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manual/template_lang.rst
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@ -244,7 +244,7 @@ The following functions are available in addition to those described in single-f
* ``booksize()`` -- returns the value of the calibre 'size' field. Returns '' if there are no formats.
* ``cmp(x, y, lt, eq, gt)`` -- compares x and y after converting both to numbers. Returns ``lt`` if x < y. Returns ``eq`` if x == y. Otherwise returns ``gt``.
* ``current_library_name()`` -- return the last name on the path to the current calibre library. This function can be called in template program mode using the template ``{:'current_library_name()'}``.
* ``current_library_path()`` -- return the path to the current calibre library. This function can be called in template program mode using the template ``{:'current_library_path()'}``..
* ``current_library_path()`` -- return the path to the current calibre library. This function can be called in template program mode using the template ``{:'current_library_path()'}``.
* ``days_between(date1, date2)`` -- return the number of days between ``date1`` and ``date2``. The number is positive if ``date1`` is greater than ``date2``, otherwise negative. If either ``date1`` or ``date2`` are not dates, the function returns the empty string.
* ``divide(x, y)`` -- returns x / y. Throws an exception if either x or y are not numbers.
* ``eval(string)`` -- evaluates the string as a program, passing the local variables (those ``assign`` ed to). This permits using the template processor to construct complex results from local variables. Because the `{` and `}` characters are special, you must use `[[` for the `{` character and `]]` for the '}' character; they are converted automatically. Note also that prefixes and suffixes (the `|prefix|suffix` syntax) cannot be used in the argument to this function when using template program mode.