Re: [basex-talk] Converting a Date

[Ron Katriel]

Perfect. As always appreciate the great support and quick turnaround!

Best,
Ron

> On Nov 6, 2018, at 3:56 AM, Christian Grün  wrote:
> 
> We are working on a web site, which will facilitate the management of
> new external modules for BaseX. Users are expected to be able to
> upload new modules, search for existing modules and install them in
> local BaseX instances with a few clicks. This module will definitely
> be a good candidate for this web site.
> 
> 
>> On Tue, Nov 6, 2018 at 1:35 AM Ron Katriel  wrote:
>> 
>> Hi Andy,
>> 
>> Thanks for the quick solution! I imported the new module and was able to use 
>> the new function as follows:
>> 
>> xs:date(dates:parseDate($trial/completion_date)//value/text()) <= 
>> fn:current-date()
>> 
>> I verified the correctness for ~300 dates and the logic appears solid (for 
>> the kind of dates discussed below).
>> 
>> Any chance this could find its way into a BaseX release?
>> 
>> Best,
>> Ron
>> 
>> On November 5, 2018 at 10:27:48 AM, Andy Bunce (bunce.a...@gmail.com) wrote:
>> 
>> Hi Ron,
>> 
>> I took a quick look at Joe's module and made the following changes:
>> 
>> Change datetime:format-date(..,"-MM-dd") to 
>> format-date(..,"[]-[MM]-[DD]")
>> Change xdt:dayTimeDuration("P1D") -> xs:dayTimeDuration
>> Change function in namespace local: to dates:
>> 
>> And saved as a gist [1]. Then in BaseX
>> 
>> import module namespace dates = 
>> "https://urldefense.proofpoint.com/v2/url?u=http-3A__xqdev.com_dateparser=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=KSPrAMbuxlxJKbnir6BnBSJRDflEuHmbAsMCnMJLIxQ=sYD9W2J5UO3Yxx9kgSMF2kixR8dfnRNA4dr4aG8OCKY=;
>>  at 
>> "https://urldefense.proofpoint.com/v2/url?u=https-3A__gist.githubusercontent.com_apb2006_ee0effdd53ca80daf4f1b3e99794ed89_raw_7eedb8343c3cbf0e4ef0063be5af532e8bbfe485_date-2Dparser.xqm=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=KSPrAMbuxlxJKbnir6BnBSJRDflEuHmbAsMCnMJLIxQ=F3LKDivtSE6HjYFHiydFoDkPc4QwuA9DxY7KGutDgFg=;;
>> 
>> dates:parseDate("March 2017")
>> 
>> Returns
>> 
>>  
>>2017-03-01
>>2017-03-31
>>  
>>  2017-03-01
>> 
>> 
>> Joe,
>> I think all these changes are compatible with eXist too? [2]
>> 
>> Hope this helps.
>> /Andy
>> 
>> [1] 
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__gist.github.com_apb2006_ee0effdd53ca80daf4f1b3e99794ed89=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=KSPrAMbuxlxJKbnir6BnBSJRDflEuHmbAsMCnMJLIxQ=lk5it1IL8ohiUwEKO-i34hIoz_J5gErrAYCbIR4oRAE=
>> [2] 
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__sourceforge.net_p_exist_mailman_message_34988159_=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=KSPrAMbuxlxJKbnir6BnBSJRDflEuHmbAsMCnMJLIxQ=3_TI_h72pN_xdioUzLeDu-876lz_H-YlgHDJr2MAIX0=
>> 
>>> On Mon, 5 Nov 2018 at 02:03, Ron Katriel  wrote:
>>> 
>>> Hi Joe,
>>> 
>>> Thanks for sharing that. I tried adapting your eXist port to BaseX and ran 
>>> into issues with namespaces. At this point I don’t have the time or 
>>> expertise to complete this but hopefully someone else will take up the 
>>> challenge.
>>> 
>>> Best,
>>> Ron
>>> 
>>> On November 3, 2018 at 12:19:49 AM, Joe Wicentowski (joe...@gmail.com) 
>>> wrote:
>>> 
>>> Hi Ron,
>>> 
>>> You might find Ryan Grimm's date-parser library module useful if you have a 
>>> larger range of date formats to handle:
>>> 
>>>  
>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_marklogic-2Dcommunity_commons_blob_master_dates_date-2Dparser.xqy=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=KSPrAMbuxlxJKbnir6BnBSJRDflEuHmbAsMCnMJLIxQ=XB-U5gSL9q8fTpeMVvJHsZcYhEkmxKm5k3z12cmGBjk=
>>> 
>>> While it was written with some MarkLogic-specific code, I adapted it for 
>>> use with eXist (but haven't tested it with BaseX):
>>> 
>>>  
>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_HistoryAtState_twitter_blob_master_modules_date-2Dparser.xqm=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=KSPrAMbuxlxJKbnir6BnBSJRDflEuHmbAsMCnMJLIxQ=EFaBAZHvFF1zuS5mpHuVISqqj_tn5jn1Nda_02EH3Yw=
>>> 
>>> Best,
>>> Joe
>>> 
 On Fri, Nov 2, 2018 at 6:48 PM Ron Katriel  wrote:
 
 Hi Christian,
 
 Much appreciated! I hardened the code (see below) since the dates (from 
 CT.gov) occasionally also have the day of the month (e.g., “March 21, 
 2014”). Currently the function is dropping the day in such cases but I 
 will look into capturing it in a future iteration.
 
 Best,
 Ron
 
 
 declare function local:to-date($string) {
  if (fn:matches($string, '[A-Za-z]+ [0-9]+') or fn:matches($string, 
 '[A-Za-z]+ [0-9]+, [0-9]+'))
  then
  let $m := index-of($MONTHS, substring-before($string, ' '))
  let $y := xs:integer(functx:substring-after-last($string, ' '))
  return xs:date(string-join(
(
  format-number($y, ''),
  format-number($m, 

Re: [basex-talk] Converting a Date

[Christian Grün]

We are working on a web site, which will facilitate the management of
new external modules for BaseX. Users are expected to be able to
upload new modules, search for existing modules and install them in
local BaseX instances with a few clicks. This module will definitely
be a good candidate for this web site.


On Tue, Nov 6, 2018 at 1:35 AM Ron Katriel  wrote:
>
> Hi Andy,
>
> Thanks for the quick solution! I imported the new module and was able to use 
> the new function as follows:
>
> xs:date(dates:parseDate($trial/completion_date)//value/text()) <= 
> fn:current-date()
>
> I verified the correctness for ~300 dates and the logic appears solid (for 
> the kind of dates discussed below).
>
> Any chance this could find its way into a BaseX release?
>
> Best,
> Ron
>
> On November 5, 2018 at 10:27:48 AM, Andy Bunce (bunce.a...@gmail.com) wrote:
>
> Hi Ron,
>
> I took a quick look at Joe's module and made the following changes:
>
> Change datetime:format-date(..,"-MM-dd") to 
> format-date(..,"[]-[MM]-[DD]")
> Change xdt:dayTimeDuration("P1D") -> xs:dayTimeDuration
> Change function in namespace local: to dates:
>
> And saved as a gist [1]. Then in BaseX
>
> import module namespace dates = "http://xqdev.com/dateparser; at 
> "https://gist.githubusercontent.com/apb2006/ee0effdd53ca80daf4f1b3e99794ed89/raw/7eedb8343c3cbf0e4ef0063be5af532e8bbfe485/date-parser.xqm;;
>
> dates:parseDate("March 2017")
>
> Returns
> 
>   
> 2017-03-01
> 2017-03-31
>   
>   2017-03-01
> 
>
> Joe,
> I think all these changes are compatible with eXist too? [2]
>
> Hope this helps.
> /Andy
>
> [1] https://gist.github.com/apb2006/ee0effdd53ca80daf4f1b3e99794ed89
> [2] https://sourceforge.net/p/exist/mailman/message/34988159/
>
> On Mon, 5 Nov 2018 at 02:03, Ron Katriel  wrote:
>>
>> Hi Joe,
>>
>> Thanks for sharing that. I tried adapting your eXist port to BaseX and ran 
>> into issues with namespaces. At this point I don’t have the time or 
>> expertise to complete this but hopefully someone else will take up the 
>> challenge.
>>
>> Best,
>> Ron
>>
>> On November 3, 2018 at 12:19:49 AM, Joe Wicentowski (joe...@gmail.com) wrote:
>>
>> Hi Ron,
>>
>> You might find Ryan Grimm's date-parser library module useful if you have a 
>> larger range of date formats to handle:
>>
>>   
>> https://github.com/marklogic-community/commons/blob/master/dates/date-parser.xqy
>>
>> While it was written with some MarkLogic-specific code, I adapted it for use 
>> with eXist (but haven't tested it with BaseX):
>>
>>   
>> https://github.com/HistoryAtState/twitter/blob/master/modules/date-parser.xqm
>>
>> Best,
>> Joe
>>
>> On Fri, Nov 2, 2018 at 6:48 PM Ron Katriel  wrote:
>>>
>>> Hi Christian,
>>>
>>> Much appreciated! I hardened the code (see below) since the dates (from 
>>> CT.gov) occasionally also have the day of the month (e.g., “March 21, 
>>> 2014”). Currently the function is dropping the day in such cases but I will 
>>> look into capturing it in a future iteration.
>>>
>>> Best,
>>> Ron
>>>
>>>
>>> declare function local:to-date($string) {
>>>   if (fn:matches($string, '[A-Za-z]+ [0-9]+') or fn:matches($string, 
>>> '[A-Za-z]+ [0-9]+, [0-9]+'))
>>>   then
>>>   let $m := index-of($MONTHS, substring-before($string, ' '))
>>>   let $y := xs:integer(functx:substring-after-last($string, ' '))
>>>   return xs:date(string-join(
>>> (
>>>   format-number($y, ''),
>>>   format-number($m, '00'),
>>>   '01'
>>> ),
>>> '-')
>>>   )
>>>   else
>>>   ()
>>> };
>>>
>>> On November 2, 2018 at 4:20:41 PM, Christian Grün 
>>> (christian.gr...@gmail.com) wrote:
>>>
>>> Hi Ron,
>>>
>>> If your timestamp is available in IETF format, you can use
>>> fn:parse-ietf-date [1]. Otherwise, you’ll need to write a simple
>>> function by yourself:
>>>
>>> declare variable $MONTHS := (
>>> 'January', 'February', 'March', 'April', 'May', 'June',
>>> 'July', 'August', 'September', 'October', 'November', 'December'
>>> );
>>>
>>> declare function local:to-date($string) {
>>> let $m := index-of($MONTHS, substring-before($string, ' '))
>>> let $y := xs:integer(substring-after($string, ' '))
>>> return xs:date(string-join((
>>> format-number($y, ''),
>>> format-number($m, '00'),
>>> '01'
>>> ), '-'))
>>> };
>>> local:to-date('March 2017')
>>>
>>> Best,
>>> Christian
>>>
>>> [1] 
>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.w3.org_TR_xpath-2Dfunctions-2D31_-23func-2Dparse-2Dietf-2Ddate=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=Yy9sC1xS_Ix-pGSVDp-Lbmz8BOft0S1WdVpEM-qzRw4=uQ3NqCv8FpHulP4q1arjItJX3-gCHwi_06WN4znRz48=
>>>
>>>
>>>
>>> On Fri, Nov 2, 2018 at 9:09 PM Ron Katriel  wrote:
>>> >
>>> > Hi,
>>> >
>>> > Is there a BaseX function for converting a string date in the form of 
>>> > “March 2017” to xs:date or xs:dateTime?
>>> >
>>> > Thanks,
>>> > Ron

Re: [basex-talk] Converting a Date

[Ron Katriel]

Hi Andy,

Thanks for the quick solution! I imported the new module and was able to
use the new function as follows:

xs:date(dates:parseDate($trial/completion_date)//value/text()) <=
fn:current-date()

I verified the correctness for ~300 dates and the logic appears solid (for
the kind of dates discussed below).

Any chance this could find its way into a BaseX release?

Best,
Ron

On November 5, 2018 at 10:27:48 AM, Andy Bunce (bunce.a...@gmail.com) wrote:

Hi Ron,

I took a quick look at Joe's module and made the following changes:

   1. Change datetime:format-date(..,"-MM-dd") to
   format-date(..,"[]-[MM]-[DD]")
   2. *Change xdt*:dayTimeDuration("P1D") -> *xs*:dayTimeDuration
   3. Change function in namespace *local:* to *dates:*

And saved as a gist [1]. Then in BaseX

import module namespace dates = "http://xqdev.com/dateparser
"
at "
https://gist.githubusercontent.com/apb2006/ee0effdd53ca80daf4f1b3e99794ed89/raw/7eedb8343c3cbf0e4ef0063be5af532e8bbfe485/date-parser.xqm

";

dates:parseDate("March 2017")

Returns

  
2017-03-01
2017-03-31
  
  2017-03-01


Joe,
I think all these changes are compatible with eXist too? [2]

Hope this helps.
/Andy

[1] https://gist.github.com/apb2006/ee0effdd53ca80daf4f1b3e99794ed89

[2] https://sourceforge.net/p/exist/mailman/message/34988159/


On Mon, 5 Nov 2018 at 02:03, Ron Katriel  wrote:

> Hi Joe,
>
> Thanks for sharing that. I tried adapting your eXist port to BaseX and ran
> into issues with namespaces. At this point I don’t have the time or
> expertise to complete this but hopefully someone else will take up the
> challenge.
>
> Best,
> Ron
>
> On November 3, 2018 at 12:19:49 AM, Joe Wicentowski (joe...@gmail.com)
> wrote:
>
> Hi Ron,
>
> You might find Ryan Grimm's date-parser library module useful if you have
> a larger range of date formats to handle:
>
>
> https://github.com/marklogic-community/commons/blob/master/dates/date-parser.xqy
> 
>
> While it was written with some MarkLogic-specific code, I adapted it for
> use with eXist (but haven't tested it with BaseX):
>
>
> https://github.com/HistoryAtState/twitter/blob/master/modules/date-parser.xqm
> 
>
> Best,
> Joe
>
> On Fri, Nov 2, 2018 at 6:48 PM Ron Katriel  wrote:
>
>> Hi Christian,
>>
>> Much appreciated! I hardened the code (see below) since the dates (from
>> CT.gov
>> )
>> occasionally also have the day of the month (e.g., “March 21, 2014”).
>> Currently the function is dropping the day in such cases but I will look
>> into capturing it in a future iteration.
>>
>> Best,
>> Ron
>>
>>
>> declare function local:to-date($string) {
>>   if (fn:matches($string, '[A-Za-z]+ [0-9]+') or fn:matches($string,
>> '[A-Za-z]+ [0-9]+, [0-9]+'))
>>   then
>>   let $m := index-of($MONTHS, substring-before($string, ' '))
>>   let $y := xs:integer(functx:substring-after-last($string, ' '))
>>   return xs:date(string-join(
>> (
>>   format-number($y, ''),
>>   format-number($m, '00'),
>>   '01'
>> ),
>> '-')
>>   )
>>   else
>>   ()
>> };
>>
>> On November 2, 2018 at 4:20:41 

Re: [basex-talk] Converting a Date

[Andy Bunce]

Hi Ron,

I took a quick look at Joe's module and made the following changes:

   1. Change datetime:format-date(..,"-MM-dd") to
   format-date(..,"[]-[MM]-[DD]")
   2. *Change xdt*:dayTimeDuration("P1D") -> *xs*:dayTimeDuration
   3. Change function in namespace *local:* to *dates:*

And saved as a gist [1]. Then in BaseX

import module namespace dates = "http://xqdev.com/dateparser; at "
https://gist.githubusercontent.com/apb2006/ee0effdd53ca80daf4f1b3e99794ed89/raw/7eedb8343c3cbf0e4ef0063be5af532e8bbfe485/date-parser.xqm
";

dates:parseDate("March 2017")

Returns

  
2017-03-01
2017-03-31
  
  2017-03-01


Joe,
I think all these changes are compatible with eXist too? [2]

Hope this helps.
/Andy

[1] https://gist.github.com/apb2006/ee0effdd53ca80daf4f1b3e99794ed89
[2] https://sourceforge.net/p/exist/mailman/message/34988159/

On Mon, 5 Nov 2018 at 02:03, Ron Katriel  wrote:

> Hi Joe,
>
> Thanks for sharing that. I tried adapting your eXist port to BaseX and ran
> into issues with namespaces. At this point I don’t have the time or
> expertise to complete this but hopefully someone else will take up the
> challenge.
>
> Best,
> Ron
>
> On November 3, 2018 at 12:19:49 AM, Joe Wicentowski (joe...@gmail.com)
> wrote:
>
> Hi Ron,
>
> You might find Ryan Grimm's date-parser library module useful if you have
> a larger range of date formats to handle:
>
>
> https://github.com/marklogic-community/commons/blob/master/dates/date-parser.xqy
> 
>
> While it was written with some MarkLogic-specific code, I adapted it for
> use with eXist (but haven't tested it with BaseX):
>
>
> https://github.com/HistoryAtState/twitter/blob/master/modules/date-parser.xqm
> 
>
> Best,
> Joe
>
> On Fri, Nov 2, 2018 at 6:48 PM Ron Katriel  wrote:
>
>> Hi Christian,
>>
>> Much appreciated! I hardened the code (see below) since the dates (from
>> CT.gov
>> )
>> occasionally also have the day of the month (e.g., “March 21, 2014”).
>> Currently the function is dropping the day in such cases but I will look
>> into capturing it in a future iteration.
>>
>> Best,
>> Ron
>>
>>
>> declare function local:to-date($string) {
>>   if (fn:matches($string, '[A-Za-z]+ [0-9]+') or fn:matches($string,
>> '[A-Za-z]+ [0-9]+, [0-9]+'))
>>   then
>>   let $m := index-of($MONTHS, substring-before($string, ' '))
>>   let $y := xs:integer(functx:substring-after-last($string, ' '))
>>   return xs:date(string-join(
>> (
>>   format-number($y, ''),
>>   format-number($m, '00'),
>>   '01'
>> ),
>> '-')
>>   )
>>   else
>>   ()
>> };
>>
>> On November 2, 2018 at 4:20:41 PM, Christian Grün (
>> christian.gr...@gmail.com) wrote:
>>
>> Hi Ron,
>>
>> If your timestamp is available in IETF format, you can use
>> fn:parse-ietf-date [1]. Otherwise, you’ll need to write a simple
>> function by yourself:
>>
>> declare variable $MONTHS := (
>> 'January', 'February', 'March', 'April', 'May', 'June',
>> 'July', 'August', 'September', 'October', 'November', 'December'
>> );
>>
>> declare function local:to-date($string) {
>> let $m := index-of($MONTHS, substring-before($string, ' '))
>> let $y := xs:integer(substring-after($string, ' '))
>> return xs:date(string-join((
>> format-number($y, ''),
>> format-number($m, '00'),
>> '01'
>> ), '-'))
>> };
>> local:to-date('March 2017')
>>
>> Best,
>> Christian
>>
>> [1]
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.w3.org_TR_xpath-2Dfunctions-2D31_-23func-2Dparse-2Dietf-2Ddate=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=Yy9sC1xS_Ix-pGSVDp-Lbmz8BOft0S1WdVpEM-qzRw4=uQ3NqCv8FpHulP4q1arjItJX3-gCHwi_06WN4znRz48=
>>
>>
>>
>> On Fri, Nov 2, 2018 at 9:09 PM Ron Katriel  wrote:
>> >
>> > Hi,
>> >
>> > Is there a BaseX function for converting a string date in the form of
>> “March 2017” to xs:date or xs:dateTime?
>> >
>> > Thanks,
>> > Ron
>>
>>

Re: [basex-talk] Converting a Date

[Ron Katriel]

Hi Joe,

Thanks for sharing that. I tried adapting your eXist port to BaseX and ran
into issues with namespaces. At this point I don’t have the time or
expertise to complete this but hopefully someone else will take up the
challenge.

Best,
Ron

On November 3, 2018 at 12:19:49 AM, Joe Wicentowski (joe...@gmail.com)
wrote:

Hi Ron,

You might find Ryan Grimm's date-parser library module useful if you have a
larger range of date formats to handle:


https://github.com/marklogic-community/commons/blob/master/dates/date-parser.xqy


While it was written with some MarkLogic-specific code, I adapted it for
use with eXist (but haven't tested it with BaseX):


https://github.com/HistoryAtState/twitter/blob/master/modules/date-parser.xqm


Best,
Joe

On Fri, Nov 2, 2018 at 6:48 PM Ron Katriel  wrote:

> Hi Christian,
>
> Much appreciated! I hardened the code (see below) since the dates (from
> CT.gov
> )
> occasionally also have the day of the month (e.g., “March 21, 2014”).
> Currently the function is dropping the day in such cases but I will look
> into capturing it in a future iteration.
>
> Best,
> Ron
>
>
> declare function local:to-date($string) {
>   if (fn:matches($string, '[A-Za-z]+ [0-9]+') or fn:matches($string,
> '[A-Za-z]+ [0-9]+, [0-9]+'))
>   then
>   let $m := index-of($MONTHS, substring-before($string, ' '))
>   let $y := xs:integer(functx:substring-after-last($string, ' '))
>   return xs:date(string-join(
> (
>   format-number($y, ''),
>   format-number($m, '00'),
>   '01'
> ),
> '-')
>   )
>   else
>   ()
> };
>
> On November 2, 2018 at 4:20:41 PM, Christian Grün (
> christian.gr...@gmail.com) wrote:
>
> Hi Ron,
>
> If your timestamp is available in IETF format, you can use
> fn:parse-ietf-date [1]. Otherwise, you’ll need to write a simple
> function by yourself:
>
> declare variable $MONTHS := (
> 'January', 'February', 'March', 'April', 'May', 'June',
> 'July', 'August', 'September', 'October', 'November', 'December'
> );
>
> declare function local:to-date($string) {
> let $m := index-of($MONTHS, substring-before($string, ' '))
> let $y := xs:integer(substring-after($string, ' '))
> return xs:date(string-join((
> format-number($y, ''),
> format-number($m, '00'),
> '01'
> ), '-'))
> };
> local:to-date('March 2017')
>
> Best,
> Christian
>
> [1]
> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.w3.org_TR_xpath-2Dfunctions-2D31_-23func-2Dparse-2Dietf-2Ddate=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=Yy9sC1xS_Ix-pGSVDp-Lbmz8BOft0S1WdVpEM-qzRw4=uQ3NqCv8FpHulP4q1arjItJX3-gCHwi_06WN4znRz48=
>
>
>
> On Fri, Nov 2, 2018 at 9:09 PM Ron Katriel  wrote:
> >
> > Hi,
> >
> > Is there a BaseX function for converting a string date in the form of
> “March 2017” to xs:date or xs:dateTime?
> >
> > Thanks,
> > Ron
>
>

Re: [basex-talk] Converting a Date

[Joe Wicentowski]

Hi Ron,

You might find Ryan Grimm's date-parser library module useful if you have a
larger range of date formats to handle:


https://github.com/marklogic-community/commons/blob/master/dates/date-parser.xqy

While it was written with some MarkLogic-specific code, I adapted it for
use with eXist (but haven't tested it with BaseX):


https://github.com/HistoryAtState/twitter/blob/master/modules/date-parser.xqm

Best,
Joe

On Fri, Nov 2, 2018 at 6:48 PM Ron Katriel  wrote:

> Hi Christian,
>
> Much appreciated! I hardened the code (see below) since the dates (from
> CT.gov) occasionally also have the day of the month (e.g., “March 21,
> 2014”). Currently the function is dropping the day in such cases but I will
> look into capturing it in a future iteration.
>
> Best,
> Ron
>
>
> declare function local:to-date($string) {
>   if (fn:matches($string, '[A-Za-z]+ [0-9]+') or fn:matches($string,
> '[A-Za-z]+ [0-9]+, [0-9]+'))
>   then
>   let $m := index-of($MONTHS, substring-before($string, ' '))
>   let $y := xs:integer(functx:substring-after-last($string, ' '))
>   return xs:date(string-join(
> (
>   format-number($y, ''),
>   format-number($m, '00'),
>   '01'
> ),
> '-')
>   )
>   else
>   ()
> };
>
> On November 2, 2018 at 4:20:41 PM, Christian Grün (
> christian.gr...@gmail.com) wrote:
>
> Hi Ron,
>
> If your timestamp is available in IETF format, you can use
> fn:parse-ietf-date [1]. Otherwise, you’ll need to write a simple
> function by yourself:
>
> declare variable $MONTHS := (
> 'January', 'February', 'March', 'April', 'May', 'June',
> 'July', 'August', 'September', 'October', 'November', 'December'
> );
>
> declare function local:to-date($string) {
> let $m := index-of($MONTHS, substring-before($string, ' '))
> let $y := xs:integer(substring-after($string, ' '))
> return xs:date(string-join((
> format-number($y, ''),
> format-number($m, '00'),
> '01'
> ), '-'))
> };
> local:to-date('March 2017')
>
> Best,
> Christian
>
> [1]
> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.w3.org_TR_xpath-2Dfunctions-2D31_-23func-2Dparse-2Dietf-2Ddate=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=Yy9sC1xS_Ix-pGSVDp-Lbmz8BOft0S1WdVpEM-qzRw4=uQ3NqCv8FpHulP4q1arjItJX3-gCHwi_06WN4znRz48=
>
>
>
> On Fri, Nov 2, 2018 at 9:09 PM Ron Katriel  wrote:
> >
> > Hi,
> >
> > Is there a BaseX function for converting a string date in the form of
> “March 2017” to xs:date or xs:dateTime?
> >
> > Thanks,
> > Ron
>
>

Re: [basex-talk] Converting a Date

[Ron Katriel]

Hi Christian,

Much appreciated! I hardened the code (see below) since the dates (from
CT.gov) occasionally also have the day of the month (e.g., “March 21,
2014”). Currently the function is dropping the day in such cases but I will
look into capturing it in a future iteration.

Best,
Ron


declare function local:to-date($string) {
  if (fn:matches($string, '[A-Za-z]+ [0-9]+') or fn:matches($string,
'[A-Za-z]+ [0-9]+, [0-9]+'))
  then
  let $m := index-of($MONTHS, substring-before($string, ' '))
  let $y := xs:integer(functx:substring-after-last($string, ' '))
  return xs:date(string-join(
(
  format-number($y, ''),
  format-number($m, '00'),
  '01'
),
'-')
  )
  else
  ()
};

On November 2, 2018 at 4:20:41 PM, Christian Grün (christian.gr...@gmail.com)
wrote:

Hi Ron,

If your timestamp is available in IETF format, you can use
fn:parse-ietf-date [1]. Otherwise, you’ll need to write a simple
function by yourself:

declare variable $MONTHS := (
'January', 'February', 'March', 'April', 'May', 'June',
'July', 'August', 'September', 'October', 'November', 'December'
);

declare function local:to-date($string) {
let $m := index-of($MONTHS, substring-before($string, ' '))
let $y := xs:integer(substring-after($string, ' '))
return xs:date(string-join((
format-number($y, ''),
format-number($m, '00'),
'01'
), '-'))
};
local:to-date('March 2017')

Best,
Christian

[1]
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.w3.org_TR_xpath-2Dfunctions-2D31_-23func-2Dparse-2Dietf-2Ddate=DwIFaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=Yy9sC1xS_Ix-pGSVDp-Lbmz8BOft0S1WdVpEM-qzRw4=uQ3NqCv8FpHulP4q1arjItJX3-gCHwi_06WN4znRz48=



On Fri, Nov 2, 2018 at 9:09 PM Ron Katriel  wrote:
>
> Hi,
>
> Is there a BaseX function for converting a string date in the form of
“March 2017” to xs:date or xs:dateTime?
>
> Thanks,
> Ron

Re: [basex-talk] Converting a Date

[Christian Grün]

Hi Ron,

If your timestamp is available in IETF format, you can use
fn:parse-ietf-date [1]. Otherwise, you’ll need to write a simple
function by yourself:

  declare variable $MONTHS := (
'January', 'February', 'March', 'April', 'May', 'June',
'July', 'August', 'September', 'October', 'November', 'December'
  );

  declare function local:to-date($string) {
let $m := index-of($MONTHS, substring-before($string, ' '))
let $y := xs:integer(substring-after($string, ' '))
return xs:date(string-join((
  format-number($y, ''),
  format-number($m, '00'),
  '01'
), '-'))
  };
  local:to-date('March 2017')

Best,
Christian

[1] https://www.w3.org/TR/xpath-functions-31/#func-parse-ietf-date



On Fri, Nov 2, 2018 at 9:09 PM Ron Katriel  wrote:
>
> Hi,
>
> Is there a BaseX function for converting a string date in the form of “March 
> 2017” to xs:date or xs:dateTime?
>
> Thanks,
> Ron

[basex-talk] Converting a Date

[Ron Katriel]

Hi,

Is there a BaseX function for converting a string date in the form of
“March 2017” to xs:date or xs:dateTime?

Thanks,
Ron

On November 2, 2018 at 2:37:31 PM, Imsieke, Gerrit, le-tex (
gerrit.imsi...@le-tex.de) wrote:

One approach to avoid migration and backwards compatibility issues would
be to support a standard storage and an extended storage side by side.
The storage and query functions would know beforehand which layout
variant the current database is in, and they could use the appropriate
optimized functions.
If dynamic lookup of these layout-specific functions would be too
costly, maybe providing two separate binaries (classic and extended
storage) might be an option. I cannot fathom how many pieces of code
need to be modified in order to be able to maintain a common codebase
for both layouts.
I’m certainly naïve in this regard because back in the days, I thought:
How hard can it be to move from a 16 bit architecture to a 32 bit
architecture?

Gerrit


On 02.11.2018 17:25, Christian Grün wrote:
> Hi Gerrit,
>
> thanks for your generous offer to sponsor the requested feature. I am
> ashamed to confirm it’s been a long time since this issue has been
> opened and not closed yet. You are asking how much money will be
> required to get this fixed. I’m not sure after all. Maybe I would
> rather ask for 3, 4 weeks of “leisure time”, or – even better – get a
> proposal into my hands how this could be resolved without compromising
> backward conformance.
>
> Some more details: The current storage layout per node has been fixed
> to 16 bytes. One byte (8 bits) is reserved for the namespace
> reference. The other 15 bytes (minus a few unused bits) are reserved
> for other references and flags. We could extend the storage to 24 or
> 32 bits. As a result, the central database main table would get
> larger, so this would affect both old databases (that need to be
> imported) and the overall performance of the system. If we decide to
> go this step, we could indeed overcome various of the current
> limitations.
>
> Any volunteers out there who are ready for the challenge?
> Christian
>
>
>
> On Wed, Oct 31, 2018 at 11:40 PM Imsieke, Gerrit, le-tex
>  wrote:
>>
>> Hi Sergei,
>>
>> The corresponding issue will turn 5 next March:
>>
https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_BaseXdb_basex_issues_902=DwIDaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=g71jhvou7ORXyrKJxjN_aKfDjb3cvrDYTUyI9Qoy0EU=ZdZSkALp3UWiMOxwCPZsI3todqdt13fwLXsddRT7AUY=
>>
>> If you are an XML developer who wants to index all the XML, XSLT, XProc,
>> RNG, XSD, Schematron, etc. files on your hard disk in an XML database,
>> chances are that you’ll need more than 256 namespaces.
>>
>> I’m willing to shell out up to 1,200 Euros (plus VAT) out of my own
>> pockets for this feature. Any other funders?
>> Christian, how much do we need to raise collectively for you to
>> prioritize storage layout redesign?
>>
>> Gerrit
>>
>> On 31.10.2018 22:47, Сергей Чесноков wrote:
>>>
>>> Hi all,
>>>
>>> Is it possible to bypass the following restriction (I cannot change
>>> "ep_ins_med_q.xsd" (Central Bank xbrl scheme))?:
>>>
>>> BaseX 9.1
>>>
>>> Command:
>>> CREATE DB bfo
>>> D:/portal/xbrl/CBR/final_1_3_1/Taxonomy_1_3_1/www.cbr.ru/xbrl/bfo/
>>> Error:
>>> "D:/portal/xbrl/CBR/final_1_3_1/Taxonomy_1_3_1/
www.cbr.ru/xbrl/bfo/rep/2018-03-31/ep/ep_ins_med_q.xsd""ep_ins_med_q.xsd"
>>> (Line 21): Too many distinct namespaces (limit: 256).
>>>
>>> Best regards, Sergei.
>>
>> --
>> Gerrit Imsieke
>> Geschäftsführer / Managing Director
>> le-tex publishing services GmbH
>> Weissenfelser Str. 84, 04229 Leipzig, Germany
>> Phone +49 341 355356 110, Fax +49 341 355356 510
>> gerrit.imsi...@le-tex.de,
https://urldefense.proofpoint.com/v2/url?u=http-3A__www.le-2Dtex.de=DwIDaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=g71jhvou7ORXyrKJxjN_aKfDjb3cvrDYTUyI9Qoy0EU=upoMemh2v9_167rcLB2gdyBS2ybHbIgFUvNF6d6FQu0=
>>
>> Registergericht / Commercial Register: Amtsgericht Leipzig
>> Registernummer / Registration Number: HRB 24930
>>
>> Geschäftsführer / Managing Directors:
>> Gerrit Imsieke, Svea Jelonek, Thomas Schmidt

-- 
Gerrit Imsieke
Geschäftsführer / Managing Director
le-tex publishing services GmbH
Weissenfelser Str. 84, 04229 Leipzig, Germany
Phone +49 341 355356 110, Fax +49 341 355356 510
gerrit.imsi...@le-tex.de,
https://urldefense.proofpoint.com/v2/url?u=http-3A__www.le-2Dtex.de=DwIDaQ=fi2D4-9xMzmjyjREwHYlAw=44jDQvzmnB_-ovfO6Iusj0ItciJrcWMOQQwd2peEBBE=g71jhvou7ORXyrKJxjN_aKfDjb3cvrDYTUyI9Qoy0EU=upoMemh2v9_167rcLB2gdyBS2ybHbIgFUvNF6d6FQu0=

Registergericht / Commercial Register: Amtsgericht Leipzig
Registernummer / Registration Number: HRB 24930

Geschäftsführer / Managing Directors:
Gerrit Imsieke, Svea Jelonek, Thomas Schmidt