Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 144 insertions, 0 deletions

diff --git a/registry/tools/options.cxx b/registry/tools/options.cxx
new file mode 100644
index 000000000..0212c94e9
--- /dev/null
+++ b/registry/tools/options.cxx
@@ -0,0 +1,144 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "options.hxx"
+
+#include <osl/diagnose.h>
+
+#include <stdio.h>
+
+namespace registry::tools
+{
+
+Options::Options (char const * program)
+    : m_program (program)
+{}
+
+Options::~Options()
+{}
+
+// static
+bool Options::checkArgument(std::vector< std::string> & rArgs, char const * arg, size_t len)
+{
+    bool result = ((arg != nullptr) && (len > 0));
+    OSL_PRECOND(result, "registry::tools::Options::checkArgument(): invalid arguments");
+    if (!result)
+        return false;
+
+    switch (arg[0])
+    {
+    case '@':
+        result = len > 1;
+        if (result)
+        {
+            // "@<cmdfile>"
+            result = Options::checkCommandFile(rArgs, &(arg[1]));
+        }
+        break;
+    case '-':
+        result = len > 1;
+        if (result)
+        {
+            // "-<option>"
+            std::string option (&(arg[0]), 2);
+            rArgs.push_back(option);
+            if (len > 2)
+            {
+                // "-<option><param>"
+                std::string param(&(arg[2]), len - 2);
+                rArgs.push_back(param);
+            }
+        }
+        break;
+    default:
+        rArgs.push_back(std::string(arg, len));
+        break;
+    }
+    return result;
+}
+
+// static
+bool Options::checkCommandFile(std::vector< std::string > & rArgs, char const * filename)
+{
+    FILE * fp = fopen(filename, "r");
+    if (fp == nullptr)
+    {
+        fprintf(stderr, "ERROR: Can't open command file \"%s\"\n", filename);
+        return false;
+    }
+
+    std::string buffer;
+    buffer.reserve(256);
+
+    bool quoted = false;
+    int  c = EOF;
+    while ((c = fgetc(fp)) != EOF)
+    {
+        switch(c)
+        {
+        case '\"':
+            quoted = !quoted;
+            break;
+        case ' ':
+        case '\t':
+        case '\r':
+        case '\n':
+            if (!quoted)
+            {
+                if (!buffer.empty())
+                {
+                    if (!checkArgument(rArgs, buffer.c_str(), buffer.size()))
+                    {
+                        // failure.
+                        (void) fclose(fp);
+                        return false;
+                    }
+                    buffer.clear();
+                }
+                break;
+            }
+            [[fallthrough]];
+        default:
+            buffer.push_back(sal::static_int_cast<char>(c));
+            break;
+        }
+    }
+    return fclose(fp) == 0;
+}
+
+bool Options::initOptions (std::vector< std::string > & rArgs)
+{
+    return initOptions_Impl (rArgs);
+}
+
+bool Options::badOption (char const * reason, char const * option) const
+{
+    (void) fprintf(stderr, "%s: %s option '%s'\n", m_program.c_str(), reason, option);
+    return printUsage();
+}
+
+bool Options::printUsage() const
+{
+    printUsage_Impl();
+    return false;
+}
+
+} // namespace registry::tools
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */