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Updated preprocessing for regular markdown links.

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This commit is contained in:
David Russell 2017-05-19 17:42:34 +07:00
parent e448738d1e
commit 580b972d6d
1 changed files with 57 additions and 0 deletions
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57
app/com/gitpitch/models/MarkdownModel.java
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@ -101,6 +101,8 @@ public class MarkdownModel implements Markdown {
consumed = stream.map(md -> {
return process(md, pp, yOpts, gitRawBase);
}).map(md -> {
return processAnchors(md);
}).collect(Collectors.joining("\n"));
consumed = postProcess(consumed, pp, yOpts, gitRawBase);
@ -460,6 +462,56 @@ public class MarkdownModel implements Markdown {
return null;
}
/*
* Ensure all regular Markdown links are upgraded to
* HTML anchors with target=_blank in order to
* open from within embedded GitPitch iFrame.
*/
private String processAnchors(String md) {
try {
boolean moreAnchors = md.contains(MD_ANCHOR_OPEN);
while(moreAnchors) {
if(md.contains(MD_ANCHOR_OPEN)) {
int anchorStart = md.indexOf(MD_ANCHOR_OPEN);
int anchorDelim = md.indexOf(MD_LINK_DELIM, anchorStart);
// Regular Markdown Link not Markdown Image Link.
if(anchorDelim != -1 &&
(anchorStart == 0 || !md.substring(anchorStart-1)
.startsWith(MD_LINK_OPEN))) {
int anchorEnd = md.indexOf(MD_LINK_BRCKT, anchorDelim);
String title = md.substring(anchorStart+1, anchorDelim);
String link = md.substring(anchorDelim+2, anchorEnd);
String anchor =
new StringBuffer(HTML_ANCHOR_OPEN)
.append(link)
.append(HTML_ANCHOR_MID)
.append(title)
.append(HTML_ANCHOR_CLOSE)
.toString();
String mdLeft = md.substring(0, anchorStart);
String mdRight = md.substring(anchorEnd + 1);
md = mdLeft + anchor + mdRight;
} else {
moreAnchors = false;
}
} else {
moreAnchors = false;
}
}
} catch(Exception tex) {
return md;
}
return md;
}
private String postProcess(String md,
PitchParams pp,
YAMLOptions yOpts,
@ -599,6 +651,7 @@ public class MarkdownModel implements Markdown {
public static final String VSLIDE_DELIM_BACK_COMPAT = "#VSLIDE";
public static final String MD_LINK_OPEN = "![";
public static final String MD_ANCHOR_OPEN = "[";
public static final String MD_IMAGE_OPEN =
"<!-- .slide: data-background-image=\"";
public static final String MD_VIDEO_OPEN =
@ -630,6 +683,10 @@ public class MarkdownModel implements Markdown {
private static final String MD_LINK_BRCKT = ")";
private static final String MD_LINK_MP4 = "mp4";
private static final String DATA_GIST_ATTR = "data-gist=";
private static final String HTML_ANCHOR_OPEN =
"<a target=\"_blank\" href=\"";
private static final String HTML_ANCHOR_MID = "\">";
private static final String HTML_ANCHOR_CLOSE = "</a>";
private static final int NOT_FOUND = -1;
/*
* Model prefix identifier for cache key generator.