KR20020069795A - The method for recognize markup language to utilize universal document type definition and its readable form - Google Patents

Abstract

PURPOSE: A method capable of recognizing a markup language is provided to supply various information on the web to a user in real time by storing DTD information with respect to the markup languages on a web, recognizing any markup language, and embodying a corresponding markup language using a software for making a user recognize the corresponding markup language and for converting the markup language into a DTD based on an XML(eXtensible Markup Language). CONSTITUTION: A client unit(10) comprises an XML browser unit(11) and a document conversion unit(20). The XML browser unit(11) supports an XML document on the Internet for a web search for converting and recognizing various markup languages on a web in the client unit(10) in real time. The document conversion unit(20) comprises an XML conversion unit(21), a common DTD unit(22), and a protocol conversion unit(23). A WAP(Wireless Application Protocol) gateway unit(2) converts into a predetermined protocol when a wireless Internet is used. A web server unit(1) supports a web document comprising various markup languages to the client unit(10).

Description

The method for recognize markup language to utilize universal document type definition and its readable form}

The present invention relates to a method of freely recognizing a markup language using a common document prototype definition and a recording medium recorded by the method. More specifically, various markup languages on the web, that is, HTML (HyperText Markup Language) ), The public document prototype definition (hereinafter referred to as 'DTD') according to the present invention is based on XML in order to recognize a web document made with WML (Wireless Markup Language), XML (eXtensible Markup Language), etc. in an application program. DTD (Document Type Definition) is a form that can be recognized by the user by recognizing DTDs of various types of markup language on the web by having the common parts of several types of DTDs and including the remaining parts. A method and method for freely recognizing markup language by using a common document prototype definition to be displayed with It relates to a recording medium recorded by the.

In recent years, the modern society has faced a remarkable development in the information and communication field and the Internet due to the digital revolution, so that users can receive the information they need in real time using the wired and wireless Internet through media such as computers and mobile communication terminals. It became. The Internet has been used for military purposes, known as the ARPANET, which was launched to share information about US military and military research, and is now widely used, not limited to a specific field.

In recent years, with the explosive spread of computers, the Internet has become a huge and efficient medium for storing and providing information by connecting numerous computer networks around the world. The Internet is used for various purposes such as e-mails, newsgroups, file transfers, information transmission, and retrieval, and the commercial purpose of pursuing various benefits by using the Internet is increasing as the number of networks connected to the Internet and the number of Internet users are increasing rapidly. The opening of the web site is active.

Websites on the Internet create web documents using markup language to provide netizens with a variety of information. Markup is a text that displays special or additional information in the text. All things mean markup or bullets or numbering to give extra meaning, such as underlining or color, changing fonts, or ordering the contents of a document. In general, the markup language is used to enable the markup of the document together with the content of the document together with the content of the document in an electronic document created through a computer using a tag.

As the markup language, various languages such as HTML, WML, and XML are used. The HTML is suitable for displaying hypertext, multimedia, and simple documents in SGML applications, and most web documents up to now are stored and transmitted as HTML. It is becoming. The WML is a language based on XML. It is a language that defines and displays a user interface for effective web access on wireless terminals such as telephones, pagers, and PDAs. The advent of wireless Internet is in the spotlight. The XML is an extensible language, not a fixed format such as HTML, which is essentially a meta-language for describing other languages. It is designed to solve the complex functions of SGML and the simplicity of HTML. It is also expected to be widely used in the areas of electronic publishing, sales automation, digital libraries and e-commerce.

The markup languages used to produce web documents are various as described above, and most web documents are mainly composed of HTML format. In particular, when a user uses the Internet using a wireless terminal, as shown in FIG. A WAP (Wireless Application Protocol) such as a mobile phone base station connected to a dedicated line by converting a web server 1 that provides information using HTML to a WML in a form recognizable by the wireless terminal 10 through a converter 3. The gateway unit 2 converts HTTP, a web protocol, and WML, a web document language, into WAP, a wireless Internet transport protocol, so that a user having a wireless terminal 4 can recognize the service. In the same conventional method, in order for a client to recognize a web document composed of various markup languages, a predetermined application program uses the markup language. To need to have a DTD information about, which faces the problem of lowering the application and system performance.

In addition, the above method requires the development of a conversion device that performs a conversion operation in a form recognizable to the user due to the difference between the transport protocol and the markup language, and the user receiving the service from the web server that provides the service. It has a problem that the burden on the time and cost of building a system is great because it needs to be converted into a document of an appropriate type according to the environment of the company.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and the DTD information for various markup languages on the web can be embedded in the wired / wireless terminal on the client side so that any type of markup language can be freely recognized. By implementing the software to convert the markup language into XML-based DTD so that the user can recognize it, the user can use the wired / wireless internet without having to have a separate hardware conversion device for different markup languages. It aims to provide various information on the web to the user in real time by receiving the information on the web document in markup language.

In order to achieve the above object, a document type conversion program is embedded in the terminal through an XML browser unit supporting XML documents on the web on a client / wireless terminal and a recording medium that can be downloaded or read through a computer. The document type conversion unit may be stored and registered in the XML browser unit, and the DTD of the web document produced in various markup languages on the web may be recognized and formatted into an XML-based document, and the user of the client unit may recognize the XML document. By using the common document prototype definition, the markup language can be freely recognized.

1 is a block diagram showing a conventional web document conversion method

2 is a block diagram of a network system constructed according to an embodiment of the present invention.

3 is a block diagram of a common DTD unit applied to the present invention

4 is a flowchart illustrating a data processing process of a client unit according to the present invention.

* Description of Signs of Main Parts of Drawings *

Web server section 2. WAP gateway section

3. Converter 10. Client part

11.XML browser unit 20. Document type converter

21.XML conversion unit Public DTD Department

23. Protocol conversion section 23a. Protocol encoding section

23b. Protocol decoding section

The present invention transmits a web document composed of various markup languages on the web to a client through a wired / wireless internet network, without converting the document into a form suitable for a user's environment receiving a service from the web server unit 1. After recognizing the corresponding DTD information of the web document in various markup languages in the wired / wireless terminal of the client unit 10, converting it into an XML-based DTD so that the user can recognize it on the monitor or the LCD screen. Implemented in software to be displayed as

The various markup languages provided on the web have a slightly different DTD, which is a set of syntax rules for defining tags to be used in a document according to each markup language. The DTD (Document Type Definition) It tells you which tags you can use, in what order they appear in the document, which tags can appear in other documents, which tags have attributes, and so on. The DTD was originally developed for use in SGML, and is slightly different from XML. The XML that is the basis of the client part according to the present invention is not a language itself but rather a system for defining languages. There is an advantage that a company or organization that wants to use XML for data exchange instead of having a fixed DTD, as described above, can define their own DTD. Use it.

The client unit 10 downloads the software according to the present invention from the web server unit 1 in which a session is formed through the Internet network, or stores it in a corresponding terminal through a computer-readable recording medium such as a CD and registers it in a web browser. Thus, when the client unit 10 is connected to the web server unit 1 in which the session is formed through the Internet network, the web server unit 1 recognizes the document type converting unit 20 of the client unit 10. The document can be converted into a document using the corresponding protocol and DTD, and the web document provided by the web server unit 1 is searched, and the retrieved web document is stored in the document type conversion unit 20 of the client unit 10. It recognizes DTD information and transmission protocol of web document, converts it into protocol and document that client can recognize, and displays it for user recognition.

Hereinafter, a method of freely recognizing a markup language using a common document circle definition formed by an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a block diagram of a network system constructed according to an embodiment of the present invention, FIG. 3 is a block diagram of a common DTD unit 22 applied to the present invention, and FIG. 4 is a client unit 10 applied to the present invention. Is a flow chart showing a data processing procedure of

2 is an overall block diagram of a network system constructed according to an embodiment of the present invention.

As shown, in order to recognize various markup languages on the web in real time in the client unit 10, an XML browser unit 11 and an XML conversion unit supporting XML documents on the Internet to enable web searching. A client unit 10 composed of a document type converting unit 20 comprising a 21, a common DTD unit 22, and a protocol converting unit 23; WAP gateway unit 2 for converting to a predetermined protocol when using the wireless Internet; The client unit 10 includes a web server unit 1 for supporting a web document in various markup languages.

The client unit 10 uses a wired / wireless terminal such as a computer, a personal digital assistant (PDA), and a mobile phone terminal, but uses an XML browser unit 11 such as an explorer or a netscape that supports XML documents on the web and the Internet. Stored in the client unit 10 via a recording medium that can be downloaded or read by a computer to recognize the DTD of the web document produced in various markup languages on the web, and converts it into a predetermined document format based on XML. After that, the document type converting unit 20 includes a document type converting program so as to be implemented in a form that can be recognized by a user of the client unit.

The document type converting unit 20 is a technology corresponding to the essential part of the present invention. The document type converting unit 20 may recognize the DTD information of various markup languages stored on the client unit 10 and support it on the web and convert the document type into an XML-based document format. In order to implement the above software, the software for implementing the above technology will be described in terms of modules. The XML conversion unit 21, the common DTD unit 22, and the protocol conversion unit 23 may be configured.

The XML conversion unit 21 transmits the request of the client unit 10 to the web server unit 1, and is a Well-Formed XML document for a predetermined markup language returned from the web server unit 1. The user of the client unit 10 inputs a URL (Uniform Resource Locator) which designates the location of a site and a web page to be searched through the wired / wireless terminal and searches through the XML browser unit 11. However, the XML conversion unit 21 converts the document using the DTD of the web document supported by the web server unit to transmit the request of the client unit 10 to the web server unit 1, and the web server unit. The predetermined markup language answered in (1) is converted into a well-formed XML document that can be recognized by the client unit 10, and provided to the user, and the well-formed XML document is a document. Minimum requirements for an XML document to be considered as an XML document A document that means a set, and may or may not have a DTD, but at least one element must be present and the only element that encompasses all of the content as a whole. Each element is an XML document that consists of the correct containment relationship.

The common DTD unit 22 includes a common DTD of each markup language used by the XML conversion unit 21 and unique DTD information of each markup language. As shown in FIG. The common DTD unit 22 includes unique DTD information such as HTML, WML, ehtm and the like, and common XML DTD information. When the client unit 10 requests the web server unit 1, the XML browser unit 11 Supporting the protocol conversion unit 23 and the XML conversion unit 21 to recognize the URL input through the web server unit 1 to convert the document using the corresponding protocol and DTD, the web server unit 1 By recognizing the DTD of the web document transmitted from the), the XML conversion unit 21 supports the conversion to the XML-based document.

The protocol conversion unit 23 is composed of a protocol encoding unit 23a and a protocol decoding unit 23b. The protocol encoding unit 23a transmits a response transmitted from the web server unit 1 to the client unit 10. Supported by the common DTD unit 22 so as to be recognized by the wired / wireless terminal, it is converted into a client protocol and provided, and the protocol decoding unit 23b transmits a web search request from the wired / wireless terminal of the client unit 10. Provided by converting to a protocol that can be recognized by the web server unit 1 with the support of the common DTD unit 22 to provide it in accordance with the form of the web.

The WAP gateway unit 2 is a network resource used when the client unit 10 is a wireless terminal. The WAP gateway unit 2 receives a radio signal that the client unit 10 requests from the web server unit 1 to recognize the WAP protocol. The protocol converts the document into a predetermined protocol accessible to the web server unit 1 so as to search for the document, and transmits the predetermined information retrieved through the web server unit 1 to the client unit 10. The WAP protocol converts the wireless signal so that the wireless terminal can recognize the wireless terminal, thereby enabling web access through the wireless terminal.

The web server unit 1 supports a web document made of a predetermined markup language in order to provide various information to the client unit 10 and receives a request from the client unit 10. By providing a DTD, the client unit 10 converts the document format into an XML-based document in real time so that the user can provide the corresponding information.

4 is a flowchart illustrating a data processing process of the client unit 10 applied to the present invention.

The user can download the software for recognizing DTD information of various markup languages supported on the web and converting the document into XML-based document format by using a computer-readable recording medium such as CD or the like. By storing in a predetermined memory space on the wired / wireless terminal of the client unit 10, the document type converting unit 20 including the XML converting unit 21, the common DTD 22 unit, and the protocol converting unit 23 is formed. And (100), by registering in the XML browser unit (110) (110) to be mutually recognized, the organic combination is made to enable free web search according to the present invention.

While the user of the client unit 10 inputs a URL specifying a location of a site and a web page to be searched through an input unit (not shown) of the wired / wireless terminal (120), the user searches through the XML browser unit 11, The web server unit 1 which recognizes the input URL and provides a web document to be searched with the support of the common DTD unit 22 in the protocol decoding unit 23b of the document type conversion unit 20 may be recognized. Converting the protocol to the protocol (130), and converting the document using the DTD of the web document supported by the web server unit 1 by the support of the common DTD unit 22 in the XML conversion unit 21 (140). The service request of the client unit 10 is transmitted to the web server unit 1 (150).

The response of the web server unit 1, which is the web document retrieved through the XML browser unit 11, is transmitted to the wired / wireless terminal of the client unit 10 by the corresponding transmission protocol (160), and the document type conversion unit 20 Protocol encoding unit 23a of the client unit 10 converts the client server 10 into a client protocol with the support of the common DTD unit 22 so as to recognize the response of the web server unit 1 in the wired / wireless terminal of the client unit 10. In step 170, the DTD of the markup language transmitted from the web server unit 1 is recognized by the common DTD unit 22, and provides predetermined DTD information to the XML conversion unit 21 (180). The conversion unit 21 formats the XML-based document so that it is displayed in a form that can be recognized by the user through an output unit (not shown) such as a monitor or an LCD screen (190). To be provided freely in real time without the DTD constraint do.

Hereinafter, an embodiment of the DTD conversion used when the actual HTML document is converted into an XML document according to the present invention will be described.

For example, an HTML document written using paper.dtd and paper.css is an example.

Documents displayed on the monitor or LCD screen to the user are output as shown below.

1999 11 9

Modnnet

modnnet@modnnet.co.kr

This is an example of an XML document that uses paper.dtd created for the paper format and paper.css, a CSS file that can be applied to a document created using this dtd, as a style sheet. Note that paper.dtd is a simple dtd representing the paper format. So this part is about ABSTRACT.

Introduction

You can write about the introduction. The body can be written in several unit modules.

2. Related Research

3. ....

4. Experiment Contents and Results

5. Conclusion and future research

Write a conclusion!

The DTD for HTML document conversion as above is as follows.

<! ELEMENT PAPER (TITLE, DATE *, AUTHOR *, ABSTRACT?, BODY?, REFERENCE?, FOOT?)>

<! ELEMENT TITLE (#PCDATA)>

<! ELEMENT ABSTRACT (#PCDATA)>

<! ELEMENT DATE (YEAR, MONTH, DAY)>

<! ATTLIST DATETYPE (LAST_MODIFIED | BEGINNING_DATE | SUBMIT_DATE) #REQUIRED>

<! ELEMENT YEAR (#PCDATA)>

<! ELEMENT MONTH (#PCDATA)>

<! ELEMENT DAY (#PCDATA)>

<! ELEMENT AUTHOR (NAME, EMAIL, (PHONE)?)>

<! ELEMENT NAME (#PCDATA)>

<! ELEMENT EMAIL (#PCDATA)>

<! ELEMENT PHONE (#PCDATA)>

<! ELEMENT BODY (MODULE | PA) *>

<! ELEMENT MODULE (MTITLE, MBODY) *>

<! ELEMENT MBODY (PA | PB | LIST | COMMENT | SUBLIST) *>

<! ELEMENT MTITLE (#PCDATA)>

<! ELEMENT PA (#PCDATA)>

<! ELEMENT PBEMPTY>

<! ELEMENT LIST (((((LTITLE) *, ((LCOMPO) + | SUBLIST)) | LIST) *)>

<! ELEMENT SUBLIST (LCOMPO) *>

<! ELEMENT LTITLE (#PCDATA)>

<! ELEMENT LCOMPO (#PCDATA)>

<! ELEMENT COMMENT (#PCDATA)>

<! ELEMENT REFERENCE (REF, (RCOMPO) *)>

<! ELEMENT REF (#PCDATA)>

<! ELEMENT RCOMPO (NUMBER, NAME *, REFTITLE, REFBOOK ?, PAGE ?, YEAR?)>

<! ELEMENT PAGE (BEGINPAGE, PDASH, ENDPAGE)>

<! ELEMENT PDASH (#PCDATA)>

<! ELEMENT BEGINPAGE (#PCDATA)>

<! ELEMENT ENDPAGE (#PCDATA)>

<! ELEMENT REFTITLE (#PCDATA)>

<! ELEMENT REFBOOK (#PCDATA)>

<! ELEMENT NUMBER (#PCDATA)>

<! ENTITY% DASH "&#x2d;">

<! ELEMENT FOOT (PA) *>

An example of converting the HTML document into an XML document through the XML conversion unit of the client unit using a DTD is as follows.

<? xml version = "1.0" encoding = "KSC5601"?>

<? xml-stylesheet type = "text / css" href = "paper.css"?>

<! DOCTYPE PAPER SYSTEM "paper.dtd">

<PAPER xmlns: HTML = "http://www.w3.org/Profiles/XHTML-transitional">

<TITLE> Document example using paper.dtd and paper.css </ TITLE>

<DATE>

<YEAR> 1999 </ YEAR>

<MONTH> 11 </ MONTH>

<DAY> 9 </ DAY>

</ DATE>

<AUTHOR>

<NAME> modnnet </ NAME>

<EMAIL> modnnet@modnet.com </ EMAIL>

</ AUTHOR>

<ABSTRACT> An XML document example using paper.dtd written for the paper format and paper.css, a CSS file that can be applied to documents created using this dtd, as a style sheet. Please note that So this part is about ABSTRACT.

</ ABSTRACT>

<BODY>

<MODULE>

<MTITLE> 1. Introduction </ MTITLE>

<MBODY>

You can write the content of the <PA> Introduction. The body can be divided into several unit modules like this. </ PA>

</ MBODY>

</ MODULE>

<MODULE>

<MTITLE> 2. Related Research </ MTITLE>

<MBODY>

</ MBODY>

</ MODULE>

<MODULE>

<MTITLE> 3. .... </ MTITLE>

<MBODY>

</ MBODY>

</ MODULE>

<MODULE>

<MTITLE> 4. Experiment and Results </ MTITLE>

<MBODY>

<PB />

</ MBODY>

</ MODULE>

<MODULE>

<MTITLE> 5. Conclusion and future work </ MTITLE>

<MBODY>

<PA> Write a conclusion ~! </ PA>

</ MBODY>

...

...

As described above, by storing the document type conversion program on the wired / wireless terminal of the client unit and registering the document type conversion program in the XML browser unit 11, the corresponding protocol and DTD of the web document made in various markup languages on the web in the client unit 10 After recognizing this, it is converted in real time and provided to the user.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to the drawings.

According to the present invention, the web document according to the different transmission protocols and DTD rules is displayed in real time by the client unit and displayed in a form that can be recognized by the user due to various markup languages on the web. It is possible to solve the problem of having to develop and convert the document into a form suitable for the user's environment, thereby improving the performance of the web server unit and providing various information to the client unit.

In addition, due to the different DTDs of the markup language, the user can overcome the limitation of searching only the documents suitable for the environment of the client, so that users who want to receive information through the web search are free of the web regardless of the different DTD of the markup language. It is possible to search, thereby improving the user's convenience.

Claims (4)

In the method of freely recognizing markup language using common document prototype definition, On the wired / wireless terminal of the client unit, an XML browser unit supporting XML documents on the web and a document type conversion unit incorporating a document type conversion program are stored in the terminal through a recording medium that can be downloaded or read through the Internet. After registering with the XML browser, the DTD of the web document produced in various markup languages on the web is recognized and formatted into an XML-based document, and the XML document is displayed in a form that can be recognized by a user of the client unit. Free recognition of markup languages using common document prototype definitions The method of claim 1, The document type converting unit transmits a request of a client unit to a web server unit, and an XML conversion unit for converting a predetermined markup language returned from the web server unit into an XML document; A common DTD unit including a common DTD of each markup language used by the XML conversion unit and a unique DTD of each markup language; The protocol encoding unit converts the response transmitted from the web server unit into the client protocol with the support of the common DTD unit so that the client unit's wired / wireless terminal can recognize the response. It is possible to freely recognize the markup language by using a common document prototype definition, which is composed of a protocol conversion unit comprising a protocol decoding unit for converting into a predetermined protocol that can be recognized by the web server unit to support the public DTD unit. Way The method of claim 1, A first step of inputting a URL for designating a location to be searched by a user of the client unit through an input unit of a wired / wireless terminal; A second step of recognizing the input URL and converting the protocol decoding unit into a protocol that can be recognized by the corresponding web server unit with the support of the public DTD unit; A third step of converting a document using the DTD of the corresponding web document by the XML converting unit with the support of the public DTD unit to transmit a request of the client unit to the corresponding web server unit; A fourth step of converting a response of the web server part retrieved and transmitted through an XML browser part into a client protocol with the support of a common DTD part in a protocol encoding part so that the client part can recognize the response; A fifth step of recognizing the DTD of the markup language transmitted from the web server unit in the common DTD unit and providing the DTD information to the XML conversion unit; The XML conversion unit uses a common document prototype definition, wherein the XML conversion unit comprises the sixth step of formatting the DTD recognized through the fifth step into an XML-based DTD document to be displayed through the output unit of the client. Freely recognizable In a recording medium recording a method of freely recognizing markup language using a common document prototype definition, A first step of inputting a URL for designating a location to be searched by a user of the client unit through an input unit of a wired / wireless terminal; A second step of recognizing the input URL and converting the protocol decoding unit into a protocol that can be recognized by the corresponding web server unit with the support of the public DTD unit; A third step of converting a document using the DTD of the corresponding web document by the XML converting unit with the support of the public DTD unit to transmit a request of the client unit to the corresponding web server unit; A fourth step of converting a response of the web server part retrieved and transmitted through an XML browser part into a client protocol with the support of a common DTD part in a protocol encoding part so that the client part can recognize the response; A fifth step of recognizing the DTD of the markup language transmitted from the web server unit in the common DTD unit and providing the DTD information to the XML conversion unit; The XML conversion unit records a program for executing a sixth step of formatting the DTD recognized through the fifth step into an XML-based DTD document to be displayed on the output unit of the client in the wire / wireless terminal.