Decision tables: Difference between revisions
Added Wren
(Added Wren) |
|||
Line 2,394:
Ensure printer software is installed
Check/replace ink
</pre>
=={{header|Wren}}==
{{trans|Kotlin}}
{{libheader|Wren-str}}
<lang ecmascript>import "io" for Stdin, Stdout
import "/str" for Str
var conditions = [
["Printer prints" , "NNNNYYYY"],
["A red light is flashing" , "YYNNYYNN"],
["Printer is recognized by computer", "NYNYNYNY"]
]
var actions = [
["Check the power cable" , "NNYNNNNN"],
["Check the printer-computer cable" , "YNYNNNNN"],
["Ensure printer software is installed", "YNYNYNYN"],
["Check/replace ink" , "YYNNNYNN"],
["Check for paper jam" , "NYNYNNNN"]
]
var nc = conditions.count
var na = actions.count
var nr = conditions[0][1].count // number of rules
var np = 7 // index of 'no problem' rule
System.print("Please answer the following questions with a y or n:")
var answers = List.filled(nc, false)
for (c in 0...nc) {
var input
while (true) {
System.write(" %(conditions[c][0]) ? ")
Stdout.flush()
input = Str.upper(Stdin.readLine())
if (input == "Y" || input == "N") break
}
answers[c] = (input == "Y")
}
System.print("\nRecommended action(s):")
for (r in 0...nr) {
var outer = false
for (c in 0...nc) {
var yn = answers[c] ? "Y" : "N"
if (conditions[c][1][r] != yn) {
outer = true
break
}
}
if (!outer) {
if (r == np) {
System.print(" None (no problem detected)")
} else {
for (a in 0...na) {
if (actions[a][1][r] == "Y") System.print(" %(actions[a][0])")
}
}
break
}
}</lang>
{{out}}
Sample input/output:
<pre>
Please answer the following questions with a y or n:
Printer prints ? n
A red light is flashing ? n
Printer is recognized by computer ? n
Recommended action(s):
Check the power cable
Check the printer-computer cable
Ensure printer software is installed
</pre>
| |||