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Only translate function category names once

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Kovid Goyal 2024-11-21 08:02:37 +05:30
parent 681c50ed08
commit 4fe4823dc7
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2 changed files with 132 additions and 116 deletions
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3
src/calibre/gui2/dialogs/template_dialog.py
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@ -45,8 +45,7 @@ from calibre import sanitize_file_name
from calibre.constants import config_dir, iswindows
from calibre.ebooks.metadata.book.base import Metadata
from calibre.ebooks.metadata.book.formatter import SafeFormat
from calibre.gui2 import (choose_files, choose_save_file, error_dialog, gprefs, info_dialog,
pixmap_to_data, question_dialog, safe_open_url)
from calibre.gui2 import choose_files, choose_save_file, error_dialog, gprefs, info_dialog, pixmap_to_data, question_dialog, safe_open_url
from calibre.gui2.dialogs.template_dialog_ui import Ui_TemplateDialog
from calibre.gui2.dialogs.template_general_info import GeneralInformationDialog
from calibre.gui2.widgets2 import Dialog, HTMLDisplay

245
src/calibre/utils/formatter_functions.py
View File

@ -39,6 +39,23 @@ from calibre.utils.localization import calibre_langcode_to_name, canonicalize_la
from calibre.utils.titlecase import titlecase
from polyglot.builtins import iteritems, itervalues
UNKNOWN = _('Unknown')
RELATIONAL = _('Relational')
STRING_MANIPULATION = _('String manipulation')
IF_THEN_ELSE = _('If-then-else')
ARITHMETIC = _('Arithmetic')
RECURSION = _('Recursion')
OTHER = _('Other')
LIST_MANIPULATION = _('List manipulation')
LIST_LOOKUP = _('List lookup')
GET_FROM_METADATA = _('Get values from metadata')
ITERATING_VALUES = _('Interate over values')
BOOLEAN = _('Boolean')
FORMATTING_VALUES = _('Formatting values')
CASE_CHANGES = _('Case changes')
DATE_FUNCTIONS = _('Date functions')
DB_FUNCS = _('Database functions')
# Class and method to save an untranslated copy of translated strings
class TranslatedStringWithRaw(str):
@ -211,7 +228,7 @@ class FormatterFunction:
doc = _('No documentation provided')
name = 'no name provided'
category = _('Unknown')
category = UNKNOWN
arg_count = 0
aliases = []
object_type = StoredObjectType.PythonFunction
@ -251,7 +268,7 @@ class BuiltinFormatterFunction(FormatterFunction):
class BuiltinStrcmp(BuiltinFormatterFunction):
name = 'strcmp'
arg_count = 5
category = _('Relational')
category = RELATIONAL
__doc__ = doc = _(
r'''
``strcmp(x, y, lt, eq, gt)`` -- does a case-insensitive lexical comparison of
@ -272,7 +289,7 @@ operators (``==``, ``>``, ``<``, etc.)
class BuiltinStrcmpcase(BuiltinFormatterFunction):
name = 'strcmpcase'
arg_count = 5
category = _(_('Relational'))
category = RELATIONAL
__doc__ = doc = _(
r'''
``strcmpcase(x, y, lt, eq, gt)`` -- does a case-sensitive lexical comparison of
@ -296,7 +313,7 @@ cause unexpected results, preferably use ``strcmp()`` whenever possible.
class BuiltinCmp(BuiltinFormatterFunction):
name = 'cmp'
category = _('Relational')
category = RELATIONAL
arg_count = 5
__doc__ = doc = _(
r'''
@ -318,7 +335,7 @@ This function can usually be replaced with one of the numeric compare operators
class BuiltinFirstMatchingCmp(BuiltinFormatterFunction):
name = 'first_matching_cmp'
category = _('Relational')
category = RELATIONAL
arg_count = -1
__doc__ = doc = _(
r'''
@ -348,7 +365,7 @@ returns ``"large"``. The same example with a first value of 16 returns ``"giant"
class BuiltinStrcat(BuiltinFormatterFunction):
name = 'strcat'
arg_count = -1
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``strcat(a [, b]*)`` -- returns a string formed by concatenating all the
@ -367,7 +384,7 @@ arguments.[/] Can take any number of arguments. In most cases you can use the
class BuiltinStrlen(BuiltinFormatterFunction):
name = 'strlen'
arg_count = 1
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``strlen(value)`` -- Returns the length of the string ``value``.
@ -383,7 +400,7 @@ r'''
class BuiltinAdd(BuiltinFormatterFunction):
name = 'add'
arg_count = -1
category = _('Arithmetic')
category = ARITHMETIC
__doc__ = doc = _(
'''
``add(x [, y]*)`` -- returns the sum of its arguments.[/] Throws an exception if an
@ -403,7 +420,7 @@ of this function.
class BuiltinSubtract(BuiltinFormatterFunction):
name = 'subtract'
arg_count = 2
category = _('Arithmetic')
category = ARITHMETIC
__doc__ = doc = _(
r'''
``subtract(x, y)`` -- returns ``x - y``.[/] Throws an exception if either ``x`` or
@ -420,7 +437,7 @@ operator.
class BuiltinMultiply(BuiltinFormatterFunction):
name = 'multiply'
arg_count = -1
category = _('Arithmetic')
category = ARITHMETIC
__doc__ = doc = _(
r'''
``multiply(x [, y]*)`` -- returns the product of its arguments.[/] Throws an
@ -439,7 +456,7 @@ by the ``*`` operator.
class BuiltinDivide(BuiltinFormatterFunction):
name = 'divide'
arg_count = 2
category = _('Arithmetic')
category = ARITHMETIC
__doc__ = doc = _(
r'''
``divide(x, y)`` -- returns ``x / y``.[/] Throws an exception if either ``x`` or
@ -456,7 +473,7 @@ operator.
class BuiltinCeiling(BuiltinFormatterFunction):
name = 'ceiling'
arg_count = 1
category = _('Arithmetic')
category = ARITHMETIC
__doc__ = doc = _(
r'''
``ceiling(value)`` -- returns the smallest integer greater than or equal to ``value``.[/]
@ -471,7 +488,7 @@ Throws an exception if ``value`` is not a number.
class BuiltinFloor(BuiltinFormatterFunction):
name = 'floor'
arg_count = 1
category = _('Arithmetic')
category = ARITHMETIC
__doc__ = doc = _(
r'''
``floor(value)`` -- returns the largest integer less than or equal to ``value``.[/] Throws
@ -486,7 +503,7 @@ an exception if ``value`` is not a number.
class BuiltinRound(BuiltinFormatterFunction):
name = 'round'
arg_count = 1
category = _('Arithmetic')
category = ARITHMETIC
__doc__ = doc = _(
r'''
``round(value)`` -- returns the nearest integer to ``value``.[/] Throws an exception if
@ -501,7 +518,7 @@ r'''
class BuiltinMod(BuiltinFormatterFunction):
name = 'mod'
arg_count = 2
category = _('Arithmetic')
category = ARITHMETIC
__doc__ = doc = _(
r'''
``mod(value, y)`` -- returns the ``floor`` of the remainder of ``value / y``.[/] Throws an
@ -517,7 +534,7 @@ exception if either ``value`` or ``y`` is not a number.
class BuiltinFractionalPart(BuiltinFormatterFunction):
name = 'fractional_part'
arg_count = 1
category = _('Arithmetic')
category = ARITHMETIC
__doc__ = doc = _(
r'''
``fractional_part(value)`` -- returns the part of the value after the decimal
@ -533,7 +550,7 @@ exception if ``value`` is not a number.
class BuiltinTemplate(BuiltinFormatterFunction):
name = 'template'
arg_count = 1
category = _('Recursion')
category = RECURSION
__doc__ = doc = _(
r'''
@ -556,7 +573,7 @@ mode.
class BuiltinEval(BuiltinFormatterFunction):
name = 'eval'
arg_count = 1
category = _('Recursion')
category = RECURSION
__doc__ = doc = _(
r'''
``eval(string)`` -- evaluates the string as a program, passing the local
@ -580,7 +597,7 @@ function when using Template Program Mode.
class BuiltinAssign(BuiltinFormatterFunction):
name = 'assign'
arg_count = 2
category = _('Other')
category = OTHER
__doc__ = doc = _(
r'''
``assign(id, value)`` -- assigns ``value`` to ``id``[/], then returns ``value``. ``id``
@ -596,7 +613,7 @@ operator instead of this function.
class BuiltinListSplit(BuiltinFormatterFunction):
name = 'list_split'
arg_count = 3
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_split(list_val, sep, id_prefix)`` -- splits ``list_val`` into separate
@ -627,7 +644,7 @@ is equivalent to:
class BuiltinPrint(BuiltinFormatterFunction):
name = 'print'
arg_count = -1
category = _('Other')
category = OTHER
__doc__ = doc = _(
r'''
``print(a [, b]*)`` -- prints the arguments to standard output.[/] Unless you start
@ -643,7 +660,7 @@ black hole. The ``print`` function always returns its first argument.
class BuiltinField(BuiltinFormatterFunction):
name = 'field'
arg_count = 1
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``field(lookup_name)`` -- returns the value of the metadata field with lookup name ``lookup_name``.[/]
@ -657,7 +674,7 @@ The ``$`` prefix can be used instead of the function, as in ``$tags``.
class BuiltinRawField(BuiltinFormatterFunction):
name = 'raw_field'
arg_count = -1
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``raw_field(lookup_name [, optional_default])`` -- returns the metadata field
@ -682,7 +699,7 @@ as in ``$$pubdate``.
class BuiltinRawList(BuiltinFormatterFunction):
name = 'raw_list'
arg_count = 2
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``raw_list(lookup_name, separator)`` -- returns the metadata list named by
@ -700,7 +717,7 @@ separated by ``separator``.
class BuiltinSubstr(BuiltinFormatterFunction):
name = 'substr'
arg_count = 3
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``substr(value, start, end)`` -- returns the ``start``'th through the ``end``'th
@ -718,7 +735,7 @@ returns ``'234'``.
class BuiltinLookup(BuiltinFormatterFunction):
name = 'lookup'
arg_count = -1
category = _('Iterating over values')
category = ITERATING_VALUES
__doc__ = doc = _(
r'''
``lookup(value, [ pattern, key, ]* else_key)`` -- The patterns will be checked against
@ -747,7 +764,7 @@ the ``value`` in order[/]. If a ``pattern`` matches then the value of the field
class BuiltinTest(BuiltinFormatterFunction):
name = 'test'
arg_count = 3
category = _('If-then-else')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``test(value, text_if_not_empty, text_if_empty)`` -- return ``text_if_not_empty`` if
@ -764,7 +781,7 @@ the value is not empty, otherwise return ``text_if_empty``.
class BuiltinContains(BuiltinFormatterFunction):
name = 'contains'
arg_count = 4
category = _('If-then-else')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``contains(value, pattern, text_if_match, text_if_not_match)`` -- checks if the value
@ -783,7 +800,7 @@ the pattern matches the value, otherwise returns ``text_if_not_match``.
class BuiltinSwitch(BuiltinFormatterFunction):
name = 'switch'
arg_count = -1
category = _('Iterating over values')
category = ITERATING_VALUES
__doc__ = doc = _(
r'''
``switch(value, [patternN, valueN,]+ else_value)`` -- for each ``patternN, valueN`` pair,
@ -808,7 +825,7 @@ match is returned.
class BuiltinSwitchIf(BuiltinFormatterFunction):
name = 'switch_if'
arg_count = -1
category = _('Iterating over values')
category = ITERATING_VALUES
__doc__ = doc = _(
r'''
``switch_if([test_expression, value_expression,]+ else_expression)`` -- for each
@ -835,7 +852,7 @@ You can have as many ``test_expression, value_expression`` pairs as you want.
class BuiltinStrcatMax(BuiltinFormatterFunction):
name = 'strcat_max'
arg_count = -1
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``strcat_max(max, string1 [, prefix2, string2]*)`` -- Returns a string formed by
@ -872,7 +889,7 @@ many ``prefix, string`` pairs as you wish.
class BuiltinInList(BuiltinFormatterFunction):
name = 'list_contains'
arg_count = -1
category = _('List lookup')
category = LIST_LOOKUP
__doc__ = doc = _(
r'''
``list_contains(value, separator, [ pattern, found_val, ]* not_found_val)`` -- interpret the
@ -908,7 +925,7 @@ Aliases: in_list(), list_contains()
class BuiltinStrInList(BuiltinFormatterFunction):
name = 'str_in_list'
arg_count = -1
category = _('List lookup')
category = LIST_LOOKUP
__doc__ = doc = _(
r'''
``str_in_list(value, separator, [ string, found_val, ]+ not_found_val)`` -- interpret
@ -945,7 +962,7 @@ match is returned.
class BuiltinIdentifierInList(BuiltinFormatterFunction):
name = 'identifier_in_list'
arg_count = -1
category = _('List lookup')
category = LIST_LOOKUP
__doc__ = doc = _(
r'''
``identifier_in_list(val, id_name [, found_val, not_found_val])`` -- treat
@ -986,7 +1003,7 @@ return ``found_val``, otherwise return ``not_found_val``. If ``found_val`` and
class BuiltinRe(BuiltinFormatterFunction):
name = 're'
arg_count = 3
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``re(value, pattern, replacement)`` -- return the ``value`` after applying the regular
@ -1003,7 +1020,7 @@ expressions[/URL].
class BuiltinReGroup(BuiltinFormatterFunction):
name = 're_group'
arg_count = -1
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``re_group(value, pattern [, template_for_group]*)`` -- return a string made by
@ -1042,7 +1059,7 @@ program: re_group(field('series'), "(\S* )(.*)", "{$:uppercase()}", "{$}")'}
class BuiltinSwapAroundComma(BuiltinFormatterFunction):
name = 'swap_around_comma'
arg_count = 1
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``swap_around_comma(value)`` -- given a ``value`` of the form ``B, A``, return ``A B``.[/]
@ -1057,7 +1074,7 @@ no comma in the ``value`` then the function returns the value unchanged.
class BuiltinIfempty(BuiltinFormatterFunction):
name = 'ifempty'
arg_count = 2
category = _('If-then-else')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``ifempty(value, text_if_empty)`` -- if the ``value`` is not empty then return that ``value``,
@ -1074,7 +1091,7 @@ otherwise return ``text_if_empty``.
class BuiltinShorten(BuiltinFormatterFunction):
name = 'shorten'
arg_count = 4
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``shorten(value, left_chars, middle_text, right_chars)`` -- Return a shortened version
@ -1106,7 +1123,7 @@ Dome` would not be changed.
class BuiltinCount(BuiltinFormatterFunction):
name = 'list_count'
arg_count = 2
category = _('List manipulation')
category = LIST_MANIPULATION
aliases = ['count']
__doc__ = doc = _(
@ -1127,7 +1144,7 @@ Aliases: ``count()``, ``list_count()``
class BuiltinListCountMatching(BuiltinFormatterFunction):
name = 'list_count_matching'
arg_count = 3
category = _('List manipulation')
category = LIST_MANIPULATION
aliases = ['count_matching']
__doc__ = doc = _(
@ -1150,7 +1167,7 @@ Aliases: ``list_count_matching()``, ``count_matching()``
class BuiltinListitem(BuiltinFormatterFunction):
name = 'list_item'
arg_count = 3
category = _('List lookup')
category = LIST_LOOKUP
__doc__ = doc = _(
r'''
``list_item(value, index, separator)`` -- interpret the ``value`` as a list of items
@ -1175,7 +1192,7 @@ usually comma but is ampersand for author-like lists.
class BuiltinSelect(BuiltinFormatterFunction):
name = 'select'
arg_count = 2
category = _('List lookup')
category = LIST_LOOKUP
__doc__ = doc = _(
r'''
``select(value, key)`` -- interpret the ``value`` as a comma-separated list of items with
@ -1199,7 +1216,7 @@ string.
class BuiltinApproximateFormats(BuiltinFormatterFunction):
name = 'approximate_formats'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``approximate_formats()`` -- return a comma-separated list of formats associated
@ -1228,7 +1245,7 @@ column's value in your save/send templates.
class BuiltinFormatsModtimes(BuiltinFormatterFunction):
name = 'formats_modtimes'
arg_count = 1
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``formats_modtimes(date_format_string)`` -- return a comma-separated list of
@ -1253,7 +1270,7 @@ that format names are always uppercase, as in EPUB.
class BuiltinFormatsSizes(BuiltinFormatterFunction):
name = 'formats_sizes'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``formats_sizes()`` -- return a comma-separated list of colon-separated
@ -1273,7 +1290,7 @@ format names are always uppercase, as in EPUB.
class BuiltinFormatsPaths(BuiltinFormatterFunction):
name = 'formats_paths'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``formats_paths()`` -- return a comma-separated list of colon-separated items
@ -1293,7 +1310,7 @@ are always uppercase, as in EPUB.
class BuiltinHumanReadable(BuiltinFormatterFunction):
name = 'human_readable'
arg_count = 1
category = _('Formatting values')
category = FORMATTING_VALUES
__doc__ = doc = _(
r'''
``human_readable(value)`` -- expects the ``value`` to be a number and returns a string
@ -1310,7 +1327,7 @@ representing that number in KB, MB, GB, etc.
class BuiltinFormatNumber(BuiltinFormatterFunction):
name = 'format_number'
arg_count = 2
category = _('Formatting values')
category = FORMATTING_VALUES
__doc__ = doc = _(
r'''
``format_number(value, template)`` -- interprets the ``value`` as a number and formats that
@ -1349,7 +1366,7 @@ Python[/URL] documentation for more examples. Returns the empty string if format
class BuiltinSublist(BuiltinFormatterFunction):
name = 'sublist'
arg_count = 4
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``sublist(value, start_index, end_index, separator)`` -- interpret the ``value`` as a
@ -1388,7 +1405,7 @@ Examples assuming that the tags column (which is comma-separated) contains "A, B
class BuiltinSubitems(BuiltinFormatterFunction):
name = 'subitems'
arg_count = 3
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``subitems(value, start_index, end_index)`` -- This function breaks apart lists of
@ -1446,7 +1463,7 @@ Examples:
class BuiltinFormatDate(BuiltinFormatterFunction):
name = 'format_date'
arg_count = 2
category = _('Formatting values')
category = FORMATTING_VALUES
__doc__ = doc = _(
r'''
``format_date(value, format_string)`` -- format the ``value``, which must be a date
@ -1510,7 +1527,7 @@ contain ``MMMM``. Using ``format_date_field()`` avoids this problem.
class BuiltinFormatDateField(BuiltinFormatterFunction):
name = 'format_date_field'
arg_count = 2
category = _('Formatting values')
category = FORMATTING_VALUES
__doc__ = doc = _(
r'''
``format_date_field(field_name, format_string)`` -- format the value in the
@ -1556,7 +1573,7 @@ format_date_field('#date_read', 'MMM dd, yyyy')
class BuiltinUppercase(BuiltinFormatterFunction):
name = 'uppercase'
arg_count = 1
category = _('String case changes')
category = CASE_CHANGES
__doc__ = doc = _(
r'''
``uppercase(value)`` -- returns the ``value`` in upper case.
@ -1569,7 +1586,7 @@ r'''
class BuiltinLowercase(BuiltinFormatterFunction):
name = 'lowercase'
arg_count = 1
category = _('String case changes')
category = CASE_CHANGES
__doc__ = doc = _(
r'''
``lowercase(value)`` -- returns the ``value`` in lower case.
@ -1582,7 +1599,7 @@ r'''
class BuiltinTitlecase(BuiltinFormatterFunction):
name = 'titlecase'
arg_count = 1
category = _('String case changes')
category = CASE_CHANGES
__doc__ = doc = _(
r'''
``titlecase(value)`` -- returns the ``value`` in title case.
@ -1595,7 +1612,7 @@ r'''
class BuiltinCapitalize(BuiltinFormatterFunction):
name = 'capitalize'
arg_count = 1
category = _('String case changes')
category = CASE_CHANGES
__doc__ = doc = _(
r'''
``capitalize(value)`` -- returns the ``value`` with the first letter in upper case and the rest lower case.
@ -1608,7 +1625,7 @@ r'''
class BuiltinBooksize(BuiltinFormatterFunction):
name = 'booksize'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``booksize()`` -- returns the value of the calibre ``size`` field. Returns '' if the book has no formats.[/]
@ -1635,7 +1652,7 @@ column's value in your save/send templates
class BuiltinOndevice(BuiltinFormatterFunction):
name = 'ondevice'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``ondevice()`` -- return the string ``'Yes'`` if ``ondevice`` is set, otherwise
@ -1656,7 +1673,7 @@ template, and use that column\'s value in your save/send templates.
class BuiltinAnnotationCount(BuiltinFormatterFunction):
name = 'annotation_count'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``annotation_count()`` -- return the total number of annotations of all types
@ -1671,7 +1688,7 @@ attached to the current book.[/] This function works only in the GUI.
class BuiltinIsMarked(BuiltinFormatterFunction):
name = 'is_marked'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``is_marked()`` -- check whether the book is `marked` in calibre.[/] If it is then
@ -1688,7 +1705,7 @@ not marked. This function works only in the GUI.
class BuiltinSeriesSort(BuiltinFormatterFunction):
name = 'series_sort'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``series_sort()`` -- returns the series sort value.
@ -1705,7 +1722,7 @@ r'''
class BuiltinHasCover(BuiltinFormatterFunction):
name = 'has_cover'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``has_cover()`` -- return ``'Yes'`` if the book has a cover, otherwise the empty string.
@ -1720,7 +1737,7 @@ r'''
class BuiltinFirstNonEmpty(BuiltinFormatterFunction):
name = 'first_non_empty'
arg_count = -1
category = _('Iterating over values')
category = ITERATING_VALUES
__doc__ = doc = _(
r'''
``first_non_empty(value [, value]*)`` -- returns the first ``value`` that is not
@ -1740,7 +1757,7 @@ as many values as you want.
class BuiltinAnd(BuiltinFormatterFunction):
name = 'and'
arg_count = -1
category = _('Boolean')
category = BOOLEAN
__doc__ = doc = _(
r'''
``and(value [, value]*)`` -- returns the string ``'1'`` if all values are not empty,
@ -1763,7 +1780,7 @@ assignments, where the ``&&`` operator won't do the second.
class BuiltinOr(BuiltinFormatterFunction):
name = 'or'
arg_count = -1
category = _('Boolean')
category = BOOLEAN
__doc__ = doc = _(
r'''
``or(value [, value]*)`` -- returns the string ``'1'`` if any value is not
@ -1785,7 +1802,7 @@ side effects.
class BuiltinNot(BuiltinFormatterFunction):
name = 'not'
arg_count = 1
category = _('Boolean')
category = BOOLEAN
__doc__ = doc = _(
r'''
``not(value)`` -- returns the string ``'1'`` if the value is empty, otherwise
@ -1800,7 +1817,7 @@ not (``!``) operator.
class BuiltinListJoin(BuiltinFormatterFunction):
name = 'list_join'
arg_count = -1
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_join(with_separator, list1, separator1 [, list2, separator2]*)`` --
@ -1853,7 +1870,7 @@ program:
class BuiltinListUnion(BuiltinFormatterFunction):
name = 'list_union'
arg_count = 3
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_union(list1, list2, separator)`` -- return a list made by merging the
@ -1875,7 +1892,7 @@ items in the returned list. Aliases: ``merge_lists()``, ``list_union()``
class BuiltinRange(BuiltinFormatterFunction):
name = 'range'
arg_count = -1
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``range(start, stop, step, limit)`` -- returns a list of numbers generated by
@ -1928,7 +1945,7 @@ range(1, 5, 2, 1) -> error(limit exceeded)
class BuiltinListRemoveDuplicates(BuiltinFormatterFunction):
name = 'list_remove_duplicates'
arg_count = 2
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_remove_duplicates(list, separator)`` -- return a list made by removing
@ -1947,7 +1964,7 @@ in the returned list.
class BuiltinListDifference(BuiltinFormatterFunction):
name = 'list_difference'
arg_count = 3
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_difference(list1, list2, separator)`` -- return a list made by removing
@ -1972,7 +1989,7 @@ items in the returned list.
class BuiltinListIntersection(BuiltinFormatterFunction):
name = 'list_intersection'
arg_count = 3
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_intersection(list1, list2, separator)`` -- return a list made by removing
@ -1997,7 +2014,7 @@ are the items in the returned list.
class BuiltinListSort(BuiltinFormatterFunction):
name = 'list_sort'
arg_count = 3
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_sort(value, direction, separator)`` -- return ``value`` sorted using a
@ -2016,7 +2033,7 @@ by ``separator``, as are the items in the returned list.
class BuiltinListEquals(BuiltinFormatterFunction):
name = 'list_equals'
arg_count = 6
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_equals(list1, sep1, list2, sep2, yes_val, no_val)`` -- return ``yes_val``
@ -2037,7 +2054,7 @@ relevant. The comparison is case-insensitive.
class BuiltinListRe(BuiltinFormatterFunction):
name = 'list_re'
arg_count = 4
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_re(src_list, separator, include_re, opt_replace)`` -- Construct a list by
@ -2065,7 +2082,7 @@ apply the replacement before adding the item to the returned list.
class BuiltinListReGroup(BuiltinFormatterFunction):
name = 'list_re_group'
arg_count = -1
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_re_group(src_list, separator, include_re, search_re [,template_for_group]*)``
@ -2107,7 +2124,7 @@ uses ``re_group(item, search_re, template ...)`` when doing the replacements.
class BuiltinToday(BuiltinFormatterFunction):
name = 'today'
arg_count = 0
category = _('Date functions')
category = DATE_FUNCTIONS
__doc__ = doc = _(
r'''
``today()`` -- return a date+time string for today (now).[/] This value is designed
@ -2123,7 +2140,7 @@ date/time format.
class BuiltinDaysBetween(BuiltinFormatterFunction):
name = 'days_between'
arg_count = 2
category = _('Date functions')
category = DATE_FUNCTIONS
__doc__ = doc = _(
r'''
``days_between(date1, date2)`` -- return the number of days between ``date1``
@ -2149,7 +2166,7 @@ returns the empty string.
class BuiltinDateArithmetic(BuiltinFormatterFunction):
name = 'date_arithmetic'
arg_count = -1
category = _('Date functions')
category = DATE_FUNCTIONS
__doc__ = doc = _(
r'''
``date_arithmetic(value, calc_spec, fmt)`` -- Calculate a new date from ``value``
@ -2201,7 +2218,7 @@ Example: ``'1s3d-1m'`` will add 1 second, add 3 days, and subtract 1 minute from
class BuiltinLanguageStrings(BuiltinFormatterFunction):
name = 'language_strings'
arg_count = 2
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``language_strings(value, localize)`` -- return the
@ -2228,7 +2245,7 @@ return the strings in the language of the current locale. ``lang_codes`` is a co
class BuiltinLanguageCodes(BuiltinFormatterFunction):
name = 'language_codes'
arg_count = 1
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``language_codes(lang_strings)`` -- return the
@ -2252,7 +2269,7 @@ current locale. ``lang_strings`` is a comma-separated list.
class BuiltinCurrentLibraryName(BuiltinFormatterFunction):
name = 'current_library_name'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``current_library_name()`` -- return the last name on the path to the current calibre library.
@ -2266,7 +2283,7 @@ r'''
class BuiltinCurrentLibraryPath(BuiltinFormatterFunction):
name = 'current_library_path'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``current_library_path()`` -- return the full path to the current calibre
@ -2281,7 +2298,7 @@ library.
class BuiltinFinishFormatting(BuiltinFormatterFunction):
name = 'finish_formatting'
arg_count = 4
category = _('Formatting values')
category = FORMATTING_VALUES
__doc__ = doc = _(
r'''
``finish_formatting(value, format, prefix, suffix)`` -- apply the ``format``, ``prefix``, and
@ -2317,7 +2334,7 @@ program:
class BuiltinVirtualLibraries(BuiltinFormatterFunction):
name = 'virtual_libraries'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``virtual_libraries()`` -- return a comma-separated list of Virtual libraries that
@ -2339,7 +2356,7 @@ and use that column's value in your save/send templates.
class BuiltinCurrentVirtualLibraryName(BuiltinFormatterFunction):
name = 'current_virtual_library_name'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``current_virtual_library_name()`` -- return the name of the current
@ -2358,7 +2375,7 @@ This function works only in the GUI.
class BuiltinUserCategories(BuiltinFormatterFunction):
name = 'user_categories'
arg_count = 0
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``user_categories()`` -- return a comma-separated list of the user categories that
@ -2379,7 +2396,7 @@ and use that column's value in your save/send templates
class BuiltinTransliterate(BuiltinFormatterFunction):
name = 'transliterate'
arg_count = 1
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``transliterate(value)`` -- Return a string in a latin alphabet formed by
@ -2395,7 +2412,7 @@ is ``{0}`` this function returns ``{1}``.
class BuiltinGetLink(BuiltinFormatterFunction):
name = 'get_link'
arg_count = 2
category = _('Template database functions')
category = DB_FUNCS
__doc__ = doc = _(
r'''
``get_link(field_name, field_value)`` -- fetch the link for field ``field_name``
@ -2438,7 +2455,7 @@ ans
class BuiltinAuthorLinks(BuiltinFormatterFunction):
name = 'author_links'
arg_count = 2
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``author_links(val_separator, pair_separator)`` -- returns a string containing a
@ -2469,7 +2486,7 @@ is included even if the author link is empty.
class BuiltinAuthorSorts(BuiltinFormatterFunction):
name = 'author_sorts'
arg_count = 1
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``author_sorts(val_separator)`` -- returns a string containing a list of
@ -2492,7 +2509,7 @@ then include them in the ``val_separator`` string.
class BuiltinConnectedDeviceName(BuiltinFormatterFunction):
name = 'connected_device_name'
arg_count = 1
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``connected_device_name(storage_location_key)`` -- if a device is connected then
@ -2530,7 +2547,7 @@ on a device has its own device name. The ``storage_location_key`` names are
class BuiltinConnectedDeviceUUID(BuiltinFormatterFunction):
name = 'connected_device_uuid'
arg_count = 1
category = _('Get values from metadata')
category = GET_FROM_METADATA
__doc__ = doc = _(
r'''
``connected_device_uuid(storage_location_key)`` -- if a device is connected then
@ -2568,7 +2585,7 @@ only in the GUI.
class BuiltinCheckYesNo(BuiltinFormatterFunction):
name = 'check_yes_no'
arg_count = 4
category = _('If-then-else')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``check_yes_no(field_name, is_undefined, is_false, is_true)`` -- checks if the
@ -2605,7 +2622,7 @@ More than one of ``is_undefined``, ``is_false``, or ``is_true`` can be set to 1.
class BuiltinRatingToStars(BuiltinFormatterFunction):
name = 'rating_to_stars'
arg_count = 2
category = _('Formatting values')
category = FORMATTING_VALUES
__doc__ = doc = _(
r'''
``rating_to_stars(value, use_half_stars)`` -- Returns the ``value`` as string of star
@ -2631,7 +2648,7 @@ available with custom ratings columns.
class BuiltinSwapAroundArticles(BuiltinFormatterFunction):
name = 'swap_around_articles'
arg_count = 2
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``swap_around_articles(value, separator)`` -- returns the ``value`` with articles moved to
@ -2658,7 +2675,7 @@ a list. The `articles` are those used by calibre to generate the ``title_sort``.
class BuiltinArguments(BuiltinFormatterFunction):
name = 'arguments'
arg_count = -1
category = _('Other')
category = OTHER
__doc__ = doc = _(
r'''
``arguments(id[=expression] [, id[=expression]]*)`` -- Used in a stored
@ -2679,7 +2696,7 @@ is set to the empty string.
class BuiltinGlobals(BuiltinFormatterFunction):
name = 'globals'
arg_count = -1
category = _('Other')
category = OTHER
__doc__ = doc = _(
r'''
``globals(id[=expression] [, id[=expression]]*)`` -- Retrieves "global variables"
@ -2699,7 +2716,7 @@ string.)
class BuiltinSetGlobals(BuiltinFormatterFunction):
name = 'set_globals'
arg_count = -1
category = _('Other')
category = OTHER
__doc__ = doc = _(
r'''
``set_globals(id[=expression] [, id[=expression]]*)`` -- Sets `global
@ -2716,7 +2733,7 @@ provided.
class BuiltinFieldExists(BuiltinFormatterFunction):
name = 'field_exists'
arg_count = 1
category = _('If-then-else')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``field_exists(lookup_name)`` -- checks if a field (column) with the lookup name
@ -2732,7 +2749,7 @@ r'''
class BuiltinCharacter(BuiltinFormatterFunction):
name = 'character'
arg_count = 1
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``character(character_name)`` -- returns the character named by character_name.[/]
@ -2750,7 +2767,7 @@ of templates.
class BuiltinToHex(BuiltinFormatterFunction):
name = 'to_hex'
arg_count = 1
category = _('String manipulation')
category = STRING_MANIPULATION
__doc__ = doc = _(
r'''
``to_hex(val)`` -- returns the string ``val`` encoded into hex.[/] This is useful
@ -2764,7 +2781,7 @@ when constructing calibre URLs.
class BuiltinUrlsFromIdentifiers(BuiltinFormatterFunction):
name = 'urls_from_identifiers'
arg_count = 2
category = _('Formatting values')
category = FORMATTING_VALUES
__doc__ = doc = _(
r'''
``urls_from_identifiers(identifiers, sort_results)`` -- given a comma-separated
@ -2801,7 +2818,7 @@ when shown in Book Details.
class BuiltinBookCount(BuiltinFormatterFunction):
name = 'book_count'
arg_count = 2
category = _('Template database functions')
category = DB_FUNCS
__doc__ = doc = _(
r'''
``book_count(query, use_vl)`` -- returns the count of books found by searching
@ -2860,7 +2877,7 @@ expressions.
class BuiltinBookValues(BuiltinFormatterFunction):
name = 'book_values'
arg_count = 4
category = _('Template database functions')
category = DB_FUNCS
__doc__ = doc = _(
r'''
``book_values(column, query, sep, use_vl)`` -- returns a list of the unique
@ -2899,7 +2916,7 @@ used only in the GUI.
class BuiltinHasExtraFiles(BuiltinFormatterFunction):
name = 'has_extra_files'
arg_count = -1
category = _('Template database functions')
category = DB_FUNCS
__doc__ = doc = _(
r'''
``has_extra_files([pattern])`` -- returns the count of extra files, otherwise ''
@ -2930,7 +2947,7 @@ This function can be used only in the GUI.
class BuiltinExtraFileNames(BuiltinFormatterFunction):
name = 'extra_file_names'
arg_count = -1
category = _('Template database functions')
category = DB_FUNCS
__doc__ = doc = _(
r'''
``extra_file_names(sep [, pattern])`` -- returns a ``sep``-separated list of
@ -2961,7 +2978,7 @@ the functions :ref:`has_extra_files`, :ref:`extra_file_modtime` and
class BuiltinExtraFileSize(BuiltinFormatterFunction):
name = 'extra_file_size'
arg_count = 1
category = _('Template database functions')
category = DB_FUNCS
__doc__ = doc = _(
r'''
``extra_file_size(file_name)`` -- returns the size in bytes of the extra file
@ -2986,7 +3003,7 @@ also the functions ``has_extra_files()``, ``extra_file_names()`` and
class BuiltinExtraFileModtime(BuiltinFormatterFunction):
name = 'extra_file_modtime'
arg_count = 2
category = _('Template database functions')
category = DB_FUNCS
__doc__ = doc = _(
r'''
``extra_file_modtime(file_name, format_string)`` -- returns the modification
@ -3018,7 +3035,7 @@ This function can be used only in the GUI.
class BuiltinGetNote(BuiltinFormatterFunction):
name = 'get_note'
arg_count = 3
category = _('Template database functions')
category = DB_FUNCS
__doc__ = doc = _(
r'''
``get_note(field_name, field_value, plain_text)`` -- fetch the note for field
@ -3080,7 +3097,7 @@ program:
class BuiltinHasNote(BuiltinFormatterFunction):
name = 'has_note'
arg_count = 2
category = _('Template database functions')
category = DB_FUNCS
__doc__ = doc = _(
r'''
``has_note(field_name, field_value)``. Check if a field has a note.[/]
@ -3132,7 +3149,7 @@ values in ``field_name``. Example:
class BuiltinIsDarkMode(BuiltinFormatterFunction):
name = 'is_dark_mode'
arg_count = 0
category = _('Other')
category = OTHER
__doc__ = doc = _(
r'''
``is_dark_mode()`` -- returns ``'1'`` if calibre is running in dark mode, ``''``
@ -3155,7 +3172,7 @@ icon rules to choose different colors/icons according to the mode. Example:
class BuiltinFieldListCount(BuiltinFormatterFunction):
name = 'list_count_field'
arg_count = 0
category = _('List manipulation')
category = LIST_MANIPULATION
__doc__ = doc = _(
r'''
``list_count_field(lookup_name)``-- returns the count of items in the field with