11-19-2009
Quote:
Originally Posted by
m1xram
What is the purpose of the filter? It looks like a good way to collect emails for spamming.
I gave the @ symbol as an ambiguous symbol; its meaning was simply an example. If I have to come to unix forums to help me parse large ammounts of text to enhance my spamming capabilities one would conclude I am a terrible spammer!
I also see your sed statements work off a-z, 0-9; - how would one account for characters that are shift + numbers as well (possibly) being in the words such as '#$%-' while unsure of their exact order therein? Can you block special characters like [!-&] much like the alpha [a-z]? Does one have to do so in correct ASCII order?
I appreciate all of your help!
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strord(3C) strord(3C)
NAME
strord - convert string data order
SYNOPSIS
DESCRIPTION
The text orientation (mode) of a file can be right-to-left (non-Latin) or left-to-right (Latin). This text orientation can affect the way
data is arranged in the file. The data arrangements that result are called screen order and keyboard order.
converts the order of characters in s2 from screen to keyboard order or vice versa and places the result in s1. The arguments s1 and s2
point to strings (arrays of characters terminated by a null character). returns s1.
performs the conversion based on mode information indicated by the argument m. The argument m is of type nl_mode found in the header file
The mode argument can have two possible values: and
If the mode argument is the text orientation is left-to-right, and all non-Latin sub-strings are reversed. Non-Latin sub-strings are any
number of contiguous right-to-left language characters. Non-Latin sub-strings are delimited by ASCII characters.
Similarly, if the mode argument is the text orientation is right-to-left and all Latin sub-strings are reversed. Latin sub-strings are any
number of contiguous printable ASCII characters. Latin sub-strings are delimited by right-to-left language characters and ASCII control
codes.
Some right-to-left languages have a duplicate set of digits called alternative numbers. Alternative numbers always have a left-to-right
orientation.
EXTERNAL INFLUENCES
Locale
The category determines whether a right-to-left language has alternative numbers.
International Code Set Support
Single-byte character code sets are supported.
WARNINGS
does not check for overflow of the array pointed to by s1.
Obsolescent Interfaces
is to be obsoleted at a future date.
AUTHOR
was developed by HP.
SEE ALSO
forder(1), nljust(1), setlocale(3C), environ(5), thread_safety(5).
TO BE OBSOLETED strord(3C)