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Code Issues Releases Wiki Activity

Improve StringUtils.escapeForXML()

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use CharSequence as input.
This commit is contained in:
Florian Schmaus 2015-07-01 23:21:53 +02:00
parent 1c716bc1e0
commit 46f9b9ab39
1 changed files with 9 additions and 10 deletions
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19
smack-core/src/main/java/org/jivesoftware/smack/util/StringUtils.java
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@ -41,18 +41,17 @@ public class StringUtils {
public static final char[] HEX_CHARS = "0123456789abcdef".toCharArray();
/**
* Escapes all necessary characters in the String so that it can be used
* Escapes all necessary characters in the CharSequence so that it can be used
* in an XML doc.
*
* @param string the string to escape.
* @param input the CharSequence to escape.
* @return the string with appropriate characters escaped.
*/
public static CharSequence escapeForXML(final String string) {
if (string == null) {
public static CharSequence escapeForXML(final CharSequence input) {
if (input == null) {
return null;
}
final char[] input = string.toCharArray();
final int len = input.length;
final int len = input.length();
final StringBuilder out = new StringBuilder((int)(len*1.3));
CharSequence toAppend;
char ch;
@ -60,7 +59,7 @@ public class StringUtils {
int i = 0;
while (i < len) {
toAppend = null;
ch = input[i];
ch = input.charAt(i);
switch(ch) {
case '<':
toAppend = LT_ENCODE;
@ -82,7 +81,7 @@ public class StringUtils {
}
if (toAppend != null) {
if (i > last) {
out.append(input, last, i - last);
out.append(input, last, i);
}
out.append(toAppend);
last = ++i;
@ -91,10 +90,10 @@ public class StringUtils {
}
}
if (last == 0) {
return string;
return input;
}
if (i > last) {
out.append(input, last, i - last);
out.append(input, last, i);
}
return out;
}