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Escape a string for a sed replace pattern
In my bash script I have an external (received from user) string, which I should use in sed pattern.
14 Answers
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What encoding/code page is cmd.exe using?
...of the program.
However, programs that use Win32 APIs can write UTF-16LE strings directly
to the console with
WriteConsoleW.
This is the only way to get correct output without setting codepages. And
even when using that function, if a string is not in the UTF-16LE encoding
to begin with, a Win32 p...
How to check type of variable in Java?
...trary type that is not defined in your Typetester class - in this instance String, for example?
– Tash Pemhiwa
Oct 7 '13 at 14:16
7
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How do I handle newlines in JSON?
..." : 1, "stack" : "sometext\\n\\n"}';
(You need to escape the "\" in your string (turning it into a double-"\"), otherwise it will become a newline in the JSON source, not the JSON data.)
share
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i...
How to pattern match using regular expression in Scala?
...work. This is because match-case uses unapplySeq(target: Any): Option[List[String]], which returns the matching groups.
– rakensi
Dec 16 '13 at 13:01
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Getting only response header from HTTP POST using curl
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The Following command displays extra informations
curl -X POST http://httpbin.org/post -v > /dev/null
You can ask server to send just HEAD, instead of full response
curl -X HEAD -I http://httpbin.org/
Note: In some cases, server may send different...
Immutability of Strings in Java
...bject, it's a reference to an object. "Hello" and "Help!" are two distinct String objects. Thus, str points to a string. You can change what it points to, but not that which it points at.
Take this code, for example:
String s1 = "Hello";
String s2 = s1;
// s1 and s2 now point at the same string - "H...
How to do a regular expression replace in MySQL?
... pat, repl[, pos[, occurrence[, match_type]]])
Replaces occurrences in the string expr that match the regular expression specified by the pattern pat with the replacement string repl, and returns the resulting string. If expr, pat, or repl is NULL, the return value is NULL.
and Regular expression s...
How can I use “sizeof” in a preprocessor macro?
...ou can use following macro:
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
Usage:
BUILD_BUG_ON( sizeof(someThing) != PAGE_SIZE );
This article explains in details why it works.
3. MS-specific
On Microsoft C++ compiler you can use C_ASSERT macro (requires #include &...
Using Regex to generate Strings rather than match them
...ance testing. It would be really cool to be able to specify a regex for Strings so that my generator spits out things which match this. Is there something out there already baked which I can use to do this? Or is there a library which gets me most of the way there?
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