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Kovid Goyal 2020-10-03 18:36:12 +05:30
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manual/template_lang.rst
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@ -403,7 +403,7 @@ Program mode also supports the classic relational (comparison) operators: ``==``
* ``program: if or(field('series') == 'foo', field('series') == '1632') then 'yes' else 'no' fi`` returns 'yes' if series is either 'foo' or '1632', otherwise 'no'.
* ``program: if '11' > '2' then 'yes' else 'no' fi`` returns 'no' because it is doing a lexical comparison. If you want numeric comparison instead of lexical comparison, use the operators ``==#``, ``!=#``, ``<#``, ``<=#``, ``>#``, ``>=#``. In this case the left and right values are set to zero if they are undefined or the empty string. If they are not numbers then an error is raised.
General Program Mode support saving General Program Mode templates and calling those templates from another template. You save
General Program Mode supports saving General Program Mode templates and calling those templates from another template. You save
templates using :guilabel:`Preferences->Advanced->Template functions`. More information is provided in that dialog. You call
a template the same way you call a function, passing positional arguments if desired. An argument can be any expression.
Examples of calling a template, assuming the stored template is named ``foo``:
@ -420,7 +420,7 @@ If the corresponding parameter is not provided in the call then ``arguments`` gi
Examples, again assuming the stored template is named ``foo``:
* ``foo('#myseries')`` -- argument``key`` will have the value ``myseries`` and the argument ``alternate`` will have the value ``series``.
* ``foo('#myseries')`` -- argument ``key`` will have the value ``myseries`` and the argument ``alternate`` will have the value ``series``.
* ``foo('series', '#genre')`` the variable ``key`` is assigned the value ``series`` and the variable ``alternate`` is assigned the value ``#genre``.
* ``foo()`` -- the variable ``key`` is assigned the empty string and the variable ``alternate`` is assigned the value ``#genre``.