Add an unpatched version of xz, XZ Utils, to /trunk/deps/third_party

xz/src/xz/coder.h

+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       coder.h
+/// \brief      Compresses or uncompresses a file
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+enum operation_mode {
+        MODE_COMPRESS,
+        MODE_DECOMPRESS,
+        MODE_TEST,
+        MODE_LIST,
+};
+
+
+// NOTE: The order of these is significant in suffix.c.
+enum format_type {
+        FORMAT_AUTO,
+        FORMAT_XZ,
+        FORMAT_LZMA,
+        // HEADER_GZIP,
+        FORMAT_RAW,
+};
+
+
+/// Operation mode of the command line tool. This is set in args.c and read
+/// in several files.
+extern enum operation_mode opt_mode;
+
+/// File format to use when encoding or what format(s) to accept when
+/// decoding. This is a global because it's needed also in suffix.c.
+/// This is set in args.c.
+extern enum format_type opt_format;
+
+/// If true, the compression settings are automatically adjusted down if
+/// they exceed the memory usage limit.
+extern bool opt_auto_adjust;
+
+
+/// Set the integrity check type used when compressing
+extern void coder_set_check(lzma_check check);
+
+/// Set preset number
+extern void coder_set_preset(size_t new_preset);
+
+/// Enable extreme mode
+extern void coder_set_extreme(void);
+
+/// Add a filter to the custom filter chain
+extern void coder_add_filter(lzma_vli id, void *options);
+
+///
+extern void coder_set_compression_settings(void);
+
+/// Compress or decompress the given file
+extern void coder_run(const char *filename);