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Recursively resolve @string/resource reference in key key spec parsing 

Change-Id: I9d172605e90e828e00f7c4c8d49548498aa3b50d
main
Tadashi G. Takaoka 2012-02-03 19:34:47 +09:00
parent 9f491e34ac
commit aca8870128
3 changed files with 61 additions and 28 deletions
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74
java/src/com/android/inputmethod/keyboard/internal/KeySpecParser.java
View File

@ -43,6 +43,8 @@ import java.util.Arrays;
public class KeySpecParser {
private static final boolean DEBUG = LatinImeLogger.sDBG;
private static final int MAX_STRING_REFERENCE_INDIRECTION = 10;
// Constants for parsing.
private static int COMMA = ',';
private static final char ESCAPE_CHAR = '\\';
@ -274,35 +276,51 @@ public class KeySpecParser {
return resId;
}
private static String resolveStringResource(String text, Resources res, int packageNameResId) {
final int size = text.length();
if (size < PREFIX_STRING.length()) {
return text;
}
StringBuilder sb = null;
for (int pos = 0; pos < size; pos++) {
final char c = text.charAt(pos);
if (c == PREFIX_AT && text.startsWith(PREFIX_STRING, pos)) {
if (sb == null) {
sb = new StringBuilder(text.substring(0, pos));
}
final int end = searchResourceNameEnd(text, pos + PREFIX_STRING.length());
final String resName = text.substring(pos + 1, end);
final int resId = getResourceId(res, resName, packageNameResId);
sb.append(res.getString(resId));
pos = end - 1;
} else if (c == ESCAPE_CHAR) {
if (sb != null) {
// Append both escape character and escaped character.
sb.append(text.substring(pos, Math.min(pos + 2, size)));
}
pos++;
} else if (sb != null) {
sb.append(c);
private static String resolveStringResource(String rawText, Resources res,
int packageNameResId) {
int level = 0;
String text = rawText;
StringBuilder sb;
do {
level++;
if (level >= MAX_STRING_REFERENCE_INDIRECTION) {
throw new RuntimeException("too many @string/resource indirection: " + text);
}
}
return (sb == null) ? text : sb.toString();
final int size = text.length();
if (size < PREFIX_STRING.length()) {
return text;
}
sb = null;
for (int pos = 0; pos < size; pos++) {
final char c = text.charAt(pos);
if (c == PREFIX_AT && text.startsWith(PREFIX_STRING, pos)) {
if (sb == null) {
sb = new StringBuilder(text.substring(0, pos));
}
final int end = searchResourceNameEnd(text, pos + PREFIX_STRING.length());
final String resName = text.substring(pos + 1, end);
final int resId = getResourceId(res, resName, packageNameResId);
sb.append(res.getString(resId));
pos = end - 1;
} else if (c == ESCAPE_CHAR) {
if (sb != null) {
// Append both escape character and escaped character.
sb.append(text.substring(pos, Math.min(pos + 2, size)));
}
pos++;
} else if (sb != null) {
sb.append(c);
}
}
if (sb != null) {
text = sb.toString();
}
} while (sb != null);
return text;
}
private static int searchResourceNameEnd(String text, int start) {

3
tests/res/values/donottranslate.xml
View File

@ -50,4 +50,7 @@
<string name="multiple_labels_with_escape_surrounded_by_spaces">" \\abc , d\\ef , gh\\i "</string>
<string name="multiple_labels_with_comma_and_escape">"ab\\\\,d\\\\\\,,g\\,i"</string>
<string name="multiple_labels_with_comma_and_escape_surrounded_by_spaces">" ab\\\\ , d\\\\\\, , g\\,i "</string>
<string name="indirect_string">@string/multiple_chars</string>
<string name="indirect_string_with_literal">x,@string/multiple_chars,y</string>
<string name="infinite_indirection">infinite,@string/infinite_indirection,loop</string>
</resources>

12
tests/src/com/android/inputmethod/keyboard/internal/KeySpecParserCsvTests.java
View File

@ -288,4 +288,16 @@ public class KeySpecParserCsvTests extends AndroidTestCase {
"abc@string/multiple_labels",
"abcabc", "def", "ghi");
}
public void testParseIndirectReference() {
assertTextArray("Indirect",
"@string/indirect_string", "a", "b", "c");
assertTextArray("Indirect with literal",
"1,@string/indirect_string_with_literal,2", "1", "x", "a", "b", "c", "y", "2");
}
public void testParseInfiniteIndirectReference() {
assertError("Infinite indirection",
"1,@string/infinite_indirection,2", "1", "infinite", "<infinite>", "loop", "2");
}
}