Not understanding the license implications of copied source can be very problematic, more so for embedded devices, where onboard software is considered a new and unique copy. These edits are often made hastily, without a full understanding of the original code, allowing for subtler semantic errors.Ĭode can be as easily copied and pasted from online examples or open source projects as it can from internal projects. Such modifications are typically a manual editing process and are thus prone to all of the sorts of human errors that plague any repetitive, manual task. Introduce new errors: After code is copied it’s usually modified to suit its new location.Worse still is that each copied version is usually modified for its specific context, making tracking down the bugs more difficult. Duplicating bugs and security vulnerabilities: The most obvious problem is duplicating the problems inherent in the original code throughout the project.Creating more code moves your code coverage metrics in the wrong direction and increases your testing burden. In addition, the opportunity for collecting and documenting useful, reusable code is lost. Duplicating bugs over and over makes matters worse. Poor reuse: The real cost of developing software is not in the typing of the code, so simply duplicating code does little to increase productivity.Whatever the excuse, there’s plenty of reasons to minimize copying and pasting, for example: This might be due to a lack of motivation for proper re-use and lack of forethought. However, it is common because proper re-use takes extra time and money (in the short term). Most developers would agree that simply copying and pasting code is a poor form of re-use and a bad practice in general. Is Copy and Paste Programming Really a Problem?Ĭopy and Paste: We keep doing it and we know better.The Economics of Static Analysis Tool Usage.Anti-patterns: Cut-And-Paste Programming.In this post, I’m going to show examples of GrammaTech’s CodeSonar detecting tricky copy-paste errors and how this is useful for improving quality and security. However, detecting only those instances of copy-paste that introduce outright errors is much harder, even for an automated tool, and is exceptionally difficult to do manually (for reasons having to do with perceptual psychology). Doing this is not too difficult for an automated tool, even for large programs (though it can be tricky when the copies are modified, as frequently happens). Human programmers can detect some instances of copy-paste manually, at least in fairly small code bases. While the degree to which copy-paste, as a general code construction technique, should be allowed or disallowed is debatable, everyone can agree that errors introduced via inconsistent modifications to copied code are bad. Unfortunately, this practice is fraught with dangers not least of which is duplicating bugs and security defects throughout the system. File is easy customizable ( you can add your tag in secure-paste.Copying and pasting code (“copy-paste”) is a primitive but very common form of software re-use.Activate the plugin through the ‘Plugins’ menu in WordPress and enjoy !.Download and extract this plugin to wp-content/plugins/.Img (allowed attributes: src, alt, class, width, height), P, h1, h2, h3, h4, h5, h6, ol, ul, li, ins, blockquote,Ĭite, code, em, b, i, u, q, strike, strong, br, hr, This plugin will only allow the below HTML tags : If your website users creates content for you and if they copy the content from some other webpages, then in that situation this plugin will be helpful to you to disallowed unnecessary HTML tags. It also prevents users to paste or write disallowed HTML tags in post content. This plugin removes unnecessary HTML tags from post, page and custom post type content before inserting it to your WordPress database. WordPress itself does a job of filtering dangerous code inside your content.īut your users can break your site design without compromising your security by inserting unnecessary HTML tags in post, page or in custom post type.
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