mirror of
https://github.com/chubin/cheat.sh
synced 2024-11-12 22:37:06 +00:00
499 lines
16 KiB
Bash
499 lines
16 KiB
Bash
#!/bin/sh
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# Convert ANSI (terminal) colours and attributes to HTML
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# Licence: LGPLv2
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# Author:
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# http://www.pixelbeat.org/docs/terminal_colours/
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# Examples:
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# ls -l --color=always | ansi2html.sh > ls.html
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# git show --color | ansi2html.sh > last_change.html
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# Generally one can use the `script` util to capture full terminal output.
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# Changes:
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# V0.1, 24 Apr 2008, Initial release
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# V0.2, 01 Jan 2009, Phil Harnish <philharnish@gmail.com>
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# Support `git diff --color` output by
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# matching ANSI codes that specify only
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# bold or background colour.
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# P@draigBrady.com
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# Support `ls --color` output by stripping
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# redundant leading 0s from ANSI codes.
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# Support `grep --color=always` by stripping
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# unhandled ANSI codes (specifically ^[[K).
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# V0.3, 20 Mar 2009, http://eexpress.blog.ubuntu.org.cn/
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# Remove cat -v usage which mangled non ascii input.
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# Cleanup regular expressions used.
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# Support other attributes like reverse, ...
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# P@draigBrady.com
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# Correctly nest <span> tags (even across lines).
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# Add a command line option to use a dark background.
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# Strip more terminal control codes.
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# V0.4, 17 Sep 2009, P@draigBrady.com
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# Handle codes with combined attributes and color.
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# Handle isolated <bold> attributes with css.
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# Strip more terminal control codes.
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# V0.23, 22 Dec 2015
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# http://github.com/pixelb/scripts/commits/master/scripts/ansi2html.sh
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gawk --version >/dev/null || exit 1
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if [ "$1" = "--version" ]; then
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printf '0.22\n' && exit
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fi
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if [ "$1" = "--help" ]; then
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printf '%s\n' \
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'This utility converts ANSI codes in data passed to stdin
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It has 2 optional parameters:
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--bg=dark --palette=linux|solarized|tango|xterm
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E.g.: ls -l --color=always | ansi2html.sh --bg=dark > ls.html' >&2
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exit
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fi
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[ "$1" = "--bg=dark" ] && { dark_bg=yes; shift; }
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if [ "$1" = "--palette=solarized" ]; then
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# See http://ethanschoonover.com/solarized
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P0=073642; P1=D30102; P2=859900; P3=B58900;
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P4=268BD2; P5=D33682; P6=2AA198; P7=EEE8D5;
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P8=002B36; P9=CB4B16; P10=586E75; P11=657B83;
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P12=839496; P13=6C71C4; P14=93A1A1; P15=FDF6E3;
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shift;
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elif [ "$1" = "--palette=solarized-xterm" ]; then
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# Above mapped onto the xterm 256 color palette
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P0=262626; P1=AF0000; P2=5F8700; P3=AF8700;
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P4=0087FF; P5=AF005F; P6=00AFAF; P7=E4E4E4;
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P8=1C1C1C; P9=D75F00; P10=585858; P11=626262;
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P12=808080; P13=5F5FAF; P14=8A8A8A; P15=FFFFD7;
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shift;
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elif [ "$1" = "--palette=tango" ]; then
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# Gnome default
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P0=000000; P1=CC0000; P2=4E9A06; P3=C4A000;
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P4=3465A4; P5=75507B; P6=06989A; P7=D3D7CF;
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P8=555753; P9=EF2929; P10=8AE234; P11=FCE94F;
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P12=729FCF; P13=AD7FA8; P14=34E2E2; P15=EEEEEC;
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shift;
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elif [ "$1" = "--palette=xterm" ]; then
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P0=000000; P1=CD0000; P2=00CD00; P3=CDCD00;
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P4=0000EE; P5=CD00CD; P6=00CDCD; P7=E5E5E5;
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P8=7F7F7F; P9=FF0000; P10=00FF00; P11=FFFF00;
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P12=5C5CFF; P13=FF00FF; P14=00FFFF; P15=FFFFFF;
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shift;
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else # linux console
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P0=000000; P1=AA0000; P2=00AA00; P3=AA5500;
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P4=0000AA; P5=AA00AA; P6=00AAAA; P7=AAAAAA;
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P8=555555; P9=FF5555; P10=55FF55; P11=FFFF55;
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P12=5555FF; P13=FF55FF; P14=55FFFF; P15=FFFFFF;
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[ "$1" = "--palette=linux" ] && shift
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fi
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[ "$1" = "--bg=dark" ] && { dark_bg=yes; shift; }
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# Mac OSX's GNU sed is installed as gsed
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# use e.g. homebrew 'gnu-sed' to get it
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if ! sed --version >/dev/null 2>&1; then
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if gsed --version >/dev/null 2>&1; then
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alias sed=gsed
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else
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echo "Error, can't find an acceptable GNU sed." >&2
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exit 1
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fi
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fi
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printf '%s' "<html>
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<head>
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<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
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<link rel=\"search\" type=\"application/opensearchdescription+xml\" href=\"/files/opensearch.xml\" title=\"cheat.sh\" />
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<link rel=\"stylesheet\" type=\"text/css\" href=\"/files/style.css\" />
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<style type=\"text/css\">
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.ef0,.f0 { color: #$P0; } .eb0,.b0 { background-color: #$P0; }
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.ef1,.f1 { color: #$P1; } .eb1,.b1 { background-color: #$P1; }
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.ef2,.f2 { color: #$P2; } .eb2,.b2 { background-color: #$P2; }
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.ef3,.f3 { color: #$P3; } .eb3,.b3 { background-color: #$P3; }
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.ef4,.f4 { color: #$P4; } .eb4,.b4 { background-color: #$P4; }
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.ef5,.f5 { color: #$P5; } .eb5,.b5 { background-color: #$P5; }
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.ef6,.f6 { color: #$P6; } .eb6,.b6 { background-color: #$P6; }
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.ef7,.f7 { color: #$P7; } .eb7,.b7 { background-color: #$P7; }
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.ef8, .f0 > .bold,.bold > .f0 { color: #$P8; font-weight: normal; }
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.ef9, .f1 > .bold,.bold > .f1 { color: #$P9; font-weight: normal; }
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.ef10,.f2 > .bold,.bold > .f2 { color: #$P10; font-weight: normal; }
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.ef11,.f3 > .bold,.bold > .f3 { color: #$P11; font-weight: normal; }
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.ef12,.f4 > .bold,.bold > .f4 { color: #$P12; font-weight: normal; }
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.ef13,.f5 > .bold,.bold > .f5 { color: #$P13; font-weight: normal; }
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.ef14,.f6 > .bold,.bold > .f6 { color: #$P14; font-weight: normal; }
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.ef15,.f7 > .bold,.bold > .f7 { color: #$P15; font-weight: normal; }
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.eb8 { background-color: #$P8; }
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.eb9 { background-color: #$P9; }
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.eb10 { background-color: #$P10; }
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.eb11 { background-color: #$P11; }
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.eb12 { background-color: #$P12; }
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.eb13 { background-color: #$P13; }
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.eb14 { background-color: #$P14; }
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.eb15 { background-color: #$P15; }
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"
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# The default xterm 256 colour palette
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for red in 0 1 2 3 4 5 ; do
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for green in 0 1 2 3 4 5 ; do
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for blue in 0 1 2 3 4 5 ; do
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c=$((16 + ($red * 36) + ($green * 6) + $blue))
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r=$((($red * 40 + 55) * ($red > 0)))
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g=$((($green * 40 + 55) * ($green > 0)))
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b=$((($blue * 40 + 55) * ($blue > 0)))
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printf ".ef%d { color: #%2.2x%2.2x%2.2x; } " $c $r $g $b
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printf ".eb%d { background-color: #%2.2x%2.2x%2.2x; }\n" $c $r $g $b
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done
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done
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done
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for gray in $(seq 0 23); do
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c=$(($gray+232))
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l=$(($gray*10 + 8))
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printf ".ef%d { color: #%2.2x%2.2x%2.2x; } " $c $l $l $l
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printf ".eb%d { background-color: #%2.2x%2.2x%2.2x; }\n" $c $l $l $l
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done
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printf '%s' '
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.f9 { color: '`[ "$dark_bg" ] && printf "#$P7;" || printf "#$P0;"`' }
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.b9 { background-color: #'`[ "$dark_bg" ] && printf $P0 || printf $P15`'; }
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.f9 > .bold,.bold > .f9, body.f9 > pre > .bold {
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/* Bold is heavy black on white, or bright white
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depending on the default background */
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color: '`[ "$dark_bg" ] && printf "#$P15;" || printf "#$P0;"`'
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font-weight: '`[ "$dark_bg" ] && printf 'normal;' || printf 'bold;'`'
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}
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.reverse {
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/* CSS does not support swapping fg and bg colours unfortunately,
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so just hardcode something that will look OK on all backgrounds. */
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'"color: #$P0; background-color: #$P7;"'
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}
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.underline { text-decoration: underline; }
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.line-through { text-decoration: line-through; }
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.blink { text-decoration: blink; }
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/* Avoid pixels between adjacent span elements.
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Note this only works for lines less than 80 chars
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where we close span elements on the same line.
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span { display: inline-block; }
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*/
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</style>
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</head>
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<body class="">
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<pre>
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'
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p='\x1b\[' #shortcut to match escape codes
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# Handle various xterm control sequences.
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# See /usr/share/doc/xterm-*/ctlseqs.txt
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sed "
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# escape ampersand and quote
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s#&#\&#g; s#\"#\"#g;
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s#\x1b[^\x1b]*\x1b\\\##g # strip anything between \e and ST
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s#\x1b][0-9]*;[^\a]*\a##g # strip any OSC (xterm title etc.)
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s#\r\$## # strip trailing \r
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# strip other non SGR escape sequences
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s#[\x07]##g
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s#\x1b[]>=\][0-9;]*##g
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s#\x1bP+.\{5\}##g
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# Mark cursor positioning codes \"Jr;c;
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s#${p}\([0-9]\{1,2\}\)G#\"J;\1;#g
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s#${p}\([0-9]\{1,2\}\);\([0-9]\{1,2\}\)H#\"J\1;\2;#g
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# Mark clear as \"Cn where n=1 is screen and n=0 is to end-of-line
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s#${p}H#\"C1;#g
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s#${p}K#\"C0;#g
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# Mark Cursor move columns as \"Mn where n is +ve for right, -ve for left
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s#${p}C#\"M1;#g
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s#${p}\([0-9]\{1,\}\)C#\"M\1;#g
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s#${p}\([0-9]\{1,\}\)D#\"M-\1;#g
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s#${p}\([0-9]\{1,\}\)P#\"X\1;#g
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s#${p}[0-9;?]*[^0-9;?m]##g
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" |
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# Normalize the input before transformation
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sed "
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# escape HTML (ampersand and quote done above)
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s#>#\>#g; s#<#\<#g;
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# normalize SGR codes a little
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# split 256 colors out and mark so that they're not
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# recognised by the following 'split combined' line
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:e
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s#${p}\([0-9;]\{1,\}\);\([34]8;5;[0-9]\{1,3\}\)m#${p}\1m${p}¬\2m#g; t e
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s#${p}\([34]8;5;[0-9]\{1,3\}\)m#${p}¬\1m#g;
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:c
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s#${p}\([0-9]\{1,\}\);\([0-9;]\{1,\}\)m#${p}\1m${p}\2m#g; t c # split combined
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s#${p}0\([0-7]\)#${p}\1#g #strip leading 0
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s#${p}1m\(\(${p}[4579]m\)*\)#\1${p}1m#g #bold last (with clr)
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s#${p}m#${p}0m#g #add leading 0 to norm
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# undo any 256 color marking
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s#${p}¬\([34]8;5;[0-9]\{1,3\}\)m#${p}\1m#g;
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# map 16 color codes to color + bold
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s#${p}9\([0-7]\)m#${p}3\1m${p}1m#g;
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s#${p}10\([0-7]\)m#${p}4\1m${p}1m#g;
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# change 'reset' code to \"R
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s#${p}0m#\"R;#g
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" |
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# Convert SGR sequences to HTML
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sed "
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# common combinations to minimise html (optional)
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:f
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s#${p}3[0-7]m${p}3\([0-7]\)m#${p}3\1m#g; t f
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:b
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s#${p}4[0-7]m${p}4\([0-7]\)m#${p}4\1m#g; t b
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s#${p}3\([0-7]\)m${p}4\([0-7]\)m#<span class=\"f\1 b\2\">#g
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s#${p}4\([0-7]\)m${p}3\([0-7]\)m#<span class=\"f\2 b\1\">#g
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s#${p}1m#<span class=\"bold\">#g
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s#${p}4m#<span class=\"underline\">#g
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s#${p}5m#<span class=\"blink\">#g
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s#${p}7m#<span class=\"reverse\">#g
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s#${p}9m#<span class=\"line-through\">#g
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s#${p}3\([0-9]\)m#<span class=\"f\1\">#g
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s#${p}4\([0-9]\)m#<span class=\"b\1\">#g
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s#${p}38;5;\([0-9]\{1,3\}\)m#<span class=\"ef\1\">#g
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s#${p}48;5;\([0-9]\{1,3\}\)m#<span class=\"eb\1\">#g
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s#${p}[0-9;]*m##g # strip unhandled codes
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" |
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# Convert alternative character set and handle cursor movement codes
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# Note we convert here, as if we do at start we have to worry about avoiding
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# conversion of SGR codes etc., whereas doing here we only have to
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# avoid conversions of stuff between &...; or <...>
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#
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# Note we could use sed to do this based around:
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# sed 'y/abcdefghijklmnopqrstuvwxyz{}`~/▒␉␌␍␊°±␋┘┐┌└┼⎺⎻─⎼⎽├┤┴┬│≤≥π£◆·/'
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# However that would be very awkward as we need to only conv some input.
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# The basic scheme that we do in the awk script below is:
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# 1. enable transliterate once "T1; is seen
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# 2. disable once "T0; is seen (may be on diff line)
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# 3. never transliterate between &; or <> chars
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# 4. track x,y movements and active display mode at each position
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# 5. buffer line/screen and dump when required
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sed "
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# change 'smacs' and 'rmacs' to \"T1 and \"T0 to simplify matching.
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s#\x1b(0#\"T1;#g;
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s#\x0E#\"T1;#g;
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s#\x1b(B#\"T0;#g
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s#\x0F#\"T0;#g
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" |
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(
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gawk '
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function dump_line(l,del,c,blanks,ret) {
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for(c=1;c<maxX;c++) {
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if ((c SUBSEP l) in attr || length(cur)) {
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ret = ret blanks fixas(cur,attr[c,l])
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if(del) delete attr[c,l]
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blanks=""
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}
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if ((c SUBSEP l) in dump) {
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ret=ret blanks dump[c,l]
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if(del) delete dump[c,l]
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blanks=""
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} else blanks=blanks " "
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}
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if(length(cur)) ret=ret blanks
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return ret
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}
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function dump_screen(l,ret) {
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for(l=1;l<=maxY;l++)
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ret=ret dump_line(l,0) "\n"
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return ret fixas(cur, "")
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}
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function atos(a,i,ret) {
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for(i=1;i<=length(a);i++) if(i in a) ret=ret a[i]
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return ret
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}
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function fixas(a,s,spc,i,attr,rm,ret) {
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spc=length(a)
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l=split(s,attr,">")
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for(i=1;i<=spc;i++) {
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rm=rm?rm:(a[i]!=attr[i]">")
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if(rm) {
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ret=ret "</span>"
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delete a[i];
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}
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}
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for(i=1;i<l;i++) {
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attr[i]=attr[i]">"
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if(a[i]!=attr[i]) {
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a[i]=attr[i]
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ret = ret attr[i]
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}
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}
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return ret
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}
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function encode(string,start,end,i,ret,pos,sc,buf) {
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if(!end) end=length(string);
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if(!start) start=1;
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state=3
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for(i=1;i<=length(string);i++) {
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c=substr(string,i,1)
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if(state==2) {
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sc=sc c
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if(c==";") {
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c=sc
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state=last_mode
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} else continue
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} else {
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if(c=="\r") { x=1; continue }
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if(c=="<") {
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# Change attributes - store current active
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# attributes in span array
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split(substr(string,i),cord,">");
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i+=length(cord[1])
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span[++spc]=cord[1] ">"
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continue
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}
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else if(c=="&") {
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# All goes to single position till we see a semicolon
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sc=c
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state=2
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continue
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}
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else if(c=="\b") {
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# backspace move insertion point back 1
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if(spc) attr[x,y]=atos(span)
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x=x>1?x-1:1
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continue
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}
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else if(c=="\"") {
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split(substr(string,i+2),cord,";")
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cc=substr(string,i+1,1);
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if(cc=="T") {
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# Transliterate on/off
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if(cord[1]==1&&state==3) last_mode=state=4
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if(cord[1]==0&&state==4) last_mode=state=3
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}
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else if(cc=="C") {
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# Clear
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if(cord[1]+0) {
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# Screen - if Recording dump screen
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if(dumpStatus==dsActive) ret=ret dump_screen()
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dumpStatus=dsActive
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delete dump
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delete attr
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x=y=1
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} else {
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# To end of line
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for(pos=x;pos<maxX;pos++) {
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dump[pos,y]=" "
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if (!spc) delete attr[pos,y]
|
|
else attr[pos,y]=atos(span)
|
|
}
|
|
}
|
|
}
|
|
else if(cc=="J") {
|
|
# Jump to x,y
|
|
i+=length(cord[2])+1
|
|
# If line is higher - dump previous screen
|
|
if(dumpStatus==dsActive&&cord[1]<y) {
|
|
ret=ret dump_screen();
|
|
dumpStatus=dsNew;
|
|
}
|
|
x=cord[2]
|
|
if(length(cord[1]) && y!=cord[1]){
|
|
y=cord[1]
|
|
if(y>maxY) maxY=y
|
|
# Change y - start recording
|
|
dumpStatus=dumpStatus?dumpStatus:dsReset
|
|
}
|
|
}
|
|
else if(cc=="M") {
|
|
# Move left/right on current line
|
|
x+=cord[1]
|
|
}
|
|
else if(cc=="X") {
|
|
# delete on right
|
|
for(pos=x;pos<=maxX;pos++) {
|
|
nx=pos+cord[1]
|
|
if(nx<maxX) {
|
|
if((nx SUBSEP y) in attr) attr[pos,y] = attr[nx,y]
|
|
else delete attr[pos,y]
|
|
if((nx SUBSEP y) in dump) dump[pos,y] = dump[nx,y]
|
|
else delete dump[pos,y]
|
|
} else if(spc) {
|
|
attr[pos,y]=atos(span)
|
|
dump[pos,y]=" "
|
|
}
|
|
}
|
|
}
|
|
else if(cc=="R") {
|
|
# Reset attributes
|
|
while(spc) delete span[spc--]
|
|
}
|
|
i+=length(cord[1])+2
|
|
continue
|
|
}
|
|
else if(state==4&&i>=start&&i<=end&&c in Trans) c=Trans[c]
|
|
}
|
|
if(dumpStatus==dsReset) {
|
|
delete dump
|
|
delete attr
|
|
ret=ret"\n"
|
|
dumpStatus=dsActive
|
|
}
|
|
if(dumpStatus==dsNew) {
|
|
# After moving/clearing we are now ready to write
|
|
# something to the screen so start recording now
|
|
ret=ret"\n"
|
|
dumpStatus=dsActive
|
|
}
|
|
if(dumpStatus==dsActive||dumpStatus==dsOff) {
|
|
dump[x,y] = c
|
|
if(!spc) delete attr[x,y]
|
|
else attr[x,y] = atos(span)
|
|
if(++x>maxX) maxX=x;
|
|
}
|
|
}
|
|
# End of line if dumping increment y and set x back to first col
|
|
x=1
|
|
if(!dumpStatus) return ret dump_line(y,1);
|
|
else if(++y>maxY) maxY=y;
|
|
return ret
|
|
}
|
|
BEGIN{
|
|
OFS=FS
|
|
# dump screen status
|
|
dsOff=0 # Not dumping screen contents just write output direct
|
|
dsNew=1 # Just after move/clear waiting for activity to start recording
|
|
dsReset=2 # Screen cleared build new empty buffer and record
|
|
dsActive=3 # Currently recording
|
|
F="abcdefghijklmnopqrstuvwxyz{}`~"
|
|
T="▒␉␌␍␊°±␋┘┐┌└┼⎺⎻─⎼⎽├┤┴┬│≤≥π£◆·"
|
|
maxX=80
|
|
delete cur;
|
|
x=y=1
|
|
for(i=1;i<=length(F);i++)Trans[substr(F,i,1)]=substr(T,i,1);
|
|
}
|
|
|
|
{ $0=encode($0) }
|
|
1
|
|
END {
|
|
if(dumpStatus) {
|
|
print dump_screen();
|
|
}
|
|
}'
|
|
)
|
|
|
|
printf '</pre>
|
|
</body>
|
|
</html>\n'
|