problem #142
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by
renggli
filipenanclarez
asked this question in
Q&A
problem
#142
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My original but after this comand: the value of doc variable is: Look the Way this is happening? How can'i workaround this? Ps.: My string already in UTF-8 |
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Answered by
renggli
Apr 28, 2022
Replies: 4 comments 4 replies
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final document = XmlDocument.parse(input, entityMapping: XmlDefaultEntityMapping.html5()); |
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Answer selected by
renggli
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Thank you... |
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Hi... I have another document with this notation of especial entities on the body:
Any way to handle this? |
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4 replies
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What do you mean by "handle this"? Also could you please provide the input as text, so that I can copy-and-paste it into a test to reproduce? |
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When i parse the content, and then back this with Expected:
Actual result:
I think if the parser ignore xml coments like: then the problem can fixed. Here the original xml: <?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html [
<!ENTITY D "—">
<!ENTITY o "‘">
<!ENTITY c "’">
<!ENTITY O "“">
<!ENTITY C "”">
]>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Alice's Adventures in Wonderland by Lewis Carroll</title>
<link rel="stylesheet" type="text/css" href="style.css"/>
<link rel="stylesheet" type="application/vnd.adobe-page-template+xml" href="page-template.xpgt"/>
</head>
<body>
<div class="title_box">
<div class="chapnum">Chapter V</div>
<div class="chaptitle">Advice from a Caterpillar</div>
<hr/>
</div>
<p><img class="il" style="max-width:363px;width:13em;" src="images/alice15a.gif" alt="Big Alice in Rabbit's house"/>
The Caterpillar and Alice looked at each other for some time in
silence: at last the Caterpillar took the hookah out of its
mouth, and addressed her in a languid, sleepy voice.
</p>
<p>
&O;Who are <i>you</i>?&C; said the Caterpillar.
</p>
<p>
This was not an encouraging opening for a conversation. Alice
replied, rather shyly, &O;I&D;I hardly know, sir, just at present&D;
at least I know who I <i>was</i> when I got up this morning, but I think
I must have been changed several times since then.&C;
</p>
<p>
&O;What do you mean by that?&C; said the Caterpillar sternly.
&O;Explain yourself!&C;
</p>
<p>
&O;I can't explain <i>myself</i>, I'm afraid, sir&C; said Alice, &O;because
I'm not myself, you see.&C;
</p>
<p>
&O;I don't see,&C; said the Caterpillar.
</p>
<p>
&O;I'm afraid I can't put it more clearly,&C; Alice replied very
politely, &O;for I can't understand it myself to begin with; and
being so many different sizes in a day is very confusing.&C;
</p>
<p>
&O;It isn't,&C; said the Caterpillar.
</p>
<p>
&O;Well, perhaps you haven't found it so yet,&C; said Alice; &O;but
when you have to turn into a chrysalis&D;you will some day, you
know&D;and then after that into a butterfly, I should think you'll
feel it a little queer, won't you?&C;
</p>
<p>
&O;Not a bit,&C; said the Caterpillar.
</p>
<p>
&O;Well, perhaps <i>your</i> feelings may be different,&C; said Alice;
&O;all I know is, it would feel very queer to <i>me</i>.&C;
</p>
<p>
&O;You!&C; said the Caterpillar contemptuously. &O;Who are You?&C;
</p>
<p>
Which brought them back again to the beginning of the
conversation. Alice felt a little irritated at the Caterpillar's
making such <i>very</i> short remarks, and she drew herself up and said,
very gravely, &O;I think, you ought to tell me who <i>you</i> are, first.&C;
</p>
<p>
&O;Why?&C; said the Caterpillar.
</p>
<p>
Here was another puzzling question; and as Alice could not
think of any good reason, and as the Caterpillar seemed to be in
a <i>very</i> unpleasant state of mind, she turned away.
</p>
<p>
&O;Come back!&C; the Caterpillar called after her. &O;I've something
important to say!&C;
</p>
<p>
This sounded promising, certainly: Alice turned and came back
again.
</p>
<p>
&O;Keep your temper,&C; said the Caterpillar.
</p>
<p>
&O;Is that all?&C; said Alice, swallowing down her anger as well as
she could.
</p>
<p>
&O;No,&C; said the Caterpillar.
</p>
<p>
Alice thought she might as well wait, as she had nothing else
to do, and perhaps after all it might tell her something worth
hearing. For some minutes it puffed away without speaking, but
at last it unfolded its arms, took the hookah out of its mouth
again, and said, &O;So you think you're changed, do you?&C;
</p>
<p>
&O;I'm afraid I am, sir,&C; said Alice; &O;I can't remember things as
I used&D;and I don't keep the same size for ten minutes together!&C;
</p>
<p>
&O;Can't remember <i>what</i> things?&C; said the Caterpillar.
</p>
<p>
&O;Well, I've tried to say &o;How Doth The Little Busy Bee,&c; but it
all came different!&C; Alice replied in a very melancholy voice.
</p>
<p>
&O;Repeat, &o;You Are Old, Father William,&c;&C; said the Caterpillar.
</p>
<p>
Alice folded her hands, and began:&D;
</p>
<pre class="poem">
<div class="ibc"><img class="wideimg" style="max-width:640px" src="images/alice16a.gif"/></div>
&O;You are old, Father William,&C; the young man said,
&O;And your hair has become very white;
And yet you incessantly stand on your head&D;
Do you think, at your age, it is right?&C;
&O;In my youth,&C; Father William replied to his son,
&O;I feared it might injure the brain;
But, now that I'm perfectly sure I have none,
Why, I do it again and again.&C;
<div class="ibc"><img class="wideimg" style="max-width:640px" src="images/alice17a.gif"/></div>
&O;You are old,&C; said the youth, &O;as I mentioned before,
And have grown most uncommonly fat;
Yet you turned a back-somersault in at the door&D;
Pray, what is the reason of that?&C;
&O;In my youth,&C; said the sage, as he shook his grey locks,
&O;I kept all my limbs very supple
By the use of this ointment&D;one shilling the box&D;
Allow me to sell you a couple?&C;
<div class="ibc"><img class="wideimg" style="max-width:640px" src="images/alice18a.gif"/></div>
&O;You are old,&C; said the youth, &O;and your jaws are too weak
For anything tougher than suet;
Yet you finished the goose, with the bones and the beak&D;
Pray how did you manage to do it?&C;
&O;In my youth,&C; said his father, &O;I took to the law,
And argued each case with my wife;
And the muscular strength, which it gave to my jaw,
Has lasted the rest of my life.&C;
<div class="ibc"><img class="wideimg" style="max-width:640px" src="images/alice19a.gif"/></div>
&O;You are old,&C; said the youth, &O;one would hardly suppose
That your eye was as steady as ever;
Yet you balanced an eel on the end of your nose&D;
What made you so awfully clever?&C;
&O;I have answered three questions, and that is enough,&C;
Said his father; &O;don't give yourself airs!
Do you think I can listen all day to such stuff?
Be off, or I'll kick you down stairs!&C;
</pre>
<p>
&O;That is not said right,&C; said the Caterpillar.
</p>
<p>
&O;Not <i>quite</i> right, I'm afraid,&C; said Alice, timidly; &O;some of the
words have got altered.&C;
</p>
<p>
&O;It is wrong from beginning to end,&C; said the Caterpillar
decidedly, and there was silence for some minutes.
</p>
<p>
The Caterpillar was the first to speak.
</p>
<p>
&O;What size do you want to be?&C; it asked.
</p>
<p>
&O;Oh, I'm not particular as to size,&C; Alice hastily replied;
&O;only one doesn't like changing so often, you know.&C;
</p>
<p>
&O;I <i>don't</i> know,&C; said the Caterpillar.
</p>
<p>
Alice said nothing: she had never been so much contradicted in
her life before, and she felt that she was losing her temper.
</p>
<p>
&O;Are you content now?&C; said the Caterpillar.
</p>
<p>
&O;Well, I should like to be a <i>little</i> larger, sir, if you
wouldn't mind,&C; said Alice: &O;three inches is such a wretched
height to be.&C;
</p>
<p>
&O;It is a very good height indeed!&C; said the Caterpillar
angrily, rearing itself upright as it spoke (it was exactly three
inches high).
</p>
<p>
&O;But I'm not used to it!&C; pleaded poor Alice in a piteous tone.
And she thought of herself, &O;I wish the creatures wouldn't be so
easily offended!&C;
</p>
<p>
&O;You'll get used to it in time,&C; said the Caterpillar; and it
put the hookah into its mouth and began smoking again.
</p>
<p>
This time Alice waited patiently until it chose to speak again.
In a minute or two the Caterpillar took the hookah out of its
mouth and yawned once or twice, and shook itself. Then it got
down off the mushroom, and crawled away in the grass, merely
remarking as it went, &O;One side will make you grow taller, and
the other side will make you grow shorter.&C;
</p>
<p>
&O;One side of <i>what</i>? The other side of <i>what</i>?&C; thought Alice to
herself.
</p>
<p>
&O;Of the mushroom,&C; said the Caterpillar, just as if she had
asked it aloud; and in another moment it was out of sight.
</p>
<p>
Alice remained looking thoughtfully at the mushroom for a
minute, trying to make out which were the two sides of it; and as
it was perfectly round, she found this a very difficult question.
However, at last she stretched her arms round it as far as they
would go, and broke off a bit of the edge with each hand.
</p>
<p>
&O;And now which is which?&C; she said to herself, and nibbled a
little of the right-hand bit to try the effect: the next moment
she felt a violent blow underneath her chin: it had struck her
foot!
</p>
<p>
She was a good deal frightened by this very sudden change, but
she felt that there was no time to be lost, as she was shrinking
rapidly; so she set to work at once to eat some of the other bit.
Her chin was pressed so closely against her foot, that there was
hardly room to open her mouth; but she did it at last, and
managed to swallow a morsel of the lefthand bit.
</p>
<pre>
* * * * * * *
* * * * * *
* * * * * * *
</pre>
<p>
&O;Come, my head's free at last!&C; said Alice in a tone of
delight, which changed into alarm in another moment, when she
found that her shoulders were nowhere to be found: all she could
see, when she looked down, was an immense length of neck, which
seemed to rise like a stalk out of a sea of green leaves that lay
far below her.
</p>
<p>
&O;What <i>can</i> all that green stuff be?&C; said Alice. &O;And where
<i>have</i> my shoulders got to? And oh, my poor hands, how is it I
can't see you?&C; She was moving them about as she spoke, but no
result seemed to follow, except a little shaking among the
distant green leaves.
</p>
<p>
As there seemed to be no chance of getting her hands up to her
head, she tried to get her head down to <i>them</i>, and was delighted
to find that her neck would bend about easily in any direction,
like a serpent. She had just succeeded in curving it down into a
graceful zigzag, and was going to dive in among the leaves, which
she found to be nothing but the tops of the trees under which she
had been wandering, when a sharp hiss made her draw back in a
hurry: a large pigeon had flown into her face, and was beating
her violently with its wings.
</p>
<p>
&O;Serpent!&C; screamed the Pigeon.
</p>
<p>
&O;I'm <i>not</i> a serpent!&C; said Alice indignantly. &O;Let me alone!&C;
</p>
<p>
&O;Serpent, I say again!&C; repeated the Pigeon, but in a more
subdued tone, and added with a kind of sob, &O;I've tried every
way, and nothing seems to suit them!&C;
</p>
<p>
&O;I haven't the least idea what you're talking about,&C; said
Alice.
</p>
<p>
&O;I've tried the roots of trees, and I've tried banks, and I've
tried hedges,&C; the Pigeon went on, without attending to her; &O;but
those serpents! There's no pleasing them!&C;
</p>
<p>
Alice was more and more puzzled, but she thought there was no
use in saying anything more till the Pigeon had finished.
</p>
<p>
&O;As if it wasn't trouble enough hatching the eggs,&C; said the
Pigeon; &O;but I must be on the look-out for serpents night and
day! Why, I haven't had a wink of sleep these three weeks!&C;
</p>
<p>
&O;I'm very sorry you've been annoyed,&C; said Alice, who was
beginning to see its meaning.
</p>
<p>
&O;And just as I'd taken the highest tree in the wood,&C; continued
the Pigeon, raising its voice to a shriek, &O;and just as I was
thinking I should be free of them at last, they must needs come
wriggling down from the sky! Ugh, Serpent!&C;
</p>
<p>
&O;But I'm Not a serpent, I tell you!&C; said Alice. &O;I'm a&D;I'm
a&D;&C;
</p>
<p>
&O;Well! What are you?&C; said the Pigeon. &O;I can see you're
trying to invent something!&C;
</p>
<p>
&O;I&D;I'm a little girl,&C; said Alice, rather doubtfully, as she
remembered the number of changes she had gone through that day.
</p>
<p>
&O;A likely story indeed!&C; said the Pigeon in a tone of the
deepest contempt. &O;I've seen a good many little girls in my
time, but never <i>one</i> with such a neck as that! No, no! You're a
serpent; and there's no use denying it. I suppose you'll be
telling me next that you never tasted an egg!&C;
</p>
<p>
&O;I <i>have</i> tasted eggs, certainly,&C; said Alice, who was a very
truthful child; &O;but little girls eat eggs quite as much as
serpents do, you know.&C;
</p>
<p>
&O;I don't believe it,&C; said the Pigeon; &O;but if they do, why
then they're a kind of serpent, that's all I can say.&C;
</p>
<p>
This was such a new idea to Alice, that she was quite silent
for a minute or two, which gave the Pigeon the opportunity of
adding, &O;You're looking for eggs, I know <i>that</i> well enough; and
what does it matter to me whether you're a little girl or a
serpent?&C;
</p>
<p>
&O;It matters a good deal to <i>me</i>,&C; said Alice hastily; &O;but I'm
not looking for eggs, as it happens; and if I was, I shouldn't
want <i>yours</i>: I don't like them raw.&C;
</p>
<p>
&O;Well, be off, then!&C; said the Pigeon in a sulky tone, as it
settled down again into its nest. Alice crouched down among the
trees as well as she could, for her neck kept getting entangled
among the branches, and every now and then she had to stop and
untwist it. After a while she remembered that she still held the
pieces of mushroom in her hands, and she set to work very
carefully, nibbling first at one and then at the other, and
growing sometimes taller and sometimes shorter, until she had
succeeded in bringing herself down to her usual height.
</p>
<p>
It was so long since she had been anything near the right size,
that it felt quite strange at first; but she got used to it in a
few minutes, and began talking to herself, as usual. &O;Come,
there's half my plan done now! How puzzling all these changes
are! I'm never sure what I'm going to be, from one minute to
another! However, I've got back to my right size: the next
thing is, to get into that beautiful garden&D;how Is that to be
done, I wonder?&C; As she said this, she came suddenly upon an
open place, with a little house in it about four feet high.
&O;Whoever lives there,&C; thought Alice, &O;it'll never do to come
upon them <i>this</i> size: why, I should frighten them out of their
wits!&C; So she began nibbling at the righthand bit again, and did
not venture to go near the house till she had brought herself
down to nine inches high.
</p>
</body>
</html> |
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DTDs are not applied or enforced, as the documentation writes: https://github.com/renggli/dart-xml#limitations. There was some progress made on the parsing part recently, but the rest is still far away (contributions welcome). As a quick workaround I recommend that you manually create your own custom entity mapping: final entityMapping = XmlDefaultEntityMapping({
...XmlDefaultEntityMapping.html5().entities,
'O': '\u201C',
'C': '\u201D',
// ... and all other special entities
});
final document = XmlDocument.parse(alice, entityMapping: entityMapping); |
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Thank you. I'll try it. |
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I got a workaround with the following code: var strDoc = doc.toString();
RegExp regExp = new RegExp(
r'<!ENTITY\s(.*?)\s\"(.*?)\">',
multiLine: true,
);
for (var element in regExp.allMatches(strDoc).toList()) {
var from = element.group(1);
var to = element.group(2);
strDoc = strDoc.replaceAll('&$from;', '$to');
} |
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is not an XML character entity. You can configure the XML parser to use HTML5 entities instead of the standard XML ones, which should correctly decode@nbsp;to a whitespace: