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Improved padding performance #30

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Improved padding performance #30

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41 changes: 24 additions & 17 deletions Source/MarkdownGenerator/src/main/java/net/steppschuh/markdowngenerator/util/StringUtil.java
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Original file line number Diff line number Diff line change
Expand Up @@ -26,36 +26,43 @@ public static String fillUpLeftAligned(String value, String fill, int length) {
if (value.length() >= length) {
return value;
}
while (value.length() < length) {
value += fill;
StringBuilder valueBuilder = new StringBuilder(length);
valueBuilder.append(value);
while (valueBuilder.length() < length) {
valueBuilder.append(fill);
}
return value;
return valueBuilder.toString();
}

public static String fillUpRightAligned(String value, String fill, int length) {
if (value.length() >= length) {
int valueLength = value.length();
if (valueLength >= length) {
return value;
}
while (value.length() < length) {
value = fill + value;
StringBuilder valueBuilder = new StringBuilder(length);
int fillLength = length - valueLength;
while (valueBuilder.length() < fillLength) {
valueBuilder.append(fill);
}
return value;
valueBuilder.append(value);
return valueBuilder.toString();
}

public static String fillUpCenterAligned(String value, String fill, int length) {
if (value.length() >= length) {
int valueLength = value.length();
if (valueLength >= length) {
return value;
}
boolean left = true;
while (value.length() < length) {
if (left) {
value = fillUpLeftAligned(value, fill, value.length() + 1);
} else {
value = fillUpRightAligned(value, fill, value.length() + 1);
}
left = !left;
int fillLeftCount = (length - valueLength) / 2 / fill.length();
StringBuilder valueBuilder = new StringBuilder(length);
for (int i=0; i<fillLeftCount; i++) {
valueBuilder.append(fill);
}
valueBuilder.append(value);
while (valueBuilder.length() < length) {
valueBuilder.append(fill);
}
return value;
return valueBuilder.toString();
}

public static String surroundValueWith(String value, String surrounding) {
Expand Down