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Added 'plain_text' option + Added documenation for the $options parameter in the README. #122

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Added 'plain_text' option + Added documenation for the $options parameter in the README. #122

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195bc89
Added option 'plain_text'
seb303 Feb 20, 2024
dcfe82a
Added documentation for options parameter
seb303 Feb 20, 2024
2216140
Improved collapsing of excess whitespace
seb303 Feb 20, 2024
8d85323
Cleaned up regexp
seb303 Feb 21, 2024
12d07f5
plain_text option now also suppresses * for <li> or <dt>
seb303 Mar 26, 2024
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32 changes: 30 additions & 2 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -12,9 +12,37 @@ composer require html2text/html2text

## Basic Usage
```php
$html = new \Html2Text\Html2Text('Hello, &quot;<b>world</b>&quot;');
$html2text = new \Html2Text\Html2Text('Hello, &quot;<b>world</b>&quot;');

echo $html->getText(); // Hello, "WORLD"
echo $html2text->getText(); // Hello, "WORLD"
```

## Options

The constructor takes an optional 2nd parameter which is an array of options.
```php
$html2text = new \Html2Text\Html2Text(string $html, array $options = []);
```

Options and defaults are:
```php
[
'do_links' => 'inline', // 'none'
// 'inline' (show links inline)
// 'nextline' (show links on the next line)
// 'table' (if a table of link URLs should be listed after the text.
// 'bbcode' (show links as bbcode)

'width' => 70, // Maximum width of the formatted text, in columns.
// Set this value to 0 (or less) to ignore word wrapping
// and not constrain text to a fixed-width column.

'plain_text' => false, // If true then disables various pseudo formatting:
// No converting bold, th or headings to upper case.
// No character conversion to simulate strike through for <del>
// No adding _ around italic text (<i> <em> and <ins> tags)
// <hr> is replaced by "\n\n" rather than "\n-------------------------\n"
];
```

## History
Expand Down
58 changes: 55 additions & 3 deletions src/Html2Text.php
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Original file line number Diff line number Diff line change
Expand Up @@ -102,6 +102,38 @@ class Html2Text
'[\\2]', // <img> with alt tag
);

/**
* List of pattern replacements corresponding to patterns searched.
* Used with 'plain_text' option.
*
* @var array $replace
* @see $search
*/
protected $replace_plain = array(
'', // Non-legal carriage return
' ', // Newlines and tabs
'', // <head>
'', // <script>s -- which strip_tags supposedly has problems with
'', // <style>s -- which strip_tags supposedly has problems with
'\\1', // <i>
'\\1', // <em>
'\\1', // <ins>
"\n\n", // <ul> and </ul>
"\n\n", // <ol> and </ol>
"\n\n", // <dl> and </dl>
"\t\\1\n", // <li> and </li>
" \\1\n", // <dd> and </dd>
"\t\\1", // <dt> and </dt>
"\n\t* ", // <li>
"\n\n", // <hr>
"<div>\n", // <div>
"\n\n", // <table> and </table>
"\n", // <tr> and </tr>
"\t\t\\1\n", // <td> and </td>
"", // <span class="_html2text_ignore">...</span>
'[\\2]', // <img> with alt tag
);

/**
* List of preg* regular expression patterns to search for,
* used in conjunction with $entReplace.
Expand Down Expand Up @@ -222,6 +254,13 @@ class Html2Text
'width' => 70, // Maximum width of the formatted text, in columns.
// Set this value to 0 (or less) to ignore word wrapping
// and not constrain text to a fixed-width column.

'plain_text' => false, // If true then disables various pseudo formatting:
// No converting bold, th or headings to upper case.
// No character conversion to simulate strike through for <del>
// No adding _ around italic text (<i> <em> and <ins> tags)
// No adding * for <li> or <dt>
// <hr> is replaced by "\n\n" rather than "\n-------------------------\n"
);

private function legacyConstruct($html = '', $fromFile = false, array $options = array())
Expand Down Expand Up @@ -371,7 +410,11 @@ protected function converter(&$text)
{
$this->convertBlockquotes($text);
$this->convertPre($text);
$text = preg_replace($this->search, $this->replace, $text);
if ($this->options['plain_text']) {
$text = preg_replace($this->search, $this->replace_plain, $text);
} else {
$text = preg_replace($this->search, $this->replace, $text);
}
$text = preg_replace_callback($this->callbackSearch, array($this, 'pregCallback'), $text);
$text = strip_tags($text);
$text = preg_replace($this->entSearch, $this->entReplace, $text);
Expand All @@ -385,12 +428,15 @@ protected function converter(&$text)
$text = str_replace('|+|amp|+|', '&', $text);

// Normalise empty lines
$text = preg_replace("/\n\s+\n/", "\n\n", $text);
$text = preg_replace("/[\n]{3,}/", "\n\n", $text);
$text = preg_replace("/\n(\xC2\xA0|\s)+\n/", "\n\n", $text);
$text = preg_replace("/\n{3,}/", "\n\n", $text);

// remove leading empty lines (can be produced by eg. P tag on the beginning)
$text = ltrim($text, "\n");

// remove trailing white space
$text = preg_replace("/[(\xC2\xA0|\s)]+$/", "", $text);

if ($this->options['width'] > 0) {
$text = wordwrap($text, $this->options['width']);
}
Expand Down Expand Up @@ -611,6 +657,9 @@ protected function pregPreCallback(/** @noinspection PhpUnusedParameterInspectio
*/
protected function toupper($str)
{
if ($this->options['plain_text']) {
return $str;
}
// string can contain HTML tags
$chunks = preg_split('/(<[^>]*>)/', $str, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);

Expand Down Expand Up @@ -647,6 +696,9 @@ protected function strtoupper($str)
*/
protected function tostrike($str)
{
if ($this->options['plain_text']) {
return $str;
}
$rtn = '';
for ($i = 0; $i < mb_strlen($str); $i++) {
$chr = mb_substr($str, $i, 1);
Expand Down