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3 |
atypic |
;;;
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(in-package #:sexptomem)
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(sexp-to-memory*
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(%nil
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%t
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%if
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%quote
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%lambda
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%progn
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%cons
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%car
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%cdr
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%eval
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%apply
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%type
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%make-array
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%array-size
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%array-get
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%array-set
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%make-symbol
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%symbol-to-string
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%char-to-int
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%int-to-char
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%get-char
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%put-char
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%num-devices
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%device-type
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%set-address
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%get-address
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%error
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%add
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%sub
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%mul
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%div
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%bitwise-and
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%bitwise-or
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%bitwise-not
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%bitwise-shift
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%current-environment
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%make-eval-state
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%eval-partial
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%define
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%undefine
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%eq?
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%num-eq?
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%char-eq?
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%less-than?
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%mod
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%set!
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%set-car!
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%set-cdr!
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%function-data
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%builtin-name
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%device-size
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%device-status
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xxxaa
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xxxab
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xxxac
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xxxad
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xxxae
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xxxaf
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xxxag
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xxxah
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xxxai
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xxxaj
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xxxak
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%symbol-table
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%phase-eval
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%phase-eval-args
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%phase-apply
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%phase-eval-if
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%phase-initial
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%phase-env-lookup
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%phase-env-lookup-local
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%phase-apply-function
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%phase-bind-args
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%phase-eval-progn
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%phase-eval-args-top
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%phase-eval-args-cdr
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%phase-eval-args-cons
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%phase-eval-symbol
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%phase-set!
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xxx3F
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%timeout
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%err-invalid-phase
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%err-unbound-symbol
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%err-invalid-param-list
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%err-too-few-args
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%err-too-many-args
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%err-invalid-state
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%err-invalid-arg-list
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%err-type-error
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%err-not-a-list
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%err-not-a-function
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%err-invalid-function
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%err-malformed-form
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%err-invalid-builtin
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%err-invalid-array-index
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%err-invalid-env
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%err-not-a-pair
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%err-division-by-zero
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%err-overflow
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)
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(%progn
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(%progn ; Define types
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(%define '+type-none+ #x0)
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(%define '+type-int+ #x1)
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(%define '+type-float+ #x3)
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(%define '+type-cons+ #x4)
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(%define '+type-snoc+ #x5)
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(%define '+type-ptr+ #x6)
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(%define '+type-array+ #x7)
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(%define '+type-nil+ #x8)
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(%define '+type-t+ #x9)
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| 123 |
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(%define '+type-char+ #xA)
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(%define '+type-symbol+ #xB)
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(%define '+type-function+ #xC)
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(%define '+type-builtin+ #xD)
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)
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(%define 'current-input 2)
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(%define 'current-output 2)
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| 132 |
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(%define '*print-base* 16)
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| 134 |
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(%define '1+ (%lambda 1+ (x)
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(%add 1 x)))
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(%define '1- (%lambda 1- (x) (%sub x 1)))
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| 138 |
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| 139 |
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(%define 'map (%lambda map (fn list)
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(%if list
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| 141 |
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(%cons (fn (%car list))
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| 142 |
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(map fn (%cdr list)))
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%nil)))
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| 144 |
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| 145 |
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(%define 'map-short (%lambda map-short (fn list)
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(%if list
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| 147 |
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(%cons (fn (%car list))
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(map fn (%cdr list)))
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| 149 |
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%nil)))
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| 150 |
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| 151 |
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| 152 |
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(%define 'list (%lambda list list list))
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| 153 |
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| 154 |
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(%define 'char-upper (%lambda char-upper (char)
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| 155 |
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(let ((n (%char-to-int char)))
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| 156 |
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(%if (%less-than? (1- (%char-to-int #\a)) n)
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| 157 |
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(%if (%less-than? n (1+ (%char-to-int #\z)))
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| 158 |
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(%int-to-char (%sub n 32))
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| 159 |
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char)
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| 160 |
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char))))
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| 161 |
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| 162 |
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(%define 'make-string-stream (%lambda make-string-stream (str pos)
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| 163 |
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(%lambda string-stream (cmd)
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| 164 |
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(%if (%eq? cmd 'get-char)
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| 165 |
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(%if (%less-than? (1- (%array-size str)) pos)
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| 166 |
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'eos
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| 167 |
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(%progn
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| 168 |
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(%set! 'pos (1+ pos))
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| 169 |
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(%array-get str (1- pos))))
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| 170 |
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(%if (%eq? cmd 'peek-char)
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| 171 |
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(%if (%less-than? (1- (%array-size str)) pos)
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| 172 |
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'eos
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| 173 |
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(%array-get str pos))
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| 174 |
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%nil)))))
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| 175 |
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| 176 |
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(%define 'make-device-input-stream (%lambda make-device-input-stream (device-number)
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| 177 |
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(let ((chpeek %nil))
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| 178 |
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(%lambda device-input-stream (cmd)
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| 179 |
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(%if (%eq? cmd 'get-char)
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| 180 |
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(let ((thech (%if chpeek
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| 181 |
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(let ((ch chpeek))
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| 182 |
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(%set! 'chpeek %nil)
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| 183 |
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ch)
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| 184 |
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(%get-char device-number))))
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| 185 |
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(%if (or2 (%num-eq? device-number 2) (%num-eq? device-number 0))
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| 186 |
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(%put-char current-output thech)
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| 187 |
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%nil)
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| 188 |
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thech)
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| 189 |
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(%if (%eq? cmd 'peek-char)
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| 190 |
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(%if chpeek
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| 191 |
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chpeek
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| 192 |
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(%set! 'chpeek (%get-char device-number)))
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| 193 |
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%nil))))))
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| 194 |
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| 195 |
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| 196 |
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| 197 |
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| 198 |
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| 199 |
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(%define
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| 200 |
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'stream-wrapper-narwhal
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| 201 |
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(%lambda stream-wrapper-narwhal (stream)
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| 202 |
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(let ((chpeek %nil))
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| 203 |
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(%lambda input-stream (cmd)
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| 204 |
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(%if (%eq? cmd 'get-char)
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| 205 |
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(%if chpeek
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| 206 |
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(let ((chkeep chpeek))
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| 207 |
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(%set! 'chpeek %nil)
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| 208 |
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chkeep)
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| 209 |
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(stream 'get-char))
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| 210 |
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(%if (%eq? cmd 'peek-char)
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| 211 |
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(%if chpeek
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| 212 |
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chpeek
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| 213 |
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(%set! 'chpeek (stream 'get-char)))
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| 214 |
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(%error 'I-<3-YOU-STREAM-WRAPPER)))))))
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| 215 |
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| 216 |
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;Code for reading the filesystem
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| 217 |
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;Filetable first, each entry has [in use, filename, start-block, length]
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| 218 |
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;Then comes one word per block, which is rather hilarious usage of space...
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| 219 |
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;... "meta-info" about blocks, we'll call it. suuure.
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| 220 |
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;Then comes the blocks. Each block is some size. A block has a pointer to
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| 221 |
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;the next block that follows it.
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| 222 |
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| 223 |
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;The fileinfo (file identifier) passed around.
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| 224 |
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(%define '+fileinfo-num-fields+ 6)
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| 225 |
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(%define '+fileinfo-name+ 0)
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| 226 |
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(%define '+fileinfo-tableindex+ 1)
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| 227 |
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(%define '+fileinfo-block+ 2)
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| 228 |
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(%define '+fileinfo-block-pos+ 3)
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| 229 |
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(%define '+fileinfo-current-pos+ 4)
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| 230 |
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(%define '+fileinfo-size+ 5)
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| 231 |
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| 232 |
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;The metadata structure.
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| 233 |
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(%define '+metadata-pos+ 0)
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| 234 |
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(%define '+metadata-size+ 16)
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| 235 |
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(%define '+metadata-num-blocks+ 0)
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| 236 |
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(%define '+metadata-free-blocks+ 1)
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| 237 |
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(%define '+metadata-blocksize+ 2)
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| 238 |
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(%define '+metadata-block-pos+ 3)
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| 239 |
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(%define '+metadata-ft-num-rows+ 4) ;number of filetable rows
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| 240 |
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(%define '+metadata-ft-free-rows+ 5) ;number of free rows
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| 241 |
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(%define '+metadata-ft-rowsize+ 6) ;size of a filetable row
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| 242 |
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(%define '+metadata-ft-pos+ 7) ;position of filetable (absolute address)
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| 243 |
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| 244 |
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;The filetable structure and various values
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| 245 |
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(%define '+filetable-pos+ 16)
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| 246 |
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(%define '+filetable-field-size+ 16)
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| 247 |
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(%define '+filetable-num-rows+ 2)
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| 248 |
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(%define '+filetable-size+ 32)
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| 249 |
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(%define '+filetable-not-in-use-marker+ 0)
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| 250 |
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(%define '+filetable-field-in-use+ 0)
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| 251 |
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(%define '+filetable-field-filename+ 1)
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| 252 |
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(%define '+filetable-field-start-block+ 14)
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| 253 |
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(%define '+filetable-field-filesize+ 15)
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| 254 |
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(%define '+filename-size+ 13)
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| 255 |
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| 256 |
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;The blocktale structure
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| 257 |
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(%define '+blocktable-pos+ 48)
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| 258 |
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(%define '+blocktable-size+ 8)
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| 259 |
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| 260 |
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;Various defines partaining to blocks
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| 261 |
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(%define '+block-section-pos+ 56)
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| 262 |
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(%define '+block-size+ 8)
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| 263 |
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(%define '+num-blocks+ 8)
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| 264 |
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| 265 |
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| 266 |
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;The device used for storage
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| 267 |
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(%define '+storage-dev+ 1)
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| 268 |
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| 269 |
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| 270 |
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;get the ith entry from the filetable, put it in an array
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| 271 |
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(defun filetable-entry (index)
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| 272 |
|
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(get-string
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| 273 |
|
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(address-of-entry index)
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| 274 |
|
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(metadata +metadata-ft-rowsize+)))
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| 275 |
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| 276 |
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(%define '+file-null-char+ 4)
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| 277 |
|
|
|
| 278 |
|
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;should've had array-append...
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| 279 |
|
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(defun count-non-null* (s pos num)
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| 280 |
|
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(%if (%num-eq?
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| 281 |
|
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(%array-size s)
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| 282 |
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pos)
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| 283 |
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num
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| 284 |
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(%if (%num-eq?
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| 285 |
|
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+file-null-char+
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| 286 |
|
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(%char-to-int (%array-get s pos)))
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| 287 |
|
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(count-non-null* s (1+ pos) num)
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| 288 |
|
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(count-non-null* s (1+ pos) (1+ num)))))
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| 289 |
|
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(defun count-non-null (s)
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| 290 |
|
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(count-non-null* s 0 0))
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| 291 |
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| 292 |
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| 293 |
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| 294 |
|
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(defun strip-null (s)
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| 295 |
|
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(array-resize s (count-non-null s)))
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| 296 |
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| 297 |
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| 298 |
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| 299 |
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| 300 |
|
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(defun array-resize* (new arr size pos)
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| 301 |
|
|
(%if (%num-eq?
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| 302 |
|
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size
|
| 303 |
|
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pos)
|
| 304 |
|
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new
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| 305 |
|
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(%progn
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| 306 |
|
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(%array-set new pos (%array-get arr pos))
|
| 307 |
|
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(array-resize* new arr size (1+ pos)))))
|
| 308 |
|
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| 309 |
|
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(defun array-resize (arr size)
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| 310 |
|
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(let ((new (%make-array size %nil)))
|
| 311 |
|
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(array-resize* new arr size 0)))
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| 312 |
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| 313 |
|
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| 314 |
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| 315 |
|
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| 316 |
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| 317 |
|
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| 318 |
|
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(defun str-eq?* (f1 f2 pos)
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| 319 |
|
|
(%if
|
| 320 |
|
|
(%num-eq? (%array-size f1) pos)
|
| 321 |
|
|
%t
|
| 322 |
|
|
(%if (%char-eq?
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| 323 |
|
|
(%array-get f1 pos)
|
| 324 |
|
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(%array-get f2 pos))
|
| 325 |
|
|
(str-eq?* f1 f2 (1+ pos))
|
| 326 |
|
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%nil)))
|
| 327 |
|
|
|
| 328 |
|
|
(defun str-eq? (f1 f2)
|
| 329 |
|
|
(%if (%num-eq? (%array-size f1) (%array-size f2))
|
| 330 |
|
|
(str-eq?* f1 f2 0)
|
| 331 |
|
|
%nil))
|
| 332 |
|
|
|
| 333 |
|
|
;slice of a part of an array of chars [tested ok...]
|
| 334 |
|
|
(%define
|
| 335 |
|
|
'string-slice*
|
| 336 |
|
|
(%lambda
|
| 337 |
|
|
string-slice* (str slice stringpos pos len)
|
| 338 |
|
|
(%if (%num-eq? pos len)
|
| 339 |
|
|
slice
|
| 340 |
|
|
(%progn
|
| 341 |
|
|
(%array-set slice pos (%array-get str stringpos))
|
| 342 |
|
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(string-slice* str slice (1+ stringpos) (1+ pos) len)))))
|
| 343 |
|
|
|
| 344 |
|
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(%define
|
| 345 |
|
|
'string-slice
|
| 346 |
|
|
(%lambda
|
| 347 |
|
|
string-slice (str start len)
|
| 348 |
|
|
(let ((slice (%make-array len %nil)))
|
| 349 |
|
|
(string-slice* str slice start 0 len))))
|
| 350 |
|
|
|
| 351 |
|
|
|
| 352 |
|
|
;get the filename of an entry in the filetable
|
| 353 |
|
|
(%define
|
| 354 |
|
|
'filetable-entry-filename
|
| 355 |
|
|
(%lambda filetable-entry-filename (filetable-entry)
|
| 356 |
|
|
(string-slice
|
| 357 |
|
|
filetable-entry
|
| 358 |
|
|
+filetable-field-filename+
|
| 359 |
|
|
+filename-size+)))
|
| 360 |
|
|
|
| 361 |
|
|
(%define
|
| 362 |
|
|
'filetable-entry-block
|
| 363 |
|
|
(%lambda filetable-entry-block (filetable-entry)
|
| 364 |
|
|
(%char-to-int
|
| 365 |
|
|
(%array-get filetable-entry +filetable-field-start-block+))))
|
| 366 |
|
|
|
| 367 |
|
|
(%define
|
| 368 |
|
|
'filetable-entry-size
|
| 369 |
|
|
(%lambda filetable-entry-size (filetable-entry)
|
| 370 |
|
|
(%char-to-int
|
| 371 |
|
|
(%array-get filetable-entry +filetable-field-filesize+))))
|
| 372 |
|
|
|
| 373 |
|
|
|
| 374 |
|
|
|
| 375 |
|
|
(defun filetable-entry-in-use (entry)
|
| 376 |
|
|
(%if (%num-eq?
|
| 377 |
|
|
(%char-to-int (%array-get entry +filetable-field-in-use+))
|
| 378 |
|
|
0)
|
| 379 |
|
|
%nil
|
| 380 |
|
|
%T))
|
| 381 |
|
|
;Get the starting block of the file at index in filetable
|
| 382 |
|
|
(%define
|
| 383 |
|
|
'filetable-start-block
|
| 384 |
|
|
(%lambda filetable-start-block (index)
|
| 385 |
|
|
(%progn
|
| 386 |
|
|
(%set-address +storage-dev+ 0)
|
| 387 |
|
|
(%char-to-int (%get-char (%add
|
| 388 |
|
|
(%mul +filetable-field-size+ index)
|
| 389 |
|
|
+filetable-field-start-block+))))))
|
| 390 |
|
|
|
| 391 |
|
|
;Get the size of the file at index in the filetable
|
| 392 |
|
|
(%define
|
| 393 |
|
|
'filetable-filesize
|
| 394 |
|
|
(%lambda filetable-filesize
|
| 395 |
|
|
(%set-address +storage-dev+ 0)
|
| 396 |
|
|
(%char-to-int (%get-char (%add
|
| 397 |
|
|
(%mul +filetable-field-size+ index)
|
| 398 |
|
|
+filetable-field-filesize+)))))
|
| 399 |
|
|
|
| 400 |
|
|
;put length chars from starting-position into an array of length size
|
| 401 |
|
|
(defun get-string* (str len pos)
|
| 402 |
|
|
(%if (%num-eq? pos len)
|
| 403 |
|
|
str
|
| 404 |
|
|
(%progn
|
| 405 |
|
|
(%array-set str pos (%get-char +storage-dev+))
|
| 406 |
|
|
(get-string* str len (1+ pos)))))
|
| 407 |
|
|
|
| 408 |
|
|
|
| 409 |
|
|
(defun get-string (start-pos length)
|
| 410 |
|
|
(let ((string (%make-array length %nil)))
|
| 411 |
|
|
(%set-address +storage-dev+ start-pos)
|
| 412 |
|
|
(get-string* string length 0)))
|
| 413 |
|
|
|
| 414 |
|
|
|
| 415 |
|
|
(defun put-string* (src len pos)
|
| 416 |
|
|
(%if (%num-eq? pos len)
|
| 417 |
|
|
src
|
| 418 |
|
|
(%progn
|
| 419 |
|
|
(%put-char +storage-dev+ (%array-get src pos))
|
| 420 |
|
|
(put-string* src len (1+ pos)))))
|
| 421 |
|
|
|
| 422 |
|
|
(defun put-string (dst string)
|
| 423 |
|
|
(%set-address +storage-dev+ dst)
|
| 424 |
|
|
(put-string* string (%array-size string) 0))
|
| 425 |
|
|
|
| 426 |
|
|
;iterate file-table, find matching filename and return the fileinfo-entry, used by streams
|
| 427 |
|
|
(defun open-file* (filename file-info index)
|
| 428 |
|
|
(%if (%num-eq?
|
| 429 |
|
|
(metadata +metadata-ft-num-rows+)
|
| 430 |
|
|
index)
|
| 431 |
|
|
(display "No such file or filename. IGOR is not happy, making him work this much...")
|
| 432 |
|
|
|
| 433 |
|
|
(let ((entry (filetable-entry index))) ;get ith entry in filetable
|
| 434 |
|
|
(%if (filetable-entry-in-use entry)
|
| 435 |
|
|
(let ((entry-filename (strip-null (filetable-entry-filename entry)))) ;store filename
|
| 436 |
|
|
(%if (str-eq? entry-filename filename) ;compare filenames, if equal:
|
| 437 |
|
|
(%progn
|
| 438 |
|
|
;create a file-info structure
|
| 439 |
|
|
(%array-set file-info +fileinfo-name+ entry-filename)
|
| 440 |
|
|
(%array-set file-info +fileinfo-block+ (filetable-entry-block entry))
|
| 441 |
|
|
(%array-set file-info +fileinfo-size+ (filetable-entry-size entry))
|
| 442 |
|
|
file-info)
|
| 443 |
|
|
;filename mismatch, next entry please
|
| 444 |
|
|
(open-file* filename file-info (1+ index))))
|
| 445 |
|
|
(open-file* filename file-info (1+ index)))))) ;entry not in use, next.
|
| 446 |
|
|
|
| 447 |
|
|
(defun open-file (filename)
|
| 448 |
|
|
(let ((file-info (%make-array +fileinfo-num-fields+ 0)))
|
| 449 |
|
|
(open-file* filename file-info 0)))
|
| 450 |
|
|
|
| 451 |
|
|
|
| 452 |
|
|
|
| 453 |
|
|
|
| 454 |
|
|
(defun filetable-get-offset (filename index)
|
| 455 |
|
|
(let ((current-filename (get-string
|
| 456 |
|
|
(%add
|
| 457 |
|
|
+filetable-field-fieldname+ (%mul
|
| 458 |
|
|
index
|
| 459 |
|
|
+filetable-field-size+))
|
| 460 |
|
|
+filename-size+)))))
|
| 461 |
|
|
|
| 462 |
|
|
|
| 463 |
|
|
|
| 464 |
|
|
(defun file-address (file-info)
|
| 465 |
|
|
(%add
|
| 466 |
|
|
(address-of-block (%array-get file-info +fileinfo-block+))
|
| 467 |
|
|
(%array-get file-info +fileinfo-block-pos+)))
|
| 468 |
|
|
|
| 469 |
|
|
(%define
|
| 470 |
|
|
'make-fisk-stream
|
| 471 |
|
|
(%lambda make-fisk-stream (open-fisk-dings)
|
| 472 |
|
|
(stream-wrapper-narwhal
|
| 473 |
|
|
(%lambda fisk-stream (cmd)
|
| 474 |
|
|
(%if (%eq? cmd 'get-char)
|
| 475 |
|
|
(file-get-char open-fisk-dings))))))
|
| 476 |
|
|
|
| 477 |
|
|
|
| 478 |
|
|
(%define
|
| 479 |
|
|
'file-eof?
|
| 480 |
|
|
(%lambda file-eof? (file-info)
|
| 481 |
|
|
(%if (%eq?
|
| 482 |
|
|
(%array-get file-info +fileinfo-current-pos+)
|
| 483 |
|
|
(%array-get file-info +fileinfo-size+))
|
| 484 |
|
|
%t
|
| 485 |
|
|
%nil)))
|
| 486 |
|
|
(%define
|
| 487 |
|
|
'file-get-char
|
| 488 |
|
|
(%lambda file-get-char (file-info)
|
| 489 |
|
|
(%if (file-eof? file-info)
|
| 490 |
|
|
(%error 'EOF)
|
| 491 |
|
|
(let ((ch (file-read-char file-info)))
|
| 492 |
|
|
|
| 493 |
|
|
(file-increment-pos file-info)
|
| 494 |
|
|
ch))))
|
| 495 |
|
|
|
| 496 |
|
|
|
| 497 |
|
|
(%define
|
| 498 |
|
|
'file-read-char
|
| 499 |
|
|
(%lambda file-read-char (file-info)
|
| 500 |
|
|
(%progn
|
| 501 |
|
|
(%set-address +storage-dev+ (file-address file-info))
|
| 502 |
|
|
(%get-char +storage-dev+))))
|
| 503 |
|
|
|
| 504 |
|
|
(%define
|
| 505 |
|
|
'file-increment-pos
|
| 506 |
|
|
(%lambda file-increment-pos (file-info)
|
| 507 |
|
|
(%if (file-eof? file-info) ;if we're at the end of the file...
|
| 508 |
|
|
%nil ;...don't increment
|
| 509 |
|
|
(%progn
|
| 510 |
|
|
(%array-set ;else, increment the current-position by 1
|
| 511 |
|
|
file-info
|
| 512 |
|
|
+fileinfo-current-pos+
|
| 513 |
|
|
(1+ (%array-get file-info +fileinfo-current-pos+)))
|
| 514 |
|
|
(%if (end-of-block file-info) ;if end of block...
|
| 515 |
|
|
(%progn
|
| 516 |
|
|
(%array-set
|
| 517 |
|
|
file-info
|
| 518 |
|
|
+fileinfo-block+
|
| 519 |
|
|
(file-next-block
|
| 520 |
|
|
(%array-get file-info +fileinfo-block+))) ;find the next block and set
|
| 521 |
|
|
(%array-set
|
| 522 |
|
|
file-info
|
| 523 |
|
|
+fileinfo-block-pos+
|
| 524 |
|
|
0)) ;and set the current inter-block-position to 0
|
| 525 |
|
|
(%array-set ;else, we're not at the end of the block.
|
| 526 |
|
|
file-info
|
| 527 |
|
|
+fileinfo-block-pos+
|
| 528 |
|
|
(1+ (%array-get file-info +fileinfo-block-pos+)))))))) ; simply update current block
|
| 529 |
|
|
|
| 530 |
|
|
|
| 531 |
|
|
(%define
|
| 532 |
|
|
'end-of-block
|
| 533 |
|
|
(%lambda end-of-block (file-info)
|
| 534 |
|
|
(%if (%num-eq?
|
| 535 |
|
|
(%array-get file-info +fileinfo-block-pos+)
|
| 536 |
|
|
(%sub +block-size+ 2))
|
| 537 |
|
|
%t
|
| 538 |
|
|
%nil);not end of block
|
| 539 |
|
|
))
|
| 540 |
|
|
|
| 541 |
|
|
|
| 542 |
|
|
(%define
|
| 543 |
|
|
'file-next-block
|
| 544 |
|
|
(%lambda file-next-block (current-block)
|
| 545 |
|
|
(%progn
|
| 546 |
|
|
(%set-address
|
| 547 |
|
|
+storage-dev+
|
| 548 |
|
|
(%add
|
| 549 |
|
|
(address-of-block current-block)
|
| 550 |
|
|
(1- +block-size+)))
|
| 551 |
|
|
(%char-to-int (%get-char +storage-dev+)))))
|
| 552 |
|
|
|
| 553 |
|
|
(defun address-of-block (bloc)
|
| 554 |
|
|
(%add
|
| 555 |
|
|
+block-section-pos+
|
| 556 |
|
|
(%mul +block-size+ bloc)))
|
| 557 |
|
|
|
| 558 |
|
|
|
| 559 |
|
|
(defun list-files* (index)
|
| 560 |
|
|
(%if (%num-eq?
|
| 561 |
|
|
index
|
| 562 |
|
|
+filetable-num-rows+)
|
| 563 |
|
|
%T
|
| 564 |
|
|
(let ((entry (filetable-entry index)))
|
| 565 |
|
|
(%if (filetable-entry-in-use entry)
|
| 566 |
|
|
(%progn
|
| 567 |
|
|
(display (strip-null (filetable-entry-filename entry)))
|
| 568 |
|
|
(newline)
|
| 569 |
|
|
(list-files* (1+ index)))
|
| 570 |
|
|
(list-files* (1+ index))))))
|
| 571 |
|
|
|
| 572 |
|
|
(defun list-files ()
|
| 573 |
|
|
(list-files* 0))
|
| 574 |
|
|
|
| 575 |
|
|
|
| 576 |
|
|
(defun metadata (num)
|
| 577 |
|
|
(%set-address +storage-dev+ (%add +metadata-pos+ num))
|
| 578 |
|
|
(%char-to-int (%get-char +storage-dev+)))
|
| 579 |
|
|
|
| 580 |
|
|
;Code for writing to the filesystem is below.
|
| 581 |
|
|
(defun create-file (filename)
|
| 582 |
|
|
(let ((entry (filetable-free-entry)))
|
| 583 |
|
|
(let ((addr (address-of-entry entry)))
|
| 584 |
|
|
(put-char-at-addr addr (%int-to-char 1))
|
| 585 |
|
|
(put-string (%add
|
| 586 |
|
|
addr
|
| 587 |
|
|
+filetable-field-filename+)
|
| 588 |
|
|
filename)
|
| 589 |
|
|
(put-char-at-addr (%add
|
| 590 |
|
|
addr
|
| 591 |
|
|
+filetable-field-start-block+)
|
| 592 |
|
|
(%int-to-char (find-free-block)))
|
| 593 |
|
|
(put-char-at-addr (%add
|
| 594 |
|
|
addr
|
| 595 |
|
|
+filetable-field-filesize+)
|
| 596 |
|
|
(%int-to-char 0))))
|
| 597 |
|
|
(open-file filename))
|
| 598 |
|
|
|
| 599 |
|
|
(defun put-char-at-addr (addr char)
|
| 600 |
|
|
(%set-address +storage-dev+ addr)
|
| 601 |
|
|
(%put-char +storage-dev+ char))
|
| 602 |
|
|
|
| 603 |
|
|
|
| 604 |
|
|
(defun address-of-entry (entry)
|
| 605 |
|
|
(%add
|
| 606 |
|
|
(%mul
|
| 607 |
|
|
entry
|
| 608 |
|
|
(metadata +metadata-ft-rowsize+))
|
| 609 |
|
|
(metadata +metadata-ft-pos+)))
|
| 610 |
|
|
|
| 611 |
|
|
;DOES: Attempts to find a free entry in the file table.
|
| 612 |
|
|
;THROWS: 'filetable-full
|
| 613 |
|
|
(defun filetable-free-entry ()
|
| 614 |
|
|
(%if (%num-eq? (metadata +metadata-ft-free-rows+) 0)
|
| 615 |
|
|
(%error 'filetable-meta-full)
|
| 616 |
|
|
(filetable-free-entry* 0)))
|
| 617 |
|
|
(defun filetable-free-entry* (index)
|
| 618 |
|
|
(%if
|
| 619 |
|
|
(%num-eq?
|
| 620 |
|
|
index
|
| 621 |
|
|
(metadata +metadata-ft-num-rows+))
|
| 622 |
|
|
(%error 'filetable-full)
|
| 623 |
|
|
(%if ;if this entry is not in use
|
| 624 |
|
|
(%num-eq?
|
| 625 |
|
|
(%char-to-int (%array-get (filetable-entry index) +filetable-field-in-use+))
|
| 626 |
|
|
+filetable-not-in-use-marker+);...eh
|
| 627 |
|
|
index ;return the index.
|
| 628 |
|
|
(filetable-free-entry* (1+ index)))))
|
| 629 |
|
|
|
| 630 |
|
|
|
| 631 |
|
|
|
| 632 |
|
|
(defun find-free-block* (index)
|
| 633 |
|
|
(%if
|
| 634 |
|
|
(%num-eq?
|
| 635 |
|
|
(metadata +metadata-num-blocks+)
|
| 636 |
|
|
index)
|
| 637 |
|
|
%nil
|
| 638 |
|
|
(%progn
|
| 639 |
|
|
(%set-address +storage-dev+ (%add +blocktable-pos+ index))
|
| 640 |
|
|
(%if
|
| 641 |
|
|
(%num-eq?
|
| 642 |
|
|
(%char-to-int (%get-char +storage-dev+))
|
| 643 |
|
|
0)
|
| 644 |
|
|
index
|
| 645 |
|
|
(find-free-block* (1+ index))))))
|
| 646 |
|
|
|
| 647 |
|
|
(defun find-free-block ()
|
| 648 |
|
|
(%if
|
| 649 |
|
|
(%num-eq?
|
| 650 |
|
|
(metadata +metadata-free-blocks+)
|
| 651 |
|
|
0)
|
| 652 |
|
|
(%error 'no-free-blocks)
|
| 653 |
|
|
(find-free-block* 0)))
|
| 654 |
|
|
|
| 655 |
|
|
|
| 656 |
|
|
|
| 657 |
|
|
(defun set-block-unfree '()
|
| 658 |
|
|
(display "cannot unfree what has been unseen"))
|
| 659 |
|
|
(defun set-block-free '()
|
| 660 |
|
|
(display "setting a block free!"))
|
| 661 |
|
|
|
| 662 |
|
|
|
| 663 |
|
|
|
| 664 |
|
|
(defun write-filetable-entry (fileinfo)
|
| 665 |
|
|
(let ((entry (filetable-find-free-entry)))))
|
| 666 |
|
|
|
| 667 |
|
|
|
| 668 |
|
|
(%define 'string=-rec (%lambda string=-rec (i s1 s2)
|
| 669 |
|
|
(%if (%num-eq? i (%array-size s1))
|
| 670 |
|
|
%t
|
| 671 |
|
|
(%if (%char-eq? (%array-get s1 i)
|
| 672 |
|
|
(%array-get s2 i))
|
| 673 |
|
|
(string=-rec (1+ i) s1 s2)
|
| 674 |
|
|
%nil))))
|
| 675 |
|
|
|
| 676 |
|
|
(%define 'string=? (%lambda string=? (s1 s2)
|
| 677 |
|
|
(%if (%num-eq? (%array-size s1) (%array-size s2))
|
| 678 |
|
|
(string=-rec 0 s1 s2)
|
| 679 |
|
|
%nil)))
|
| 680 |
|
|
|
| 681 |
|
|
(%define 'symbol-exists?-rec (%lambda symbol-exists?-rec (symbol-table str)
|
| 682 |
|
|
(%if symbol-table
|
| 683 |
|
|
(%if (string=? (%symbol-to-string (%car symbol-table)) str)
|
| 684 |
|
|
(%car symbol-table)
|
| 685 |
|
|
(symbol-exists?-rec (%cdr symbol-table) str))
|
| 686 |
|
|
%nil)))
|
| 687 |
|
|
|
| 688 |
|
|
;; Check if a symbol is interned
|
| 689 |
|
|
(%define 'symbol-exists? (%lambda symbol-exists? (str)
|
| 690 |
|
|
(symbol-exists?-rec %symbol-table str)))
|
| 691 |
|
|
|
| 692 |
|
|
;; Intern a symbol, if it is already intered, just return the symbol
|
| 693 |
|
|
(%define 'intern (%lambda intern (str)
|
| 694 |
|
|
(let ((sym (symbol-exists? str)))
|
| 695 |
|
|
(%if sym sym
|
| 696 |
|
|
(let ((sym (%make-symbol str)))
|
| 697 |
|
|
(%set! '%symbol-table (%cons sym %symbol-table))
|
| 698 |
|
|
sym)))))
|
| 699 |
|
|
|
| 700 |
|
|
(%define
|
| 701 |
|
|
'intern-char-hash
|
| 702 |
|
|
(%lambda
|
| 703 |
|
|
intern-char-hash (ch)
|
| 704 |
|
|
(%bitwise-and (%char-to-int ch) 7)))
|
| 705 |
|
|
|
| 706 |
|
|
(%define
|
| 707 |
|
|
'intern-make-node
|
| 708 |
|
|
(%lambda
|
| 709 |
|
|
intern-make-node ()
|
| 710 |
|
|
(%cons nil (%make-array 8 nil))))
|
| 711 |
|
|
|
| 712 |
|
|
(%define
|
| 713 |
|
|
'intern-get-node
|
| 714 |
|
|
(%lambda
|
| 715 |
|
|
intern-get-node (tab hash)
|
| 716 |
|
|
(%array-get
|
| 717 |
|
|
(%if (%array-get tab hash)
|
| 718 |
|
|
tab
|
| 719 |
|
|
(%array-set tab hash (intern-make-node)))
|
| 720 |
|
|
hash)))
|
| 721 |
|
|
|
| 722 |
|
|
(%define
|
| 723 |
|
|
'intern-get-sym-in-list
|
| 724 |
|
|
(%lambda
|
| 725 |
|
|
intern-get-sym-in-list (str list)
|
| 726 |
|
|
(%if list
|
| 727 |
|
|
(%if (string=? (%symbol-to-string (%car list)) str)
|
| 728 |
|
|
(%car list)
|
| 729 |
|
|
(intern-get-sym-in-list str (%cdr list)))
|
| 730 |
|
|
nil)))
|
| 731 |
|
|
|
| 732 |
|
|
(%define
|
| 733 |
|
|
'intern-rec
|
| 734 |
|
|
(%lambda
|
| 735 |
|
|
intern-rec (str i tree existing-symbol)
|
| 736 |
|
|
(%if (%num-eq? i (%array-size str))
|
| 737 |
|
|
(let ((sym (intern-get-sym-in-list str (%car tree))))
|
| 738 |
|
|
(%if sym sym
|
| 739 |
|
|
(%car (%set-car! tree (%cons (%if existing-symbol
|
| 740 |
|
|
existing-symbol
|
| 741 |
|
|
(%make-symbol str))
|
| 742 |
|
|
(%car tree))))))
|
| 743 |
|
|
(intern-rec
|
| 744 |
|
|
str
|
| 745 |
|
|
(%add i 1)
|
| 746 |
|
|
(intern-get-node (%cdr tree) (intern-char-hash (%array-get str i)))
|
| 747 |
|
|
existing-symbol))))
|
| 748 |
|
|
|
| 749 |
|
|
(%define 'symbol-tree (intern-make-node))
|
| 750 |
|
|
|
| 751 |
|
|
(%define
|
| 752 |
|
|
'intern-foo
|
| 753 |
|
|
(%lambda
|
| 754 |
|
|
intern (str)
|
| 755 |
|
|
(intern-rec str 0 symbol-tree nil)))
|
| 756 |
|
|
|
| 757 |
|
|
(%define
|
| 758 |
|
|
'intern-symbols
|
| 759 |
|
|
(%lambda
|
| 760 |
|
|
intern-symbols (list)
|
| 761 |
|
|
(%if list
|
| 762 |
|
|
(%progn (intern-rec (%symbol-to-string (%car list)) 0 symbol-tree (%car list))
|
| 763 |
|
|
(intern-symbols (%cdr list)))
|
| 764 |
|
|
nil)))
|
| 765 |
|
|
|
| 766 |
|
|
|
| 767 |
|
|
;; See if an element member of a list
|
| 768 |
|
|
(%define 'member (%lambda member (elem list test)
|
| 769 |
|
|
(%if list
|
| 770 |
|
|
(%if (test (%car list) elem)
|
| 771 |
|
|
%t
|
| 772 |
|
|
(member elem (%cdr list) test))
|
| 773 |
|
|
%nil)))
|
| 774 |
|
|
|
| 775 |
|
|
;; Or functions
|
| 776 |
|
|
;; XXX: Special form
|
| 777 |
|
|
(%define 'or2 (%lambda or2 (a b) ; XXX: Special forms
|
| 778 |
|
|
(%if a a b)))
|
| 779 |
|
|
(%define 'or3 (%lambda or3 (a b c)
|
| 780 |
|
|
(or2 a (or2 b c))))
|
| 781 |
|
|
|
| 782 |
|
|
(%define 'digits (%%list #\0 #\1 #\2 #\3 #\4 #\5 #\6 #\7 #\8 #\9))
|
| 783 |
|
|
(%define 'digits-hex (%cons #\a (%cons #\b (%cons #\c (%cons #\d (%cons #\e (%cons #\f
|
| 784 |
|
|
(%cons #\A (%cons #\B (%cons #\C (%cons #\D (%cons #\E (%cons #\F digits)))))))))))))
|
| 785 |
|
|
|
| 786 |
|
|
|
| 787 |
|
|
;; Special characters
|
| 788 |
|
|
;; These will never be in a symbol
|
| 789 |
|
|
(%define 'special (%%list #\( #\) #\Space))
|
| 790 |
|
|
|
| 791 |
|
|
;; Convert a digit character to a digit
|
| 792 |
|
|
(%define 'char-to-digit (%lambda char-to-digit (ch)
|
| 793 |
|
|
(%sub (%char-to-int ch) 48)))
|
| 794 |
|
|
|
| 795 |
|
|
;; Is the character something we want in our symbol?
|
| 796 |
|
|
(%define 'isalpha? (%lambda isalpha? (ch)
|
| 797 |
|
|
(%if (member ch special %char-eq?)
|
| 798 |
|
|
%nil
|
| 799 |
|
|
(%if (member ch digits %char-eq?)
|
| 800 |
|
|
%nil
|
| 801 |
|
|
%t))))
|
| 802 |
|
|
|
| 803 |
|
|
;; Convert a
|
| 804 |
|
|
(%define 'parse-integer* (%lambda parse-integer* (list num radix)
|
| 805 |
|
|
(%if list
|
| 806 |
|
|
|
| 807 |
|
|
|
| 808 |
|
|
(parse-integer* (%cdr list) (%add (%mul num radix) (char->digit (%car list))) radix)
|
| 809 |
|
|
num)))
|
| 810 |
|
|
(%define 'parse-integer (%lambda parse-integer (list)
|
| 811 |
|
|
(parse-integer* list 0 10)))
|
| 812 |
|
|
|
| 813 |
|
|
;; Is the character a whitespace
|
| 814 |
|
|
(%define 'whitespace? (%lambda whitespace? (ch)
|
| 815 |
|
|
(or3 (%char-eq? ch #\Space)
|
| 816 |
|
|
(%char-eq? ch #\Return)
|
| 817 |
|
|
(%char-eq? ch #\Newline))))
|
| 818 |
|
|
|
| 819 |
|
|
;; Length of a list
|
| 820 |
|
|
(%define 'length (%lambda length (list)
|
| 821 |
|
|
(%if list
|
| 822 |
|
|
(1+ (length (%cdr list)))
|
| 823 |
|
|
0)))
|
| 824 |
|
|
|
| 825 |
|
|
;; Convert a list to an array
|
| 826 |
|
|
(%define 'list->string* (%lambda list->string* (list str pos)
|
| 827 |
|
|
(%if list
|
| 828 |
|
|
(%progn
|
| 829 |
|
|
(%array-set str pos (%car list))
|
| 830 |
|
|
(list->string* (%cdr list) str (1+ pos)))
|
| 831 |
|
|
str)))
|
| 832 |
|
|
(%define 'list->string (%lambda list->string (list)
|
| 833 |
|
|
(let ((str (%make-array (length list) #\Space)))
|
| 834 |
|
|
(list->string* list str 0))))
|
| 835 |
|
|
|
| 836 |
|
|
;; Skip whitespace characters from an input stream
|
| 837 |
|
|
(%define 'skip-whitespace (%lambda skip-whitespace (s)
|
| 838 |
|
|
(let ((ch (s (%quote peek-char))))
|
| 839 |
|
|
(%if (%eq? ch 'eos)
|
| 840 |
|
|
ch
|
| 841 |
|
|
(%if (whitespace? ch)
|
| 842 |
|
|
(%progn
|
| 843 |
|
|
(s 'get-char)
|
| 844 |
|
|
(skip-whitespace s))
|
| 845 |
|
|
ch)))))
|
| 846 |
|
|
|
| 847 |
|
|
;; Tokenize a symbol
|
| 848 |
|
|
(%define 'tokenize-sym (%lambda tokenize-sym (s ch)
|
| 849 |
|
|
(%progn
|
| 850 |
|
|
(let ((type
|
| 851 |
|
|
(%if (member ch digits %char-eq?)
|
| 852 |
|
|
'integer
|
| 853 |
|
|
'symbol)))
|
| 854 |
|
|
(%define 'tknz
|
| 855 |
|
|
(%lambda tknz (s)
|
| 856 |
|
|
(let ((ch (s 'peek-char)))
|
| 857 |
|
|
(%if (%eq? ch 'eos)
|
| 858 |
|
|
%nil
|
| 859 |
|
|
(%if (whitespace? ch)
|
| 860 |
|
|
%nil
|
| 861 |
|
|
(%if (isalpha? ch)
|
| 862 |
|
|
(%progn
|
| 863 |
|
|
(%set! 'type 'symbol)
|
| 864 |
|
|
(%cons (s 'get-char)
|
| 865 |
|
|
(tknz s)))
|
| 866 |
|
|
(%if (member ch digits %char-eq?)
|
| 867 |
|
|
(%cons (s 'get-char)
|
| 868 |
|
|
(tknz s))
|
| 869 |
|
|
%nil)))))))
|
| 870 |
|
|
((%lambda snoc (a b)
|
| 871 |
|
|
(%cons b a))
|
| 872 |
|
|
(let ((lst (%cons ch (tknz s))))
|
| 873 |
|
|
((%if (%eq? type 'integer)
|
| 874 |
|
|
parse-integer
|
| 875 |
|
|
list->string)
|
| 876 |
|
|
lst))
|
| 877 |
|
|
type)))))
|
| 878 |
|
|
|
| 879 |
|
|
;; Tokenize a string
|
| 880 |
|
|
(%define 'tokenize-string-rec (%lambda tokenize-string-rec (s)
|
| 881 |
|
|
(let ((ch (s 'get-char)))
|
| 882 |
|
|
(%if (%char-eq? ch #\") ; XXX: Check for end of stream
|
| 883 |
|
|
%nil
|
| 884 |
|
|
|
| 885 |
|
|
(%cons ch (tokenize-string-rec s))))))
|
| 886 |
|
|
|
| 887 |
|
|
(%define 'tokenize-string (%lambda tokenize-string (s)
|
| 888 |
|
|
(let ((sl (tokenize-string-rec s)))
|
| 889 |
|
|
(%cons 'string (list->string sl)))))
|
| 890 |
|
|
|
| 891 |
|
|
;; Tokenize a hash object
|
| 892 |
|
|
(%define 'tokenize-hash-x (%lambda tokenize-hash-x (s)
|
| 893 |
|
|
(%progn
|
| 894 |
|
|
(%define 'rec (%lambda tokenize-hash-x-rec ()
|
| 895 |
|
|
(let ((ch (s 'peek-char)))
|
| 896 |
|
|
(%if (member ch digits-hex %char-eq?)
|
| 897 |
|
|
(%cons (s 'get-char) (rec))
|
| 898 |
|
|
%nil))))
|
| 899 |
|
|
(parse-integer* (rec) 0 16))))
|
| 900 |
|
|
|
| 901 |
|
|
|
| 902 |
|
|
(%define 'tokenize-hash (%lambda tokenize-hash (s)
|
| 903 |
|
|
(let ((ch (s 'get-char)))
|
| 904 |
|
|
(%if (%char-eq? ch #\\)
|
| 905 |
|
|
(%cons 'character (s 'get-char))
|
| 906 |
|
|
(%if (%char-eq? ch #\x)
|
| 907 |
|
|
(%cons 'integer (tokenize-hash-x s))
|
| 908 |
|
|
(%cons 'error "Unknown hash character"))))))
|
| 909 |
|
|
|
| 910 |
|
|
;; Tokenize a stream
|
| 911 |
|
|
(%define 'tokenize (%lambda tokenize (s)
|
| 912 |
|
|
(%progn
|
| 913 |
|
|
(skip-whitespace s)
|
| 914 |
|
|
(let ((ch (s 'get-char)))
|
| 915 |
|
|
(%if (%eq? ch 'eos)
|
| 916 |
|
|
(%cons 'eos %nil)
|
| 917 |
|
|
(%if (%char-eq? ch #\()
|
| 918 |
|
|
(%cons 'lparen %nil)
|
| 919 |
|
|
(%if (%char-eq? ch #\))
|
| 920 |
|
|
(%cons 'rparen %nil)
|
| 921 |
|
|
(%if (%char-eq? ch #\')
|
| 922 |
|
|
(%cons 'quote %nil)
|
| 923 |
|
|
(%if (%char-eq? ch #\")
|
| 924 |
|
|
(tokenize-string s)
|
| 925 |
|
|
(%if (%char-eq? ch #\#)
|
| 926 |
|
|
(tokenize-hash s)
|
| 927 |
|
|
(tokenize-sym s ch)))))))))))
|
| 928 |
|
|
|
| 929 |
|
|
;; Make a token stream
|
| 930 |
|
|
(%define 'make-token-stream (%lambda make-token-stream (s)
|
| 931 |
|
|
(let ((tok %nil))
|
| 932 |
|
|
(%lambda token-stream (cmd)
|
| 933 |
|
|
(%if (%eq? cmd 'next)
|
| 934 |
|
|
(%if tok
|
| 935 |
|
|
(let ((tok2 tok))
|
| 936 |
|
|
(%set! 'tok %nil)
|
| 937 |
|
|
tok2)
|
| 938 |
|
|
(tokenize s))
|
| 939 |
|
|
(%if (%eq? cmd 'peek)
|
| 940 |
|
|
(%if tok
|
| 941 |
|
|
tok
|
| 942 |
|
|
(%progn
|
| 943 |
|
|
(%set! 'tok (tokenize s))
|
| 944 |
|
|
tok))
|
| 945 |
|
|
%nil))))))
|
| 946 |
|
|
|
| 947 |
|
|
;; Parse a list from a token stream
|
| 948 |
|
|
(%define 'parse-list (%lambda parse-list (s)
|
| 949 |
|
|
(let ((tok (s 'peek)))
|
| 950 |
|
|
(let ((token (%car tok)))
|
| 951 |
|
|
(%if (%eq? token 'eos)
|
| 952 |
|
|
(%error "Parse error, missing rparen at end of stream")
|
| 953 |
|
|
(%if (%eq? token 'rparen)
|
| 954 |
|
|
(%progn
|
| 955 |
|
|
(s 'next)
|
| 956 |
|
|
%nil)
|
| 957 |
|
|
(%cons (parse s) (parse-list s))))))))
|
| 958 |
|
|
|
| 959 |
|
|
;; Check if the string is a T type
|
| 960 |
|
|
(%define 'is-t? (%lambda is-t? (str)
|
| 961 |
|
|
(%if (%num-eq? (%array-size str) 1)
|
| 962 |
|
|
(%if (%char-eq? (%array-get str 0) #\T)
|
| 963 |
|
|
%t
|
| 964 |
|
|
%nil)
|
| 965 |
|
|
%nil)))
|
| 966 |
|
|
|
| 967 |
|
|
;; Check if the string s a NIL type
|
| 968 |
|
|
(%define 'is-nil? (%lambda is-nil? (str)
|
| 969 |
|
|
(string=? str "NIL")))
|
| 970 |
|
|
|
| 971 |
|
|
;; Uppercase a string
|
| 972 |
|
|
(%define 'string-upper-rec (%lambda string-upper-rec (orig str i)
|
| 973 |
|
|
(%if (%num-eq? i (%array-size orig))
|
| 974 |
|
|
str
|
| 975 |
|
|
(%progn
|
| 976 |
|
|
(%array-set str i (char-upper (%array-get orig i)))
|
| 977 |
|
|
(string-upper-rec orig str (1+ i))))))
|
| 978 |
|
|
|
| 979 |
|
|
(%define 'string-upper (%lambda string-upper (str)
|
| 980 |
|
|
(let ((str2 (%make-array (%array-size str) #\a)))
|
| 981 |
|
|
(string-upper-rec str str2 0))))
|
| 982 |
|
|
|
| 983 |
|
|
;; Make a symbol of a string
|
| 984 |
|
|
;; T and NIL are "special" symbols
|
| 985 |
|
|
(%define 'symbolify (%lambda symbolify (sym)
|
| 986 |
|
|
(%if (%num-eq? (%array-size sym) 1)
|
| 987 |
|
|
(%if (is-t? sym)
|
| 988 |
|
|
%t
|
| 989 |
|
|
(%if (%char-eq? #\. (%array-get sym 0))
|
| 990 |
|
|
'%.
|
| 991 |
|
|
(intern sym)))
|
| 992 |
|
|
(%if (is-nil? sym)
|
| 993 |
|
|
%nil
|
| 994 |
|
|
(intern sym)))))
|
| 995 |
|
|
;; Parse a token stream
|
| 996 |
|
|
(%define 'parse (%lambda parse (s)
|
| 997 |
|
|
(let ((tok (s 'next)))
|
| 998 |
|
|
(%if (%eq? (%car tok) 'lparen)
|
| 999 |
|
|
(parse-list s)
|
| 1000 |
|
|
(%if (or3 (%eq? (%car tok) 'integer) (%eq? (%car tok) 'string) (%eq? (%car tok) 'character))
|
| 1001 |
|
|
(%cdr tok)
|
| 1002 |
|
|
(%if (%eq? (%car tok) 'symbol)
|
| 1003 |
|
|
(symbolify (string-upper (%cdr tok)))
|
| 1004 |
|
|
(%if (%eq? (%car tok) 'quote)
|
| 1005 |
|
|
(%cons '%quote (%cons (parse s) %nil)))))))))
|
| 1006 |
|
|
|
| 1007 |
|
|
;; Parse a string into cons cells
|
| 1008 |
|
|
(%define 'read-from-string (%lambda read-from-string (str)
|
| 1009 |
|
|
(let ((s (make-token-stream (make-string-stream str 0))))
|
| 1010 |
|
|
(parse s))))
|
| 1011 |
|
|
|
| 1012 |
|
|
;; Write each character in the list to current output
|
| 1013 |
|
|
(%define 'print-list* (%lambda print-list* (list)
|
| 1014 |
|
|
(%if list
|
| 1015 |
|
|
(%progn
|
| 1016 |
|
|
(%put-char current-output (%car list))
|
| 1017 |
|
|
(print-list* (%cdr list)))
|
| 1018 |
|
|
%nil)))
|
| 1019 |
|
|
|
| 1020 |
|
|
;; Print a character
|
| 1021 |
|
|
(%define 'print-char (%lambda print-char (ch)
|
| 1022 |
|
|
(print-list* (%%list #\# #\\ ch))))
|
| 1023 |
|
|
|
| 1024 |
|
|
|
| 1025 |
|
|
;; Check if an array is a string
|
| 1026 |
|
|
(%define 'is-string?-rec (%lambda is-string?-rec (arr i)
|
| 1027 |
|
|
(%if (%num-eq? i (%array-size arr))
|
| 1028 |
|
|
%t
|
| 1029 |
|
|
(%if (%num-eq? (%type (%array-get arr i)) +type-char+)
|
| 1030 |
|
|
(is-string?-rec arr (1+ i))
|
| 1031 |
|
|
%nil))))
|
| 1032 |
|
|
|
| 1033 |
|
|
(%define 'is-string? (%lambda is-string? (arr)
|
| 1034 |
|
|
(is-string?-rec arr 0)))
|
| 1035 |
|
|
|
| 1036 |
|
|
;; Print a string
|
| 1037 |
|
|
(%define 'print-string-rec (%lambda print-string-rec (arr i)
|
| 1038 |
|
|
(%if (%num-eq? (%array-size arr) i)
|
| 1039 |
|
|
%nil
|
| 1040 |
|
|
(%progn
|
| 1041 |
|
|
(%put-char current-output (%array-get arr i))
|
| 1042 |
|
|
(print-string-rec arr (1+ i))))))
|
| 1043 |
|
|
|
| 1044 |
|
|
(%define 'print-string (%lambda print-string (arr)
|
| 1045 |
|
|
(%progn
|
| 1046 |
|
|
(%put-char current-output #\")
|
| 1047 |
|
|
(print-string-rec arr 0)
|
| 1048 |
|
|
(%put-char current-output #\"))))
|
| 1049 |
|
|
|
| 1050 |
|
|
;; Print an array
|
| 1051 |
|
|
(%define 'print-array-rec (%lambda print-array-rec (arr i)
|
| 1052 |
|
|
(%if (%num-eq? (%array-size arr) i)
|
| 1053 |
|
|
%nil
|
| 1054 |
|
|
(%progn
|
| 1055 |
|
|
(print (%array-get arr i))
|
| 1056 |
|
|
(%put-char current-output #\Space)
|
| 1057 |
|
|
(print-array-rec arr (1+ i))))))
|
| 1058 |
|
|
|
| 1059 |
|
|
|
| 1060 |
|
|
(%define 'print-array (%lambda print-array (arr)
|
| 1061 |
|
|
; String is a special type of array
|
| 1062 |
|
|
(%if (is-string? arr)
|
| 1063 |
|
|
(print-string arr)
|
| 1064 |
|
|
(%progn
|
| 1065 |
|
|
(print-list* (%%list #\# #\[))
|
| 1066 |
|
|
(%put-char current-output #\Space)
|
| 1067 |
|
|
(print-array-rec arr 0)
|
| 1068 |
|
|
(%put-char current-output #\])))))
|
| 1069 |
|
|
|
| 1070 |
|
|
;; See if a cons cell really is a list
|
| 1071 |
|
|
(%define 'is-list? (%lambda is-list? (cons)
|
| 1072 |
|
|
(%if (%num-eq? (%type cons) +type-cons+)
|
| 1073 |
|
|
(is-list? (%cdr cons))
|
| 1074 |
|
|
(%if (%num-eq? (%type cons) +type-nil+)
|
| 1075 |
|
|
%t
|
| 1076 |
|
|
%nil))))
|
| 1077 |
|
|
;; Print a list
|
| 1078 |
|
|
(%define 'print-list-rec (%lambda print-list-rec (list)
|
| 1079 |
|
|
(%progn
|
| 1080 |
|
|
(print (%car list))
|
| 1081 |
|
|
(%if (%num-eq? (%type (%cdr list)) +type-nil+)
|
| 1082 |
|
|
%nil
|
| 1083 |
|
|
(%progn
|
| 1084 |
|
|
(%put-char current-output #\Space)
|
| 1085 |
|
|
(print-list-rec (%cdr list)))))))
|
| 1086 |
|
|
|
| 1087 |
|
|
(%define 'print-list (%lambda print-list (list)
|
| 1088 |
|
|
(%progn
|
| 1089 |
|
|
(%put-char current-output #\()
|
| 1090 |
|
|
(print-list-rec list)
|
| 1091 |
|
|
(%put-char current-output #\)))))
|
| 1092 |
|
|
|
| 1093 |
|
|
;; Print a cons cell
|
| 1094 |
|
|
(%define 'print-cons (%lambda print-cons (cons)
|
| 1095 |
|
|
(%if (is-list? cons)
|
| 1096 |
|
|
(print-list cons)
|
| 1097 |
|
|
(%progn
|
| 1098 |
|
|
(%put-char current-output #\()
|
| 1099 |
|
|
(print (%car cons))
|
| 1100 |
|
|
(%put-char current-output #\Space)
|
| 1101 |
|
|
(%put-char current-output #\.)
|
| 1102 |
|
|
(%put-char current-output #\Space)
|
| 1103 |
|
|
(print (%cdr cons))
|
| 1104 |
|
|
(%put-char current-output #\))))))
|
| 1105 |
|
|
|
| 1106 |
|
|
;; Print an integer
|
| 1107 |
|
|
(%define 'print-integer-rec (%lambda print-integer-rec (int list)
|
| 1108 |
|
|
(%if (%num-eq? int 0)
|
| 1109 |
|
|
list
|
| 1110 |
|
|
(print-integer-rec (%if (%num-eq? *print-base* 10)
|
| 1111 |
|
|
(%div int 10)
|
| 1112 |
|
|
(%bitwise-shift int -4))
|
| 1113 |
|
|
(%cons
|
| 1114 |
|
|
(%if (%num-eq? *print-base* 10)
|
| 1115 |
|
|
(%mod int 10)
|
| 1116 |
|
|
(%bitwise-and int #xF))
|
| 1117 |
|
|
list)))))
|
| 1118 |
|
|
|
| 1119 |
|
|
; XXX: Make it an array for direct lookup?
|
| 1120 |
|
|
;; Integer to digit character mapping
|
| 1121 |
|
|
(%define 'digit->char-map (%%list (%cons 0 #\0)
|
| 1122 |
|
|
(%cons 1 #\1)
|
| 1123 |
|
|
(%cons 2 #\2)
|
| 1124 |
|
|
(%cons 3 #\3)
|
| 1125 |
|
|
(%cons 4 #\4)
|
| 1126 |
|
|
(%cons 5 #\5)
|
| 1127 |
|
|
(%cons 6 #\6)
|
| 1128 |
|
|
(%cons 7 #\7)
|
| 1129 |
|
|
(%cons 8 #\8)
|
| 1130 |
|
|
(%cons 9 #\9)
|
| 1131 |
|
|
(%cons 10 #\A)
|
| 1132 |
|
|
(%cons 11 #\B)
|
| 1133 |
|
|
(%cons 12 #\C)
|
| 1134 |
|
|
(%cons 13 #\D)
|
| 1135 |
|
|
(%cons 14 #\E)
|
| 1136 |
|
|
(%cons 15 #\F)
|
| 1137 |
|
|
(%cons 10 #\a)
|
| 1138 |
|
|
(%cons 11 #\b)
|
| 1139 |
|
|
(%cons 12 #\c)
|
| 1140 |
|
|
(%cons 13 #\d)
|
| 1141 |
|
|
(%cons 14 #\e)
|
| 1142 |
|
|
(%cons 15 #\f)))
|
| 1143 |
|
|
;; Convert an integer (0 >= n < 10)
|
| 1144 |
|
|
(%define 'digit->char-rec (%lambda digit->char-rec (int list)
|
| 1145 |
|
|
(%if list
|
| 1146 |
|
|
(%if (%num-eq? (%car (%car list)) int)
|
| 1147 |
|
|
(%cdr (%car list))
|
| 1148 |
|
|
(digit->char-rec int (%cdr list)))
|
| 1149 |
|
|
#\?)))
|
| 1150 |
|
|
(%define 'digit->char (%lambda digit->char (int)
|
| 1151 |
|
|
(digit->char-rec int digit->char-map)))
|
| 1152 |
|
|
|
| 1153 |
|
|
;; Convert a character to a digit [0, F]
|
| 1154 |
|
|
(%define 'char->digit-rec (%lambda digit->char-rec (ch list)
|
| 1155 |
|
|
(%if list
|
| 1156 |
|
|
(%if (%char-eq? (%cdr (%car list)) ch)
|
| 1157 |
|
|
(%car (%car list))
|
| 1158 |
|
|
(char->digit-rec ch (%cdr list)))
|
| 1159 |
|
|
0)))
|
| 1160 |
|
|
(%define 'char->digit (%lambda digit->char (ch)
|
| 1161 |
|
|
(char->digit-rec ch digit->char-map)))
|
| 1162 |
|
|
|
| 1163 |
|
|
(%define 'print-integer (%lambda print-integer (int)
|
| 1164 |
|
|
(%if (%num-eq? int 0)
|
| 1165 |
|
|
(print-list* (%if (%num-eq? *print-base* 10)
|
| 1166 |
|
|
(%%list #\0)
|
| 1167 |
|
|
(%%list #\# #\x #\0)))
|
| 1168 |
|
|
(print-list*
|
| 1169 |
|
|
(let ((start-int (%if (%num-eq? *print-base* 10)
|
| 1170 |
|
|
%nil
|
| 1171 |
|
|
(%%list #\# #\x))))
|
| 1172 |
|
|
(print-list* start-int)
|
| 1173 |
|
|
(%if (%less-than? int 0)
|
| 1174 |
|
|
(%cons #\- (map digit->char (print-integer-rec (%mul (%sub 0 1) int) %nil)))
|
| 1175 |
|
|
(map digit->char (print-integer-rec int %nil))))))))
|
| 1176 |
|
|
|
| 1177 |
|
|
|
| 1178 |
|
|
;; Print a function
|
| 1179 |
|
|
(%define
|
| 1180 |
|
|
'print-function
|
| 1181 |
|
|
(%lambda
|
| 1182 |
|
|
print-function (f)
|
| 1183 |
|
|
(%progn
|
| 1184 |
|
|
(%put-char current-output #\#)
|
| 1185 |
|
|
(%put-char current-output #\()
|
| 1186 |
|
|
(print (function-name f))
|
| 1187 |
|
|
(%put-char current-output #\)))))
|
| 1188 |
|
|
|
| 1189 |
|
|
;; Print a builtin function
|
| 1190 |
|
|
(%define
|
| 1191 |
|
|
'print-builtin
|
| 1192 |
|
|
(%lambda
|
| 1193 |
|
|
print-builtin (b)
|
| 1194 |
|
|
(%progn
|
| 1195 |
|
|
(%put-char current-output #\#)
|
| 1196 |
|
|
(%put-char current-output #\()
|
| 1197 |
|
|
(print (%builtin-name b))
|
| 1198 |
|
|
(%put-char current-output #\)))))
|
| 1199 |
|
|
|
| 1200 |
|
|
|
| 1201 |
|
|
;; Print an object
|
| 1202 |
|
|
(%define
|
| 1203 |
|
|
'print
|
| 1204 |
|
|
(%lambda
|
| 1205 |
|
|
print (expr)
|
| 1206 |
|
|
(%if (%num-eq? (%type expr) +type-t+)
|
| 1207 |
|
|
(%put-char current-output #\T)
|
| 1208 |
|
|
(%if (%num-eq? (%type expr) +type-nil+)
|
| 1209 |
|
|
(print-list* (%%list #\N #\I #\L))
|
| 1210 |
|
|
(%if (%num-eq? (%type expr) +type-char+)
|
| 1211 |
|
|
(print-char expr)
|
| 1212 |
|
|
(%if (%num-eq? (%type expr) +type-array+)
|
| 1213 |
|
|
(print-array expr)
|
| 1214 |
|
|
(%if (%num-eq? (%type expr) +type-cons+)
|
| 1215 |
|
|
(print-cons expr)
|
| 1216 |
|
|
(%if (%num-eq? (%type expr) +type-symbol+)
|
| 1217 |
|
|
(print-string-rec (%symbol-to-string expr) 0)
|
| 1218 |
|
|
(%if (%num-eq? (%type expr) +type-int+)
|
| 1219 |
|
|
(print-integer expr)
|
| 1220 |
|
|
(%if (%num-eq? (%type expr) +type-function+)
|
| 1221 |
|
|
(print-function expr)
|
| 1222 |
|
|
(%if (%num-eq? (%type expr) +type-builtin+)
|
| 1223 |
|
|
(print-builtin expr)
|
| 1224 |
|
|
(%put-char current-output #\#))))))))))))
|
| 1225 |
|
|
|
| 1226 |
|
|
;; Write newline
|
| 1227 |
|
|
(%define 'newline (%lambda newline ()
|
| 1228 |
|
|
(%progn
|
| 1229 |
|
|
(%put-char current-output #\Newline)
|
| 1230 |
|
|
(%put-char current-output #\Return)
|
| 1231 |
|
|
nil)))
|
| 1232 |
|
|
|
| 1233 |
|
|
|
| 1234 |
|
|
;; Parse the input from a device
|
| 1235 |
|
|
(%define 'read-from-device (%lambda read-from-device (input-device)
|
| 1236 |
|
|
(let ((s (make-token-stream (make-device-input-stream input-device))))
|
| 1237 |
|
|
(parse s))))
|
| 1238 |
|
|
|
| 1239 |
|
|
;; Read line
|
| 1240 |
|
|
(%define 'read-line
|
| 1241 |
|
|
(%lambda read-line (input-device)
|
| 1242 |
|
|
(let ((s (make-device-input-stream input-device)))
|
| 1243 |
|
|
(%define 'rec (%lambda read-line-rec ()
|
| 1244 |
|
|
(let ((ch (s 'get-char)))
|
| 1245 |
|
|
(%if (or2 (%char-eq? #\Newline ch) (%char-eq? #\Return ch))
|
| 1246 |
|
|
%nil
|
| 1247 |
|
|
(%cons ch (rec))))))
|
| 1248 |
|
|
(skip-whitespace s)
|
| 1249 |
|
|
(list->string (rec)))))
|
| 1250 |
|
|
|
| 1251 |
|
|
;; Remove backspaced characters
|
| 1252 |
|
|
(%define 'fix-backspace
|
| 1253 |
|
|
(%lambda fix-backspace (strin)
|
| 1254 |
|
|
(let ((str (%make-array (%array-size strin) #\Newline)))
|
| 1255 |
|
|
(let ((size (%array-size strin)))
|
| 1256 |
|
|
(%define 'rec
|
| 1257 |
|
|
(%lambda fix-backspace-rec (i j)
|
| 1258 |
|
|
(%if (%num-eq? j size)
|
| 1259 |
|
|
(%if (%less-than? i j)
|
| 1260 |
|
|
(%progn
|
| 1261 |
|
|
(%array-set str i #\Newline)
|
| 1262 |
|
|
(rec (1+ i) j))
|
| 1263 |
|
|
str)
|
| 1264 |
|
|
(%if (%char-eq? (%array-get strin j) #\Backspace)
|
| 1265 |
|
|
(rec (%if (%num-eq? i 0) 0 (1- i)) (1+ j))
|
| 1266 |
|
|
(%progn
|
| 1267 |
|
|
(%array-set str i (%array-get strin j))
|
| 1268 |
|
|
(rec (1+ i) (1+ j)))))))
|
| 1269 |
|
|
(rec 0 0)))))
|
| 1270 |
|
|
|
| 1271 |
|
|
|
| 1272 |
|
|
|
| 1273 |
|
|
|
| 1274 |
|
|
;; Macro system
|
| 1275 |
|
|
;; Move to nth-lisp file, RSN
|
| 1276 |
|
|
|
| 1277 |
|
|
(%define 'macro-functions %nil)
|
| 1278 |
|
|
|
| 1279 |
|
|
;; defmacro
|
| 1280 |
|
|
(%define 'defmacro-fn (%lambda %defmacro (name fn)
|
| 1281 |
|
|
(%set! 'macro-functions
|
| 1282 |
|
|
(%cons (%cons name fn)
|
| 1283 |
|
|
macro-functions))))
|
| 1284 |
|
|
|
| 1285 |
|
|
(%define 'get-macro-fn (%lambda get-macro-fn (name)
|
| 1286 |
|
|
(%progn
|
| 1287 |
|
|
(%define 'rec
|
| 1288 |
|
|
(%lambda get-macro-fn-rec (name list)
|
| 1289 |
|
|
(%if list
|
| 1290 |
|
|
(%if (%eq? (%car (%car list)) name)
|
| 1291 |
|
|
(%cdr (%car list))
|
| 1292 |
|
|
(rec name (%cdr list)))
|
| 1293 |
|
|
%nil)))
|
| 1294 |
|
|
(rec name macro-functions))))
|
| 1295 |
|
|
|
| 1296 |
|
|
|
| 1297 |
|
|
;; Tree walker and expander
|
| 1298 |
|
|
|
| 1299 |
|
|
(%define 'fix-lambda-arguments
|
| 1300 |
|
|
(%lambda fix-lambda-arguments (args)
|
| 1301 |
|
|
(%progn
|
| 1302 |
|
|
(%define 'rec (%lambda fix-lambda-arguments-rec (args)
|
| 1303 |
|
|
(%if args
|
| 1304 |
|
|
(%if (%eq? '%. (%car args))
|
| 1305 |
|
|
(%car (%cdr args))
|
| 1306 |
|
|
(%cons (%car args) (rec (%cdr args))))
|
| 1307 |
|
|
%nil)))
|
| 1308 |
|
|
(%if (%num-eq? (%type args) +type-cons+)
|
| 1309 |
|
|
(rec args)
|
| 1310 |
|
|
args))))
|
| 1311 |
|
|
|
| 1312 |
|
|
(%define 'fix-pair
|
| 1313 |
|
|
(%lambda fix-pair (pair)
|
| 1314 |
|
|
(%if (is-list? pair)
|
| 1315 |
|
|
(%if (%num-eq? (length pair) 3)
|
| 1316 |
|
|
(%if (%eq? '%. (%car (%cdr pair)))
|
| 1317 |
|
|
(%%list (%car pair) (%car (%cdr (%cdr pair))))
|
| 1318 |
|
|
pair)
|
| 1319 |
|
|
pair)
|
| 1320 |
|
|
pair)))
|
| 1321 |
|
|
|
| 1322 |
|
|
(%define 'expand-macro
|
| 1323 |
|
|
(%lambda expand-macro (root)
|
| 1324 |
|
|
(%if (%num-eq? (%type root) +type-cons+)
|
| 1325 |
|
|
(let ((mfn (get-macro-fn (%car root))))
|
| 1326 |
|
|
(%if mfn
|
| 1327 |
|
|
(expand-macro (mfn root))
|
| 1328 |
|
|
root))
|
| 1329 |
|
|
root)))
|
| 1330 |
|
|
|
| 1331 |
|
|
(%define 'tree-walker
|
| 1332 |
|
|
(%lambda tree-walker (root)
|
| 1333 |
|
|
(%if (%num-eq? (%type root) +type-cons+)
|
| 1334 |
|
|
(%if (%eq? (%car root) '%quote)
|
| 1335 |
|
|
root
|
| 1336 |
|
|
(let ((root (expand-macro (fix-pair root))))
|
| 1337 |
|
|
(%if (%num-eq? (%type root) +type-cons+)
|
| 1338 |
|
|
(%if (%eq? (%car root) '%lambda)
|
| 1339 |
|
|
(%cons '%lambda
|
| 1340 |
|
|
(%cons (%car (%cdr root))
|
| 1341 |
|
|
(%cons (fix-lambda-arguments (%car (%cdr (%cdr root))))
|
| 1342 |
|
|
(map tree-walker (%cdr (%cdr (%cdr root)))))))
|
| 1343 |
|
|
(map tree-walker root))
|
| 1344 |
|
|
root)))
|
| 1345 |
|
|
root)))
|
| 1346 |
|
|
|
| 1347 |
|
|
;;; Move this to NTH-Lisp code base
|
| 1348 |
|
|
;;; !!!
|
| 1349 |
|
|
|
| 1350 |
|
|
;; Lambda macro
|
| 1351 |
|
|
(defmacro-fn 'lambda
|
| 1352 |
|
|
(%lambda 'lambda-macro (root)
|
| 1353 |
|
|
(list '%lambda
|
| 1354 |
|
|
'anonymous
|
| 1355 |
|
|
(%car (%cdr root))
|
| 1356 |
|
|
(%cons '%progn
|
| 1357 |
|
|
(%cdr (%cdr root))))))
|
| 1358 |
|
|
|
| 1359 |
|
|
(defmacro-fn 'named-lambda
|
| 1360 |
|
|
(%lambda 'named-lambda-macro (root)
|
| 1361 |
|
|
(list '%lambda
|
| 1362 |
|
|
(%car (%cdr root))
|
| 1363 |
|
|
(%car (%cdr (%cdr root)))
|
| 1364 |
|
|
(%cons '%progn
|
| 1365 |
|
|
(%cdr (%cdr (%cdr root)))))))
|
| 1366 |
|
|
|
| 1367 |
|
|
|
| 1368 |
|
|
(defmacro-fn 'progn
|
| 1369 |
|
|
(%lambda 'progn-macro (root)
|
| 1370 |
|
|
(%cons '%progn
|
| 1371 |
|
|
(%cdr root))))
|
| 1372 |
|
|
|
| 1373 |
|
|
(defmacro-fn 'quote
|
| 1374 |
|
|
(%lambda 'quote-macro (root)
|
| 1375 |
|
|
(%cons '%quote
|
| 1376 |
|
|
(%cdr root))))
|
| 1377 |
|
|
|
| 1378 |
|
|
(defmacro-fn 'let
|
| 1379 |
|
|
(%lambda 'let-macro (root)
|
| 1380 |
|
|
(list (%cons 'named-lambda
|
| 1381 |
|
|
(%cons 'let
|
| 1382 |
|
|
(%cons (list (%car (%car (%car (%cdr root)))))
|
| 1383 |
|
|
(%cdr (%cdr root)))))
|
| 1384 |
|
|
(%car (%cdr (%car (%car (%cdr root))))))))
|
| 1385 |
|
|
|
| 1386 |
|
|
(defmacro-fn 'define
|
| 1387 |
|
|
(%lambda 'define-macro (root)
|
| 1388 |
|
|
(list '%define
|
| 1389 |
|
|
(list '%quote (%car (%cdr root)))
|
| 1390 |
|
|
(%car (%cdr (%cdr root))))))
|
| 1391 |
|
|
(defmacro-fn 'setq!
|
| 1392 |
|
|
(%lambda 'setq!-macro (root)
|
| 1393 |
|
|
(list '%set!
|
| 1394 |
|
|
(list '%quote (%car (%cdr root)))
|
| 1395 |
|
|
(%car (%cdr (%cdr root))))))
|
| 1396 |
|
|
|
| 1397 |
|
|
(defmacro-fn 'cond
|
| 1398 |
|
|
(%lambda 'cond-macro (root)
|
| 1399 |
|
|
(%progn
|
| 1400 |
|
|
(%define 'rec (%lambda 'cond-macro-rec (lst)
|
| 1401 |
|
|
(%if lst
|
| 1402 |
|
|
(let ((pair (%car lst)))
|
| 1403 |
|
|
(list '%if
|
| 1404 |
|
|
(%car pair)
|
| 1405 |
|
|
(%car (%cdr pair))
|
| 1406 |
|
|
(rec (%cdr lst))))
|
| 1407 |
|
|
%nil)))
|
| 1408 |
|
|
(rec (%cdr root)))))
|
| 1409 |
|
|
|
| 1410 |
|
|
(defmacro-fn 'if
|
| 1411 |
|
|
(%lambda 'if-macro (root)
|
| 1412 |
|
|
(list '%if
|
| 1413 |
|
|
(%car (%cdr root))
|
| 1414 |
|
|
(%car (%cdr (%cdr root)))
|
| 1415 |
|
|
(%if (%num-eq? (length (%cdr root)) 2)
|
| 1416 |
|
|
%nil
|
| 1417 |
|
|
(%car (%cdr (%cdr (%cdr root))))))))
|
| 1418 |
|
|
|
| 1419 |
|
|
(defmacro-fn 'or
|
| 1420 |
|
|
(%lambda 'or-macro (root)
|
| 1421 |
|
|
(%progn
|
| 1422 |
|
|
(%define 'rec (%lambda or-macro-rec (args)
|
| 1423 |
|
|
(%if args
|
| 1424 |
|
|
(list (list '%lambda 'anonymous (list 'x)
|
| 1425 |
|
|
(list '%if
|
| 1426 |
|
|
'x 'x
|
| 1427 |
|
|
(rec (%cdr args))))
|
| 1428 |
|
|
(%car args))
|
| 1429 |
|
|
%nil)))
|
| 1430 |
|
|
(rec (%cdr root)))))
|
| 1431 |
|
|
|
| 1432 |
|
|
(defmacro-fn 'and
|
| 1433 |
|
|
(%lambda 'and-macro (root)
|
| 1434 |
|
|
(%progn
|
| 1435 |
|
|
(%define 'rec (%lambda and-macro-rec (args)
|
| 1436 |
|
|
(%if args
|
| 1437 |
|
|
(list '%if
|
| 1438 |
|
|
(%car args)
|
| 1439 |
|
|
(rec (%cdr args))
|
| 1440 |
|
|
(%car args))
|
| 1441 |
|
|
%t)))
|
| 1442 |
|
|
(rec (%cdr root)))))
|
| 1443 |
|
|
|
| 1444 |
|
|
;; Reduce
|
| 1445 |
|
|
(%define 'reduce (%lambda 'reduce (fn init list)
|
| 1446 |
|
|
(%if list
|
| 1447 |
|
|
(reduce fn (fn init (%car list)) (%cdr list))
|
| 1448 |
|
|
init)))
|
| 1449 |
|
|
|
| 1450 |
|
|
;; Make a function that calls reduce with the first argument as the
|
| 1451 |
|
|
;; init value and the rest of the arguments as the list.
|
| 1452 |
|
|
;; reducer takes a function that will be used during the reduce as
|
| 1453 |
|
|
;; the only input.
|
| 1454 |
|
|
(%define 'reducer (%lambda 'reduce (fn identity)
|
| 1455 |
|
|
(%lambda 'anonymous-reducer list
|
| 1456 |
|
|
(%if list
|
| 1457 |
|
|
(reduce fn (%if identity identity (%car list)) (%if identity list (%cdr list)))
|
| 1458 |
|
|
identity))))
|
| 1459 |
|
|
|
| 1460 |
|
|
(%define '+ (reducer %add 0))
|
| 1461 |
|
|
(%define '- (%lambda sub lst
|
| 1462 |
|
|
(%if (%num-eq? (length lst) 1)
|
| 1463 |
|
|
(%sub 0 (%car lst))
|
| 1464 |
|
|
(reduce %sub (%car lst) (%cdr lst)))))
|
| 1465 |
|
|
(%define '* (reducer %mul 1))
|
| 1466 |
|
|
(%define '/ %div)
|
| 1467 |
|
|
(%define 'mod %mod)
|
| 1468 |
|
|
|
| 1469 |
|
|
(%define '= %num-eq?)
|
| 1470 |
|
|
(%define '< %less-than?)
|
| 1471 |
|
|
(%define '> (%lambda 'greater-than? (a b)
|
| 1472 |
|
|
(%if (or2 (%num-eq? a b)
|
| 1473 |
|
|
(%less-than? a b))
|
| 1474 |
|
|
%nil
|
| 1475 |
|
|
%t)))
|
| 1476 |
|
|
|
| 1477 |
|
|
(%define 'car %car)
|
| 1478 |
|
|
(%define 'cdr %cdr)
|
| 1479 |
|
|
(%define 'cons %cons)
|
| 1480 |
|
|
(%define 'set! %set!)
|
| 1481 |
|
|
(%define 'set-car! %set-car!)
|
| 1482 |
|
|
(%define 'set-cdr! %set-cdr!)
|
| 1483 |
|
|
(%define 'make-array %make-array)
|
| 1484 |
|
|
(%define 'array-get %array-get)
|
| 1485 |
|
|
(%define 'array-size %array-size)
|
| 1486 |
|
|
|
| 1487 |
|
|
(defun append (li lu)
|
| 1488 |
|
|
(%if li
|
| 1489 |
|
|
(cons (car li) (append (cdr li) lu))
|
| 1490 |
|
|
lu))
|
| 1491 |
|
|
|
| 1492 |
|
|
(defun null? (dings)
|
| 1493 |
|
|
(%if (%eq? nil dings)
|
| 1494 |
|
|
%t
|
| 1495 |
|
|
%nil))
|
| 1496 |
|
|
|
| 1497 |
|
|
|
| 1498 |
|
|
|
| 1499 |
|
|
;;; !!! END
|
| 1500 |
|
|
|
| 1501 |
|
|
(%define
|
| 1502 |
|
|
'combine
|
| 1503 |
|
|
(%lambda
|
| 1504 |
|
|
combine (f g) ; produces combination of single-argument
|
| 1505 |
|
|
; functions f and g
|
| 1506 |
|
|
(%lambda combination (x) (f (g x)))))
|
| 1507 |
|
|
|
| 1508 |
|
|
(%define 'caar (combine car car))
|
| 1509 |
|
|
(%define 'cadr (combine car cdr))
|
| 1510 |
|
|
(%define 'cdar (combine cdr car))
|
| 1511 |
|
|
(%define 'cddr (combine cdr cdr))
|
| 1512 |
|
|
(%define 'cdddr (combine cddr cdr))
|
| 1513 |
|
|
(%define 'caddr (combine cadr cdr))
|
| 1514 |
|
|
(%define 'cadddr (combine caddr cdr))
|
| 1515 |
|
|
|
| 1516 |
|
|
(%define 'igorev-state-func-frame car)
|
| 1517 |
|
|
(%define 'igorev-state-condition cadr)
|
| 1518 |
|
|
(%define 'igorev-state-iterations caddr)
|
| 1519 |
|
|
|
| 1520 |
|
|
(%define 'igorev-func-frame-func car)
|
| 1521 |
|
|
(%define 'igorev-func-frame-env cadr)
|
| 1522 |
|
|
(%define 'igorev-func-frame-eval-frame caddr)
|
| 1523 |
|
|
(%define 'igorev-func-frame-parent cadddr)
|
| 1524 |
|
|
|
| 1525 |
|
|
(%define 'igorev-eval-frame-expr car)
|
| 1526 |
|
|
(%define 'igorev-eval-frame-arg cadr)
|
| 1527 |
|
|
(%define 'igorev-eval-frame-result caddr)
|
| 1528 |
|
|
(%define 'igorev-eval-frame-phase cadddr)
|
| 1529 |
|
|
(%define 'igorev-eval-frame-parent (combine caddr cddr))
|
| 1530 |
|
|
|
| 1531 |
|
|
(%define
|
| 1532 |
|
|
'igorev-state-huge-success?
|
| 1533 |
|
|
(%lambda
|
| 1534 |
|
|
igorev-state-huge-success? (state)
|
| 1535 |
|
|
(%eq? (igorev-state-condition state) nil)))
|
| 1536 |
|
|
|
| 1537 |
|
|
(%define
|
| 1538 |
|
|
'igorev-state-result
|
| 1539 |
|
|
(%lambda
|
| 1540 |
|
|
igorev-state-result (state)
|
| 1541 |
|
|
(igorev-eval-frame-result
|
| 1542 |
|
|
(igorev-func-frame-eval-frame
|
| 1543 |
|
|
(igorev-state-func-frame state)))))
|
| 1544 |
|
|
|
| 1545 |
|
|
(%define
|
| 1546 |
|
|
'igorev-state-expr
|
| 1547 |
|
|
(%lambda
|
| 1548 |
|
|
igorev-state-expr (state)
|
| 1549 |
|
|
(igorev-eval-frame-expr
|
| 1550 |
|
|
(igorev-func-frame-eval-frame
|
| 1551 |
|
|
(igorev-state-func-frame state)))))
|
| 1552 |
|
|
|
| 1553 |
|
|
(%define 'igorev-env-local-bindings car)
|
| 1554 |
|
|
|
| 1555 |
|
|
|
| 1556 |
|
|
(%define
|
| 1557 |
|
|
'function-name
|
| 1558 |
|
|
(%lambda
|
| 1559 |
|
|
function-name (f)
|
| 1560 |
|
|
(%car (%function-data f))))
|
| 1561 |
|
|
|
| 1562 |
|
|
(%define
|
| 1563 |
|
|
'function-param-list
|
| 1564 |
|
|
(%lambda
|
| 1565 |
|
|
function-param-list (f)
|
| 1566 |
|
|
(%cadr (%function-data f))))
|
| 1567 |
|
|
|
| 1568 |
|
|
(%define
|
| 1569 |
|
|
'function-expr
|
| 1570 |
|
|
(%lambda
|
| 1571 |
|
|
function-expr (f)
|
| 1572 |
|
|
(%caddr (%function-data f))))
|
| 1573 |
|
|
|
| 1574 |
|
|
(%define
|
| 1575 |
|
|
'function-env
|
| 1576 |
|
|
(%lambda
|
| 1577 |
|
|
function-end (f)
|
| 1578 |
|
|
(%cadddr (%function-data f))))
|
| 1579 |
|
|
|
| 1580 |
|
|
|
| 1581 |
|
|
|
| 1582 |
|
|
(%define
|
| 1583 |
|
|
'show-error-message
|
| 1584 |
|
|
(%lambda
|
| 1585 |
|
|
show-error-message (state)
|
| 1586 |
|
|
(%progn
|
| 1587 |
|
|
(display "Error: ")
|
| 1588 |
|
|
(print (igorev-state-condition state))
|
| 1589 |
|
|
(display " at ")
|
| 1590 |
|
|
(print (igorev-state-expr state))
|
| 1591 |
|
|
(newline)
|
| 1592 |
|
|
(display " in ")
|
| 1593 |
|
|
(print (igorev-func-frame-func (igorev-state-func-frame state)))
|
| 1594 |
|
|
(newline))))
|
| 1595 |
|
|
|
| 1596 |
|
|
|
| 1597 |
|
|
(%define
|
| 1598 |
|
|
'display
|
| 1599 |
|
|
(%lambda
|
| 1600 |
|
|
display (str)
|
| 1601 |
|
|
(%progn
|
| 1602 |
|
|
(%define
|
| 1603 |
|
|
'display-rec
|
| 1604 |
|
|
(%lambda
|
| 1605 |
|
|
display-rec (i)
|
| 1606 |
|
|
(%if (%less-than? i (%array-size str))
|
| 1607 |
|
|
(%progn
|
| 1608 |
|
|
(%put-char current-output (%array-get str i))
|
| 1609 |
|
|
(display-rec (1+ i)))
|
| 1610 |
|
|
nil)))
|
| 1611 |
|
|
(%if (is-string? str)
|
| 1612 |
|
|
(display-rec 0)
|
| 1613 |
|
|
(%error (list '%err-type-error str 'string))))))
|
| 1614 |
|
|
|
| 1615 |
|
|
(defun displine (str)
|
| 1616 |
|
|
(display str)
|
| 1617 |
|
|
(newline)
|
| 1618 |
|
|
nil)
|
| 1619 |
|
|
|
| 1620 |
|
|
|
| 1621 |
|
|
|
| 1622 |
|
|
;; (%define
|
| 1623 |
|
|
;; 'new-environment
|
| 1624 |
|
|
;; (%lambda
|
| 1625 |
|
|
;; new-environment (parent)
|
| 1626 |
|
|
;; (%cons %nil parent)))
|
| 1627 |
|
|
|
| 1628 |
|
|
(defun new-environment (parent)
|
| 1629 |
|
|
(%cons %nil parent))
|
| 1630 |
|
|
|
| 1631 |
|
|
(defun debug (state)
|
| 1632 |
|
|
(displine "Entering debugger")
|
| 1633 |
|
|
(let ((top-fframe (igorev-state-func-frame state)))
|
| 1634 |
|
|
(let ((top-eframe (igorev-func-frame-eval-frame top-fframe)))
|
| 1635 |
|
|
(dbg-show-fframe top-fframe)
|
| 1636 |
|
|
(dbg-show-eframe top-eframe)
|
| 1637 |
|
|
(dbg-repl state top-fframe '() top-eframe '()))))
|
| 1638 |
|
|
|
| 1639 |
|
|
(defun dbg-show-fframe (f)
|
| 1640 |
|
|
(displine "Current function frame:")
|
| 1641 |
|
|
(display " Function: ")
|
| 1642 |
|
|
(print (igorev-func-frame-func f))
|
| 1643 |
|
|
(newline)
|
| 1644 |
|
|
(display " Local bindings: ")
|
| 1645 |
|
|
(print (igorev-env-local-bindings
|
| 1646 |
|
|
(igorev-func-frame-env f)))
|
| 1647 |
|
|
(newline))
|
| 1648 |
|
|
|
| 1649 |
|
|
(defun dbg-show-eframe (e)
|
| 1650 |
|
|
(displine "Current eval frame:")
|
| 1651 |
|
|
(display " Expr: ")
|
| 1652 |
|
|
(print (igorev-eval-frame-expr e))
|
| 1653 |
|
|
(newline)
|
| 1654 |
|
|
(display " Arg: ")
|
| 1655 |
|
|
(print (igorev-eval-frame-arg e))
|
| 1656 |
|
|
(newline)
|
| 1657 |
|
|
(display " Result: ")
|
| 1658 |
|
|
(print (igorev-eval-frame-result e))
|
| 1659 |
|
|
(newline)
|
| 1660 |
|
|
(display " Phase: ")
|
| 1661 |
|
|
(print (igorev-eval-frame-phase e))
|
| 1662 |
|
|
(newline))
|
| 1663 |
|
|
|
| 1664 |
|
|
(defun dbg-show-fstack (frame descendants)
|
| 1665 |
|
|
(defun print-frame (f num is-current)
|
| 1666 |
|
|
(%if is-current (display "(*)") nil)
|
| 1667 |
|
|
(print num)
|
| 1668 |
|
|
(display ": ")
|
| 1669 |
|
|
(print (igorev-func-frame-func f))
|
| 1670 |
|
|
(newline))
|
| 1671 |
|
|
(defun print-frames (frames i)
|
| 1672 |
|
|
(%if frames
|
| 1673 |
|
|
(%progn
|
| 1674 |
|
|
(print-frame (car frames) i
|
| 1675 |
|
|
(%eq? (car frames) frame))
|
| 1676 |
|
|
(print-frames (cdr frames) (1+ i)))
|
| 1677 |
|
|
nil))
|
| 1678 |
|
|
(defun collect-frames (frame rest)
|
| 1679 |
|
|
(%if frame
|
| 1680 |
|
|
(collect-frames (igorev-func-frame-parent frame)
|
| 1681 |
|
|
(cons frame rest))
|
| 1682 |
|
|
rest))
|
| 1683 |
|
|
(print-frames (collect-frames frame descendants) 0))
|
| 1684 |
|
|
|
| 1685 |
|
|
(defun dbg-show-estack (frame descendants)
|
| 1686 |
|
|
(defun print-frame (f num is-current)
|
| 1687 |
|
|
(%if is-current (display "(*)") nil)
|
| 1688 |
|
|
(print num)
|
| 1689 |
|
|
(display ": ")
|
| 1690 |
|
|
(print (igorev-eval-frame-expr f))
|
| 1691 |
|
|
(newline))
|
| 1692 |
|
|
(defun print-frames (frames i)
|
| 1693 |
|
|
(%if frames
|
| 1694 |
|
|
(%progn
|
| 1695 |
|
|
(print-frame (car frames) i
|
| 1696 |
|
|
(%eq? (car frames) frame))
|
| 1697 |
|
|
(print-frames (cdr frames) (1+ i)))
|
| 1698 |
|
|
nil))
|
| 1699 |
|
|
(defun collect-frames (frame rest)
|
| 1700 |
|
|
(%if frame
|
| 1701 |
|
|
(collect-frames (igorev-eval-frame-parent frame)
|
| 1702 |
|
|
(cons frame rest))
|
| 1703 |
|
|
rest))
|
| 1704 |
|
|
(print-frames (collect-frames frame descendants) 0))
|
| 1705 |
|
|
|
| 1706 |
|
|
(defun dbg-show-env (fframe)
|
| 1707 |
|
|
(displine "(TODO)"))
|
| 1708 |
|
|
|
| 1709 |
|
|
(defun dbg-repl (state fframe fframes-below eframe eframes-below)
|
| 1710 |
|
|
(%define 'continue %t)
|
| 1711 |
|
|
(defun env ()
|
| 1712 |
|
|
(igorev-func-frame-env fframe))
|
| 1713 |
|
|
(defun deval (expr)
|
| 1714 |
|
|
(%eval expr (env)))
|
| 1715 |
|
|
(defun up ()
|
| 1716 |
|
|
(let ((parent (igorev-func-frame-parent fframe)))
|
| 1717 |
|
|
(%if parent
|
| 1718 |
|
|
(%progn
|
| 1719 |
|
|
(%set! 'fframes-below (cons fframe fframes-below))
|
| 1720 |
|
|
(%set! 'fframe parent)
|
| 1721 |
|
|
(%set! 'eframe (igorev-func-frame-eval-frame fframe))
|
| 1722 |
|
|
(%set! 'eframes-below '())
|
| 1723 |
|
|
(displine "Moved one function frame up"))
|
| 1724 |
|
|
(displine "Current function frame is an orphan"))))
|
| 1725 |
|
|
(defun down ()
|
| 1726 |
|
|
(%if fframes-below
|
| 1727 |
|
|
(%progn
|
| 1728 |
|
|
(%set! 'fframe (car fframes-below))
|
| 1729 |
|
|
(%set! 'fframes-below (cdr fframes-below))
|
| 1730 |
|
|
(%set! 'eframe (igorev-func-frame-eval-frame fframe))
|
| 1731 |
|
|
(%set! 'eframes-below '())
|
| 1732 |
|
|
(displine "Moved one function frame down"))
|
| 1733 |
|
|
(displine "Current function frame is childless")))
|
| 1734 |
|
|
(defun eup ()
|
| 1735 |
|
|
(let ((parent (igorev-eval-frame-parent eframe)))
|
| 1736 |
|
|
(%if parent
|
| 1737 |
|
|
(%progn
|
| 1738 |
|
|
(%set! 'eframes-below (cons eframe eframes-below))
|
| 1739 |
|
|
(%set! 'eframe parent)
|
| 1740 |
|
|
(displine "Moved one eval frame up"))
|
| 1741 |
|
|
(displine "Current eval frame is an orphan"))))
|
| 1742 |
|
|
(defun edown ()
|
| 1743 |
|
|
(%if eframes-below
|
| 1744 |
|
|
(%progn
|
| 1745 |
|
|
(%set! 'eframe (car eframes-below))
|
| 1746 |
|
|
(%set! 'eframes-below (cdr eframes-below))
|
| 1747 |
|
|
(displine "Moved one eval frame down"))
|
| 1748 |
|
|
(displine "Current eval frame is childless")))
|
| 1749 |
|
|
(defun show (what)
|
| 1750 |
|
|
(%if (%eq? what 'fframe)
|
| 1751 |
|
|
(dbg-show-fframe fframe)
|
| 1752 |
|
|
(%if (%eq? what 'eframe)
|
| 1753 |
|
|
(dbg-show-eframe eframe)
|
| 1754 |
|
|
(%if (%eq? what 'env)
|
| 1755 |
|
|
(dbg-show-env fframe)
|
| 1756 |
|
|
(%if (%eq? what 'fstack)
|
| 1757 |
|
|
(dbg-show-fstack fframe fframes-below)
|
| 1758 |
|
|
(%if (%eq? what 'estack)
|
| 1759 |
|
|
(dbg-show-estack eframe eframes-below)
|
| 1760 |
|
|
(displine "What what?")))))))
|
| 1761 |
|
|
(defun quit ()
|
| 1762 |
|
|
(%set! 'continue %nil))
|
| 1763 |
|
|
(defun read ()
|
| 1764 |
|
|
(display "dbg> ")
|
| 1765 |
|
|
(let ((expr (tree-walker
|
| 1766 |
|
|
(read-from-string (fix-backspace (read-line current-input))))))
|
| 1767 |
|
|
(newline)
|
| 1768 |
|
|
expr))
|
| 1769 |
|
|
(defun eval/print (expr)
|
| 1770 |
|
|
(let ((state (%eval-partial
|
| 1771 |
|
|
(%make-eval-state expr
|
| 1772 |
|
|
(new-environment (%current-environment)))
|
| 1773 |
|
|
0)))
|
| 1774 |
|
|
(%if (igorev-state-huge-success? state)
|
| 1775 |
|
|
(%progn
|
| 1776 |
|
|
(display "Result: ")
|
| 1777 |
|
|
(print (igorev-state-result state))
|
| 1778 |
|
|
(newline))
|
| 1779 |
|
|
(show-error-message state))))
|
| 1780 |
|
|
|
| 1781 |
|
|
(eval/print (read))
|
| 1782 |
|
|
(%if continue
|
| 1783 |
|
|
(dbg-repl state fframe fframes-below eframe eframes-below)
|
| 1784 |
|
|
(displine "Exiting debugger")))
|
| 1785 |
|
|
|
| 1786 |
|
|
|
| 1787 |
|
|
|
| 1788 |
|
|
(defun try (expr)
|
| 1789 |
|
|
(let ((state (%eval-partial
|
| 1790 |
|
|
(%make-eval-state (tree-walker expr)
|
| 1791 |
|
|
(%current-environment))
|
| 1792 |
|
|
0)))
|
| 1793 |
|
|
(%if (igorev-state-huge-success? state)
|
| 1794 |
|
|
(list 'success (igorev-state-result state))
|
| 1795 |
|
|
(list 'interrupt (cdr (igorev-state-condition state)) state))))
|
| 1796 |
|
|
|
| 1797 |
|
|
(defun catch-fn (handlers expr)
|
| 1798 |
|
|
(defun find-handler (condition handlers)
|
| 1799 |
|
|
(%if handlers
|
| 1800 |
|
|
(%if ((caar handlers) condition)
|
| 1801 |
|
|
(cdar handlers)
|
| 1802 |
|
|
(find-handler condition (cdr handlers)))
|
| 1803 |
|
|
nil))
|
| 1804 |
|
|
(let ((result (try expr)))
|
| 1805 |
|
|
(%if (%eq? (car result) 'success)
|
| 1806 |
|
|
(cadr result)
|
| 1807 |
|
|
(let ((condition (cadr result)))
|
| 1808 |
|
|
(let ((handler (find-handler condition handlers)))
|
| 1809 |
|
|
(%if handler
|
| 1810 |
|
|
(handler condition)
|
| 1811 |
|
|
(%error condition)))))))
|
| 1812 |
|
|
|
| 1813 |
|
|
(defmacro-fn
|
| 1814 |
|
|
'catch
|
| 1815 |
|
|
(%lambda
|
| 1816 |
|
|
catch-macro (root)
|
| 1817 |
|
|
(let ((cond-var (cadr root)))
|
| 1818 |
|
|
(let ((handlers (caddr root)))
|
| 1819 |
|
|
(let ((body (cdddr root)))
|
| 1820 |
|
|
(list 'catch-fn
|
| 1821 |
|
|
(cons
|
| 1822 |
|
|
'list
|
| 1823 |
|
|
(map (%lambda
|
| 1824 |
|
|
catch-macro-create-handler-function (handler)
|
| 1825 |
|
|
(list 'cons
|
| 1826 |
|
|
(list '%lambda 'catch-handler-predicate (list cond-var)
|
| 1827 |
|
|
(car handler))
|
| 1828 |
|
|
(list '%lambda 'catch-handler-function (list cond-var)
|
| 1829 |
|
|
(cadr handler))))
|
| 1830 |
|
|
handlers))
|
| 1831 |
|
|
(list '%quote (cons '%progn body))))))))
|
| 1832 |
|
|
|
| 1833 |
|
|
(defun condition-type (condition)
|
| 1834 |
|
|
(%if (is-list? condition)
|
| 1835 |
|
|
(car condition)
|
| 1836 |
|
|
condition))
|
| 1837 |
|
|
|
| 1838 |
|
|
|
| 1839 |
|
|
|
| 1840 |
|
|
(%define '*igorrepl-continue* %t)
|
| 1841 |
|
|
(%define
|
| 1842 |
|
|
'quit
|
| 1843 |
|
|
(%lambda
|
| 1844 |
|
|
quit () ; make it all go away
|
| 1845 |
|
|
(%set! '*igorrepl-continue* nil)))
|
| 1846 |
|
|
|
| 1847 |
|
|
;; REPL
|
| 1848 |
|
|
(%define 'igorrepl (%lambda igorrepl (n env)
|
| 1849 |
|
|
(%progn
|
| 1850 |
|
|
(display "IGORrepl: ")
|
| 1851 |
|
|
(let ((state (%make-eval-state
|
| 1852 |
|
|
(tree-walker
|
| 1853 |
|
|
(read-from-string (fix-backspace (read-line current-input))))
|
| 1854 |
|
|
env)))
|
| 1855 |
|
|
(newline)
|
| 1856 |
|
|
(let ((state (%eval-partial state 0)))
|
| 1857 |
|
|
(let ((cond (%car (%cdr state))))
|
| 1858 |
|
|
(newline)
|
| 1859 |
|
|
(%if (igorev-state-huge-success? state)
|
| 1860 |
|
|
(%progn
|
| 1861 |
|
|
(display "Result: ")
|
| 1862 |
|
|
(print (igorev-state-result state)))
|
| 1863 |
|
|
(%progn
|
| 1864 |
|
|
(show-error-message state)
|
| 1865 |
|
|
(debug state)))
|
| 1866 |
|
|
(newline)
|
| 1867 |
|
|
(%if *igorrepl-continue*
|
| 1868 |
|
|
(%if (%num-eq? n 1)
|
| 1869 |
|
|
%t
|
| 1870 |
|
|
(igorrepl (%if (%num-eq? n 0) 0 (1- n)) env))
|
| 1871 |
|
|
nil)))))))
|
| 1872 |
|
|
|
| 1873 |
|
|
|
| 1874 |
|
|
|
| 1875 |
|
|
;;(intern-symbols %symbol-table)
|
| 1876 |
|
|
|
| 1877 |
|
|
(display "boot program $Rev: 1441 $")
|
| 1878 |
|
|
(newline)
|
| 1879 |
|
|
|
| 1880 |
|
|
(%define
|
| 1881 |
|
|
'looptyloop
|
| 1882 |
|
|
(%lambda
|
| 1883 |
|
|
looptyloop ()
|
| 1884 |
|
|
(let ((state (%make-eval-state '(igorrepl 0 (new-environment (%current-environment)))
|
| 1885 |
|
|
(%current-environment))))
|
| 1886 |
|
|
(let ((new-state (%eval-partial state 0)))
|
| 1887 |
|
|
(%if (igorev-state-huge-success? new-state)
|
| 1888 |
|
|
(%progn
|
| 1889 |
|
|
(display "Happy Happy Joy Joy")
|
| 1890 |
|
|
(newline))
|
| 1891 |
|
|
(%progn
|
| 1892 |
|
|
(newline)
|
| 1893 |
|
|
(display "ERROR IN TOP-LEVEL REPL")
|
| 1894 |
|
|
(newline)
|
| 1895 |
|
|
(show-error-message new-state)
|
| 1896 |
|
|
(looptyloop)))))))
|
| 1897 |
|
|
(looptyloop)
|
| 1898 |
|
|
))
|
| 1899 |
|
|
|
