10 More Discussions You Might Find Interesting
1. Programming
Hello All,
I am a learner in C++. I was testing my inheritance knowledge with following piece of code.
#include <iostream>
using namespace std;
class base
{
public :
void display()
{
cout << "In base display()" << endl;
}
void display(int k)
{... (2 Replies)
Discussion started by: anand.shah
2 Replies
2. Shell Programming and Scripting
Hello,
I want to check whether string has only numeric characters. The following code doesn't work for me
#!/usr/local/bin/bash
if ]]; then
echo "true"
else
echo "False"
fi
# ./yyy '346'
False
# ./yyy 'aaa'
False
I'm searching for solution using character classes, not regex.... (5 Replies)
Discussion started by: urello
5 Replies
3. Programming
I have the two class definition as follows.
class A { public: int a; };
class B : virtual public A{ };
The size of class A is shown as 4, and size of class B is shown as 16. Why is this effect ?. (2 Replies)
Discussion started by: techmonk
2 Replies
4. Shell Programming and Scripting
Hi,
I have following regex condition, however it does not work with different logs having same visible string.I believe it is because of some difference with space character, is it possible to make it work everywhere.
Can someone suggest a better string?
/BIND dn=" uid=/
Thanks. (8 Replies)
Discussion started by: susankoperna1
8 Replies
5. UNIX for Advanced & Expert Users
Hi all!
I am trying to register a device in an existing device class, but I am
having trouble getting the pointer to an existing class.
I can create a class in a module, get the pointer to it and then use
it to register the device with:
*cl = class_create(THIS_MODULE, className);... (0 Replies)
Discussion started by: hdaniel@ualg.pt
0 Replies
6. Shell Programming and Scripting
Hi
Input:
-
--
---
----
aa-bb-cc
aa--bb--cc
aa---bb---cc
aa----bb----cc
Output:
.
-
-.
--
aa.bb.cc (7 Replies)
Discussion started by: chitech
7 Replies
7. Shell Programming and Scripting
I am having issues escaping special characters in my AWK script as follows:
for id in `cat file`
do
grep $id in file2 | awk '\
BEGIN {var=""} \
{ if ( /stringwith+'|'+'50'chars/ ) {
echo "do this"
} else if ( /anotherString/ ) {
echo "do that"
} else {
... (4 Replies)
Discussion started by: purebc
4 Replies
8. Shell Programming and Scripting
Hi,
I find it really strange while writing a simple regex to match and print the matched string,
dibyajyo@fwtest:~ #perl -e '$x = "root@rashmi>"; print "matched string:$1\n" if ($x =~ /(root@rashmi)/);'
matched string:root
dibyajyo@fwtest:~ #perl -e '$x = "root@rashmi>"; print... (1 Reply)
Discussion started by: rrd1986
1 Replies
9. Shell Programming and Scripting
So, I need to find the instances of a certain font and remove it....so far in my testing I am using the find command with regex to find a font I want to pull out. However, I seem to be slightly stuck, and I am sure the beard stroking Unix geniuses here can help me.
My example code:
find... (7 Replies)
Discussion started by: tlarkin
7 Replies
10. Shell Programming and Scripting
can anyone tell me why this doesn't work? I've been trying to play with character classes and I seem to be missing something here..!
echo "./comparecdna.summary" | awk '/^compare+]summary$/' # returns nothing
echo "./compare_cdna.summary" | awk '/^compare_+]summary$/' # returns nothing
echo... (5 Replies)
Discussion started by: anthalamus
5 Replies
ISWALNUM(3) Linux Programmer's Manual ISWALNUM(3)
NAME
iswalnum - test for alphanumeric wide character
SYNOPSIS
#include <wctype.h>
int iswalnum(wint_t wc);
DESCRIPTION
The iswalnum function is the wide-character equivalent of the isalnum function. It tests whether wc is a wide character belonging to the
wide character class "alnum".
The wide character class "alnum" is a subclass of the wide character class "graph", and therefore also a subclass of the wide character
class "print".
Being a subclass of the wide character class "print", the wide character class "alnum" is disjoint from the wide character class "cntrl".
Being a subclass of the wide character class "graph", the wide character class "alnum" is disjoint from the wide character class "space"
and its subclass "blank".
The wide character class "alnum" is disjoint from the wide character class "punct".
The wide character class "alnum" is the union of the wide character classes "alpha" and "digit". As such, it also contains the wide charac-
ter class "xdigit".
The wide character class "alnum" always contains at least the letters 'A' to 'Z', 'a' to 'z' and the digits '0' to '9'.
RETURN VALUE
The iswalnum function returns non-zero if wc is a wide character belonging to the wide character class "alnum". Otherwise it returns zero.
CONFORMING TO
ISO/ANSI C, UNIX98
SEE ALSO
isalnum(3), iswctype(3)
NOTES
The behaviour of iswalnum depends on the LC_CTYPE category of the current locale.
GNU
1999-07-25 ISWALNUM(3)