contributions/tricks/update-placeholders.php

<?php

// Execute
//      for i in *.po ; do php update-placeholders.php $i ; done
// on the command line


$argv = $GLOBALS['argv'];
array_shift ($argv);
if (count($argv)) {
  $file = $argv[0];
} else {
  echo "No parameters given.";
  exit;
}

$variables = array();

$po = file_get_contents($file);
$po = preg_replace('~"\\n"~i', '', $po);
$po = explode("\n", $po);


foreach ($po as $num => $line) {
  $content = array();
  $line = trim($line);
  
  if (preg_match('~^msgstr "(.*)"$~i', $line, $content)) {
    $placeholders = array();
    $variables = array();
    
    if (preg_match_all('~[!@%][a-z-_]+~i', $po[$num - 1], $placeholders)) {
      foreach ($placeholders[0] as $placeholder) {
        $variables[substr($placeholder, 1)] = $placeholder{0};
      }

      $line = preg_replace_callback('~[!@%]([a-z-_]+)~i', 'replace_placeholder', $line);
    }
  }

  $output .= $line . "\n";
}

$output = preg_replace('~\\\\n(?!"\\n)~i', "\\n\"\n\"", $output);

$fp = fopen($file, 'w+');
fwrite($fp, $output);
fclose($fp);


echo 'Updated '. $file . "\n";


function replace_placeholder($matches) {
  global $variables;
  
  $variable = $matches[1];

  if (isset($variables[$variable])) {
    return $variables[$variable] . $variable;
  }
  else {
    return $matches[0];
  }
}
1	<?php
2
3	// Execute
4	// for i in *.po ; do php update-placeholders.php $i ; done
5	// on the command line
6
7
8	$argv = $GLOBALS['argv'];
9	array_shift ($argv);
10	if (count($argv)) {
11	$file = $argv[0];
12	} else {
13	echo "No parameters given.";
14	exit;
15	}
16
17	$variables = array();
18
19	$po = file_get_contents($file);
20	$po = preg_replace('~"\\n"~i', '', $po);
21	$po = explode("\n", $po);
22
23
24	foreach ($po as $num => $line) {
25	$content = array();
26	$line = trim($line);
27
28	if (preg_match('~^msgstr "(.*)"$~i', $line, $content)) {
29	$placeholders = array();
30	$variables = array();
31
32	if (preg_match_all('~[!@%][a-z-_]+~i', $po[$num - 1], $placeholders)) {
33	foreach ($placeholders[0] as $placeholder) {
34	$variables[substr($placeholder, 1)] = $placeholder{0};
35	}
36
37	$line = preg_replace_callback('~[!@%]([a-z-_]+)~i', 'replace_placeholder', $line);
38	}
39	}
40
41	$output .= $line . "\n";
42	}
43
44	$output = preg_replace('~\\\\n(?!"\\n)~i', "\\n\"\n\"", $output);
45
46	$fp = fopen($file, 'w+');
47	fwrite($fp, $output);
48	fclose($fp);
49
50
51	echo 'Updated '. $file . "\n";
52
53
54	function replace_placeholder($matches) {
55	global $variables;
56
57	$variable = $matches[1];
58
59	if (isset($variables[$variable])) {
60	return $variables[$variable] . $variable;
61	}
62	else {
63	return $matches[0];
64	}
65	}