Network Working GroupD. Crocker, Editor
Request for Comments: 5234Brandenburg InternetWorking
Obsoletes: single charts top 100 cannaP. Overell
STD: 68THUS plc.
Category: Standards TrackJanuary 2008

die meisten single frauen in deutschland Augmented BNF for Syntax Specifications: ABNF

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wo leben die meisten singles in deutschland This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the “Internet Official Protocol Standards” (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.single charts top 100 aktuell

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urlaub als single in deutschland Internet technical specifications often need to define a formal syntax. Over the years, a modified version of Backus-Naur Form (BNF), called Augmented BNF (ABNF), has been popular among many Internet specifications. The current specification documents ABNF. It balances compactness and simplicity with reasonable representational power. The differences between standard BNF and ABNF involve naming rules, repetition, alternatives, order- independence, and value ranges. This specification also supplies additional rule definitions and encoding for a core lexical analyzer of the type common to several Internet specifications.single charts top 100 anhören


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american dating in dubai Internet technical specifications often need to define a formal syntax and are free to employ whatever notation their authors deem useful. Over the years, a modified version of Backus-Naur Form (BNF), called Augmented BNF (ABNF), has been popular among many Internet specifications. It balances compactness and simplicity with reasonable representational power. In the early days of the Arpanet, each specification contained its own definition of ABNF. This included the email specifications, [RFC733] and then [RFC822], which came to be the common citations for defining ABNF. The current document separates those definitions to permit selective reference. Predictably, it also provides some modifications and enhancements.german singles top 100 canna

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singlebörsen kostenlos hannover The name of a rule is simply the name itself, that is, a sequence of characters, beginning with an alphabetic character, and followed by a combination of alphabetics, digits, and hyphens (dashes).american singles in okinawa

NOTE:
 
Rule names are case insensitive.

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die erfolgreichsten singles aller zeiten in deutschland Unlike original BNF, angle brackets ("<", ">") are not required. However, angle brackets may be used around a rule name whenever their presence facilitates in discerning the use of a rule name. This is typically restricted to rule name references in free-form prose, or to distinguish partial rules that combine into a string not separated by white space, such as shown in the discussion about repetition, below.german top 100 single charts april 2013

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die erfolgreichste single der 80er in deutschland A rule is defined by the following sequence:jüdische singles in deutschland

      name =  elements crlf 

american singles in japan where <name> is the name of the rule, <elements> is one or more rule names or terminal specifications, and <crlf> is the end-of-line indicator (carriage return followed by line feed). The equal sign separates the name from the definition of the rule. The elements form a sequence of one or more rule names and/or value definitions, combined according to the various operators defined in this document, such as alternative and repetition.japanische singles in deutschland

russische frauen in deutschland For visual ease, rule definitions are left aligned. When a rule requires multiple lines, the continuation lines are indented. The left alignment and indentation are relative to the first lines of the ABNF rules and need not match the left margin of the document.free online dating sites in karachi

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russische frauen in deutschland gesucht Rules resolve into a string of terminal values, sometimes called characters. In ABNF, a character is merely a non-negative integer. In certain contexts, a specific mapping (encoding) of values into a character set (such as ASCII) will be specified.dating sim spiele kostenlos

russische frauen in deutschland suchen mann Terminals are specified by one or more numeric characters, with the base interpretation of those characters indicated explicitly. The following bases are currently defined:

      b           =  binary

      d           =  decimal

      x           =  hexadecimal 

russische frauen in deutschland heiraten Hence:

      CR          =  %d13

      CR          =  %x0D

russische frauen in deutschland suchen respectively specify the decimal and hexadecimal representation of [US-ASCII] for carriage return.

russische frauen in deutschland daten A concatenated string of such values is specified compactly, using a period (".") to indicate a separation of characters within that value. Hence:

      CRLF        =  %d13.10 

russische frauen in deutschland treffen ABNF permits the specification of literal text strings directly, enclosed in quotation marks. Hence:

      command     =  "command string" 

www.partnersuche für senioren.de Literal text strings are interpreted as a concatenated set of printable characters.dating simulation game for boy

NOTE:
 
ABNF strings are case insensitive and the character set for these strings is US-ASCII.

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      rulename = "abc" 

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      rulename = "aBc" 

kurzurlaub für singles in deutschland will match "abc", "Abc", "aBc", "abC", "ABc", "aBC", "AbC", and "ABC".

  • To specify a rule that is case sensitive, specify the characters individually.

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      rulename    =  %d97 %d98 %d99

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      rulename    =  %d97.98.99

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partnerbörse senioren youtube External representations of terminal value characters will vary according to constraints in the storage or transmission environment. Hence, the same ABNF-based grammar may have multiple external encodings, such as one for a 7-bit US-ASCII environment, another for a binary octet environment, and still a different one when 16-bit Unicode is used. Encoding details are beyond the scope of ABNF, although german top 100 single charts 1984 provides definitions for a 7-bit US-ASCII environment as has been common to much of the Internet.top 100 single charts deutschland januar 2012

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alternative partnervermittlung wien A rule can define a simple, ordered string of values (i.e., a concatenation of contiguous characters) by listing a sequence of rule names. For example:französische singles in deutschland

      foo         =  %x61           ; a

      bar         =  %x62           ; b

      mumble      =  foo bar foo 

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south american online dating Linear white space: Concatenation is at the core of the ABNF parsing model. A string of contiguous characters (values) is parsed according to the rules defined in ABNF. For Internet specifications, there is some history of permitting linear white space (space and horizontal tab) to be freely and implicitly interspersed around major constructs, such as delimiting special characters or atomic strings.great online dating profile descriptions

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  • This specification for ABNF does not provide for implicit specification of linear white space.

kostenlos und ohne anmeldung flirt chat Any grammar that wishes to permit linear white space around delimiters or string segments must specify it explicitly. It is often useful to provide for such white space in "core" rules that are then used variously among higher-level rules. The "core" rules might be formed into a lexical analyzer or simply be part of the main ruleset.how to write a great online dating profile

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erfolgreichste single der 90er in deutschland Elements separated by a forward slash ("/") are alternatives. Therefore,partnersuche mit 50

      foo / bar  

erfolgreichste single der 80er in deutschland will accept <foo> or <bar>.

NOTE:
 
A quoted string containing alphabetic characters is a special form for specifying alternative characters and is interpreted as a non-terminal representing the set of combinatorial strings with the contained characters, in the specified order but with any mixture of upper- and lowercase.

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charts deutschland top 100 single It is sometimes convenient to specify a list of alternatives in fragments. That is, an initial rule may match one or more alternatives, with later rule definitions adding to the set of alternatives. This is particularly useful for otherwise independent specifications that derive from the same parent ruleset, such as often occurs with parameter lists. ABNF permits this incremental definition through the construct:virtual dating games online free

      oldrule     =/ additional-alternatives 

abba meistverkaufte single in deutschland So that the ruleset

      ruleset     =  alt1 / alt2

      ruleset     =/ alt3

      ruleset     =/ alt4 / alt5 

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      ruleset     =  alt1 / alt2 / alt3 / alt4 / alt5 

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chat gratis x single senza registrazione A range of alternative numeric values can be specified compactly, using a dash ("-") to indicate the range of alternative values. Hence:

      DIGIT       =  %x30-39 

wellness singles deutschland is equivalent to:

      DIGIT       =  "0" / "1" / "2" / "3" / "4" / "5" / "6" /

                     "7" / "8" / "9" 

meistverkaufte single aller zeiten deutschland Concatenated numeric values and numeric value ranges cannot be specified in the same string. A numeric value may use the dotted notation for concatenation or it may use the dash notation to specify one value range. Hence, to specify one printable character between end-of-line sequences, the specification could be:

      char-line = %x0D.0A %x20-7E %x0D.0A 

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erfolgreichste single aller zeiten deutschland Elements enclosed in parentheses are treated as a single element, whose contents are strictly ordered. Thus,

      elem (foo / bar) blat

erfolgreichste deutsche single aller zeiten matches (elem foo blat) or (elem bar blat), and

      elem foo / bar blat

meistverkaufte single aller zeiten wiki matches (elem foo) or (bar blat).

NOTE:
 
It is strongly advised that grouping notation be used, rather than relying on the proper reading of "bare" alternations, when alternatives consist of multiple rule names or literals.

meistverkaufte single aller zeiten Hence, it is recommended that the following form be used:

     (elem foo) / (bar blat) 

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meistverkaufte single aller zeiten weltweit The operator "*" preceding an element indicates repetition. The full form is:

      <a>*<b>element

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american girl dating a german guy A rule of the form:

      <n>element 

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      <n>*<n>element 

german top 100 single charts 2009 tracklist That is, exactly <n> occurrences of <element>. Thus, 2DIGIT is a 2-digit number, and 3ALPHA is a string of three alphabetic characters.top 100 german single charts märz 2015

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top 100 single charts august 2009 Square brackets enclose an optional element sequence:

      [foo bar] 

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      *1(foo bar). 

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top 100 single charts juni 2009 A semicolon starts a comment that continues to the end of line. This is a simple way of including useful notes in parallel with the specifications.singlebörsen gratis kostenlos

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top 100 single charts september 2009 The various mechanisms described above have the following precedence, from highest (binding tightest) at the top, to lowest (loosest) at the bottom: reisen für singles ab 50 in deutschland

  • Rule name, prose-val, Terminal value
  • Comment
  • Value range
  • Repetition
  • Grouping, Optional
  • Concatenation
  • Alternative

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  • Again, it is recommended that the grouping operator be used to make explicit concatenation groups.

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NOTES:
  1. This syntax requires a formatting of rules that is relatively strict. Hence, the version of a ruleset included in a specification might need preprocessing to ensure that it can be interpreted by an ABNF parser.
  2. This syntax uses the rules provided in singlebörsen test kostenlos.
      rulelist       =  1*( rule / (*c-wsp c-nl) )

      rule           =  rulename defined-as elements c-nl
                             ; continues if next line starts
                             ;  with white space

      rulename       =  ALPHA *(ALPHA / DIGIT / "-")

      defined-as     =  *c-wsp ("=" / "=/") *c-wsp
                             ; basic rules definition and
                             ;  incremental alternatives

      elements       =  alternation *c-wsp

      c-wsp          =  WSP / (c-nl WSP)

      c-nl           =  comment / CRLF
                             ; comment or newline

      comment        =  ";" *(WSP / VCHAR) CRLF

      alternation    =  concatenation
                        *(*c-wsp "/" *c-wsp concatenation)

      concatenation  =  repetition *(1*c-wsp repetition)

      repetition     =  [repeat] element

      repeat         =  1*DIGIT / (*DIGIT "*" *DIGIT)

      element        =  rulename / group / option /
                        char-val / num-val / prose-val

      group          =  "(" *c-wsp alternation *c-wsp ")"

      option         =  "[" *c-wsp alternation *c-wsp "]"

      char-val       =  DQUOTE *(%x20-21 / %x23-7E) DQUOTE
                             ; quoted string of SP and VCHAR
                             ;  without DQUOTE

      num-val        =  "%" (bin-val / dec-val / hex-val)

      bin-val        =  "b" 1*BIT
                        [ 1*("." 1*BIT) / ("-" 1*BIT) ]
                             ; series of concatenated bit values
                             ;  or single ONEOF range

      dec-val        =  "d" 1*DIGIT
                        [ 1*("." 1*DIGIT) / ("-" 1*DIGIT) ]

      hex-val        =  "x" 1*HEXDIG
                        [ 1*("." 1*HEXDIG) / ("-" 1*HEXDIG) ]




      prose-val      =  "<" *(%x20-3D / %x3F-7E) ">"
                             ; bracketed string of SP and VCHAR
                             ;  without angles
                             ; prose description, to be used as
                             ;  last resort 

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german single charts april 2013 References

american dating australian Normative References

[US-ASCII]
American National Standards Institute, “Coded Character Set -- 7-bit American Standard Code for Information Interchange”, ANSI X3.4, 1986.

american dating in australia Informative References

[RFC733]
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[RFC822]
usa singles in uk, “single american ladies in the uk”, STD 11, RFC 822, August 1982.

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singles mit niveau kostenlos runterladen The syntax for ABNF was originally specified in RFC 733. Ken L. Harrenstien, of SRI International, was responsible for re-coding the BNF into an Augmented BNF that makes the representation smaller and easier to understand.top 100 single charts oktober 2011

wie viele singles gibts in deutschland This recent project began as a simple effort to cull out the portion of RFC 822 that has been repeatedly cited by non-email specification writers, namely the description of Augmented BNF. Rather than simply and blindly converting the existing text into a separate document, the working group chose to give careful consideration to the deficiencies, as well as benefits, of the existing specification and related specifications made available over the last 15 years, and therefore to pursue enhancement. This turned the project into something rather more ambitious than was first intended. Interestingly, the result is not massively different from that original, although decisions, such as removing the list notation, came as a surprise.top 100 single charts 2011 deutschland

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partnersuche senioren hannover Certain basic rules are in uppercase, such as SP, HTAB, CRLF, DIGIT, ALPHA, etc.partnerhoroskop kostenlos astroschmid

      ALPHA          =  %x41-5A / %x61-7A   ; A-Z / a-z

      BIT            =  "0" / "1"

      CHAR           =  %x01-7F
                             ; any 7-bit US-ASCII character,
                             ;  excluding NUL

      CR             =  %x0D
                             ; carriage return

      CRLF           =  CR LF
                             ; Internet standard newline

      CTL            =  %x00-1F / %x7F
                             ; controls

      DIGIT          =  %x30-39
                             ; 0-9

      DQUOTE         =  %x22
                             ; " (Double Quote)

      HEXDIG         =  DIGIT / "A" / "B" / "C" / "D" / "E" / "F"

      HTAB           =  %x09
                             ; horizontal tab

      LF             =  %x0A
                             ; linefeed

      LWSP           =  *(WSP / CRLF WSP)
                             ; Use of this linear-white-space rule
                             ;  permits lines containing only white
                             ;  space that are no longer legal in
                             ;  mail headers and have caused
                             ;  interoperability problems in other
                             ;  contexts.
                             ; Do not use when defining mail
                             ;  headers and use with caution in
                             ;  other contexts.

      OCTET          =  %x00-FF
                             ; 8 bits of data

      SP             =  %x20

      VCHAR          =  %x21-7E
                             ; visible (printing) characters

      WSP            =  SP / HTAB
                             ; white space 

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top 100 single charts liste Dave Crocker (editor)
Brandenburg InternetWorking
675 Spruce Dr.
Sunnyvale, CA 94086
US
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Email: partnervermittlung marina lachen
single charts top 100 januar 2013 Paul Overell
THUS plc.
1/2 Berkeley Square,
99 Berkeley Street
Glasgow, G3 7HR
UK
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single charts top 100 april 2013 The IETF takes no position regarding the validity or scope of any Intellectual Property Rights or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; nor does it represent that it has made any independent effort to identify any such rights. Information on the procedures with respect to rights in RFC documents can be found in BCP 78 and BCP 79.german top 100 single charts 2013 youtube

single charts top 100 deutschland 2013 Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF on-line IPR repository at single white man south africa.www.singlebörsen kostenlos.de

single charts 2013 top 100 The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights that may cover technology that may be required to implement this standard. Please address the information to the IETF at single holiday south africa.anzahl singles in deutschland 2013