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s1kd-uom(1) s1kd-tools s1kd-uom(1)
NAME
s1kd-uom - Convert units of measure in quantity data
SYNOPSIS
s1kd-uom [-dflqv,.h?] [-D <fmt>] [-F <fmt>]
[-u <uom> -t <uom> [-e <expr>] [-F <fmt>] ...]
[-s <name>|-S <path> ...] [-U <path>] [-p <fmt> [-P <path>]]
[<object>...]
DESCRIPTION
The s1kd-uom tool converts between specified units of measure in quan‐
tity data, for example, to automatically localize units of measure in
data modules.
OPTIONS
-D, --duplicate-format <fmt>
Specify a custom format for duplicating quantities (-d). The
'%' character acts as a placeholder for the duplicate quantity
value. The default format for -d is equivalent to -D ' (%)'.
-d, --duplicate
When converting, instead of overwriting the original quantity,
include the converted quantity after the original in parenthe‐
sis. For example, "200 mm" when converting mm to in would be‐
come "200 mm (7.87 in)".
-e, --formula <expr>
Specify the formula for a conversion, given as an XPath expres‐
sion.
-F, --format <fmt>
Specify the format for quantity values. When used before -u,
this specifies the default format for all conversions. Other‐
wise, this specifies the format for each individual conversion.
Formats specified for individual conversions override the de‐
fault format set for all conversions.
-f, --overwrite
Overwrite input CSDB objects.
-h, -?, --help
Show help/usage message.
-l, --list
Treat input (stdin or arguments) as lists of filenames of CSDB
objects to list references in, rather than CSDB objects them‐
selves.
-P, --uomdisplay <path>
Use a custom .uomdisplay file.
-p, --preformat <fmt>
Preformat quantity data to the specified decimal format. The
built-in formats are:
· SI - comma for decimal separator, space for grouping
· euro - comma for decimal separator, full-stop for grouping
· imperial - full-stop for decimal separator, comma for grouping
-q, --quiet
Quiet mode. Errors are not printed.
-S, --set <path>
Apply a set of conversions defined in an XML file.
-s, --preset <name>
Apply a set of predefined conversions. The available presets
are:
· SI - convert imperial/US customary units to SI units.
· imperial - convert SI units to British imperial units.
· US - convert SI units to US customary units.
-t, --to <uom>
Unit of measure to convert to.
-U, --uom <path>
Use a custom .uom file.
-u, --from <uom>
Unit of measure to convert from.
-v, --verbose
Verbose output.
-,, --dump-uom
Dump the default .uom file.
-., --dump-uomdisplay
Dump the default .uomdisplay file.
--version
Show version information.
<object>
CSDB objects to convert quantities in.
In addition, the following options allow configuration of the XML pars‐
er:
--dtdload
Load the external DTD.
--huge Remove any internal arbitrary parser limits.
--net Allow network access to load external DTD and entities.
--noent
Resolve entities.
--parser-errors
Emit errors from parser.
--parser-warnings
Emit warnings from parser.
--xinclude
Do XInclude processing.
--xml-catalog <file>
Use an XML catalog when resolving entities. Multiple catalogs
may be loaded by specifying this option multiple times.
.uom file
This file contains the rules for converting units of measure. If no
specific conversions are given with the -u and -t options, this file
also acts as a list of all conversions to perform.
By default, the program will search the current directory and parent
directories for a file named .uom, but any file can be specified by us‐
ing the -U option.
Example of a .uom file:
<uom>
<convert from="degF" to="degC" formula="($value - 32) * (5 div 9)"/>
<convert from="in" to="cm" formula="$value * 2.54"/>
<convert from="lbm" to="kg" formula="$value div 2.205"/>
</uom>
The tool contains a default set of rules for common units of measure.
This can be used to create a default .uom file by use of the -, option:
$ s1kd-uom -, > .uom
To select only certain common rules when generating a .uom file, the -u
and -t options can be used:
$ s1kd-uom -, -u in -t cm -u degF -t degC > .uom
This will generate a .uom file containing rules to convert inches to
centimetres, and degrees Fahrenheit to degrees Celsius.
The same file format is used with the -S option to specify a set of
conversions to perform. In this case, the attribute formula is option‐
al, as the default formula or the formula in the .uom file will be used
if it is not specified.
Conversion formula variables (-e)
When specifying a formula for conversion, the following variables can
be used:
$pi The constant π
$value The original quantity value
For example, the formula to convert degrees to radians can be given as
follows:
$value * ($pi div 180)
Preformatting UOMs (-p) and the .uomdisplay file
The tool can also convert semantic quantity data to presentation quan‐
tity data. The -p option specifies which conventions to use for for‐
matting quantity values. For example:
<para>Tighten the
<quantity>
<quantityGroup>
<quantityValue quantityUnitOfMeasure="cm">6.35</quantityValue>
</quantityGroup>
</quantity>
bolt.</para>
$ s1kd-uom -p SI <DM>
<para>Tighten the 6,35 cm bolt.</para>
This can also be combined with UOM conversions:
$ s1kd-uom -u cm -t in -p imperial <DM>
<para>Tighten the 2.5 in bolt.</para>
Custom formats for values or UOMs can be defined in the .uomdisplay
file. By default, the tool will search the current directory and par‐
ent directories for a file named .uomdisplay, but any file can be spec‐
ified by using the -P option.
Example of a .uomdisplay file:
<uomDisplay>
<format name="custom" decimalSeparator="," groupingSeparator="."/>
<uoms>
<uom name="cm"> cm</uom>
<uom name="cm2"> cm<superScript>2</superScript></uom>
</uoms>
<currencies>
<currency name="CAD">
<prefix>$</prefix>
<postfix> CAD</postfix>
</currency>
<currency name="GBP">
<prefix>£</prefix>
<postfix> GBP</postfix>
</currency>
</currencies>
</uomDisplay>
Units of measure and currencies that are not defined will be presented
as their name (e.g., "cm2") separated from the value by a space.
More complex UOM display, such as pluralization of units of measure,
can be accomplished with embedded XSLT in the .uomdisplay file:
<uoms
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:variable name="value" select="parent::*/>
<uom name="in">
<xsl:text> </xsl:text>
<xsl:choose>
<xsl:when test="$value = 1">inch</xsl:when>
<xsl:otherwise>inches</xsl:otherwise>
</xsl:choose>
</uom>
<uom name="ft">
<xsl:text> </xsl:text>
<xsl:choose>
<xsl:when test="$value = 1">foot</xsl:when>
<xsl:otherwise>feet</xsl:otherwise>
</xsl:choose>
</uom>
</uoms>
The context for the embedded XSLT is the unit of measure attribute on
the value, tolerance or group. XSLT elements in the <uoms> element
will be processed for all units of measure, while XSLT elements in
<uom> elements will only apply to an individual unit of measure.
The tool contains a default set of formats and displays. These can be
used to create a default .uomdisplay file by use of the -. option:
$ s1kd-uom -. > .uomdisplay
EXAMPLES
Common units of measure
Input:
<quantity>
<quantityGroup>
<quantityValue quantityUnitOfMeasure="cm">15</quantityValue>
</quantityGroup>
</quantity>
Command:
$ s1kd-uom -u cm -t in <DM>
Output:
<quantity>
<quantityGroup>
<quantityValue quantityUnitOfMeasure="in">5.91</quantityValue>
</quantityGroup>
</quantity>
Using a custom formula and format
Input:
<quantity
quantityType="qty02"
quantityTypeSpecifics="CAD">10.00</quantity>
Command:
$ s1kd-uom -u CAD -t USD -e '$value div 1.31' -F '0.00'
Output:
<quantity
quantityType="qty02"
quantityTypeSpecifics="USD">7.36</quantity>
UOM FILE SCHEMA
UOM
Markup element: <uom>
Attributes:
· format (O), the number format for all rules.
Child elements:
· <convert>
Conversion rule
The element <convert> defines a rule to convert one unit of measure to
another.
Markup element: <convert>
Attributes:
· format (O), the number format for this specific rule.
· formula (M), the expression used to convert the quantity value.
· from (M), unit of measure to convert from.
· to (M), unit of measure to convert to.
Child elements:
· None
UOMDISPLAY FILE SCHEMA
UOM display
Markup element: <uomDisplay>
Attributes:
· None
Child elements:
· <format>
· <groupTypePrefixes>
· <wrapInto>
· <uoms>
· <currencies>
Quantity value format
Markup element: <format>
Attributes:
· name (M), the name of the format
· decimalSeparator (M), the decimal separator
· groupingSeparator (M), the grouping separator
Child elements:
· None
Group type prefixes
The element <groupTypePrefixes> specifies prefixes which are added for
specific group types.
Markup element: <groupTypePrefixes>
Attributes:
· None
Child elements:
· <nominal>, text placed before a nominal group.
· <minimum>, text placed before a minimum group.
· <minimumRange>, text placed before a minimum group that is followed
by a maximum group to specify a range.
· <maximum>, text placed before a maximum group.
· <maximumRange>, text placed before a maximum group that is preceded
by a minimum group to specify a range.
Wrap into element
Markup element: <wrapInto>
Attributes:
· None
Child elements:
The element <wrapInto> contains one child element of any type, which
quantities will be wrapped in to after formatting.
Units of measure
Markup element: <uoms>
Attributes:
· None
Child elements:
· <uom>
The element <uoms> may also contain arbitrary XSLT elements which will
be processed for all units of measure.
Display of a unit of measure
Markup element: <uom>
Attributes:
· name (M), the name of the UOM.
Child elements:
The element <uom> may contain mixed content, which will be used for the
display of the unit of measure. This can include XSLT elements, which
allows for handling complex cases of UOM display, such as pluraliza‐
tion.
Currencies
Markup element: <currencies>
Attributes:
· None
Child elements:
· <currency>
The element <currencies> may also contain arbitrary XSLT elements which
will be processed for all currencies.
Display of a currency
Markup element: <currency>
Attributes:
· name (M), the name of the currency.
Child elements:
· <prefix>, text placed before the currency value.
· <postfix>, text placed after the currency value.
The child elements of <currency> may contain mixed content, which will
be used for the display of the unit of measure. This can include XSLT
elements, which allows for handling complex cases of currency display.
AUTHORS
khzae.net.
2021-04-16 s1kd-uom(1)
gopher://khzae.net/0/s1000d/s1kd-tools/docs/publishing/s1kd-uom.txt