ICU format support for pseudolocalizes.

Custom parser can handle nested ICU messages even if they
are split into multiple fragments. Code reworked to encapsulate
all pseudolocalization logic in Pseudolocalizer and PseudoMethods
classes. To minimize a changelist size, some static functions
remained. Fake BiDi pseudolocalization method is reimplemented
to handle word boundaries correctly. Unit tests added.

(cherry picked from commit cbb1e676b56677ae3585c067f29646dddffb4857)

bug: 22060509

Change-Id: I11968d81984d99501a4d9334ff2e7453a1eb7a00

1 files changed, 6 insertions, 31 deletions

diff --git a/tools/aapt/XMLNode.cpp b/tools/aapt/XMLNode.cpp
index 6902a30..ca3f687 100644
--- a/tools/aapt/XMLNode.cpp
+++ b/tools/aapt/XMLNode.cpp
@@ -213,16 +213,14 @@ status_t parseStyledString(Bundle* /* bundle */,
     Vector<StringPool::entry_style_span> spanStack;
     String16 curString;
     String16 rawString;
+    Pseudolocalizer pseudo(pseudolocalize);
     const char* errorMsg;
     int xliffDepth = 0;
     bool firstTime = true;
 
     size_t len;
     ResXMLTree::event_code_t code;
-    // Bracketing if pseudolocalization accented method specified.
-    if (pseudolocalize == PSEUDO_ACCENTED) {
-        curString.append(String16(String8("[")));
-    }
+    curString.append(pseudo.start());
     while ((code=inXml->next()) != ResXMLTree::END_DOCUMENT && code != ResXMLTree::BAD_DOCUMENT) {
         if (code == ResXMLTree::TEXT) {
             String16 text(inXml->getText(&len));
@@ -231,18 +229,12 @@ status_t parseStyledString(Bundle* /* bundle */,
                 if (text.string()[0] == '@') {
                     // If this is a resource reference, don't do the pseudoloc.
                     pseudolocalize = NO_PSEUDOLOCALIZATION;
+                    pseudo.setMethod(pseudolocalize);
+                    curString = String16();
                 }
             }
             if (xliffDepth == 0 && pseudolocalize > 0) {
-                String16 pseudo;
-                if (pseudolocalize == PSEUDO_ACCENTED) {
-                    pseudo = pseudolocalize_string(text);
-                } else if (pseudolocalize == PSEUDO_BIDI) {
-                    pseudo = pseudobidi_string(text);
-                } else {
-                    pseudo = text;
-                }
-                curString.append(pseudo);
+                curString.append(pseudo.text(text));
             } else {
                 if (isFormatted && hasSubstitutionErrors(fileName, inXml, text) != NO_ERROR) {
                     return UNKNOWN_ERROR;
@@ -382,24 +374,7 @@ moveon:
         }
     }
 
-    // Bracketing if pseudolocalization accented method specified.
-    if (pseudolocalize == PSEUDO_ACCENTED) {
-        const char16_t* str = outString->string();
-        const char16_t* p = str;
-        const char16_t* e = p + outString->size();
-        int words_cnt = 0;
-        while (p < e) {
-            if (isspace(*p)) {
-                words_cnt++;
-            }
-            p++;
-        }
-        unsigned int length = words_cnt > 3 ? outString->size() :
-            outString->size() / 2;
-        curString.append(String16(String8(" ")));
-        curString.append(pseudo_generate_expansion(length));
-        curString.append(String16(String8("]")));
-    }
+    curString.append(pseudo.end());
 
     if (code == ResXMLTree::BAD_DOCUMENT) {
             SourcePos(String8(fileName), inXml->getLineNumber()).error(