private SpannableStringBuilder doAutoLinks(
SpannableStringBuilder ssb, ArrayList<MarkdownURL> urls) {
// Colorize URLs
AutomatonMatcher am = autoLinkUrlAutomaton.newMatcher(ssb);
while (am.find()) {
ForegroundColorSpan fcs = new ForegroundColorSpan(Constants.MARKDOWN_LINK_COLOR);
ssb.setSpan(fcs, am.start(), am.end(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
urls.add(new MarkdownURL(am.start(), am.group(), null));
}
// Don't autolink emails for now. Neither does reddit.com
// m = autoLinkEmail.matcher(ssb);
// int start = 0;
// while (m.find(start)) {
// String address = m.group(1);
// TextEditor ed = new TextEditor(address);
// unEscapeSpecialChars(ed);
// String addr = encodeEmail(ed.toString());
// String url = encodeEmail("mailto:" + ed.toString());
//
// urls.add(url);
// ssb.replace(m.start(), m.end(), addr);
// ForegroundColorSpan fcs = new ForegroundColorSpan(Constants.MARKDOWN_LINK_COLOR);
// ssb.setSpan(fcs, m.start(), m.end(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
// // Skip what we just replaced
// m = autoLinkEmail.matcher(ssb);
// start = m.start() + addr.length();
// }
return ssb;
}
/** Adapted from MarkdownJ. Convert links, return URL */
private SpannableStringBuilder doAnchors(
SpannableStringBuilder ssb, ArrayList<MarkdownURL> urls) {
// Inline-style links: [link text](url "optional title")
AutomatonMatcher am = inlineLinkAutomaton.newMatcher(ssb);
// The offset into the entire original string
int start = 0;
while (am.find()) {
// The offsets from start (offset into orig. string = start + anchorStart)
int anchorStart = am.start();
int anchorEnd = am.end();
Matcher m = inlineLink.matcher(am.group());
if (!m.find()) continue;
String linkText = m.group(2);
String url = m.group(3);
String title = m.group(6);
int linkTextLength = linkText.length();
if (Constants.LOGGING)
Log.d(
TAG, "pos=" + am.start() + " linkText=" + linkText + " url=" + url + " title=" + title);
// protect emphasis (* and _) within urls
// url = url.replaceAll("\\*", CHAR_PROTECTOR.encode("*"));
// url = url.replaceAll("_", CHAR_PROTECTOR.encode("_"));
urls.add(new MarkdownURL(start + anchorStart, url, linkText));
// StringBuffer result = new StringBuffer();
// TODO: Show title (if any) alongside url in popup menu
// if (title != null) {
// // protect emphasis (* and _) within urls
// title = title.replaceAll("\\*", CHAR_PROTECTOR.encode("*"));
// title = title.replaceAll("_", CHAR_PROTECTOR.encode("_"));
// title.replaceAll("\"", """);
// result.append(" title=\"");
// result.append(title);
// result.append("\"");
// }
// Replace whole anchor thing with just linkText, colored different color
SpannableString ss = new SpannableString(linkText);
ForegroundColorSpan fcs = new ForegroundColorSpan(Constants.MARKDOWN_LINK_COLOR);
ss.setSpan(fcs, 0, linkTextLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
ssb = ssb.replace(start + anchorStart, start + anchorEnd, ss);
// Skip past what we just replaced
am = inlineLinkAutomaton.newMatcher(ssb, start + anchorStart + linkTextLength, ssb.length());
start += anchorStart + linkTextLength;
}
return ssb;
}
/**
* @param txt input text
* @param urls Out URLs from anchors
* @return updated text with anchors replaced
*/
private String doAnchorURLs(
String txt, ArrayList<MarkdownURL> urls, TreeMap<Integer, Integer> startToEndOffsetMap) {
// Inline-style links: [link text](url "optional title")
AutomatonMatcher am = inlineLinkAutomaton.newMatcher(txt);
// The offset into the entire original string
int start = 0;
while (am.find()) {
// The offsets from start (offset into orig. string = start + anchorStart)
int anchorStart = am.start();
int anchorEnd = am.end();
Matcher m = inlineLink.matcher(am.group());
if (!m.find()) continue;
String linkText = m.group(2);
String url = m.group(3);
String title = m.group(6);
int linkTextLength = linkText.length();
if (Constants.LOGGING)
Log.d(
TAG,
"pos="
+ (start + anchorStart)
+ " linkText="
+ linkText
+ " url="
+ url
+ " title="
+ title);
// protect emphasis (* and _) within urls
// url = url.replaceAll("\\*", CHAR_PROTECTOR.encode("*"));
// url = url.replaceAll("_", CHAR_PROTECTOR.encode("_"));
if (!isOverlapping(
start + anchorStart, start + anchorStart + linkTextLength, startToEndOffsetMap)) {
saveStartAndEnd(
start + anchorStart, start + anchorStart + linkTextLength, startToEndOffsetMap);
urls.add(new MarkdownURL(start + anchorStart, Util.absolutePathToURL(url), linkText));
}
// StringBuffer result = new StringBuffer();
// TODO: Show title (if any) alongside url in popup menu
// if (title != null) {
// // protect emphasis (* and _) within urls
// title = title.replaceAll("\\*", CHAR_PROTECTOR.encode("*"));
// title = title.replaceAll("_", CHAR_PROTECTOR.encode("_"));
// title.replaceAll("\"", """);
// result.append(" title=\"");
// result.append(title);
// result.append("\"");
// }
txt =
new StringBuilder(txt.substring(0, start + anchorStart))
.append(linkText)
.append(txt.substring(start + anchorEnd, txt.length()))
.toString();
// Skip past what we just replaced
am = inlineLinkAutomaton.newMatcher(txt, start + anchorStart + linkTextLength, txt.length());
start += anchorStart + linkTextLength;
}
return txt;
}