38 lines
1.3 KiB
D
38 lines
1.3 KiB
D
void main() {
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import std.stdio, std.array, std.string, std.regex, std.conv,
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std.algorithm;
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auto rxDate = `^\d\d\d\d-\d\d-\d\d$`.regex;
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// Works but eats lot of RAM in DMD 2.064.
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// auto rxDate = ctRegex!(`^\d\d\d\d-\d\d-\d\d$`);
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int[string] repeatedDates;
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int goodReadings;
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foreach (string line; "readings.txt".File.lines) {
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try {
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auto parts = line.split;
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if (parts.length != 49)
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throw new Exception("Wrong column count");
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if (parts[0].match(rxDate).empty)
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throw new Exception("Date is wrong");
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repeatedDates[parts[0]]++;
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bool noProblem = true;
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for (int i = 1; i < 48; i += 2) {
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if (parts[i + 1].to!int < 1)
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// don't break loop because it's validation too.
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noProblem = false;
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if (!parts[i].isNumeric)
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throw new Exception("Reading is wrong: "~parts[i]);
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}
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if (noProblem)
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goodReadings++;
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} catch(Exception ex) {
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writefln(`Problem in line "%s": %s`, line, ex);
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}
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}
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writefln("Duplicated timestamps: %-(%s, %)",
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repeatedDates.byKey.filter!(k => repeatedDates[k] > 1));
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writeln("Good reading records: ", goodReadings);
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}
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