add $$system_quote() & $$shell_quote() functions

follow suit with qmake ...

Change-Id: I3db37ba73cb709d8baf200600ae29241bc26bee5
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>

3 files changed, 61 insertions, 32 deletions

diff --git a/src/shared/proparser/ioutils.cpp b/src/shared/proparser/ioutils.cpp
index b85ed95378..cd8923a32c 100644
--- a/src/shared/proparser/ioutils.cpp
+++ b/src/shared/proparser/ioutils.cpp
@@ -91,44 +91,53 @@ QString IoUtils::resolvePath(const QString &baseDir, const QString &fileName)
     return QDir::cleanPath(baseDir + QLatin1Char('/') + fileName);
 }
 
-#ifdef QT_BOOTSTRAPPED
-inline static bool isSpecialChar(ushort c)
+inline static
+bool hasSpecialChars(const QString &arg, const uchar (&iqm)[16])
+{
+    for (int x = arg.length() - 1; x >= 0; --x) {
+        ushort c = arg.unicode()[x].unicode();
+        if ((c < sizeof(iqm) * 8) && (iqm[c / 8] & (1 << (c & 7))))
+            return true;
+    }
+    return false;
+}
+
+QString IoUtils::shellQuoteUnix(const QString &arg)
 {
     // Chars that should be quoted (TM). This includes:
-#ifdef Q_OS_WIN
-    // - control chars & space
-    // - the shell meta chars "&()<>^|
-    // - the potential separators ,;=
-    static const uchar iqm[] = {
-        0xff, 0xff, 0xff, 0xff, 0x45, 0x13, 0x00, 0x78,
-        0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x10
-    };
-#else
     static const uchar iqm[] = {
         0xff, 0xff, 0xff, 0xff, 0xdf, 0x07, 0x00, 0xd8,
         0x00, 0x00, 0x00, 0x38, 0x01, 0x00, 0x00, 0x78
     }; // 0-32 \'"$`<>|;&(){}*?#!~[]
-#endif
 
-    return (c < sizeof(iqm) * 8) && (iqm[c / 8] & (1 << (c & 7)));
-}
+    if (!arg.length())
+        return QString::fromLatin1("\"\"");
 
-inline static bool hasSpecialChars(const QString &arg)
-{
-    for (int x = arg.length() - 1; x >= 0; --x)
-        if (isSpecialChar(arg.unicode()[x].unicode()))
-            return true;
-    return false;
+    QString ret(arg);
+    if (hasSpecialChars(ret, iqm)) {
+        ret.replace(QLatin1Char('\''), QLatin1String("'\\''"));
+        ret.prepend(QLatin1Char('\''));
+        ret.append(QLatin1Char('\''));
+    }
+    return ret;
 }
 
-QString IoUtils::shellQuote(const QString &arg)
+QString IoUtils::shellQuoteWin(const QString &arg)
 {
+    // Chars that should be quoted (TM). This includes:
+    // - control chars & space
+    // - the shell meta chars "&()<>^|
+    // - the potential separators ,;=
+    static const uchar iqm[] = {
+        0xff, 0xff, 0xff, 0xff, 0x45, 0x13, 0x00, 0x78,
+        0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x10
+    };
+
     if (!arg.length())
         return QString::fromLatin1("\"\"");
 
     QString ret(arg);
-    if (hasSpecialChars(ret)) {
-#ifdef Q_OS_WIN
+    if (hasSpecialChars(ret, iqm)) {
         // Quotes are escaped and their preceding backslashes are doubled.
         // It's impossible to escape anything inside a quoted string on cmd
         // level, so the outer quoting must be "suspended".
@@ -141,14 +150,8 @@ QString IoUtils::shellQuote(const QString &arg)
             --i;
         ret.insert(i, QLatin1Char('"'));
         ret.prepend(QLatin1Char('"'));
-#else // Q_OS_WIN
-        ret.replace(QLatin1Char('\''), QLatin1String("'\\''"));
-        ret.prepend(QLatin1Char('\''));
-        ret.append(QLatin1Char('\''));
-#endif // Q_OS_WIN
     }
     return ret;
 }
-#endif
 
 QT_END_NAMESPACE
diff --git a/src/shared/proparser/ioutils.h b/src/shared/proparser/ioutils.h
index 0482f7628e..8f1fadb7d7 100644
--- a/src/shared/proparser/ioutils.h
+++ b/src/shared/proparser/ioutils.h
@@ -55,8 +55,13 @@ public:
     static bool isAbsolutePath(const QString &fileName) { return !isRelativePath(fileName); }
     static QStringRef fileName(const QString &fileName); // Requires normalized path
     static QString resolvePath(const QString &baseDir, const QString &fileName);
-#ifdef QT_BOOTSTRAPPED
-    static QString shellQuote(const QString &arg);
+    static QString shellQuoteUnix(const QString &arg);
+    static QString shellQuoteWin(const QString &arg);
+    static QString shellQuote(const QString &arg)
+#ifdef Q_OS_UNIX
+        { return shellQuoteUnix(arg); }
+#else
+        { return shellQuoteWin(arg); }
 #endif
 };
 
diff --git a/src/shared/proparser/qmakebuiltins.cpp b/src/shared/proparser/qmakebuiltins.cpp
index 1e26c90af8..83d3cf3604 100644
--- a/src/shared/proparser/qmakebuiltins.cpp
+++ b/src/shared/proparser/qmakebuiltins.cpp
@@ -78,7 +78,7 @@ enum ExpandFunc {
     E_UPPER, E_LOWER, E_FILES, E_PROMPT, E_RE_ESCAPE, E_VAL_ESCAPE,
     E_REPLACE, E_SORT_DEPENDS, E_RESOLVE_DEPENDS, E_ENUMERATE_VARS,
     E_SHADOWED, E_ABSOLUTE_PATH, E_RELATIVE_PATH, E_CLEAN_PATH,
-    E_SYSTEM_PATH, E_SHELL_PATH
+    E_SYSTEM_PATH, E_SHELL_PATH, E_SYSTEM_QUOTE, E_SHELL_QUOTE
 };
 
 enum TestFunc {
@@ -131,6 +131,8 @@ void QMakeEvaluator::initFunctionStatics()
         { "clean_path", E_CLEAN_PATH },
         { "system_path", E_SYSTEM_PATH },
         { "shell_path", E_SHELL_PATH },
+        { "system_quote", E_SYSTEM_QUOTE },
+        { "shell_quote", E_SHELL_QUOTE },
     };
     for (unsigned i = 0; i < sizeof(expandInits)/sizeof(expandInits[0]); ++i)
         statics.expands.insert(ProString(expandInits[i].name), expandInits[i].func);
@@ -890,6 +892,25 @@ ProStringList QMakeEvaluator::evaluateExpandFunction(
             ret << ProString(rstr, NoHash).setSource(args.at(0));
         }
         break;
+    case E_SYSTEM_QUOTE:
+        if (args.count() != 1)
+            evalError(fL1S("system_quote(arg) requires one argument."));
+        else
+            ret << ProString(IoUtils::shellQuote(args.at(0).toQString(m_tmp1)),
+                             NoHash).setSource(args.at(0));
+        break;
+    case E_SHELL_QUOTE:
+        if (args.count() != 1) {
+            evalError(fL1S("shell_quote(arg) requires one argument."));
+        } else {
+            QString rstr = args.at(0).toQString(m_tmp1);
+            if (m_option->dir_sep.at(0) != QLatin1Char('/'))
+                rstr = IoUtils::shellQuoteWin(rstr);
+            else
+                rstr = IoUtils::shellQuoteUnix(rstr);
+            ret << ProString(rstr, NoHash).setSource(args.at(0));
+        }
+        break;
     case E_INVALID:
         evalError(fL1S("'%1' is not a recognized replace function.")
                   .arg(func.toQString(m_tmp1)));