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String matching: Difference between revisions
Logo
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Line 135:
loc = "abab".indexOf("ab") //returns 0
loc = "abab".indexOf("ab",loc+1) //returns 2</lang>
=={{header|Logo}}==
<lang logo>to starts.with? :sub :thing
if empty? :sub [output "true]
if empty? :thing [output "false]
if not equal? first :sub first :thing [output "false]
output starts.with? butfirst :sub butfirst :thing
end
to ends.with? :sub :thing
if empty? :sub [output "true]
if empty? :thing [output "false]
if not equal? last :sub last :thing [output "false]
output ends.with? butlast :sub butlast :thing
end
show starts.with? "dog "doghouse ; true
show ends.with? "house "doghouse ; true
show substring? "gho "doghouse ; true (built-in)</lang>
=={{header|Objective-C}}==
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