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Calculator - Human multiplication expressions (#24655)

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* fixes #20187

* handles PR reviews
- fix some typos
- updated dev docs
- added PR examples to tests
- improve method naming style

* Fix typo

Co-authored-by: Stefan Markovic <57057282+stefansjfw@users.noreply.github.com>

---------

Co-authored-by: José Javier Rodríguez Zas <jj.jobs2live@outlook.com>
Co-authored-by: Stefan Markovic <57057282+stefansjfw@users.noreply.github.com>
This commit is contained in:
José Javier Rodríguez Zas (JJ)
2023-03-10 21:48:04 +01:00
committed by GitHub
parent c72a6cb9d4
commit cc708e7ac5
5 changed files with 250 additions and 5 deletions
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136
src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.Calculator/CalculateHelper.cs
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@@ -48,5 +48,141 @@ namespace Microsoft.PowerToys.Run.Plugin.Calculator
return true;
}
public static string FixHumanMultiplicationExpressions(string input)
{
var output = CheckNumberOrConstantThenParenthesisExpr(input);
output = CheckNumberOrConstantThenFunc(output);
output = CheckParenthesisExprThenFunc(output);
output = CheckParenthesisExprThenParenthesisExpr(output);
output = CheckNumberThenConstant(output);
output = CheckConstantThenConstant(output);
return output;
}
/*
* num (exp)
* const (exp)
*/
private static string CheckNumberOrConstantThenParenthesisExpr(string input)
{
var output = input;
do
{
input = output;
output = Regex.Replace(input, @"(\d+|pi|e)\s*(\()", m =>
{
if (m.Index > 0 && char.IsLetter(input[m.Index - 1]))
{
return m.Value;
}
return $"{m.Groups[1].Value} * {m.Groups[2].Value}";
});
}
while (output != input);
return output;
}
/*
* num func
* const func
*/
private static string CheckNumberOrConstantThenFunc(string input)
{
var output = input;
do
{
input = output;
output = Regex.Replace(input, @"(\d+|pi|e)\s*([a-zA-Z]+[0-9]*\s*\()", m =>
{
if (input[m.Index] == 'e' && input[m.Index + 1] == 'x' && input[m.Index + 2] == 'p')
{
return m.Value;
}
if (m.Index > 0 && char.IsLetter(input[m.Index - 1]))
{
return m.Value;
}
return $"{m.Groups[1].Value} * {m.Groups[2].Value}";
});
}
while (output != input);
return output;
}
/*
* (exp) func
* func func
*/
private static string CheckParenthesisExprThenFunc(string input)
{
var p = @"(\))\s*([a-zA-Z]+[0-9]*\s*\()";
var r = "$1 * $2";
return Regex.Replace(input, p, r);
}
/*
* (exp) (exp)
* func (exp)
*/
private static string CheckParenthesisExprThenParenthesisExpr(string input)
{
var p = @"(\))\s*(\()";
var r = "$1 * $2";
return Regex.Replace(input, p, r);
}
/*
* num const
*/
private static string CheckNumberThenConstant(string input)
{
var output = input;
do
{
input = output;
output = Regex.Replace(input, @"(\d+)\s*(pi|e)", m =>
{
if (m.Index > 0 && char.IsLetter(input[m.Index - 1]))
{
return m.Value;
}
return $"{m.Groups[1].Value} * {m.Groups[2].Value}";
});
}
while (output != input);
return output;
}
/*
* const const
*/
private static string CheckConstantThenConstant(string input)
{
var output = input;
do
{
input = output;
output = Regex.Replace(input, @"(pi|e)\s*(pi|e)", m =>
{
if (m.Index > 0 && char.IsLetter(input[m.Index - 1]))
{
return m.Value;
}
return $"{m.Groups[1].Value} * {m.Groups[2].Value}";
});
}
while (output != input);
return output;
}
}
}