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(define-library (config-generation sway)
(import (scheme base)
(scheme write))
(export ;;sway-config
scm->sway-config)
(cond-expand
(guile (import (ice-9 match))))
(cond-expand
((not chibi)
(import (srfi 13))))
(cond-expand
((not guile) (import (srfi 0))))
(begin
;; (cond-expand
;; (chibi
;; (define (string-join ls . options)
;; (let ((delimiter (if (> (length options) 0) (car options) " "))
;; (grammer (if (> (length options) 1) (cadr options) 'infix)))
;; (if (pair? ls)
;; (string-append
;; (if (equal? grammer 'prefix) delimiter "")
;; (car ls)
;; (if (or (equal? grammer 'suffix)
;; (and (equal? grammer 'infix)
;; (pair? (cdr ls))))
;; delimiter
;; "")
;; (if (pair? (cdr ls))
;; (string-join (cdr ls) delimiter grammer)
;; ""))
;; ""))))
;; (else))
;; (define-syntax make-string-from-ellipsis
;; (syntax-rules ()
;; ((_ text ...)
;; (string-join (map (lambda (x)
;; (cond
;; ((string? x) (string-append "\"" x "\""))
;; ((symbol? x) (symbol->string x))
;; ((number? x) (number->string x))
;; (else x)))
;; '(text ...))))))
;; (define-syntax sway-config
;; (syntax-rules (bindsyms bindsym set for-window)
;; ;; Support binding group extension
;; ((_ (bindsyms (binding ...) ...) lines ...)
;; (string-append
;; (sway-config (bindsym binding ...) ...)
;; (sway-config lines) ...))
;; ;; Support multi-binding extension
;; ((_ (bindsym (shortcut ...) . action) lines ...)
;; (string-append
;; (sway-config (bindsym shortcut . action) ...)
;; (sway-config lines) ...))
;; ((_ (bindsym shortcut (actions ...) ...) lines ...)
;; (string-append
;; "bindsym " (symbol->string 'shortcut) " "
;; (string-join
;; (map
;; (lambda (ls)
;; (string-join
;; (map
;; (lambda (x)
;; (cond
;; ((symbol? x) (symbol->string x))
;; ((number? x) (number->string x))
;; (else x)))
;; ls)))
;; '((actions ...) ...))
;; "; ")
;; "\n"
;; (sway-config lines) ...))
;; ((_ (bindsym shortcut action ...) lines ...)
;; (string-append
;; "bindsym " (make-string-from-ellipsis shortcut action ...) "\n"
;; (sway-config lines) ...))
;; ;; for_window support
;; ((_ (for-window (criteria ...) command ...) lines ...)
;; (letrec-syntax ((criteria->string
;; (syntax-rules ::: ()
;; ((_ attribute value rest :::)
;; (string-append " ["(symbol->string 'attribute) "=" "\"" value "\"] " (criteria->string rest :::)))
;; ((_) ""))))
;; (string-append
;; "for_window" (criteria->string criteria ...) (make-string-from-ellipsis command ...) "\n"
;; (sway-config lines) ...)))
;; ;; Support blocks (such as for mode definitions like resize mode)
;; ((_ (block-start ... (block-body ...)))
;; (string-append
;; (make-string-from-ellipsis block-start ...) " {\n"
;; (sway-config block-body ...)
;; "}\n"))
;; ;; set block
;; ((_ (set variables ...) lines ...)
;; (letrec-syntax ((aux (syntax-rules ()
;; ((_ var val . rest)
;; (string-append
;; "set " (make-string-from-ellipsis var val) "\n"
;; (aux . rest)))
;; ((_) ""))))
;; (string-append (aux variables ...)
;; (sway-config lines ...))))
;; ;; Default parsing
;; ((_ (line ...))
;; (string-append (make-string-from-ellipsis line ...) "\n"))
;; ((_ line lines ...)
;; (string-append
;; (sway-config line)
;; (sway-config lines ...)))))
(define (scm->sway-config scm)
(define (ensure-string s)
(cond
((string? s) (string-append "\"" s "\""))
((symbol? s) (symbol->string s))
((number? s) (number->string s))))
(define (plist->list-of-lists pl)
(if (null? pl)
'()
(cons (list (car pl) (cadr pl))
(plist->list-of-lists (cddr pl)))))
(match scm
;; Base case
(() "")
;; Support binding group extension
((('bindsyms (bindings ...) ...) . lines)
(string-append
(scm->sway-config (map (lambda (b) (cons 'bindsym b)) bindings))
(scm->sway-config lines)))
;; Support multi-binding extension
((('bindsym (shortcuts ...) action ...) . lines)
(string-append
(apply string-append
(map (lambda (s)
(string-append "bindsym "
(ensure-string s)
" "
(string-join (map ensure-string action))
"\n"))
shortcuts))
(scm->sway-config lines)))
;; Support bindings with multiple actions (not an extension)
((('bindsym shortcut (actions ...) ...) . lines)
(string-append
"bindsym " (ensure-string shortcut) " "
(string-join
(map
(lambda (ls)
(string-join (map ensure-string ls)))
actions)
"; ")
"\n"
(scm->sway-config lines)))
;; for_window support
((('for-window (criteria ...) command ...) . lines)
(let ((criteria->string
(lambda (c)
(string-append " [" (ensure-string (car c)) "=" (ensure-string (cadr c)) "] " ))))
(string-append
"for_window"
(criteria->string criteria)
(string-join (map ensure-string command))
"\n"
(scm->sway-config lines))))
;; Support blocks (such as for mode definitions like resize mode)
(((block-start ... (block-body ...)) . lines)
(string-append
(string-join (map ensure-string block-start)) " {\n"
(scm->sway-config block-body)
"}\n"
(scm->sway-config lines)))
;; set block
((('set . variables) . lines)
(apply string-append
(append
(map (lambda (v) (string-join (list "set" (scm->sway-config (list v)))))
(plist->list-of-lists variables))
(list (scm->sway-config lines)))))
;; Default parsing
((line . lines)
(string-append
(string-join (map ensure-string line))
"\n"
(scm->sway-config lines)))))))
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