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bug 59719: parse static list text properly; patch from Greg Woolsey

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1749129 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Javen O'Neal 2016-06-19 04:43:53 +00:00
parent bec4c45c59
commit e930c44e2d
1 changed files with 25 additions and 8 deletions
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33
src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataValidationConstraint.java
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@ -17,6 +17,7 @@
package org.apache.poi.xssf.usermodel;
import java.util.Arrays;
import java.util.regex.Pattern;
import org.apache.poi.ss.usermodel.DataValidationConstraint;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.STDataValidationType;
@ -27,6 +28,14 @@ import org.openxmlformats.schemas.spreadsheetml.x2006.main.STDataValidationOpera
*
*/
public class XSSFDataValidationConstraint implements DataValidationConstraint {
/**
* Excel validation constraints with static lists are delimited with optional whitespace and the Windows List Separator,
* which is typically comma, but can be changed by users. POI will just assume comma.
*/
private static final String LIST_SEPARATOR = ",";
private static final Pattern LIST_SPLIT_REGEX = Pattern.compile("\\s*" + LIST_SEPARATOR + "\\s*");
private static final String QUOTE = "\"";
private String formula1;
private String formula2;
private int validationType = -1;
@ -70,8 +79,14 @@ public class XSSFDataValidationConstraint implements DataValidationConstraint {
validate();
//FIXME: Need to confirm if this is not a formula.
if( ValidationType.LIST==validationType) {
explicitListOfValues = formula1.split(",");
// empirical testing shows Excel saves explicit lists surrounded by double quotes,
// range formula expressions can't start with quotes (I think - anyone have a creative counter example?)
if( ValidationType.LIST==validationType
&& formula1 != null
&& formula1.startsWith(QUOTE)
&& formula1.endsWith(QUOTE) ) {
final String formulaWithoutQuotes = formula1.substring(1, formula1.length()-1);
explicitListOfValues = LIST_SPLIT_REGEX.split(formulaWithoutQuotes);
}
}
@ -120,7 +135,7 @@ public class XSSFDataValidationConstraint implements DataValidationConstraint {
for (int i = 0; i < explicitListValues.length; i++) {
String string = explicitListValues[i];
if( builder.length() > 1) {
builder.append(",");
builder.append(LIST_SEPARATOR);
}
builder.append(string);
}
@ -136,7 +151,7 @@ public class XSSFDataValidationConstraint implements DataValidationConstraint {
this.formula1 = removeLeadingEquals(formula1);
}
protected String removeLeadingEquals(String formula1) {
protected static String removeLeadingEquals(String formula1) {
return isFormulaEmpty(formula1) ? formula1 : formula1.charAt(0)=='=' ? formula1.substring(1) : formula1;
}
@ -178,7 +193,7 @@ public class XSSFDataValidationConstraint implements DataValidationConstraint {
}
}
protected boolean isFormulaEmpty(String formula1) {
protected static boolean isFormulaEmpty(String formula1) {
return formula1 == null || formula1.trim().length()==0;
}
@ -189,10 +204,12 @@ public class XSSFDataValidationConstraint implements DataValidationConstraint {
builder.append(vt);
builder.append(' ');
if (validationType!=ValidationType.ANY) {
if (validationType != ValidationType.LIST && validationType != ValidationType.ANY && validationType != ValidationType.FORMULA) {
builder.append(",").append(ot).append(", ");
if (validationType != ValidationType.LIST
&& validationType != ValidationType.ANY
&& validationType != ValidationType.FORMULA) {
builder.append(LIST_SEPARATOR).append(ot).append(", ");
}
final String QUOTE = "";
if (validationType == ValidationType.LIST && explicitListOfValues != null) {
builder.append(QUOTE).append(Arrays.asList(explicitListOfValues)).append(QUOTE).append(' ');
} else {