Merge pull request #244 from xiu/fix/214

fix: Title not being extracted when not on the first line

README.md

@@ -120,6 +120,9 @@ be replaced with specified template:
      <yaml-data> -->
 ```
 
+**NOTE**: Make sure to define your macros after your metadata (Title/Space), 
+mark will stop processing metadata if it hits a Macro.
+
 Capture groups can be defined in the macro's <regexp> which can be later
 referenced in the `<yaml-data>` using `${<number>}` syntax, where `<number>` is
 number of a capture group in regexp (`${0}` is used for entire regexp match),

pkg/mark/markdown.go

@@ -345,7 +345,7 @@ func DropDocumentLeadingH1(
 
 // ExtractDocumentLeadingH1 will extract leading H1 heading
 func ExtractDocumentLeadingH1(markdown []byte) string {
-	h1 := regexp.MustCompile(`^#[^#]\s*(.*)\s*\n`)
+	h1 := regexp.MustCompile(`#[^#]\s*(.*)\s*\n`)
 	groups := h1.FindSubmatch(markdown)
 	if groups == nil {
 		return ""

pkg/mark/meta.go

@@ -36,6 +36,7 @@ type Meta struct {
 var (
 	reHeaderPatternV1    = regexp.MustCompile(`\[\]:\s*#\s*\(([^:]+):\s*(.*)\)`)
 	reHeaderPatternV2    = regexp.MustCompile(`<!--\s*([^:]+):\s*(.*)\s*-->`)
+	reHeaderPatternMacro = regexp.MustCompile(`<!-- Macro: .*`)
 )
 
 func ExtractMeta(data []byte) (*Meta, []byte, error) {
@@ -58,6 +59,12 @@ func ExtractMeta(data []byte) (*Meta, []byte, error) {
 		if matches == nil {
 			matches = reHeaderPatternV1.FindStringSubmatch(line)
 			if matches == nil {
+				matches = reHeaderPatternMacro.FindStringSubmatch(line)
+				// If we have a match, then we started reading a macro.
+				// We want to keep it in the document for it to be read by ExtractMacros
+				if matches != nil {
+					offset -= len(line) + 1
+				}
 				break
 			}
 

pkg/mark/testdata/header.md

@@ -1,3 +1,4 @@
+
 # a
 ## b
 ### c