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-rw-r--r--ice-9/session.scm11
1 files changed, 7 insertions, 4 deletions
diff --git a/ice-9/session.scm b/ice-9/session.scm
index 934eab1bc..7e01702d8 100644
--- a/ice-9/session.scm
+++ b/ice-9/session.scm
@@ -58,10 +58,11 @@ Prints useful information. Try `(help)'."
*unspecified*)))))
(define (help-usage)
- (display "Usage: (help NAME) gives documentation about NAME (unquoted)
+ (display "Usage: (help NAME) gives documentation about NAME
(help) gives this text
-Example: (help help)
+Examples: (help help)
+ (help cons)
Other useful sources of helpful information:
@@ -72,8 +73,10 @@ Other useful sources of helpful information:
Tools:
-(debug) ;the debugger
-(backtrace) ;backtrace from last error
+(backtrace) ;show backtrace from last error
+(debug) ;enter the debugger
+(trace [PROCEDURE]) ;trace procedure (no arg => show)
+(untrace [PROCEDURE]) ;untrace (no arg => untrace all)
(OPTIONSET-options 'full) ;display option information
(OPTIONSET-enable 'OPTION)