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Kaydet (Commit) b7e14eda authored tarafından Georg Brandl's avatar Georg Brandl
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#6456: clarify the meaning of constants used as arguments to nl_langinfo().

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Doc/library/locale.rst
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......@@ -148,10 +148,124 @@ The :mod:`locale` module defines the following exception and functions:
.. function:: nl_langinfo(option)
Return some locale-specific information as a string. This function is not
available on all systems, and the set of possible options might also vary across
platforms. The possible argument values are numbers, for which symbolic
constants are available in the locale module.
Return some locale-specific information as a string. This function is not
available on all systems, and the set of possible options might also vary
across platforms. The possible argument values are numbers, for which
symbolic constants are available in the locale module.
The :func:`nl_langinfo` function accepts one of the following keys. Most
descriptions are taken from the corresponding description in the GNU C
library.
.. data:: CODESET
Get a string with the name of the character encoding used in the
selected locale.
.. data:: D_T_FMT
Get a string that can be used as a format string for :func:`strftime` to
represent time and date in a locale-specific way.
.. data:: D_FMT
Get a string that can be used as a format string for :func:`strftime` to
represent a date in a locale-specific way.
.. data:: T_FMT
Get a string that can be used as a format string for :func:`strftime` to
represent a time in a locale-specific way.
.. data:: T_FMT_AMPM
Get a format string for :func:`strftime` to represent time in the am/pm
format.
.. data:: DAY_1 ... DAY_7
Get the name of the n-th day of the week.
.. note::
This follows the US convention of :const:`DAY_1` being Sunday, not the
international convention (ISO 8601) that Monday is the first day of the
week.
.. data:: ABDAY_1 ... ABDAY_7
Get the abbreviated name of the n-th day of the week.
.. data:: MON_1 ... MON_12
Get the name of the n-th month.
.. data:: ABMON_1 ... ABMON_12
Get the abbreviated name of the n-th month.
.. data:: RADIXCHAR
Get the radix character (decimal dot, decimal comma, etc.)
.. data:: THOUSEP
Get the separator character for thousands (groups of three digits).
.. data:: YESEXPR
Get a regular expression that can be used with the regex function to
recognize a positive response to a yes/no question.
.. note::
The expression is in the syntax suitable for the :cfunc:`regex` function
from the C library, which might differ from the syntax used in :mod:`re`.
.. data:: NOEXPR
Get a regular expression that can be used with the regex(3) function to
recognize a negative response to a yes/no question.
.. data:: CRNCYSTR
Get the currency symbol, preceded by "-" if the symbol should appear before
the value, "+" if the symbol should appear after the value, or "." if the
symbol should replace the radix character.
.. data:: ERA
Get a string that represents the era used in the current locale.
Most locales do not define this value. An example of a locale which does
define this value is the Japanese one. In Japan, the traditional
representation of dates includes the name of the era corresponding to the
then-emperor's reign.
Normally it should not be necessary to use this value directly. Specifying
the ``E`` modifier in their format strings causes the :func:`strftime`
function to use this information. The format of the returned string is not
specified, and therefore you should not assume knowledge of it on different
systems.
.. data:: ERA_YEAR
Get the year in the relevant era of the locale.
.. data:: ERA_D_T_FMT
Get a format string for :func:`strftime` to represent dates and times in a
locale-specific era-based way.
.. data:: ERA_D_FMT
Get a format string for :func:`strftime` to represent time in a
locale-specific era-based way.
.. data:: ALT_DIGITS
Get a representation of up to 100 values used to represent the values
0 to 99.
.. function:: getdefaultlocale([envvars])
......@@ -360,140 +474,13 @@ The :mod:`locale` module defines the following exception and functions:
This is a symbolic constant used for different values returned by
:func:`localeconv`.
The :func:`nl_langinfo` function accepts one of the following keys. Most
descriptions are taken from the corresponding description in the GNU C library.
.. data:: CODESET
Return a string with the name of the character encoding used in the selected
locale.
.. data:: D_T_FMT
Return a string that can be used as a format string for strftime(3) to represent
time and date in a locale-specific way.
.. data:: D_FMT
Return a string that can be used as a format string for strftime(3) to represent
a date in a locale-specific way.
.. data:: T_FMT
Return a string that can be used as a format string for strftime(3) to represent
a time in a locale-specific way.
.. data:: T_FMT_AMPM
The return value can be used as a format string for 'strftime' to represent time
in the am/pm format.
.. data:: DAY_1 ... DAY_7
Return name of the n-th day of the week.
.. note::
This follows the US convention of :const:`DAY_1` being Sunday, not the
international convention (ISO 8601) that Monday is the first day of the week.
.. data:: ABDAY_1 ... ABDAY_7
Return abbreviated name of the n-th day of the week.
.. data:: MON_1 ... MON_12
Return name of the n-th month.
.. data:: ABMON_1 ... ABMON_12
Return abbreviated name of the n-th month.
.. data:: RADIXCHAR
Return radix character (decimal dot, decimal comma, etc.)
.. data:: THOUSEP
Return separator character for thousands (groups of three digits).
.. data:: YESEXPR
Return a regular expression that can be used with the regex function to
recognize a positive response to a yes/no question.
.. note::
The expression is in the syntax suitable for the :cfunc:`regex` function from
the C library, which might differ from the syntax used in :mod:`re`.
.. data:: NOEXPR
Return a regular expression that can be used with the regex(3) function to
recognize a negative response to a yes/no question.
.. data:: CRNCYSTR
Return the currency symbol, preceded by "-" if the symbol should appear before
the value, "+" if the symbol should appear after the value, or "." if the symbol
should replace the radix character.
.. data:: ERA
The return value represents the era used in the current locale.
Most locales do not define this value. An example of a locale which does define
this value is the Japanese one. In Japan, the traditional representation of
dates includes the name of the era corresponding to the then-emperor's reign.
Normally it should not be necessary to use this value directly. Specifying the
``E`` modifier in their format strings causes the :func:`strftime` function to
use this information. The format of the returned string is not specified, and
therefore you should not assume knowledge of it on different systems.
.. data:: ERA_YEAR
The return value gives the year in the relevant era of the locale.
.. data:: ERA_D_T_FMT
This return value can be used as a format string for :func:`strftime` to
represent dates and times in a locale-specific era-based way.
.. data:: ERA_D_FMT
This return value can be used as a format string for :func:`strftime` to
represent time in a locale-specific era-based way.
.. data:: ALT_DIGITS
The return value is a representation of up to 100 values used to represent the
values 0 to 99.
Example::
>>> import locale
>>> loc = locale.getlocale() # get current locale
>>> locale.setlocale(locale.LC_ALL, 'de_DE') # use German locale; name might vary with platform
# use German locale; name might vary with platform
>>> locale.setlocale(locale.LC_ALL, 'de_DE')
>>> locale.strcoll('f\xe4n', 'foo') # compare a string containing an umlaut
>>> locale.setlocale(locale.LC_ALL, '') # use user's preferred locale
>>> locale.setlocale(locale.LC_ALL, 'C') # use default (C) locale
......
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