Chemical calculator: Difference between revisions
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Line 309:
UueCl : 350.450
</pre>
=={{header|C#}}==
{{trans|D}}
<lang csharp>using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ChemicalCalculator {
class Program {
static Dictionary<string, double> atomicMass = new Dictionary<string, double>() {
{"H", 1.008 },
{"He", 4.002602},
{"Li", 6.94},
{"Be", 9.0121831},
{"B", 10.81},
{"C", 12.011},
{"N", 14.007},
{"O", 15.999},
{"F", 18.998403163},
{"Ne", 20.1797},
{"Na", 22.98976928},
{"Mg", 24.305},
{"Al", 26.9815385},
{"Si", 28.085},
{"P", 30.973761998},
{"S", 32.06},
{"Cl", 35.45},
{"Ar", 39.948},
{"K", 39.0983},
{"Ca", 40.078},
{"Sc", 44.955908},
{"Ti", 47.867},
{"V", 50.9415},
{"Cr", 51.9961},
{"Mn", 54.938044},
{"Fe", 55.845},
{"Co", 58.933194},
{"Ni", 58.6934},
{"Cu", 63.546},
{"Zn", 65.38},
{"Ga", 69.723},
{"Ge", 72.630},
{"As", 74.921595},
{"Se", 78.971},
{"Br", 79.904},
{"Kr", 83.798},
{"Rb", 85.4678},
{"Sr", 87.62},
{"Y", 88.90584},
{"Zr", 91.224},
{"Nb", 92.90637},
{"Mo", 95.95},
{"Ru", 101.07},
{"Rh", 102.90550},
{"Pd", 106.42},
{"Ag", 107.8682},
{"Cd", 112.414},
{"In", 114.818},
{"Sn", 118.710},
{"Sb", 121.760},
{"Te", 127.60},
{"I", 126.90447},
{"Xe", 131.293},
{"Cs", 132.90545196},
{"Ba", 137.327},
{"La", 138.90547},
{"Ce", 140.116},
{"Pr", 140.90766},
{"Nd", 144.242},
{"Pm", 145},
{"Sm", 150.36},
{"Eu", 151.964},
{"Gd", 157.25},
{"Tb", 158.92535},
{"Dy", 162.500},
{"Ho", 164.93033},
{"Er", 167.259},
{"Tm", 168.93422},
{"Yb", 173.054},
{"Lu", 174.9668},
{"Hf", 178.49},
{"Ta", 180.94788},
{"W", 183.84},
{"Re", 186.207},
{"Os", 190.23},
{"Ir", 192.217},
{"Pt", 195.084},
{"Au", 196.966569},
{"Hg", 200.592},
{"Tl", 204.38},
{"Pb", 207.2},
{"Bi", 208.98040},
{"Po", 209},
{"At", 210},
{"Rn", 222},
{"Fr", 223},
{"Ra", 226},
{"Ac", 227},
{"Th", 232.0377},
{"Pa", 231.03588},
{"U", 238.02891},
{"Np", 237},
{"Pu", 244},
{"Am", 243},
{"Cm", 247},
{"Bk", 247},
{"Cf", 251},
{"Es", 252},
{"Fm", 257},
{"Uue", 315},
{"Ubn", 299},
};
static double Evaluate(string s) {
s += "[";
double sum = 0.0;
string symbol = "";
string number = "";
for (int i = 0; i < s.Length; ++i) {
var c = s[i];
if ('@' <= c && c <= '[') {
// @, A-Z
int n = 1;
if (number != "") {
n = int.Parse(number);
}
if (symbol != "") {
sum += atomicMass[symbol] * n;
}
if (c == '[') {
break;
}
symbol = c.ToString();
number = "";
} else if ('a' <= c && c <= 'z') {
symbol += c;
} else if ('0' <= c && c <= '9') {
number += c;
} else {
throw new Exception(string.Format("Unexpected symbol {0} in molecule", c));
}
}
return sum;
}
// Taken from return text.Substring(0, pos) + replace + text.Substring(pos + search.Length);
static string ReplaceFirst(string text, string search, string replace) {
int pos = text.IndexOf(search);
if (pos < 0) {
return text;
}
return text.Substring(0, pos) + replace + text.Substring(pos + search.Length);
}
static string ReplaceParens(string s) {
char letter = 's';
while (true) {
var start = s.IndexOf('(');
if (start == -1) {
break;
}
for (int i = start + 1; i < s.Length; ++i) {
if (s[i] == ')') {
var expr = s.Substring(start + 1, i - start - 1);
var symbol = string.Format("@{0}", letter);
s = ReplaceFirst(s, s.Substring(start, i + 1 - start), symbol);
atomicMass[symbol] = Evaluate(expr);
letter++;
break;
}
if (s[i] == '(') {
start = i;
continue;
}
}
}
return s;
}
static void Main() {
var molecules = new string[]{
"H", "H2", "H2O", "H2O2", "(HO)2", "Na2SO4", "C6H12",
"COOH(C(CH3)2)3CH3", "C6H4O2(OH)4", "C27H46O", "Uue"
};
foreach (var molecule in molecules) {
var mass = Evaluate(ReplaceParens(molecule));
Console.WriteLine("{0,17} -> {1,7:0.000}", molecule, mass);
}
}
}
}</lang>
{{out}}
<pre> H -> 1.008
H2 -> 2.016
H2O -> 18.015
H2O2 -> 34.014
(HO)2 -> 34.014
Na2SO4 -> 142.036
C6H12 -> 84.162
COOH(C(CH3)2)3CH3 -> 186.295
C6H4O2(OH)4 -> 176.124
C27H46O -> 386.664
Uue -> 315.000</pre>
=={{header|CoffeeScript}}==
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