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72 lines
2.7 KiB
Markdown
72 lines
2.7 KiB
Markdown
% notcurses-info(1)
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% nick black <nickblack@linux.com>
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% v2.3.10
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# NAME
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notcurses-info - Display information about the terminal environment
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# SYNOPSIS
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**notcurses-info**
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# DESCRIPTION
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**notcurses-info** prints all the information it knows about the current
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terminal environment, including material loaded from **terminfo(5)** (based
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on the **TERM** environment variable), replies from the terminal in
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response to our queries, and built-in heuristics.
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The Unicode half block, quadrant, sextant, and Braille glyphs are all included
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in the output. If their appearance is irregular, it might behoove you to choose
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another font.
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The first five lines (the Notcurses initialization banner; see **notcurses_init(3)**)
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provide:
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* The Notcurses version and the derived terminal name, possibly including the
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terminal version. If Notcurses was able to unambiguously query the connected
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terminal, the internal name for the terminal will be shown. Otherwise, the
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terminal described by the **TERM** environment variable will be displayed.
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The terminal version is only acquired via query.
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* The current cell geometry, cell-pixel geometry, and the derived window pixel
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geometry, the size of the **crender** structure, the number of colors in the
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palette, and whether RGB TrueColor is supported.
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* The compiler name and version used to build Notcurses, the size of the
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**nccell** structure, and the endianness with which Notcurses was compiled.
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This buildtime endianness must match the runtime endianness.
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* The version of libterminfo against which Notcurses was compiled.
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* The version and name of the multimedia backend.
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The next five lines describe properties of the terminal environment:
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* The first line indicates that a given capability is present with a plus sign
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('+'), or not present/detected with a minus sign ('-'):
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* rgb: Colors can be specified as RGB wit eight bits/channel
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* ccc: Palette can be reprogrammed
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* af: Foreground color can be set
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* ab: Background color can be set
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* sum: Synchronized Update Mode is supported
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* u7: Cursor position reporting
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* cup: Cursor can be arbitrarily placed
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* vpa: Cursor can be moved to an absolute vertical coordinate
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* hpa: Cursor can be moved to an absolute horizontal coordinate
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* sgr0: Styling can be reset via a single escape
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* op: Colors can be reset via a single escape
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* fgop: Foreground can be reset via a single escape
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* bgop: Background can be reset via a single escape
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# OPTIONS
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# NOTES
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The behavior of **notcurses-info** (and indeed all of Notcurses) depends on
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the **TERM** and **LANG** environment variables, the installed POSIX locales,
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and the installed **terminfo(5)** databases.
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# SEE ALSO
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**tack(1)**,
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**notcurses(3)**,
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**terminfo(5)**
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