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put back the goto - it is terrible but I don't have time work out why it is needed 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1893597 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
PJ Fanning 2021-09-24 14:39:48 +00:00
parent d457298316
commit 0ca10663c6
1 changed files with 47 additions and 45 deletions
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92
poi/src/main/java/org/apache/poi/hssf/usermodel/HeaderFooter.java
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@ -26,13 +26,13 @@ public abstract class HeaderFooter implements org.apache.poi.ss.usermodel.Header
protected HeaderFooter() {
//
}
/**
* @return the internal text representation (combining center, left and right parts).
* Possibly empty string if no header or footer is set. Never <code>null</code>.
*/
protected abstract String getRawText();
protected abstract String getRawText();
private String[] splitParts() {
String text = getRawText();
// default values
@ -40,6 +40,8 @@ public abstract class HeaderFooter implements org.apache.poi.ss.usermodel.Header
String _center = "";
String _right = "";
// FIXME: replace outer goto. just eww.
outer:
while (text.length() > 1) {
if (text.charAt(0) != '&') {
// Mimics the behaviour of Excel, which would put it in the center.
@ -48,43 +50,43 @@ public abstract class HeaderFooter implements org.apache.poi.ss.usermodel.Header
}
int pos = text.length();
switch (text.charAt(1)) {
case 'L':
if (text.contains("&C")) {
pos = Math.min(pos, text.indexOf("&C"));
}
if (text.contains("&R")) {
pos = Math.min(pos, text.indexOf("&R"));
}
_left = text.substring(2, pos);
text = text.substring(pos);
return new String[] { _left, _center, _right, };
case 'C':
if (text.contains("&L")) {
pos = Math.min(pos, text.indexOf("&L"));
}
if (text.contains("&R")) {
pos = Math.min(pos, text.indexOf("&R"));
}
_center = text.substring(2, pos);
text = text.substring(pos);
return new String[] { _left, _center, _right, };
case 'R':
if (text.contains("&C")) {
pos = Math.min(pos, text.indexOf("&C"));
}
if (text.contains("&L")) {
pos = Math.min(pos, text.indexOf("&L"));
}
_right = text.substring(2, pos);
text = text.substring(pos);
return new String[] { _left, _center, _right, };
default:
// Mimics the behaviour of Excel, which would put it in the center.
_center = text;
break;
case 'L':
if (text.contains("&C")) {
pos = Math.min(pos, text.indexOf("&C"));
}
if (text.contains("&R")) {
pos = Math.min(pos, text.indexOf("&R"));
}
_left = text.substring(2, pos);
text = text.substring(pos);
break;
case 'C':
if (text.contains("&L")) {
pos = Math.min(pos, text.indexOf("&L"));
}
if (text.contains("&R")) {
pos = Math.min(pos, text.indexOf("&R"));
}
_center = text.substring(2, pos);
text = text.substring(pos);
break;
case 'R':
if (text.contains("&C")) {
pos = Math.min(pos, text.indexOf("&C"));
}
if (text.contains("&L")) {
pos = Math.min(pos, text.indexOf("&L"));
}
_right = text.substring(2, pos);
text = text.substring(pos);
break;
default:
// Mimics the behaviour of Excel, which would put it in the center.
_center = text;
break outer;
}
}
return null;
return new String[] { _left, _center, _right, };
}
/**
@ -98,7 +100,7 @@ public abstract class HeaderFooter implements org.apache.poi.ss.usermodel.Header
* @param newLeft The string to set as the left side.
*/
public final void setLeft(String newLeft) {
updatePart(0, newLeft);
updatePart(0, newLeft);
}
/**
@ -112,7 +114,7 @@ public abstract class HeaderFooter implements org.apache.poi.ss.usermodel.Header
* @param newCenter The string to set as the center.
*/
public final void setCenter(String newCenter) {
updatePart(1, newCenter);
updatePart(1, newCenter);
}
/**
@ -126,9 +128,9 @@ public abstract class HeaderFooter implements org.apache.poi.ss.usermodel.Header
* @param newRight The string to set as the right side.
*/
public final void setRight(String newRight) {
updatePart(2, newRight);
updatePart(2, newRight);
}
private void updatePart(int partIndex, String newValue) {
String[] parts = splitParts();
parts[partIndex] = newValue == null ? "" : newValue;
@ -142,7 +144,7 @@ public abstract class HeaderFooter implements org.apache.poi.ss.usermodel.Header
String _left = parts[0];
String _center = parts[1];
String _right = parts[2];
if (_center.length() < 1 && _left.length() < 1 && _right.length() < 1) {
setHeaderFooterText("");
return;
@ -320,7 +322,7 @@ public abstract class HeaderFooter implements org.apache.poi.ss.usermodel.Header
UNDERLINE_FIELD ("&U", true),
DOUBLE_UNDERLINE_FIELD ("&E", true),
;
private final String _representation;
private final boolean _occursInPairs;
private MarkupTag(String sequence, boolean occursInPairs) {
@ -342,4 +344,4 @@ public abstract class HeaderFooter implements org.apache.poi.ss.usermodel.Header
return _occursInPairs;
}
}
}
}