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Improve DurationParser regex

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Luck 2019-12-25 00:04:39 +00:00
parent 96c53091d0
commit 0e64b61be4
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2 changed files with 46 additions and 51 deletions
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58
common/src/main/java/me/lucko/luckperms/common/util/DurationFormatter.java
View File

@ -73,12 +73,38 @@ public enum DurationFormatter {
}
DurationFormatter(int accuracy) {
if (accuracy <= 0) {
throw new IllegalArgumentException("accuracy must be >= 1");
}
this.accuracy = accuracy;
}
/**
* Formats {@code duration} as a string.
*
* @param duration the duration
* @return the formatted string
*/
public String format(Duration duration) {
long seconds = duration.getSeconds();
StringBuilder output = new StringBuilder();
int outputSize = 0;
for (Unit unit : this.units) {
long n = seconds / unit.duration;
if (n > 0) {
seconds -= unit.duration * n;
output.append(' ').append(n).append(unit.toString(n));
outputSize++;
}
if (seconds <= 0 || outputSize >= this.accuracy) {
break;
}
}
if (output.length() == 0) {
return "0" + this.units[this.units.length - 1].stringPlural;
}
return output.substring(1);
}
protected String formatUnitPlural(ChronoUnit unit) {
return " " + unit.name().toLowerCase();
}
@ -104,30 +130,4 @@ public enum DurationFormatter {
}
}
private String format(long seconds) {
StringBuilder output = new StringBuilder();
int outputSize = 0;
for (Unit unit : this.units) {
long n = seconds / unit.duration;
if (n > 0) {
seconds -= unit.duration * n;
output.append(' ').append(n).append(unit.toString(n));
outputSize++;
}
if (seconds <= 0 || outputSize >= this.accuracy) {
break;
}
}
if (output.length() == 0) {
return "0" + this.units[this.units.length - 1].stringPlural;
}
return output.substring(1);
}
public String format(Duration duration) {
return format(duration.getSeconds());
}
}

39
common/src/main/java/me/lucko/luckperms/common/util/DurationParser.java
View File

@ -25,9 +25,11 @@
package me.lucko.luckperms.common.util;
import com.google.common.collect.ImmutableMap;
import java.time.Duration;
import java.time.temporal.ChronoUnit;
import java.util.Arrays;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
@ -38,28 +40,21 @@ import java.util.stream.Collectors;
public final class DurationParser {
private DurationParser() {}
private static final ChronoUnit[] UNITS = new ChronoUnit[]{
ChronoUnit.YEARS,
ChronoUnit.MONTHS,
ChronoUnit.WEEKS,
ChronoUnit.DAYS,
ChronoUnit.HOURS,
ChronoUnit.MINUTES,
ChronoUnit.SECONDS
};
private static final Map<ChronoUnit, String> UNITS_PATTERNS = ImmutableMap.<ChronoUnit, String>builder()
.put(ChronoUnit.YEARS, "y(?:ear)?s?")
.put(ChronoUnit.MONTHS, "mo(?:nth)?s?")
.put(ChronoUnit.WEEKS, "w(?:eek)?s?")
.put(ChronoUnit.DAYS, "d(?:ay)?s?")
.put(ChronoUnit.HOURS, "h(?:our|r)?s?")
.put(ChronoUnit.MINUTES, "m(?:inute|in)?s?")
.put(ChronoUnit.SECONDS, "(?:s(?:econd|ec)?s?)?")
.build();
private static final String PATTERN_STRING = Arrays.stream(UNITS)
.limit(UNITS.length - 1) // skip seconds
.map(unit -> {
if (unit == ChronoUnit.MONTHS) {
return "mo";
}
// use the first char as the abbreviation
return String.valueOf(Character.toLowerCase(unit.name().charAt(0)));
})
.map(abbreviation -> "(?:([0-9]+)\\s*" + abbreviation + "[a-z]*[,\\s]*)?")
.collect(Collectors.joining())
.concat("(?:([0-9]+)\\s*(?:s[a-z]*)?)?");
private static final ChronoUnit[] UNITS = UNITS_PATTERNS.keySet().toArray(new ChronoUnit[0]);
private static final String PATTERN_STRING = UNITS_PATTERNS.values().stream()
.map(pattern -> "(?:(\\d+)\\s*" + pattern + "[,\\s]*)?")
.collect(Collectors.joining());
private static final Pattern PATTERN = Pattern.compile(PATTERN_STRING, Pattern.CASE_INSENSITIVE);