Thank you, I'll try to keep that present (2 & null) after reviewing current code.
What is this RHS you are refering to please?
Uhm, not really on the possible error topic - as I experienced it differently.
....
Phew... i still had that in the terminal so I could scroll to it...
This is with code of the 'initial' post/s ; where the 'catch' was different from the code we're talking about now (recent post with code).
This 'symbol' cannot be compared to a number, thus creating an 'expected' error message, which I wanted to get rid of -> as it breaks the visual experience.
Could you advice a better handling for this situation?
-> Catching arrow keys without showing the enduser an error message? <-
We have requirments to not allow a userid login abilities but allow users to 'su' to it. In solaris I normally set the shell in /etc/passwd to bin/false. THis does not work on Linux, any suggestions would help. (1 Reply)
i want to delete every newline and every line which starts with "RECORD......." in a file.
FILE:
Record 61391 in base BROCKHAUS (Timestamp: 2008-04-09 11:38:38)
UNTERTITEL :
Gräfin (seit 1707 Reichsgräfin) von, * Schwerin 4. 2. 1686, + Berlin
21. 10. 1744; wurde
Record 61392 in base BROCKHAUS... (4 Replies)
Hi,
I'm new to UNIX and am trying to learn shell scripting in order to work on an interface that I inherited when a co-worker left. I need to be able to check to see whether a file exists to determine whether the FTP has taken place, but in testing, the if statement always evaluates as false,... (3 Replies)
Hi All,
I am using the below Script to enter a line in the File:
#!/bin/ksh
# To delete the last line if it contains the pattern Redirect permanent / Virgin Atlantic Airways - Popup
echo "Enter the URL that should point to the particular microsite"
read url
# To delete the last line if it... (0 Replies)
Why this happens?
How to solve this?
$netstat -na |grep 9325
tcp 0 0 127.0.0.1:9325 127.0.0.1:9325 ESTABLISHED
When a client socket repeatedly tries to connect to an inactive(no server socket is listening on this port) local port,connect succeeds.
... (1 Reply)
Checking configuration access files for an AIX server, left me wondering about this :confused::
If a user is added to system group, it gets gid=0 with some security risks because it gets some root kind of file access level.
Is this insecure condition kept if the user has admin variable... (0 Replies)
I have read the below from the book bash cookbook.Tail +1 filenames is similar to cat filename
I have tried the same in Ubuntu 11.10 with bash. 4.0 .
I have received error for the Same.
May I know in which system that will work fine ?
Thanks (1 Reply)
Hi
I have written a script to send email alerts when load of my linux server reaches max point
I keep getting false emails thought the load is normal , looks like same email is generated again and again - called from cron tab
checked if the tempfile is present , no it is not , cleaned... (22 Replies)
Discussion started by: anil529
22 Replies
LEARN ABOUT OSX
me_util
grammar::me::util(n) Grammar operations and usage grammar::me::util(n)
__________________________________________________________________________________________________________________________________________________NAME
grammar::me::util - AST utilities
SYNOPSIS
package require Tcl 8.4
package require grammar::me::util ?0.1?
::grammar::me::util::ast2tree ast tree ?root?
::grammar::me::util::ast2etree ast mcmd tree ?root?
mcmd lc location
mcmd tok from ?to?
::grammar::me::util::tree2ast tree ?root?
_________________________________________________________________DESCRIPTION
This package provides a number of utility command for the conversion between the various representations of abstract syntax trees as speci-
fied in the document grammar::me_ast.
::grammar::me::util::ast2tree ast tree ?root?
This command converts an ast from value to object representation. All nodes in the ast will be converted into nodes of this tree,
with the root of the AST a child of the node root. If this node is not explicitly specified the root of the tree is used. Existing
content of tree is not touched, i.e. neither removed nor changed, with the exception of the specified root node, which will gain a
new child.
::grammar::me::util::ast2etree ast mcmd tree ?root?
This command is like ::grammar::me::util::ast2tree, except that the result is in the extended object representation of the input
AST. The source of the extended information is the command prefix mcmd. It has to understand two methods, lc, and tok, with the
semantics specified below.
mcmd lc location
Takes the location of a token given as offset in the input stream and return a 2-element list containing the associated line
number and column index, in this order.
mcmd tok from ?to?
Takes one or two locations from and to as offset in the input stream and returns a Tcl list containing the specified part of
the input stream. Both location are inclusive. If to is not specified it will default to the value of from.
Each element of the returned list is a list containing the token, its associated lexeme, the line number, and column index,
in this order.
Both the ensemble command ::grammar::me::tcl provided by the package grammar::me::tcl and the objects command created by the package
::grammar::me::cpu fit the above specification.
::grammar::me::util::tree2ast tree ?root?
This command converts an ast in (extended) object representation into a value and returns it. If a root node is specified the AST
is generated from that node downward. Otherwise the root of the tree object is used as the starting point.
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category gram-
mar_me of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may
have for either package and/or documentation.
KEYWORDS
abstract syntax tree, syntax tree, tree
CATEGORY
Grammars and finite automata
COPYRIGHT
Copyright (c) 2005 Andreas Kupries <andreas_kupries@users.sourceforge.net>
grammar_me 0.1 grammar::me::util(n)