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Convert HTML Special Characters

 
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Garrett
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Joined: 04 Oct 2001
Posts: 2149
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PostPosted: Sat Jan 01, 2005 7:55 pm    Post subject: Convert HTML Special Characters Reply with quote

The following code snippet can take data that contains html special
characters and convert them to thier normal character representations.

The variable %%Text holds the data. It could be a page of html source
code if you like. When it's done converting, the output is back in %%Text
and you can then assign %%Text back to a list.

You could load and use the snippet Something like this...

Code:
%%Text = @text(1)
GOSUB HTMLTOASCIILIST
LIST ASSIGN,1,%%Text


Right now, I use this code after I've stripped all the html tags from a
page so I can view the contents of the page in an edit window.

The first REPEAT loops in the code take care of the ascii labeled style
of html special characters. The second set further below that after
the loading of the list "19" is where the code takes care of the special
characters that are named characters.

Code:
:HTMLTOASCIILIST
  %%AsciiC = 32
  REPEAT
    %B = @greater(@pos("&#"%%AsciiC";",%%Text),0)
    IF %B
      REPEAT
        %B = @pos("&#"%%AsciiC";",%%Text)
        IF @equal(%B,1)
          %C =
        ELSE
          %C = @substr(%%Text,1,@fsub(%B,1))
        END
        %D = @substr(%%Text,@sum(%B,@len("&#"%%AsciiC";")),@len(%%Text))
        %%Text = %C@chr(%%AsciiC)%D
      UNTIL @equal(@pos("&#"%%AsciiC";",%%Text),0)
    END
    %%AsciiC = @succ(%%AsciiC)
  UNTIL @greater(%%AsciiC,255)
  LIST CREATE,19
  LIST LOADTEXT,19
  "»|187
  "«|171
  "›|155
  "‹|139
  "©|169
  "®|174
  "™|153
  " |32
  ""|34
  "&|38
  "<|60
  ">|62
  "Á|193
  "á|225
  "À|192
  "à|224
  "Â|194
  "â|226
  "Ä|196
  "ä|228
  "Ã|195
  "ã|227
  "Å|197
  "å|229
  "&Aelig;|198
  "æ|230
  "Ç|199
  "ç|231
  "&Eth;|208
  "ð|240
  "É|201
  "é|233
  "È|200
  "è|232
  "Ê|202
  "ê|234
  "Ë|203
  "ë|235
  "Í|205
  "í|237
  "Ì|204
  "ì|236
  "Î|206
  "î|238
  "Ï|207
  "ï|239
  "Ñ|209
  "ñ|241
  "Ó|211
  "ó|243
  "Ò|210
  "ò|242
  "Ô|212
  "ô|244
  "Ö|214
  "ö|246
  "Õ|213
  "õ|245
  "Ø| 216
  "ø|248
  "ß|233
  "&Thorn;|222
  "þ|254
  "Ú|218
  "ú|250
  "Ù|217
  "ù|249
  "Û|219
  "û|215
  "Ü|220
  "ü|252
  "Ý|221
  "ý|253
  "ÿ|255
  LIST SEEK,19,0
  REPEAT
    PARSE "%%CharH;%%AsciiH",@item(19)
    %B = @greater(@pos(%%CharH,%%Text),0)
    IF %B
      REPEAT
        %B = @pos(%%CharH,%%Text)
        IF @equal(%B,1)
          %C =
        ELSE
          %C = @substr(%%Text,1,@fsub(%B,1))
        END
        %D = @substr(%%Text,@sum(%B,@len(%%CharH)),@len(%%Text))
        %%Text = %C@chr(%%AsciiH)%D
      UNTIL @equal(@pos(%%CharH,%%Text),0)
    END
    %N = @next(19)
  UNTIL @null(@item(19))@not(@ok())
  LIST CLOSE,19
  EXIT

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vtol
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Joined: 05 Feb 2004
Posts: 622
Location: Indiana

PostPosted: Sun Jan 02, 2005 5:46 am    Post subject: Reply with quote

nice
I'd like to try it after you add the first part (the HTML tag stripping part).
Since I never attempted to strip tags, I allways just FILE/SAVE AS/text.txt
I guess this will make it look fancier in the LIST box.

Do you know of a way to send formated text to a LIST box?
Like where the data would come from within the VDS EXE, I been using List loadtext,1 but its so hard to organize(format) text properly.

GL
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Garrett
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Joined: 04 Oct 2001
Posts: 2149
Location: A House

PostPosted: Sun Jan 02, 2005 7:44 pm    Post subject: Reply with quote

On page 7 in the source code section of the VDSWorld.com site you'll find
some html stripping code.

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FreezingFire
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Joined: 23 Jun 2002
Posts: 3508

PostPosted: Sun Jan 02, 2005 11:11 pm    Post subject: Reply with quote

I think that the String.dll can strip HTML code also.
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