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-rw-r--r--main.cc11
1 files changed, 6 insertions, 5 deletions
diff --git a/main.cc b/main.cc
index 3fdf9da..4998633 100644
--- a/main.cc
+++ b/main.cc
@@ -84,8 +84,8 @@ struct { const char * from; const char * to; } const known_extensions[] = {
struct Lzma_options
{
- int dictionary_size; // 4KiB..512MiB
- int match_len_limit; // 5..273
+ int dictionary_size; // 4 KiB .. 512 MiB
+ int match_len_limit; // 5 .. 273
};
enum Mode { m_compress, m_decompress, m_test };
@@ -115,7 +115,7 @@ void show_help( const long num_online )
" -n, --threads=<n> set number of (de)compression threads [%ld]\n"
" -o, --output=<file> if reading stdin, place the output into <file>\n"
" -q, --quiet suppress all messages\n"
- " -s, --dictionary-size=<bytes> set dictionary size limit in bytes [8MiB]\n"
+ " -s, --dictionary-size=<bytes> set dictionary size limit in bytes [8 MiB]\n"
" -t, --test test compressed file integrity\n"
" -v, --verbose be verbose (a 2nd -v gives more)\n"
" -1 .. -9 set compression level [default 6]\n"
@@ -132,7 +132,8 @@ void show_help( const long num_online )
"The bidimensional parameter space of LZMA can't be mapped to a linear\n"
"scale optimal for all files. If your files are large, very repetitive,\n"
"etc, you may need to use the --match-length and --dictionary-size\n"
- "options directly to achieve optimal performance.\n"
+ "options directly to achieve optimal performance. For example, -9m64\n"
+ "usually compresses executables more (and faster) than -9.\n"
"\nExit status: 0 for a normal exit, 1 for environmental problems (file\n"
"not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or\n"
"invalid input file, 3 for an internal consistency error (eg, bug) which\n"
@@ -260,7 +261,7 @@ int open_instream( const char * const name, struct stat * const in_statsp,
const bool can_read = ( i == 0 &&
( S_ISBLK( mode ) || S_ISCHR( mode ) ||
S_ISFIFO( mode ) || S_ISSOCK( mode ) ) );
- const bool no_ofile = to_stdout || ( program_mode == m_test );
+ const bool no_ofile = to_stdout || program_mode == m_test;
if( i != 0 || ( !S_ISREG( mode ) && ( !can_read || !no_ofile ) ) )
{
if( verbosity >= 0 )