[Kst] [Bug 135354] New: crash when equation contains [scalar][scalar]

[Nicolas Brisset]

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http://bugs.kde.org/show_bug.cgi?id=135354         
           Summary: crash when equation contains [scalar][scalar]
           Product: kst
           Version: unspecified
          Platform: unspecified
        OS/Version: Solaris
            Status: NEW
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kst kde org
        ReportedBy: nicolas.brisset eurocopter com


Version:           1.3.1_devel (using KDE 3.4.0, compiled sources)
Compiler:          gcc version 3.4.3
OS:                SunOS (sun4u) release 5.8

There is a problem in the equation parser, which leads to a crash. To reproduce:
1) load column 1 vs INDEX from gyrodata.dat
2) create an equation with [1]+[C_PI][C_PI] and "INDEX" as X vector
3) Hit "OK": crash!

It should either recognize [C_PI][C_PI] as [C_PI]*[C_PI] and do it correctly, or invalidate the syntax.
The way [1][1] is handled leaves me quite puzzled :-( But it does not seem to be very clean, as kst crashes upon exit (or even before) even though it is less obvious than the previous case.