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Text File | 1994-07-26 | 1.5 KB | 32 lines | [TEXT/R*ch] |
- Copyright (c) 1993-1994 by Xerox Corporation. All rights reserved.
-
- THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
- OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
-
- Permission is hereby granted to use or copy this program
- for any purpose, provided the above notices are retained on all copies.
- Permission to modify the code and to distribute modified code is granted,
- provided the above notices are retained, and a notice that the code was
- modified is included with the above copyright notice.
-
- Please send bug reports to Hans-J. Boehm (boehm@parc.xerox.com).
-
- This is a string packages that uses a tree-based representation.
- See gc.h for a description of the functions provided. Ec.h describes
- "extensible cords", which are essentially output streams that write
- to a cord. These allow for efficient construction of cords without
- requiring a bound on the size of a cord.
-
- de.c is a very dumb text editor that illustrates the use of cords.
- It maintains a list of file versions. Each version is simply a
- cord representing the file contents. Nonetheless, standard
- editing operations are efficient, even on very large files.
- (Its 3 line "user manual" can be obtained by invoking it without
- arguments. Note that ^R^N and ^R^P move the cursor by
- almost a screen. It does not understand tabs, which will show
- up as highlighred "I"s. Use the UNIX "expand" program first.)
- To build the editor, type "make cord/de" in the gc directory.
-
- This package assumes an ANSI C compiler such as gcc. It will
- not compile with an old-style K&R compiler.
-