大约有 7,000 项符合查询结果（耗时：0.0321秒） [XML]
Match whitespace but not newlines
...ac OS (CR), and DOS-ish (CR LF) newline conventions.
No need to take my word for it:
#! /usr/bin/env perl
use strict;
use warnings;
use 5.005; # for qr//
my $ws_not_crlf = qr/[^\S\r\n]/;
for (' ', '\f', '\t', '\r', '\n') {
my $qq = qq["$_"];
printf "%-4s => %s\n", $qq,
(eval $qq)...
How to cat a file containing code?
...put for a command.
The format of here-documents is:
<<[-]word
here-document
delimiter
No parameter expansion, command substitution, arithmetic expansion,
or pathname expansion is performed on word. If any characters in word
are quoted, the delimiter...
memcpy() vs memmove()
...t high-performance implementations are more complicated (involving copying word-size blocks at a time rather than bytes).
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PostgreSQL LIKE query performance variations
...s its own operators and doesn't work for arbitrary strings. It operates on words based on dictionaries and stemming. It does support prefix matching for words, but not with the LIKE operator:
Get partial match from GIN indexed TSVECTOR column
Trigram indexes for LIKE
Install the additional modu...
中文网（自研/维护）拓展 · App Inventor 2 中文网
...：标题。第二个参数：坐标方程式JSON字符串，详见帮助文档。
FlashLight
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Highlight the difference between two strings in PHP
...d the package. This is the same Diff package used by the latest version of Wordpress.
– Basil Musa
Dec 1 '15 at 13:54
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Which is the correct shorthand - “regex” or “regexp” [closed]
...ertainly am, especially because sometimes changing just one character in a word can drastically change its meaning.
13 Answ...
PHP - How to check if a string contains a specific text [duplicate]
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If you need to know if a word exists in a string you can use this. As it is not clear from your question if you just want to know if the variable is a string or not. Where 'word' is the word you are searching in the string.
if (strpos($a,'word') !==...
What platforms have something other than 8-bit char?
...Dec-10 had also 6-bit characters - you could pack 6 of these into a 36-bit word (ex-Dec-10 programmer talking)
– anon
Jan 20 '10 at 14:52
2
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get just the integer from wc in bash
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You can use the cut command to get just the first word of wc's output (which is the line or word count):
lines=`wc -l $f | cut -f1 -d' '`
words=`wc -w $f | cut -f1 -d' '`
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