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Four-byte logical font coding method

A coding method, four-byte technology, applied in the field of four-byte logical font coding, can solve the problem of not clearly proposing logical font coding, etc., and achieve the effect of expanding the application of characters and the effect of convenient and fast expansion

Inactive Publication Date: 2007-07-11
北京方正国际软件系统有限公司 +1
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Problems solved by technology

[0005] The four-byte font encoding method mentioned in the existing literature or patents does not clearly propose to use the existing font encoding method to form a logical font encoding. a new logical font

Method used

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  • Four-byte logical font coding method

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with specific embodiments.

[0029] A four-byte logical font encoding method, which expands the 2-byte encoding of the general physical font into a 4-byte logical font encoding, of which 2 bytes retain the general physical font encoding, and the remaining 2-byte extended area is used for recording Physical font partition table, glyph index flag, extended character flag, the physical font partition table is used to identify the physical font to be used, the glyph index flag is used to identify whether to use the font index, and the extended character flag is used Used to identify whether extended characters are used.

[0030] In this embodiment, the logical font encoding system adopts a 32-bit 4-byte encoding design, and the encoding is divided into more than 4 areas, and the areas included therein are as shown in Figure 1: namely, the character encoding section 11, the partition section 12, The font i...

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Abstract

The invention relates to a four digit logic character coding method. Existing technical Chinese character usually uses 4 bytes coding method, through 32 bits coding method, conveniently combines several physical characters, style and font, and expansion font into logic font, with only slight modifying of the configuring document to all kinds of foreign word bank, easy access to all kinds of foreign word bank and symbol bank of various manufactures, no matter these foreign words taking on normal coding area or not, being able to using complex charts and figures and so on as characters with sufficient space left.

Description

technical field [0001] The invention belongs to the technical field of font coding in the field of typesetting and printing, and in particular relates to a four-byte logical font coding method. Background technique [0002] Text, as the main form of information in typesetting and printing, is generally installed in the system in the form of a font library for use. In some professional publishing fields, it is often necessary to use a large number of symbols to express specific meanings. These symbols need to be written in the form of characters. The processing is currently in the form of extended characters, that is, it is used by creating characters in the reserved area of ​​​​some fonts. [0003] At present, the font library adopts the double-byte storage method, and the area reserved for new characters is limited. When a large number of characters needs to be expanded, it often cannot meet the needs; in addition, because different fonts are stored in different font files ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/22G06F17/28G06F17/30
Inventor 李平立刘畅王保华龚健
Owner 北京方正国际软件系统有限公司
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