Abstract: A system and method for converting Hangeul characters to Hanja characters in the Korean language. The method and system permit the user to select the conversion mode as either a character mode or a word based mode to provide flexible and accurate conversion operations.

Abstract: The method of the invention allows both single-byte character set (SBCS) and double-byte character set (DBCS) fonts in a DBCS code page. The invention stores the SBCS and DBCS text of the document in separate areas. Each area contains the following specific information about the text: the actual text itself, the length in bytes of the text, the horizontal starting position of the text, the font attributes for that text, a flag to indicate that the text is SBCS or DBCS text, and the value which points to the next area containing some text. The font attributes contain information such as the font typeface name, point size, color, weight, width, and the value to indicate whether the font type is an SBCS or a DBCS font type. A document is then set up to use different fonts, SBCS or DBCS, for specific sections of text and alternating back and forth between the fonts as many times as is necessary.

Abstract: In a single-byte character set English text mixed with a double-byte character set Japanese text, both an English spelling aid and a Japanese spelling aid can be provided and each respective spelling aid will be invoked depending upon whether the SBCS character set is indicated for English text or the DBCS character set is indicated for Japanese text. Still further, for a text which is mixed national languages of for example, English and German, the linguistic flag field can include additional information identifying the national language for a particular text string. Then if the linguistic flag field indicates that there is a misspelling for German, or a misspelling for English, then the corresponding text string can be highlighted on the display screen.

Abstract: An improved Yomi and Kanji phrase editing method and system are provided. In accordance with the invention, a structured document editor includes a normal state, a Yomi state, a Kanji state, and an active state. In the normal state, when the operator types Yomi characters on the keyboard, the corresponding Yomi character is directly displayed on the display. In the Yomi state, when a Yomi character is typed on the keyboard, a Yomi text node structure is assembled. The text node structure in the Yomi state will include the Yomi character string along with control information. When the operator wishes to convert the Yomi phrases into the corresponding Kanji phrases, the Yomi string is accessed from the Yomi text node structure and is subjected to a conversion process. The process returns each Kanji phrase and the corresponding Yomi phrase and a bookmark to the conversion table which was used in carrying out the conversion.

Abstract: A method is disclosed for deleting a marked portion of a structured document so as to prevent damaging the structure of the document. The method examines the contents of a marked portion of a structured document and determines which begin and end tags are unmatched. A begin tag whose end tag has not been marked or vice versa, is flagged so that it is not deleted when the contents of the mark are deleted. This allows the Structured Delete function to delete a marked portion of the structured document without damaging the document's structure.

Abstract: A method is disclosed for copying a marked portion of a structured document so as to prevent damaging the structure of the document at the target location where the contents of the mark is to be inserted. The method includes determining whether there are unbalanced begin tags or end tags in the portion to be copied and then inserting additional tags to balance the missing tags at the target location.