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Count occurrences of a substring: Difference between revisions

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Count occurrences of a substring (view source)

Revision as of 10:23, 16 June 2011

4 bytes removed ,  13 years ago
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→‎{{header|Tcl}}: fix blurb text
(→‎{{header|Tcl}}: Demonstrate the lack of re-metachar problems)
m (→‎{{header|Tcl}}: fix blurb text)
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=={{header|Tcl}}==
The regular expression engine is ideal for matching this task, especially as the <tt>***=</tt> prefix makes it interpret the rest of the argument as a literal string to match:
<lang tcl>proc countSubstrings {haystack needle} {
regexp -all ***=$needle $haystack
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