| Message ID | 20210511153958.34527-1-andriy.shevchenko@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,1/4] lib/vsprintf: Allow to override ISO 8601 date and time separator | expand |
On Tue 2021-05-11 18:39:55, Andy Shevchenko wrote: > ISO 8601 defines 'T' as a separator between date and time. Though, > some ABIs use time and date with ' ' (space) separator instead. > > Add a flavour to the %pt specifier to override default separator. > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Mladek <pmladek@suse.com> I am going to queue the entire patchset for 5.14 via the printk tree the following week unless anyone complains in the meantime. Best Regards, Petr
On (21/05/13 11:34), Petr Mladek wrote: > On Tue 2021-05-11 18:39:55, Andy Shevchenko wrote: > > ISO 8601 defines 'T' as a separator between date and time. Though, > > some ABIs use time and date with ' ' (space) separator instead. > > > > Add a flavour to the %pt specifier to override default separator. > > > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > > Reviewed-by: Petr Mladek <pmladek@suse.com> > > I am going to queue the entire patchset for 5.14 via the printk tree > the following week unless anyone complains in the meantime. Looks good to me Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
On Thu 2021-05-13 11:34:18, Petr Mladek wrote: > On Tue 2021-05-11 18:39:55, Andy Shevchenko wrote: > > ISO 8601 defines 'T' as a separator between date and time. Though, > > some ABIs use time and date with ' ' (space) separator instead. > > > > Add a flavour to the %pt specifier to override default separator. > > > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > > Reviewed-by: Petr Mladek <pmladek@suse.com> > > I am going to queue the entire patchset for 5.14 via the printk tree > the following week unless anyone complains in the meantime. The patchset has been committed into print/linux.git, branch for-5.14-vsprintf-pts. Best Regards, Petr
diff --git a/Documentation/core-api/printk-formats.rst b/Documentation/core-api/printk-formats.rst index f063a384c7c8..1dd4ebf0be79 100644 --- a/Documentation/core-api/printk-formats.rst +++ b/Documentation/core-api/printk-formats.rst @@ -514,9 +514,10 @@ Time and date :: %pt[RT] YYYY-mm-ddTHH:MM:SS + %pt[RT]s YYYY-mm-dd HH:MM:SS %pt[RT]d YYYY-mm-dd %pt[RT]t HH:MM:SS - %pt[RT][dt][r] + %pt[RT][dt][r][s] For printing date and time as represented by:: @@ -528,6 +529,10 @@ in human readable format. By default year will be incremented by 1900 and month by 1. Use %pt[RT]r (raw) to suppress this behaviour. +The %pt[RT]s (space) will override ISO 8601 separator by using ' ' (space) +instead of 'T' (Capital T) between date and time. It won't have any effect +when date or time is omitted. + Passed by reference. struct clk diff --git a/lib/test_printf.c b/lib/test_printf.c index ec0d5976bb69..8ac71aee46af 100644 --- a/lib/test_printf.c +++ b/lib/test_printf.c @@ -528,6 +528,11 @@ time_and_date(void) test("0119-00-04T15:32:23", "%ptTr", &t); test("15:32:23|2019-01-04", "%ptTt|%ptTd", &t, &t); test("15:32:23|0119-00-04", "%ptTtr|%ptTdr", &t, &t); + + test("2019-01-04 15:32:23", "%ptTs", &t); + test("0119-00-04 15:32:23", "%ptTsr", &t); + test("15:32:23|2019-01-04", "%ptTts|%ptTds", &t, &t); + test("15:32:23|0119-00-04", "%ptTtrs|%ptTdrs", &t, &t); } static void __init diff --git a/lib/vsprintf.c b/lib/vsprintf.c index f0c35d9b65bf..14a4e4e8a657 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -1834,7 +1834,8 @@ char *rtc_str(char *buf, char *end, const struct rtc_time *tm, struct printf_spec spec, const char *fmt) { bool have_t = true, have_d = true; - bool raw = false; + bool raw = false, iso8601_separator = true; + bool found = true; int count = 2; if (check_pointer(&buf, end, tm, spec)) @@ -1851,14 +1852,25 @@ char *rtc_str(char *buf, char *end, const struct rtc_time *tm, break; } - raw = fmt[count] == 'r'; + do { + switch (fmt[count++]) { + case 'r': + raw = true; + break; + case 's': + iso8601_separator = false; + break; + default: + found = false; + break; + } + } while (found); if (have_d) buf = date_str(buf, end, tm, raw); if (have_d && have_t) { - /* Respect ISO 8601 */ if (buf < end) - *buf = 'T'; + *buf = iso8601_separator ? 'T' : ' '; buf++; } if (have_t) @@ -2298,7 +2310,7 @@ early_param("no_hash_pointers", no_hash_pointers_enable); * - 'd[234]' For a dentry name (optionally 2-4 last components) * - 'D[234]' Same as 'd' but for a struct file * - 'g' For block_device name (gendisk + partition number) - * - 't[RT][dt][r]' For time and date as represented by: + * - 't[RT][dt][r][s]' For time and date as represented by: * R struct rtc_time * T time64_t * - 'C' For a clock, it prints the name (Common Clock Framework) or address
ISO 8601 defines 'T' as a separator between date and time. Though, some ABIs use time and date with ' ' (space) separator instead. Add a flavour to the %pt specifier to override default separator. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- v2: fixed the parameters set, renamed variable and dropped comment (Petr) Documentation/core-api/printk-formats.rst | 7 ++++++- lib/test_printf.c | 5 +++++ lib/vsprintf.c | 22 +++++++++++++++++----- 3 files changed, 28 insertions(+), 6 deletions(-)