Add parser option to skip HTML to Text down conversion

jhillyerd · May 3, 2024 · 6578c9b · 6578c9b
1 parent 5139f90
commit 6578c9b
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Showing 3 changed files with 14 additions and 1 deletion.
diff --git a/envelope.go b/envelope.go
@@ -196,7 +196,7 @@ func (p Parser) EnvelopeFromPart(root *Part) (*Envelope, error) {
 	}
 
 	// Down-convert HTML to text if necessary
-	if e.Text == "" && e.HTML != "" {
+	if e.Text == "" && e.HTML != "" && !p.skipHTML2TextDownConversion {
 		// We always warn when this happens
 		e.Root.addWarning(
 			ErrorPlainTextFromHTML,

diff --git a/options.go b/options.go
@@ -88,3 +88,15 @@ func (o stripMediaTypeInvalidCharactersOption) apply(p *Parser) {
 func StripMediaTypeInvalidCharacters(stripMediaTypeInvalidCharacters bool) Option {
 	return stripMediaTypeInvalidCharactersOption(stripMediaTypeInvalidCharacters)
 }
+
+type skipHTML2TextDownConversionOption bool
+
+func (o skipHTML2TextDownConversionOption) apply(p *Parser) {
+	p.skipHTML2TextDownConversion = bool(o)
+}
+
+// SkipHTML2TextDownConversion sets skipHTML2TextDownConversion option. If true, there will be no automatic down conversion
+// of HTML 2 Text.
+func SkipHTML2TextDownConversion(skipHTML2TextDownConversion bool) Option {
+	return skipHTML2TextDownConversionOption(skipHTML2TextDownConversion)
+}
diff --git a/parser.go b/parser.go
@@ -26,6 +26,7 @@ type Parser struct {
 	rawContent                      bool
 	customParseMediaType            CustomParseMediaType
 	stripMediaTypeInvalidCharacters bool
+	skipHTML2TextDownConversion     bool
 }
 
 // defaultParser is a Parser with default configuration.