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September 2017 Update

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This commit is contained in:
Ingy döt Net 2017-09-23 10:01:46 +02:00
parent bba7bfd280
commit ba8067c3b7
14570 changed files with 153136 additions and 63871 deletions
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38
Task/Arithmetic-evaluation/Sidef/arithmetic-evaluation-1.sidef
View file

@ -3,54 +3,54 @@ func evalArithmeticExp(s) {
func evalExp(s) {
func operate(s, op) {
s.split(op).map{|c| c.to_num }.reduce(op);
s.split(op).map{|c| Number(c) }.reduce(op)
}
func add(s) {
operate(s.sub(/^\+/,'').sub(/\++/,'+'), '+');
operate(s.sub(/^\+/,'').sub(/\++/,'+'), '+')
}
func subtract(s) {
s.gsub!(/(\+-|-\+)/,'-');
s.gsub!(/(\+-|-\+)/,'-')
if (s ~~ /--/) {
return(add(s.sub(/--/,'+')));
return(add(s.sub(/--/,'+')))
}
var b = s.split('-');
b.len == 3 ? (-1*b[1].to_num - b[2].to_num)
: operate(s, '-');
var b = s.split('-')
b.len == 3 ? (-1*Number(b[1]) - Number(b[2]))
: operate(s, '-')
}
s.gsub!(/[()]/,'').gsub!(/-\+/, '-');
s.gsub!(/[()]/,'').gsub!(/-\+/, '-')
var reM = /\*/;
var reMD = %r"(\d+\.?\d*\s*[*/]\s*[+-]?\d+\.?\d*)";
var reM = /\*/
var reMD = %r"(\d+\.?\d*\s*[*/]\s*[+-]?\d+\.?\d*)"
var reA = /\d\+/;
var reAS = /(-?\d+\.?\d*\s*[+-]\s*[+-]?\d+\.?\d*)/;
var reA = /\d\+/
var reAS = /(-?\d+\.?\d*\s*[+-]\s*[+-]?\d+\.?\d*)/
while (var match = reMD.match(s)) {
match[0] ~~ reM
? s.sub!(reMD, operate(match[0], '*').to_s)
: s.sub!(reMD, operate(match[0], '/').to_s);
: s.sub!(reMD, operate(match[0], '/').to_s)
}
while (var match = reAS.match(s)) {
match[0] ~~ reA
? s.sub!(reAS, add(match[0]).to_s)
: s.sub!(reAS, subtract(match[0]).to_s);
: s.sub!(reAS, subtract(match[0]).to_s)
}
return s;
return s
}
var rePara = /(\([^\(\)]*\))/;
s.split!.join!('').sub!(/^\+/,'');
var rePara = /(\([^\(\)]*\))/
s.split!.join!('').sub!(/^\+/,'')
while (var match = s.match(rePara)) {
s.sub!(rePara, evalExp(match[0]));
s.sub!(rePara, evalExp(match[0]))
}
return evalExp(s).to_num;
return Number(evalExp(s))
}

6
Task/Arithmetic-evaluation/Sidef/arithmetic-evaluation-2.sidef
View file

@ -7,7 +7,7 @@ for expr,res in [
['2*-3--4+-0.25' => -2.25],
['2 * (3 + (4 * 5 + (6 * 7) * 8) - 9) * 10' => 7000],
] { 
var num = evalArithmeticExp(expr);
assert_eq(num, res);
"%-45s == %10g\n".printf(expr, num);
var num = evalArithmeticExp(expr)
assert_eq(num, res)
"%-45s == %10g\n".printf(expr, num)
}