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-rw-r--r--gnu/services/mail.scm30
1 files changed, 30 insertions, 0 deletions
diff --git a/gnu/services/mail.scm b/gnu/services/mail.scm
index dbc5de9e62..05978e0068 100644
--- a/gnu/services/mail.scm
+++ b/gnu/services/mail.scm
@@ -69,6 +69,27 @@
;;;
;;; Code:
+(define (uglify-field-name field-name)
+ (let ((str (symbol->string field-name)))
+ (string-join (string-split (if (string-suffix? "?" str)
+ (substring str 0 (1- (string-length str)))
+ str)
+ #\-)
+ "_")))
+
+(define (serialize-field field-name val)
+ (format #t "~a=~a\n" (uglify-field-name field-name) val))
+
+(define (serialize-string field-name val)
+ (serialize-field field-name val))
+
+(define (space-separated-string-list? val)
+ (and (list? val)
+ (and-map (lambda (x)
+ (and (string? x) (not (string-index x #\space))))
+ val)))
+(define (serialize-space-separated-string-list field-name val)
+ (serialize-field field-name (string-join val " ")))
(define (comma-separated-string-list? val)
(and (list? val)
@@ -78,6 +99,12 @@
(define (serialize-comma-separated-string-list field-name val)
(serialize-field field-name (string-join val ",")))
+(define (file-name? val)
+ (and (string? val)
+ (string-prefix? "/" val)))
+(define (serialize-file-name field-name val)
+ (serialize-string field-name val))
+
(define (colon-separated-file-name-list? val)
(and (list? val)
;; Trailing slashes not needed and not
@@ -85,6 +112,9 @@
(define (serialize-colon-separated-file-name-list field-name val)
(serialize-field field-name (string-join val ":")))
+(define (serialize-boolean field-name val)
+ (serialize-string field-name (if val "yes" "no")))
+
(define (non-negative-integer? val)
(and (exact-integer? val) (not (negative? val))))
(define (serialize-non-negative-integer field-name val)