Utils: move line column parsing again

This will allow us to just parse the postfix without fileName
extraction.

Change-Id: Ied6b80f25078473e2b91ced68913205a17f9068e
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/libs/utils/CMakeLists.txt

@@ -77,7 +77,7 @@ add_qtc_library(Utils
     json.cpp json.h
     jsontreeitem.cpp jsontreeitem.h
     layoutbuilder.cpp layoutbuilder.h
-    linecolumn.h
+    linecolumn.cpp linecolumn.h
     link.cpp link.h
     listmodel.h
     listutils.h

src/libs/utils/linecolumn.cpp

@@ -0,0 +1,68 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "linecolumn.h"
+
+#include <QRegularExpression>
+
+namespace Utils {
+
+/*!
+    Returns the line and column of a \a fileName and sets the \a postfixPos if
+    it can find a positional postfix.
+
+    The following patterns are supported: \c {filepath.txt:19},
+    \c{filepath.txt:19:12}, \c {filepath.txt+19},
+    \c {filepath.txt+19+12}, and \c {filepath.txt(19)}.
+*/
+
+LineColumn LineColumn::extractFromFileName(const QString &fileName, int &postfixPos)
+{
+    static const auto regexp = QRegularExpression("[:+](\\d+)?([:+](\\d+)?)?$");
+    // (10) MSVC-style
+    static const auto vsRegexp = QRegularExpression("[(]((\\d+)[)]?)?$");
+    const QRegularExpressionMatch match = regexp.match(fileName);
+    QString filePath = fileName;
+    LineColumn lineColumn;
+    if (match.hasMatch()) {
+        postfixPos = match.capturedStart(0);
+        filePath = fileName.left(match.capturedStart(0));
+        lineColumn.line = 0; // for the case that there's only a : at the end
+        if (match.lastCapturedIndex() > 0) {
+            lineColumn.line = match.captured(1).toInt();
+            if (match.lastCapturedIndex() > 2) // index 2 includes the + or : for the column number
+                lineColumn.column = match.captured(3).toInt() - 1; //column is 0 based, despite line being 1 based
+        }
+    } else {
+        const QRegularExpressionMatch vsMatch = vsRegexp.match(fileName);
+        postfixPos = match.capturedStart(0);
+        filePath = fileName.left(vsMatch.capturedStart(0));
+        if (vsMatch.lastCapturedIndex() > 1) // index 1 includes closing )
+            lineColumn.line = vsMatch.captured(2).toInt();
+    }
+    return lineColumn;
+}
+
+} // namespace Utils

src/libs/utils/linecolumn.h

@@ -25,13 +25,15 @@
 
 #pragma once
 
+#include "utils_global.h"
+
 #include "optional.h"
 
 #include <QMetaType>
 
 namespace Utils {
 
-class LineColumn
+class QTCREATOR_UTILS_EXPORT LineColumn
 {
 public:
     constexpr LineColumn() = default;
@@ -41,6 +43,7 @@ public:
         column(column)
     {}
 
+
     bool isValid() const
     {
         return line >= 0 && column >= 0;
@@ -56,6 +59,8 @@ public:
         return !(first == second);
     }
 
+    static LineColumn extractFromFileName(const QString &fileName, int &postfixPos);
+
 public:
     int line = -1;
     int column = -1;

src/libs/utils/link.cpp

@@ -25,14 +25,14 @@
 
 #include "link.h"
 
-#include <QRegularExpression>
+#include "linecolumn.h"
 
 namespace Utils {
 
 /*!
     Returns the Link to \a fileName.
     If \a canContainLineNumber is true the line number, and column number components
-    are extracted from \a fileName and the found \a postFix is set.
+    are extracted from \a fileName and the found \a postfix is set.
 
     The following patterns are supported: \c {filepath.txt:19},
     \c{filepath.txt:19:12}, \c {filepath.txt+19},
@@ -42,33 +42,13 @@ Link Link::fromString(const QString &fileName, bool canContainLineNumber, QStrin
 {
     if (!canContainLineNumber)
         return {Utils::FilePath::fromString(fileName)};
-    // :10:2 GCC/Clang-style
-    static const auto regexp = QRegularExpression("[:+](\\d+)?([:+](\\d+)?)?$");
-    // (10) MSVC-style
-    static const auto vsRegexp = QRegularExpression("[(]((\\d+)[)]?)?$");
-    const QRegularExpressionMatch match = regexp.match(fileName);
-    QString filePath = fileName;
-    int line = -1;
-    int column = -1;
-    if (match.hasMatch()) {
-        if (postfix)
-            *postfix = match.captured(0);
-        filePath = fileName.left(match.capturedStart(0));
-        line = 0; // for the case that there's only a : at the end
-        if (match.lastCapturedIndex() > 0) {
-            line = match.captured(1).toInt();
-            if (match.lastCapturedIndex() > 2) // index 2 includes the + or : for the column number
-                column = match.captured(3).toInt() - 1; //column is 0 based, despite line being 1 based
-        }
-    } else {
-        const QRegularExpressionMatch vsMatch = vsRegexp.match(fileName);
-        if (postfix)
-            *postfix = vsMatch.captured(0);
-        filePath = fileName.left(vsMatch.capturedStart(0));
-        if (vsMatch.lastCapturedIndex() > 1) // index 1 includes closing )
-            line = vsMatch.captured(2).toInt();
-    }
-    return {Utils::FilePath::fromString(filePath), line, column};
+    int postfixPos = -1;
+    const LineColumn lineColumn = LineColumn::extractFromFileName(fileName, postfixPos);
+    if (postfix && postfixPos >= 0)
+        *postfix = fileName.mid(postfixPos);
+    return {Utils::FilePath::fromString(fileName.left(postfixPos - 1)),
+            lineColumn.line,
+            lineColumn.column};
 }
 
 } // namespace Utils

src/libs/utils/utils-lib.pri

@@ -144,6 +144,7 @@ SOURCES += \
     $$PWD/futuresynchronizer.cpp \
     $$PWD/qtcsettings.cpp \
     $$PWD/link.cpp \
+    $$PWD/linecolumn.cpp \
 
 HEADERS += \
     $$PWD/environmentfwd.h \

src/libs/utils/utils.qbs

@@ -161,6 +161,7 @@ Project {
             "jsontreeitem.h",
             "layoutbuilder.cpp",
             "layoutbuilder.h",
+            "linecolumn.cpp",
             "linecolumn.h",
             "link.cpp",
             "link.h",