prepend

Haskell pattern matching conundrum

由 萝らか妹 提交于 2019-12-11 09:44:33
问题 I was trying to search through a list of pairs that could have the element ("$", Undefined) in it at some arbitrary location. I wanted to ONLY search the part of the list in front of that special element, so I tried something like this (alreadyThere is intended to take the element n and the list xs as arguments): checkNotSameScope :: Env -> VarName -> Expr -> Expr checkNotSameScope (xs:("$", Undefined):_) n e = if alreadyThere n xs then BoolLit False else BoolLit True But that does not work;

How do I prepend to a stream in Bash?

由 ↘锁芯ラ 提交于 2019-12-10 20:34:20
问题 Suppose I have the following command in bash: one | two one runs for a long time producing a stream of output and two performs a quick operation on each line of that stream, but two doesn't work at all unless the first value it reads tells it how many values to read per line. one does not output that value, but I know what it is in advance (let's say it's 15 ). I want to send a 15\n through the pipe before the output of one . I do not want to modify one or two . My first thought was to do:

Is there a file system with a low level prepend operation?

由 旧城冷巷雨未停 提交于 2019-12-10 20:34:10
问题 At the lowest levels most OS file operations include open, close, read, write, delete and seek and append operation, yet there is no prepend operation. The question came up because a colleague of mine was working with a large (multi-gigabyte) data log he had generated and he realized he had not written the a file header to the log file. Even though he only needed to add a hundred bytes to the front of the file, we couldn't see any way to do that without getting into the block / sector file

Find text in a string and prependTo somewhere else

由 心不动则不痛 提交于 2019-12-10 17:50:38
问题 I am trying to find some text RegEx /\w*http:[/][/]bit.ly[/]\w*/ig that will find this string and pull it out, moving it to the <span> tag, or at the end of the <p> tag? <p class="regex">Text before http://bit.ly/wtGAhsu sometext here, doesn't matter how long this is.... <span></span></p> $("p:regex('(\w*http:[/][/]bit.ly[/]\w*)')").addClass('active'); Above is what I have so far (just selecting the p), I've tried .highlight() but Im not sure now to grab the text and move it, any help is much

Apache or PHP generating prepending line feed character

由 a 夏天 提交于 2019-12-10 15:33:32
问题 I am trying to generate an XML file in a PHP web application: <?php ... header('Content-Type: application/xml'); header('Content-Disposition: attachment; filename=test.xml'); echo "<?xml version=\"1.0\"?>\r\n" . ... Bizarrely, when using my servers (PHP Version 5.3.8/Apache 2.2.17 and PHP Version 5.3.10-1/Apache 2.2.22 respectively) a line feed (hex 0a ) character is inserted in the beginning of the output , resulting in invalid XML that cannot be used. There's one more online question about

Is it possible to add some code to existing javascript functions without modify original code? [duplicate]

由 会有一股神秘感。 提交于 2019-12-10 11:33:32
问题 This question already has answers here : Adding code to a javascript function programmatically (6 answers) Closed 6 years ago . There is some javascript code, e.g. function hello() { } function world() { } I want to add some logging code to them, but I don't want to modify the code. I hope I can write some code in another file, and it will modify the functions at runtime. It is possible to do this? Update Thanks for the two answers, but I have to make this question clearer. The hello and

error_log in the same directory as included files?

由 陌路散爱 提交于 2019-12-07 12:59:53
问题 I've researched different methods and directives including: auto_prepend_file .user.ini files getcwd() debug_backtrace() And I can't seem to find a way to change the path of the error_log to log in the same path as the file being included/required. For example, say index.php has the line: include('subdir/file.php'); If subdir/file.php has a syntax error, forcing php to create subdir/error_log , rather than the default behavior of creating error_log in the same path as index.php , auto_prepend

Is it possible to add some code to existing javascript functions without modify original code? [duplicate]

由 我怕爱的太早我们不能终老 提交于 2019-12-06 08:52:59
This question already has answers here : Adding code to a javascript function programmatically (6 answers) Closed 6 years ago . There is some javascript code, e.g. function hello() { } function world() { } I want to add some logging code to them, but I don't want to modify the code. I hope I can write some code in another file, and it will modify the functions at runtime. It is possible to do this? Update Thanks for the two answers, but I have to make this question clearer. The hello and world functions are just some samples, actually there are hundreds of functions in the file, it's implement

How to get next element using JavaScript-only?

由 我们两清 提交于 2019-12-05 22:56:45
问题 Let's say we have this markup: <!DOCTYPE html> <html> <head> <meta charset="utf8" /> <title>project.js</title> <script src="project.js"></script> <script> </script> </head> <body> <h1>some project — javascript & html tests</h1> <hr /> <p> testing 123 </p> </body> </html> I know that there are .prependChild() , .appendChild() , .innerHTML , etc, properties and methods, but what I am looking for is how to add (append) contents after the </body> tag closure? I need this, without using jQuery —

rails prepend_view_path of mountable engine

由 你离开我真会死。 提交于 2019-12-04 11:33:50
In one hand, I have a mountable engine let's say Front Front contain my assets and couple of pages It's isolated from MainApp. I don't want it to touch the main app. In the other hand I want my MainApp using layout and partial of the Front. So I setup the layout this way : class ApplicationController < ActionController::Base layout 'front/application' end But the front/application refer to engine partial directly, because of isolation, like this render 'header' # front/ prefix is not required So the MainApp views try to load app/views/application/header instead of app/views/front/application
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