/usr/share/gauche-0.9/site/lib/h2s/parse.scm is in gauche-gtk 0.6~pre1+git20121223-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 | (define-module h2s.parse
(export
parse-headers
)
(use h2s.objects)
(use h2s.gtk-types)
(use h2s.utils)
(use h2s.track) ;for the inpupt-file param!
; (use macros.aif) ;fixme!
(use gauche.parameter)
(use file.util)
(use srfi-13)
(use srfi-11)
(use srfi-2)
)
(select-module h2s.parse)
(define-syntax aif (syntax-rules () [(_ . args) (if-let1 . args)]))
(define debug #f)
;; we canonize the C definition into: type****** var-name
(define (grok-vardef type name)
(if debug
(if (and (pair? type)
(not (eq? (car type) 'const)))
;; this is only possible from function arguments: search for acons: const XXX *YYYY
(logformat-color 87 "grok-vardef: type ~a\n" type)
))
(let*-values (((ptrs var) (let1 brk (string-skip name #\*)
(values (string-take name brk)
(string-drop name brk))))
((typesig) (if (pair? type)
#`",(car type)-,(cdr type),|ptrs|" ;mmc: ???
#`",|type|,|ptrs|")))
;;
(if debug (logformat "grok-vardef: type: ~a\n" (string->symbol typesig)))
(make <gtk-var>
:type (find-type-or-create (string->symbol typesig))
:c-name var)))
(define (grok-arraydef type name dim)
(receive (ptrs var)
(let1 brk (string-skip name #\*)
(values (string-take name brk) (string-drop name brk)))
(let* ((elt-typesig (if (pair? type)
#`",(car type)-,(cdr type),|ptrs|"
#`",|type|,|ptrs|"))
(typesig #`",elt-typesig[,dim]")
(type (find-type-or-create (string->symbol typesig)))
(elt-type (find-type-or-create (string->symbol elt-typesig))))
(set! (body-of type)
(make <gtk-array> :size dim :element-type elt-type))
(make <gtk-var> :type type :c-name var))))
;;================================================================
;; PASS 1 - PARSER
;;
;; mmc: Q does the parse phase create the tree, the relation between types?
(define (parse-headers dir hlist)
(for-each (lambda (hdr) (parse-header (build-path dir hdr))) hlist))
;; |
;; |
;; V
(define (parse-header filename)
(parameterize ((input-file filename))
(if debug (report #`"*** parsing ,filename"))
(with-input-from-file filename parse-body)))
;; |
;; |
;; V
(define (parse-body)
;; mmc: why is (parse-body) not outside of rxmatch-case ?
(let step ((line (read-line)))
(rxmatch-case line
(test eof-object?)
(#/^struct (_G[dt]k\w+)/ (#f name) (parse-struct name) (parse-body))
(#/^struct (_Pango\w+)/ (#f name) (parse-struct name) (parse-body))
(#/^struct (_Glade\w+)/ (#f name) (parse-struct name) (parse-body))
(#/^struct (_GnomeCanvas\w+)/ (#f name) (parse-struct name) (parse-body))
(#/^struct (_Eog\w+)/ (#f name) (parse-struct name) (parse-body))
;; only conveniently named are recognized. Others might confuse us!!!
;; Also, note that it must start at bol.
;; and no way to combine typedef struct _a{....} a; !!! Must be separate.
(#/^typedef enum/ () (parse-enum) (parse-body))
;; mmc:
;; typedef GtkTextBuffer GtksourceviewTextBuffer;
(#/^typedef\s+(\w+)\s+(\w+)\s*\;$/ (#f old new)
(unless (string-suffix? "Class" old) ;new?
(copy-type! old new))
(parse-body))
;; fixme: "const GSlist" functions !
(#/^(?:const\s+)?([\w\*_]+)\s+((\*+)\s*)?((g[dt]k|pango|glade|gnome_canvas|eog)_[\w_]+)\s*\((.+)$/ (#f ret #f ptr fn #f rest)
;; fixme: const -> i could recycle the memory!
(parse-function (if ptr #`",|ret|,|ptr|" ret) fn rest)
;; fixme: (parse-body)
(step (read-line)))
;; typedef struct _GdkDrawable GdkPixmap;
;; typedefa struct _a a; is ignored!!
(#/^typedef\s+struct\s+(\w+)\s+(\w+)\s*\;$/ (#f struct-name type-name)
(unless (string=? struct-name (string-append "_" type-name))
(if debug (logformat-color 172 "new alias for the struct ~a: ~a\n" struct-name type-name))
(copy-type! (string-drop struct-name 1) type-name) ;; fixme: why did I comment it out?
;; later!
'(let1 old-type (find-type (string-drop struct-name 1))
(set! (body-of
(find-type-or-create (string->symbol type-name)))
;; struct !!
(body-of old-type))))
(parse-body))
;; workaround for /usr/include/gtkextra-2.0/gtkextra/gtksheet.h
;; GtkWidget *
;; gtk_sheet_new_browser (guint rows, guint columns, const gchar *title);
;;
(#/^(?:const\s+)?([\w\*_]+)\s*(\s+(\*+))?$/ (all ret pointers)
;; append the second line and see:
(if debug (logformat "another line read to form a parsing unit\n"))
(step (string-append line " " (read-line))));; (string-drop-right line 1)
;; fixme: this doesn't skip over multi-line `fat';
(#/^.*$/ (all)
;;else
(if debug (logformat "non-matched line: ~a\n" all))
(parse-body)))
))
(define (copy-type! old new)
;; Shiro made this hack: (& i try to extend it)
;; GdkWindow
;;(set! (body-of (find-type n)) (body-of gdkdrawable))
;; body is important for: `get-slot-boxer'
(if debug (logformat-color 196 "copy-type!: ~a -> ~a\n" old new))
;(sys-exit 0)
(if (find-type new #t)
(logformat-color (color* yellow) "copy-type!: ~a has already been defined\n" new)
;(logformat-color '(5 5 1) "copy-type!: ~a ~a\n" old new) ;yellow '(1 1 1)gunichar
(and-let* ((c-name old) ;; (string-drop name 1) drop preceding '_'
(scmname (mixed-case-name->hyphenated-name c-name)))
;((logformat-color (color* green) "scm name of the old type: ~a\n" scmname)))
(cond
;; gtk doesn't distinguish it. i can/do for now.
;; so, i don't want to rely on the Glib type system, hmmmmm.
;; SCM_MAKE_GTK_SOURCE_MARKER -> SCM_GOBJECT_BOX -> ScmObj Scm_MakeGObject(void *obj) -> g_object_get_qdata
;; i would need, that SCM_MAKE_GTK_SOURCE_MARKER added a tag to tell more:
;; or
;; ignore the distinction: then the source_marker functions should `just' accept the more general type.
;; that is: everywhere i use the stricter type, i should output the general.
((find-struct (string->symbol #`"<,|scmname|>"))
=> (lambda (old-struct)
;;
(if #t
;; version 2
(let* ((old-type (find-type (string->symbol (string-append old "*")) #t))
(new-type-name (string->symbol (string-append new "*")))
)
(aif new-type (find-type new-type-name)
(begin
;; fixme:
(slot-set! new-type 'body
(body-of old-type)))
;(set! new-type
(make <gtk-type-alias> :c-name
:alias old-type))
;; string-append
;(logformat-color (color* green) "\tit is a struct ~a\t type ~a found\n" #`"<,|scmname|>"
; (if old-type "" "NOT"))
;; (slot-set! new-type 'alias old-type)
;(logformat "...so we created a <gtk-type-alias> c-named: ~a\n" (c-name-of new-type))
1;new-type
)
;; version 1
(begin
;; fixme: base types: uint & etc
;(logformat-color (color* green) "\tit is a struct ~a\n" #`"<,|scmname|>")
;; i could even make it inherit.
(make-struct (string-append "_" new) (fields-of old-struct))))))
;;
((find-type (string->symbol old) #t)
=>
(lambda (old-type)
;body (body-of self)
;(symbol? body)
(set! (body-of
(find-type-or-create (string->symbol new)))
(body-of old-type))
;(make <gtk-type> :c-name (car entry) :body (cadr entry))
;(make <gtk-type> :c-name (string->symbol new))
))
;;
(else
(logformat-color 'red "PROBLEM: copy-type! from ~a but that type is unknown now!" old)))
(let1 old-type (find-type (string->symbol old) #t)
(if old-type
(set! (body-of
(find-type-or-create (string->symbol new)))
(body-of old-type))))
(let1 old-type (find-type (string->symbol (string-append old "*")))
(when old-type
(make <gtk-type> :c-name (string->symbol (string-append new "*"))
:body (body-of old-type))
(logformat-color 196 "(typedef) copied the body into: from ~a\n" old-type))))))
;; collect the slots and the call .... `make-struct'
;; what are the slots:
;;
;;
;; ( ( ) symbol ..... )
;;
;;
(define (parse-struct name)
(define (err-eof) (errorf "EOF while parsing struct ~s" name))
(define (remove-gseal line) ;; an ad-hoc stuff to remove GSEAL macro.
(regexp-replace #/GSEAL\s*\(([^\)]+)\)/ line "\\1"))
(define (parse-struct-body)
(let loop ((line (read-line))
(fields '()))
(rxmatch-case (remove-gseal line)
(test eof-object? (err-eof))
;; empty
(#/^\s*$/ () (loop (read-line) fields))
;; G style wants them on separate line!?
(#/^\{/ () (loop (read-line) fields))
(#/^\}/ () (make-struct name (reverse fields))) ;mmc: exit here!
(test has-comment? (skip-comment line (cut loop <> fields) err-eof))
;; a_b_*c* a*b*c_ef[abcde_dl] : 3;
;(#/^\s+([\w\*_]+)\s+([\w\*_]+)(\[([\w_]+)\])?\s*(:\s*\d+\s*)?\;/
;; a_b*** **a_b [a_b] : 23:
(#/^\s+([\w_]+\**)\s+(\**[\w_]+)(\[([\w_]+)\])?\s*(?::\s*\d+\s*)?\;/
(match type var array bits) ;
;; #f
;; mmc: i see it (#f type var array bits) bug?
(if (and (not array)
bits)
(logformat-color 123 "mmc: bits: ~a\n" bits))
(if array
(begin
(logformat-color 197 "mmc: found C array: ~a\n\tline was: ~a\n" array line)
(loop (read-line) (cons (grok-arraydef type var bits) fields)))
(loop (read-line) (cons (grok-vardef type var) fields))))
;; the original:
(#/^\s+([\w\*_]+)\s+([\w\*_]+)(\[([\w_]+)\])?\s*(:\s*\d+\s*)?\;/
(#f type var #f array)
(logformat-color 123 "mmc: your regexp is wrong!\n~a\n" line)
(sys-exit 1))
;; function pointer - `ignore!' But the function cannot be used then! ... err. here we are parsing Struct!
(#/^\s+[\w\*_]+\s+\**\([\w\*_]+\)(.*)/ (#f rest)
(let loop2 ((line rest))
(rxmatch-case line
(test eof-object? (err-eof))
(#/\)\;/ () (loop (read-line) fields))
(else (loop2 (read-line))))))
(#/^\s+([\w\*_]+)\s+([\w\*_]+)\s*,(.*)$/ (#f type var rest)
;; something like: int x,y,
;; z,w;
(let loop2 ((rest rest)
(fields (cons (grok-vardef type var) fields)))
(rxmatch-case rest
(#/\s*([\w\*_]+)\s*\;/ (#f var)
(loop (read-line) (cons (grok-vardef type var) fields)))
(#/\s*([\w\*_]+)\s*,(.*)$/ (#f var rest)
(loop2 rest (cons (grok-vardef type var) fields)))
(else (warn "~s in ~a" line name) (loop (read-line) fields)))))
(else (warn "~s in ~a" line name) (loop (read-line) fields)))))
(define (skip-struct name)
(if debug (logformat-color 200 "Skipping a class/interface struct ~a.\n" name))
(let loop ((line (read-line)))
(rxmatch-case line
(test eof-object? (err-eof))
(#/^\{/ () (loop (read-line)))
(#/^\}/ () '())
(else (loop (read-line))))))
(if debug (logformat-color 190 "parsing struct ~a\n" name))
;; we are not interested in these !!! What do they do? keep gobject `methods' only?
(if (string-suffix? "Class" name)
(skip-struct name)
(parse-struct-body)))
;; mmc: we have already thrown the name ? No the C enum is enum {....} _Name_;
(define (parse-enum)
(define (err-eof) (error "EOF while parsing enum"))
(let loop ((line (read-line))
(enums '()))
(rxmatch-case line
(test eof-object? (err-eof))
(#/^\{/ () (loop (read-line) enums))
(#/^\}\s*([\w_]+)/ (#f name) (make-enum name (reverse enums))) ; ----->
;; empty line:
(#/^\s*$/ () (loop (read-line) enums))
;; preprocessor directive:
(#/^\s*#\s*\w+/ () (loop (read-line) enums))
;;
(test has-comment? (skip-comment line (cut loop <> enums) err-eof)) ; what if?: new_value, /* boring comment*/
(#/\s+([\w_]+),?/ (#f enum)
(loop (read-line) (cons enum enums)))
(#/\s+([\w_]+)\s+=/ (#f enum) ; name = ...whatever... we are not interested in that detail!
(loop (read-line) (cons enum enums)))
(else (warn "~s in enum" line) (loop (read-line) enums))
)))
;; return-type name-including-* (pointers!) rest is rest-of-line, i.e. the arguments, after the "("
(define (parse-function ret name rest)
(define (err-eof) (errorf "EOF while parsing function ~s" name))
(define (grok-arg argstr) ; "int a"
(rxmatch-case (string-trim-both argstr) ; remove spaces at extremes
(#/^const\s+(.+)$/ (#f rest)
(let1 r (grok-arg rest) (acons 'const (car r) (cdr r)))) ;(acons 1 2 3) -> ((1 . 2) . 3)
(#/^([\w\*_]+)\s+([\w\*_]+)$/ (#f type name) (cons type name))
;; function: , int (f)(int*, char*) !!!
(#/^([\w\*_]+)\s+\(([\w\*_]+)\)/ (#f type name) (acons 'fn type name))
(#/^void$/ () '())
(#/^...$/ () (cons "VARARG" "..."))
(else (warn "can't grok arg ~a in ~a" argstr name)
'("UNKNOWN" . "UNKNOWN"))))
(define (finish-function ret name rargs)
(make-function name
(find-type-or-create (string->symbol ret))
(reverse (map (lambda (arg)
(let1 a (grok-arg arg)
(if debug (logformat "arg: ~a\n" a))
(if (null? a)
a
(grok-vardef (car a) (cdr a))))) ; ???
rargs))))
(if debug (logformat-color 245 "parsing functions ~a\n" name))
(let loop ((line rest) ;First line
(args '()))
(rxmatch-case line
(test eof-object? (err-eof))
;;empty line
(#/^\s*$/ () (loop (read-line) args))
;;
(test has-comment? (skip-comment line (cut loop <> args) err-eof)) ;Is this the reason we cannot invoke loop after rxmatch-case?
;;
(#/\s*([^,]+),(.*)/ (#f arg rest) ; get XXX XXX, <--rest--->
(loop rest (cons arg args)))
;;
(#/\s*(.+)\).*\;/ (#f arg)
(finish-function ret name (cons arg args)))
(else
(warn "~s in ~a" line name)
(loop (read-line) args)))))
(define (has-comment? line) (string-scan line "/*"))
(define (skip-comment line cont error-eof)
(receive (prev next) (string-scan line "/*" 'both)
(cond
((string-scan next "*/" 'after)
=> (lambda (n) (cont #`",|prev| ,|n|")))
(else
(let loop ((line (read-line)))
(rxmatch-case line
(test eof-object? (error-eof))
(#/\*\/(.*)/ (#f rest)
(cont #`",|prev| ,|rest|"))
(else (loop (read-line)))))))))
(provide "h2s/parse")
|