when file name does not Get/Match lexer, Analyse content again

freeze_test.go

@@ -256,6 +256,11 @@ func TestFreezeConfigurations(t *testing.T) {
 			flags:  []string{"--wrap", "80", "--width", "600"},
 			output: "wrap",
 		},
+		{
+			input:  "test/input/zprofile",
+			flags:  []string{"--wrap", "80", "--width", "600"},
+			output: "wrap",
+		},
 	}
 
 	err := os.RemoveAll("test/output/svg")

main.go

@@ -157,6 +157,11 @@ func main() {
 			printErrorFatal("File not found", err)
 		}
 		lexer = lexers.Get(config.Input)
+		if lexer == nil {
+			// cannot get/match from filename alone
+			// pass the content for one more attempt to identify
+			lexer = lexers.Analyse(input)
+		}
 	}
 
 	if config.Language != "" {

test/input/zprofile

@@ -0,0 +1,6 @@
+export WHERE=a_zsh_script_without_suffix
+
+foobar() {
+  echo "Hello, because unfortunately zprofile filename does not Get/Match a lexer
+  so we're using Lexer.Analyse to read this content to guess language is Shell"
+}