Improve localedef(1) manpage
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.\" add the following below this CDDL HEADER, with the fields enclosed by
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.\" brackets "[]" replaced with your own identifying information:
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.\" Portions Copyright [yyyy] [name of copyright owner]
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.\"
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.\" $FreeBSD$
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.\"
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.Dd July 28, 2015
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.Dt LOCALEDEF 1
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.Os
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@ -38,123 +41,139 @@
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.Nd define locale environment
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.Sh SYNOPSIS
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.Nm
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.Op Fl D
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.Op Fl c
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.Op Fl v
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.Op Fl U
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.Op Fl cDUv
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.Op Fl f Ar charmap
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.Op Fl w Ar widthfile
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.Op Fl i Ar sourcefile
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.Op Fl u Ar codeset
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localename
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.Op Fl w Ar widthfile
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.Ar localename
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.Sh DESCRIPTION
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The
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.Nm localedef
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.Nm
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utility converts source definitions for locale categories
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into a format usable by the functions and utilities whose operational behavior
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is determined by the setting of the locale environment variables; see
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.Xr environ 5 .
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.Xr environ 7 .
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.Pp
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The utility reads source definitions for one or more locale categories
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belonging to the same locale from the file named in the \fB-i\fR option (if
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specified) or from standard input.
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belonging to the same locale from the file named in the
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.Fl i
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option (if specified) or from standard input.
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.Pp
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Each category source definition is identified by the corresponding environment
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variable name and terminated by an
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.Sy END
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.Em category-name
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statement. The following categories are supported:
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.Bl -tag -width LC_MONETARY
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.It LC_CTYPE
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statement.
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The following categories are supported:
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.Bl -tag -width ".Ev LC_MONETARY"
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.It Ev LC_CTYPE
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Defines character classification and case conversion.
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.It LC_COLLATE
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.It Ev LC_COLLATE
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Defines collation rules.
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.It LC_MONETARY
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.It Ev LC_MONETARY
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Defines the format and symbols used in formatting of monetary information.
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.It LC_NUMERIC
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.It Ev LC_NUMERIC
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Defines the decimal delimiter, grouping and grouping symbol for non-monetary
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numeric editing.
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.It LC_TIME
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.It Ev LC_TIME
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Defines the format and content of date and time information.
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.It LC_MESSAGES
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.It Ev LC_MESSAGES
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Defines the format and values of affirmative and negative responses.
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.El
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.Pp
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The following options are supported:
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.Bl -tag -width xx_sourcefile
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.It -D
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BSD-style output. Rather than the default of creating the
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.Sy localename
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directory and creating files like LC_CTYPE, LC_COLLATE, etc, in that directory,
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the output files have the format "<localename>.<category>" and are
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dumped to the current directory.
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.It -c
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.Bl -tag -width indent
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.It Fl c
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Creates permanent output even if warning messages have been issued.
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.It -v
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Emit verbose debugging output on standard output.
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.It -U
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.It Fl D
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.Dx Ns -style
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output.
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Rather than the default of creating the
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.Ar localename
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directory and creating files like
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.Pa LC_CTYPE ,
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.Pa LC_COLLATE ,
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etc.\& in that directory,
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the output file names have the format
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.Dq <localename>.<category>
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and are dumped to the current directory.
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.It Fl f Ar charmap
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Specifies the pathname of a file containing a mapping of character symbols and
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collating element symbols to actual character encodings.
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This option must be specified if symbolic names (other than collating symbols
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defined in a
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.Sy collating-symbol
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keyword) are used.
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If the
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.Fl f
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option is not present, the default character mapping will be used.
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.It Fl i Ar sourcefile
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The path name of a file containing the source definitions.
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If this option is not present, source definitions will be read from
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standard input.
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.It Fl u Ar codeset
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Specifies the name of a codeset used as the target mapping of character symbols
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and collating element symbols whose encoding values are defined in terms of the
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ISO/IEC 10646-1:2000 standard position constant values.
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See
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.Sx NOTES .
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.It Fl U
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Ignore the presence of character symbols that have no matching character
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definition. This facilitates the use of a common locale definition file
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to be used across multiple encodings, even when some symbols are not
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present in a given encoding.
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.It -f charmap
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Specifies the pathname of a file containing a mapping of character symbols and
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collating element symbols to actual character encodings. This option must be
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specified if symbolic names (other than collating symbols defined in a
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.Sy collating-symbol
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keyword) are used. If the
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.Sy -f
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option is not present, the default character mapping will be used.
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.It -w widthfile
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.It Fl v
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Emit verbose debugging output on standard output.
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.It Fl w Ar widthfile
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The path name of the file containing character screen width definitions.
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If not supplied, then default screen widths will be assumed, which will
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generally not account for East Asian encodings requiring more than a single
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character cell to display, nor for combining or accent marks that occupy
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no additional screen width.
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.It -i sourcefile
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The path name of a file containing the source definitions. If this option is
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not present, source definitions will be read from standard input.
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.It -u codeset
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Specifies the name of a codeset used as the target mapping of character symbols
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and collating element symbols whose encoding values are defined in terms of the
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ISO/IEC 10646-1: 2000 standard position constant values. See NOTES.
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.El
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.Pp
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The following operands are required:
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.Bl -tag -width localename
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.It localename
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Identifies the locale. If the name contains one or more slash characters,
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.Bl -tag -width ".Ar localename"
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.It Ar localename
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Identifies the locale.
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If the name contains one or more slash characters,
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.Ar localename
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will be interpreted as a path name where the created locale
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definitions will be stored. This capability may be restricted to users with
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appropriate privileges. (As a consequence of specifying one
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definitions will be stored.
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This capability may be restricted to users with appropriate privileges.
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(As a consequence of specifying one
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.Ar localename ,
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although several categories can be processed in one execution, only categories
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belonging to the same locale can be processed.)
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.El
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.Sh OUTPUT
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.Nm
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creates a directory of files that represents the locale's data, unless instructed
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otherwise by the
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.Sy -D
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(BSD output) option. The contants of this directory should generally be
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copied into the appropriate subdirectory of /usr/share/locale in order the
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definitions to be visible to programs linked with libc.
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creates a directory of files that represents the locale's data,
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unless instructed otherwise by the
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.Fl D (
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.Dx
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output) option.
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The contants of this directory should generally be copied into the
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appropriate subdirectory of
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.Pa /usr/share/locale
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in order the definitions to be visible to programs linked with libc.
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.Sh ENVIRONMENT
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See
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.Xr Benviron 5
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for definitions of the following environment variables that affect the execution of
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.Xr environ 7
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for definitions of the following environment variables that affect the
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execution of
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.Nm :
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.Sy LANG ,
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.Sy LC_ALL ,
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.Sy LC_COLLATE ,
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.Sy LC_CTYPE ,
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.Sy LC_MESSAGES ,
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.Sy LC_MONETARY ,
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.Sy LC_MUMERIC ,
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.Sy LC_TIME ,
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.Ev LANG ,
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.Ev LC_ALL ,
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.Ev LC_COLLATE ,
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.Ev LC_CTYPE ,
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.Ev LC_MESSAGES ,
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.Ev LC_MONETARY ,
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.Ev LC_MUMERIC ,
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.Ev LC_TIME ,
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and
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.Sy NLSPATH .
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.Ev NLSPATH .
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.Sh EXIT STATUS
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The following exit values are returned:
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.Bl -tag -width XX
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@ -176,48 +195,53 @@ If an error is detected, no permanent output will be created.
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.Xr iconv_open 3 ,
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.Xr nl_langinfo 3 ,
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.Xr strftime 3 ,
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.Xr environ 5
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.Xr environ 7
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.Sh WARNINGS
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If warnings occur, permanent output will be created if the
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.Sy -c
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option was specified. The following conditions will cause warning messages to be issued:
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.Bl -tag -width X
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.It *
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.Fl c
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option was specified.
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The following conditions will cause warning messages to be issued:
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.Bl -bullet
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.It
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If a symbolic name not found in the
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.Em charmap
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.Pa charmap
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file is used for the descriptions of the
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.Sy LC_CTYPE
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or
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.Sy LC_COLLATE
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categories (for other categories, this will be an error condition).
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.It *
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.It
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If optional keywords not supported by the implementation are present in the
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source.
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.El
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.Sh NOTES
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When the
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.Sy -u
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.Fl u
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option is used, the
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.Em codeset
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.Ar codeset
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option-argument is interpreted as a name of a codeset to which the
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ISO/IEC 10646-1: 2000 standard position constant values are converted. Both the
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ISO/IEC 10646-1: 2000 standard position constant values and other formats (decimal,
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hexadecimal, or octal) are valid as encoding values within the charmap file. The
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codeset can be any codeset that is supported by the \fBiconv_open\fR(3C) function
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on the system.
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ISO/IEC 10646-1:2000 standard position constant values are converted.
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Both the ISO/IEC 10646-1:2000 standard position constant values and
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other formats (decimal, hexadecimal, or octal) are valid as encoding
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values within the charmap file.
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The
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.Ar codeset
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can be any codeset that is supported by the
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.Fn iconv_open 3
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function.
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.Pp
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When conflicts occur between the charmap specification of
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.Em codeset ,
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.Ar codeset ,
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.Em mb_cur_max ,
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or
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.Em mb_cur_min
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and the corresponding value for the codeset represented by the
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.Sy -u
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.Fl u
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option-argument
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.Em codeset ,
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.Ar codeset ,
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the
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.Nm
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utility fails as an error.
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utility fails with an error.
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.Pp
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When conflicts occur between the charmap encoding values specified for symbolic
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names of characters of the portable character set and the character encoding
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@ -225,13 +249,13 @@ values defined by the US-ASCII, the result is unspecified.
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.Sh HISTORY
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.Nm
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first appeared in
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.Dx
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4.4. It was ported from Illumos from the point
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.Dx 4.3 .
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It was ported from Illumos from the point
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.An Garrett D'Amore
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.Aq garrett@nexenta.com
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.Aq Mt garrett@nexenta.com
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added multibyte support (October 2010).
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.An John Marino
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.Aq draco@marino.st
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.Aq Mt draco@marino.st
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provided the alternations necessary to compile cleanly on
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.Dx
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as well as altered libc to use the new collation (the changes were also based
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