57 lines
1.6 KiB
Raku
Executable file
57 lines
1.6 KiB
Raku
Executable file
#!/usr/bin/env raku
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#| print arguments or stdin as superscript
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unit sub MAIN(*@args);
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# char ranges {{{
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my %uc = (
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A => 'ᴬ', B => 'ᴮ', D => 'ᴰ', E => 'ᴱ', G => 'ᴳ', H => 'ᴴ', I => 'ᴵ',
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J => 'ᴶ', K => 'ᴷ', L => 'ᴸ', M => 'ᴹ', N => 'ᴺ', O => 'ᴼ', P => 'ᴾ',
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R => 'ᴿ', T => 'ᵀ', U => 'ᵁ', W => 'ᵂ'
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);
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my %lc = (
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a => 'ᵃ', b => 'ᵇ', c => 'ᶜ', d => 'ᵈ', e => 'ᵉ', f => 'ᶠ',
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g => 'ᵍ', h => 'ʰ', i => 'ⁱ', j => 'ʲ', k => 'ᵏ', l => 'ˡ',
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m => 'ᵐ', n => 'ⁿ', o => 'ᵒ', p => 'ᵖ', r => 'ʳ', s => 'ˢ',
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t => 'ᵗ', u => 'ᵘ', v => 'ᵛ', w => 'ʷ', x => 'ˣ', y => 'ʸ',
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z => 'ᶻ'
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);
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my %num = (
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0 => '⁰', 1 => '¹', 2 => '²', 3 => '³',
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([4..9] Z ['⁴'..'⁹']).Map
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);
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my %other = ('!' => 'ꜝ', '.' => '·', '(' => '⁽', ')' => '⁾');
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# }}}
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my %caseless = %lc, %num, %other;
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my %cased = %uc, %caseless;
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sub rejects(@chars, %map) { @chars.grep(* ∉ %map).unique.join(', ') }
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sub non-ws($str) { $str.comb.grep(* !~~ /\s/) }
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sub shrink(Str $str) {
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my $str-lc = lc $str;
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my @chars = non-ws $str;
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my @lc-chars = non-ws $str-lc;
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my $cased-rejects = rejects @chars, %cased;
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my $caseless-rejects = rejects @lc-chars, %caseless;
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if !$cased-rejects {
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$str.trans: %cased
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} elsif !$caseless-rejects {
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note "using lowercase because no superscripts for $cased-rejects";
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$str-lc.trans: %caseless;
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} else {
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note "no superscripts for $caseless-rejects";
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""
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}
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}
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if @args > 0 {
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say shrink @args.join: ' '
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} else {
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say shrink $_ for $*IN.lines
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}
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# vim: set ft=little fdm=marker :
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