[ET Trac] [Einstein Toolkit] #1290: parameter file parser fails to parse parameter name

[Einstein Toolkit]

#1290: parameter file parser fails to parse parameter name
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  Reporter:  rhaas   |       Owner:     
      Type:  defect  |      Status:  new
  Priority:  minor   |   Milestone:     
 Component:  Cactus  |     Version:     
Resolution:          |    Keywords:     
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Comment (by rhaas):

 apparently the parser requires whitespace between operators and parameter
 name. From the error text it even seems as if it tries to accept "/" as
 part of the parameter name. Cactus already limits that allowed letters in
 parameter names to [A-Za-z]{A-Za-z0-9_]* [plus the :: to separate thorn
 from parameter part] so that (possibly with more stuff for [] of parameter
 vectors) would seem like a sufficiently large class to include. having to
 have  to separate operators from variable names by white space is unheard
 of in any programming language that I have ever worked with (even Tcl
 which allows *anything* incl "/" and the empty string for variable names
 will require that it is referred to as ${/} when its value is needed).

 So
 {{{
 EOS_Omni::poly_k =
 grhydro_initdata::rotor_pressin/grhydro_initdata::rotor_rhoin**EOS_Omni::gl_gamma
 }}}
 fails, but
 {{{
 EOS_Omni::poly_k = grhydro_initdata::rotor_pressin /
 grhydro_initdata::rotor_rhoin ** EOS_Omni::gl_gamma
 }}}
 works.

-- 
Ticket URL: <https://trac.einsteintoolkit.org/ticket/1290#comment:1>
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