Remove ANSI SGR sequences from Gemini docs

1 files changed, 5 insertions, 0 deletions

diff --git a/gopherproxy/gopherproxy.go b/gopherproxy/gopherproxy.go
index 4a7d972..453ee9c 100644
--- a/gopherproxy/gopherproxy.go
+++ b/gopherproxy/gopherproxy.go
@@ -29,6 +29,10 @@ import (
         "github.com/temoto/robotstxt"
 )
 
+var (
+        TermEscapeSGRPattern = regexp.MustCompile("\\[\\d+(;\\d+)*m")
+)
+
 const (
         ITEM_TYPE_GEMINI_LINE = ""
         ITEM_TYPE_GEMINI_LINK = " =>"
@@ -177,6 +181,7 @@ func parseGeminiDocument(body *bytes.Buffer, uri string, hostport string) (items
 
         for scanner.Scan() {
                 line := strings.Trim(scanner.Text(), "\r\n")
+                line = TermEscapeSGRPattern.ReplaceAllString(line, "")
 
                 item := Item{
                         Type: ITEM_TYPE_GEMINI_LINE,