Revise C++ coding style using clang-format

Run the `Utilities/Scripts/clang-format.bash` script to update
all our C++ code to a new style defined by `.clang-format`.
Use `clang-format` version 3.8.

* If you reached this commit for a line in `git blame`, re-run the blame
  operation starting at the parent of this commit to see older history
  for the content.

* See the parent commit for instructions to rebase a change across this
  style transition commit.

1 files changed, 30 insertions, 50 deletions

diff --git a/Source/QtDialog/RegexExplorer.cxx b/Source/QtDialog/RegexExplorer.cxx
index dfcf048..d23a08c 100644
--- a/Source/QtDialog/RegexExplorer.cxx
+++ b/Source/QtDialog/RegexExplorer.cxx
@@ -12,16 +12,16 @@
 
 #include "RegexExplorer.h"
 
-RegexExplorer::RegexExplorer(QWidget* p) : QDialog(p), m_matched(false)
+RegexExplorer::RegexExplorer(QWidget* p)
+  : QDialog(p)
+  , m_matched(false)
 {
   this->setupUi(this);
 
-  for(int i = 1; i < cmsys::RegularExpression::NSUBEXP; ++i)
-    {
-    matchNumber->addItem(
-      QString("Match %1").arg(QString::number(i)),
-      QVariant(i));
-    }
+  for (int i = 1; i < cmsys::RegularExpression::NSUBEXP; ++i) {
+    matchNumber->addItem(QString("Match %1").arg(QString::number(i)),
+                         QVariant(i));
+  }
   matchNumber->setCurrentIndex(0);
 }
 
@@ -44,10 +44,9 @@ void RegexExplorer::on_regularExpression_textChanged(const QString& text)
 
   bool validExpression =
     stripEscapes(m_regex) && m_regexParser.compile(m_regex);
-  if(!validExpression)
-    {
+  if (!validExpression) {
     m_regexParser.set_invalid();
-    }
+  }
 
   setStatusColor(labelRegexValid, validExpression);
 
@@ -56,8 +55,7 @@ void RegexExplorer::on_regularExpression_textChanged(const QString& text)
 
 void RegexExplorer::on_inputText_textChanged()
 {
-  if(m_regexParser.is_valid())
-    {
+  if (m_regexParser.is_valid()) {
     QString plainText = inputText->toPlainText();
 #ifdef QT_NO_STL
     m_text = plainText.toAscii().constData();
@@ -65,19 +63,16 @@ void RegexExplorer::on_inputText_textChanged()
     m_text = plainText.toStdString();
 #endif
     m_matched = m_regexParser.find(m_text);
-    }
-  else
-    {
+  } else {
     m_matched = false;
-    }
+  }
 
   setStatusColor(labelRegexMatch, m_matched);
 
-  if(!m_matched)
-    {
+  if (!m_matched) {
     clearMatch();
     return;
-    }
+  }
 
 #ifdef QT_NO_STL
   QString matchText = m_regexParser.match(0).c_str();
@@ -91,18 +86,16 @@ void RegexExplorer::on_inputText_textChanged()
 
 void RegexExplorer::on_matchNumber_currentIndexChanged(int index)
 {
-  if(!m_matched)
-    {
+  if (!m_matched) {
     return;
-    }
+  }
 
   QVariant itemData = matchNumber->itemData(index);
   int idx = itemData.toInt();
 
-  if(idx < 1 || idx >= cmsys::RegularExpression::NSUBEXP)
-    {
+  if (idx < 1 || idx >= cmsys::RegularExpression::NSUBEXP) {
     return;
-    }
+  }
 
 #ifdef QT_NO_STL
   QString match = m_regexParser.match(idx).c_str();
@@ -125,42 +118,29 @@ bool RegexExplorer::stripEscapes(std::string& source)
   std::string result;
   result.reserve(source.size());
 
-  for(char inc = *in; inc != '\0'; inc = *++in)
-    {
-    if(inc == '\\')
-      {
+  for (char inc = *in; inc != '\0'; inc = *++in) {
+    if (inc == '\\') {
       char nextc = in[1];
-      if(nextc == 't')
-        {
+      if (nextc == 't') {
         result.append(1, '\t');
         in++;
-        }
-      else if(nextc == 'n')
-        {
+      } else if (nextc == 'n') {
         result.append(1, '\n');
         in++;
-        }
-      else if(nextc == 't')
-        {
+      } else if (nextc == 't') {
         result.append(1, '\t');
         in++;
-        }
-      else if(isalnum(nextc) || nextc == '\0')
-        {
+      } else if (isalnum(nextc) || nextc == '\0') {
         return false;
-        }
-      else
-        {
+      } else {
         result.append(1, nextc);
         in++;
-        }
-      }
-    else
-      {
-        result.append(1, inc);
       }
+    } else {
+      result.append(1, inc);
     }
+  }
 
-    source = result;
-    return true;
+  source = result;
+  return true;
 }