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changed the logic that generates escaped strings to always use the /uxxxx format, instead of the 3 digital octal escape

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git-svn-id: https://smali.googlecode.com/svn/trunk@177 55b6fa8a-2a1e-11de-a435-ffa8d773f76a
This commit is contained in:
JesusFreke@JesusFreke.com 2009-06-20 20:14:15 +00:00
parent 78314beef2
commit 4ec387882d
1 changed files with 11 additions and 34 deletions
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45
dexlib/src/main/java/org/jf/dexlib/util/Utf8Utils.java
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@ -165,49 +165,26 @@ public final class Utf8Utils {
for (int i = 0; i < len; i++) {
char c = value.charAt(i);
if ((c >= ' ') && (c < 0x7f)) {
if ((c == '\'') || (c == '\"') || (c == '\\')) {
sb.append('\\');
}
sb.append(c);
continue;
} else if (c <= 0x7f) {
switch (c) {
case '\n': sb.append("\\n"); break;
case '\r': sb.append("\\r"); break;
case '\t': sb.append("\\t"); break;
default: {
/*
* Represent the character as an octal escape.
* If the next character is a valid octal
* digit, disambiguate by using the
* three-digit form.
*/
char nextChar =
(i < (len - 1)) ? value.charAt(i + 1) : 0;
boolean displayZero =
(nextChar >= '0') && (nextChar <= '7');
sb.append('\\');
for (int shift = 6; shift >= 0; shift -= 3) {
char outChar = (char) (((c >> shift) & 7) + '0');
if ((outChar != '0') || displayZero) {
sb.append(outChar);
displayZero = true;
}
}
if (! displayZero) {
// Ironic edge case: The original value was 0.
sb.append('0');
}
break;
}
case '\n': sb.append("\\n"); continue;
case '\r': sb.append("\\r"); continue;
case '\t': sb.append("\\t"); continue;
}
} else {
sb.append("\\u");
sb.append(Character.forDigit(c >> 12, 16));
sb.append(Character.forDigit((c >> 8) & 0x0f, 16));
sb.append(Character.forDigit((c >> 4) & 0x0f, 16));
sb.append(Character.forDigit(c & 0x0f, 16));
}
sb.append("\\u");
sb.append(Character.forDigit(c >> 12, 16));
sb.append(Character.forDigit((c >> 8) & 0x0f, 16));
sb.append(Character.forDigit((c >> 4) & 0x0f, 16));
sb.append(Character.forDigit(c & 0x0f, 16));
}
return sb.toString();