RW_NO_STL & extended regular expressions

Hi
I wonder if anyone can help me. We are working on a solaris 2.6 and using the SUN Workshop C++ (v5.1) compiler. I'm trying to compile one of the roguewave examples
?/SUNWspro/WS6/examples/Tools.h++/rw/manual/extrgexp.cpp
this is an extended regular expression example. My compile statement is
CC -I/opt/SUNWspro/WS6/include/CC/Cstd -I/opt/SUNWspro/WS6/include/CC/Cstd -o -c extrgexp.o extrgexp.cpp -library=rwtools7,iostream
I get the following error
"/opt/SUNWspro/WS6/include/CC/rw7/rw/re.h", line 184: Warning: #error You must have both Standard Library and exceptions to use this class..
"extrgexp.cpp", line 43: Error: RWCRExpr is not defined.
"extrgexp.cpp", line 43: Error: Cannot use const char* to initialize int.
"extrgexp.cpp", line 45: Error: match is not a member of RWCString.
The 3 error are generated as a result of the warning which results from RW_NO_STL being defined in compiler.h . To get the definition of RWCRExpr requires RW_NO_STL to be undefined. I've read previous threads and these seem to suggest that I needed to use the -compat switch. I have tried this and get the same result so I examined compiler.h, the relevant bit is
#if __SUNPRO_CC == 0x420 || __SUNPRO_CC_COMPAT == 4
# define RW_NO_STL 1
# define RW_NO_TYPENAME 1
# define RW_HEADER_WITH_EXTENSION 1
# define RW_NO_IO_SENTRY 1
# define RW_NO_IOSTD 1
#endif
#if __SUNPRO_CC_COMPAT == 5 || __SUNPRO_CC_COMPAT == 6
# define RW_NO_STL 1
/* # define RW_NO_UNBUFFERED 1 */
/* # define RW_STD_RELOPS_IN_NAMESPACE 1 */
# define RW_NO_IO_SENTRY 1
# define RW_NO_IOSTD 1
#endif
strikes me that whatever compat option I choose RW_NO_STL will be defined. Has anyone had more luck than me on this example
cheers
Gareth

If I read between the lines, it looks like you expect \b to match a blank character, right?
According to man re_format:
the bracket expressions `\[\[:<:\]\]' and `\[\[:>:\]\]' match the null string at the beginning and end of a word respectively.
Therefore, this seems to be what you're after:
sed -E -e 's/\[\[:<:\]\]in/aaa/g' testfile
The same man page states that \[:upper:\] and \[:lower:\] are the appropriate tags for upper and lowercase characters, respectively

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# License: beerware.
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green='\e[0;32m'
GREEN='\e[1;32m'
yellow='\e[0;33m'
YELLOW='\e[1;33m'
blue='\e[0;34m'
BLUE='\e[1;34m'
purple='\e[0;35m'
PURPLE='\e[1;35m'
cyan='\e[0;36m'
CYAN='\e[1;36m'
NC='\e[0m'
# Functions
if [ -f '/etc/profile.d/prll.sh' ]; then
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run_under_tmux() {
# Run $1 under session or attach if such session already exist.
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over_ssh() {
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reload () {
exec "${SHELL}" "$@"
confirm() {
local answer
echo -ne "zsh: sure you want to run '${YELLOW}$@${NC}' [yN]? "
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echo
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confirm_wrapper() {
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confirm "${runcommand}" "$@"
poweroff() { confirm_wrapper --root $0 "$@"; }
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hibernate() { confirm_wrapper --root $0 "$@"; }
detox() {
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command detox "$@"
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has() {
local string="${1}"
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begin_with() {
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termtitle() {
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rxvt*|xterm|nxterm|gnome|screen|screen-*)
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local prompt_char="${(%):-%~}"
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preexec)
printf '\e]0;%s [%s@%s: %s]\a' "$2" "${prompt_user}" "${prompt_host}" "${prompt_char}"
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git_check_if_worktree() {
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git_pwd_is_worktree='false'
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git_check_if_workdir_path="${git_check_if_workdir_path:-/root:/etc}"
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git_check_if_workdir_path="${git_check_if_workdir_path:-/home}"
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autoload -Uz compinit
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root)
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alias rmdir='rmdir -v'
alias ln='ln -v'
alias chmod="chmod -c"
alias chown="chown -c"
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rxvt*|xterm*)
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bindkey "^[[B" history-beginning-search-forward #Down Arrow
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bindkey "^[Od" backward-word # control + left arrow
bindkey "^H" backward-kill-word # control + backspace
bindkey "^[[3^" kill-word # control + delete
linux)
bindkey "^[[1~" beginning-of-line #Home key
bindkey "^[[4~" end-of-line #End key
bindkey "^[[3~" delete-char #Del key
bindkey "^[[A" history-beginning-search-backward
bindkey "^[[B" history-beginning-search-forward
screen|screen-*)
bindkey "^[[1~" beginning-of-line #Home key
bindkey "^[[4~" end-of-line #End key
bindkey "^[[3~" delete-char #Del key
bindkey "^[[A" history-beginning-search-backward #Up Arrow
bindkey "^[[B" history-beginning-search-forward #Down Arrow
bindkey "^[Oc" forward-word # control + right arrow
bindkey "^[Od" backward-word # control + left arrow
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bindkey "^[[3^" kill-word # control + delete
esac
bindkey "^R" history-incremental-pattern-search-backward
bindkey "^S" history-incremental-pattern-search-forward
if [ -f ~/.alert ]; then cat ~/.alert; fi
Thanks for all the help.
Last edited by Shark (2013-05-11 22:32:24)

Raynman wrote:
"This expression doesn't work", "It doesn't work" ...
Could you try being a bit more specific?
Firstly, i am sorry i didn't post the output. I should have know better.
Secondly, chill out.
I have used above regex with grep command. Output from terminal is:
zsh: bad pattern: ^[^#]
In bash it works perfectly.
If i issue "setopt re_match_pcre" i have the same ouput as above.
EDIT: If i issue "unsetopt no_match" it actually works but i have to change the regex from "\^\[^#]" to "\^[^#]" otherwise i get the same output as above. In bash both options work.
Last edited by Shark (2013-05-11 22:07:21)

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thank you for your replies. Well i have still no got over the problem so i am posting my code here and hoping it can get solved
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import org.xml.sax.helpers.*;
import java.io.*;
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 String t=new String(text,start,length);
 boolean flag=false;
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 String w=new String(t);
 pattern = Pattern.compile(w);
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 regex=false;
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 ContentHandler handler=new textextractor();
 parser.setContentHandler(handler);
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 System.err.println(e);
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 <REGEX>write \\d+</REGEX>
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 </RegularExpression>by running the code you can see that write is found,write \\d+ doesn't match write 13 in the string and read[0-9] gives and error.
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 set theDoc to open theAlias
 repeat with thisFunctionName in functionNames
 replace "P2Schedule:" & thisFunctionName using "<a href=\"http://www.p2engine.com/p2schedule/" & thisFunctionName & "\">P2Schedule:" & thisFunctionName & "</a>" searching in text 1 of theDoc options {search mode:literal, starting at top:true, wrap around:false, backwards:false, case sensitive:false, match words:false, extend selection:false}
 end repeat
end tell
(I user TextWrangler to check the syntax, but it should be the same). this loops through a list of function names and changes them.
However, if you need to the regular expressions in applescript, I strongly suggest that you download and install the Satimage osax. it will be significantly faster, and its syntax is somewhat easier than BBEdit's. that would look something like this:
set theAlias to choose file
set fp to open for access theAlias with write permission
set originalText to read fp
--following requires Satimage osax
set revisedText to change "P2Schedule:([^: ]+)" into "<a href=\"http://www.p2engine.com/p2schedule/\\1\">P2Schedule:\\1</a>" in originalText with regexp without case sensitive
write revisedText to fp
close access fp
where I've guessed the ending delimiter is either a space or a colon (change [^: ]+ to capture the correct delimiter, if different, using standard rexexp rules).

Dumbfounded by Scanner processing String using regular expression

I was reading Bruce Eckel's book when I came across something interesting: extending Scanner with regular expressions. Unfortunately, I was confronted with an issue that doesn't make much sense to me: if the String that I am scanning contains a hyphen, the Scanner doesn't produce anything. As soon as I take it out, it all works like a charm. Here is my example:
import java.util.Scanner;
import java.util.regex.*;
public class StringScan {
public static void main (String [] args){
     String input = "there's one caveat when scanning with regular expressions";
     Scanner scanner = new Scanner (input);
     String pattern = "[a-z]\\w+";
     while (scanner.hasNext(pattern)){
          scanner.next(pattern);
          MatchResult match = scanner.match();
          String output = match.group();
          System.out.println(output);
}What could be the reason? I imagined it could be because the hyphen for some reason gets given a special meaning but when I tried escaping it, it still didn't work.

Thanks for your prompt reply.
I have figured out what was wrong with my code, by the way. Since a single quote is not a word character, it does not match w+. And as the very first input token does not match, the scanner stops immediately. I rewrote my regex to "[a-z].*" and now it does work.

Password validation with regular expression

I'm trying to use a regular expression to validate a password. I've tried a number of different regex's that seem to work elsewhere but do not work in HTML DB. This includes a couple that I wrote and that I found on regex web sites. Specifically, I'm trying to validate that a string has:
1. at least one special character
2. at least one numeric character
3. no more than 6 consecutive characters
4. has a length between 8 and 14
Does anyone know why some regular expressions do not work in HTML DB that work elsewhere or has anyone done a regex similar to this in HTML DB.
Thanks!
- Brian

I see, I will use the [0-9] instead. The expression still does not work though. I simplified the expression down to try and figure out what doesn't work and it seems like it's the "?=".
1. I first entered the expression:
([:alnum:]*[0-9])
This expression just says there must be a number and it works fine in HTML DB.
2. I extended it to:
([:alnum:]*[0-9])([:alnum:]*[a-z])
This expression says that there must be a number followed by a letter. In this example "1a" works but "a1" does not.
3. To make it not care about the order I would normally add "?=" like so:
(?=[:alnum:]*[0-9])(?=[:alnum:]*[a-z])
This should work for "a1" or "1a" because the ? says the order doesn't matter. When I try this in HTML DB neither "1a" or "a1" work.
Any ideas?
Thanks
- Brian

Regular expression: check for the presence of special characters.

I have the following requirement:
I need to check for the presence of the following characters in a keyword: @, #, > if any of these characters are present, then they need to be stripped off, before going further. Please let me know the regular expression to check for these characters.

I am trying to extend the same logic for the following characters:
.,?!@#%^&*()-~<>[]{}\+=`©® . here is the code fragment:
Pattern kValidator = Pattern.compile("[\\.,\\\\?!@#%^&*()-~<>[]{}\\+=\\`©®]");
Matcher kMatcher = kValidator.matcher(keyWord);
if (kMatcher.find(0)) {
keyWord = keyWord.replaceAll("[.,\\\\?!@#%^&*()-~<>[]{}\\+=\\`©®]", " ");
}I get the following error. This error is from the weblogic command window. I dont understand these special characters.
Error:
28 Oct 2008 12:27:48 | INFO | SearchController | Exception while fetching search results in controller:Unclosed character class near index
39
[\.,\ΓÇÿ\ΓÇ£?!@#%^&*()-~<>[]{}\+=\`┬⌐┬«]
 ^
java.util.regex.PatternSyntaxException: Unclosed character class near index 39
[\.,\ΓÇÿ\ΓÇ£?!@#%^&*()-~<>[]{}\+=\`┬⌐┬«]
 ^
 at java.util.regex.Pattern.error(Pattern.java:1650)
 at java.util.regex.Pattern.clazz(Pattern.java:2199)
 at java.util.regex.Pattern.sequence(Pattern.java:1727)
 at java.util.regex.Pattern.expr(Pattern.java:1687)
 at java.util.regex.Pattern.compile(Pattern.java:1397)
 at java.util.regex.Pattern.<init>(Pattern.java:1124)
 at java.util.regex.Pattern.compile(Pattern.java:817)

Safari May Not Interpret Regular Expression in Compliance with W3C Standard

We are troubleshooting why some websites are no longer working when rendered with the Safari 2.0.4 browser. The failure begins when client entered data is validated using regular expressions.
We have localized the issue to Safari's not interpretting regular expressions consistently.
For example:
Does the regex \u00e9 match the literal character é? (Validates the regular expression engine understands Unicode escape sequences for extended characters.)? - NO, but it does on IE and FireFox
Does the regex \u0041 match the literal character A? (Validates the regular expression engine understands Unicode escape sequences for ASCII characters.)? - NO, but it does on IE and FireFox
Does the regex é match the literal character é? (Validates the regular expression engine understands literal characters outside the ASCII range – this is against ECMAScript spec.)? - Sometimes, but always on IE and FireFox
Write a Unicode escape sequence to the screen on the client side. (Validates the string parsing and display in the JS engine works.) - Works on all 3
Is escape sequence \u00e9 equivalent to literal character é? (Validates the string functionality in the JS engine works with extended characters.)? Yes on all 3.
Is escape sequence \u0041 equivalent to literal character A? (Validates the string functionality in the JS engine works with ASCII characters.)? Yes on all 3
Does the regex A match the literal character A? (Validates the regular expression engine understands literal characters in the ASCII range – this is ECMAScript spec.)? Yes on all 3
Please help. It's hard for me to believe that the regular expression / javascript interpreter(s) for Safari aren't working as they have in the past - but all roads are pointed that way....
Thank you for your review.
Mac OS X (10.4.7)

We are troubleshooting why some websites are no longer working when rendered with the Safari 2.0.4 browser. The failure begins when client entered data is validated using regular expressions.
We have localized the issue to Safari's not interpretting regular expressions consistently.
For example:
Does the regex \u00e9 match the literal character é? (Validates the regular expression engine understands Unicode escape sequences for extended characters.)? - NO, but it does on IE and FireFox
Does the regex \u0041 match the literal character A? (Validates the regular expression engine understands Unicode escape sequences for ASCII characters.)? - NO, but it does on IE and FireFox
Does the regex é match the literal character é? (Validates the regular expression engine understands literal characters outside the ASCII range – this is against ECMAScript spec.)? - Sometimes, but always on IE and FireFox
Write a Unicode escape sequence to the screen on the client side. (Validates the string parsing and display in the JS engine works.) - Works on all 3
Is escape sequence \u00e9 equivalent to literal character é? (Validates the string functionality in the JS engine works with extended characters.)? Yes on all 3.
Is escape sequence \u0041 equivalent to literal character A? (Validates the string functionality in the JS engine works with ASCII characters.)? Yes on all 3
Does the regex A match the literal character A? (Validates the regular expression engine understands literal characters in the ASCII range – this is ECMAScript spec.)? Yes on all 3
Please help. It's hard for me to believe that the regular expression / javascript interpreter(s) for Safari aren't working as they have in the past - but all roads are pointed that way....
Thank you for your review.
Mac OS X (10.4.7)

Find text Between tags with a Regular Expression

I am trying to find specif text -- table names - within a
<cfquery> tag in all my cfm files. I am using an extend find
function in Homesite (I think Dreamweaver has the same
functionality). This expression works:
<[Cc][fF][qQ][uU][eE][rR][Yy]
[^>]*>[^>]*(EventName|AttendeeName)[^>]*</[Cc][fF][qQ][uU][eE][rR][Yy]>
for find the text EventName or AttendeeName. However, if
there are other cf tags like <cfif> within the
<cfquery>, then the tag/text is not found.
Can anyone help? It is a useful expression to have if you are
trying to transfer applications developed on a windows machine to
a, say, linux machine, and have table name sensititvity issues with
mySql.

quote:
Originally posted by:
Newsgroup User
Thanks for all the help. Comments below.
> Thanks, but it:
> 1) Captures everything between the first and last query
in a script if there
> is more than one cfquery in the script
Oops: sorry. Stick a question mark after the asterisks to
stop the matches
being greedy.
Used this:
<[Cc][fF][qQ][uU][eE][rR][Yy].*?(EventName|AttendeeName)[^>].*?</[Cc][fF][qQ][uU][eE][rR][ Yy]>
and got some finds again with multiple queries and some
errors as mentioned below.
> 2) It produces some regular expression errors in
Homesite.
Can't help you there. Sounds like HS's regex processor is
bung: there's
nothing non-standard or tricky about that regex (which might
cause
compatibility issues; JS vs PERL vs Java, etc).
HS on the whole is bung (IMO). Have you considered using a
text editor
that is... err... *current*? ;-)
No, can you suggest one. Just use HS for years and it does
most of what I want.
What sort of errors is it giving?
Regular expression error No 17. Bad expression format or
internal error.
> The reason for this is I am developing on a windows
machine with mysql and
> want to use the application online on a linux machine
where table names are
> case sensitive. My code was not always faithful to that
since in windows you
> can be sloppy!
Have you seen this:
http://dev.mysql.com/doc/refman/5.0/en/identifier-case-sensitivity.html
It might be a better approach anyhow.
Adam

How to include a forward slash(/) in my regular expression

Hai All,
I am having a regular expression which should accept only A-Z, 0-9, (underscore) and .(period) .
<property name="patterns" value="[A-Z0-9\\._]*" />
Now i need to add /(Forward slash) to this expression.
<property name="patterns" value="[A-Z0-9\\._/]" />
But when i add it it is accepting both Foward slash and Backward slash.
Can someone guide me such that it accepts only A-Z, 0-9, Underscore, period and a Forward slash(/).
Thx in advance..

Looks like you had it right to me.
import java.util.regex.Pattern;
import junit.framework.TestCase;
public class RegexTest extends TestCase{
 public String patternString = "[A-Z0-9\\./]*";
 public void testRegex(){
 Pattern pattern = Pattern.compile(patternString);
 assertTrue(Pattern.matches(patternString, "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"));
 assertFalse(Pattern.matches(patternString, "abc"));
 assertTrue(Pattern.matches(patternString, "24.7"));
 assertTrue(Pattern.matches(patternString, "24/7"));
 assertFalse(Pattern.matches(patternString, "21\\7"));
}It works in my tests.
What happends to this "patterns" property? Where and how are you using it?

Logical AND in Java Regular Expressions

I'm trying to implement logical AND using Java Regular Expressions.
I couldn't figure out how to do it after reading Java docs and textbooks. I can do something like "abc.*def", which means that I'm looking for strings which have "abc", then anything, then "def", but it is not "pure" logical AND - I will not find "def.*abc" this way.
Any ideas, how to do it ?
Baken

First off, looks like you're really talking about an "OR", not an "AND" - you want it to match abc.*def OR def.*abc right? If you tried to match abc.*def AND def.*abc nothing would ever match that, as no string can begin with both "abc" and "def", just like no numeric value can be both 2 and 5.
Anyway, maybe regex isn't the right tool for this job. Can you not simply programmatically match it yourself using String methods? You want it to match if the string "starts with" abc and "ends with" def, or vice-versa. Just write some simple code.

Help in Regular expression

Hello..
I wanted to write a regular expression to match the foll string..
 
 NEW ORLEANS, Louisiana (CNN) 
-- Two years after Hurricane Katrina devastated coastal areas of Louisiana and Mississippi, residents say much of America has forgotten their plight.
 
I tried doing..
Matcher matcher= Pattern.compile(" ([^<^>]+?)", Pattern.CASE_INSENSITIVE).matcher(story);
Its not working...
is there any other soln?

Theres probably a better way to do this but here's a way that works.
import java.util.regex.*;
public class RegexTester{
public static void main(String[] args){
 String text =
 " " +
 " NEW ORLEANS, Louisiana (CNN) " +
 "-- Two years after Hurricane Katrina devastated coastal areas of Louisiana and Mississippi," +
 "residents say much of America has forgotten their plight." +
 " ";
 String regex = ">((?:\\s*[\\S&&[^<>]]+\\s*)*?)<";
 Pattern p = Pattern.compile(regex);
 Matcher m = p.matcher(text);
 while(m.find()){
 System.out.println("Match: '" + m.group(1) + "'");
}

RW_NO_STL & extended regular expressions

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