File: undo.doc

package info (click to toggle)
hol88 2.02.19940316-33
  • links: PTS
  • area: main
  • in suites: stretch
  • size: 65,988 kB
  • ctags: 21,623
  • sloc: ml: 199,939; ansic: 9,666; sh: 7,118; makefile: 6,095; lisp: 2,747; yacc: 894; sed: 201; cpp: 87; awk: 5
file content (21 lines) | stat: -rw-r--r-- 338 bytes parent folder | download | duplicates (11) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
\DOC undo

\TYPE {undo : (* history -> * history)}

\SYNOPSIS
Undo the last event in a history.

\LIBRARY window

\DESCRIBE

{undo h} returns a history with with the first event in {h}'s past as
its present.

\FAILURE
Fails if no events are stored in the history.

\SEEALSO
set_max_hist, get_max_hist, present, epoch, dodo, redo

\ENDDOC