diff options
Diffstat (limited to 'src/guile/skribilo/ast.scm')
| -rw-r--r-- | src/guile/skribilo/ast.scm | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/guile/skribilo/ast.scm b/src/guile/skribilo/ast.scm index 542f629..55f37bf 100644 --- a/src/guile/skribilo/ast.scm +++ b/src/guile/skribilo/ast.scm @@ -30,6 +30,9 @@ :autoload (skribilo location) (location?) :autoload (srfi srfi-1) (fold) + + :use-module (ice-9 optargs) + :export (<ast> ast? ast-loc ast-loc-set! ast-parent ast->string ast->file-location ast-resolved? @@ -62,6 +65,9 @@ find-up find1-up ast-document ast-chapter ast-section + ;; numbering + markup-number-string + ;; error conditions &ast-error &ast-orphan-error &ast-cycle-error &markup-unknown-option-error &markup-already-bound-error @@ -596,6 +602,22 @@ (define (ast-section m) (find1-up (lambda (n) (is-markup? n 'section)) m)) + +;;; +;;; Section numbering. +;;; + +(define* (markup-number-string markup :optional (sep ".")) + ;; Return a structure number string such as "1.2". + (let loop ((markup markup)) + (if (document? markup) + "" + (let ((parent-num (loop (ast-parent markup))) + (num (markup-option markup :number))) + (string-append parent-num + (if (string=? "" parent-num) "" sep) + (if (number? num) (number->string num) "")))))) + ;;; arch-tag: e2489bd6-1b6d-4b03-bdfb-83cffd2f7ce7 |