Files
libgtop/guile/header.scm
1998-05-19 18:19:50 +00:00

441 lines
11 KiB
Scheme

;; $Id$
(define cpu-type '(("name" . "cpu")
("label" . "CPU Usage")
("fields" . (list
(("name" . "total")
("label" . "Total CPU Usage")
("type" . "unsigned long"))
(("name" . "user")
("type" . "unsigned long"))
(("name" . "nice")
("type" . "unsigned long"))
(("name" . "sys")
("type" . "unsigned long"))
(("name" . "idle")
("type" . "unsigned long"))
(("name" . "name")
("type" . "const char")
("pointer" . #t))
(("name" . "test"))
)
)
)
)
(define main-function
(lambda (definition)
(letrec ((default-type "unsigned long")
(struct-label-comments #t)
(struct-name-comments #f)
(default-name-tabs-first 3)
(default-name-tabs 4)
(default-type-tabs 2)
(default-comment-tabs 5)
(default-definition-tabs 3)
(default-definition-value-tabs 2)
(default-max-line-length 60)
;; set default values for unspecified fields
(check-field-definition
(lambda (fields)
(let ((newlist (list)))
(for-each
(lambda (field)
(if (not (assoc-ref field "type"))
(set! field (assoc-set! field "type" default-type)))
(if (assoc-ref field "label")
(set! field (assoc-set! field "has-label" #t))
(begin
(set! field (assoc-set! field "label" (assoc-ref field "name")))
(set! field (assoc-set! field "has-label" #f))
)
)
(set! newlist (append newlist (list field)))
)
(cdr fields))
(set-cdr! fields newlist)
)
)
)
;; number fields sequentially
(make-field-numbers
(lambda (fields)
(let ((pos 0) (newlist (list)))
(for-each
(lambda (field)
(set! field (assoc-set! field "number" pos))
(set! newlist (append newlist (list field)))
(set! pos (+ pos 1))
)
(cdr fields))
(set-cdr! fields newlist)
(set! definition (assoc-set! definition "max-fields" pos))
)
)
)
;; pad string with up to 'tabs' tabs
(tabify-string
(lambda (string tabs)
(let ((length (string-length string))
(tlength (* tabs 8)))
(if (> tlength length)
(let* ((diff (- tlength length))
(count (quotient (+ diff 7) 8)))
(string-append string
(make-string count #\tab))
)
(string-append string
#\space)
)
)
)
)
;; pad string with spaces
(spacify-string
(lambda (string tabs)
(let ((length (string-length string))
(tlength (* tabs 8)))
(if (> tlength length)
(string-append string
(make-string (- tlength length) #\space))
(string-append string
#\space)
)
)
)
)
;; creates comment string
(make-comment-string
(lambda (comment)
(if comment
(string "/* "
(spacify-string comment
default-comment-tabs)
" */")
(string)
)
)
)
;; create constant for entry (eg. GLIBTOP_CPU_TOTAL)
(entry-constant-name
(lambda (name)
(string-upcase! (string "GLIBTOP_"
(assoc-ref definition "name")
"_"
name
)
)
)
)
;; create text that is displayed as comment along with entry
(entry-comment-text
(lambda (name label)
(if label
(if struct-label-comments label #f)
(if struct-name-comments (entry-constant-name name) #f)
)
)
)
;; starts struct definition
(make-struct-definition-head
(lambda ()
(let* ((class (assoc-ref definition "name"))
)
(string "struct _glibtop_" class "\n"
"{\n"
)
)
)
)
;; terminates struct definition
(make-struct-definition-tail
(lambda ()
(string "};\n\n")
)
)
;; generate struct definition body
(make-struct-definition-body
(lambda (fields)
(letrec ((output (string))
(is-first-entry #t)
(current-type #f)
(current-name #f)
(current-label #f)
(current-pointer #f)
;; close entry (other = next entry is of other type)
(entry-end
(lambda (other)
(let ((old-first is-first-entry))
(set! is-first-entry other)
(if current-type
(string (tabify-string (string (string (if current-pointer "*" ""))
current-name
(string (if other ";" ","))
)
(if old-first
default-name-tabs-first
default-name-tabs
)
)
(make-comment-string (entry-comment-text
current-name current-label))
"\n")
(string)
)
)
)
)
;; start new entry
(entry-start
(lambda (name type)
(if current-type
(if (equal? current-type type)
(string (entry-end #f) "\t\t")
(string (entry-end #t) "\t"
(tabify-string type default-type-tabs)
)
)
(string "\t"
(tabify-string type default-type-tabs)
)
)
)
)
)
;; main function
(for-each
(lambda (field)
(let ((name (assoc-ref field "name"))
(type (assoc-ref field "type"))
(pointer (assoc-ref field "pointer"))
(label (if (assoc-ref field "has-label")
(assoc-ref field "label")
#f)
)
)
(set! output (string-append output
(string (entry-start name type))
)
)
;; save current data
(set! current-type type)
(set! current-name name)
(set! current-label label)
(set! current-pointer pointer)
)
)
(cdr fields))
;; close last entry
(string-append output (entry-end #t))
)
)
)
;; display complete struct definition
(make-struct-definition
(lambda (fields)
(string-append (make-struct-definition-head)
(make-struct-definition-body fields)
(make-struct-definition-tail)
)
)
)
;; make constant definition
(make-const-definition
(lambda (name value comment)
(let* ((nstring (string-upcase! (string "GLIBTOP_" name)))
(tabname (tabify-string nstring default-definition-tabs))
(tabvalue (if comment
(tabify-string (string value) default-definition-value-tabs)
(string value))
)
(ctext (make-comment-string comment))
(line (string "#define " tabname tabvalue ctext "\n"))
)
line)
)
)
;; creates constant definitions
(make-struct-constants
(lambda (fields)
(let ((class (assoc-ref definition "name"))
(output (string))
)
(for-each
(lambda (field)
(let* ((name (assoc-ref field "name"))
(number (assoc-ref field "number"))
(key (string class "_" name))
(value (number->string number))
(label (if (assoc-ref field "has-label")
(assoc-ref field "label")
#f)
)
(line (make-const-definition key
value
(entry-comment-text name label)
)
)
)
(set! output (string-append output line))
)
)
(cdr fields))
output)
)
)
;; creates definition of maximum constant
(make-struct-max-constant
(lambda ()
(let* ((class (assoc-ref definition "name"))
(max (assoc-ref definition "max-fields"))
)
(make-const-definition (string "MAX_" class)
(number->string max)
#f)
)
)
)
;; adds new list element to string, inserting newline if necessary
(add-to-string
(lambda (output line element separator indent max-length)
(let* ((slen (string-length line))
(elen (string-length element))
(tlen (+ slen elen))
(bsep (if separator
(string separator " ")
(string)
)
)
(nsep (string (if separator separator "") "\n"))
)
(if (and (> slen 0) (> tlen max-length))
(begin
(set! output (string-append output line nsep))
(set! line (string indent element))
)
(set! line (string-append line bsep element))
)
(list output line)
)
)
)
;; create general list definition
(make-general-list-definition
(lambda (fields name symbol line-length make-element-string)
(letrec ((class (assoc-ref definition "name"))
(make-general-list-definition-head
(lambda ()
(string "const char *"
"glibtop_"
symbol
"_"
class
" "
"[GLIBTOP_MAX_"
(string-upcase! (string class))
"] = \n{ "
)
)
)
(make-general-list-definition-tail
(lambda ()
(string "\n};\n")
)
)
(make-general-list-definition-body
(lambda ()
(let* ((first #t) (output (string)) (line (string)))
(for-each
(lambda (field)
(let* ((element (assoc-ref field name))
(olist (add-to-string output line
(make-element-string element)
(if first #f ",")
" "
line-length))
)
(set! output (car olist))
(set! line (car (cdr olist)))
(set! first #f)
)
)
(cdr fields))
(set! output (string-append output line))
output)
)
)
)
;; main function
(string-append (make-general-list-definition-head)
(make-general-list-definition-body)
(make-general-list-definition-tail)
)
)
)
)
;; create name list definition
(make-name-list-definition
(lambda (fields)
(make-general-list-definition fields
"name"
"names"
default-max-line-length
(lambda (x)
(string #\" x #\")
)
)
)
)
;; create label list definition
(make-label-list-definition
(lambda (fields)
(make-general-list-definition fields
"label"
"labels"
0
(lambda (x)
(string "gettext_noop (" #\" x #\" ")")
)
)
)
)
;; create description list definition
(make-description-list-definition
(lambda (fields)
(make-general-list-definition fields
"description"
"descriptions"
default-max-line-length
(lambda (x)
(if x
(string "gettext_noop (" #\" x #\" ")")
(string "NULL")
)
)
)
)
)
)
;; start of main function
(let ((fielddef (assoc-ref definition "fields")))
(display fielddef) (newline) (newline)
(check-field-definition fielddef)
(make-field-numbers fielddef)
(display fielddef) (newline) (newline)
(display (make-struct-definition fielddef))
(display (make-struct-constants fielddef)) (newline)
(display (make-struct-max-constant)) (newline) (newline)
(display (make-name-list-definition fielddef)) (newline)
(display (make-label-list-definition fielddef)) (newline)
(display (make-description-list-definition fielddef)) (newline)
)
)
)
)
(begin
(main-function cpu-type)
(newline)
)