Windows path causing regex exception

[vsch]

The Windows path separator is not being escaped, and results in an invalid escape sequence. The below is for the basic auth node module, but this occurs on all .md files regardless of what it is due to the path.

java.util.regex.PatternSyntaxException: Illegal/unsupported escape sequence near index 4
^C:\Users[USERNAME][PATH TO PROJECTS][PROJECT NAME]/(?:\Qnode_modules/basic-auth/LICENSE\E)$
^
at java.util.regex.Pattern.error(Pattern.java:1955)
at java.util.regex.Pattern.escape(Pattern.java:2471)
at java.util.regex.Pattern.atom(Pattern.java:2198)
at java.util.regex.Pattern.sequence(Pattern.java:2130)
at java.util.regex.Pattern.expr(Pattern.java:1996)
at java.util.regex.Pattern.compile(Pattern.java:1696)
at java.util.regex.Pattern.(Pattern.java:1351)
at java.util.regex.Pattern.compile(Pattern.java:1028)
at kotlin.text.Regex.(RegexJVM.kt:98)
at kotlin.text.StringsKt__RegexExtensionsKt.toRegex(RegexExtensions.kt:9)
at kotlin.text.StringsKt.toRegex(Unknown Source)
at com.vladsch.idea.multimarkdown.util.GitHubLinkResolver.getMatchedRefs(GitHubLinkResolver.kt:247)
at com.vladsch.idea.multimarkdown.util.GitHubLinkResolver.resolve(GitHubLinkResolver.kt:157)
at com.vladsch.idea.multimarkdown.editor.MultiMarkdownLinkRenderer.getLinkTarget(MultiMarkdownLinkRenderer.java:78)
at com.vladsch.idea.multimarkdown.editor.MultiMarkdownLinkRenderer.renderLink(MultiMarkdownLinkRenderer.java:102)
at com.vladsch.idea.multimarkdown.editor.MultiMarkdownLinkRenderer.render(MultiMarkdownLinkRenderer.java:128)
at org.pegdown.ToHtmlSerializer.visit(ToHtmlSerializer.java:215)
at org.pegdown.ast.ExpLinkNode.accept(ExpLinkNode.java:35)
at org.pegdown.ToHtmlSerializer.visitChildrenSkipFirst(ToHtmlSerializer.java:606)
at org.pegdown.ToHtmlSerializer.visitChildren(ToHtmlSerializer.java:594)
at org.pegdown.ToHtmlSerializer.visit(ToHtmlSerializer.java:579)
at org.pegdown.ast.SuperNode.accept(SuperNode.java:43)
at org.pegdown.ToHtmlSerializer.visitChildrenSkipFirst(ToHtmlSerializer.java:606)
at org.pegdown.ToHtmlSerializer.visitChildren(ToHtmlSerializer.java:594)
at org.pegdown.ToHtmlSerializer.printTag(ToHtmlSerializer.java:620)
at org.pegdown.ToHtmlSerializer.printBreakBeforeTag(ToHtmlSerializer.java:627)
at org.pegdown.ToHtmlSerializer.visit(ToHtmlSerializer.java:315)
at org.pegdown.ast.ParaNode.accept(ParaNode.java:35)
at org.pegdown.ToHtmlSerializer.visitChildrenSkipFirst(ToHtmlSerializer.java:606)
at org.pegdown.ToHtmlSerializer.visitChildren(ToHtmlSerializer.java:594)
at org.pegdown.ToHtmlSerializer.visit(ToHtmlSerializer.java:120)
at org.pegdown.ast.RootNode.accept(RootNode.java:96)
at org.pegdown.ToHtmlSerializer.toHtml(ToHtmlSerializer.java:90)
at com.vladsch.idea.multimarkdown.editor.resources.JavaFxHtmlGenerator.toHtml(JavaFxHtmlGenerator.kt:54)
at com.vladsch.idea.multimarkdown.editor.MarkdownPreviewFileEditor$HtmlUpdater.run(MarkdownPreviewFileEditor.kt:272)
at com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:238)
at com.intellij.util.Alarm$Request$1.run(Alarm.java:351)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:332)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:749)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:702)
at java.awt.EventQueue$3.run(EventQueue.java:696)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:719)
at com.intellij.ide.IdeEventQueue.e(IdeEventQueue.java:734)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:569)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:382)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

reported originally in nicoulaj/idea-markdown/issues/254

[vsch]

quick fix build 1.4.0.1 available. Fixes exception in regex and also improper URI's were generated for local files due to windows platform idiosyncrasies. Now local images and local only file links resolve in preview.

Download and install plugin from disk: https://github.com/vsch/idea-multimarkdown/raw/master/dist/idea-multimarkdown.1.4.0.1.zip

[vsch]

Latest fixed build 1.4.0.2 available. It includes fix for this issue along with others. https://github.com/vsch/idea-multimarkdown/raw/master/dist/idea-multimarkdown.1.4.0.2.zip

You need to download the plugin zip and use the install plugin from disk button in preferences > plugins.