Microsoft Typography | Developer information | Specifications | OpenType font development
	Lao OpenType Specification | Terms | Shaping | Features | Other | Appendix
		Terms The following terms are useful for understanding the layout features and script rules discussed in this document. Glyph - A glyph represents the displayed form of one or more characters. Base Glyph - Any glyph that can have a diacritic mark above or below it. Layout operations are defined in terms of a base glyph, not a base character, as a ligature may act as the base. Character - Each character represents a Unicode character code point. For example the 'ko' character is U+0E81. Combining Mark - A vowel sign or tone mark which is positioned above or below a character to provide pronunciation guidance. Cluster - The effective "unit" of Lao writing systems; consisting of a consonant, vowel signs and combining tone marks, or independent vowel letters. this page was last updated 5 April 2002 © 2002 Microsoft Corporation. All rights reserved. Terms of use. comments to the MST group: how to contact us
	Lao OpenType Specification | Terms | Shaping | Features | Other | Appendix
	Microsoft Typography | Developer information | Specifications | OpenType font development