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Regex lookahead, lookbehind and atomic groups
...tive or negative) and discards the matched portion. They don't consume any character - the matching for regex following them (if any), will start at the same cursor position.
Read regular-expression.info for more details.
Positive lookahead:
Syntax:
(?=REGEX_1)REGEX_2
Match only if REGEX_...
How to check Oracle database for long running queries
...ions, nothing will show up.
COLUMN percent FORMAT 999.99
SELECT sid, to_char(start_time,'hh24:mi:ss') stime,
message,( sofar/totalwork)* 100 percent
FROM v$session_longops
WHERE sofar/totalwork < 1
/
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C++ catching all exceptions
... { ... }
Which will allow you do use e.what(), which will return a const char*, which can tell you more about the exception itself. This is the construct that resembles the Java construct, you asked about, the most.
This will not help you if someone is stupid enough to throw an exception that doe...
Word-wrap in an HTML table
...uld potentially preprocess the text and wrap only long words (say, > 40 chars) in the <span>.
– nornagon
Jun 2 '11 at 8:30
9
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Repeat string to certain length
... to compute the number of full repetitions needed, and the number of extra characters, all at once:
def pillmod_repeat_to_length(s, wanted):
a, b = divmod(wanted, len(s))
return s * a + s[:b]
Which is better? Let's benchmark it:
>>> import timeit
>>> timeit.repeat('sche...
How can I find the latitude and longitude from address?
... while ((b = stream.read()) != -1) {
stringBuilder.append((char) b);
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
JSONObject jsonObject = new JSONObject();
try {
jsonObject = new JSONObject(string...
Find duplicate lines in a file and count how many time each line was duplicated?
...onment:
tr -s ' ' '\n' < yourfile | sort | uniq -d -c
^--space char
Basically: convert all space characters to linebreaks, then sort the tranlsated output and feed that to uniq and count duplicate lines.
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Where does Console.WriteLine go in ASP.NET?
...ass DebugTextWriter : System.IO.TextWriter {
public override void Write(char[] buffer, int index, int count) {
System.Diagnostics.Debug.Write(new String(buffer, index, count));
}
public override void Write(string value) {
System.Diagnostics.Debug.Write(value);
}
public...
Store boolean value in SQLite
...sh, season premiere. So 7 bits, or an integer with a maximum of 127. One character really.
A C example from what I'm working on now. has() is a function that returns 1 if the 2nd string is in the first one. inp is the input string to this function. misc is an unsigned char initialized to 0.
i...
How do I get the color from a hexadecimal color code using .NET?
...n error checking (colorcode should be a hexadecimal value of either 6 or 8 characters)
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