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String functions in TCL Posted by shafa.fahad (shafa.fahad), 31 August 2006 Hi,I am relatively new to TCL... I have been trying to extract a particular string from a variable which has multiple strings. couldn't find the appropriate functions for it... I have a variable var, i.e., set var "this is the string which i have" Q: i want to check if the variable var has "which" in it, if so it should reutrn 1 else -1 (or even 0) ? it would be helpful if i can get some ideas for the same Posted by admin (Graham Ellis), 31 August 2006 set posn [string first which $var]Will set posn to -i if "which" isn't in $var, or the position it starts at if it IS in there. In Tcl, everything's a command, so do your test in square brackets. If you write if {[string first which $var] > -1} { you can perform a test / select a piece of code based on whether or not "which" occurs in your string. Posted by shafa.fahad (shafa.fahad), 31 August 2006 Thanks Graham,That was really helpful... Also I would like to know how to retrieve the string following the string which is found? say, set var "/usr/bin/ksh utils/mailMover ms01.mac.com" if {[string first "/mailMover " $var] > -1} { puts "Here it should print ms01.mac.com" } Please let me the appropriate function for the same.... Thanks in advance Fahad Posted by admin (Graham Ellis), 31 August 2006 In Tcl, everything's a command use the string first command to find the "break point", then the string range command to extract the part you want. The code would read something like: set lastpart [string range $var [string index " " $var] end] Posted by shafa.fahad (shafa.fahad), 31 August 2006 Thanks Graham.... This page is a thread posted to the opentalk forum
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