Conditions
@cascade
one or more parameters of any type
can return any type
Returns the first parameter that is not equal to nothing.
For example, @cascade(#employee^last-name, #employee^first-name) would result in the value assigned to #employee^last-name if that datafield was effectively assigned some value. If no value is assigned to #employee^last-name, then the value assigned to #employee^first-name would be returned. If no value would be assigned to that datafield either, then the result would be nothing.
@cycle
parameters:
a datafield
a concatenation of test-values and result-values
runs through the test-values and returns the first result-value for which the test-value is equal to the value of the datafield
For example, @case(#employee^first-name, "Charlie", "Brown", "Bart", "Simpson") will return “Simpson” if the current value of the employee’s first name happens to be “Bart”.
@explain
parameters:
first parameter: a textual explanation for the end-user of the condition in the second parameter
second parameeter: a condition
This function is exclusively intended to clarify the Uncover functionality, particularly for complex conditions.
For example, assume you have the following snippet of text:
The first condition is somewhat complex due to the OR parameter. When visualised in the browser through the Misc > Uncover function (or in a DOCX through the Uncovered export), this results in the following explanation:
This technical breakdown is very helpful for the author of the clause. However, from the perspective of the end-user, this feels very unfriendly.
The @explain function can be a solution. It can be wrapped around the condition, to provide an end-user explanation of what the condition is really going on:
This will then result in a clean explanation in the browser and in the DOCX generated by the Uncovered export:
Things can easily get more complex when combining conditions, particularly when invoking special functions, because those are difficult to explain towards a non-technical audience. For example,
will result in the following complicated bullets, for which an @explain would really be helpful towards the end-user.
@if
first parameter: a true/false value
second and third parameter: any kind of value
Returns the second parameter if the first parameter is true, otherwise returns the third parameter.
This function can be used to create conditions within a parameter list, which can come in handy to avoid overly complex nesting of { … } conditions.
Examples:
@if(5 > 4, "alpha", "beta")will result in alpha@if(#contract^value > 100, "large value", "low value")will result in “large value” when the datafield #contract^value is higher than 100, otherwise it will result in “low value”
@implemented
parameter: #concept or §cross-tag
returns true or false
see also: @assigned, @implemented-all and @implemented-any
Returns true if the specified #concept or §cross-tag is implemented in the document, i.e. if some clause is present that textually represents this concept or cross-tag. (This will technically be the case when some clause contains an “implements” link towards the concept, respectively contains that cross-tag.)
Tip: you can easily invert the behaviour of this special function: not(@implemented(#concept)) will return true if clause is currently implementing that concept.
@implemented-all
parameters: one or more #concepts or §cross-tags
returns
trueorfalsesee also: @assigned, @implemented and @implemented-any
Returns true if all of the #concepts or §cross-tags mentioned as parameters have been implemented. Returns false if @implemented is false for any of those.
Tip: you can easily invert the behaviour of this special function: not(@implemented-all(#employee, #contract, #started)) will return true if any of those three concepts is not implemented by a clause.
@implemented-any
parameters: one or more #concepts or §cross-tags
returns
trueorfalsesee also: @assigned, @implemented and @implemented-all
Returns true if any of the concepts of §cross-tags mentioned as parameters have been implemented. Returns false if @implemented is false for all of those.
Tip: you can easily invert the behaviour of this special function: not(@implemented-any(#employee, #contract, #started)) will return true if none of those three concepts is implemented by a clause.
@in-browser
no parameters
returns
trueorfalsesee also: @in-pdf and @in-docx
Returns true if the clause/document/binder is shown on the screen (within the browser); returns false if it is being exported by the server.
The most interesting use case for this function is to allow you to only show a certain element (e.g., an introductory paragraph) on the screen, or instead only in the PDF/DOCX output.
Tip: you can easily invert the behaviour of this special function: not(@in-browser) will return true when generating PDF/DOCX input.
@in-pdf
no parameters
returns
trueorfalsesee also: @in-browser and @in-docx
Returns true if the clause/document/binder is being exported to a PDF-file by the server (as opposed to being shown on the screen (within the browser), or being exported to DOCX).
The most interesting use case for this function is to allow you to only show a certain element (e.g., an introductory paragraph) in the PDF-file.
Note that this function will currently not take into account the browser-side export to PDF.
@in-docx
no parameters
returns
trueorfalsesee also: @in-browser and @in-pdf
Returns true if the clause/document/binder is being exported to a DOCX-file by the server (as opposed to being shown on the screen (within the browser), or being exported to PDF).
The most interesting use case for this function is to allow you to only show a certain element (e.g., an introductory paragraph) in the DOCX-file.
Note that this function will currently not take into account the browser-side export to DOCX.
@lookup
parameters:
value to lookup
source-field (of type repeating-field)
target-field (of type repeating-field)
returns the value of the target-field that corresponds to the value to lookup, otherwise null
For example, assume you have a repeating-list #xxx^first-names and another repeating-list #xxx^last-names. @lookup("Daniel", #xxx^first-names, #xxx^last-names) will then result in the last name of Daniel (if found)
@one-else
first parameter: a whole number (or a duration, for which the number will then be extracted)
second and third parameter: text
returns text
see also: @one-else-nr
Returns the second parameter if the first parameter is equal to 1 or -1. In all other cases, returns the third parameter.
This function is typically used as a shortcut form — see the examples below.
Examples:
@one-else(1, "unit", "units")will result in “unit”. It would be similar to writing {#some^datafield = 1: unit | else: units}@one-else(3, "unit", "units")will result in “units”
@one-else-nr
first parameter: a whole number (or a duration, for which the number will then be extracted)
second and third parameter :text
returns the number, followed by the text
see also: @one-else
Returns the number, followed by:
the second parameter if the first parameter is equal to 1 or -1;
in all other cases, returns the third parameter.
This function is typically used as a shortcut form — see the examples below.
Examples:
@one-else-nr(1, "unit", "units")will result in “1 unit”. It would be similar to writing {#some^datafield = 1: 1 unit | else: #some^datafield units}@one-else-nr(3, "unit", "units")will result in “3 units”
@ref-if
parameter: #concept
returns a reference, or nothing
see also: @implemented @refs-if-and @refs-if-or
Returns a reference if the concept is implemented, otherwise results in nothing. Calling @ref-if(#concept) is largely similar to calling {@implemented(#concept): §#concept}, but will not result in an error message if the concept would happen to not be implemented.
@shrink-level
no parameters
returns the current shrinking-level as a number (0 if no shrinking applies, otherwise 1 to 4)
This special function is most relevant to disable/enable clauses based on the shrinking level that happens to apply. For example, inserting @shrinking-level > 2 would case a certain clause to only be shown when the shrinking level is 3 or 4.
@silence
single parameter: any type
results in either null, or the original parameter
Returns null when its single parameter is (or results in) an error. Otherwise just returns the parameter unchanged.
As suggested by its name, you can use this function to remove error-messages you are not interested in seeing for some reason.
@switch
parameters: a concatenation of tests and values
returns the first value for which the test is successful
For example, @switch(1 > 3, "one is greater than three", 2 > 20, "two is greater than twenty", ("alpha" = "alpha"), "alpha is equal to alpha") will return “alpha is equal to alpha”.
@when
parameters: a test-expression and a value
returns the value if the test-expression evaluates to true
For example, @when(1 > 0, "one is greater than zero") will return “one is greater than zero”, while @when(1 > 10, “one is greater than ten”) will return nothing.
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