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FCMapWithProgressBar #56

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FCMapWithProgressBar #56

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34 changes: 33 additions & 1 deletion FeynCalc/Shared/SharedTools.m
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Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,10 @@ will generate a warning (when running with the frontend) or quit kernel (when \
FeynArts or QGAF into the FeynCalc notation. It uses memoization to improve the \
performance."

FCMapWithProgressBar::usage =
"FCMapWithProgressBar[f, expr] is like Map[f,@expr] but with a graphical
progress bar to show the progress of the evaluation.";

FCPatternFreeQ::usage =
"FCPatternFreeQ[{exp}] yields True if {exp} does not contain any \
pattern objects, e.g. Pattern, Blank, BlankSequence and BlankNullSequence. \n
Expand Down Expand Up @@ -247,7 +251,10 @@ an integer (even if it is symbolic). Furthermore \
appends the subset of remaining unmatched elements.";

XYT::usage=
"XYT[exp, x,y] transforms (x y)^m away ..."
"XYT[exp, x,y] transforms (x y)^m away ...";

FCMapWithProgressBar::failmsg = "Error! FCMapWithProgressBar has encountered a fatal problem and must abort the computation. \n
The problem reads: `1`";

FCProductSplit::failmsg = "Error! FCProductSplit has encountered a fatal problem and must abort the computation. \n
The problem reads: `1`";
Expand Down Expand Up @@ -512,6 +519,31 @@ an integer (even if it is symbolic). Furthermore \
head[ToExpression[x <> "Minus" <> ToString[-y]]]
]/; y < 0;


FCMapWithProgressBar[x_, y_, OptionsPattern[]] :=
Block[{iter = 0, len= Length[y], xNew, res},

If[ Head[x] =!= Function,
Message[FCMapWithProgressBar::failmsg,"The head of the first argument must be a Function"];
Abort[]
];

If[ $FrontEnd===Null,
(*No FrontEnd*)
FCPrint[0, "Unfortunately, the progress bar requires the graphical Front End."];
(*TODO: Command line implementation, cf. https://mathematica.stackexchange.com/questions/183632/any-ergonomic-tools-for-the-command-line-kernel *)
res = Map[x,y],
(*FrontEnd is available*)
xNew = x /. Function[z_] :> Function[CompoundExpression[iter++, z]];
Monitor[
res = Map[xNew, y],
Grid[{{ProgressIndicator[iter, {1, len}]}, {Row[{iter, "/", len}]}}]
]
];

res
];

FCFactorOut[expr_,pref_,OptionsPattern[]]:=
pref OptionValue[Head][OptionValue[Factoring][expr/pref]];

Expand Down