


XML special characters and spaces, newlines, escape character codes in detail
Regarding how to handle spaces in XAML, MSDN provides a detailed description: http://msdn.microsoft.com/en-us/library/cc189036%28v=VS.95%29. aspx#whitespace
Extract the important points briefly:
Spaces, carriage returns, and tabs are all treated as spaces.
Continuous spaces will be merged into one space. The spaces immediately after
How to preserve spaces
Add the attribute xml:space="preserve" to the element
After setting this attribute, all spaces in the element will be retained, continuous spaces will not be merged, and the two ends will not be trimmed. Space.
One inconvenience of this method is that it will retain all spaces in the element, even if these spaces are generated by code formatting. This means that you cannot use shortcut keys such as ctrl+E, F to organize the code format. Once you accidentally organize it, it will be very troublesome to change it back.
Because XAML supports writing Unicode code directly, this string of code represents a non breaking space.
Complex text
For text with complex formats, it is recommended to use RichTextBox.
Because text elements are divided into block and inline, TextBlock only allows to contain inline, so it is more suitable to display a small amount of text.
If the format is more complex, be careful to use span. The difference between span and run is that span will not inherit the format of the parent element, which is equivalent to resetting the format and is not affected by the format of the parent element.
* Line break
Entering a carriage return in XAML will be treated as a space, and all line breaks must use
In addition, two Runs are adjacent. If they are arranged as follows:
<Run>ab</Run> <Run>cd</Run>
, it will be displayed as:
ab cd
, and a newline character will be automatically added between the two Runs.
If you want to remove the carriage return and display it as abcd, you should write it in one line:
<Run>ab</Run><Run>cd</Run>
* Tab
First of all, there is no tab in XAML, you can only use continuous spaces. replace.
It should be noted that when assigning a string to the Xaml attribute of RichTextBox, continuous spaces will be merged. Therefore, if you want to retain tabs (continuous spaces), you need to perform such a workaround:
private const string TAB = " "; private const string TAB_PLACEHOLDER = "===TAB==="; textBox1.Text = richTextBox1.Xaml; string xaml = richTextBox1.Xaml; xaml = xaml.Replace(TAB, TAB_PLACEHOLDER); richTextBox2.Xaml = xaml; foreach (Block block in richTextBox2.Blocks) { foreach (Inline inline in ((Paragraph)block).Inlines) { ((Run)inline).Text = ((Run)inline).Text.Replace(TAB_PLACEHOLDER, TAB); } }
First use a placeholder to replace the four spaces, so that the spaces will not be merged when assigning values to the xaml attribute of richTextBox.
Then replace this placeholder. When the value is assigned and replaced, it will not be merged.
================================================ ===
XAML is bound by XML rules. For example, XML has special meaning for several special characters, such as &,. If you try to use these values to set the content of an element, you may get an error because the XAML parser assumes you are trying to do something like create nested elements. You can use character entities, such as with >, & with &, "with". Special characters are not an obstacle for you to run XAML. The other is space processing. Spaces, TAB, and Enter keys before and after a string, as well as in the string, will be ignored, leaving only one space. You can use XML:space="preserve" to preserve any spaces, TAB, and Enter keys. Note that these rules only work for XAML, if you set the content in code, any whitespace will be preserved.
Special characters and spaces
The following characters are defined as whitespace characters in [XML]:
Space ()
Tab ()
Enter (
)
Line break ( )
##
The above is the detailed content of XML special characters and spaces, newlines, escape character codes in detail. For more information, please follow other related articles on the PHP Chinese website!

RSS documents work by publishing content updates through XML files, and users subscribe and receive notifications through RSS readers. 1. Content publisher creates and updates RSS documents. 2. The RSS reader regularly accesses and parses XML files. 3. Users browse and read updated content. Example of usage: Subscribe to TechCrunch's RSS feed, just copy the link to the RSS reader.

The steps to build an RSSfeed using XML are as follows: 1. Create the root element and set the version; 2. Add the channel element and its basic information; 3. Add the entry element, including the title, link and description; 4. Convert the XML structure to a string and output it. With these steps, you can create a valid RSSfeed from scratch and enhance its functionality by adding additional elements such as release date and author information.

The steps to create an RSS document are as follows: 1. Write in XML format, with the root element, including the elements. 2. Add, etc. elements to describe channel information. 3. Add elements, each representing a content entry, including,,,,,,,,,,,. 4. Optionally add and elements to enrich the content. 5. Ensure the XML format is correct, use online tools to verify, optimize performance and keep content updated.

The core role of XML in RSS is to provide a standardized and flexible data format. 1. The structure and markup language characteristics of XML make it suitable for data exchange and storage. 2. RSS uses XML to create a standardized format to facilitate content sharing. 3. The application of XML in RSS includes elements that define feed content, such as title and release date. 4. Advantages include standardization and scalability, and challenges include document verbose and strict syntax requirements. 5. Best practices include validating XML validity, keeping it simple, using CDATA, and regularly updating.

RSSfeedsareXMLdocumentsusedforcontentaggregationanddistribution.Totransformthemintoreadablecontent:1)ParsetheXMLusinglibrarieslikefeedparserinPython.2)HandledifferentRSSversionsandpotentialparsingerrors.3)Transformthedataintouser-friendlyformatsliket

JSONFeed is a JSON-based RSS alternative that has its advantages simplicity and ease of use. 1) JSONFeed uses JSON format, which is easy to generate and parse. 2) It supports dynamic generation and is suitable for modern web development. 3) Using JSONFeed can improve content management efficiency and user experience.

How to build, validate and publish RSSfeeds? 1. Build: Use Python scripts to generate RSSfeed, including title, link, description and release date. 2. Verification: Use FeedValidator.org or Python script to check whether RSSfeed complies with RSS2.0 standards. 3. Publish: Upload RSS files to the server, or use Flask to generate and publish RSSfeed dynamically. Through these steps, you can effectively manage and share content.

Methods to ensure the security of XML/RSSfeeds include: 1. Data verification, 2. Encrypted transmission, 3. Access control, 4. Logs and monitoring. These measures protect the integrity and confidentiality of data through network security protocols, data encryption algorithms and access control mechanisms.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Dreamweaver Mac version
Visual web development tools

SublimeText3 English version
Recommended: Win version, supports code prompts!

Notepad++7.3.1
Easy-to-use and free code editor

Atom editor mac version download
The most popular open source editor

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.