LIBEXSLT(3) Library Functions Manual LIBEXSLT(3) # [NAME](#NAME) libexslt - extension library for XSLT # [SYNOPSIS](#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](#DESCRIPTION) The **libexslt** library is used to provide extensions to XSLT functions. These extensions come from the EXSLT project <http://www.exslt.org/> # [USAGE](#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)](/man/os/libxslt/libxslt.3) you must call the appropriate 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](#COMMON) [Namespace: http://exslt.org/common](#Namespace:) [See http://www.exslt.org/exsl/index.html for a description.](#See) [**node-set()**](#node-set%28%29) convert the given RTF into a node-set. [**object-type()**](#object-type%28%29) returns the type of the given argument. [**document**](#document) Create multiple output documents. See http://www.exslt.org/exsl/elements/document/index.html ## [MATH](#MATH) [Namespace: http://exslt.org/math](#Namespace:~2) [See http://www.exslt.org/math/index.html for a description.](#See~2) [**min()**](#min%28%29) returns the minimum value of the given node-set [**max()**](#max%28%29) returns the maximum value of the given node-set [**highest()**](#highest%28%29) returns the nodes in the node-set whose value is the maximum value for the node-set. [**lowest()**](#lowest%28%29) returns the nodes in the node-set whose value is the minimum value for the node-set. [**constant()**](#constant%28%29) 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()**](#random%28%29) returns a random number between 0 and 1 inclusive. [**abs()**](#abs%28%29) returns the absolute value of the argument. [**sqrt()**](#sqrt%28%29) returns the square root of the argument. [**power()**](#power%28%29) returns the power base and power arguments. [**log()**](#log%28%29) returns the natural log of the argument. [**sin()**](#sin%28%29) returns the sine of the argument. [**cos()**](#cos%28%29) returns the cosine of the argument. [**tan()**](#tan%28%29) returns the tangent of the argument. [**asin()**](#asin%28%29) returns the arc sine of the argument. [**acos()**](#acos%28%29) returns the arc cosine of the argument. [**atan()**](#atan%28%29) returns the arc tangent of the argument. [**atan2()**](#atan2%28%29) returns the arc tangent function of the y/x arguments. [**exp()**](#exp%28%29) returns the exponential function of the argument. ## [SETS](#SETS) [Namespace: http://exslt.org/sets](#Namespace:~3) [See http://www.exslt.org/set/index.html for a description.](#See~3) [**difference()**](#difference%28%29) returns the difference between the two given node-sets. [**intersection()**](#intersection%28%29) returns a node-set of the nodes within both given node-sets. [**distinct()**](#distinct%28%29) returns a node-set of all nodes in the first argument that are not in the seconds argument. [**has-same-node()**](#has-same-node%28%29) returns TRUE if there is an intersection between the two given node-sets. [**leading()**](#leading%28%29) returns a node-set of all nodes in the first argument that precede the first node in the second argument. [**trailing()**](#trailing%28%29) returns a node-set of all nodes in the first argument that follow the first node in the second argument. ## [DATES and TIMES](#DATES_and_TIMES) [Namespace: http://exslt.org/dates-and-times](#Namespace:~4) [See http://www.exslt.org/date/date.html for a description.](#See~4) [**date-time()**](#date-time%28%29) returns the current date and time as a date/time string. [**date()**](#date%28%29) returns the date specified in the given date/time string. [**time()**](#time%28%29) returns the time specified in the date/time string given as the argument. [**year()**](#year%28%29) returns the year of a date as a number. [**leap-year()**](#leap-year%28%29) returns true if the year given in a date is a leap year. [**month-in-year()**](#month-in-year%28%29) returns the month of a date as a number. [**month-name()**](#month-name%28%29) returns the full name of the month of a date. [**month-abbreviation()**](#month-abbreviation%28%29) returns the abbreviation of the month of a date. [**week-in-year()**](#week-in-year%28%29) returns the week of the year as a number. [**week-in-month()**](#week-in-month%28%29) returns the week in a month of a date as a number. [**day-in-year()**](#day-in-year%28%29) returns the month of a date as a number. [**day-in-month()**](#day-in-month%28%29) returns the day of a date as a number. [**day-of-week-in-month()**](#day-of-week-in-month%28%29) returns the day-of-the-week in a month of a date as a number. [**day-in-week()**](#day-in-week%28%29) returns the day of the week given in a date as a number. [**day-name()**](#day-name%28%29) returns the full name of the day of the week of a date. [**day-abbreviation()**](#day-abbreviation%28%29) returns the abbreviation of the day of the week of a date. [**hour-in-day()**](#hour-in-day%28%29) returns the hour of the day as a number. [**minute-in-hour()**](#minute-in-hour%28%29) returns the minute of the hour as a number. [**second-in-minute()**](#second-in-minute%28%29) returns the second of the minute as a number. [**seconds()**](#seconds%28%29) returns the number of seconds specified by the argument string. [**add()**](#add%28%29) returns the date/time resulting from adding a duration to a date/time. [**add-duration()**](#add-duration%28%29) returns the duration resulting from adding two given durations together. [**difference()**](#difference%28%29~2) returns the duration between the first date and the second date. [**duration()**](#duration%28%29) returns a duration string that represents the given number of seconds since 1970-01-01T00:00:00. ## [STRINGS](#STRINGS) [Namespace: http://exslt.org/strings](#Namespace:~5) [See http://www.exslt.org/str/index.html for a description.](#See~5) [**tokenize()**](#tokenize%28%29) returns a node set of token elements, each containing one token from the string. [**padding()**](#padding%28%29) returns a string padded to a certain length. [**align()**](#align%28%29) returns a string aligned within another string. [**concat()**](#concat%28%29) returns the concatenation of the string values of the nodes in that node set. ## [FUNCTIONS](#FUNCTIONS) [Namespace: http://exslt.org/functions](#Namespace:~6) [See http://www.exslt.org/func/index.html for a description.](#See~6) [**function**](#function) declares an extension function. [**result**](#result) returns the result of an extension function declared in function(). # [FILES](#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](#AUTHORS) Manual page by Heiko W. Rupp (hwr@pilhuhn.de) # [SEE ALSO](#SEE_ALSO) [**libxml**(3)](/man/os/libxslt/libxml.3), [**libxslt**(3)](/man/os/libxslt/libxslt.3), [**xmllint**(1)](/man/os/libxslt/xmllint.1) [**xsltproc**(1)](/man/os/libxslt/xsltproc.1), 04 November 2003 libxslt --- Document: libexslt(3) from libxslt 1.1.45-r4 (Chainguard OS) Source: https://gitlab.gnome.org/GNOME/libxslt.git