rootiest
02c46ebea7
Folds the examples Section 5 carried but the headers did not into each function's `# EXAMPLE`, and moves the three lines that only looked like examples -- the two typo-abbreviation notes and rm's /usr/bin/rm fallback -- into `# NOTES`, the label already in use. Also corrects gi's synopsis, which omitted -l, and documents yt-dlp's --no-embed-thumbnail in `# ARGUMENTS`.
59 lines
2.1 KiB
Fish
59 lines
2.1 KiB
Fish
# Copyright (C) 2026 Rootiest
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# CATEGORY
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# 13-media-and-utilities
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#
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# SYNOPSIS
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# spark [--min=<n>] [--max=<n>] [numbers...]
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#
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# DESCRIPTION
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# Renders a Unicode sparkline bar chart for a sequence of numbers.
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# Reads numbers from arguments or from stdin if none are provided.
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# Optional --min and --max clamp the scale range.
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#
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# ARGUMENTS
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# --min=<n> Minimum value for scale (default: list minimum)
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# --max=<n> Maximum value for scale (default: list maximum)
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# numbers... Space-separated numbers to chart; reads stdin if omitted
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# -v, --version Print version
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# -h, --help Show usage help
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#
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# EXAMPLE
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# spark 1 1 2 5 14 42
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# seq 64 | sort --random-sort | spark
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# echo "3 7 2 9 1" | spark
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function spark --description 'Sparklines'
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argparse --ignore-unknown --name=spark v/version h/help m/min= M/max= -- $argv || return
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if set --query _flag_version[1]
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echo "spark, version 1.1.0"
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else if set --query _flag_help[1]
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echo "Usage: spark <numbers ...>"
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echo " stdin | spark"
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echo "Options:"
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echo " --min=<number> Minimum range"
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echo " --max=<number> Maximum range"
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echo " -v or --version Print version"
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echo " -h or --help Print this help message"
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echo "Examples:"
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echo " spark 1 1 2 5 14 42"
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echo " seq 64 | sort --random-sort | spark"
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else if set --query argv[1]
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printf "%s\n" $argv | spark --min="$_flag_min" --max="$_flag_max"
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else
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command awk -v min="$_flag_min" -v max="$_flag_max" '
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{
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m = min == "" ? m == "" ? $0 : m > $0 ? $0 : m : min
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M = max == "" ? M == "" ? $0 : M < $0 ? $0 : M : max
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nums[NR] = $0
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}
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END {
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n = split("▁ ▂ ▃ ▄ ▅ ▆ ▇ █", sparks, " ") - 1
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while (++i <= NR)
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printf("%s", sparks[(M == m) ? 3 : sprintf("%.f", (1 + (nums[i] - m) * n / (M - m)))])
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}
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' && echo
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end
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end
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