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tabsubst.gms : tab and string subsitution for long line

Early cmex implementations expanded tabs with looking at the total
length of the line. We also make sure long line due to string
subsitutions get rejected.
                                1         2         3         4         5         0
                       123456789012345678901234567890123456789012345678901234567890
  assume we have enough space with 40000 line length
  now we go beyond the max length and should get ane error
Small Model of Type: GAMS
$title tab and string substitution for long line (TABSUBST,SEQ=474) $ontext Early cmex implementations expanded tabs with looking at the total length of the line. We also make sure long line due to string subsitutions get rejected. $offtext $echo %system.tab%%aaa%display 'this statement has a total length of 50'; > tabtmp.gms * 1 2 3 4 5 0 * 123456789012345678901234567890123456789012345678901234567890 * assume we have enough space with 40000 line length $echo --aaa="" > pf.txt $call gams tabtmp tabin 39940 lo=%gams.lo% pf=pf.txt $if errorlevel 1 $abort should be OK * now we go beyond the max length and should get ane error $echo eolonly 1 > pf.txt $echo --aaa=display 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'; >> pf.txt $call gams tabtmp tabin 39940 lo=%gams.lo% pf=pf.txt $if NOT errorlevel 1 $abort should fail $echo scalar x;%system.tab%x=1;x=1;x=1;x=1;x=1;x=1;x=1;x=1;x=1;x=1; > tabtmp.gms $call gams tabtmp tabin 39960 lo=%gams.lo% $if NOT errorlevel 1 $abort should fail