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wildcard.cc

@@ -0,0 +1,102 @@
+#include <QRegularExpression>
+#include "wildcard.hh"
+
+/*
+  Modified function from Qt
+  Translates a wildcard pattern to an equivalent regular expression
+  pattern (e.g., *.cpp to .*\.cpp).
+*/
+
+QString wildcardsToRegexp( const QString & wc_str )
+{
+    const int wclen = wc_str.length();
+    QString rx;
+    int i = 0;
+    bool isEscaping = false; // the previous character is '\'
+    const QChar *wc = wc_str.unicode();
+
+    while( i < wclen ) {
+      const QChar c = wc[ i++ ];
+      switch( c.unicode() ) {
+        case '\\':
+            if( isEscaping ) {
+                rx += QLatin1String( "\\\\" );
+            } // we insert the \\ later if necessary
+            if( i == wclen ) { // the end
+                rx += QLatin1String( "\\\\" );
+            }
+            isEscaping = true;
+            break;
+
+        case '*':
+            if( isEscaping ) {
+                rx += QLatin1String( "\\*" );
+                isEscaping = false;
+            } else {
+                rx += QLatin1String( ".*" );
+            }
+            break;
+
+        case '?':
+            if( isEscaping ) {
+                rx += QLatin1String( "\\?" );
+                isEscaping = false;
+            } else {
+                rx += QLatin1Char( '.' );
+            }
+
+            break;
+
+        case '$':
+        case '(':
+        case ')':
+        case '+':
+        case '.':
+        case '^':
+        case '{':
+        case '|':
+        case '}':
+            if( isEscaping ) {
+                isEscaping = false;
+                rx += QLatin1String( "\\\\" );
+            }
+            rx += QLatin1Char( '\\' );
+            rx += c;
+            break;
+         case '[':
+            if(isEscaping) {
+                isEscaping = false;
+                rx += QLatin1String( "\\[" );
+            } else {
+                QString tmp;
+                tmp += c;
+                while( i < wclen && wc[ i ] != QLatin1Char( ']' ) ) {
+                    if( wc[ i ] == QLatin1Char( '\\' ) )
+                        tmp += QLatin1Char( '\\' );
+                    tmp += wc[ i++ ];
+                }
+                if( i < wclen )
+                    rx += tmp;
+                else
+                    rx += QRegularExpression::escape( tmp );
+            }
+            break;
+
+        case ']':
+            if( isEscaping ){
+                isEscaping = false;
+                rx += QLatin1String( "\\" );
+            }
+            rx += c;
+            break;
+
+        default:
+            if( isEscaping ){
+                isEscaping = false;
+                rx += QLatin1String( "\\\\" );
+            }
+            rx += c;
+      }
+    }
+    return rx;
+}

wildcard.hh

@@ -0,0 +1,8 @@
+#ifndef __WILCARD_HH_INCLUDED__
+#define __WILCARD_HH_INCLUDED__
+
+#include <QString>
+
+QString wildcardsToRegexp( const QString & wc_str );
+
+#endif