Bug #22201: ruby.exe reads `"AA\ " BB` as a single argument

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 3.3: UNKNOWN, 3.4: UNKNOWN, 4.0: UNKNOWN

[mame (Yusuke Endoh)]

A backslash escapes a double quote that sits beyond a whitespace character.

C:\> ruby -e "p ARGV" "AA\ " BB
["AA\\  BB"]     # <- actual
["AA\\ ", "BB"]  # <- expected

This is not intentional, right? The escape is cancelled when almost any other character appears, but I think whitespace seems to have been simply forgotten.

The fix is so simple:

--- a/win32/win32.c
+++ b/win32/win32.c
@@ -1739,6 +1739,15 @@ w32_cmdvector(const WCHAR *cmd, char ***vec, UINT cp, rb_encoding *enc)
                     *ptr = 0;
                     done = 1;
                 }
+                slashes = 0;
                 break;

               case L'*':

https://github.com/ruby/ruby/pull/17943

[mame (Yusuke Endoh)]

• Status changed from Open to Closed

Applied in changeset git|ecc6edae550059c6414af728f0ada809d7547b97.

---

win32: a backslash before whitespace escaped the closing quote

Inside double quotes, the escape was cancelled by almost any character
but not by whitespace, so "AA\ " BB came out as a single argument.

[Bug #22201]