Browse Prior Art Database

Determining Proportional Justification Spaces in Text Justification

IP.com Disclosure Number: IPCOM000064531D
Original Publication Date: 1985-Jul-01
Included in the Prior Art Database: 2005-Feb-19

Publishing Venue

IBM

Related People

Authors:
Barker, BA Hernandez, IH [+details]

Abstract

In traditional word processors justification spaces can be proportional or non-proportional depending on the internal implementation of the editor. Both modes consider the font and pitch of the characters in the text to determine the number of spaces needed for left, right, center, half, or full justification of a line. Proportional spacing algorithms also consider the height and width of each character in a given font and pitch. Justification in either mode is adequate in most text editors, but a problem in justification can arise when attributes of the text characters being justified change the editing environment. An example of a text character attribute that changes the editing environment and word context is the optional underlining of spaces between words.