replace | 易学教程

BASH: recursive program to replace text in a tree of files

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问题 I am completely new at Bash but I just can't seem to find a way to make it do what I want. Imagine you have a tree directory with 2 files: /top.php and /test/bottom.php How do I make my function look and replace say "hello" into "bonjour" in /top.php AND in /test/bottom.php? So far the only way I have found to do this is by calling the same function twice with a different depth level: find ./*.php -type f -exec sed -i 's/hello/bonjour/' {} \; find ./*/*.php -type f -exec sed -i 's/hello

BASH: recursive program to replace text in a tree of files

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Faster alternatives to replace method in a Java String?

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问题 The fact that the replace method returns a string object rather than replacing the contents of a given string is a little obtuse (but understandable when you know that strings are immutable in Java). I am taking a major performance hit by using a deeply nested replace in some code. Is there something I can replace it with that would make it faster? 回答1: This is what StringBuilder is meant for. If you're going to be doing a lot of manipulation, do it on a StringBuilder , then turn that into a

c# Fastest way to remove extra white spaces

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问题 What is the fastest way to replace extra white spaces to one white space? e.g. from foo bar to foo bar 回答1: The fastest way? Iterate over the string and build a second copy in a StringBuilder character by character, only copying one space for each group of spaces. The easier to type Replace variants will create a bucket load of extra strings (or waste time building the regex DFA). Edit with comparison results: Using http://ideone.com/NV6EzU, with n=50 (had to reduce it on ideone because it

mysql替换汉字为空

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转自： https://blog.51cto.com/4925054/2058559 onvert(xxx using ascii), 所有汉字变成问号？了再用replace将？转换为空字符串。 UPDATE pro99.b_common_product_data_pdf set brand =replace(convert(brand using ascii),'?','') 来源： CSDN 作者： vigel1990 链接： https://blog.csdn.net/c1052981766/article/details/103895585

convert string that contains <,> (Special chars) to html

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问题 I have a string that is, <some text> I'm trying to highlight the "te" in it, using replace function InnerHTML = innerHTML.replace(some_Regex_Pattern['te'], '$&'); The string I obtain is, <some text> Now setting this to element.innerHTML, is considered as an HTML tag, causing problem. In DOM I get the element as <some <span class=\'highlight\' style=\'background-color:#FFFB00\'

convert string that contains <,> (Special chars) to html

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easypoi导入Excel最佳实践

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前言本文原文链接地址：http://nullpointer.pw/easypoi%E5%AF%BC%E5%85%A5Excel%E6%9C%80%E4%BD%B3%E5%AE%9E%E8%B7%B5.html 一直以来，使用EasyPOI做了不少导入导出的需求，但是每次做完都是临时去看官方文档现学现用，正巧最近朋友遇到这么个需求，用到了EasyPOI来完成导入，我也正好整理整理EasyPOI的导入用法。本文原文链接地址：http://nullpointer.pw/easypoi%E5%AF%BC%E5%85%A5Excel%E6%9C%80%E4%BD%B3%E5%AE%9E%E8%B7%B5.html 需求是这样的：现在要在后台导入用户的简历，简历的格式是这样子的：一个人有多个属性，某些属性如申请职位、薪资是单一属性，即只会有一个值；某些属性如工作经历、教育经历、获奖情况是一组属性，可能会有多组值。现在要将这批简历数据导入到库中。零、文件准备：示例Excel以及示例Excel2 加入 EasyPOI 的依赖 <dependency> <groupId>cn.afterturn</groupId> <artifactId>easypoi-web</artifactId> <version>3.2.0</version> </dependency> 一

replace NA in an R vector with adjacent values

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问题 I have a dataframe which has merged player and team data for soccer seasons So for a particular player in a specific season I have data like df <- data.frame(team=c(NA,"CRP",NA,"CRP","CRP",NA), player=c(NA,"Ed",NA,"Ed","Ed",NA), playerGame= c(NA,1,NA,2,3,NA), teamGame =c(1,2,3,4,5,6)) Where the NA's indicate that the player did not appear in that specific team game How would I most efficiently replace the team and player NA's with "CRP" and "Ed" respectively and have a plGame output of, in

exclude html attributes in str_replace

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问题 so i'm trying to do the usual replacing each instance of a company name in wordpress, and i've run into an issue where on occasion (usually in the href of links) it's breaking links. code i'm using (includes a filter for ACF custom fields) //Replace the word lunch with a span function replace_text_wps($text){ $replace = array( // 'WORD TO REPLACE' => 'REPLACE WORD WITH THIS' 'lunch!' => 'lunch!', 'Lunch!' => 'lunch!', 'LUNCH!' => '<span