summaryrefslogtreecommitdiffstats
path: root/src/lib/util/path.h
diff options
context:
space:
mode:
author Vas Crabb <cuavas@users.noreply.github.com>2021-08-22 09:06:15 +1000
committer GitHub <noreply@github.com>2021-08-22 09:06:15 +1000
commite8bbea1fc6e94e14768509d322f6c624403ffb36 (patch)
tree74dd1606a900d83de8aecff17a6737af4113308d /src/lib/util/path.h
parente319bde5fc3696d7f48f62b15b6366c4377fe5d1 (diff)
formats, osd, util: Started refactoring file I/O stuff. (#8456)
Added more modern generic I/O interfaces with implementation backed by stdio, osd_file and core_file, replacing io_generic. Also replaced core_file's build-in zlib compression with a filter. unzip.cpp, un7z.cpp: Added option to supply abstract I/O interface rather than filename. Converted osd_file, core_file, archive_file, chd_file and device_image_interface to use std::error_condition rather than their own error enums. Allow mounting TI-99 RPK from inside archives.
Diffstat (limited to 'src/lib/util/path.h')
-rw-r--r--src/lib/util/path.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/src/lib/util/path.h b/src/lib/util/path.h
new file mode 100644
index 00000000000..1291d7b17d3
--- /dev/null
+++ b/src/lib/util/path.h
@@ -0,0 +1,65 @@
+// license:BSD-3-Clause
+// copyright-holders:Vas Crabb
+/***************************************************************************
+
+ path.h
+
+ Filesystem path utilties
+
+***************************************************************************/
+#ifndef MAME_LIB_UTIL_PATH_H
+#define MAME_LIB_UTIL_PATH_H
+
+#include "osdfile.h" // for PATH_SEPARATOR
+
+#include <string>
+#include <utility>
+
+
+namespace util {
+
+/***************************************************************************
+ INLINE FUNCTIONS
+***************************************************************************/
+
+// is a given character a directory separator?
+
+constexpr bool is_directory_separator(char c)
+{
+#if defined(WIN32)
+ return ('\\' == c) || ('/' == c) || (':' == c);
+#else
+ return '/' == c;
+#endif
+}
+
+
+// append to a path
+
+template <typename T, typename... U>
+inline std::string &path_append(std::string &path, T &&next, U &&... more)
+{
+ if (!path.empty() && !is_directory_separator(path.back()))
+ path.append(PATH_SEPARATOR);
+ path.append(std::forward<T>(next));
+ if constexpr (sizeof...(U))
+ return path_append(std::forward<U>(more)...);
+ else
+ return path;
+}
+
+
+// concatenate paths
+
+template <typename T, typename... U>
+inline std::string path_concat(T &&first, U &&... more)
+{
+ std::string result(std::forward<T>(first));
+ if constexpr (sizeof...(U))
+ path_append(result, std::forward<U>(more)...);
+ return result;
+}
+
+} // namespace util
+
+#endif // MAME_LIB_UTIL_PATH_H