Merge pull request #118 from rtfb/test-relative-links

Make sure relative URLs are preserved

inline_test.go

@@ -42,6 +42,7 @@ func doLinkTestsInline(t *testing.T, tests []string) {
 	params := HtmlRendererParameters{AbsolutePrefix: prefix}
 	transformTests := transformLinks(tests, prefix)
 	doTestsInlineParam(t, transformTests, 0, 0, params)
+	doTestsInlineParam(t, transformTests, 0, commonHtmlFlags, params)
 }
 
 func doSafeTestsInline(t *testing.T, tests []string) {
@@ -354,6 +355,12 @@ func TestInlineLink(t *testing.T) {
 		"![foo with a title](/bar/ title with no quotes)\n",
 		"<p><img src=\"/bar/ title with no quotes\" alt=\"foo with a title\" />\n</p>\n",
 
+		"![](img.jpg)\n",
+		"<p><img src=\"img.jpg\" alt=\"\" />\n</p>\n",
+
+		"[link](url)\n",
+		"<p><a href=\"url\">link</a></p>\n",
+
 		"![foo]()\n",
 		"<p>![foo]()</p>\n",
 

markdown.go

@@ -41,6 +41,21 @@ const (
 	EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK             // No need to insert an empty line to start a (code, quote, order list, unorder list)block
 	EXTENSION_HEADER_IDS                             // specify header IDs  with {#id}
 	EXTENSION_TITLEBLOCK                             // Titleblock ala pandoc
+
+	commonHtmlFlags = 0 |
+		HTML_USE_XHTML |
+		HTML_USE_SMARTYPANTS |
+		HTML_SMARTYPANTS_FRACTIONS |
+		HTML_SMARTYPANTS_LATEX_DASHES
+
+	commonExtensions = 0 |
+		EXTENSION_NO_INTRA_EMPHASIS |
+		EXTENSION_TABLES |
+		EXTENSION_FENCED_CODE |
+		EXTENSION_AUTOLINK |
+		EXTENSION_STRIKETHROUGH |
+		EXTENSION_SPACE_HEADERS |
+		EXTENSION_HEADER_IDS
 )
 
 // These are the possible flag values for the link renderer.
@@ -233,24 +248,8 @@ func MarkdownBasic(input []byte) []byte {
 // * Custom Header IDs
 func MarkdownCommon(input []byte) []byte {
 	// set up the HTML renderer
-	htmlFlags := 0
-	htmlFlags |= HTML_USE_XHTML
-	htmlFlags |= HTML_USE_SMARTYPANTS
-	htmlFlags |= HTML_SMARTYPANTS_FRACTIONS
-	htmlFlags |= HTML_SMARTYPANTS_LATEX_DASHES
-	renderer := HtmlRenderer(htmlFlags, "", "")
-
-	// set up the parser
-	extensions := 0
-	extensions |= EXTENSION_NO_INTRA_EMPHASIS
-	extensions |= EXTENSION_TABLES
-	extensions |= EXTENSION_FENCED_CODE
-	extensions |= EXTENSION_AUTOLINK
-	extensions |= EXTENSION_STRIKETHROUGH
-	extensions |= EXTENSION_SPACE_HEADERS
-	extensions |= EXTENSION_HEADER_IDS
-
-	return Markdown(input, renderer, extensions)
+	renderer := HtmlRenderer(commonHtmlFlags, "", "")
+	return Markdown(input, renderer, commonExtensions)
 }
 
 // Markdown is the main rendering function.