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Template language: Add a current_library_name() function that can be used to return the name of the currently opened library in calibre

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Kovid Goyal 2012-02-16 15:48:25 +05:30
commit 8cc4134f06
2 changed files with 14 additions and 0 deletions
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1
src/calibre/manual/template_lang.rst
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@ -242,6 +242,7 @@ The following functions are available in addition to those described in single-f
* ``assign(id, val)`` -- assigns val to id, then returns val. id must be an identifier, not an expression * ``assign(id, val)`` -- assigns val to id, then returns val. id must be an identifier, not an expression
* ``booksize()`` -- returns the value of the |app| 'size' field. Returns '' if there are no formats. * ``booksize()`` -- returns the value of the |app| '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``. * ``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()'}``.
* ``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. * ``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. * ``divide(x, y)`` -- returns x / y. Throws an exception if either x or y are not numbers.
* ``field(name)`` -- returns the metadata field named by ``name``. * ``field(name)`` -- returns the metadata field named by ``name``.

13
src/calibre/utils/formatter_functions.py
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@ -1106,9 +1106,22 @@ class BuiltinLanguageCodes(BuiltinFormatterFunction):
pass pass
return ', '.join(retval) return ', '.join(retval)
class BuiltinCurrentLibraryName(BuiltinFormatterFunction):
name = 'current_library_name'
arg_count = 0
category = 'Get values from metadata'
__doc__ = doc = _('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()\'}".')
def evaluate(self, formatter, kwargs, mi, locals):
from calibre.library import current_library_name
return current_library_name()
_formatter_builtins = [ _formatter_builtins = [
BuiltinAdd(), BuiltinAnd(), BuiltinAssign(), BuiltinBooksize(), BuiltinAdd(), BuiltinAnd(), BuiltinAssign(), BuiltinBooksize(),
BuiltinCapitalize(), BuiltinCmp(), BuiltinContains(), BuiltinCount(), BuiltinCapitalize(), BuiltinCmp(), BuiltinContains(), BuiltinCount(),
BuiltinCurrentLibraryName(),
BuiltinDaysBetween(), BuiltinDivide(), BuiltinEval(), BuiltinDaysBetween(), BuiltinDivide(), BuiltinEval(),
BuiltinFirstNonEmpty(), BuiltinField(), BuiltinFormatDate(), BuiltinFirstNonEmpty(), BuiltinField(), BuiltinFormatDate(),
BuiltinFormatNumber(), BuiltinFormatsModtimes(), BuiltinFormatsSizes(), BuiltinFormatNumber(), BuiltinFormatsModtimes(), BuiltinFormatsSizes(),