page rewrite

crates/lib/toolbox/src/mime.rs

@@ -251,6 +251,23 @@ impl From<&MimeType> for String {
 // MARK: fromstr
 //
 
+impl MimeType {
+	/// Parse a mimetype from a string that may contain
+	/// whitespace or ";" parameters.
+	///
+	/// Parameters are discarded, write your own parser if you need them.
+	pub fn from_header(s: &str) -> Result<Self, <Self as FromStr>::Err> {
+		let s = s.trim();
+		let semi = s.find(';').unwrap_or(s.len());
+		let space = s.find(' ').unwrap_or(s.len());
+		let limit = semi.min(space);
+		let s = &s[0..limit];
+		let s = s.trim();
+
+		return Self::from_str(s);
+	}
+}
+
 impl FromStr for MimeType {
 	type Err = std::convert::Infallible;
 
@@ -687,4 +704,108 @@ impl MimeType {
 			Self::Xul => Some("xul"),
 		}
 	}
+
+	//
+	// MARK: is_text
+	//
+
+	/// Returns true if this MIME type is always plain text.
+	pub fn is_text(&self) -> bool {
+		match self {
+			// Text types
+			Self::Text => true,
+			Self::Css => true,
+			Self::Csv => true,
+			Self::Html => true,
+			Self::Javascript => true,
+			Self::Json => true,
+			Self::JsonLd => true,
+			Self::Xml => true,
+			Self::Svg => true,
+			Self::Ics => true,
+			Self::Xhtml => true,
+
+			// Script types
+			Self::Csh => true,
+			Self::Php => true,
+			Self::Sh => true,
+
+			// All other types are not plain text
+			Self::Other(_) => false,
+			Self::Blob => false,
+
+			// Audio
+			Self::Aac => false,
+			Self::Flac => false,
+			Self::Midi => false,
+			Self::Mp3 => false,
+			Self::Oga => false,
+			Self::Opus => false,
+			Self::Wav => false,
+			Self::Weba => false,
+
+			// Video
+			Self::Avi => false,
+			Self::Mp4 => false,
+			Self::Mpeg => false,
+			Self::Ogv => false,
+			Self::Ts => false,
+			Self::WebmVideo => false,
+			Self::ThreeGp => false,
+			Self::ThreeG2 => false,
+
+			// Images
+			Self::Apng => false,
+			Self::Avif => false,
+			Self::Bmp => false,
+			Self::Gif => false,
+			Self::Ico => false,
+			Self::Jpg => false,
+			Self::Png => false,
+			Self::Qoi => false,
+			Self::Tiff => false,
+			Self::Webp => false,
+
+			// Documents
+			Self::Pdf => false,
+			Self::Rtf => false,
+
+			// Archives
+			Self::Arc => false,
+			Self::Bz => false,
+			Self::Bz2 => false,
+			Self::Gz => false,
+			Self::Jar => false,
+			Self::Ogg => false,
+			Self::Rar => false,
+			Self::SevenZ => false,
+			Self::Tar => false,
+			Self::Zip => false,
+
+			// Fonts
+			Self::Eot => false,
+			Self::Otf => false,
+			Self::Ttf => false,
+			Self::Woff => false,
+			Self::Woff2 => false,
+
+			// Applications
+			Self::Abiword => false,
+			Self::Azw => false,
+			Self::Cda => false,
+			Self::Doc => false,
+			Self::Docx => false,
+			Self::Epub => false,
+			Self::Mpkg => false,
+			Self::Odp => false,
+			Self::Ods => false,
+			Self::Odt => false,
+			Self::Ppt => false,
+			Self::Pptx => false,
+			Self::Vsd => false,
+			Self::Xls => false,
+			Self::Xlsx => false,
+			Self::Xul => false,
+		}
+	}
 }