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Kovid Goyal 2020-10-17 13:45:23 +05:30
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2
Changelog.yaml
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@ -26,7 +26,7 @@
new features: new features:
- title: "Tag browser: When grouping items by first letter if adjacent letters have few entries combine them into a single group." - title: "Tag browser: When grouping items by first letter if adjacent letters have few entries combine them into a single group."
description: "Can be controlled via an option in Preferences->Look & fee->Tag browser to combine 'first letters' together if there are a small number of items under adjacent letters" description: "Can be controlled via an option in Preferences->Look & feel->Tag browser to combine 'first letters' together if there are a small number of items under adjacent letters"
- title: "Viewer: Allow displaying the current page / total pages in the header/footer. Useful in paged mode to see exactly how many pages are left." - title: "Viewer: Allow displaying the current page / total pages in the header/footer. Useful in paged mode to see exactly how many pages are left."
tickets: [1899163] tickets: [1899163]

9
manual/template_lang.rst
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@ -433,7 +433,7 @@ of programming language bits. For example, the value of the column is always pas
to a function included in the template. SFM also doesn't support the difference between variables to a function included in the template. SFM also doesn't support the difference between variables
and strings; all values are strings. and strings; all values are strings.
Example: the following SFM template returns either the series name of the string "no series":: Example: the following SFM template returns either the series name or the string "no series"::
{series:ifempty(no series)} {series:ifempty(no series)}
@ -442,14 +442,15 @@ The equivalent templates in TPM and GPM are::
TPM: ``{series:'ifempty($, 'no series')'} TPM: ``{series:'ifempty($, 'no series')'}
GPM: ``program: ifempty(field('series'), 'no series')`` GPM: ``program: ifempty(field('series'), 'no series')``
The first argument to ifempty is the value of the field ``series`` and the second argument The first argument to ``ifempty`` is the value of the field ``series`` and the second argument
is the string ``no series``. In SFM the first argument, the value, is automatically passed (the invisible argument). is the string ``no series``. In SFM the first argument, the value,
is automatically passed (the invisible argument).
Several template functions, for example ``booksize()`` and ``current_library_name()``, take no arguments. Several template functions, for example ``booksize()`` and ``current_library_name()``, take no arguments.
Because of the 'invisible argument' you cannot use these functions in SFM. Because of the 'invisible argument' you cannot use these functions in SFM.
Nested functions, where a function calls another function to compute an argument, cannot be used in SFM. Nested functions, where a function calls another function to compute an argument, cannot be used in SFM.
For example this template, intended to return the the first 5 characters of the series value uppercased, won't work in SFM:: For example this template, intended to return the first 5 characters of the series value uppercased, won't work in SFM::
{series:uppercase(substr(0,5))} {series:uppercase(substr(0,5))}