From 8d67f94d67ff856dc1b4e3dba1440956be7daa97 Mon Sep 17 00:00:00 2001
From: fuleinist <fuleinist@outlook.com>
Date: Thu, 14 May 2026 00:22:31 +0800
Subject: [PATCH] docs(cli): document $$ escape in --help for replace_with

Issue #341: $$ syntax is documented in README but missing from --help output.

The replace_with arg help only mentioned $1, $2 capture groups but didn't
document how to escape a literal $, which is a common need. Added one line
to the doc comment noting that $$ produces a literal $.
---
 sd-cli/src/cli.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sd-cli/src/cli.rs b/sd-cli/src/cli.rs
index 73de8fe..166c5ba 100644
--- a/sd-cli/src/cli.rs
+++ b/sd-cli/src/cli.rs
@@ -68,6 +68,8 @@ w - match full words only
 
     /// What to replace each match with. Unless in string mode, you may
     /// use captured values like $1, $2, etc.
+    ///
+    /// To insert a literal $, use $$.
     pub replace_with: String,
 
     /// The path to file(s). This is optional - sd can also read from STDIN.