--- /dev/null
+package jalview.util;
+
+import java.util.ArrayList;
+import java.util.StringTokenizer;
+import java.util.regex.Pattern;
+
+
+/**
+ * utility class for dealing with HTML link extraction
+ * @author jprocter
+ *
+ */
+public class ParseHtmlBodyAndLinks
+ {
+ String orig=null;
+ public String getOrig()
+ {
+ return orig;
+ }
+ boolean htmlContent=true;
+ /**
+ * @return true if the content looked like HTML
+
+ */
+ public boolean isHtmlContent()
+ {
+ return htmlContent;
+ }
+
+ ArrayList<String> links=new ArrayList<String>();
+ StringBuffer sb = new StringBuffer();
+ /**
+ * result of parsing description - with or without HTML tags
+ * @return
+ */
+ public String getContent()
+ {
+
+ return sb.toString();
+ }
+ /**
+ * list of Label|Link encoded URL links extracted from HTML
+ * @return
+ */
+ public ArrayList<String> getLinks() {
+ return links;
+ }
+
+ /**
+ *
+ * @param description - html or text content to be parsed
+ * @param removeHTML flag to indicate if HTML tags should be removed if they are present.
+ * @param newline
+ */
+ public ParseHtmlBodyAndLinks(String description,
+ boolean removeHTML, String newline)
+ {
+ if (description==null || description.length()==0)
+ {
+ htmlContent=false;
+ return;
+ }
+ if (description.toUpperCase().indexOf("<HTML>") == -1)
+ {
+ htmlContent = false;
+ }
+ orig = description;
+ StringTokenizer st = new StringTokenizer(description, "<");
+ String token, link;
+ int startTag;
+ String tag = null;
+ while (st.hasMoreElements())
+ {
+ token = st.nextToken("&>");
+ if (token.equalsIgnoreCase("html") || token.startsWith("/"))
+ {
+ continue;
+ }
+
+ tag = null;
+ startTag = token.indexOf("<");
+
+ if (startTag > -1)
+ {
+ tag = token.substring(startTag + 1);
+ token = token.substring(0, startTag);
+ }
+
+ if (tag != null && tag.toUpperCase().startsWith("A HREF="))
+ {
+ if (token.length() > 0)
+ {
+ sb.append(token);
+ }
+ link = tag.substring(tag.indexOf("\"") + 1, tag.length() - 1);
+ String label = st.nextToken("<>");
+ links.add(label + "|" + link);
+ sb.append(label + "%LINK%");
+ }
+ else if (tag != null && tag.equalsIgnoreCase("br"))
+ {
+ sb.append(newline);
+ }
+ else if (token.startsWith("lt;"))
+ {
+ sb.append("<" + token.substring(3));
+ }
+ else if (token.startsWith("gt;"))
+ {
+ sb.append(">" + token.substring(3));
+ }
+ else if (token.startsWith("amp;"))
+ {
+ sb.append("&" + token.substring(4));
+ }
+ else
+ {
+ sb.append(token);
+ }
+ }
+ if (removeHTML && !htmlContent)
+ {
+ // instead of parsing the html into plaintext
+ // clean the description ready for embedding in html
+ sb = new StringBuffer(Pattern.compile("<").matcher(description).replaceAll("<"));
+
+ }
+
+ }
+ /**
+ * get either the parsed content or the original, depending on whether the original looked like html content or not.
+ * @return
+ */
+ public String getNonHtmlContent()
+ {
+ return isHtmlContent() ? sb.toString() : orig;
+ }
+
+}
git://source.jalview.org / jalview.git / blobdiff