings, returning t if they are equal and nil if
they are not. The comparison ignores character fields for character style
and alphabetic case.
zl:equal calls zl:string-equal if applied to two strings. stringl and string2
are strings or objects that can be coerced to strings. See the function
string, page 502.
The optional arguments let you specify substrings of the two string arguments
for comparison.
idxl
idx2
liml
lim2
Examples:
Specifies the position within stringl from which to begin the
comparison (counting from 0). Default is 0, the first character
in the string.
Specifies the position within string2 from which to begin the
comparison. Default is O.
Specifies the position within stringl of the first character beyond
the end of the comparison. Default is nil, that is, the operation
continues to the end of the string.
Specifies the position within string2 of the first character beyond
the end of the comparison. Default is nil.
(zl :string-equal "Faa" "faa") => T
(zl :string-equal "faa" "bar") => NIL
(zl :string-equal "element" "select" 0 1 3 4) => T
(zl :string-equal 'symbol "SYMBOL") => T
(zl : string-equal "apple" "orange") => NIL
(zl :string-equal "apple" "please" 2 0 nil 3) => T
(zl :string-equal "apple" "APPLE") => T
(zl:string-equal "apple" "apply") => NIL
I
For a table of related items: See the section "Case-Insensitive String Comparison
Predicates" in Symbolics Common Lisp: Language Concepts.
The Common Lisp equivalent to zl:string-equal is the function:
string-equal
string-exact-compare stringl string2 &key (startl 0) (start2 0) Function
(endl nil) (end2 nil)
This is a comparison predicate that compares two strings or substrings of
them, exactly including the character fields for character style and alphabetic
case.
string-exact-compare returns: