tcl, string match fails for strings containing "["

string match fails for strings containing "["

Author	Message
Jeffrey Hobb #1 / 3	string match fails for strings containing "[" Quote: > Tcl 8.2.1 Bug: Generated by Scriptics' bug entry form at > Submitted by: Jim Russell > Synopsis: string match fails for strings containing "[" > ReproducibleScript: > From tclsh8.2 command line I typed: > set a {i[0]} > set b $a > string match $a $b > ObservedBehavior: > Setting b to the value of a should result in a successful match when comparing a to b. This is erroneous, because the [] are special characters in glob matching, so you are really asking: string match i0 {i[0]} If you want to avoid mistakes like this, use [string equal]. -- Jeffrey Hobbs The Tcl Guy jeffrey.hobbs at scriptics.com Scriptics Corp.
Sat, 27 Apr 2002 03:00:00 GMT

jim.russ.. #2 / 3	string match fails for strings containing "[" Tcl 8.2.1 Bug: Generated by Scriptics' bug entry form at http://www.scriptics.com/support/bugForm.html Responses to this post are encouraged. ------ Submitted by: Jim Russell OperatingSystem: sunos Machine: x86 solaris, AMD microprocessor CustomShell: No. Synopsis: string match fails for strings containing "[" ReproducibleScript: From tclsh8.2 command line I typed: set a {i[0]} set b $a string match $a $b ObservedBehavior: Setting b to the value of a should result in a successful match when comparing a to b. DesiredBehavior: I would expect the string match to return "1".
Sun, 28 Apr 2002 03:00:00 GMT

Paul Duffi #3 / 3	string match fails for strings containing "[" Quote: > Tcl 8.2.1 Bug: Generated by Scriptics' bug entry form at > http://www.scriptics.com/support/bugForm.html > Responses to this post are encouraged. > ------ > Submitted by: Jim Russell > OperatingSystem: sunos > Machine: x86 solaris, AMD microprocessor > CustomShell: No. > Synopsis: string match fails for strings containing "[" > ReproducibleScript: > From tclsh8.2 command line I typed: > set a {i[0]} > set b $a > string match $a $b > ObservedBehavior: > Setting b to the value of a should result in a successful match when comparing a to b. > DesiredBehavior: > I would expect the string match to return "1". Read the manual, [string match] takes a glob style pattern and a string, not two plain strings. [] have special meaning in glob style patterns. If you want to compare two strings use [string compare] or [string equal] if available.
Sun, 28 Apr 2002 03:00:00 GMT

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