I have this part of script in my website:
this.isAuto=!1!==this.o.auto&null!==this.o.autoMode.match(/^loop|bounce$j/); w3 validation
I am getting validation error at auto&null, n is red
here is the message:
Warning Line 205, Column 409: cannot generate system identifier for
general entity "null"
…h,b||{});this.isAuto=!1!==this.o.auto&null!==this.o.autoMode.match(/^loop|boun…
✉
An entity reference was found in the document, but there is no
reference by that name defined. Often this is caused by misspelling
the reference name, unencoded ampersands, or by leaving off the
trailing semicolon (;). The most common cause of this error is
unencoded ampersands in URLs as described by the WDG in "Ampersands in
URLs".
Entity references start with an ampersand (&) and end with a semicolon
(;). If you want to use a literal ampersand in your document you must
encode it as "&" (even inside URLs!). Be careful to end entity
references with a semicolon or your entity reference may get
interpreted in connection with the following text. Also keep in mind
that named entity references are case-sensitive; &Aelig; and æ
are different characters.
If this error appears in some markup generated by PHP's session
handling code, this article has explanations and solutions to your
problem.
Note that in most documents, errors related to entity references will
trigger up to 5 separate messages from the Validator. Usually these
will all disappear when the original problem is fixed.
I hope some one can help with that
Thanks
Related
I want to change a section of code that has thousands of lines. The section I want to change exists on many lines and I don't want to do it one by one. When I right click on FormQQ_ATL and say replace, it gives "A definition for the symbol FormQQ_ATL could not be located error VS2019".image:
I guess I can't do that because it is a string. Is there way to solve this situation?
R7RS-small says that all identifiers must be terminated by a delimiter, but at the same time it defines pretty elaborate rules for what can be in an identifier. So, which one is it?
Is an identifier supposed to start with an initial character and then continue until a delimiter, or does it start with an initial character and continue following the syntax defined in 7.1.1.
Here are a couple of obvious cases. Are these valid identifiers?
a#a
b,b
c'c
d[d]
If they are not supposed to be valid, what is the purpose of saying that an identifier must be terminated by a delimiter?
|..ident..| are delimiters for symbols in R7RS, to allow any character that you cannot insert in an old style symbol (| is the delimiter).
However, in R6RS the "official" grammar was incorrect, as it did not allow to define symbols such that 1+, which led all implementations define their own rules to overcome this illness of the official grammar.
Unless you need to read the source code of a given implementation and see how it defines the symbols, you should not care too much about these rules and use classical symbols.
In the section 7.1.1 you find the backus-naur form that defines the lexical structure of R7RS identifiers but I doubt the implementations follow it.
I quote from here
As with identifiers, different implementations of Scheme use slightly
different rules, but it is always the case that a sequence of
characters that contains no special characters and begins with a
character that cannot begin a number is taken to be a symbol
In other words, an implementation will use a function like read-atom and after that it will classify an atom by backtracking with read-number and if number? fails it will be a symbol.
Was attempting to search our directory based on an attribute whose value is a DN. However, our user RDNs are of the form CN=Surname, GivenName, which requires that the comma be quoted in the full DN. But given an attribute like manager whose value is the DN of another user, I was unable to search for all users having specific manager. I tried (manager=CN=Surname\, GivenName,CN=users,DC=mydomain,DC=com), but got a syntax error "Bad search filter". I tried various options for quoting the DN, but all either gave me a syntax error or failed to match any objects. What am I doing wrong?
(Note that if I were looking for user objects directly, I could search for simply (CN=Surname, GivenName), with no quoting required, but I was searching for users having a specific manager. The comma-containing attribute value only becomes a problem when part of a Distinguished Name.)
The problem is that quoting the comma in the Common Name is not for the benefit of the filter parser, but for the benefit of the DN parser; the attribute value passed to that by the filter has to literally contain the backslash character. Unfortunately, the backslash is also (differently) special in LDAP filters, thus the syntax errors.
The solution is simple, but it isn't as obvious as doubling the backslash; backslash in LDAP filters works like % in URIs, so you have to use a literal backslash followed by the 2-digit hexadecimal code point for a backslash:
(manager=CN=Surname\5c, Givenname,OU=org,DC=mydomain,DC=com)
It turns out there's an example of this specific use case at the very bottom of https://docs.oracle.com/cd/E19424-01/820-4811/gdxpo/index.html#6ng8i269q.
I'm looking over Section 3.4 of RFC 3986 trying to understand what constitutes a valid URI query parameter key, but I'm not seeing a clear answer.
The reason I'm asking is because I'm writing a Ruby class that composes a URI with query parameters. When a new parameter is added I want to validate the key. Based on experience, it seems like the key will be invalid if it requires any escaping.
I should also say that I plan to validate the key. I'm not sure how to go about validating this data either, but I do know that in all cases I should escape this value.
Advice is appreciated. Advice in the context of how validation might already be possible through say a Ruby Gem would also be a plus.
I could well be wrong, but that spec seems to say that anything following '?' or '#' is valid as long. I wonder if you should be looking more at the spec for 'application/x-www-form-urlencoded' (ie. the key/value pairs we're all used to)?
http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.1
This is the default content type. Forms submitted with this content
type must be encoded as follows:
Control names and values are escaped. Space characters are replaced by +', and then reserved characters are escaped as described in [RFC1738], section 2.2: Non-alphanumeric characters are replaced by %HH', a percent sign and two hexadecimal digits representing the ASCII code of the character. Line breaks are represented as "CR LF" pairs (i.e., `%0D%0A').
The control names/values are listed in the order they appear in the document. The name is separated from the value by =' and name/value pairs are separated from each other by &'.
I don't believe key=value is part of the RFC, it's a convention that has emerged. Wikipedia suggests this is an 'W3C recommendation'.
Seems like some good stuff to be found searching on the application/x-www-form-urlencoded content type.
http://www.w3.org/TR/REC-html40/interact/forms.html#form-data-set
I have an RSS feed and one of the links has an 'ó' in it which causes validation issue. Is it not possible to include these characters in the URI? Is it bad practice to have a character like this in the URI anyway?
Feed us UTF-8.
Unicode characters are legal in URI's. Now you can also use them in domain names. So you have error in your validation mechanism.