/** Scan tag */
public static Hashtable scanTag(Reader in) throws IOException {
Hashtable atts = new Hashtable();
skipSpace(in);
while (c >= 0 && c != '>') {
String att = scanIdentifier(in);
String val = "";
skipSpace(in);
if (c == '=') {
int quote = -1;
c = in.read();
skipSpace(in);
if ((c == '\'') || (c == '\"')) {
quote = c;
c = in.read();
}
StringBuffer buf = new StringBuffer();
while ((c > 0)
&& (((quote < 0)
&& (c != ' ')
&& (c != '\t')
&& (c != '\n')
&& (c != '\r')
&& (c != '>'))
|| ((quote >= 0) && (c != quote)))) {
buf.append((char) c);
c = in.read();
}
if (c == quote) {
c = in.read();
}
skipSpace(in);
val = buf.toString();
}
// statusMsgStream.println("PUT " + att + " = '" + val + "'");
if (!val.equals("")) {
atts.put(att.toLowerCase(j86.java.util.Locale.ENGLISH), val);
}
while (true) {
if ((c == '>')
|| (c < 0)
|| ((c >= 'a') && (c <= 'z'))
|| ((c >= 'A') && (c <= 'Z'))
|| ((c >= '0') && (c <= '9'))
|| (c == '_')) break;
c = in.read();
}
// skipSpace(in);
}
return atts;
}
/** Scan identifier */
public static String scanIdentifier(Reader in) throws IOException {
StringBuffer buf = new StringBuffer();
while (true) {
if (((c >= 'a') && (c <= 'z'))
|| ((c >= 'A') && (c <= 'Z'))
|| ((c >= '0') && (c <= '9'))
|| (c == '_')) {
buf.append((char) c);
c = in.read();
} else {
return buf.toString();
}
}
}
public static void parse(URL url, PrintStream statusMsgStream, AppletViewerFactory factory)
throws IOException {
// <OBJECT> <EMBED> tag flags
boolean isAppletTag = false;
boolean isObjectTag = false;
boolean isEmbedTag = false;
// warning messages
String requiresNameWarning = amh.getMessage("parse.warning.requiresname");
String paramOutsideWarning = amh.getMessage("parse.warning.paramoutside");
String appletRequiresCodeWarning = amh.getMessage("parse.warning.applet.requirescode");
String appletRequiresHeightWarning = amh.getMessage("parse.warning.applet.requiresheight");
String appletRequiresWidthWarning = amh.getMessage("parse.warning.applet.requireswidth");
String objectRequiresCodeWarning = amh.getMessage("parse.warning.object.requirescode");
String objectRequiresHeightWarning = amh.getMessage("parse.warning.object.requiresheight");
String objectRequiresWidthWarning = amh.getMessage("parse.warning.object.requireswidth");
String embedRequiresCodeWarning = amh.getMessage("parse.warning.embed.requirescode");
String embedRequiresHeightWarning = amh.getMessage("parse.warning.embed.requiresheight");
String embedRequiresWidthWarning = amh.getMessage("parse.warning.embed.requireswidth");
String appNotLongerSupportedWarning = amh.getMessage("parse.warning.appnotLongersupported");
j86.java.net.URLConnection conn = url.openConnection();
Reader in = makeReader(conn.getInputStream());
/* The original URL may have been redirected - this
* sets it to whatever URL/codebase we ended up getting
*/
url = conn.getURL();
int ydisp = 1;
Hashtable atts = null;
while (true) {
c = in.read();
if (c == -1) break;
if (c == '<') {
c = in.read();
if (c == '/') {
c = in.read();
String nm = scanIdentifier(in);
if (nm.equalsIgnoreCase("applet")
|| nm.equalsIgnoreCase("object")
|| nm.equalsIgnoreCase("embed")) {
// We can't test for a code tag until </OBJECT>
// because it is a parameter, not an attribute.
if (isObjectTag) {
if (atts.get("code") == null && atts.get("object") == null) {
statusMsgStream.println(objectRequiresCodeWarning);
atts = null;
}
}
if (atts != null) {
// XXX 5/18 In general this code just simply
// shouldn't be part of parsing. It's presence
// causes things to be a little too much of a
// hack.
factory.createAppletViewer(x, y, url, atts);
x += XDELTA;
y += YDELTA;
// make sure we don't go too far!
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
if ((x > d.width - 300) || (y > d.height - 300)) {
x = 0;
y = 2 * ydisp * YDELTA;
ydisp++;
}
}
atts = null;
isAppletTag = false;
isObjectTag = false;
isEmbedTag = false;
}
} else {
String nm = scanIdentifier(in);
if (nm.equalsIgnoreCase("param")) {
Hashtable t = scanTag(in);
String att = (String) t.get("name");
if (att == null) {
statusMsgStream.println(requiresNameWarning);
} else {
String val = (String) t.get("value");
if (val == null) {
statusMsgStream.println(requiresNameWarning);
} else if (atts != null) {
atts.put(att.toLowerCase(), val);
} else {
statusMsgStream.println(paramOutsideWarning);
}
}
} else if (nm.equalsIgnoreCase("applet")) {
isAppletTag = true;
atts = scanTag(in);
if (atts.get("code") == null && atts.get("object") == null) {
statusMsgStream.println(appletRequiresCodeWarning);
atts = null;
} else if (atts.get("width") == null) {
statusMsgStream.println(appletRequiresWidthWarning);
atts = null;
} else if (atts.get("height") == null) {
statusMsgStream.println(appletRequiresHeightWarning);
atts = null;
}
} else if (nm.equalsIgnoreCase("object")) {
isObjectTag = true;
atts = scanTag(in);
// The <OBJECT> attribute codebase isn't what
// we want. If its defined, remove it.
if (atts.get("codebase") != null) {
atts.remove("codebase");
}
if (atts.get("width") == null) {
statusMsgStream.println(objectRequiresWidthWarning);
atts = null;
} else if (atts.get("height") == null) {
statusMsgStream.println(objectRequiresHeightWarning);
atts = null;
}
} else if (nm.equalsIgnoreCase("embed")) {
isEmbedTag = true;
atts = scanTag(in);
if (atts.get("code") == null && atts.get("object") == null) {
statusMsgStream.println(embedRequiresCodeWarning);
atts = null;
} else if (atts.get("width") == null) {
statusMsgStream.println(embedRequiresWidthWarning);
atts = null;
} else if (atts.get("height") == null) {
statusMsgStream.println(embedRequiresHeightWarning);
atts = null;
}
} else if (nm.equalsIgnoreCase("app")) {
statusMsgStream.println(appNotLongerSupportedWarning);
Hashtable atts2 = scanTag(in);
nm = (String) atts2.get("class");
if (nm != null) {
atts2.remove("class");
atts2.put("code", nm + ".class");
}
nm = (String) atts2.get("src");
if (nm != null) {
atts2.remove("src");
atts2.put("codebase", nm);
}
if (atts2.get("width") == null) {
atts2.put("width", "100");
}
if (atts2.get("height") == null) {
atts2.put("height", "100");
}
printTag(statusMsgStream, atts2);
statusMsgStream.println();
}
}
}
}
in.close();
}
/** Scan spaces. */
public static void skipSpace(Reader in) throws IOException {
while ((c >= 0) && ((c == ' ') || (c == '\t') || (c == '\n') || (c == '\r'))) {
c = in.read();
}
}