Update html.php

For acept text in line-height how "line-height:normal", etc.

Author: joelgo

src/PhpWord/Shared/Html.php

@@ -661,7 +661,21 @@ protected static function parseStyle($attribute, $styles)
                     break;
                 case 'line-height':
                     $matches = array();
-                    if (preg_match('/([0-9]+\.?[0-9]*[a-z]+)/', $cValue, $matches)) {
+                    if (preg_match('/([a-z]+)/', $cValue, $matches)) {
+                        //$cvalue text and not number
+                        if($cValue == 'normal') {
+                            $cValue = 1.12;
+                            $spacingLineRule = \PhpOffice\PhpWord\SimpleType\LineSpacingRule::AUTO;
+                            //we are subtracting 1 line height because the Spacing writer is adding one line
+                            $spacing = ($cValue * Paragraph::LINE_HEIGHT) - Paragraph::LINE_HEIGHT;
+                        }else{
+                            $cValue = 1.13;
+                            $spacingLineRule = \PhpOffice\PhpWord\SimpleType\LineSpacingRule::AUTO;
+                            //we are subtracting 1 line height because the Spacing writer is adding one line
+                            $spacing = ($cValue * Paragraph::LINE_HEIGHT) - Paragraph::LINE_HEIGHT;
+                        }
+                    }
+                    elseif (preg_match('/([0-9]+\.?[0-9]*[a-z]+)/', $cValue, $matches)) {
                         //matches number with a unit, e.g. 12px, 15pt, 20mm, ...
                         $spacingLineRule = \PhpOffice\PhpWord\SimpleType\LineSpacingRule::EXACT;
                         $spacing = Converter::cssToTwip($matches[1]);