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@gingerbeardman
Last active December 8, 2021 13:02
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Generates CSS for custom fonts on the Sony Reader PRS series, normalising the size of fonts using the inverse of the Asc+Desc metric
#!/usr/bin/env php
<?php
// requirements: python, pip
// dependencies: font-line
// installation:
// sudo -H python -m ensurepip
// sudo -H pip install font-line
// setup:
// script should sit alongside folders full of font families
// usage:
// call this script without any parameters
$which = (count($argv) == 1) ? "*" : $argv[1];
$dirs = glob($which, GLOB_ONLYDIR);
foreach ($dirs as $folder) {
echo "\n";
echo "Folder:\t$folder\n";
$files = glob("$folder/*");
echo "Files:\t".count($files)."\n";
$regular = @reset(preg_grep('/-Regular\.(ttf|otf)$/i', $files));
$bold = @reset(preg_grep('/-(Bold|SemiBold)\.(ttf|otf)$/i', $files));
if (!$bold) $bold = $regular;
$italic = @reset(preg_grep('/-Italic\.(ttf|otf)$/i', $files));
$bolditalic = @reset(preg_grep('/-(BoldItalic|SemiBoldItalic)\.(ttf|otf)$/i', $files));
if (!$bolditalic) $bolditalic = $italic;
$familyname = $folder;
echo "Ratio:\t";
$ratio = system("bc -l <<< \"scale=2;$(font-line report ".str_replace(' ', '\ ', $folder)."/* | grep --text 'hhea Asc + Desc' | grep -o -E '[0-9\.]+' | paste -s -d+ - | bc)/4\"");
$resize = round(1 / $ratio, 2);
echo "\n";
// begin formatted CSS
$css = <<<CSS
@page {
margin-bottom: 0.5em;
margin-left: 0.5em;
margin-right: 0.5em;
margin-top: 1em;
}
@font-face {
font-family: "$familyname";
font-weight: normal;
font-style: normal;
src: url(res:///Data/fonts/$regular);
}
@font-face {
font-family: "$familyname";
font-weight: bold;
font-style: normal;
src: url(res:///Data/fonts/$bold);
}
@font-face {
font-family: "$familyname";
font-weight: normal;
font-style: italic;
src: url(res:///Data/fonts/$italic);
}
@font-face {
font-family: "$familyname";
font-weight: bold;
font-style: italic;
src: url(res:///Data/fonts/$bolditalic);
}
body {
font-family: "$familyname";
font-size: {$resize}em;
}
CSS;
// end formatted CSS
file_put_contents("../database/system/PRSPlus/epub/$familyname.css", $css);
}
echo "Total:\t".count($dirs)."\n\n";
?>
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