[Help-glpk] Passing command line paramters to GLPK

[glpk xypron]

Hello Andrew,

data bases will often contain multiple problem instances. Currently to select a 
problem instance it is necessary to edit the model or the data file passed to 
GLPSOL. It would be useful if the problem instance could be passed on the 
command line.

My implementation idea is to add an option -v to be used as follows:

./glpsol -m model.mod -v var1=val1 -v var2=val2 ...

Internally this should create a set
set _ARGV := var1 var2;
and a parameter
param _ARGP := 
  [var1] val1
  [var2] val2;

A usage example is:

table ti IN
  'MySQL'
  'Database=glpk;UID=glpk;PWD=gnu'
  'SELECT COL, LIN, VAL FROM sudoku WHERE ID = ' & _ARGP['ID'] :
  FIELDS <- [COL, LIN], givens ~ VAL;

Best regards

Xypron
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