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68 lines
2.3 KiB
Plaintext
68 lines
2.3 KiB
Plaintext
.\" Copyright (c) Perry Rapp
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.\" Copyright (c) Free Software Foundation, Inc.
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.\"
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 3 of
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.\" the License, or (at your option) any later version.
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.\"
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.\" References consulted:
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.\" iconv.h
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.\"
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.TH ICONVCTL 3 "March 31, 2007" "GNU" "Linux Programmer's Manual"
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.SH NAME
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iconvctl \- control iconv behavior
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.SH SYNOPSIS
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.nf
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.B #include <iconv.h>
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.sp
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.BI "int iconvctl (iconv_t " cd " , int " request ", void * " argument );
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.fi
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.SH DESCRIPTION
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The argument \fIcd\fP must be a conversion descriptor created using the
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function \fBiconv_open\fP.
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.PP
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\fBiconvctl\fP queries or adjusts the behavior of the \fBiconv\fP function,
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when invoked with the specified conversion descriptor, depending on the
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request value.
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.SH "REQUEST VALUES"
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The following are permissible values for the \fIrequest\fP parameter.
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.TP
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.B ICONV_TRIVIALP
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\fIargument\fP should be an \fBint *\fP which will receive 1 if the
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conversion is trivial, or 0 otherwise.
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.TP
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.B ICONV_GET_TRANSLITERATE
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\fIargument\fP should be an \fBint *\fP which will receive 1 if
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transliteration is enabled in the conversion, or 0 otherwise.
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.TP
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.B ICONV_SET_TRANSLITERATE
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\fIargument\fP should be a \fBconst int *\fP, pointing to an \fBint\fP value.
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A non-zero value is used to enable transliteration in the conversion. A zero
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value disables it.
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.TP
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.B ICONV_GET_DISCARD_ILSEQ
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\fIargument\fP should be an \fBint *\fP which will receive 1 if
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"illegal sequence discard and continue" is enabled in the conversion,
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or 0 otherwise.
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.TP
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.B ICONV_SET_DISCARD_ILSEQ
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\fIargument\fP should be a \fBconst int *\fP, pointing to an \fBint\fP value.
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A non-zero value is used to enable "illegal sequence discard and continue"
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in the conversion. A zero value disables it.
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.SH "RETURN VALUE"
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The \fBiconvctl\fP function returns 0 if it succeeds. In case of error, it sets
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\fBerrno\fP and returns \-1.
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.SH ERRORS
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The following errors can occur, among others:
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.TP
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.B EINVAL
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The request is invalid.
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.SH "CONFORMING TO"
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This function is implemented only in GNU libiconv and not in other \fBiconv\fP
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implementations. It is not backed by a standard. You can test for its presence
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through \fB(_LIBICONV_VERSION >= 0x0108)\fP.
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.SH "SEE ALSO"
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.BR iconv_open (3)
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.BR iconv (3)
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