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LIBEXSLT(3)                           Library Functions Manual                           LIBEXSLT(3)



NAME
       libexslt - extension library for XSLT

SYNOPSIS
       #include <libexslt/exslt.h>

       void exsltCommonRegister(void);
       void exsltDateRegister(void);
       void exsltDynRegister(void);
       void exsltFuncRegister(void);
       void exsltMathRegister(void);
       void exsltSetsRegister(void);
       void exsltStrRegister(void);
       void exsltRegisterAll(void);
       void exsltSaxonRegister(void);

DESCRIPTION
       The  libexslt  library is used to provide extensions to XSLT functions. These extensions come
       from the EXSLT project <http://www.exslt.org/>

USAGE
       To make use of these functions in XSLT the appropriate  namespace  must  be  defined  on  the
       xsl:stylesheet element.  To enable support for them in libxslt(3) you must call the appropri‐
       ate functions (listed in the SYNOPSIS section) to register the extensions.   The  xslt-config
       shell script can be used to obtain the necessary flags for the pre-processor and linker.  The
       supported extensions are:

   COMMON
       Namespace: http://exslt.org/common

       See http://www.exslt.org/exsl/index.html for a description.

       node-set()            convert the given RTF into a node-set.

       object-type()         returns the type of the given argument.

       document              Create multiple output  documents.  See  http://www.exslt.org/exsl/ele‐
                             ments/document/index.html


   MATH
       Namespace: http://exslt.org/math

       See http://www.exslt.org/math/index.html for a description.

       min()                 returns the minimum value of the given node-set

       max()                 returns the maximum value of the given node-set

       highest()             returns  the nodes in the node-set whose value is the maximum value for
                             the node-set.

       lowest()              returns the nodes in the node-set whose value is the minimum value  for
                             the node-set.

       constant()            returns  a number value of the given constant with the given precision.
                             The constants are PI, E, SQRRT2, LN2, LN10, LOG2E, and SQRT1_2.

       random()              returns a random number between 0 and 1 inclusive.

       abs()                 returns the absolute value of the argument.

       sqrt()                returns the square root of the argument.

       power()               returns the power base and power arguments.

       log()                 returns the natural log of the argument.

       sin()                 returns the sine of the argument.

       cos()                 returns the cosine of the argument.

       tan()                 returns the tangent of the argument.

       asin()                returns the arc sine of the argument.

       acos()                returns the arc cosine of the argument.

       atan()                returns the arc tangent of the argument.

       atan2()               returns the arc tangent function of the y/x arguments.

       exp()                 returns the exponential function of the argument.


   SETS
       Namespace: http://exslt.org/sets

       See http://www.exslt.org/set/index.html for a description.

       difference()          returns the difference between the two given node-sets.

       intersection()        returns a node-set of the nodes within both given node-sets.

       distinct()            returns a node-set of all nodes in the first argument that are  not  in
                             the seconds argument.

       has-same-node()       returns  TRUE  if  there is an intersection between the two given node-
                             sets.

       leading()             returns a node-set of all nodes in the first argument that precede  the
                             first node in the second argument.

       trailing()            returns  a  node-set of all nodes in the first argument that follow the
                             first node in the second argument.


   DATES and TIMES
       Namespace: http://exslt.org/dates-and-times

       See http://www.exslt.org/date/date.html for a description.

       date-time()           returns the current date and time as a date/time string.

       date()                returns the date specified in the given date/time string.

       time()                returns the time specified in the date/time string given as  the  argu‐
                             ment.

       year()                returns the year of a date as a number.

       leap-year()           returns true if the year given in a date is a leap year.

       month-in-year()       returns the month of a date as a number.

       month-name()          returns the full name of the month of a date.

       month-abbreviation()  returns the abbreviation of the month of a date.

       week-in-year()        returns the week of the year as a number.

       week-in-month()       returns the week in a month of a date as a number.

       day-in-year()         returns the month of a date as a number.

       day-in-month()        returns the day of a date as a number.

       day-of-week-in-month()
                             returns the day-of-the-week in a month of a date as a number.

       day-in-week()         returns the day of the week given in a date as a number.

       day-name()            returns the full name of the day of the week of a date.

       day-abbreviation()    returns the abbreviation of the day of the week of a date.

       hour-in-day()         returns the hour of the day as a number.

       minute-in-hour()      returns the minute of the hour as a number.

       second-in-minute()    returns the second of the minute as a number.

       seconds()             returns the number of seconds specified by the argument string.

       add()                 returns the date/time resulting from adding a duration to a date/time.

       add-duration()        returns  the  duration  resulting  from  adding two given durations to‐
                             gether.

       difference()          returns the duration between the first date and the second date.

       duration()            returns a duration string that represents the given number  of  seconds
                             since 1970-01-01T00:00:00.


   STRINGS
       Namespace: http://exslt.org/strings

       See http://www.exslt.org/str/index.html for a description.

       tokenize()            returns  a  node  set of token elements, each containing one token from
                             the string.

       padding()             returns a string padded to a certain length.

       align()               returns a string aligned within another string.

       concat()              returns the concatenation of the string values of  the  nodes  in  that
                             node set.


   FUNCTIONS
       Namespace: http://exslt.org/functions

       See http://www.exslt.org/func/index.html for a description.

       function              declares an extension function.

       result                returns the result of an extension function declared in function().

FILES
       /usr/bin/xslt-config
              shell script giving pre-processor and linker flags.

       /usr/lib/libexslt.a
              static library

       /usr/lib/libexslt.so
              sharable library

AUTHORS
       Manual page by Heiko W. Rupp (hwr AT pilhuhn.de)

SEE ALSO
       libxml(3), libxslt(3), xmllint(1) xsltproc(1),



libxslt                                   04 November 2003                               LIBEXSLT(3)