74 lines
2.1 KiB
Bash
Executable File
74 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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function usage {
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echo ' High Beam Highlighter
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- a trial to create a very generic modifyable
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syntax highlighter.
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Example rules: ( ~/.highbeamrc )
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--------------------
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RULES=(
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"[0-9]" "$C" # Show numbers with Cyan color. NOTE: since the colors are represented with numbers, having this later in the rules will break coloring!
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"$USER[ ]\+$USER" "$BGC$BLACK" # Use quotes to have rules with spaces. This colors the "ls -la" usernames. background cyan, black text
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status "$G" # simple word matching, coloring green
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"^d[^ ]*" "$H$G" # color words at the beginning of line, starting with d. color bright green
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"q.\{0,3\}r" "$H$Y" # q*r with maximum 3 characters in between. color bright yellow
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)
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--------------------
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Color variables: $R $G $B $Y $M $C $W $BLACK
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Modify to bright version by prefixing with $H (e.g. $H$G)
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Background colors: $BGR $BGG $BGB $BGY $BGC $BGM $BGW
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'
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}
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[[ "$1" = "-h" ]] && usage && exit
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E='\x1b['
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H="${E}1m"
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Z="${E}0m"
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# list of text colors:
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BLACK="${E}30m"
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R="${E}31m"
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G="${E}32m"
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B="${E}34m"
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Y="${E}33m"
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M="${E}35m"
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C="${E}36m"
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W="${E}37m"
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# list of BG colors:
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BGR="${E}41m"
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BGG="${E}42m"
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BGB="${E}44m"
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BGY="${E}43m"
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BGM="${E}45m"
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BGC="${E}46m"
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BGW="${E}47m"
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# user rules:
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[[ -e ~/.highbeamrc ]] && . ~/.highbeamrc || echo You may have wrong construction in .highbeamrc >&2 || exit
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[[ -e ~/.highbeamrc ]] || {
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# list of rules
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RULES=(
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"[0-9]" "$C" # Show numbers with Cyan color. NOTE: since the colors are represented with numbers, having this later in the rules will break coloring!
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"$USER[ ]\+$USER" "$BGC$BLACK" # Use quotes to have rules with spaces. background cyan, black text
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status "$G" # simple word matching, coloring green
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"^d[^ ]*" "$H$G" # color words at the beginning of line, starting with d. color bright green
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"q.\{0,3\}r" "$H$Y" # q*r with maximum 3 characters in between. color bright yellow
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)
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}
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# actual code starts here
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for (( r=0; r<${#RULES[@]}; r++ ));
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do REGEX="$REGEX -e 's/\(${RULES[$r]}\)/${RULES[$(( $r + 1 ))]}\1${Z}/ig'"
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r=$(( $r + 1 ))
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done
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eval sed $REGEX || echo Maybe error in .highbeamrc >&2
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