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667 lines
16 KiB
667 lines
16 KiB
7 years ago
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<?php
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namespace MightyPork\Utils;
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use MightyPork\Exceptions\FormatException;
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use Illuminate\Support\Collection;
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use Log;
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class Str extends \Illuminate\Support\Str
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{
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/**
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* Split and trim
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*
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* TODO unit test
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*
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* @param string $haystack string to split
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* @param string|string[] $delimiters delimiter
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* @return array pieces, trimmed.
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*/
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public static function splitTrim($haystack, $delimiters=[',', ';', '|'])
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{
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$haystack = trim($haystack);
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if (strlen($haystack) == 0) return [];
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return array_map('trim', self::split($haystack, $delimiters));
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}
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/**
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* Split a string using one or more delimiters
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*
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* TODO unit test
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*
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* @param string $haystack
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* @param string|array $delimiters
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* @return array
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*/
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public static function split($haystack, $delimiters)
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{
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if (is_string($delimiters)) {
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return explode($delimiters, $haystack);
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}
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// make sure it's array
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if (!is_array($delimiters)) {
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$delimiters = [$delimiters];
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}
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// helper
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$regex_escape = function ($x) {
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return preg_quote($x, '/');
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};
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// compose splitting regex
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$reg = "/" . implode('|', array_map($regex_escape, $delimiters)) . "/";
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return preg_split($reg, $haystack);
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}
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/**
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* Split "CSV" string to items, trim each item.
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* Empty values at start and end are discarded.
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*
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* TODO unit test
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*
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* @param string $str
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* @return array items
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*/
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public static function splitCsv($str)
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{
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return array_map('trim', explode(',', trim($str, ',')));
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}
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/**
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* Pad an integer to 2 digit
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*
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* TODO unit test
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*
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* @param int $int the number
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* @return string padded with zero
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*/
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public static function pad2($int)
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{
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return sprintf("%02d", $int);
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}
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/**
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* Remove diacritics from a string
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*
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* TODO unit test
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*
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* @param string $str
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* @return string ascii
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*/
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public static function asciify($str)
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{
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return iconv('UTF-8', 'US-ASCII//TRANSLIT', $str);
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}
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/**
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* Public for unit tests
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*
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* Convert mask to regex
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*
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* @param $mask
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* @return mixed|string
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*/
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public static function _pregMaskPrepare($mask)
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{
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$mask = preg_quote($mask);
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// number = repeat
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$mask = preg_replace('#(?<![.*+,{\d\\\\]|^)(\d+)#', '{$1}', $mask); // can repeat ?
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$mask = strtr($mask, [
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'\?' => '?',
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'\*' => '*',
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'\+' => '+',
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'\{' => '{',
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'\}' => '}',
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'\(' => '(',
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'\)' => ')',
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'd' => '\d',
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'F' => '-?\d+(\.\d+)?',
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'D' => '-?\d+',
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'a' => '[[:alpha:]]',
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'\\\\' => '\\',
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]);
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$mask = strtr($mask, [
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'\\\\' => '\\',
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]);
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return $mask;
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}
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/**
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* Match a string against a mask.
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*
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* Special symbols:
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* - `*` repeat previous any number of times
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* - `?` previous is optional
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* - `()` grouping
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* - `a` alpha
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* - `d` digit
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* - `F` float value d, d.ddd with optional leading -
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* - `+` repeat previous symbol any number of times
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* - Number - repeat N times
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* - {N}, {M,N} - repeat n times, like in regex
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*
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* Any other characters are matched literally.
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*
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* @param string $mask mask to match against
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* @param string $string tested string
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* @return bool matches
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*/
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public static function maskMatch($mask, $string)
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{
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$mask = self::_pregMaskPrepare($mask);
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return 1 === preg_match('|^' . $mask . '$|u', $string);
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}
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/**
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* Format a string with {0} {foo} or {}
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*
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* TODO unit test
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*
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* @param string $format
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* @param array ...$args substitutions. Can also be an explicit array.
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* @return string
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*/
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public static function format($format, ...$args)
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{
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$args = func_get_args();
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$format = array_shift($args);
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// explicit array given
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if (is_array($args[0])) {
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$args = $args[0];
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}
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$format = preg_replace_callback('#\{\}#', function () {
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static $i = 0;
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return '{' . ($i++) . '}';
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}, $format);
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return str_replace(
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array_map(function ($k) {
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return '{' . $k . '}';
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}, array_keys($args)),
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array_values($args),
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$format
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);
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}
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/**
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* Remove whitespace on the left side of a block.
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* This function is quite expensive, so it's recommended
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* to cache the result, if possible.
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*
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* <b>NOTE:</b> The current implementation converts all leading tabs to spaces.
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*
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* @param string $txt text to trim
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* @param int $tab_size number of spaces per tab, default 4
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* @param bool $ltrim_nl remove a leading newline
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* @param bool $ign_noindent ignore lines with zero indentation
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* @return string left-trimmed block.
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*/
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public static function unindentBlock($txt, $tab_size = 4, $ltrim_nl = true, $ign_noindent = true)
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{
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$pad = 1024; // max indent size
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$tabsp = str_repeat(' ', $tab_size);
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if ($ltrim_nl) {
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// also make sure first line is not blank
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$txt = ltrim($txt, "\n");
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}
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$txt = preg_replace_callback('/^([ \t]*)(?=[^ \t\n]|$)/m',
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function ($m) use (&$pad, $tabsp, $ign_noindent) {
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static $i = 0;
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$indent = $m[1];
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if ($indent == '' && $ign_noindent) {
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// no indentation, perhaps stripped by editor?
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return '';
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}
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// normalize tab to 4 spaces
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$normalized = strtr($indent, ["\t" => $tabsp]);
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$len = strlen($normalized);
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$pad = min($pad, $len);
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$i++;
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return $normalized;
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},
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$txt
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);
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return preg_replace("/^ {{$pad}}/m", '', $txt);
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}
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/**
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* Get a simple string representation of an array, similar to json_encode(),
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* except without the obnoxious quotes and escapes.
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*
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* @param array $array
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* @return string [a, b, c]
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*/
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public static function arr($array)
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{
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if ($array instanceof Collection || Utils::isAssoc($array)) {
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$x = '[';
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foreach ($array as $k => $v) {
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$x .= "$k:" . json_encode($v) . ', ';
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}
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$x = rtrim($x, ', ') . ']';
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return $x;
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} else {
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return '[' . implode(', ', collect($array)->map(function ($x) {
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return is_array($x) ? json_encode($x, JSON_UNESCAPED_UNICODE) : (string) $x;
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})->toArray()) . ']';
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}
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}
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/**
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* Get substring from last occurrence of token
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*
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* TODO unit test
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*
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* @param string $token token delimiting the last chunk from left. Not included.
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* @param string $haystack
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* @return string part of haystack after token.
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*/
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public static function fromLast($token, $haystack)
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{
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$rpos = strrpos($haystack, $token);
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if ($rpos === false) return $haystack;
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return substr($haystack, $rpos + strlen($token));
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}
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public static function rpad($str, $len, $fill = ' ')
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{
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$filln = max(0, $len - mb_strlen($str));
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return $str . str_repeat(mb_substr($fill, 0, 1), $filln);
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}
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public static function lpad($str, $len, $fill = ' ')
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{
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$filln = max(0, $len - mb_strlen($str));
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return str_repeat(mb_substr($fill, 0, 1), $filln) . $str;
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}
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/**
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* Remove wrapping quotes from a string.
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* C-slashes will also be removed.
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*
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* @param $str
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* @return string
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*/
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public static function unquote($str)
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{
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if (!$str || !is_string($str)) {
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return $str;
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}
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$a = $str[0];
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$b = $str[strlen($str) - 1];
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if ($a == $b && $a == '"' || $b == "'") {
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$str = substr($str, 1, strlen($str) - 2);
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}
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$str = stripcslashes($str);
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return $str;
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}
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/**
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* Apply a rewrite.
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*
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* - Simple foo|bar rewrites 0|1 (or false|true)
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* - Key-value rewrite is possible with 7=foo|9=bar
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* - '*' (asterisk) matches everything (9=foo|*=other)
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* - '\*' - match literal asterisk
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* - starts with % - format using sprintf
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* - Compare funcs can also be used: lt, gt, le, ge, range, in
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* example: lt(100)=Foo|range(100,200)=Bar|gt(200)=Baz
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*
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* @param mixed $value value from expression
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* @param string $rewrite rewrite patterns, | separated
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* @return mixed result to show
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*/
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public static function rewrite($value, $rewrite)
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{
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// TODO předělat na jednodušší zápis
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if ($rewrite[0] == '%') return sprintf($rewrite, $value);
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$rewrite_map = [];
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foreach (explode('|', trim($rewrite)) as $i => $rw) {
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$ar = preg_split('/(?<![\\\\])=/', $rw);
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if (count($ar) == 2) {
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// key value pair
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$key = trim(str_replace('\=', '=', $ar[0]));
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$rewrite_map[$key] = trim(str_replace('\=', '=', $ar[1]));
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} elseif (count($ar) == 1) {
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// literal rewrite
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$rewrite_map[$i] = $rw;
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} else {
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Log::warning("Invalid rewrite format: $rw");
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return $value; // don't rewrite it
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}
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}
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// apply the rewrite if any
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foreach ($rewrite_map as $k => $replacement) {
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if (is_numeric($k) && (((int)$k == (int)$value) || abs((float)$k - (float)$value)<0.00001)) {
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// exact match
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return $replacement;
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}
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else if (($k==='true'||$k==='false') && (Utils::parseBool($k) == Utils::parseBool($value))) {
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// bool match
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return $replacement;
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}
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else if (preg_match('/([a-z]+)\(([^)]+)\)/i', $k, $mm)) {
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// we have a comparing function
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if (static::testCompareFunc($value, $mm[1], $mm[2])) {
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return $replacement;
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}
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}
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else if ($k === '*') {
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return $replacement; // catch-all
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}
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else if ($k === '\\*') {
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if ($value === '*') {
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return $replacement; // literal asterisk
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}
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}
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}
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return $value;
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}
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/**
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* Check if compare function matches value, copied from FB2
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*
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* @param mixed $value value to format
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* @param string $func function name
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* @param mixed $argument extra argument for the func
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* @return bool
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*/
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private static function testCompareFunc($value, $func, $argument)
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{
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$value_f = floatval($value);
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$arg_f = floatval($argument);
|
||
|
|
|
||
|
|
$fun = trim(strtolower($func));
|
||
|
|
switch ($fun) {
|
||
|
|
case 'lt':
|
||
|
|
return $value_f < $arg_f;
|
||
|
|
case 'gt':
|
||
|
|
return $value_f > $arg_f;
|
||
|
|
case 'le':
|
||
|
|
return $value_f <= $arg_f;
|
||
|
|
case 'ge':
|
||
|
|
return $value_f >= $arg_f;
|
||
|
|
case 'eq':
|
||
|
|
return $value_f == $arg_f; // this is kinda useless, but to make the set complete
|
||
|
|
|
||
|
|
case 'range': // range(-10,0) = zima
|
||
|
|
$bounds = array_map(function ($x) {
|
||
|
|
return floatval(trim($x));
|
||
|
|
}, explode(',', $argument));
|
||
|
|
|
||
|
|
if (count($bounds) != 2) {
|
||
|
|
Log::error("Invalid range bounds: $argument");
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $value_f >= $bounds[0] && $value_f < $bounds[1];
|
||
|
|
|
||
|
|
case 'in': // in(10,20,30) = 10, 20 or 30 *funguje i pro string in(ZAP,VYP) = ZAP nebo VYP
|
||
|
|
$bounds = array_map('trim', explode(',', $argument));
|
||
|
|
return in_array(trim($value), $bounds);
|
||
|
|
|
||
|
|
default:
|
||
|
|
Log::error("Invalid rewrite function: $func");
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Apply multiple sets of substitutions to a format and get all the results.
|
||
|
|
*
|
||
|
|
* @param string $format Format same as for Str::format(). Fields are marked {}, {0} or {key}
|
||
|
|
* @param array $subs_arrays array of arrays of substitutions - eg. [[a1, b1], [a2, b2], ...]
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public static function mapFormat($format, $subs_arrays)
|
||
|
|
{
|
||
|
|
$gather = [];
|
||
|
|
foreach ($subs_arrays as $subs) {
|
||
|
|
if (!is_array($subs)) $subs = [$subs];
|
||
|
|
$gather[] = Str::format($format, $subs);
|
||
|
|
}
|
||
|
|
return $gather;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Find all needle positions within a haystack
|
||
|
|
*
|
||
|
|
* @param string $haystack
|
||
|
|
* @param string $needle
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public static function findPositions($haystack, $needle)
|
||
|
|
{
|
||
|
|
$lastPos = 0;
|
||
|
|
$positions = [];
|
||
|
|
|
||
|
|
while (($lastPos = strpos($haystack, $needle, $lastPos)) !== false) {
|
||
|
|
$positions[] = $lastPos;
|
||
|
|
$lastPos = $lastPos + strlen($needle);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $positions;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Discard positions in a string that are preceded by an unescaped backslash.
|
||
|
|
*
|
||
|
|
* @param string $str
|
||
|
|
* @param int[] $positions
|
||
|
|
* @return int[]
|
||
|
|
*/
|
||
|
|
public static function discardEscapedPositions($str, array $positions)
|
||
|
|
{
|
||
|
|
$actualPos = [];
|
||
|
|
foreach ($positions as $pos) {
|
||
|
|
if ($pos >= 1) {
|
||
|
|
if ($str[$pos - 1] == '\\') {
|
||
|
|
if ($pos >= 2 && $str[$pos - 2] == '\\') {
|
||
|
|
// escaped backslash before - it's a valid quote
|
||
|
|
} else {
|
||
|
|
// this quote is escaped
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$actualPos[] = $pos;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $actualPos;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Split a string at given positions
|
||
|
|
*
|
||
|
|
* @param string $string
|
||
|
|
* @param int[] $positions
|
||
|
|
* @return string[]
|
||
|
|
*/
|
||
|
|
public static function splitAt($string, $positions)
|
||
|
|
{
|
||
|
|
$chunks = [];
|
||
|
|
array_push($positions, strlen($string));
|
||
|
|
array_unshift($positions, -1);
|
||
|
|
|
||
|
|
foreach ($positions as $i => $position) {
|
||
|
|
if ($position >= strlen($string)) break;
|
||
|
|
$chunks[] = substr($string, $position + 1, $positions[$i + 1] - $position - 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $chunks;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Split a string to pieces by commas, ignoring commas within strings delimited by double quotes.
|
||
|
|
* A double quote can be escaped using a backslash.
|
||
|
|
*
|
||
|
|
* @param string $str
|
||
|
|
* @param string $delimiter
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
public static function splitCommandArgs($str, $delimiter = ',')
|
||
|
|
{
|
||
|
|
if ($str === '') return [];
|
||
|
|
|
||
|
|
// Find unescaped quotes
|
||
|
|
$quotes = Str::findPositions($str, '"');
|
||
|
|
$quotes = Str::discardEscapedPositions($str, $quotes);
|
||
|
|
|
||
|
|
if (count($quotes) % 2 != 0) {
|
||
|
|
throw new FormatException("Unmatched quote in command arguments: $str");
|
||
|
|
}
|
||
|
|
|
||
|
|
$commas = Str::findPositions($str, $delimiter);
|
||
|
|
$commas = Utils::discardPositionsWithinPairs($commas, $quotes);
|
||
|
|
|
||
|
|
$chunks = Str::splitAt($str, $commas);
|
||
|
|
|
||
|
|
$arr = collect($chunks)->trim()->toArray();
|
||
|
|
|
||
|
|
return $arr;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get substring to first match of a token
|
||
|
|
*
|
||
|
|
* @param string $token token delimiting the parts
|
||
|
|
* @param string $haystack full string
|
||
|
|
* @return string portion of the string until the first token; or the whole string if token is not present.
|
||
|
|
*/
|
||
|
|
public static function toFirst($token, $haystack)
|
||
|
|
{
|
||
|
|
$lpos = strpos($haystack, $token);
|
||
|
|
if ($lpos === false) return $haystack;
|
||
|
|
return substr($haystack, 0, $lpos);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get substring from first match of a token
|
||
|
|
*
|
||
|
|
* @param string $token token delimiting the parts
|
||
|
|
* @param string $haystack full string
|
||
|
|
* @return string portion of the string until the first token; or empty string if token is not present.
|
||
|
|
*/
|
||
|
|
public static function fromFirst($token, $haystack, $exclusive = false)
|
||
|
|
{
|
||
|
|
$lpos = strpos($haystack, $token);
|
||
|
|
if ($lpos === false) return '';
|
||
|
|
return substr($haystack, $lpos+($exclusive?1:0));
|
||
|
|
}
|
||
|
|
|
||
|
|
public static function toLast($token, $haystack)
|
||
|
|
{
|
||
|
|
$rpos = strrpos($haystack, $token);
|
||
|
|
if ($rpos === false) return $haystack;
|
||
|
|
return self::substr($haystack, 0, $rpos);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Check if translation exists
|
||
|
|
*
|
||
|
|
* @param string $descrKey tested transl key
|
||
|
|
* @return bool exists
|
||
|
|
*/
|
||
|
|
public static function translationExists($descrKey)
|
||
|
|
{
|
||
|
|
$tr = trans($descrKey);
|
||
|
|
return !preg_match('/^(\w+\.)+(\w+)$/', $tr);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Expand array of strings using bash-style repeat patterns {a,b,c}, {from..to}
|
||
|
|
*
|
||
|
|
* ie. to produce ad1 to ad4, use ad{1..4}. Supports multiple patterns, producing all permutations.
|
||
|
|
*
|
||
|
|
* @param string|string[] $sourceStrings
|
||
|
|
* @return string[]
|
||
|
|
*/
|
||
|
|
public static function expandBashRepeat($sourceStrings)
|
||
|
|
{
|
||
|
|
if (is_string($sourceStrings)) $sourceStrings = [$sourceStrings];
|
||
|
|
$outputs = [];
|
||
|
|
foreach($sourceStrings as $str) {
|
||
|
|
$i=0;
|
||
|
|
$arrays = [];
|
||
|
|
$str2 = preg_replace_callback('/\{([^{}]+)\}/', function($m) use(&$i, &$arrays) {
|
||
|
|
$seq = explode(',',$m[1]);
|
||
|
|
if(count($seq)>=2) {
|
||
|
|
$arrays[$i] = $seq;
|
||
|
|
} else {
|
||
|
|
$ab = explode('..',$m[1]);
|
||
|
|
if (!$ab) { return $m[0]; }
|
||
|
|
$a = intval($ab[0]);
|
||
|
|
$b = intval($ab[1]);
|
||
|
|
$arrays[$i] = range($a, $b);
|
||
|
|
}
|
||
|
|
|
||
|
|
return '{{'.($i++).'}}';
|
||
|
|
}, $str);
|
||
|
|
|
||
|
|
$strs = [$str2];
|
||
|
|
for($n=count($arrays)-1;$n>=0;$n--) {
|
||
|
|
$arr = $arrays[$n];
|
||
|
|
$tmpstrs = [];
|
||
|
|
|
||
|
|
foreach($arr as $subs) {
|
||
|
|
foreach($strs as $ss) {
|
||
|
|
$tmpstrs[] = str_replace('{{'.$n.'}}', $subs, $ss);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$strs = $tmpstrs;
|
||
|
|
}
|
||
|
|
|
||
|
|
$outputs = array_merge($outputs, $strs);
|
||
|
|
}
|
||
|
|
return $outputs;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Remove trailing commas from JSON string
|
||
|
|
*
|
||
|
|
* @param string $str
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public static function cleanJson($str)
|
||
|
|
{
|
||
|
|
return preg_replace('/,\s*([}\]])/s','\1', $str);
|
||
|
|
}
|
||
|
|
|
||
|
|
public static function ellipsis($str, $maxlen)
|
||
|
|
{
|
||
|
|
$len = mb_strlen($str);
|
||
|
|
if ($len > $maxlen) {
|
||
|
|
return mb_substr($str, 0, $maxlen) . '…';
|
||
|
|
}
|
||
|
|
|
||
|
|
return $str;
|
||
|
|
}
|
||
|
|
}
|