vasilito
6f1a1a274e
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
137 lines
4.2 KiB
Plaintext
137 lines
4.2 KiB
Plaintext
.TH QRENCODE 1 "Aug. 28, 2020" "qrencode @VERSION@"
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.SH NAME
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qrencode \- Encode input data in a QR Code and save as a PNG or EPS image.
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.SH SYNOPSIS
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.B "qrencode"
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[-o FILENAME]
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[OPTION]...
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[STRING]
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.SH DESCRIPTION
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Libqrencode is a library for encoding data in a QR Code symbol, a kind of 2D
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symbology that can be scanned by handy terminals such as a mobile phone with
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CCD. The capacity of QR Code is up to 7000 digits or 4000 characters, and has
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high robustness.
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Qrencode is a utility software using libqrencode to encode string data in
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a QR Code and save as a PNG or EPS image.
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.SH OPTIONS
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.TP
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.B \-h, \-\-help
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display help message.
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.TP
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.B \-o FILENAME, \-\-output=FILENAME
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write image to FILENAME. If '\-' is specified, the result will be output to standard output. If \-S is given, structured symbols are written to FILENAME-01.png, FILENAME-02.png, ... (suffix is removed from FILENAME, if specified)
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.TP
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.B \-r FILENAME, \-\-read\-from=FILENAME
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read input data from FILENAME.
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.TP
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.B \-s NUMBER, \-\-size=NUMBER
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specify the size of dot (pixel). (default=3)
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.TP
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.B \-l {LMQH}, \-\-level={LMQH}
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specify error correction level from L (lowest) to H (highest). (default=L)
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.TP
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.B \-v NUMBER, \-\-symversion=NUMBER
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specify the minimum version of the symbol. See SYMBOL VERSIONS for more information. (default=auto)
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.TP
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.B \-m NUMBER, \-\-margin=NUMBER
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specify the width of margin. (default=4)
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.TP
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.B \-d NUMBER, \-\-dpi=NUMBER
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specify the DPI of the generated PNG. (default=72)
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.TP
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.PD 0
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.B \-t {PNG,PNG32,EPS,SVG,XPM,ANSI,ANSI256,ASCII,ASCIIi,UTF8,UTF8i,ANSIUTF8,ANSIUTF8i,ANSI256UTF8}
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.TP
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.PD
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.B \-\-type={PNG,PNG32,EPS,SVG,XPM,ANSI,ANSI256,ASCII,ASCIIi,UTF8,UTF8i,ANSIUTF8,ANSIUTF8i,ANSI256UTF8}
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specify the type of the generated image. (default=PNG)
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.TP
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.B \-S, \-\-structured
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make structured symbols. Version number must be specified with '-v'.
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.TP
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.B \-k, \-\-kanji
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assume that the input text contains kanji (shift-jis).
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.TP
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.B \-c, \-\-casesensitive
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encode lower-case alphabet characters in 8-bit mode. (default)
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.TP
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.B \-i, \-\-ignorecase
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ignore case distinctions and use only upper-case characters.
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.TP
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.B \-8, \-\-8bit
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encode entire data in 8-bit mode. \-k, \-c and \-i will be ignored.
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.TP
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.B \-M, \-\-micro
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encode in a Micro QR Code. See MICRO QR CODE for more information.
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.TP
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.B \-\-rle
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enable run-length encoding for SVG.
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.TP
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.B \-\-svg-path
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use single path to draw modules for SVG.
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.TP
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.B \-\-inline
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only useful for SVG output, generates an SVG without the XML tag.
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.TP
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.PD 0
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.B \-\-foreground=RRGGBB[AA]
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.TP
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.PD
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.B \-\-background=RRGGBB[AA]
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specify foreground/background color in hexadecimal notation.
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6-digit (RGB) or 8-digit (RGBA) form are supported.
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Color output support available only in PNG, EPS and SVG.
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.TP
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.B \-\-strict\-version
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disable automatic version number adjustment. If the input data is
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too large for the specified version, the program exits with the
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code of 1.
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.TP
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.B \-V, \-\-version
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display the version number and copyrights of the qrencode.
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.TP
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.B \-\-verbose
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display verbose information to stderr.
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.TP
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.B [STRING]
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input data. If it is not specified, data will be taken from standard input.
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.SH SYMBOL VERSIONS
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The symbol versions of QR Code range from Version 1 to Version 40.
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Each version has a different module configuration or number of modules,
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ranging from Version 1 (21 x 21 modules) up to Version 40 (177 x 177 modules).
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Each higher version number comprises 4 additional modules per side by default.
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See http://www.qrcode.com/en/about/version.html for a detailed version list.
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.SH MICRO QR CODE
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With Micro QR Code, You can embed data in a smaller area than with QR Code,
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but the data capacity is strongly limited. The symbol versions range from
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Version 1 to 4.
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.SH EXAMPLES
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.TP
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.B qrencode \-l L \-v 1 \-o output.png 'Hello, world!'
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encode into a symbol version 1, level L.
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.TP
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.B qrencode \-iSv 1 \-\-output=output.png
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read standard input and encode it into a structured-appended symbols in
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case-insensitive mode.
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.TP
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.B qrencode \-S \-v 40 \-l L \-r bigfile.txt \-o output.png
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read input data from bigfile.txt and encode into a symbol version 40, level L.
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.SH AUTHOR
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Written by Kentaro Fukuchi.
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.SH RESOURCES
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.TP
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Main Web Site: https://fukuchi.org/works/qrencode/
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.TP
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Source code repository: https://github.com/fukuchi/libqrencode/
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.SH COPYRIGHT
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Copyright (C) 2006-2018 Kentaro Fukuchi.
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