' ]; $position = 0; foreach ($icon_file_paths as $path) { $icon = preg_replace('/>\s+<', file_get_contents($path)); preg_match('/([^\/]+)\.svg$/', $path, $m); $icon_file_name = $m[1]; preg_match('/(.+)<\/svg>/s', $icon, $m); $svg_attributes = $m[1]; $svg_contents = $m[2]; preg_match_all('/(\S+?)="(.+?)"/s', $svg_attributes, $m, PREG_SET_ORDER); $viewBox = ''; $icon_attributes = array_filter($m, function ($match) use (&$viewBox) { if ($match[1] == 'viewBox') $viewBox = $match[2]; return (str_starts_with($match[1], 'xmlns:') == false); }); $icon_attributes = array_combine(array_column($icon_attributes, 1), array_column($icon_attributes, 2)); if ($viewBox == '') { ## If there is no `viewBox` attribute, but we do have both the `width` ## and `height` attributes set, then we can simply set the viewBox from ## the width and height (setting the origin to be 0,0). if ( isset($icon_attributes['width']) && isset($icon_attributes['height'])) { $viewBox = "0 0 {$icon_attributes['width']} {$icon_attributes['height']}"; unset($icon_attributes['width']); unset($icon_attributes['height']); } else { preg_match('/[^\/]+$/', $path, $m); echo "WARNING: Icon `{$m[0]}` has invalid or missing viewBox attribute (and no width+height attributes); skipping.\n"; continue; } } $viewBox = explode(' ', $viewBox); $translateX = $position - floatval($viewBox[0]); $transform = "translate({$translateX}, 0)"; $viewBox[0] = $position; $position += floatval($viewBox[2]) * $iconSpacingFactor; $viewBox = implode(' ', $viewBox); $out[] = ""; ## If the SVG has a `transform` attribute on the element itself, we ## must move it to nested a wrapper ; otherwise, it will conflict with ## the transform we must apply to the icon contents to position it within ## the file. if (isset($icon_attributes['transform'])) { $svg_contents = "" + $svg_contents + ""; unset($icon_attributes['transform']); } $icon_attributes = implode(' ', array_map(function ($key) use (&$icon_attributes) { return "{$key}=\"{$icon_attributes[$key]}\""; }, array_keys($icon_attributes))); $out[] = "' . $svg_contents . ""; } $out[] = ''; ## Write out icon sprite file. file_put_contents($icon_file_path, implode("\n", $out) . "\n"); $updated_files[] = $icon_file_path; ?>