! Copyright (C) 2008 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
-USING: accessors assocs combinators combinators.short-circuit
-fry html.parser http.client io kernel locals math math.statistics
-sequences sets splitting unicode.case unicode.categories urls
-urls.encoding shuffle ;
+USING: accessors assocs assocs.extras combinators
+combinators.short-circuit html.parser http.client io kernel math
+math.statistics sequences sets splitting unicode urls
+urls.encoding ;
IN: html.parser.analyzer
: scrape-html ( url -- response vector )
http-get parse-html ;
: attribute ( tag string -- obj/f )
- swap attributes>> [ at ] [ drop f ] if* ;
+ swap attributes>> at ;
: attribute* ( tag string -- obj ? )
- swap attributes>> [ at* ] [ drop f f ] if* ;
+ swap attributes>> at* ;
-: attribute? ( tag string -- obj )
- swap attributes>> [ key? ] [ drop f ] if* ;
+: attribute? ( tag string -- ? )
+ swap attributes>> key? ;
: find-all ( seq quot -- alist )
- [ <enum> >alist ] [ '[ second @ ] ] bi* filter ; inline
+ [ <enumerated> >alist ] [ '[ second @ ] ] bi* filter ; inline
: loopn-index ( n quot -- )
- [ iota ] [ '[ @ not ] ] bi* find 2drop ; inline
+ [ <iota> ] [ '[ @ not ] ] bi* find 2drop ; inline
: loopn ( n quot -- )
[ drop ] prepose loopn-index ; inline
+: html-class? ( tag string -- ? )
+ swap "class" attribute [ blank? ] split-when member? ;
+
+: html-id? ( tag string -- ? )
+ swap "id" attribute = ;
+
ERROR: undefined-find-nth m n seq quot ;
: check-trivial-find ( m n seq quot -- m n seq quot )
>lower '[ name>> _ = ] find ; inline
: stack-find ( seq quot: ( elt -- 1/0/-1 ) -- i/f )
- map cum-sum [ 0 = ] find drop ; inline
+ map cum-sum 0 swap index ; inline
: tag-classifier ( string -- quot )
>lower
] map ;
: find-by-id ( vector id -- vector' elt/f )
- '[ "id" attribute _ = ] find ;
-
+ '[ _ html-id? ] find ;
+
: find-by-class ( vector id -- vector' elt/f )
- '[ "class" attribute _ = ] find ;
+ '[ _ html-class? ] find ;
: find-by-name ( vector string -- vector elt/f )
>lower '[ name>> _ = ] find ;
: find-by-id-between ( vector string -- vector' )
- dupd
- '[ "id" attribute _ = ] find find-between* ;
-
+ '[ _ html-id? ] dupd find find-between* ;
+
: find-by-class-between ( vector string -- vector' )
- dupd
- '[ "class" attribute _ = ] find find-between* ;
-
+ '[ _ html-class? ] dupd find find-between* ;
+
: find-by-class-id-between ( vector class id -- vector' )
- [
- '[
- [ "class" attribute _ = ]
- [ "id" attribute _ = ] bi and
- ] find
- ] [
- 2drop find-between*
- ] 3bi ;
+ '[
+ [ _ html-class? ] [ _ html-id? ] bi and
+ ] dupd find find-between* ;
-: find-by-attribute-key ( vector key -- vector' elt/? )
- >lower
- [ attributes>> at _ = ] filter sift ;
+: find-by-attribute-key ( vector key -- vector' )
+ >lower '[ _ attribute? ] filter sift ;
: find-by-attribute-key-value ( vector value key -- vector' )
- >lower
- [ attributes>> at over = ] with filter nip sift ;
+ >lower swap '[ _ attribute _ = ] filter sift ;
: find-first-attribute-key-value ( vector value key -- i/f tag/f )
- >lower
- [ attributes>> at over = ] with find rot drop ;
-
-: tag-link ( tag -- link/f ) "href" attribute ;
+ >lower swap '[ _ attribute _ = ] find ;
: find-links ( vector -- vector' )
[ { [ name>> "a" = ] [ "href" attribute ] } 1&& ]
find-between-all ;
: find-images ( vector -- vector' )
- [
- {
- [ name>> "img" = ]
- [ "src" attribute ]
- } 1&&
- ] find-all
- values [ "src" attribute ] map ;
+ [ { [ name>> "img" = ] [ "src" attribute ] } 1&& ] filter sift
+ [ "src" attribute ] map ;
: find-by-text ( seq quot -- tag )
[ dup name>> text = ] prepose find drop ; inline
[ { [ name>> = ] [ closing?>> not ] } 1&& ] with find-all ;
: href-contains? ( str tag -- ? )
- "href" attribute* [ subseq? ] [ 2drop f ] if ;
+ "href" attribute* [ swap subseq-of? ] [ 2drop f ] if ;
: find-hrefs ( vector -- vector' )
- find-links
- [ [ { [ name>> "a" = ] [ "href" attribute? ] } 1&& ] filter ] map sift
- [ [ "href" attribute ] map ] map concat [ >url ] map ;
+ [ { [ name>> "a" = ] [ "href" attribute? ] } 1&& ] filter sift
+ [ "href" attribute >url ] map ;
: find-frame-links ( vector -- vector' )
- [ name>> "frame" = ] find-between-all
- [ [ "src" attribute ] map sift ] map concat sift
- [ >url ] map ;
+ [ { [ name>> "frame" = ] [ "src" attribute? ] } 1&& ] filter sift
+ [ "src" attribute >url ] map ;
+
+: find-script-links ( vector -- vector' )
+ [ { [ name>> "script" = ] [ "src" attribute? ] } 1&& ] filter sift
+ [ "src" attribute >url ] map ;
: find-all-links ( vector -- vector' )
- [ find-hrefs ] [ find-frame-links ] bi union ;
+ [ find-hrefs ] [ find-frame-links ] [ find-script-links ] tri union union ;
: find-forms ( vector -- vector' )
"form" over find-opening-tags-by-name
[ "type" attribute "hidden" = ] filter ;
: input. ( tag -- )
- dup name>> print
- attributes>>
+ [ name>> print ] [ attributes>> ] bi
[ bl bl bl bl [ write "=" write ] [ write bl ] bi* nl ] assoc-each ;
: form. ( vector -- )
- [ closing?>> not ] filter
+ [ closing?>> ] reject
[
{
{ [ dup name>> "form" = ]
: query>assoc* ( str -- hash )
"?" split1 nip query>assoc ;
-
-: html-class? ( tag string -- ? )
- swap "class" attribute = ;
-
-: html-id? ( tag string -- ? )
- swap "id" attribute = ;
: opening-tag? ( tag -- ? )
closing?>> not ;
: link. ( vector -- )
[ "href" attribute write nl ]
[ clickable>> [ bl bl text>> print ] each nl ] bi ;
+
+: find-classes-named ( seq name -- seq' )
+ dupd
+ '[ attributes>> "class" of _ = ] find-all
+ [ find-between ] kv-with { } assoc>map ;
+
+: find-classes-named* ( seq name -- seq' )
+ dupd
+ '[ attributes>> "class" of _ = ] find-all
+ [ find-between* ] kv-with { } assoc>map ;
projects / factor.git / blobdiff