From 48a8481b8563e548054d66ccd3c73fa4964db0fd Mon Sep 17 00:00:00 2001
From: mgrojo <mgrojo@gmail.com>
Date: Fri, 26 Jul 2019 19:47:02 +0200
Subject: [PATCH] Allow using extended regular expressions in the find dialogs

This adds support for searching "this|that" to find either "this" or "that"
or using quantifiers like "{number}". The change applies to the
Find/Replace dialog and the search bar.

See https://en.cppreference.com/w/cpp/regex/ecmascript for details of the
syntax.

This raises the requirement for an external version of QScintilla to v2.11.

See issue #1625
---
 src/ExtendedScintilla.cpp | 3 ++-
 src/FindReplaceDialog.cpp | 6 ++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/ExtendedScintilla.cpp b/src/ExtendedScintilla.cpp
index 413bf526..597c6f3c 100644
--- a/src/ExtendedScintilla.cpp
+++ b/src/ExtendedScintilla.cpp
@@ -244,7 +244,8 @@ bool ExtendedScintilla::findText(QString text, bool regexp, bool caseSensitive,
     }
 
     return findFirst(text, regexp, caseSensitive, words, wrap, forward,
-                     /* line */ -1, /* index */ -1, /* show */ true, /* posix */ true);
+                     /* line */ -1, /* index */ -1,
+                     /* show */ true, /* posix */ true, /* cxx11 */ true);
 }
 
 void ExtendedScintilla::setEnabledFindDialog(bool value)
diff --git a/src/FindReplaceDialog.cpp b/src/FindReplaceDialog.cpp
index f0ecbfd6..45797f37 100644
--- a/src/FindReplaceDialog.cpp
+++ b/src/FindReplaceDialog.cpp
@@ -54,7 +54,8 @@ bool FindReplaceDialog::findFirst(bool wrap, bool forward)
              ui->wholeWordsCheckBox->isChecked(),
              forward,
              /* show */ true,
-             /* posix */ true);
+             /* posix */ true,
+             /* cxx11 */ true);
     else
         return m_scintilla->findFirst
             (ui->findText->text(),
@@ -66,7 +67,8 @@ bool FindReplaceDialog::findFirst(bool wrap, bool forward)
              /* line */ -1,
              /* index */ -1,
              /* show */ true,
-             /* posix */ true);
+             /* posix */ true,
+             /* cxx11 */ true);
 }
 
 bool FindReplaceDialog::findNext()