| 1 |
7876
|
aaronmk
|
<?php
|
| 2 |
8361
|
aaronmk
|
function coalesce($value, $empty) { return isset($value) ? $value : $empty; }
|
| 3 |
|
|
|
| 4 |
7876
|
aaronmk
|
function starts_with($str, $prefix)
|
| 5 |
|
|
{
|
| 6 |
|
|
return substr($str, 0, strlen($prefix)) === $prefix;
|
| 7 |
|
|
}
|
| 8 |
|
|
|
| 9 |
|
|
function ends_with($str, $suffix)
|
| 10 |
|
|
{
|
| 11 |
|
|
return substr($str, -strlen($suffix)) === $suffix;
|
| 12 |
|
|
}
|
| 13 |
|
|
|
| 14 |
|
|
function rm_prefix($prefix, $str)
|
| 15 |
|
|
{
|
| 16 |
|
|
return starts_with($str, $prefix) ? substr($str, strlen($prefix)) : $str;
|
| 17 |
|
|
}
|
| 18 |
|
|
|
| 19 |
|
|
function rm_suffix($suffix, $str)
|
| 20 |
|
|
{
|
| 21 |
|
|
return ends_with($str, $suffix) ?
|
| 22 |
|
|
substr($str, 0, strlen($str) - strlen($suffix)) : $str;
|
| 23 |
|
|
}
|
| 24 |
|
|
|
| 25 |
7955
|
aaronmk
|
function ensure_prefix($prefix, $str)
|
| 26 |
|
|
{
|
| 27 |
|
|
return starts_with($str, $prefix) ? $str : $prefix.$str;
|
| 28 |
|
|
}
|
| 29 |
|
|
|
| 30 |
|
|
function ensure_suffix($suffix, $str)
|
| 31 |
|
|
{
|
| 32 |
|
|
return ends_with($str, $suffix) ? $str : $str.$suffix;
|
| 33 |
|
|
}
|
| 34 |
|
|
|
| 35 |
7876
|
aaronmk
|
class Path
|
| 36 |
|
|
{
|
| 37 |
|
|
public $head;
|
| 38 |
|
|
public $tail;
|
| 39 |
|
|
|
| 40 |
7901
|
aaronmk
|
function Path($head, $tail="")
|
| 41 |
7876
|
aaronmk
|
{
|
| 42 |
|
|
$this->head = $head;
|
| 43 |
|
|
$this->tail = $tail;
|
| 44 |
|
|
}
|
| 45 |
|
|
}
|
| 46 |
|
|
|
| 47 |
|
|
function partition($str, $delim)
|
| 48 |
|
|
{
|
| 49 |
7898
|
aaronmk
|
$delim_idx = strpos($str, $delim);
|
| 50 |
7897
|
aaronmk
|
return $delim_idx !== false ? new Path(substr($str, 0, $delim_idx),
|
| 51 |
7901
|
aaronmk
|
substr($str, $delim_idx+strlen($delim))) : new Path($str);
|
| 52 |
7876
|
aaronmk
|
}
|
| 53 |
|
|
|
| 54 |
7908
|
aaronmk
|
function array_non_empty($array)
|
| 55 |
|
|
{
|
| 56 |
|
|
foreach ($array as $key => $value)
|
| 57 |
|
|
if (!isset($value) || $value === "") unset($array[$key]);
|
| 58 |
|
|
return $array;
|
| 59 |
|
|
}
|
| 60 |
|
|
|
| 61 |
|
|
function join_non_empty($delim, $array)
|
| 62 |
|
|
{
|
| 63 |
|
|
return implode($delim, array_non_empty($array));
|
| 64 |
|
|
}
|
| 65 |
|
|
|
| 66 |
7876
|
aaronmk
|
function parse_dot_path($path) { return partition($path, "."); }
|
| 67 |
|
|
|
| 68 |
|
|
function parse_mixed_path($path)
|
| 69 |
|
|
{
|
| 70 |
|
|
preg_match('/^([\w-]*)(.*)$/', $path, $path);
|
| 71 |
|
|
return new Path($path[1], rm_prefix(".", $path[2]));
|
| 72 |
|
|
}
|
| 73 |
|
|
|
| 74 |
|
|
function strip_url($url) { return rm_suffix("#", $url); }
|
| 75 |
|
|
?>
|
