Add new flag -mfont

hattya · hattya · commit 95313ade6aae · 2025-08-05T22:01:36.000+09:00
diff --git a/md2html.go b/md2html.go
@@ -41,6 +41,7 @@ var (
 	hlstyle = flag.String("hlstyle", "github", "highlight.js style")
 	lang    = flag.String("lang", "en", "HTML lang attribute")
 	m       = flag.Bool("m", false, "use MathJax")
+	mfont   = flag.String("mfont", "", "MathJax font")
 	style   = flag.String("style", "", "style sheet")
 	title   = flag.String("title", "", "document title")
 )
@@ -158,6 +159,15 @@ func convert(r io.Reader, w io.Writer) (err error) {
 	}
 	// MathJax
 	if *m {
+		if *mfont != "" {
+			fmt.Fprintln(w, `<script>`)
+			fmt.Fprintln(w, `MathJax = {`)
+			fmt.Fprintln(w, `  output: {`)
+			fmt.Fprintf(w, "    font: \"%s\"\n", *mfont)
+			fmt.Fprintln(w, `  }`)
+			fmt.Fprintln(w, `};`)
+			fmt.Fprintln(w, `</script>`)
+		}
 		fmt.Fprintf(w, "<script defer src=\"%s\"></script>\n", mathJax)
 	}
 	// Mermaid
diff --git a/md2html_test.go b/md2html_test.go
@@ -29,6 +29,7 @@ var (
 	saveHLStyle string
 	saveLang    string
 	saveM       bool
+	saveMFont   string
 	saveStyle   string
 	saveTitle   string
 )
@@ -42,6 +43,7 @@ func init() {
 	saveHLStyle = *hlstyle
 	saveLang = *lang
 	saveM = *m
+	saveMFont = *mfont
 	saveStyle = *style
 	saveTitle = *title
 }
@@ -236,6 +238,12 @@ func TestConvert(t *testing.T) {
 		if err := try(src, "m.html"); err != nil {
 			t.Error(err)
 		}
+
+		*m = true
+		*mfont = "mathjax-stix2"
+		if err := try(src, "mfont-stix2.html"); err != nil {
+			t.Error(err)
+		}
 	})
 }
 
@@ -249,6 +257,7 @@ func try(src []byte, name string) error {
 		*hlstyle = saveHLStyle
 		*lang = saveLang
 		*m = saveM
+		*mfont = saveMFont
 		*style = saveStyle
 		*title = saveTitle
 	}()
diff --git a/testdata/mfont-stix2.html b/testdata/mfont-stix2.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="UTF-8">
+<title>md2html</title>
+<link rel="stylesheet" href="${highlight.js}/styles/github.min.css">
+<script src="${highlight.js}/highlight.min.js"></script>
+<script>hljs.highlightAll();</script>
+<script>
+MathJax = {
+  output: {
+    font: "mathjax-stix2"
+  }
+};
+</script>
+<script defer src="${MathJax}"></script>
+</head>
+<body>
+<article class="markdown">
+<h1 id="md2html">md2html</h1>
+<p>...</p>
+</article>
+</body>
+</html>
