diff options
Diffstat (limited to 'library/clock.tcl')
| -rw-r--r-- | library/clock.tcl | 2953 |
1 files changed, 241 insertions, 2712 deletions
diff --git a/library/clock.tcl b/library/clock.tcl index b468fea..b518128 100644 --- a/library/clock.tcl +++ b/library/clock.tcl @@ -10,22 +10,15 @@ #---------------------------------------------------------------------- # # Copyright © 2004-2007 Kevin B. Kenny +# Copyright © 2015 by Sergey G. Brester aka sebres. # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. # #---------------------------------------------------------------------- -# msgcat 1.7 features are used. We need access to the Registry on Windows -# systems. +# msgcat 1.7 features are used. -uplevel \#0 { - package require msgcat 1.7 - if { $::tcl_platform(platform) eq {windows} } { - if { [catch { package require registry 1.1 }] } { - namespace eval ::tcl::clock [list variable NoRegistry {}] - } - } -} +package require msgcat 1.7 # Put the library directory into the namespace for the ensemble so that the # library code can find message catalogs and time zone definition files. @@ -58,9 +51,7 @@ namespace eval ::tcl::clock { # Import the message catalog commands that we use. - namespace import ::msgcat::mcload namespace import ::msgcat::mclocale - proc mc {args} { tailcall ::msgcat::mcn [namespace current] {*}$args } namespace import ::msgcat::mcpackagelocale } @@ -287,6 +278,13 @@ proc ::tcl::clock::Initialize {} { variable FEB_28 58 + # Default configuration + + configure -current-locale [mclocale] + #configure -default-locale C + #configure -year-century 2000 \ + # -century-switch 38 + # Translation table to map Windows TZI onto cities, so that the Olson # rules can apply. In some cases the mapping is ambiguous, so it's wise # to specify $::env(TCL_TZ) rather than simply depending on the system @@ -383,152 +381,6 @@ proc ::tcl::clock::Initialize {} { {46800 0 3600 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0} :Pacific/Tongatapu }] - # Groups of fields that specify the date, priorities, and code bursts that - # determine Julian Day Number given those groups. The code in [clock - # scan] will choose the highest priority (lowest numbered) set of fields - # that determines the date. - - variable DateParseActions { - - { seconds } 0 {} - - { julianDay } 1 {} - - { era century yearOfCentury month dayOfMonth } 2 { - dict set date year [expr { 100 * [dict get $date century] - + [dict get $date yearOfCentury] }] - set date [GetJulianDayFromEraYearMonthDay $date[set date {}] \ - $changeover] - } - { era century yearOfCentury dayOfYear } 2 { - dict set date year [expr { 100 * [dict get $date century] - + [dict get $date yearOfCentury] }] - set date [GetJulianDayFromEraYearDay $date[set date {}] \ - $changeover] - } - - { century yearOfCentury month dayOfMonth } 3 { - dict set date era CE - dict set date year [expr { 100 * [dict get $date century] - + [dict get $date yearOfCentury] }] - set date [GetJulianDayFromEraYearMonthDay $date[set date {}] \ - $changeover] - } - { century yearOfCentury dayOfYear } 3 { - dict set date era CE - dict set date year [expr { 100 * [dict get $date century] - + [dict get $date yearOfCentury] }] - set date [GetJulianDayFromEraYearDay $date[set date {}] \ - $changeover] - } - { iso8601Century iso8601YearOfCentury iso8601Week dayOfWeek } 3 { - dict set date era CE - dict set date iso8601Year \ - [expr { 100 * [dict get $date iso8601Century] - + [dict get $date iso8601YearOfCentury] }] - set date [GetJulianDayFromEraYearWeekDay $date[set date {}] \ - $changeover] - } - - { yearOfCentury month dayOfMonth } 4 { - set date [InterpretTwoDigitYear $date[set date {}] $baseTime] - dict set date era CE - set date [GetJulianDayFromEraYearMonthDay $date[set date {}] \ - $changeover] - } - { yearOfCentury dayOfYear } 4 { - set date [InterpretTwoDigitYear $date[set date {}] $baseTime] - dict set date era CE - set date [GetJulianDayFromEraYearDay $date[set date {}] \ - $changeover] - } - { iso8601YearOfCentury iso8601Week dayOfWeek } 4 { - set date [InterpretTwoDigitYear \ - $date[set date {}] $baseTime \ - iso8601YearOfCentury iso8601Year] - dict set date era CE - set date [GetJulianDayFromEraYearWeekDay $date[set date {}] \ - $changeover] - } - - { month dayOfMonth } 5 { - set date [AssignBaseYear $date[set date {}] \ - $baseTime $timeZone $changeover] - set date [GetJulianDayFromEraYearMonthDay $date[set date {}] \ - $changeover] - } - { dayOfYear } 5 { - set date [AssignBaseYear $date[set date {}] \ - $baseTime $timeZone $changeover] - set date [GetJulianDayFromEraYearDay $date[set date {}] \ - $changeover] - } - { iso8601Week dayOfWeek } 5 { - set date [AssignBaseIso8601Year $date[set date {}] \ - $baseTime $timeZone $changeover] - set date [GetJulianDayFromEraYearWeekDay $date[set date {}] \ - $changeover] - } - - { dayOfMonth } 6 { - set date [AssignBaseMonth $date[set date {}] \ - $baseTime $timeZone $changeover] - set date [GetJulianDayFromEraYearMonthDay $date[set date {}] \ - $changeover] - } - - { dayOfWeek } 7 { - set date [AssignBaseWeek $date[set date {}] \ - $baseTime $timeZone $changeover] - set date [GetJulianDayFromEraYearWeekDay $date[set date {}] \ - $changeover] - } - - {} 8 { - set date [AssignBaseJulianDay $date[set date {}] \ - $baseTime $timeZone $changeover] - } - } - - # Groups of fields that specify time of day, priorities, and code that - # processes them - - variable TimeParseActions { - - seconds 1 {} - - { hourAMPM minute second amPmIndicator } 2 { - dict set date secondOfDay [InterpretHMSP $date] - } - { hour minute second } 2 { - dict set date secondOfDay [InterpretHMS $date] - } - - { hourAMPM minute amPmIndicator } 3 { - dict set date second 0 - dict set date secondOfDay [InterpretHMSP $date] - } - { hour minute } 3 { - dict set date second 0 - dict set date secondOfDay [InterpretHMS $date] - } - - { hourAMPM amPmIndicator } 4 { - dict set date minute 0 - dict set date second 0 - dict set date secondOfDay [InterpretHMSP $date] - } - { hour } 4 { - dict set date minute 0 - dict set date second 0 - dict set date secondOfDay [InterpretHMS $date] - } - - { } 5 { - dict set date secondOfDay 0 - } - } - # Legacy time zones, used primarily for parsing RFC822 dates. variable LegacyTimeZone [dict create \ @@ -625,17 +477,9 @@ proc ::tcl::clock::Initialize {} { # Caches - variable LocaleNumeralCache {}; # Dictionary whose keys are locale - # names and whose values are pairs - # comprising regexes matching numerals - # in the given locales and dictionaries - # mapping the numerals to their numeric - # values. - # variable CachedSystemTimeZone; # If 'CachedSystemTimeZone' exists, - # it contains the value of the - # system time zone, as determined from - # the environment. - variable TimeZoneBad {}; # Dictionary whose keys are time zone + variable LocFmtMap [dict create]; # Dictionary with localized format maps + + variable TimeZoneBad [dict create]; # Dictionary whose keys are time zone # names and whose values are 1 if # the time zone is unknown and 0 # if it is known. @@ -644,1698 +488,204 @@ proc ::tcl::clock::Initialize {} { # comprising start time, UTC offset, # Daylight Saving Time indicator, and # time zone abbreviation. - variable FormatProc; # Array mapping format group - # and locale to the name of a procedure - # that renders the given format + + variable mcLocales [dict create]; # Dictionary with loaded locales + variable mcMergedCat [dict create]; # Dictionary with merged locale catalogs } ::tcl::clock::Initialize #---------------------------------------------------------------------- -# -# clock format -- -# -# Formats a count of seconds since the Posix Epoch as a time of day. -# -# The 'clock format' command formats times of day for output. Refer to the -# user documentation to see what it does. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::format { args } { - variable FormatProc - variable TZData - - lassign [ParseFormatArgs {*}$args] format locale timezone - set locale [string tolower $locale] - set clockval [lindex $args 0] - - # Get the data for time changes in the given zone - - if {$timezone eq ""} { - set timezone [GetSystemTimeZone] - } - if {![info exists TZData($timezone)]} { - if {[catch {SetupTimeZone $timezone} retval opts]} { - dict unset opts -errorinfo - return -options $opts $retval - } - } - - # Build a procedure to format the result. Cache the built procedure's name - # in the 'FormatProc' array to avoid losing its internal representation, - # which contains the name resolution. - - set procName formatproc'$format'$locale - set procName [namespace current]::[string map {: {\:} \\ {\\}} $procName] - if {[info exists FormatProc($procName)]} { - set procName $FormatProc($procName) - } else { - set FormatProc($procName) \ - [ParseClockFormatFormat $procName $format $locale] - } - - return [$procName $clockval $timezone] - -} - -#---------------------------------------------------------------------- +# mcget -- # -# ParseClockFormatFormat -- +# Return the merged translation catalog for the ::tcl::clock namespace +# Searching of catalog is similar to "msgcat::mc". # -# Builds and caches a procedure that formats a time value. +# Contrary to "msgcat::mc" may additionally load a package catalog +# on demand. # -# Parameters: -# format -- Format string to use -# locale -- Locale in which the format string is to be interpreted +# Arguments: +# loc The locale used for translation. # # Results: -# Returns the name of the newly-built procedure. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::ParseClockFormatFormat {procName format locale} { - - if {[namespace which $procName] ne {}} { - return $procName - } - - # Map away the locale-dependent composite format groups - - EnterLocale $locale - - # Change locale if a fresh locale has been given on the command line. - - try { - return [ParseClockFormatFormat2 $format $locale $procName] - } trap CLOCK {result opts} { - dict unset opts -errorinfo - return -options $opts $result - } -} - -proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} { - set didLocaleEra 0 - set didLocaleNumerals 0 - set preFormatCode \ - [string map [list @GREGORIAN_CHANGE_DATE@ \ - [mc GREGORIAN_CHANGE_DATE]] \ - { - variable TZData - set date [GetDateFields $clockval \ - $TZData($timezone) \ - @GREGORIAN_CHANGE_DATE@] - }] - set formatString {} - set substituents {} - set state {} - - set format [LocalizeFormat $locale $format] - - foreach char [split $format {}] { - switch -exact -- $state { - {} { - if { [string equal % $char] } { - set state percent - } else { - append formatString $char - } - } - percent { # Character following a '%' character - set state {} - switch -exact -- $char { - % { # A literal character, '%' - append formatString %% - } - a { # Day of week, abbreviated - append formatString %s - append substituents \ - [string map \ - [list @DAYS_OF_WEEK_ABBREV@ \ - [list [mc DAYS_OF_WEEK_ABBREV]]] \ - { [lindex @DAYS_OF_WEEK_ABBREV@ \ - [expr {[dict get $date dayOfWeek] \ - % 7}]]}] - } - A { # Day of week, spelt out. - append formatString %s - append substituents \ - [string map \ - [list @DAYS_OF_WEEK_FULL@ \ - [list [mc DAYS_OF_WEEK_FULL]]] \ - { [lindex @DAYS_OF_WEEK_FULL@ \ - [expr {[dict get $date dayOfWeek] \ - % 7}]]}] - } - b - h { # Name of month, abbreviated. - append formatString %s - append substituents \ - [string map \ - [list @MONTHS_ABBREV@ \ - [list [mc MONTHS_ABBREV]]] \ - { [lindex @MONTHS_ABBREV@ \ - [expr {[dict get $date month]-1}]]}] - } - B { # Name of month, spelt out - append formatString %s - append substituents \ - [string map \ - [list @MONTHS_FULL@ \ - [list [mc MONTHS_FULL]]] \ - { [lindex @MONTHS_FULL@ \ - [expr {[dict get $date month]-1}]]}] - } - C { # Century number - append formatString %02d - append substituents \ - { [expr {[dict get $date year] / 100}]} - } - d { # Day of month, with leading zero - append formatString %02d - append substituents { [dict get $date dayOfMonth]} - } - e { # Day of month, without leading zero - append formatString %2d - append substituents { [dict get $date dayOfMonth]} - } - E { # Format group in a locale-dependent - # alternative era - set state percentE - if {!$didLocaleEra} { - append preFormatCode \ - [string map \ - [list @LOCALE_ERAS@ \ - [list [mc LOCALE_ERAS]]] \ - { - set date [GetLocaleEra \ - $date[set date {}] \ - @LOCALE_ERAS@]}] \n - set didLocaleEra 1 - } - if {!$didLocaleNumerals} { - append preFormatCode \ - [list set localeNumerals \ - [mc LOCALE_NUMERALS]] \n - set didLocaleNumerals 1 - } - } - g { # Two-digit year relative to ISO8601 - # week number - append formatString %02d - append substituents \ - { [expr { [dict get $date iso8601Year] % 100 }]} - } - G { # Four-digit year relative to ISO8601 - # week number - append formatString %02d - append substituents { [dict get $date iso8601Year]} - } - H { # Hour in the 24-hour day, leading zero - append formatString %02d - append substituents \ - { [expr { [dict get $date localSeconds] \ - / 3600 % 24}]} - } - I { # Hour AM/PM, with leading zero - append formatString %02d - append substituents \ - { [expr { ( ( ( [dict get $date localSeconds] \ - % 86400 ) \ - + 86400 \ - - 3600 ) \ - / 3600 ) \ - % 12 + 1 }] } - } - j { # Day of year (001-366) - append formatString %03d - append substituents { [dict get $date dayOfYear]} - } - J { # Julian Day Number - append formatString %07ld - append substituents { [dict get $date julianDay]} - } - k { # Hour (0-23), no leading zero - append formatString %2d - append substituents \ - { [expr { [dict get $date localSeconds] - / 3600 - % 24 }]} - } - l { # Hour (12-11), no leading zero - append formatString %2d - append substituents \ - { [expr { ( ( ( [dict get $date localSeconds] - % 86400 ) - + 86400 - - 3600 ) - / 3600 ) - % 12 + 1 }]} - } - m { # Month number, leading zero - append formatString %02d - append substituents { [dict get $date month]} - } - M { # Minute of the hour, leading zero - append formatString %02d - append substituents \ - { [expr { [dict get $date localSeconds] - / 60 - % 60 }]} - } - n { # A literal newline - append formatString \n - } - N { # Month number, no leading zero - append formatString %2d - append substituents { [dict get $date month]} - } - O { # A format group in the locale's - # alternative numerals - set state percentO - if {!$didLocaleNumerals} { - append preFormatCode \ - [list set localeNumerals \ - [mc LOCALE_NUMERALS]] \n - set didLocaleNumerals 1 - } - } - p { # Localized 'AM' or 'PM' indicator - # converted to uppercase - append formatString %s - append preFormatCode \ - [list set AM [string toupper [mc AM]]] \n \ - [list set PM [string toupper [mc PM]]] \n - append substituents \ - { [expr {(([dict get $date localSeconds] - % 86400) < 43200) ? - $AM : $PM}]} - } - P { # Localized 'AM' or 'PM' indicator - append formatString %s - append preFormatCode \ - [list set am [mc AM]] \n \ - [list set pm [mc PM]] \n - append substituents \ - { [expr {(([dict get $date localSeconds] - % 86400) < 43200) ? - $am : $pm}]} - - } - Q { # Hi, Jeff! - append formatString %s - append substituents { [FormatStarDate $date]} - } - s { # Seconds from the Posix Epoch - append formatString %s - append substituents { [dict get $date seconds]} - } - S { # Second of the minute, with - # leading zero - append formatString %02d - append substituents \ - { [expr { [dict get $date localSeconds] - % 60 }]} - } - t { # A literal tab character - append formatString \t - } - u { # Day of the week (1-Monday, 7-Sunday) - append formatString %1d - append substituents { [dict get $date dayOfWeek]} - } - U { # Week of the year (00-53). The - # first Sunday of the year is the - # first day of week 01 - append formatString %02d - append preFormatCode { - set dow [dict get $date dayOfWeek] - if { $dow == 7 } { - set dow 0 - } - incr dow - set UweekNumber \ - [expr { ( [dict get $date dayOfYear] - - $dow + 7 ) - / 7 }] - } - append substituents { $UweekNumber} - } - V { # The ISO8601 week number - append formatString %02d - append substituents { [dict get $date iso8601Week]} - } - w { # Day of the week (0-Sunday, - # 6-Saturday) - append formatString %1d - append substituents \ - { [expr { [dict get $date dayOfWeek] % 7 }]} - } - W { # Week of the year (00-53). The first - # Monday of the year is the first day - # of week 01. - append preFormatCode { - set WweekNumber \ - [expr { ( [dict get $date dayOfYear] - - [dict get $date dayOfWeek] - + 7 ) - / 7 }] - } - append formatString %02d - append substituents { $WweekNumber} - } - y { # The two-digit year of the century - append formatString %02d - append substituents \ - { [expr { [dict get $date year] % 100 }]} - } - Y { # The four-digit year - append formatString %04d - append substituents { [dict get $date year]} - } - z { # The time zone as hours and minutes - # east (+) or west (-) of Greenwich - append formatString %s - append substituents { [FormatNumericTimeZone \ - [dict get $date tzOffset]]} - } - Z { # The name of the time zone - append formatString %s - append substituents { [dict get $date tzName]} - } - % { # A literal percent character - append formatString %% - } - default { # An unknown escape sequence - append formatString %% $char - } - } - } - percentE { # Character following %E - set state {} - switch -exact -- $char { - E { - append formatString %s - append substituents { } \ - [string map \ - [list @BCE@ [list [mc BCE]] \ - @CE@ [list [mc CE]]] \ - {[dict get {BCE @BCE@ CE @CE@} \ - [dict get $date era]]}] - } - C { # Locale-dependent era - append formatString %s - append substituents { [dict get $date localeEra]} - } - y { # Locale-dependent year of the era - append preFormatCode { - set y [dict get $date localeYear] - if { $y >= 0 && $y < 100 } { - set Eyear [lindex $localeNumerals $y] - } else { - set Eyear $y - } - } - append formatString %s - append substituents { $Eyear} - } - default { # Unknown %E format group - append formatString %%E $char - } - } - } - percentO { # Character following %O - set state {} - switch -exact -- $char { - d - e { # Day of the month in alternative - # numerals - append formatString %s - append substituents \ - { [lindex $localeNumerals \ - [dict get $date dayOfMonth]]} - } - H - k { # Hour of the day in alternative - # numerals - append formatString %s - append substituents \ - { [lindex $localeNumerals \ - [expr { [dict get $date localSeconds] - / 3600 - % 24 }]]} - } - I - l { # Hour (12-11) AM/PM in alternative - # numerals - append formatString %s - append substituents \ - { [lindex $localeNumerals \ - [expr { ( ( ( [dict get $date localSeconds] - % 86400 ) - + 86400 - - 3600 ) - / 3600 ) - % 12 + 1 }]]} - } - m { # Month number in alternative numerals - append formatString %s - append substituents \ - { [lindex $localeNumerals [dict get $date month]]} - } - M { # Minute of the hour in alternative - # numerals - append formatString %s - append substituents \ - { [lindex $localeNumerals \ - [expr { [dict get $date localSeconds] - / 60 - % 60 }]]} - } - S { # Second of the minute in alternative - # numerals - append formatString %s - append substituents \ - { [lindex $localeNumerals \ - [expr { [dict get $date localSeconds] - % 60 }]]} - } - u { # Day of the week (Monday=1,Sunday=7) - # in alternative numerals - append formatString %s - append substituents \ - { [lindex $localeNumerals \ - [dict get $date dayOfWeek]]} - } - w { # Day of the week (Sunday=0,Saturday=6) - # in alternative numerals - append formatString %s - append substituents \ - { [lindex $localeNumerals \ - [expr { [dict get $date dayOfWeek] % 7 }]]} - } - y { # Year of the century in alternative - # numerals - append formatString %s - append substituents \ - { [lindex $localeNumerals \ - [expr { [dict get $date year] % 100 }]]} - } - default { # Unknown format group - append formatString %%O $char - } - } - } - } - } - - # Clean up any improperly terminated groups - - switch -exact -- $state { - percent { - append formatString %% - } - percentE { - append retval %%E - } - percentO { - append retval %%O - } - } - - proc $procName {clockval timezone} " - $preFormatCode - return \[::format [list $formatString] $substituents\] - " - - # puts [list $procName [info args $procName] [info body $procName]] - - return $procName -} - -#---------------------------------------------------------------------- -# -# clock scan -- -# -# Inputs a count of seconds since the Posix Epoch as a time of day. -# -# The 'clock scan' command scans times of day on input. Refer to the user -# documentation to see what it does. +# Returns the dictionary object as whole catalog of the package/locale. # -#---------------------------------------------------------------------- - -proc ::tcl::clock::scan { args } { - - set format {} - - # Check the count of args - - if { [llength $args] < 1 || [llength $args] % 2 != 1 } { - set cmdName "clock scan" - return -code error \ - -errorcode [list CLOCK wrongNumArgs] \ - "wrong \# args: should be\ - \"$cmdName string\ - ?-base seconds?\ - ?-format string? ?-gmt boolean?\ - ?-locale LOCALE? ?-timezone ZONE?\"" +proc ::tcl::clock::mcget {loc} { + variable mcMergedCat + switch -- $loc system { + set loc [GetSystemLocale] + } current { + set loc [mclocale] } - - # Set defaults - - set base [clock seconds] - set string [lindex $args 0] - set format {} - set gmt 0 - set locale c - set timezone [GetSystemTimeZone] - - # Pick up command line options. - - foreach { flag value } [lreplace $args 0 0] { - switch -exact -- $flag { - -b - -ba - -bas - -base { - set base $value - } - -f - -fo - -for - -form - -forma - -format { - set saw(-format) {} - set format $value - } - -g - -gm - -gmt { - set saw(-gmt) {} - set gmt $value - } - -l - -lo - -loc - -loca - -local - -locale { - set saw(-locale) {} - set locale [string tolower $value] - } - -t - -ti - -tim - -time - -timez - -timezo - -timezon - -timezone { - set saw(-timezone) {} - set timezone $value - } - default { - return -code error \ - -errorcode [list CLOCK badOption $flag] \ - "bad option \"$flag\":\ - must be -base, -format, -gmt, -locale, or -timezone" - } - } - } - - # Check options for validity - - if { [info exists saw(-gmt)] && [info exists saw(-timezone)] } { - return -code error \ - -errorcode [list CLOCK gmtWithTimezone] \ - "cannot use -gmt and -timezone in same call" - } - if { [catch { expr { wide($base) } } result] } { - return -code error "expected integer but got \"$base\"" - } - if { ![string is boolean -strict $gmt] } { - return -code error "expected boolean value but got \"$gmt\"" - } elseif { $gmt } { - set timezone :GMT + if {$loc ne {}} { + set loc [string tolower $loc] } - if { ![info exists saw(-format)] } { - # Perhaps someday we'll localize the legacy code. Right now, it's not - # localized. - if { [info exists saw(-locale)] } { - return -code error \ - -errorcode [list CLOCK flagWithLegacyFormat] \ - "legacy \[clock scan\] does not support -locale" - - } - return [FreeScan $string $base $timezone $locale] + # try to retrieve now if already available: + if {[dict exists $mcMergedCat $loc]} { + return [dict get $mcMergedCat $loc] } - # Change locale if a fresh locale has been given on the command line. - - EnterLocale $locale - - try { - # Map away the locale-dependent composite format groups - - set scanner [ParseClockScanFormat $format $locale] - return [$scanner $string $base $timezone] - } trap CLOCK {result opts} { - # Conceal location of generation of expected errors - dict unset opts -errorinfo - return -options $opts $result - } + # get locales list for given locale (de_de -> {de_de de {}}) + variable mcLocales + if {[dict exists $mcLocales $loc]} { + set loclist [dict get $mcLocales $loc] + } else { + # save current locale: + set prevloc [mclocale] + # lazy load catalog on demand (set it will load the catalog) + mcpackagelocale set $loc + set loclist [msgcat::mcutil::getpreferences $loc] + dict set $mcLocales $loc $loclist + # restore: + if {$prevloc ne $loc} { + mcpackagelocale set $prevloc + } + } + # get whole catalog: + mcMerge $loclist } -#---------------------------------------------------------------------- +# mcMerge -- # -# FreeScan -- +# Merge message catalog dictionaries to one dictionary. # -# Scans a time in free format -# -# Parameters: -# string - String containing the time to scan -# base - Base time, expressed in seconds from the Epoch -# timezone - Default time zone in which the time will be expressed -# locale - (Unused) Name of the locale where the time will be scanned. +# Arguments: +# locales List of locales to merge. # # Results: -# Returns the date and time extracted from the string in seconds from -# the epoch -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::FreeScan { string base timezone locale } { - - variable TZData - - # Get the data for time changes in the given zone - - try { - SetupTimeZone $timezone - } on error {retval opts} { - dict unset opts -errorinfo - return -options $opts $retval - } - - # Extract year, month and day from the base time for the parser to use as - # defaults - - set date [GetDateFields $base $TZData($timezone) 2361222] - dict set date secondOfDay [expr { - [dict get $date localSeconds] % 86400 - }] - - # Parse the date. The parser will return a list comprising date, time, - # time zone, relative month/day/seconds, relative weekday, ordinal month. - - try { - set scanned [Oldscan $string \ - [dict get $date year] \ - [dict get $date month] \ - [dict get $date dayOfMonth]] - lassign $scanned \ - parseDate parseTime parseZone parseRel \ - parseWeekday parseOrdinalMonth - } on error message { - return -code error \ - "unable to convert date-time string \"$string\": $message" - } - - # If the caller supplied a date in the string, update the 'date' dict with - # the value. If the caller didn't specify a time with the date, default to - # midnight. - - if { [llength $parseDate] > 0 } { - lassign $parseDate y m d - if { $y < 100 } { - if { $y >= 39 } { - incr y 1900 - } else { - incr y 2000 - } - } - dict set date era CE - dict set date year $y - dict set date month $m - dict set date dayOfMonth $d - if { $parseTime eq {} } { - set parseTime 0 - } - } - - # If the caller supplied a time zone in the string, it comes back as a - # two-element list; the first element is the number of minutes east of - # Greenwich, and the second is a Daylight Saving Time indicator (1 == yes, - # 0 == no, -1 == unknown). We make it into a time zone indicator of - # +-hhmm. - - if { [llength $parseZone] > 0 } { - lassign $parseZone minEast dstFlag - set timezone [FormatNumericTimeZone \ - [expr { 60 * $minEast + 3600 * $dstFlag }]] - SetupTimeZone $timezone - } - dict set date tzName $timezone - - # Assemble date, time, zone into seconds-from-epoch - - set date [GetJulianDayFromEraYearMonthDay $date[set date {}] 2361222] - if { $parseTime ne {} } { - dict set date secondOfDay $parseTime - } elseif { [llength $parseWeekday] != 0 - || [llength $parseOrdinalMonth] != 0 - || ( [llength $parseRel] != 0 - && ( [lindex $parseRel 0] != 0 - || [lindex $parseRel 1] != 0 ) ) } { - dict set date secondOfDay 0 - } - - dict set date localSeconds [expr { - -210866803200 - + ( 86400 * wide([dict get $date julianDay]) ) - + [dict get $date secondOfDay] - }] - dict set date tzName $timezone - set date [ConvertLocalToUTC $date[set date {}] $TZData($timezone) 2361222] - set seconds [dict get $date seconds] - - # Do relative times - - if { [llength $parseRel] > 0 } { - lassign $parseRel relMonth relDay relSecond - set seconds [add $seconds \ - $relMonth months $relDay days $relSecond seconds \ - -timezone $timezone -locale $locale] - } - - # Do relative weekday - - if { [llength $parseWeekday] > 0 } { - lassign $parseWeekday dayOrdinal dayOfWeek - set date2 [GetDateFields $seconds $TZData($timezone) 2361222] - dict set date2 era CE - set jdwkday [WeekdayOnOrBefore $dayOfWeek [expr { - [dict get $date2 julianDay] + 6 - }]] - incr jdwkday [expr { 7 * $dayOrdinal }] - if { $dayOrdinal > 0 } { - incr jdwkday -7 - } - dict set date2 secondOfDay \ - [expr { [dict get $date2 localSeconds] % 86400 }] - dict set date2 julianDay $jdwkday - dict set date2 localSeconds [expr { - -210866803200 - + ( 86400 * wide([dict get $date2 julianDay]) ) - + [dict get $date secondOfDay] - }] - dict set date2 tzName $timezone - set date2 [ConvertLocalToUTC $date2[set date2 {}] $TZData($timezone) \ - 2361222] - set seconds [dict get $date2 seconds] - - } - - # Do relative month - - if { [llength $parseOrdinalMonth] > 0 } { - lassign $parseOrdinalMonth monthOrdinal monthNumber - if { $monthOrdinal > 0 } { - set monthDiff [expr { $monthNumber - [dict get $date month] }] - if { $monthDiff <= 0 } { - incr monthDiff 12 - } - incr monthOrdinal -1 +# Returns the (weak pointer) to merged dictionary of message catalog. +# +proc ::tcl::clock::mcMerge {locales} { + variable mcMergedCat + if {[dict exists $mcMergedCat [set loc [lindex $locales 0]]]} { + return [dict get $mcMergedCat $loc] + } + # package msgcat currently does not provide possibility to get whole catalog: + upvar ::msgcat::Msgs Msgs + set ns ::tcl::clock + # Merge sequential locales (in reverse order, e. g. {} -> en -> en_en): + if {[llength $locales] > 1} { + set mrgcat [mcMerge [lrange $locales 1 end]] + if {[dict exists $Msgs $ns $loc]} { + set mrgcat [dict merge $mrgcat [dict get $Msgs $ns $loc]] + dict set mrgcat L $loc } else { - set monthDiff [expr { [dict get $date month] - $monthNumber }] - if { $monthDiff >= 0 } { - incr monthDiff -12 - } - incr monthOrdinal - } - set seconds [add $seconds $monthOrdinal years $monthDiff months \ - -timezone $timezone -locale $locale] - } - - return $seconds -} - - -#---------------------------------------------------------------------- -# -# ParseClockScanFormat -- -# -# Parses a format string given to [clock scan -format] -# -# Parameters: -# formatString - The format being parsed -# locale - The current locale -# -# Results: -# Constructs and returns a procedure that accepts the string being -# scanned, the base time, and the time zone. The procedure will either -# return the scanned time or else throw an error that should be rethrown -# to the caller of [clock scan] -# -# Side effects: -# The given procedure is defined in the ::tcl::clock namespace. Scan -# procedures are not deleted once installed. -# -# Why do we parse dates by defining a procedure to parse them? The reason is -# that by doing so, we have one convenient place to cache all the information: -# the regular expressions that match the patterns (which will be compiled), -# the code that assembles the date information, everything lands in one place. -# In this way, when a given format is reused at run time, all the information -# of how to apply it is available in a single place. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::ParseClockScanFormat {formatString locale} { - # Check whether the format has been parsed previously, and return the - # existing recognizer if it has. - - set procName scanproc'$formatString'$locale - set procName [namespace current]::[string map {: {\:} \\ {\\}} $procName] - if { [namespace which $procName] != {} } { - return $procName - } - - variable DateParseActions - variable TimeParseActions - - # Localize the %x, %X, etc. groups - - set formatString [LocalizeFormat $locale $formatString] - - # Condense whitespace - - regsub -all {[[:space:]]+} $formatString { } formatString - - # Walk through the groups of the format string. In this loop, we - # accumulate: - # - a regular expression that matches the string, - # - the count of capturing brackets in the regexp - # - a set of code that post-processes the fields captured by the regexp, - # - a dictionary whose keys are the names of fields that are present - # in the format string. - - set re {^[[:space:]]*} - set captureCount 0 - set postcode {} - set fieldSet [dict create] - set fieldCount 0 - set postSep {} - set state {} - - foreach c [split $formatString {}] { - switch -exact -- $state { - {} { - if { $c eq "%" } { - set state % - } elseif { $c eq " " } { - append re {[[:space:]]+} - } else { - if { ! [string is alnum $c] } { - append re "\\" - } - append re $c - } - } - % { - set state {} - switch -exact -- $c { - % { - append re % - } - { } { - append re "\[\[:space:\]\]*" - } - a - A { # Day of week, in words - set l {} - foreach \ - i {7 1 2 3 4 5 6} \ - abr [mc DAYS_OF_WEEK_ABBREV] \ - full [mc DAYS_OF_WEEK_FULL] { - dict set l [string tolower $abr] $i - dict set l [string tolower $full] $i - incr i - } - lassign [UniquePrefixRegexp $l] regex lookup - append re ( $regex ) - dict set fieldSet dayOfWeek [incr fieldCount] - append postcode "dict set date dayOfWeek \[" \ - "dict get " [list $lookup] " " \ - \[ {string tolower $field} [incr captureCount] \] \ - "\]\n" - } - b - B - h { # Name of month - set i 0 - set l {} - foreach \ - abr [mc MONTHS_ABBREV] \ - full [mc MONTHS_FULL] { - incr i - dict set l [string tolower $abr] $i - dict set l [string tolower $full] $i - } - lassign [UniquePrefixRegexp $l] regex lookup - append re ( $regex ) - dict set fieldSet month [incr fieldCount] - append postcode "dict set date month \[" \ - "dict get " [list $lookup] \ - " " \[ {string tolower $field} \ - [incr captureCount] \] \ - "\]\n" - } - C { # Gregorian century - append re \\s*(\\d\\d?) - dict set fieldSet century [incr fieldCount] - append postcode "dict set date century \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - d - e { # Day of month - append re \\s*(\\d\\d?) - dict set fieldSet dayOfMonth [incr fieldCount] - append postcode "dict set date dayOfMonth \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - E { # Prefix for locale-specific codes - set state %E - } - g { # ISO8601 2-digit year - append re \\s*(\\d\\d) - dict set fieldSet iso8601YearOfCentury \ - [incr fieldCount] - append postcode \ - "dict set date iso8601YearOfCentury \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - G { # ISO8601 4-digit year - append re \\s*(\\d\\d)(\\d\\d) - dict set fieldSet iso8601Century [incr fieldCount] - dict set fieldSet iso8601YearOfCentury \ - [incr fieldCount] - append postcode \ - "dict set date iso8601Century \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" \ - "dict set date iso8601YearOfCentury \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - H - k { # Hour of day - append re \\s*(\\d\\d?) - dict set fieldSet hour [incr fieldCount] - append postcode "dict set date hour \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - I - l { # Hour, AM/PM - append re \\s*(\\d\\d?) - dict set fieldSet hourAMPM [incr fieldCount] - append postcode "dict set date hourAMPM \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - j { # Day of year - append re \\s*(\\d\\d?\\d?) - dict set fieldSet dayOfYear [incr fieldCount] - append postcode "dict set date dayOfYear \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - J { # Julian Day Number - append re \\s*(\\d+) - dict set fieldSet julianDay [incr fieldCount] - append postcode "dict set date julianDay \[" \ - "::scan \$field" [incr captureCount] " %ld" \ - "\]\n" - } - m - N { # Month number - append re \\s*(\\d\\d?) - dict set fieldSet month [incr fieldCount] - append postcode "dict set date month \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - M { # Minute - append re \\s*(\\d\\d?) - dict set fieldSet minute [incr fieldCount] - append postcode "dict set date minute \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - n { # Literal newline - append re \\n - } - O { # Prefix for locale numerics - set state %O - } - p - P { # AM/PM indicator - set l [list [string tolower [mc AM]] 0 \ - [string tolower [mc PM]] 1] - lassign [UniquePrefixRegexp $l] regex lookup - append re ( $regex ) - dict set fieldSet amPmIndicator [incr fieldCount] - append postcode "dict set date amPmIndicator \[" \ - "dict get " [list $lookup] " \[string tolower " \ - "\$field" \ - [incr captureCount] \ - "\]\]\n" - } - Q { # Hi, Jeff! - append re {Stardate\s+([-+]?\d+)(\d\d\d)[.](\d)} - incr captureCount - dict set fieldSet seconds [incr fieldCount] - append postcode {dict set date seconds } \[ \ - {ParseStarDate $field} [incr captureCount] \ - { $field} [incr captureCount] \ - { $field} [incr captureCount] \ - \] \n - } - s { # Seconds from Posix Epoch - # This next case is insanely difficult, because it's - # problematic to determine whether the field is - # actually within the range of a wide integer. - append re {\s*([-+]?\d+)} - dict set fieldSet seconds [incr fieldCount] - append postcode {dict set date seconds } \[ \ - {ScanWide $field} [incr captureCount] \] \n - } - S { # Second - append re \\s*(\\d\\d?) - dict set fieldSet second [incr fieldCount] - append postcode "dict set date second \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - t { # Literal tab character - append re \\t - } - u - w { # Day number within week, 0 or 7 == Sun - # 1=Mon, 6=Sat - append re \\s*(\\d) - dict set fieldSet dayOfWeek [incr fieldCount] - append postcode {::scan $field} [incr captureCount] \ - { %d dow} \n \ - { - if { $dow == 0 } { - set dow 7 - } elseif { $dow > 7 } { - return -code error \ - -errorcode [list CLOCK badDayOfWeek] \ - "day of week is greater than 7" - } - dict set date dayOfWeek $dow - } - } - U { # Week of year. The first Sunday of - # the year is the first day of week - # 01. No scan rule uses this group. - append re \\s*\\d\\d? - } - V { # Week of ISO8601 year - - append re \\s*(\\d\\d?) - dict set fieldSet iso8601Week [incr fieldCount] - append postcode "dict set date iso8601Week \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - W { # Week of the year (00-53). The first - # Monday of the year is the first day - # of week 01. No scan rule uses this - # group. - append re \\s*\\d\\d? - } - y { # Two-digit Gregorian year - append re \\s*(\\d\\d?) - dict set fieldSet yearOfCentury [incr fieldCount] - append postcode "dict set date yearOfCentury \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - Y { # 4-digit Gregorian year - append re \\s*(\\d\\d)(\\d\\d) - dict set fieldSet century [incr fieldCount] - dict set fieldSet yearOfCentury [incr fieldCount] - append postcode \ - "dict set date century \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" \ - "dict set date yearOfCentury \[" \ - "::scan \$field" [incr captureCount] " %d" \ - "\]\n" - } - z - Z { # Time zone name - append re {(?:([-+]\d\d(?::?\d\d(?::?\d\d)?)?)|([[:alnum:]]{1,4}))} - dict set fieldSet tzName [incr fieldCount] - append postcode \ - {if } \{ { $field} [incr captureCount] \ - { ne "" } \} { } \{ \n \ - {dict set date tzName $field} \ - $captureCount \n \ - \} { else } \{ \n \ - {dict set date tzName } \[ \ - {ConvertLegacyTimeZone $field} \ - [incr captureCount] \] \n \ - \} \n \ - } - % { # Literal percent character - append re % - } - default { - append re % - if { ! [string is alnum $c] } { - append re \\ - } - append re $c - } - } - } - %E { - switch -exact -- $c { - C { # Locale-dependent era - set d {} - foreach triple [mc LOCALE_ERAS] { - lassign $triple t symbol year - dict set d [string tolower $symbol] $year - } - lassign [UniquePrefixRegexp $d] regex lookup - append re (?: $regex ) - } - E { - set l {} - dict set l [string tolower [mc BCE]] BCE - dict set l [string tolower [mc CE]] CE - dict set l b.c.e. BCE - dict set l c.e. CE - dict set l b.c. BCE - dict set l a.d. CE - lassign [UniquePrefixRegexp $l] regex lookup - append re ( $regex ) - dict set fieldSet era [incr fieldCount] - append postcode "dict set date era \["\ - "dict get " [list $lookup] \ - { } \[ {string tolower $field} \ - [incr captureCount] \] \ - "\]\n" - } - y { # Locale-dependent year of the era - lassign [LocaleNumeralMatcher $locale] regex lookup - append re $regex - incr captureCount - } - default { - append re %E - if { ! [string is alnum $c] } { - append re \\ - } - append re $c - } - } - set state {} - } - %O { - switch -exact -- $c { - d - e { - lassign [LocaleNumeralMatcher $locale] regex lookup - append re $regex - dict set fieldSet dayOfMonth [incr fieldCount] - append postcode "dict set date dayOfMonth \[" \ - "dict get " [list $lookup] " \$field" \ - [incr captureCount] \ - "\]\n" - } - H - k { - lassign [LocaleNumeralMatcher $locale] regex lookup - append re $regex - dict set fieldSet hour [incr fieldCount] - append postcode "dict set date hour \[" \ - "dict get " [list $lookup] " \$field" \ - [incr captureCount] \ - "\]\n" - } - I - l { - lassign [LocaleNumeralMatcher $locale] regex lookup - append re $regex - dict set fieldSet hourAMPM [incr fieldCount] - append postcode "dict set date hourAMPM \[" \ - "dict get " [list $lookup] " \$field" \ - [incr captureCount] \ - "\]\n" - } - m { - lassign [LocaleNumeralMatcher $locale] regex lookup - append re $regex - dict set fieldSet month [incr fieldCount] - append postcode "dict set date month \[" \ - "dict get " [list $lookup] " \$field" \ - [incr captureCount] \ - "\]\n" - } - M { - lassign [LocaleNumeralMatcher $locale] regex lookup - append re $regex - dict set fieldSet minute [incr fieldCount] - append postcode "dict set date minute \[" \ - "dict get " [list $lookup] " \$field" \ - [incr captureCount] \ - "\]\n" - } - S { - lassign [LocaleNumeralMatcher $locale] regex lookup - append re $regex - dict set fieldSet second [incr fieldCount] - append postcode "dict set date second \[" \ - "dict get " [list $lookup] " \$field" \ - [incr captureCount] \ - "\]\n" - } - u - w { - lassign [LocaleNumeralMatcher $locale] regex lookup - append re $regex - dict set fieldSet dayOfWeek [incr fieldCount] - append postcode "set dow \[dict get " [list $lookup] \ - { $field} [incr captureCount] \] \n \ - { - if { $dow == 0 } { - set dow 7 - } elseif { $dow > 7 } { - return -code error \ - -errorcode [list CLOCK badDayOfWeek] \ - "day of week is greater than 7" - } - dict set date dayOfWeek $dow - } - } - y { - lassign [LocaleNumeralMatcher $locale] regex lookup - append re $regex - dict set fieldSet yearOfCentury [incr fieldCount] - append postcode {dict set date yearOfCentury } \[ \ - {dict get } [list $lookup] { $field} \ - [incr captureCount] \] \n - } - default { - append re %O - if { ! [string is alnum $c] } { - append re \\ - } - append re $c - } - } - set state {} - } + # be sure a duplicate is created, don't overwrite {} (common) locale: + set mrgcat [dict merge $mrgcat [dict create L $loc]] } - } - - # Clean up any unfinished format groups - - append re $state \\s*\$ - - # Build the procedure - - set procBody {} - append procBody "variable ::tcl::clock::TZData" \n - append procBody "if \{ !\[ regexp -nocase [list $re] \$string ->" - for { set i 1 } { $i <= $captureCount } { incr i } { - append procBody " " field $i - } - append procBody "\] \} \{" \n - append procBody { - return -code error -errorcode [list CLOCK badInputString] \ - {input string does not match supplied format} - } - append procBody \}\n - append procBody "set date \[dict create\]" \n - append procBody {dict set date tzName $timeZone} \n - append procBody $postcode - append procBody [list set changeover [mc GREGORIAN_CHANGE_DATE]] \n - - # Set up the time zone before doing anything with a default base date - # that might need a timezone to interpret it. - - if { ![dict exists $fieldSet seconds] - && ![dict exists $fieldSet starDate] } { - if { [dict exists $fieldSet tzName] } { - append procBody { - set timeZone [dict get $date tzName] - } - } - append procBody { - ::tcl::clock::SetupTimeZone $timeZone - } - } - - # Add code that gets Julian Day Number from the fields. - - append procBody [MakeParseCodeFromFields $fieldSet $DateParseActions] - - # Get time of day - - append procBody [MakeParseCodeFromFields $fieldSet $TimeParseActions] - - # Assemble seconds from the Julian day and second of the day. - # Convert to local time unless epoch seconds or stardate are - # being processed - they're always absolute - - if { ![dict exists $fieldSet seconds] - && ![dict exists $fieldSet starDate] } { - append procBody { - if { [dict get $date julianDay] > 5373484 } { - return -code error -errorcode [list CLOCK dateTooLarge] \ - "requested date too large to represent" - } - dict set date localSeconds [expr { - -210866803200 - + ( 86400 * wide([dict get $date julianDay]) ) - + [dict get $date secondOfDay] - }] - } - - # Finally, convert the date to local time - - append procBody { - set date [::tcl::clock::ConvertLocalToUTC $date[set date {}] \ - $TZData($timeZone) $changeover] - } - } - - # Return result - - append procBody {return [dict get $date seconds]} \n - - proc $procName { string baseTime timeZone } $procBody - - # puts [list proc $procName [list string baseTime timeZone] $procBody] - - return $procName -} - -#---------------------------------------------------------------------- -# -# LocaleNumeralMatcher -- -# -# Composes a regexp that captures the numerals in the given locale, and -# a dictionary to map them to conventional numerals. -# -# Parameters: -# locale - Name of the current locale -# -# Results: -# Returns a two-element list comprising the regexp and the dictionary. -# -# Side effects: -# Caches the result. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::LocaleNumeralMatcher {l} { - variable LocaleNumeralCache - - if { ![dict exists $LocaleNumeralCache $l] } { - set d {} - set i 0 - set sep \( - foreach n [mc LOCALE_NUMERALS] { - dict set d $n $i - regsub -all {[^[:alnum:]]} $n \\\\& subex - append re $sep $subex - set sep | - incr i + } else { + if {[dict exists $Msgs $ns $loc]} { + set mrgcat [dict get $Msgs $ns $loc] + dict set mrgcat L $loc + } else { + # be sure a duplicate is created, don't overwrite {} (common) locale: + set mrgcat [dict create L $loc] } - append re \) - dict set LocaleNumeralCache $l [list $re $d] } - return [dict get $LocaleNumeralCache $l] + dict set mcMergedCat $loc $mrgcat + # return smart reference (shared dict as object with exact one ref-counter) + return $mrgcat } - - #---------------------------------------------------------------------- # -# UniquePrefixRegexp -- +# GetSystemLocale -- # -# Composes a regexp that performs unique-prefix matching. The RE -# matches one of a supplied set of strings, or any unique prefix -# thereof. +# Determines the system locale, which corresponds to "system" +# keyword for locale parameter of 'clock' command. # # Parameters: -# data - List of alternating match-strings and values. -# Match-strings with distinct values are considered -# distinct. -# -# Results: -# Returns a two-element list. The first is a regexp that matches any -# unique prefix of any of the strings. The second is a dictionary whose -# keys are match values from the regexp and whose values are the -# corresponding values from 'data'. -# -# Side effects: # None. # -#---------------------------------------------------------------------- - -proc ::tcl::clock::UniquePrefixRegexp { data } { - # The 'successors' dictionary will contain, for each string that is a - # prefix of any key, all characters that may follow that prefix. The - # 'prefixMapping' dictionary will have keys that are prefixes of keys and - # values that correspond to the keys. - - set prefixMapping [dict create] - set successors [dict create {} {}] - - # Walk the key-value pairs - - foreach { key value } $data { - # Construct all prefixes of the key; - - set prefix {} - foreach char [split $key {}] { - set oldPrefix $prefix - dict set successors $oldPrefix $char {} - append prefix $char - - # Put the prefixes in the 'prefixMapping' and 'successors' - # dictionaries - - dict lappend prefixMapping $prefix $value - if { ![dict exists $successors $prefix] } { - dict set successors $prefix {} - } - } - } - - # Identify those prefixes that designate unique values, and those that are - # the full keys - - set uniquePrefixMapping {} - dict for { key valueList } $prefixMapping { - if { [llength $valueList] == 1 } { - dict set uniquePrefixMapping $key [lindex $valueList 0] - } - } - foreach { key value } $data { - dict set uniquePrefixMapping $key $value - } - - # Construct the re. - - return [list \ - [MakeUniquePrefixRegexp $successors $uniquePrefixMapping {}] \ - $uniquePrefixMapping] -} - -#---------------------------------------------------------------------- -# -# MakeUniquePrefixRegexp -- -# -# Service procedure for 'UniquePrefixRegexp' that constructs a regular -# expresison that matches the unique prefixes. -# -# Parameters: -# successors - Dictionary whose keys are all prefixes -# of keys passed to 'UniquePrefixRegexp' and whose -# values are dictionaries whose keys are the characters -# that may follow those prefixes. -# uniquePrefixMapping - Dictionary whose keys are the unique -# prefixes and whose values are not examined. -# prefixString - Current prefix being processed. -# # Results: -# Returns a constructed regular expression that matches the set of -# unique prefixes beginning with the 'prefixString'. +# Returns the system locale. # # Side effects: # None. # #---------------------------------------------------------------------- -proc ::tcl::clock::MakeUniquePrefixRegexp { successors - uniquePrefixMapping - prefixString } { +proc ::tcl::clock::GetSystemLocale {} { + if { $::tcl_platform(platform) ne {windows} } { + # On a non-windows platform, the 'system' locale is the same as + # the 'current' locale - # Get the characters that may follow the current prefix string - - set schars [lsort -ascii [dict keys [dict get $successors $prefixString]]] - if { [llength $schars] == 0 } { - return {} + return [mclocale] } - # If there is more than one successor character, or if the current prefix - # is a unique prefix, surround the generated re with non-capturing - # parentheses. + # On a windows platform, the 'system' locale is adapted from the + # 'current' locale by applying the date and time formats from the + # Control Panel. First, load the 'current' locale if it's not yet + # loaded - set re {} - if { - [dict exists $uniquePrefixMapping $prefixString] - || [llength $schars] > 1 - } then { - append re "(?:" - } - - # Generate a regexp that matches the successors. - - set sep "" - foreach { c } $schars { - set nextPrefix $prefixString$c - regsub -all {[^[:alnum:]]} $c \\\\& rechar - append re $sep $rechar \ - [MakeUniquePrefixRegexp \ - $successors $uniquePrefixMapping $nextPrefix] - set sep | - } + mcpackagelocale set [mclocale] - # If the current prefix is a unique prefix, make all following text - # optional. Otherwise, if there is more than one successor character, - # close the non-capturing parentheses. + # Make a new locale string for the system locale, and get the + # Control Panel information - if { [dict exists $uniquePrefixMapping $prefixString] } { - append re ")?" - } elseif { [llength $schars] > 1 } { - append re ")" + set locale [mclocale]_windows + if { ! [mcpackagelocale present $locale] } { + LoadWindowsDateTimeFormats $locale } - return $re + return $locale } #---------------------------------------------------------------------- # -# MakeParseCodeFromFields -- +# EnterLocale -- # -# Composes Tcl code to extract the Julian Day Number from a dictionary -# containing date fields. +# Switch [mclocale] to a given locale if necessary # # Parameters: -# dateFields -- Dictionary whose keys are fields of the date, -# and whose values are the rightmost positions -# at which those fields appear. -# parseActions -- List of triples: field set, priority, and -# code to emit. Smaller priorities are better, and -# the list must be in ascending order by priority +# locale -- Desired locale # # Results: -# Returns a burst of code that extracts the day number from the given -# date. +# Returns the locale that was previously current. # # Side effects: -# None. +# Does [mclocale]. If necessary, loades the designated locale's files. # #---------------------------------------------------------------------- -proc ::tcl::clock::MakeParseCodeFromFields { dateFields parseActions } { - - set currPrio 999 - set currFieldPos [list] - set currCodeBurst { - error "in ::tcl::clock::MakeParseCodeFromFields: can't happen" - } - - foreach { fieldSet prio parseAction } $parseActions { - # If we've found an answer that's better than any that follow, quit - # now. - - if { $prio > $currPrio } { - break - } - - # Accumulate the field positions that are used in the current field - # grouping. - - set fieldPos [list] - set ok true - foreach field $fieldSet { - if { ! [dict exists $dateFields $field] } { - set ok 0 - break - } - lappend fieldPos [dict get $dateFields $field] - } - - # Quit if we don't have a complete set of fields - if { !$ok } { - continue - } - - # Determine whether the current answer is better than the last. - - set fPos [lsort -integer -decreasing $fieldPos] - - if { $prio == $currPrio } { - foreach currPos $currFieldPos newPos $fPos { - if { - ![string is integer $newPos] - || ![string is integer $currPos] - || $newPos > $currPos - } then { - break - } - if { $newPos < $currPos } { - set ok 0 - break - } - } - } - if { !$ok } { - continue - } - - # Remember the best possibility for extracting date information - - set currPrio $prio - set currFieldPos $fPos - set currCodeBurst $parseAction +proc ::tcl::clock::EnterLocale { locale } { + switch -- $locale system { + set locale [GetSystemLocale] + } current { + set locale [mclocale] } - - return $currCodeBurst + # Select the locale, eventually load it + mcpackagelocale set $locale + return $locale } #---------------------------------------------------------------------- # -# EnterLocale -- -# -# Switch [mclocale] to a given locale if necessary -# -# Parameters: -# locale -- Desired locale -# -# Results: -# Returns the locale that was previously current. +# _hasRegistry -- # -# Side effects: -# Does [mclocale]. If necessary, loads the designated locale's files. +# Helper that checks whether registry module is available (Windows only) +# and loads it on demand. # #---------------------------------------------------------------------- - -proc ::tcl::clock::EnterLocale { locale } { - if { $locale eq {system} } { - if { $::tcl_platform(platform) ne {windows} } { - # On a non-windows platform, the 'system' locale is the same as - # the 'current' locale - - set locale current - } else { - # On a windows platform, the 'system' locale is adapted from the - # 'current' locale by applying the date and time formats from the - # Control Panel. First, load the 'current' locale if it's not yet - # loaded - - mcpackagelocale set [mclocale] - - # Make a new locale string for the system locale, and get the - # Control Panel information - - set locale [mclocale]_windows - if { ! [mcpackagelocale present $locale] } { - LoadWindowsDateTimeFormats $locale - } +proc ::tcl::clock::_hasRegistry {} { + set res 0 + if { $::tcl_platform(platform) eq {windows} } { + if { [catch { package require registry 1.1 }] } { + # try to load registry directly from root (if uninstalled / development env): + if {[regexp {[/\\]library$} [info library]]} {catch { + load [lindex \ + [glob -tails -directory [file dirname [info nameofexecutable]] \ + tclreg*[expr {[::tcl::pkgconfig get debug] ? {g} : {}}].dll] 0 \ + ] registry + }} + } + if { [namespace which -command ::registry] ne "" } { + set res 1 } } - if { $locale eq {current}} { - set locale [mclocale] - } - # Eventually load the locale - mcpackagelocale set $locale + proc ::tcl::clock::_hasRegistry {} [list return $res] + return $res } #---------------------------------------------------------------------- @@ -2363,8 +713,7 @@ proc ::tcl::clock::EnterLocale { locale } { proc ::tcl::clock::LoadWindowsDateTimeFormats { locale } { # Bail out if we can't find the Registry - variable NoRegistry - if { [info exists NoRegistry] } return + if { ![_hasRegistry] } return if { ![catch { registry get "HKEY_CURRENT_USER\\Control Panel\\International" \ @@ -2475,6 +824,8 @@ proc ::tcl::clock::LoadWindowsDateTimeFormats { locale } { # locale -- Current [mclocale] locale, supplied to avoid # an extra call # format -- Format supplied to [clock scan] or [clock format] +# mcd -- Message catalog dictionary for current locale (read-only, +# don't store it to avoid shared references). # # Results: # Returns the string with locale-dependent composite format groups @@ -2485,485 +836,51 @@ proc ::tcl::clock::LoadWindowsDateTimeFormats { locale } { # #---------------------------------------------------------------------- -proc ::tcl::clock::LocalizeFormat { locale format } { +proc ::tcl::clock::LocalizeFormat { locale format mcd } { + variable LocFmtMap - # message catalog key to cache this format - set key FORMAT_$format - - if { [::msgcat::mcexists -exactlocale -exactnamespace $key] } { - return [mc $key] - } - # Handle locale-dependent format groups by mapping them out of the format - # string. Note that the order of the [string map] operations is - # significant because later formats can refer to later ones; for example - # %c can refer to %X, which in turn can refer to %T. - - set list { - %% %% - %D %m/%d/%Y - %+ {%a %b %e %H:%M:%S %Z %Y} - } - lappend list %EY [string map $list [mc LOCALE_YEAR_FORMAT]] - lappend list %T [string map $list [mc TIME_FORMAT_24_SECS]] - lappend list %R [string map $list [mc TIME_FORMAT_24]] - lappend list %r [string map $list [mc TIME_FORMAT_12]] - lappend list %X [string map $list [mc TIME_FORMAT]] - lappend list %EX [string map $list [mc LOCALE_TIME_FORMAT]] - lappend list %x [string map $list [mc DATE_FORMAT]] - lappend list %Ex [string map $list [mc LOCALE_DATE_FORMAT]] - lappend list %c [string map $list [mc DATE_TIME_FORMAT]] - lappend list %Ec [string map $list [mc LOCALE_DATE_TIME_FORMAT]] - set format [string map $list $format] - - ::msgcat::mcset $locale $key $format - return $format -} - -#---------------------------------------------------------------------- -# -# FormatNumericTimeZone -- -# -# Formats a time zone as +hhmmss -# -# Parameters: -# z - Time zone in seconds east of Greenwich -# -# Results: -# Returns the time zone formatted in a numeric form -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::FormatNumericTimeZone { z } { - if { $z < 0 } { - set z [expr { - $z }] - set retval - + # get map list cached or build it: + if {[dict exists $LocFmtMap $locale]} { + set mlst [dict get $LocFmtMap $locale] } else { - set retval + - } - append retval [::format %02d [expr { $z / 3600 }]] - set z [expr { $z % 3600 }] - append retval [::format %02d [expr { $z / 60 }]] - set z [expr { $z % 60 }] - if { $z != 0 } { - append retval [::format %02d $z] - } - return $retval -} - -#---------------------------------------------------------------------- -# -# FormatStarDate -- -# -# Formats a date as a StarDate. -# -# Parameters: -# date - Dictionary containing 'year', 'dayOfYear', and -# 'localSeconds' fields. -# -# Results: -# Returns the given date formatted as a StarDate. -# -# Side effects: -# None. -# -# Jeff Hobbs put this in to support an atrocious pun about Tcl being -# "Enterprise ready." Now we're stuck with it. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::FormatStarDate { date } { - variable Roddenberry - - # Get day of year, zero based - - set doy [expr { [dict get $date dayOfYear] - 1 }] - - # Determine whether the year is a leap year - - set lp [IsGregorianLeapYear $date] - - # Convert day of year to a fractional year - - if { $lp } { - set fractYear [expr { 1000 * $doy / 366 }] - } else { - set fractYear [expr { 1000 * $doy / 365 }] - } - - # Put together the StarDate - - return [::format "Stardate %02d%03d.%1d" \ - [expr { [dict get $date year] - $Roddenberry }] \ - $fractYear \ - [expr { [dict get $date localSeconds] % 86400 - / ( 86400 / 10 ) }]] -} - -#---------------------------------------------------------------------- -# -# ParseStarDate -- -# -# Parses a StarDate -# -# Parameters: -# year - Year from the Roddenberry epoch -# fractYear - Fraction of a year specifying the day of year. -# fractDay - Fraction of a day -# -# Results: -# Returns a count of seconds from the Posix epoch. -# -# Side effects: -# None. -# -# Jeff Hobbs put this in to support an atrocious pun about Tcl being -# "Enterprise ready." Now we're stuck with it. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::ParseStarDate { year fractYear fractDay } { - variable Roddenberry - - # Build a tentative date from year and fraction. - - set date [dict create \ - gregorian 1 \ - era CE \ - year [expr { $year + $Roddenberry }] \ - dayOfYear [expr { $fractYear * 365 / 1000 + 1 }]] - set date [GetJulianDayFromGregorianEraYearDay $date[set date {}]] - - # Determine whether the given year is a leap year - - set lp [IsGregorianLeapYear $date] - - # Reconvert the fractional year according to whether the given year is a - # leap year - - if { $lp } { - dict set date dayOfYear \ - [expr { $fractYear * 366 / 1000 + 1 }] - } else { - dict set date dayOfYear \ - [expr { $fractYear * 365 / 1000 + 1 }] - } - dict unset date julianDay - dict unset date gregorian - set date [GetJulianDayFromGregorianEraYearDay $date[set date {}]] - - return [expr { - 86400 * [dict get $date julianDay] - - 210866803200 - + ( 86400 / 10 ) * $fractDay - }] -} - -#---------------------------------------------------------------------- -# -# ScanWide -- -# -# Scans a wide integer from an input -# -# Parameters: -# str - String containing a decimal wide integer -# -# Results: -# Returns the string as a pure wide integer. Throws an error if the -# string is misformatted or out of range. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::ScanWide { str } { - set count [::scan $str {%ld %c} result junk] - if { $count != 1 } { - return -code error -errorcode [list CLOCK notAnInteger $str] \ - "\"$str\" is not an integer" - } - if { [incr result 0] != $str } { - return -code error -errorcode [list CLOCK integervalueTooLarge] \ - "integer value too large to represent" - } - return $result -} - -#---------------------------------------------------------------------- -# -# InterpretTwoDigitYear -- -# -# Given a date that contains only the year of the century, determines -# the target value of a two-digit year. -# -# Parameters: -# date - Dictionary containing fields of the date. -# baseTime - Base time relative to which the date is expressed. -# twoDigitField - Name of the field that stores the two-digit year. -# Default is 'yearOfCentury' -# fourDigitField - Name of the field that will receive the four-digit -# year. Default is 'year' -# -# Results: -# Returns the dictionary augmented with the four-digit year, stored in -# the given key. -# -# Side effects: -# None. -# -# The current rule for interpreting a two-digit year is that the year shall be -# between 1937 and 2037, thus staying within the range of a 32-bit signed -# value for time. This rule may change to a sliding window in future -# versions, so the 'baseTime' parameter (which is currently ignored) is -# provided in the procedure signature. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::InterpretTwoDigitYear { date baseTime - { twoDigitField yearOfCentury } - { fourDigitField year } } { - set yr [dict get $date $twoDigitField] - if { $yr <= 37 } { - dict set date $fourDigitField [expr { $yr + 2000 }] - } else { - dict set date $fourDigitField [expr { $yr + 1900 }] - } - return $date -} - -#---------------------------------------------------------------------- -# -# AssignBaseYear -- -# -# Places the number of the current year into a dictionary. -# -# Parameters: -# date - Dictionary value to update -# baseTime - Base time from which to extract the year, expressed -# in seconds from the Posix epoch -# timezone - the time zone in which the date is being scanned -# changeover - the Julian Day on which the Gregorian calendar -# was adopted in the target locale. -# -# Results: -# Returns the dictionary with the current year assigned. -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::AssignBaseYear { date baseTime timezone changeover } { - variable TZData - - # Find the Julian Day Number corresponding to the base time, and - # find the Gregorian year corresponding to that Julian Day. - - set date2 [GetDateFields $baseTime $TZData($timezone) $changeover] - - # Store the converted year - - dict set date era [dict get $date2 era] - dict set date year [dict get $date2 year] - - return $date -} - -#---------------------------------------------------------------------- -# -# AssignBaseIso8601Year -- -# -# Determines the base year in the ISO8601 fiscal calendar. -# -# Parameters: -# date - Dictionary containing the fields of the date that -# is to be augmented with the base year. -# baseTime - Base time expressed in seconds from the Posix epoch. -# timeZone - Target time zone -# changeover - Julian Day of adoption of the Gregorian calendar in -# the target locale. -# -# Results: -# Returns the given date with "iso8601Year" set to the -# base year. -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::AssignBaseIso8601Year {date baseTime timeZone changeover} { - variable TZData - - # Find the Julian Day Number corresponding to the base time - - set date2 [GetDateFields $baseTime $TZData($timeZone) $changeover] - - # Calculate the ISO8601 date and transfer the year - - dict set date era CE - dict set date iso8601Year [dict get $date2 iso8601Year] - return $date -} - -#---------------------------------------------------------------------- -# -# AssignBaseMonth -- -# -# Places the number of the current year and month into a -# dictionary. -# -# Parameters: -# date - Dictionary value to update -# baseTime - Time from which the year and month are to be -# obtained, expressed in seconds from the Posix epoch. -# timezone - Name of the desired time zone -# changeover - Julian Day on which the Gregorian calendar was adopted. -# -# Results: -# Returns the dictionary with the base year and month assigned. -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::AssignBaseMonth {date baseTime timezone changeover} { - variable TZData - - # Find the year and month corresponding to the base time - - set date2 [GetDateFields $baseTime $TZData($timezone) $changeover] - dict set date era [dict get $date2 era] - dict set date year [dict get $date2 year] - dict set date month [dict get $date2 month] - return $date -} - -#---------------------------------------------------------------------- -# -# AssignBaseWeek -- -# -# Determines the base year and week in the ISO8601 fiscal calendar. -# -# Parameters: -# date - Dictionary containing the fields of the date that -# is to be augmented with the base year and week. -# baseTime - Base time expressed in seconds from the Posix epoch. -# changeover - Julian Day on which the Gregorian calendar was adopted -# in the target locale. -# -# Results: -# Returns the given date with "iso8601Year" set to the -# base year and "iso8601Week" to the week number. -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::AssignBaseWeek {date baseTime timeZone changeover} { - variable TZData - - # Find the Julian Day Number corresponding to the base time - - set date2 [GetDateFields $baseTime $TZData($timeZone) $changeover] - - # Calculate the ISO8601 date and transfer the year - - dict set date era CE - dict set date iso8601Year [dict get $date2 iso8601Year] - dict set date iso8601Week [dict get $date2 iso8601Week] - return $date -} - -#---------------------------------------------------------------------- -# -# AssignBaseJulianDay -- -# -# Determines the base day for a time-of-day conversion. -# -# Parameters: -# date - Dictionary that is to get the base day -# baseTime - Base time expressed in seconds from the Posix epoch -# changeover - Julian day on which the Gregorian calendar was -# adpoted in the target locale. -# -# Results: -# Returns the given dictionary augmented with a 'julianDay' field -# that contains the base day. -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::AssignBaseJulianDay { date baseTime timeZone changeover } { - variable TZData - - # Find the Julian Day Number corresponding to the base time - - set date2 [GetDateFields $baseTime $TZData($timeZone) $changeover] - dict set date julianDay [dict get $date2 julianDay] - - return $date -} - -#---------------------------------------------------------------------- -# -# InterpretHMSP -- -# -# Interprets a time in the form "hh:mm:ss am". -# -# Parameters: -# date -- Dictionary containing "hourAMPM", "minute", "second" -# and "amPmIndicator" fields. -# -# Results: -# Returns the number of seconds from local midnight. -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::InterpretHMSP { date } { - set hr [dict get $date hourAMPM] - if { $hr == 12 } { - set hr 0 - } - if { [dict get $date amPmIndicator] } { - incr hr 12 - } - dict set date hour $hr - return [InterpretHMS $date[set date {}]] -} - -#---------------------------------------------------------------------- -# -# InterpretHMS -- -# -# Interprets a 24-hour time "hh:mm:ss" -# -# Parameters: -# date -- Dictionary containing the "hour", "minute" and "second" -# fields. -# -# Results: -# Returns the given dictionary augmented with a "secondOfDay" -# field containing the number of seconds from local midnight. -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::InterpretHMS { date } { - return [expr { - ( [dict get $date hour] * 60 - + [dict get $date minute] ) * 60 - + [dict get $date second] - }] + # Handle locale-dependent format groups by mapping them out of the format + # string. Note that the order of the [string map] operations is + # significant because later formats can refer to later ones; for example + # %c can refer to %X, which in turn can refer to %T. + + set mlst { + %% %% + %D %m/%d/%Y + %+ {%a %b %e %H:%M:%S %Z %Y} + } + lappend mlst %EY [string map $mlst [dict get $mcd LOCALE_YEAR_FORMAT]] + lappend mlst %T [string map $mlst [dict get $mcd TIME_FORMAT_24_SECS]] + lappend mlst %R [string map $mlst [dict get $mcd TIME_FORMAT_24]] + lappend mlst %r [string map $mlst [dict get $mcd TIME_FORMAT_12]] + lappend mlst %X [string map $mlst [dict get $mcd TIME_FORMAT]] + lappend mlst %EX [string map $mlst [dict get $mcd LOCALE_TIME_FORMAT]] + lappend mlst %x [string map $mlst [dict get $mcd DATE_FORMAT]] + lappend mlst %Ex [string map $mlst [dict get $mcd LOCALE_DATE_FORMAT]] + lappend mlst %c [string map $mlst [dict get $mcd DATE_TIME_FORMAT]] + lappend mlst %Ec [string map $mlst [dict get $mcd LOCALE_DATE_TIME_FORMAT]] + + dict set LocFmtMap $locale $mlst + } + + # translate copy of format (don't use format object here, because otherwise + # it can lose its internal representation (string map - convert to unicode) + set locfmt [string map $mlst [string range " $format" 1 end]] + + # Save original format as long as possible, because of internal + # representation (performance). + # Note that in this case such format will be never localized (also + # using another locales). To prevent this return a duplicate (but + # it may be slower). + if {$locfmt eq $format} { + set locfmt $format + } + + return $locfmt } #---------------------------------------------------------------------- @@ -2980,13 +897,12 @@ proc ::tcl::clock::InterpretHMS { date } { # Returns the system time zone. # # Side effects: -# Stores the system time zone in the 'CachedSystemTimeZone' -# variable, since determining it may be an expensive process. +# Stores the system time zone in engine configuration, since +# determining it may be an expensive process. # #---------------------------------------------------------------------- proc ::tcl::clock::GetSystemTimeZone {} { - variable CachedSystemTimeZone variable TimeZoneBad if {[set result [getenv TCL_TZ]] ne {}} { @@ -2994,11 +910,12 @@ proc ::tcl::clock::GetSystemTimeZone {} { } elseif {[set result [getenv TZ]] ne {}} { set timezone $result } else { - # Cache the time zone only if it was detected by one of the - # expensive methods. - if { [info exists CachedSystemTimeZone] } { - set timezone $CachedSystemTimeZone - } elseif { $::tcl_platform(platform) eq {windows} } { + # ask engine for the cached timezone: + set timezone [configure -system-tz] + if { $timezone ne "" } { + return $timezone + } + if { $::tcl_platform(platform) eq {windows} } { set timezone [GuessWindowsTimeZone] } elseif { [file exists /etc/localtime] && ![catch {ReadZoneinfoFile \ @@ -3007,48 +924,19 @@ proc ::tcl::clock::GetSystemTimeZone {} { } else { set timezone :localtime } - set CachedSystemTimeZone $timezone } if { ![dict exists $TimeZoneBad $timezone] } { - dict set TimeZoneBad $timezone [catch {SetupTimeZone $timezone}] - } - if { [dict get $TimeZoneBad $timezone] } { - return :localtime - } else { - return $timezone + catch {set timezone [SetupTimeZone $timezone]} } -} -#---------------------------------------------------------------------- -# -# ConvertLegacyTimeZone -- -# -# Given an alphanumeric time zone identifier and the system time zone, -# convert the alphanumeric identifier to an unambiguous time zone. -# -# Parameters: -# tzname - Name of the time zone to convert -# -# Results: -# Returns a time zone name corresponding to tzname, but in an -# unambiguous form, generally +hhmm. -# -# This procedure is implemented primarily to allow the parsing of RFC822 -# date/time strings. Processing a time zone name on input is not recommended -# practice, because there is considerable room for ambiguity; for instance, is -# BST Brazilian Standard Time, or British Summer Time? -# -#---------------------------------------------------------------------- + if { [dict exists $TimeZoneBad $timezone] } { + set timezone :localtime + } -proc ::tcl::clock::ConvertLegacyTimeZone { tzname } { - variable LegacyTimeZone + # tell backend - current system timezone: + configure -system-tz $timezone - set tzname [string tolower $tzname] - if { ![dict exists $LegacyTimeZone $tzname] } { - return -code error -errorcode [list CLOCK badTZName $tzname] \ - "time zone \"$tzname\" not found" - } - return [dict get $LegacyTimeZone $tzname] + return $timezone } #---------------------------------------------------------------------- @@ -3068,15 +956,19 @@ proc ::tcl::clock::ConvertLegacyTimeZone { tzname } { # #---------------------------------------------------------------------- -proc ::tcl::clock::SetupTimeZone { timezone } { +proc ::tcl::clock::SetupTimeZone { timezone {alias {}} } { variable TZData if {! [info exists TZData($timezone)] } { - variable MINWIDE - if { $timezone eq {:localtime} } { - # Nothing to do, we'll convert using the localtime function - } elseif { + variable TimeZoneBad + if { [dict exists $TimeZoneBad $timezone] } { + return -code error \ + -errorcode [list CLOCK badTimeZone $timezone] \ + "time zone \"$timezone\" not found" + } + variable MINWIDE + if { [regexp {^([-+])(\d\d)(?::?(\d\d)(?::?(\d\d))?)?} $timezone \ -> s hh mm ss] } then { @@ -3109,6 +1001,7 @@ proc ::tcl::clock::SetupTimeZone { timezone } { LoadZoneinfoFile [string range $timezone 1 end] }] } then { + dict set TimeZoneBad $timezone 1 return -code error \ -errorcode [list CLOCK badTimeZone $timezone] \ "time zone \"$timezone\" not found" @@ -3120,25 +1013,43 @@ proc ::tcl::clock::SetupTimeZone { timezone } { if { [lindex [dict get $opts -errorcode] 0] eq {CLOCK} } { dict unset opts -errorinfo } + dict set TimeZoneBad $timezone 1 return -options $opts $data } else { set TZData($timezone) $data } } else { + + variable LegacyTimeZone + # We couldn't parse this as a POSIX time zone. Try again with a # time zone file - this time without a colon if { [catch { LoadTimeZoneFile $timezone }] && [catch { LoadZoneinfoFile $timezone } - opts] } { + + # Check may be a legacy zone: + + if { $alias eq {} && ![catch { + set tzname [dict get $LegacyTimeZone [string tolower $timezone]] + }] } { + set tzname [::tcl::clock::SetupTimeZone $tzname $timezone] + set TZData($timezone) $TZData($tzname) + # tell backend - timezone is initialized and return shared timezone object: + return [configure -setup-tz $timezone] + } + dict unset opts -errorinfo + dict set TimeZoneBad $timezone 1 return -options $opts "time zone $timezone not found" } set TZData($timezone) $TZData(:$timezone) } } - return + # tell backend - timezone is initialized and return shared timezone object: + configure -setup-tz $timezone } #---------------------------------------------------------------------- @@ -3168,10 +1079,9 @@ proc ::tcl::clock::SetupTimeZone { timezone } { proc ::tcl::clock::GuessWindowsTimeZone {} { variable WinZoneInfo - variable NoRegistry variable TimeZoneBad - if { [info exists NoRegistry] } { + if { ![_hasRegistry] } { return :localtime } @@ -3209,12 +1119,12 @@ proc ::tcl::clock::GuessWindowsTimeZone {} { if { [dict exists $WinZoneInfo $data] } { set tzname [dict get $WinZoneInfo $data] if { ! [dict exists $TimeZoneBad $tzname] } { - dict set TimeZoneBad $tzname [catch {SetupTimeZone $tzname}] + catch {set tzname [SetupTimeZone $tzname]} } } else { set tzname {} } - if { $tzname eq {} || [dict get $TimeZoneBad $tzname] } { + if { $tzname eq {} || [dict exists $TimeZoneBad $tzname] } { lassign $data \ bias stdBias dstBias \ stdYear stdMonth stdDayOfWeek stdDayOfMonth \ @@ -3885,14 +1795,14 @@ proc ::tcl::clock::DeterminePosixDSTTime { z bound y } { # Determine the start or end day of DST - set date [dict create era CE year $y] + set date [dict create era CE year $y gregorian 1] set doy [dict get $z ${bound}DayOfYear] if { $doy ne {} } { # Time was specified as a day of the year if { [dict get $z ${bound}J] ne {} - && [IsGregorianLeapYear $y] + && [IsGregorianLeapYear $date] && ( $doy > $FEB_28 ) } { incr doy } @@ -3941,43 +1851,6 @@ proc ::tcl::clock::DeterminePosixDSTTime { z bound y } { #---------------------------------------------------------------------- # -# GetLocaleEra -- -# -# Given local time expressed in seconds from the Posix epoch, -# determine localized era and year within the era. -# -# Parameters: -# date - Dictionary that must contain the keys, 'localSeconds', -# whose value is expressed as the appropriate local time; -# and 'year', whose value is the Gregorian year. -# etable - Value of the LOCALE_ERAS key in the message catalogue -# for the target locale. -# -# Results: -# Returns the dictionary, augmented with the keys, 'localeEra' and -# 'localeYear'. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::GetLocaleEra { date etable } { - set index [BSearch $etable [dict get $date localSeconds]] - if { $index < 0} { - dict set date localeEra \ - [::format %02d [expr { [dict get $date year] / 100 }]] - dict set date localeYear [expr { - [dict get $date year] % 100 - }] - } else { - dict set date localeEra [lindex $etable $index 1] - dict set date localeYear [expr { - [dict get $date year] - [lindex $etable $index 2] - }] - } - return $date -} - -#---------------------------------------------------------------------- -# # GetJulianDayFromEraYearDay -- # # Given a year, month and day on the Gregorian calendar, determines @@ -4155,333 +2028,6 @@ proc ::tcl::clock::WeekdayOnOrBefore { weekday j } { #---------------------------------------------------------------------- # -# BSearch -- -# -# Service procedure that does binary search in several places inside the -# 'clock' command. -# -# Parameters: -# list - List of lists, sorted in ascending order by the -# first elements -# key - Value to search for -# -# Results: -# Returns the index of the greatest element in $list that is less than -# or equal to $key. -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::BSearch { list key } { - if {[llength $list] == 0} { - return -1 - } - if { $key < [lindex $list 0 0] } { - return -1 - } - - set l 0 - set u [expr { [llength $list] - 1 }] - - while { $l < $u } { - # At this point, we know that - # $k >= [lindex $list $l 0] - # Either $u == [llength $list] or else $k < [lindex $list $u+1 0] - # We find the midpoint of the interval {l,u} rounded UP, compare - # against it, and set l or u to maintain the invariant. Note that the - # interval shrinks at each step, guaranteeing convergence. - - set m [expr { ( $l + $u + 1 ) / 2 }] - if { $key >= [lindex $list $m 0] } { - set l $m - } else { - set u [expr { $m - 1 }] - } - } - - return $l -} - -#---------------------------------------------------------------------- -# -# clock add -- -# -# Adds an offset to a given time. -# -# Syntax: -# clock add clockval ?count unit?... ?-option value? -# -# Parameters: -# clockval -- Starting time value -# count -- Amount of a unit of time to add -# unit -- Unit of time to add, must be one of: -# years year months month weeks week -# days day hours hour minutes minute -# seconds second -# -# Options: -# -gmt BOOLEAN -# (Deprecated) Flag synonymous with '-timezone :GMT' -# -timezone ZONE -# Name of the time zone in which calculations are to be done. -# -locale NAME -# Name of the locale in which calculations are to be done. -# Used to determine the Gregorian change date. -# -# Results: -# Returns the given time adjusted by the given offset(s) in -# order. -# -# Notes: -# It is possible that adding a number of months or years will adjust the -# day of the month as well. For instance, the time at one month after -# 31 January is either 28 or 29 February, because February has fewer -# than 31 days. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::add { clockval args } { - if { [llength $args] % 2 != 0 } { - set cmdName "clock add" - return -code error \ - -errorcode [list CLOCK wrongNumArgs] \ - "wrong \# args: should be\ - \"$cmdName clockval ?number units?...\ - ?-gmt boolean? ?-locale LOCALE? ?-timezone ZONE?\"" - } - if { [catch { expr {wide($clockval)} } result] } { - return -code error $result - } - - set offsets {} - set gmt 0 - set locale c - set timezone [GetSystemTimeZone] - - foreach { a b } $args { - if { [string is integer -strict $a] } { - lappend offsets $a $b - } else { - switch -exact -- $a { - -g - -gm - -gmt { - set saw(-gmt) {} - set gmt $b - } - -l - -lo - -loc - -loca - -local - -locale { - set locale [string tolower $b] - } - -t - -ti - -tim - -time - -timez - -timezo - -timezon - - -timezone { - set saw(-timezone) {} - set timezone $b - } - default { - throw [list CLOCK badOption $a] \ - "bad option \"$a\":\ - must be -gmt, -locale or -timezone" - } - } - } - } - - # Check options for validity - - if { [info exists saw(-gmt)] && [info exists saw(-timezone)] } { - return -code error \ - -errorcode [list CLOCK gmtWithTimezone] \ - "cannot use -gmt and -timezone in same call" - } - if { [catch { expr { wide($clockval) } } result] } { - return -code error "expected integer but got \"$clockval\"" - } - if { ![string is boolean -strict $gmt] } { - return -code error "expected boolean value but got \"$gmt\"" - } elseif { $gmt } { - set timezone :GMT - } - - EnterLocale $locale - - set changeover [mc GREGORIAN_CHANGE_DATE] - - if {[catch {SetupTimeZone $timezone} retval opts]} { - dict unset opts -errorinfo - return -options $opts $retval - } - - try { - foreach { quantity unit } $offsets { - switch -exact -- $unit { - years - year { - set clockval [AddMonths [expr { 12 * $quantity }] \ - $clockval $timezone $changeover] - } - months - month { - set clockval [AddMonths $quantity $clockval $timezone \ - $changeover] - } - - weeks - week { - set clockval [AddDays [expr { 7 * $quantity }] \ - $clockval $timezone $changeover] - } - days - day { - set clockval [AddDays $quantity $clockval $timezone \ - $changeover] - } - - hours - hour { - set clockval [expr { 3600 * $quantity + $clockval }] - } - minutes - minute { - set clockval [expr { 60 * $quantity + $clockval }] - } - seconds - second { - set clockval [expr { $quantity + $clockval }] - } - - default { - throw [list CLOCK badUnit $unit] \ - "unknown unit \"$unit\", must be \ - years, months, weeks, days, hours, minutes or seconds" - } - } - } - return $clockval - } trap CLOCK {result opts} { - # Conceal the innards of [clock] when it's an expected error - dict unset opts -errorinfo - return -options $opts $result - } -} - -#---------------------------------------------------------------------- -# -# AddMonths -- -# -# Add a given number of months to a given clock value in a given -# time zone. -# -# Parameters: -# months - Number of months to add (may be negative) -# clockval - Seconds since the epoch before the operation -# timezone - Time zone in which the operation is to be performed -# -# Results: -# Returns the new clock value as a number of seconds since -# the epoch. -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::AddMonths { months clockval timezone changeover } { - variable DaysInRomanMonthInCommonYear - variable DaysInRomanMonthInLeapYear - variable TZData - - # Convert the time to year, month, day, and fraction of day. - - set date [GetDateFields $clockval $TZData($timezone) $changeover] - dict set date secondOfDay [expr { - [dict get $date localSeconds] % 86400 - }] - dict set date tzName $timezone - - # Add the requisite number of months - - set m [dict get $date month] - incr m $months - incr m -1 - set delta [expr { $m / 12 }] - set mm [expr { $m % 12 }] - dict set date month [expr { $mm + 1 }] - dict incr date year $delta - - # If the date doesn't exist in the current month, repair it - - if { [IsGregorianLeapYear $date] } { - set hath [lindex $DaysInRomanMonthInLeapYear $mm] - } else { - set hath [lindex $DaysInRomanMonthInCommonYear $mm] - } - if { [dict get $date dayOfMonth] > $hath } { - dict set date dayOfMonth $hath - } - - # Reconvert to a number of seconds - - set date [GetJulianDayFromEraYearMonthDay \ - $date[set date {}]\ - $changeover] - dict set date localSeconds [expr { - -210866803200 - + ( 86400 * wide([dict get $date julianDay]) ) - + [dict get $date secondOfDay] - }] - set date [ConvertLocalToUTC $date[set date {}] $TZData($timezone) \ - $changeover] - - return [dict get $date seconds] - -} - -#---------------------------------------------------------------------- -# -# AddDays -- -# -# Add a given number of days to a given clock value in a given time -# zone. -# -# Parameters: -# days - Number of days to add (may be negative) -# clockval - Seconds since the epoch before the operation -# timezone - Time zone in which the operation is to be performed -# changeover - Julian Day on which the Gregorian calendar was adopted -# in the target locale. -# -# Results: -# Returns the new clock value as a number of seconds since the epoch. -# -# Side effects: -# None. -# -#---------------------------------------------------------------------- - -proc ::tcl::clock::AddDays { days clockval timezone changeover } { - variable TZData - - # Convert the time to Julian Day - - set date [GetDateFields $clockval $TZData($timezone) $changeover] - dict set date secondOfDay [expr { - [dict get $date localSeconds] % 86400 - }] - dict set date tzName $timezone - - # Add the requisite number of days - - dict incr date julianDay $days - - # Reconvert to a number of seconds - - dict set date localSeconds [expr { - -210866803200 - + ( 86400 * wide([dict get $date julianDay]) ) - + [dict get $date secondOfDay] - }] - set date [ConvertLocalToUTC $date[set date {}] $TZData($timezone) \ - $changeover] - - return [dict get $date seconds] - -} - -#---------------------------------------------------------------------- -# # ChangeCurrentLocale -- # # The global locale was changed within msgcat. @@ -4499,20 +2045,7 @@ proc ::tcl::clock::AddDays { days clockval timezone changeover } { #---------------------------------------------------------------------- proc ::tcl::clock::ChangeCurrentLocale {args} { - variable FormatProc - variable LocaleNumeralCache - variable CachedSystemTimeZone - variable TimeZoneBad - - foreach p [info procs [namespace current]::scanproc'*'current] { - rename $p {} - } - foreach p [info procs [namespace current]::formatproc'*'current] { - rename $p {} - } - - catch {array unset FormatProc *'current} - set LocaleNumeralCache {} + configure -current-locale [lindex $args 0] } #---------------------------------------------------------------------- @@ -4533,21 +2066,17 @@ proc ::tcl::clock::ChangeCurrentLocale {args} { #---------------------------------------------------------------------- proc ::tcl::clock::ClearCaches {} { - variable FormatProc - variable LocaleNumeralCache - variable CachedSystemTimeZone + variable LocFmtMap + variable mcMergedCat variable TimeZoneBad - foreach p [info procs [namespace current]::scanproc'*] { - rename $p {} - } - foreach p [info procs [namespace current]::formatproc'*] { - rename $p {} - } + # tell backend - should invalidate: + configure -clear + + # clear msgcat cache: + set mcMergedCat [dict create] - catch {unset FormatProc} - set LocaleNumeralCache {} - catch {unset CachedSystemTimeZone} + set LocFmtMap {} set TimeZoneBad {} InitTZData } |