1 USING: accessors assocs combinators html.parser
2 html.parser.utils io kernel math math.order namespaces sequences
3 strings unicode.categories ;
4 IN: html.parser.printer
7 TUPLE: text-printer < html-printer ;
8 TUPLE: src-printer < html-printer ;
9 TUPLE: html-prettyprinter < html-printer ;
11 HOOK: print-text-tag html-printer ( tag -- )
12 HOOK: print-comment-tag html-printer ( tag -- )
13 HOOK: print-dtd-tag html-printer ( tag -- )
14 HOOK: print-opening-tag html-printer ( tag -- )
15 HOOK: print-closing-tag html-printer ( tag -- )
17 ERROR: unknown-tag-error tag ;
19 : print-tag ( tag -- )
21 { [ dup name>> text = ] [ print-text-tag ] }
22 { [ dup name>> comment = ] [ print-comment-tag ] }
23 { [ dup name>> dtd = ] [ print-dtd-tag ] }
24 { [ dup [ name>> string? ] [ closing?>> ] bi and ]
25 [ print-closing-tag ] }
26 { [ dup name>> string? ]
27 [ print-opening-tag ] }
31 : print-tags ( vector -- ) [ print-tag ] each ;
33 : html-text. ( vector -- )
34 T{ text-printer } html-printer [ print-tags ] with-variable ;
36 : html-src. ( vector -- )
37 T{ src-printer } html-printer [ print-tags ] with-variable ;
39 M: text-printer print-opening-tag
40 name>> "br" = [ nl ] when ;
42 M: text-printer print-closing-tag
43 name>> "p" = [ nl ] when ;
45 M: html-printer print-text-tag ( tag -- )
48 M: html-printer print-comment-tag ( tag -- )
49 "<!--" write text>> write "-->" write ;
51 M: html-printer print-dtd-tag ( tag -- )
52 "<!" write text>> write ">" write ;
54 : print-attributes ( hashtable -- )
55 [ [ bl write "=" write ] [ ?quote write ] bi* ] assoc-each ;
57 M: src-printer print-opening-tag ( tag -- )
60 [ attributes>> dup assoc-empty? [ drop ] [ print-attributes ] if ] bi
63 M: src-printer print-closing-tag ( tag -- )
72 : prettyprint-html ( vector -- )
74 T{ html-prettyprinter } html-printer set
75 V{ } clone tagstack set
82 tab-width get #indentations get 0 max * CHAR: \s <repetition> ;
84 M: html-prettyprinter print-opening-tag ( tag -- )
86 [ tabs write "<" write write ">\n" write ]
87 ! These tags usually don't have any closing tag associated with them.
88 [ { "br" "img" } member? [ #indentations inc ] unless ] bi ;
90 M: html-prettyprinter print-closing-tag ( tag -- )
91 [ tabs write "</" write name>> write ">\n" write ]
92 ! These tags usually don't have any closing tag associated with them.
93 [ { "br" "img" } member? [ #indentations dec ] unless ] bi ;
95 M: html-prettyprinter print-text-tag ( tag -- )
96 text>> [ blank? ] trim [ tabs write write "\n" write ] unless-empty ;