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-rw-r--r--guix/colors.scm18
1 files changed, 11 insertions, 7 deletions
diff --git a/guix/colors.scm b/guix/colors.scm
index 7949cf5763..b63ac37027 100644
--- a/guix/colors.scm
+++ b/guix/colors.scm
@@ -31,6 +31,8 @@
colorize-string
highlight
+ dim
+
color-rules
color-output?
isatty?*))
@@ -133,14 +135,16 @@ that subsequent output will not have any colors in effect."
(not (getenv "NO_COLOR"))
(isatty?* port)))
-(define %highlight-color (color BOLD))
+(define (coloring-procedure color)
+ "Return a procedure that applies COLOR to the given string."
+ (lambda* (str #:optional (port (current-output-port)))
+ "Return STR with extra ANSI color attributes if PORT supports it."
+ (if (color-output? port)
+ (colorize-string str color)
+ str)))
-(define* (highlight str #:optional (port (current-output-port)))
- "Return STR with extra ANSI color attributes to highlight it if PORT
-supports it."
- (if (color-output? port)
- (colorize-string str %highlight-color)
- str))
+(define highlight (coloring-procedure (color BOLD)))
+(define dim (coloring-procedure (color DARK)))
(define (colorize-matches rules)
"Return a procedure that, when passed a string, returns that string