diff-hunk-header-re-unified

diff-hunk-header-re-unified is a variable defined in `diff-mode.el'.
Its value is

"^@@ -\\([0-9]+\\)\\(?:,\\([0-9]+\\)\\)? \\+\\([0-9]+\\)\\(?:,\\([0-9]+\\)\\)? @@"

• This variable may be risky if used as a file-local variable.

Documentation:
Not documented as a variable.