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Ignore case in Regular Expression Archive Perl - an i after the regular expressionPHP - use eregi rather than ereg Python - extra parameters to the compile methodTcl - this option is available on regexes in Tclarray names command. And here you can use the embedded notation of the form (?i). Here's an example - in Tcl, but this technique works for most languages these days! set results [array names table -regexp (?i)$where]
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