private static void Main(string[] args)
{
var perform = Option.ShowHelp;
// check pipe
var pipedText = "";
bool isKeyAvailable;
var piped = false;
try { isKeyAvailable = Console.KeyAvailable; }
catch { pipedText = Console.In.ReadToEnd(); piped = true; }
var expr = "";
var inpfile = "";
var inpdata = "";
var format = "{0}";
var showAll = true;
var expr2 = "";
var showSteps = false;
// check input arguments
for (var i = 0; i < args.Length; i++)
{
if (args[i] == "-help" || args[i] == "--help" || args[i] == "-?")
{
perform = Option.ShowHelp;
break;
}
if (args[i] == "-f")
{
if (args.Length < i + 1)
{
Error("Insufficient args -f");
}
format = args[i + 1];
i++;
}
else if (args[i] == "-o")
{
if (args.Length < i + 1)
{
Error("Insufficient args -o");
}
inpfile = args[i + 1];
i++;
}
else if (args[i] == "-i")
{
if (args.Length < i + 1)
{
Error("Insufficient args -i");
}
inpdata = args[i + 1];
i++;
}
else if (args[i] == "-e")
{
if (args.Length < i + 1)
{
Error("Insufficient args for -e");
}
expr2 = args[i + 1];
showAll = false;
i++;
perform = Option.DoMath;
}
else if (args[i] == "-x")
{
showAll = false;
}
else if (args[i] == "-d")
{
showSteps = true;
}
else
{
perform = Option.DoMath;
expr += " " + args[i];
}
}
// Print header
if (perform == Option.ShowHelp)
{
Console.WriteLine(@"Usage: math [OPTIONS] EXPRESSION
-f FORMAT Default is {0}. C# convention:
https://msdn.microsoft.com/en-us/library/0c899ak8(v=vs.110).aspx
Scientific: {0:0.0000E+00}
Decimal, optional decimals: {0:0.##########}
With text: " + "\"Ans={0:0.00000}\"" + @"
-o FILE Use FILE as input to EXPRESSION
-i DATA Use DATA as input to EXPRESSION (comma-seperated)
-x Only write last line
-d Show evaluation steps
-e EXPRESISION
Calculate this expression after all other are calculated.
Only this line is written.
Calcualte the math expression given in EXPRESSION.
If FILE or pipe is given, EXPRESSION is evaulated for each given line.
If DATA is given, EXPRESSION is evalueted for each given line in DATA. Seperate lines with ','.
$1, $2,.. returns the delimited numbers from each given line.
$-1, $-2,.. returns the reverse delimited numbers from each given line.
$0 is equal to the previous evaluated line.
$N is equal to the line number.
$A is an array of all previous results.
Simple functions:
log,ln,exp,gamma,fact,abs,floor,ceil,sqrt,
cos,sin,tan,acos,asin,atan,cosh,sinh,tanh
Multiple argument functions:
sum,max,min,amin,amax,stdev,skew,kurt,avrg,round
count
Operators: ^,*,/,+,- standard math operators
!,% factorial and reminder
<,>,=,&,| comparison. 0 (false) / 1 or any number (true)
Version 1.0. Report bugs to <*****@*****.**>");
Environment.Exit(0);
}
// open file
if (inpfile != "")
{
try {
piped = true;
pipedText = File.ReadAllText(inpfile);
}
catch { Error("Unable to open file: " + inpfile); }
}
else if (inpdata != "")
{
try
{
piped = true;
pipedText = inpdata.Replace(",", "\n");
}
catch { Error("Unable to open file: " + inpfile); }
}
var evalLines = new List <string>();
if (piped)
{
evalLines = pipedText.Split('\n').ToList();
}
else
{
evalLines.Add("0");
}
double last = 0;
var count = 0;
var results = new List <double>();
if (string.IsNullOrEmpty(expr))
{
expr = "$1";
}
var eval = new MathEvalWrapper();
foreach (var input in evalLines)
{
var line = input.Replace("\r", "").Replace(",", " ").Replace("\t", " ").ToLower().Trim();
line = Regex.Replace(line, @"\s+", " ");
if (line.StartsWith("#"))
{
continue;
}
if (line.Length == 0)
{
continue;
}
count++;
eval.SetExpression(expr, line);
var res = eval.GetResult();
if (showSteps)
{
foreach (var entry in eval.History)
{
Console.WriteLine(entry);
}
}
results.Add(res);
if (showAll)
{
try
{
Console.WriteLine(format, res);
}
catch { Error("Invalid format specified with -f: " + format); }
}
last = res;
}
if (!showAll)
{
if (expr2 != "")
{
eval.LockLineNumber();
eval.SetExpression(expr2);
last = eval.GetResult();
}
try
{
Console.WriteLine(format, last);
}
catch { Error("Invalid format specified with -f: " + format); }
}
#if DEBUG
Console.ReadKey();
#endif
}
static void Main(string[] args)
{
Option perform = Option.ShowHelp;
// check pipe
String pipedText = "";
bool isKeyAvailable;
bool piped = false;
try { isKeyAvailable = System.Console.KeyAvailable; }
catch { pipedText = System.Console.In.ReadToEnd(); piped = true; }
string expr = "";
string inpfile = "";
string format = "{0}";
bool showAll = true;
string expr2 = "";
bool showSteps = false;
// check input arguments
for (int i = 0; i < args.Length; i++)
{
if (args[i] == "-help" || args[i] == "--help" || args[i] == "-?")
perform = Option.ShowHelp;
else if (args[i] == "-f")
{
if (args.Length < i + 1) Error("Insufficient args -f");
format = args[i + 1];
i++;
}
else if (args[i] == "-o")
{
if (args.Length < i + 1) Error("Insufficient args -o");
inpfile = args[i + 1];
i++;
}
else if (args[i] == "-e")
{
if (args.Length < i + 1) Error("Insufficient args for -e");
expr2 = args[i + 1];
showAll = false;
i++;
}
else if (args[i] == "-x")
{
showAll = false;
}
else if (args[i] == "-d")
{
showSteps = true;
}
else
{
perform = Option.DoMath;
expr += " " + args[i];
}
}
// Print header
if (perform == Option.ShowHelp)
{
Console.WriteLine(@"Usage: math [OPTIONS] EXPRESSION
-f FORMAT Default is {0}. C# convention:
https://msdn.microsoft.com/en-us/library/0c899ak8(v=vs.110).aspx
Scientific: {0:0.0000E+00}
Decimal, optional decimals: {0:0.##########}
With text: "+"\"Ans={0:0.00000}\""+ @"
-o FILE Use FILE as input to EXPRESSION
-x Only write last line
-d Show evaluation steps
-e EXPRESISION
Calculate this expression after all other are calculated.
Only this line is written.
Calcualte the math expression given in EXPRESSION.
If FILE or pipe is given, EXPRESSION is evaulated for each given line.
$1, $2,.. returns the delimited numbers from each given line.
$-1, $-2,.. returns the reverse delimited numbers from each given line.
$0 is equal to the previous evaluated line.
$N is equal to the line number.
$A is an array of all previous results.
Simple functions:
log,ln,exp,gamma,fact,abs,floor,ceil,sqrt,
cos,sin,tan,acos,asin,atan,cosh,sinh,tanh
Multiple argument functions:
sum,max,min,amin,amax,stdev,skew,kurt,avrg,round
Operators: ^,*,/,+,- standard math operators
!,% factorial and reminder
<,>,=,&,| comparison. 0 (false) / 1 or any number (true)
Version 1.0. Report bugs to <*****@*****.**>");
Environment.Exit(0);
}
// open file
if (inpfile != "")
{
try {
piped = true;
pipedText = File.ReadAllText(inpfile);
}
catch { Error("Unable to open file: " + inpfile); }
}
List<string> evalLines = new List<string>();
if (piped)
{
evalLines = pipedText.Split('\n').ToList();
}
else
{
evalLines.Add("0");
}
double last = 0;
int count = 0;
List<double> results = new List<double>();
MathEvalWrapper eval = new MathEvalWrapper(showSteps);
foreach (string input in evalLines)
{
string line = input.Replace("\r", "").Replace(",", " ").Replace("\t", " ").ToLower().Trim();
line = System.Text.RegularExpressions.Regex.Replace(line, @"\s+", " ");
if (line.StartsWith("#")) continue;
if (line.Length == 0) continue;
count++;
eval.SetExpression(expr, line);
double res = eval.GetResult();
results.Add(res);
if (showAll)
{
try
{
Console.WriteLine(format, res);
}
catch { Error("Invalid format specified with -f: " + format); }
}
last = res;
}
if (!showAll)
{
if (expr2 != "")
{
eval.LockLineNumber();
eval.SetExpression(expr2);
last = eval.GetResult();
}
try
{
Console.WriteLine(format, last);
}
catch { Error("Invalid format specified with -f: " + format); }
}
#if DEBUG
Console.ReadKey();
#endif
}
