Method for providing linguistic functions of English text in a mixed document of single-byte characters and double-byte characters

摘要

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.