From 90eb31250eca94e9df7865312cf407c34bdf7b43 Mon Sep 17 00:00:00 2001
From: sett <raik.rohde@gmail.com>
Date: Tue, 11 Apr 2023 16:26:20 +0200
Subject: [PATCH] fix: handle empty image title in pdf conversions

---
 globals/version.go        |  2 +-
 pdf/conversions/image.go  |  4 ----
 pdf/conversions/string.go | 21 +++++++++++++++++++--
 3 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/globals/version.go b/globals/version.go
index 1309827..257e2d1 100644
--- a/globals/version.go
+++ b/globals/version.go
@@ -1,3 +1,3 @@
 package globals
 
-const Version = "2.7.3"
+const Version = "2.7.4"
diff --git a/pdf/conversions/image.go b/pdf/conversions/image.go
index 7924454..3f9ec1d 100644
--- a/pdf/conversions/image.go
+++ b/pdf/conversions/image.go
@@ -55,10 +55,6 @@ func Image(image *ast.Image, node ast.Node) (retO *spec.XObject, retA *spec.Adda
 	titlePara := String(string(image.Title))
 	titleSegs := (*titlePara).(*elements.Paragraph).Segments
 	para.Add(titleSegs...)
-	//para.Add(&spec.Segment{
-	//	Content: string(image.Title),
-	//	Font:    spec.SerifRegular,
-	//})
 	var a spec.Addable = &para
 	retP = &a
 	return
diff --git a/pdf/conversions/string.go b/pdf/conversions/string.go
index b415d99..abfd532 100644
--- a/pdf/conversions/string.go
+++ b/pdf/conversions/string.go
@@ -4,6 +4,7 @@ import (
 	"github.com/sett17/mdpaper/v2/globals"
 	goldmark_cite "github.com/sett17/mdpaper/v2/goldmark-cite"
 	goldmark_figref "github.com/sett17/mdpaper/v2/goldmark-figref"
+	"github.com/sett17/mdpaper/v2/pdf/elements"
 	"github.com/sett17/mdpaper/v2/pdf/spec"
 	"github.com/yuin/goldmark"
 	"github.com/yuin/goldmark/ast"
@@ -11,7 +12,7 @@ import (
 	"strings"
 )
 
-func String(s string) *spec.Addable {
+func String(s string) (ret *spec.Addable) {
 	p := goldmark.New(
 		goldmark.WithExtensions(
 			&goldmark_cite.CitationExtension{},
@@ -23,7 +24,23 @@ func String(s string) *spec.Addable {
 	prevFile := globals.File
 	globals.File = buf
 	parsed := p.Parse(text.NewReader(buf))
-	ret := Paragraph(parsed.FirstChild().(*ast.Paragraph), false)
+	if para, ok := parsed.FirstChild().(*ast.Paragraph); ok {
+		ret = Paragraph(para, false)
+	} else {
+		para := elements.Paragraph{
+			Text: spec.Text{
+				FontSize:   globals.Cfg.Text.FontSize,
+				LineHeight: globals.Cfg.Text.LineHeight,
+			},
+		}
+		emptySeg := spec.Segment{
+			Content: "",
+			Font:    spec.SerifRegular,
+		}
+		para.Add(&emptySeg)
+		var a spec.Addable = &para
+		ret = &a
+	}
 	globals.File = prevFile
 
 	return ret