Fix #184

README.md

@@ -89,7 +89,9 @@ An attached link is [here](<path-to-image>)
 ```
 
 **NOTE**: Be careful with `Attachment`! If your path string is a subset of
-another longer string or referenced in text, you may get undesired behavior.
+another longer string or referenced in text, it will be replaced as well.
+An exception to this is when the path string is wrapped in [], e.g. [Attachment.txt](Attachment.txt)
+only replaces the latter link target, but not the link text.
 
 Mark also supports macro definitions, which are defined as regexps which will
 be replaced with specified template:

pkg/mark/attachment.go

@@ -226,6 +226,20 @@ func CompileAttachmentLinks(markdown []byte, attaches []Attachment) []byte {
 			)
 
 			found = true
+
+			// Recover occurrences of "[replace]" (needle in brackets) to prevent link texts of links to basename-only attachments
+			// like "[Attachment.txt](Attachment.txt)" from getting replaced as well.
+			toBrackets := append(append([]byte("["), to...), "]"...)
+			fromBrackets := append(append([]byte("["), from...), "]"...)
+			if bytes.Contains(markdown, toBrackets) {
+				log.Debugf(nil, "recovering link text: %q -> %q", toBrackets, fromBrackets)
+
+				markdown = bytes.ReplaceAll(
+					markdown,
+					toBrackets,
+					fromBrackets,
+				)
+			}
 		}
 
 		if !found {