<?php

/* SPDX-License-Identifier: GPL-3.0-or-later */

use JetBrains\PhpStorm\NoReturn;

function list_files(string $dir): array {

return array_diff(scandir($dir), array('..', '.'));

}

function list_files_recursive(string $dir) : array {

if ($dir[strlen($dir) - 1] != '/') $dir = $dir . '/';

$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir));

$paths = array();

foreach ($iterator as $file) {

// Ignore .. and .

$pathname = $file->getPathname();

$last_segment = substr($pathname, strrpos($pathname, '/') + 1);

if ($last_segment == '..') continue;

$relative_path = str_replace($dir, '', $pathname);

if ($relative_path == '.') continue; // Ignore this directory

if ($last_segment == '.') $relative_path = substr($relative_path, 0, strlen($relative_path) - 1);

$paths[] = $relative_path;

}

return $paths;

}

// https://developer.android.com/guide/topics/resources/string-resource.html#FormattingAndStyling

function android_escape(string $string): string {

return strtr($string, array('@' => '\@', '?' => '\?', '<' => '&lt;', '>' => '&gt;', '"' => '\"', "'" => "\'", '&' => '&amp;'));

}

function android_escape_slash(string $string) : string {

return strtr($string, array('@' => '\@', '?' => '\?', '<' => '&lt;', '>' => '&gt;', '"' => '\"', "'" => "\'", '&' => '&amp;', '\\' => '\\\\'));

}

function android_escape_slash_newline(string $string) : string {

return strtr($string, array('@' => '\@', '?' => '\?', '<' => '&lt;', '>' => '&gt;', '"' => '\"', "'" => "\'", '&' => '&amp;', '\\' => '\\\\', "\n" => '\n'));

}

function android_escape_slash_newline_reverse(string $string) : string {

return strtr($string, array('\@' => '@', '\?' => '?', '&lt;' => '<', '&gt;' => '>', '\"' => '"', "\'" => "'", '&amp;' => '&', '\\\\' => '\\', '\n' => "\n"));

}

#[NoReturn]

function syntax_error_with_position(string $path, string $texts, int $position, string $error_message = "Syntax error"): void {

$lines = explode("\n", $texts);

$line_no = 0;

foreach ($lines as $line) {

++$line_no;

$len = strlen($line);

if ($len > $position) {

break;

}

$position -= ($len + 1);

}

fprintf(STDERR, "\e[41;1mError:\e[0m %s near $path:$line_no:%d \n", $error_message, abs($position));

exit(1);

}