KR20040041720A - Exception in management in WML to XTML transcoding - Google Patents

Abstract

The present invention relates to an exception handling method in converting a WML document into an XHTML document. More particularly, the present invention relates to a WML document supported by a WAP method, and more specifically, to an XHTML document referred to in a third generation language. The exception handling method can reduce the exception of the conversion.

The present invention provides a method for converting a WML document into an XHTML document;

Inputting the WML document, determining whether each character included in the WML document is convertible to an XHTML document, converting to an XHTML document if converting to an XHTML document, and converting to an XHTML document If this is not possible, check if the non-convertible character is a <do> tag or a <card> tag, if it is a <do> tag, convert it to a hyperlink in XHTML, and convert the <card> tag. In the case of the characterized in that it comprises a step of using a label (lable).

Description

Exception handling in converting JML documents to JML documents {Exception in management in WML to XTML transcoding}

The present invention relates to an exception handling method in converting a WML document into an XHTML document, and more particularly, to convert a WML document supported by a WAP method into an XHTML document referred to in a 3rd generation language. It is about exception handling that can reduce exceptions.

In recent years, there are two types of scripts provided by the wireless Internet, which are a handheld device markup language (HDML) language and an m-HTML language. Among them, the HDML language is being developed as a wireless markup language (WML) language.

The WML language is adopted in the WAP method developed to reduce the processing burden on the terminal side, and the m-HDML language is adopted in the ME (Mobile Explorer) method developed to easily acquire the contents. It is not activated compared to the WAP method.

Meanwhile, the wireless Internet service provided by the conventional WAP method requires a mobile terminal in which a WAP protocol stack and a WAP browser are built in order to provide content. In this case, the wireless Internet content provided by the WAP may include a deck and a deck. The information is displayed on the LCD screen of the mobile terminal using the concept of a card, and the movement between the cards and the selection of a specific item are performed using the keys provided in the mobile terminal.

That is, the card is one or several conversations between the user and the mobile terminal. For example, the card can be viewed as a card for selecting from a menu or inputting text. By moving between, you get or provide the information you want, and these cards come together to form the same deck as an HTML page.

In addition, to support wireless Internet services in WAP, a WAP protocol stack, a WAP browser, and a web server providing WAP gateway and WML content are required. The mobile terminal requests specific content according to a user's request. Is requested to the web server, and the response is sent to the WAP browser.

Accordingly, the mobile terminal displays the received WML contents on the LCD screen. In this case, the transmission unit of the provided WML contents is a deck, and the unit displayed at once on the LCD screen of the mobile terminal is a card and a navigation unit.

As described above, the conventional wireless Internet service mainly uses the WAP method, and the wireless Internet service of the WAP method is available only when a mobile terminal and a software environment are provided to provide a function conforming to the specification of a wireless application environment (WAE). Do.

Therefore, content services written in WML were not available to users of cordless or landline phones that do not have a WAP browser.

As WML content evolved, WML2.0 based on XHTML appeared.

WML2.0 provides a way to support WML's unique tags for compatibility with existing WML documents. However, in fact, many browser manufacturers offer a way to support WML's unique tags (WML1 extensions). It is not implemented.

Here, there is a need to convert WML documents, which currently occupy most of the content, to XHTML.

In order to solve this problem, a patent for a method of converting one card constituting a WML document into one eXtensible Hyper Text Markup Language (XHTML) document has been filed (Application No. 10-2000-0053530). How to convert a WAP document into an XHTML document.

Looking at this, how to convert a WML document into an XHTML document,

A first step of receiving a WML document;

A second step of parsing the input document;

A third step of examining characters in the parsed document;

A fourth step of inspecting a tag in the parsed document; And

If the inspected tag is converted into an XHTML tag, the tag is converted into a corresponding tag, and if not, the tag is discarded or represented by a combination of the corresponding XHTML tags.

In this way, the existing WML document is accessed and converted into an XHTML document, so that the existing document can be accommodated and used in a mobile environment.

However, as can be seen in the above-described fifth step, there are a lot of conversion exceptions that cannot be converted to XHTML depending on the tag, and thus there are many problems in which the page cannot be converted.

An object of the present invention devised to solve the above-mentioned problem is to convert an existing WML document to an XHTML document, but convert an XHTML document of a WML document that can reduce an exception of content conversion by handling an exception that is not converted. To provide an exception handling method in.

In order to achieve the above object, the present invention provides a method for converting a WML document into an XHTML document;

Inputting the WML document, determining whether each character included in the WML document is convertible to an XHTML document, converting to an XHTML document if converting to an XHTML document, and converting to an XHTML document If this is not possible, check if the non-convertible character is a <do> tag or a <card> tag, if it is a <do> tag, convert it to a hyperlink in XHTML, and convert the <card> tag. In the case of, it is intended to provide an exception handling method in converting an XHTML document of a WML document, characterized by using a label.

1 is a flowchart illustrating an exception handling method of document conversion according to the present invention.

Hereinafter, the configuration and operation of the embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a flowchart illustrating an exception handling method of document conversion according to the present invention.

First, when a WML (Wireless Markup Language) document is input (S102), the conversion server determines whether each tag included in the document can be converted into an XHTML document (S104).

The WML document is composed of one or more cards together to form a deck, and each card constitutes one independent screen in the mobile terminal.

If the conversion is possible to the XHTML document, the conversion to the XHTML document (S106).

When the conversion into the XHTML document is impossible, it is checked whether the non-convertible character is a <do> tag (S110).

If the <do> tag is correlated with the link, the hyperlink is converted into XHTML (S112).

This is true for most <do> tags.

At this time, when the hyperlink of the converted XHTML exceeds the width (one line) of the LCD screen provided in the mobile terminal, the next line is continuously displayed or deleted.

This part is preset by the Management Tool.

If it is not a <do> tag, it is checked whether a <card> tag representing multiple pages as one page (S114).

If it is the <card> tag, it is converted into a label of XHTML specifying a position (S116).

Whether this option is applied or not is preset with the Management Tool.

If the <card> tag is not, the tag is thrown as an exception (S118).

In this way, when all the conversion process is completed, the XHTML document is provided (S108).

In this case, the file name of the XHTML document is set as the ID value of the card. If there is no ID value, the file name is specified using an arbitrary value.

As described above, according to the present invention, an existing WML document may be converted into an XHTML document, but an exception of content conversion may be reduced by handling an exception that is not converted.

Claims (3)

A method of converting a WML document into an XHTML document; Inputting the WML document; Determining whether each character included in the WML document is convertible into an XHTML document; If it is possible to convert it to an XHTML document, If conversion into an XHTML document is not possible, checking if the non-convertible character is a <do> tag, and In the case of the <do> tag, an exception handling method for converting an XHTML document of a WML document, characterized in that it comprises the step of converting to a hyperlink of XHTML. The method of claim 1, wherein when the hyperlink of the XHTML exceeds the width of the LCD screen provided in the mobile terminal, the following lines are continuously displayed or deleted in the following lines. Exception handling method. The method according to claim 1, wherein if not the <do> tag, checking if it is a <card> tag, In the case of the <card> tag, converting to a label of XHTML, If it is not the <card> tag, exception processing of the tag is further performed.