Decision tables: Difference between revisions
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{{trans|Kotlin}}
{{libheader|Wren-str}}
<syntaxhighlight lang="
import "./str" for Str
var conditions = [
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{{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>
=={{header|XPL0}}==
{{trans|Wren}}
<syntaxhighlight lang "XPL0">include xpllib; \for ToUpper, Print
int Conditions, Actions, NC, NA, NR, NP, Answers(3), Input, Outer, YN, R, C, A;
char S;
[Conditions:= [
["Printer prints" , "NNNNYYYY"],
["A red light is flashing" , "YYNNYYNN"],
["Printer is recognized by computer", "NYNYNYNY"]
];
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"]
];
NC:= 3;
NA:= 5;
NR:= 8; \number of rules
NP:= 7; \index of 'no problem' rule
Print("Please answer the following questions with a y or n:\n");
for C:= 0 to NC-1 do
[loop [Print(" %s ? ", Conditions(C,0));
OpenI(0);
Input:= ToUpper(ChIn(0));
if Input = ^Y or Input = ^N then quit;
];
Answers(C):= Input = ^Y;
];
Print("\nRecommended action(s):\n");
for R:= 0 to NR-1 do
[Outer:= false;
for C:= 0 to NC-1 do
[YN:= if Answers(C) then ^Y else ^N;
S:= Conditions(C,1); \to access character bytes not integers
if S(R) # YN then
[Outer:= true;
C:= NC; \break
];
];
if not Outer then
[if R = NP then
Print(" None (no problem detected)\n")
else [for A:= 0 to NA-1 do
[S:= Actions(A,1);
if S(R) = ^Y then
Print(" %s\n", Actions(A,0));
];
];
R:= NR; \break
];
];
]</syntaxhighlight>
{{out}}
<pre>
Please answer the following questions with a y or n:
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