mirror of
https://github.com/eth-p/bat-extras.git
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86 lines
2.1 KiB
Bash
86 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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# -----------------------------------------------------------------------------
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# bat-extras | Copyright (C) 2019 eth-p | MIT License
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#
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# Repository: https://github.com/eth-p/bat-extras
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# Issues: https://github.com/eth-p/bat-extras/issues
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# -----------------------------------------------------------------------------
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# Printf, but with optional colors.
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# This uses the same syntax and arguments as printf.
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#
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# Example:
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# printc "%{RED}This is red %s.%{CLEAR}\n" "text"
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#
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printc() {
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printf "$(sed "$_PRINTC_PATTERN" <<< "$1")" "${@:2}"
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}
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# Initializes the color tags for printc.
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#
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# Arguments:
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# true -- Turns on color output.
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# false -- Turns off color output.
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printc_init() {
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case "$1" in
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true) _PRINTC_PATTERN="$_PRINTC_PATTERN_ANSI";;
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false) _PRINTC_PATTERN="$_PRINTC_PATTERN_PLAIN";;
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"") {
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_PRINTC_PATTERN_ANSI=""
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_PRINTC_PATTERN_PLAIN=""
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local name
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local ansi
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while read -r name ansi; do
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if [[ -z "${name}" && -z "${ansi}" ]] || [[ "${name:0:1}" = "#" ]]; then
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continue
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fi
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ansi="$(sed 's/\\/\\\\/' <<< "$ansi")"
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_PRINTC_PATTERN_PLAIN="${_PRINTC_PATTERN_PLAIN}s/%{${name}}//g;"
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_PRINTC_PATTERN_ANSI="${_PRINTC_PATTERN_ANSI}s/%{${name}}/${ansi}/g;"
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done
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if [ -t 1 ]; then
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_PRINTC_PATTERN="$_PRINTC_PATTERN_ANSI"
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else
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_PRINTC_PATTERN="$_PRINTC_PATTERN_PLAIN"
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fi
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};;
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esac
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}
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# Print a warning message to STDERR.
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# Arguments:
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# 1 -- The printc formatting string.
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# ... -- The printc formatting arguments.
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print_warning() {
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printc "%{YELLOW}[%s warning]%{CLEAR}: $1%{CLEAR}\n" "$PROGRAM" "${@:2}" 1>&2
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}
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# Print an error message to STDERR.
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# Arguments:
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# 1 -- The printc formatting string.
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# ... -- The printc formatting arguments.
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print_error() {
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printc "%{RED}[%s error]%{CLEAR}: $1%{CLEAR}\n" "$PROGRAM" "${@:2}" 1>&2
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}
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# -----------------------------------------------------------------------------
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# Initialization:
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# -----------------------------------------------------------------------------
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printc_init <<END
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CLEAR \x1B[0m
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RED \x1B[31m
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GREEN \x1B[32m
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YELLOW \x1B[33m
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BLUE \x1B[34m
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MAGENTA \x1B[35m
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CYAN \x1B[36m
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DIM \x1B[2m
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END
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