Merge QUrl::DecodeAllDelimiters and QUrl::DecodeUnambiguousDelimiters

There's little value in having the DecodeUnambiguousDelimiters option
since neither QUrl nor QUrlQuery can return values that are ambiguous
in that particular context, ever.

This option could be used to encode a character if, when placed
in a URL, it would need to be encoded. Such cases are hash (#) or
question marks (?) in the path component, or slashes (/) and at signs
(@) in the userinfo.

However, we don't need two enums for that, since there are no
other characters that can appear in either form. Still, leave two bits
for this enum. In the future, if we want to split the gen-delims from
the sub-delims, we are able to.

Change-Id: If5416b524680eb67dd4abbe7d072ca0ef7218506
Reviewed-by: Shane Kearns <shane.kearns@accenture.com>

4 files changed, 18 insertions, 23 deletions

diff --git a/src/corelib/io/qurl.cpp b/src/corelib/io/qurl.cpp
index f3c05af413..0821645111 100644
--- a/src/corelib/io/qurl.cpp
+++ b/src/corelib/io/qurl.cpp
@@ -445,7 +445,7 @@ recodeFromUser(const QString &input, const ushort *actions, int from, int to)
     const QChar *begin = input.constData() + from;
     const QChar *end = input.constData() + to;
     if (qt_urlRecode(output, begin, end,
-                     QUrl::DecodeUnicode | QUrl::DecodeAllDelimiters | QUrl::DecodeSpaces, actions))
+                     QUrl::MostDecoded, actions))
         return output;
 
     return input.mid(from, to - from);
@@ -466,7 +466,7 @@ static inline void appendToUser(QString &appendTo, const QString &value, QUrl::F
     }
 
     const ushort *actions = 0;
-    if (options & QUrl::DecodeAllDelimiters)
+    if (options & QUrl::DecodeDelimiters)
         actions = decodedActions;
     else
         actions = encodedActions;
@@ -494,7 +494,7 @@ void QUrlPrivate::appendUserInfo(QString &appendTo, QUrl::FormattingOptions opti
 
     const ushort *userNameActions;
     const ushort *passwordActions;
-    if (options & QUrl::DecodeAllDelimiters) {
+    if (options & QUrl::DecodeDelimiters) {
         switch (appendingTo) {
         case UserInfo:
             userNameActions = decodedUserNameInUserInfoActions;
@@ -540,7 +540,7 @@ inline void QUrlPrivate::appendPassword(QString &appendTo, QUrl::FormattingOptio
 
 inline void QUrlPrivate::appendPath(QString &appendTo, QUrl::FormattingOptions options, Section appendingTo) const
 {
-    if (appendingTo != Path && options & QUrl::DecodeAllDelimiters) {
+    if (appendingTo != Path && options & QUrl::DecodeDelimiters) {
         if (!qt_urlRecode(appendTo, path.constData(), path.constEnd(), options, decodedPathInUrlActions))
             appendTo += path;
 
@@ -564,11 +564,11 @@ inline void QUrlPrivate::appendQuery(QString &appendTo, QUrl::FormattingOptions
     }
 
     const ushort *actions = 0;
-    if (options & QUrl::DecodeAllDelimiters) {
+    if (options & QUrl::DecodeDelimiters) {
         // reset to default qt_urlRecode behaviour (leave delimiters alone)
-        options &= ~QUrl::DecodeAllDelimiters;
+        options &= ~QUrl::DecodeDelimiters;
         actions = appendingTo == Query ? decodedQueryInIsolationActions : decodedQueryInUrlActions;
-    } else if ((options & QUrl::DecodeAllDelimiters) == 0) {
+    } else if ((options & QUrl::DecodeDelimiters) == 0) {
         actions = encodedQueryActions;
     }
 
diff --git a/src/corelib/io/qurl.h b/src/corelib/io/qurl.h
index 068fe73401..4eaf652ff5 100644
--- a/src/corelib/io/qurl.h
+++ b/src/corelib/io/qurl.h
@@ -140,12 +140,11 @@ public:
     enum ComponentFormattingOption {
         FullyEncoded = 0x000000,
         DecodeSpaces = 0x100000,
-        DecodeUnambiguousDelimiters = 0x200000,
-        DecodeAllDelimiters = DecodeUnambiguousDelimiters | 0x400000,
+        DecodeDelimiters = 0x200000 | 0x400000,
         DecodeUnicode = 0x800000,
 
-        PrettyDecoded = DecodeSpaces | DecodeUnambiguousDelimiters | DecodeUnicode,
-        MostDecoded = PrettyDecoded | DecodeAllDelimiters
+        PrettyDecoded = DecodeSpaces | DecodeDelimiters | DecodeUnicode,
+        MostDecoded = PrettyDecoded
     };
     Q_DECLARE_FLAGS(ComponentFormattingOptions, ComponentFormattingOption)
 #ifdef qdoc
diff --git a/src/corelib/io/qurlquery.cpp b/src/corelib/io/qurlquery.cpp
index 85180a2d72..c0b90dd587 100644
--- a/src/corelib/io/qurlquery.cpp
+++ b/src/corelib/io/qurlquery.cpp
@@ -208,7 +208,7 @@ inline QString QUrlQueryPrivate::recodeFromUser(const QString &input) const
     // note: duplicated in setQuery()
     QString output;
     if (qt_urlRecode(output, input.constData(), input.constData() + input.length(),
-                     QUrl::DecodeUnicode | QUrl::DecodeAllDelimiters | QUrl::DecodeSpaces,
+                     QUrl::MostDecoded,
                      prettyDecodedActions))
         return output;
     return input;
@@ -216,7 +216,7 @@ inline QString QUrlQueryPrivate::recodeFromUser(const QString &input) const
 
 inline bool idempotentRecodeToUser(QUrl::ComponentFormattingOptions encoding)
 {
-    return encoding == QUrl::PrettyDecoded || encoding == (QUrl::PrettyDecoded | QUrl::DecodeAllDelimiters);
+    return encoding == QUrl::PrettyDecoded;
 }
 
 inline QString QUrlQueryPrivate::recodeToUser(const QString &input, QUrl::ComponentFormattingOptions encoding) const
@@ -226,13 +226,10 @@ inline QString QUrlQueryPrivate::recodeToUser(const QString &input, QUrl::Compon
     if (idempotentRecodeToUser(encoding))
         return input;
 
-    bool decodeUnambiguous = encoding & QUrl::DecodeUnambiguousDelimiters;
-    encoding &= ~QUrl::DecodeAllDelimiters;
-
-    if (decodeUnambiguous) {
+    if (encoding & QUrl::DecodeDelimiters) {
         QString output;
         if (qt_urlRecode(output, input.constData(), input.constData() + input.length(),
-                         encoding | QUrl::DecodeAllDelimiters, prettyDecodedActions))
+                         encoding, prettyDecodedActions))
             return output;
         return input;
     }
@@ -270,7 +267,7 @@ void QUrlQueryPrivate::setQuery(const QString &query)
 
         QString key;
         if (!qt_urlRecode(key, begin, delimiter,
-                          QUrl::DecodeUnicode | QUrl::DecodeAllDelimiters | QUrl::DecodeSpaces,
+                          QUrl::MostDecoded,
                           prettyDecodedActions))
             key = QString(begin, delimiter - begin);
 
@@ -283,7 +280,7 @@ void QUrlQueryPrivate::setQuery(const QString &query)
         } else {
             QString value;
             if (!qt_urlRecode(value, delimiter + 1, pos,
-                              QUrl::DecodeUnicode | QUrl::DecodeAllDelimiters | QUrl::DecodeSpaces,
+                              QUrl::MostDecoded,
                               prettyDecodedActions))
                 value = QString(delimiter + 1, pos - delimiter - 1);
             itemList.append(qMakePair(key, value));
@@ -469,10 +466,9 @@ QString QUrlQuery::query(QUrl::ComponentFormattingOptions encoding) const
         decode('#'),                         // 3
         0
     };
-    if (encoding & QUrl::DecodeAllDelimiters) {
+    if (encoding & QUrl::DecodeDelimiters) {
         // full decoding: we only encode the characters above
         tableActions[3] = 0;
-        encoding |= QUrl::DecodeAllDelimiters;
     } else {
         tableActions[3] = encode('#');
     }
diff --git a/src/corelib/io/qurlrecode.cpp b/src/corelib/io/qurlrecode.cpp
index 3b08e1544d..50adfa0dfd 100644
--- a/src/corelib/io/qurlrecode.cpp
+++ b/src/corelib/io/qurlrecode.cpp
@@ -469,7 +469,7 @@ qt_urlRecode(QString &appendTo, const QChar *begin, const QChar *end,
              QUrl::ComponentFormattingOptions encoding, const ushort *tableModifications)
 {
     uchar actionTable[sizeof defaultActionTable];
-    if (encoding & QUrl::DecodeAllDelimiters) {
+    if (encoding & QUrl::DecodeDelimiters) {
         // reset the table
         memset(actionTable, DecodeCharacter, sizeof actionTable);
         if (!(encoding & QUrl::DecodeSpaces))