piconv.1

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

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.\" ========================================================================
.\"
.IX Title "PICONV 1"
.TH PICONV 1 "2008-01-23" "perl v5.10.0" "Perl Programmers Reference Guide"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
piconv \-\- iconv(1), reinvented in perl
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 7
\&  piconv [\-f from_encoding] [\-t to_encoding] [\-s string] [files...]
\&  piconv \-l
\&  piconv [\-C N|\-c|\-p]
\&  piconv \-S scheme ...
\&  piconv \-r encoding
\&  piconv \-D ...
\&  piconv \-h
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBpiconv\fR is perl version of \fBiconv\fR, a character encoding converter
widely available for various Unixen today.  This script was primarily
a technology demonstrator for Perl 5.8.0, but you can use piconv in the
place of iconv for virtually any case.
.PP
piconv converts the character encoding of either \s-1STDIN\s0 or files
specified in the argument and prints out to \s-1STDOUT\s0.
.PP
Here is the list of options.  Each option can be in short format (\-f)
or long (\-\-from).
.IP "\-f,\-\-from from_encoding" 4
.IX Item "-f,--from from_encoding"
Specifies the encoding you are converting from.  Unlike \fBiconv\fR,
this option can be omitted.  In such cases, the current locale is used.
.IP "\-t,\-\-to to_encoding" 4
.IX Item "-t,--to to_encoding"
Specifies the encoding you are converting to.  Unlike \fBiconv\fR,
this option can be omitted.  In such cases, the current locale is used.
.Sp
Therefore, when both \-f and \-t are omitted, \fBpiconv\fR just acts
like \fBcat\fR.
.IP "\-s,\-\-string \fIstring\fR" 4
.IX Item "-s,--string string"
uses \fIstring\fR instead of file for the source of text.
.IP "\-l,\-\-list" 4
.IX Item "-l,--list"
Lists all available encodings, one per line, in case-insensitive
order.  Note that only the canonical names are listed; many aliases
exist.  For example, the names are case-insensitive, and many standard
and common aliases work, such as \*(L"latin1\*(R" for \*(L"\s-1ISO\-8859\-1\s0\*(R", or \*(L"ibm850\*(R"
instead of \*(L"cp850\*(R", or \*(L"winlatin1\*(R" for \*(L"cp1252\*(R".  See Encode::Supported
for a full discussion.
.IP "\-C,\-\-check \fIN\fR" 4
.IX Item "-C,--check N"
Check the validity of the stream if \fIN\fR = 1.  When \fIN\fR = \-1, something
interesting happens when it encounters an invalid character.
.IP "\-c" 4
.IX Item "-c"
Same as \f(CW\*(C`\-C 1\*(C'\fR.
.IP "\-p,\-\-perlqq" 4
.IX Item "-p,--perlqq"
.PD 0
.IP "\-\-htmlcref" 4
.IX Item "--htmlcref"
.IP "\-\-xmlcref" 4
.IX Item "--xmlcref"
.PD
Applies \s-1PERLQQ\s0, \s-1HTMLCREF\s0, \s-1XMLCREF\s0, respectively.  Try
.Sp
.Vb 1
\&  piconv \-f utf8 \-t ascii \-\-perlqq
.Ve
.Sp
To see what it does.
.IP "\-h,\-\-help" 4
.IX Item "-h,--help"
Show usage.
.IP "\-D,\-\-debug" 4
.IX Item "-D,--debug"
Invokes debugging mode.  Primarily for Encode hackers.
.IP "\-S,\-\-scheme scheme" 4
.IX Item "-S,--scheme scheme"
Selects which scheme is to be used for conversion.  Available schemes
are as follows:
.RS 4
.IP "from_to" 4
.IX Item "from_to"
Uses Encode::from_to for conversion.  This is the default.
.IP "decode_encode" 4
.IX Item "decode_encode"
Input strings are \fIdecode()\fRd then \fIencode()\fRd.  A straight two-step
implementation.
.IP "perlio" 4
.IX Item "perlio"
The new perlIO layer is used.  \s-1NI\-S\s0' favorite.
.Sp
You should use this option if you are using \s-1UTF\-16\s0 and others which
linefeed is not $/.
.RE
.RS 4
.Sp
Like the \fI\-D\fR option, this is also for Encode hackers.
.RE
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\*(L"1\*(R" in iconv
\&\*(L"3\*(R" in locale
Encode
Encode::Supported
Encode::Alias
PerlIO