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::pool::date::2month (date) | ||
Extract the month information from a date. | ||
Argument: date | The date to look at. | |
Returns: A month in the form mm/yyyy. |
::pool::date::StripLeadingZeros (x) | ||
Strips leading zeros from a number, preventing octal interpretation | ||
Notes: This implementation is significantly faster than 'regsub {^0*((1-90-9*)|0)$} $x {\1} x'. The regsub averages 160 microsecs in all cases. This realization however requires only ~142 microsecs in the worst case and goes down to ~128 or ~85 microsecs (0-series, {}).&p Note, '0 != string compare "" $x' is definitely faster than '$x != {}'. The same holds for the second comparison.&p All timings done using tcl 8.0 | ||
Argument: x | Number forced into decimal interpretation | |
Returns: a decimal number |
::pool::date::eq (a b) | ||
Are the dates a and b equal? | ||
Argument: a | first date to compare | |
Argument: b | second date to compare | |
Returns: 1, if answer is yes, 0 else. |
::pool::date::ge (a b) | ||
Is date a greater than or equal to date b? | ||
Argument: a | first date to compare | |
Argument: b | second date to compare | |
Returns: 1, if answer is yes, 0 else. |
::pool::date::gt (a b) | ||
Is date a greater than date b? | ||
Argument: a | first date to compare | |
Argument: b | second date to compare | |
Returns: 1, if answer is yes, 0 else. |
::pool::date::index (date) | ||
Convert given date into index of day (01/01/year is mapped onto day 1). | ||
Argument: date | The date to convert. | |
Returns: Index of date into its year. |
::pool::date::intervalIsMonth (a b) | ||
Checks wether the interval defined by dates a and b covers a single month. | ||
Argument: a | Start of interval, inclusive | |
Argument: b | End of interval, inclusive | |
Returns: 1, if answer is yes, 0 else. |
::pool::date::intervalIsYear (a b) | ||
Checks wether the interval defined by dates a and b covers a single year. | ||
Argument: a | Start of interval, inclusive | |
Argument: b | End of interval, inclusive | |
Returns: 1, if answer is yes, 0 else. |
::pool::date::isYearStart (date) | ||
Checks wether the given date is the first of january or not. | ||
Argument: date | The date to look at. | |
Returns: 1, if answer is yes, 0 else. |
::pool::date::join (y m d) | ||
compose a date from single components | ||
Argument: y | The year to use in the composed date | |
Argument: m | The month to use in the composed date | |
Argument: d | The day to use in the composed date | |
Returns: A date in the form mm/dd/yyyy |
::pool::date::joinMonth (y m) | ||
compose a month from single components | ||
Argument: y | The year to use in the composed date | |
Argument: m | The month to use in the composed date | |
Returns: A month in the form mm/yyyy |
::pool::date::joinMonthDay (month day) | ||
merge month and day into a complete date | ||
Argument: month | The month (mm/yyyy) to use in the composition | |
Argument: day | The day to use in the composition | |
Returns: A date in the form mm/dd/yyyy |
::pool::date::le (a b) | ||
Is date a smaller than or equal to date b? | ||
Argument: a | first date to compare | |
Argument: b | second date to compare | |
Returns: 1, if answer is yes, 0 else. |
::pool::date::leMonth (a b) | ||
Is month a smaller than or equal to month b? | ||
Argument: a | first month to compare | |
Argument: b | second month to compare | |
Returns: 1, if answer is yes, 0 else. |
::pool::date::leapYear (y) | ||
Determines wether the given year is a leap year or not. The gregorian rule is used, i.e.: Every 4th is a leap year, with the exception of every 100th, but every 400th is one nevertheless. | ||
Argument: y | The year to check | |
Returns: 1 for a leap year, 0 else. |
::pool::date::lt (a b) | ||
Is date a smaller than date b? | ||
Argument: a | first date to compare | |
Argument: b | second date to compare | |
Returns: 1, if answer is yes, 0 else. |
::pool::date::monthFirstDay (month) | ||
Argument: month | month to look at. | |
Returns: The date for the first day of the given month. |
::pool::date::monthLastDay (month) | ||
Argument: month | month to look at. | |
Returns: The date for the last day of the given month. |
::pool::date::monthLength (month) | ||
Computes the length of the specified month, in days | ||
Argument: month | The month whose length shall be determined. | |
Returns: The length of month, in days. |
::pool::date::monthName (m) | ||
Map a month-number m to an english name. | ||
Argument: m | The index to convert (range 01..12) | |
Returns: The english name of the month m |
::pool::date::monthNumber (monthname) | ||
Map the english name of a month (monthname) to its number (range 1..12). | ||
Argument: monthname | The name to convert into an number. | |
Returns: The month number associated to the name. |
::pool::date::ne (a b) | ||
Are the dates a and b different? | ||
Argument: a | first date to compare | |
Argument: b | second date to compare | |
Returns: 1, if answer is yes, 0 else. |
::pool::date::next (date) | ||
Step from date to next day. | ||
Dangers: A hack is used to get Normal/DST switches (+26 hours instead auf +24). A gregorian calendar is assumed. Entirely missing days are not handled. | ||
Argument: date | The date to look at. | |
Returns: The day after date. |
::pool::date::nextMonth (month) | ||
step from specified month to the month after that | ||
Argument: month | The month to look at. | |
Returns: The month after month. |
::pool::date::now () | ||
Determines current date | ||
Returns: The current date in the form mm/dd/yyyy |
::pool::date::nowTime () | ||
Determines current date and time, default format | ||
Returns: The current date and time. |
::pool::date::prev (date) | ||
Step from date to previous day. | ||
Dangers: A hack is used to get Normal/DST switches (-22 hours instead of -24). A gregorian calendar is assumed. Entirely missing days are not handled. | ||
Argument: date | The date to look at. | |
Returns: The day before date. |
::pool::date::prevMonth (month) | ||
step from specified month to the month before that | ||
Argument: month | The month to look at. | |
Returns: The month before month. |
::pool::date::split (date y m d) | ||
Split a date into its components, strip away leading zeros to avoid misintepretation as octal numbers. | ||
Argument: date | The date to decompose | |
Argument: y | Name of the variable to store the year into. | |
Argument: m | Name of the variable to store the month into. | |
Argument: d | Name of the variable to store the day into. |
::pool::date::splitMonth (month y m) | ||
Split a month into its components, strip away leading zeros to avoid misintepretation as octal numbers. | ||
Argument: month | The month to decompose. | |
Argument: y | Name of the variable to store the year into. | |
Argument: m | Name of the variable to store the month into. |
::pool::date::weekdayName (weekday) | ||
Map a weekday index (0..6, 0 = sunday) to the english name of the weekday. To obtain a short version do something like (string range (date weekdayName ..) 1 2). | ||
Argument: weekday | The index to convert. |
::pool::date::yearLength (year) | ||
Computes the length of the given year, in days. | ||
Argument: year | Year whose length shall be determined | |
Returns: The length of year, in days. |
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