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xz: Automatically align column headings in xz -lvv.

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Lasse Collin 2019-03-04 21:20:39 +02:00
parent 6cb42e8aa1
commit a750c35a7d
1 changed files with 211 additions and 50 deletions
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261
src/xz/list.c
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@ -100,6 +100,63 @@ static int colon_strs_fw[ARRAY_SIZE(colon_strs)];
#define COLON_STR(num) colon_strs_fw[num], _(colon_strs[num])
/// Column headings
struct {
/// Table column heading string
const char *str;
/// Number of terminal-columns to use for this table-column.
/// If a translated string is longer than the initial value,
/// this value will be increased in init_headings().
int columns;
/// Field width to use for printf() to pad "str" to use "columns"
/// number of columns on a terminal. This is calculated in
/// init_headings().
int fw;
} headings[] = {
{ N_("Stream"), 6, 0 },
{ N_("Block"), 9, 0 },
{ N_("Blocks"), 9, 0 },
{ N_("CompOffset"), 15, 0 },
{ N_("UncompOffset"), 15, 0 },
{ N_("CompSize"), 15, 0 },
{ N_("UncompSize"), 15, 0 },
{ N_("TotalSize"), 15, 0 },
{ N_("Ratio"), 5, 0 },
{ N_("Check"), 10, 0 },
{ N_("CheckVal"), 1, 0 },
{ N_("Padding"), 7, 0 },
{ N_("Header"), 5, 0 },
{ N_("Flags"), 2, 0 },
{ N_("MemUsage"), 7 + 4, 0 }, // +4 is for " MiB"
{ N_("Filters"), 1, 0 },
};
/// Enum matching the above strings.
enum {
HEADING_STREAM,
HEADING_BLOCK,
HEADING_BLOCKS,
HEADING_COMPOFFSET,
HEADING_UNCOMPOFFSET,
HEADING_COMPSIZE,
HEADING_UNCOMPSIZE,
HEADING_TOTALSIZE,
HEADING_RATIO,
HEADING_CHECK,
HEADING_CHECKVAL,
HEADING_PADDING,
HEADING_HEADERSIZE,
HEADING_HEADERFLAGS,
HEADING_MEMUSAGE,
HEADING_FILTERS,
};
#define HEADING_STR(num) headings[num].fw, _(headings[num].str)
/// Check ID to string mapping
static const char check_names[LZMA_CHECK_ID_MAX + 1][12] = {
// TRANSLATORS: Indicates that there is no integrity check.
@ -155,10 +212,9 @@ static struct {
} totals = { 0, 0, 0, 0, 0, 0, 0, 0, 50000002, true };
/// Initialize the printf field widths that are needed to get nicely aligned
/// output with translated strings.
/// Initialize colon_strs_fw[].
static void
init_field_widths(void)
init_colon_strs(void)
{
// Lengths of translated strings as bytes.
size_t lens[ARRAY_SIZE(colon_strs)];
@ -196,6 +252,44 @@ init_field_widths(void)
}
/// Initialize headings[].
static void
init_headings(void)
{
for (unsigned i = 0; i < ARRAY_SIZE(headings); ++i) {
size_t len;
size_t w = tuklib_mbstr_width(headings[i].str, &len);
// Error handling like in init_colon_strs().
assert(w != (size_t)-1);
if (w == (size_t)-1)
w = len;
// If the translated string is wider than the minimum width
// set at compile time, increase the width.
if ((size_t)(headings[i].columns) < w)
headings[i].columns = w;
// Calculate the field width for printf("%*s") so that
// the string uses .columns number of columns on a terminal.
headings[i].fw = (int)(len + headings[i].columns - w);
}
return;
}
/// Initialize the printf field widths that are needed to get nicely aligned
/// output with translated strings.
static void
init_field_widths(void)
{
init_colon_strs();
init_headings();
return;
}
/// Convert XZ Utils version number to a string.
static const char *
xz_ver_to_str(uint32_t ver)
@ -372,6 +466,10 @@ parse_block_header(file_pair *pair, const lzma_index_iter *iter,
// Check the Block Flags. These must be done before calling
// lzma_block_compressed_size(), because it overwrites
// block.compressed_size.
//
// NOTE: If you add new characters here, update the minimum number of
// columns in headings[HEADING_HEADERFLAGS] to match the number of
// characters used here.
bhi->flags[0] = block.compressed_size != LZMA_VLI_UNKNOWN
? 'c' : '-';
bhi->flags[1] = block.uncompressed_size != LZMA_VLI_UNKNOWN
@ -670,13 +768,19 @@ print_info_adv(xz_file_info *xfi, file_pair *pair)
// Print information about the Streams.
//
// TRANSLATORS: The second line is column headings. All except
// Check are right aligned; Check is left aligned. Test with
// "xz -lv foo.xz".
puts(_(" Streams:\n Stream Blocks"
" CompOffset UncompOffset"
" CompSize UncompSize Ratio"
" Check Padding"));
// All except Check are right aligned; Check is left aligned.
// Test with "xz -lv foo.xz".
printf(" %s\n %*s %*s %*s %*s %*s %*s %*s %-*s %*s\n",
_(colon_strs[COLON_STR_STREAMS]),
HEADING_STR(HEADING_STREAM),
HEADING_STR(HEADING_BLOCKS),
HEADING_STR(HEADING_COMPOFFSET),
HEADING_STR(HEADING_UNCOMPOFFSET),
HEADING_STR(HEADING_COMPSIZE),
HEADING_STR(HEADING_UNCOMPSIZE),
HEADING_STR(HEADING_RATIO),
HEADING_STR(HEADING_CHECK),
HEADING_STR(HEADING_PADDING));
lzma_index_iter iter;
lzma_index_iter_init(&iter, xfi->idx);
@ -689,10 +793,18 @@ print_info_adv(xz_file_info *xfi, file_pair *pair)
uint64_to_str(iter.stream.uncompressed_offset, 3),
};
printf(" %*s %*s %*s %*s ",
tuklib_mbstr_fw(cols1[0], 6), cols1[0],
tuklib_mbstr_fw(cols1[1], 9), cols1[1],
tuklib_mbstr_fw(cols1[2], 15), cols1[2],
tuklib_mbstr_fw(cols1[3], 15), cols1[3]);
tuklib_mbstr_fw(cols1[0],
headings[HEADING_STREAM].columns),
cols1[0],
tuklib_mbstr_fw(cols1[1],
headings[HEADING_BLOCKS].columns),
cols1[1],
tuklib_mbstr_fw(cols1[2],
headings[HEADING_COMPOFFSET].columns),
cols1[2],
tuklib_mbstr_fw(cols1[3],
headings[HEADING_UNCOMPOFFSET].columns),
cols1[3]);
const char *cols2[5] = {
uint64_to_str(iter.stream.compressed_size, 0),
@ -703,11 +815,21 @@ print_info_adv(xz_file_info *xfi, file_pair *pair)
uint64_to_str(iter.stream.padding, 2),
};
printf("%*s %*s %*s %-*s %*s\n",
tuklib_mbstr_fw(cols2[0], 15), cols2[0],
tuklib_mbstr_fw(cols2[1], 15), cols2[1],
tuklib_mbstr_fw(cols2[2], 5), cols2[2],
tuklib_mbstr_fw(cols2[3], 10), cols2[3],
tuklib_mbstr_fw(cols2[4], 7), cols2[4]);
tuklib_mbstr_fw(cols2[0],
headings[HEADING_COMPSIZE].columns),
cols2[0],
tuklib_mbstr_fw(cols2[1],
headings[HEADING_UNCOMPSIZE].columns),
cols2[1],
tuklib_mbstr_fw(cols2[2],
headings[HEADING_RATIO].columns),
cols2[2],
tuklib_mbstr_fw(cols2[3],
headings[HEADING_CHECK].columns),
cols2[3],
tuklib_mbstr_fw(cols2[4],
headings[HEADING_PADDING].columns),
cols2[4]);
// Update the maximum Check size.
if (lzma_check_size(iter.stream.flags->check) > check_max)
@ -723,26 +845,43 @@ print_info_adv(xz_file_info *xfi, file_pair *pair)
// Print information about the Blocks but only if there is
// at least one Block.
if (lzma_index_block_count(xfi->idx) > 0) {
// Calculate the width of the CheckVal field.
const int checkval_width = my_max(8, 2 * check_max);
// Calculate the width of the CheckVal column. This can be
// used as is as the field width for printf() when printing
// the actual check value as it is hexadecimal. However, to
// print the column heading, further calculation is needed
// to handle a translated string (it's done a few lines later).
const int checkval_width = my_max(
(uint32_t)(headings[HEADING_CHECKVAL].columns),
2 * check_max);
// TRANSLATORS: The second line is column headings. All
// except Check are right aligned; Check is left aligned.
printf(_(" Blocks:\n Stream Block"
" CompOffset UncompOffset"
" TotalSize UncompSize Ratio Check"));
// All except Check are right aligned; Check is left aligned.
printf(" %s\n %*s %*s %*s %*s %*s %*s %*s %-*s",
_(colon_strs[COLON_STR_BLOCKS]),
HEADING_STR(HEADING_STREAM),
HEADING_STR(HEADING_BLOCK),
HEADING_STR(HEADING_COMPOFFSET),
HEADING_STR(HEADING_UNCOMPOFFSET),
HEADING_STR(HEADING_TOTALSIZE),
HEADING_STR(HEADING_UNCOMPSIZE),
HEADING_STR(HEADING_RATIO),
detailed ? headings[HEADING_CHECK].fw : 1,
_(headings[HEADING_CHECK].str));
if (detailed) {
// TRANSLATORS: These are additional column headings
// for the most verbose listing mode. CheckVal
// (Check value), Flags, and Filters are left aligned.
// Header (Block Header Size), CompSize, and MemUsage
// are right aligned. %*s is replaced with 0-120
// spaces to make the CheckVal column wide enough.
// Test with "xz -lvv foo.xz".
printf(_(" CheckVal %*s Header Flags "
"CompSize MemUsage Filters"),
checkval_width - 8, "");
// CheckVal (Check value), Flags, and Filters are
// left aligned. Block Header Size, CompSize, and
// MemUsage are right aligned. Test with
// "xz -lvv foo.xz".
printf(" %-*s %*s %-*s %*s %*s %s",
headings[HEADING_CHECKVAL].fw
+ checkval_width
- headings[HEADING_CHECKVAL].columns,
_(headings[HEADING_CHECKVAL].str),
HEADING_STR(HEADING_HEADERSIZE),
HEADING_STR(HEADING_HEADERFLAGS),
HEADING_STR(HEADING_COMPSIZE),
HEADING_STR(HEADING_MEMUSAGE),
_(headings[HEADING_FILTERS].str));
}
putchar('\n');
@ -764,10 +903,18 @@ print_info_adv(xz_file_info *xfi, file_pair *pair)
iter.block.uncompressed_file_offset, 3)
};
printf(" %*s %*s %*s %*s ",
tuklib_mbstr_fw(cols1[0], 6), cols1[0],
tuklib_mbstr_fw(cols1[1], 9), cols1[1],
tuklib_mbstr_fw(cols1[2], 15), cols1[2],
tuklib_mbstr_fw(cols1[3], 15), cols1[3]);
tuklib_mbstr_fw(cols1[0],
headings[HEADING_STREAM].columns),
cols1[0],
tuklib_mbstr_fw(cols1[1],
headings[HEADING_BLOCK].columns),
cols1[1],
tuklib_mbstr_fw(cols1[2],
headings[HEADING_COMPOFFSET].columns),
cols1[2],
tuklib_mbstr_fw(cols1[3], headings[
HEADING_UNCOMPOFFSET].columns),
cols1[3]);
const char *cols2[4] = {
uint64_to_str(iter.block.total_size, 0),
@ -778,11 +925,18 @@ print_info_adv(xz_file_info *xfi, file_pair *pair)
_(check_names[iter.stream.flags->check])
};
printf("%*s %*s %*s %-*s",
tuklib_mbstr_fw(cols2[0], 15), cols2[0],
tuklib_mbstr_fw(cols2[1], 15), cols2[1],
tuklib_mbstr_fw(cols2[2], 5), cols2[2],
tuklib_mbstr_fw(cols2[3], detailed ? 11 : 1),
cols2[3]);
tuklib_mbstr_fw(cols2[0],
headings[HEADING_TOTALSIZE].columns),
cols2[0],
tuklib_mbstr_fw(cols2[1],
headings[HEADING_UNCOMPSIZE].columns),
cols2[1],
tuklib_mbstr_fw(cols2[2],
headings[HEADING_RATIO].columns),
cols2[2],
tuklib_mbstr_fw(cols2[3], detailed
? headings[HEADING_CHECK].columns : 1),
cols2[3]);
if (detailed) {
const lzma_vli compressed_size
@ -803,13 +957,20 @@ print_info_adv(xz_file_info *xfi, file_pair *pair)
};
// Show MiB for memory usage, because it
// is the only size which is not in bytes.
printf("%-*s %*s %-5s %*s %*s MiB %s",
printf(" %-*s %*s %-*s %*s %*s MiB %s",
checkval_width, cols3[0],
tuklib_mbstr_fw(cols3[1], 6), cols3[1],
tuklib_mbstr_fw(cols3[1], headings[
HEADING_HEADERSIZE].columns),
cols3[1],
tuklib_mbstr_fw(cols3[2], headings[
HEADING_HEADERFLAGS].columns),
cols3[2],
tuklib_mbstr_fw(cols3[3], 15),
cols3[3],
tuklib_mbstr_fw(cols3[4], 7), cols3[4],
tuklib_mbstr_fw(cols3[3], headings[
HEADING_COMPSIZE].columns),
cols3[3],
tuklib_mbstr_fw(cols3[4], headings[
HEADING_MEMUSAGE].columns - 4),
cols3[4],
cols3[5]);
}