id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	difficulty
1189	string-substitute \NUM syntax with preceding backslashes	John Foerch		"I'm seeing an odd behavior with string-substitute.  I want to prefix commas in a string with backslashes, but found the following behavior:

{{{
> (use regex)

> (string-substitute #\, ""\\ \\0"" ""a,b"")
""a\\ ,b""

> (string-substitute #\, ""\\\\0"" ""a,b"")
""a\\\\0b""
}}}

The \NUM syntax in the substitution string worked as expected when preceded by a space, but not when preceded by another backslash (which was escaped).

CHICKEN version 4.9.0.1
regex version 1.0

"	defect	closed	major	4.11.0	extensions	4.9.x	invalid