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Use Match Group \g&lt;n&gt; in Replacement
How to how to use matched string and groups in replacements with re.sub()? When calling the re.sub() function, you can use matched string and groups in replacements with the following escape sequences: \g&lt;0&gt; # represents the matched string \g&lt;1&gt; # represents the first gro...
2018-10-13, 1090👍, 0💬

3Pigs5-3.0.epub - Title Page and TOC
How to add a title page and a table of content page to my EPUB book? If you want to add a title page and a table of content page to your EPUB 3.1 book, you can follow this tutorial. 1. Create a title page in an XHTML file like Title-Page.xhtml: &lt;?xml version="1.0" encoding="utf-8"?&gt; &a...
2018-08-14, 1088👍, 0💬

HTML Definition List 'dl' Tag/Element
What Is a "dl" Tag/Element? A "dl" element is block level element that can be used to define a definition list, where items are displayed with leading terms. Here are basic rules about "dl" elements: "dl" elements are block level elements. "dl" elements can not have text contents. An "dl" element mu...
2017-05-29, 1086👍, 0💬

3Pigs4-3.1.epub - Cover Image and Page
How to add a cover image to my EPUB books If you want to add a cover image to your EPUB 3.1 book, you should consider to two related components: Cover Image - An image file that is specified as the Cover Image of the book. Cover Page - An XHTML content file that is displayed as part of the book cont...
2018-12-26, 1084👍, 0💬

re.split() - Splits with Regular Expression
How to split a given string with a regular expression as the delimiter using re.split()? The re.split() function allows you to split a given target string using matches of a given regular expression as the delimiter. import re l = re.split(pattern, string, maxsplit=0, flags=0) Where: pattern is the ...
2018-10-13, 1081👍, 0💬

Order of Array Values in PHP
How the Values Are Ordered in an Array in PHP? PHP says that an array is an ordered map. But how the values are ordered in an array? The answer is simple. Values are stored in the same order as they are inserted like a queue. If you want to reorder them differently, you need to use a sort function. ...
2017-01-29, 1081👍, 0💬

WPF App with VC# and XAML in Visual Studio 2017
How to build a WPF application with VC# and XAML in Visual Studio 2017? If you want to build a WPF (Windows Presentation Foundation) application with VC# and XAML in Visual Studio 2017, you can follow this tutorial 1. Start Visual Studio 2017 with .NET development environment. 2. Click "File &gt...
2017-08-13, 1074👍, 0💬

Downloading and Installing PHP
Where to find tutorials in downloading and installing PHP binary version for Windows system. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team in downloading and installing PHP binary version for Windows system. Installing PHP for Windows Verifying ...
2016-10-13, 1074👍, 0💬

'@...' Function Decorators
What are function decorators in Python? A function decorator is shorthand notation to replace a function with a new version transformed by a wrapper function. A function decorator can be specified using the following syntax: @decorator_wrapper_function def func(): ... Above Python code is actually e...
2018-05-08, 1066👍, 0💬

HTTP POST with urllib.request
How to send an HTTP POST request with urllib.request? I want to submit a form to a Website. To submit a form to a Website, you can use the urllib.request.urlopen() function with two arguments: r = urllib.request.urlopen(url, data) where: url can be a URL string or Request object data is request body...
2018-09-13, 1063👍, 0💬

3Pigs2-3.1.epub - Multiple XHTML Files
Can I divide the book content into multiple XHTML files? Yes, you can divide the book content into multiple XHTML files. If your has multiple chapters, you should consider to create one XHTML file per chapter. For example, you can download this EPUB book, 3Pigs2-3.1.epub, which has "The Three Little...
2019-01-12, 1060👍, 0💬

EPUB 3.0 Metadata - dc:subject Element
What is EPUB 3.0 Metadata "dc:subject" Element? EPUB 3.0 Metadata "dc:subject" is an optional metadata element to specify the subject category of the EPUB 3.0 book. When using "dc:subject" metadata element, you should follow an industry standard like: BISAC (Book Industry Standards And Communication...
2018-04-28, 1060👍, 0💬

EPUB Validator - epubcheck.jar
Where to find tutorials on EPUB Validator - epubcheck.jar? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on EPUB Validator - epubcheck.jar. What Is epubcheck.jar Validate EPUB 3.0 Book with EpubCheck 4.0.2 Validate EPUB 3.1 Book with EpubCheck 4...
2018-06-06, 1052👍, 0💬

Real Atom XML Examples
Where to get a real Atom XML example? You can follow this tutorial to get a real Atom XML example: 1. Go to FYIcenter.com Developer Website. 2. Scroll to the bottom and click the "Atom" link. You see an Atom XML document displayed as an XML tree or as new feeds depending on the Web browser you are u...
2017-12-26, 1048👍, 0💬

EpubCheck 4.0.2 --json Option
What is EpubCheck 4.0.2 "--json" Option? EpubCheck 4.0.2 "--json" option allows you to generate a JSON output file containing all properties of the EPUB book. You can try it on Hello-3.0.epub: \fyicenter&gt;java -jar epubcheck-4.0.2\epubcheck.jar --json Hello.json Hello-3.0.epub No errors or war...
2018-11-17, 1047👍, 0💬

Atom Element Types: "feed" and "entry"
What are main Atom element types? There are 2 main element types defined for Atom feed files: Atom Feed Element - Representing an Atom feed, including metadata about the feed, and some or all of the entries associated with it. Its root element is the &lt;feed&gt; element. Atom Entry Element ...
2017-12-09, 1043👍, 0💬

EPUB 3.0 Metadata - dc:language Element
What is EPUB 3.0 Metadata "dc:language" Element? EPUB 3.0 Metadata "dc:language" is a required metadata element to specify the primary language of the EPUB 3.0 book. When using "dc:language" metadata element, you should the an ISO 639 language code to specify the language. For example, the following...
2018-05-19, 1042👍, 0💬

RSS "channel/textInput" Element
What is the RSS "channel/textInput" element? The RSS "channel/textInput" element is an optional sub element of the "channel" element to specify a text input box that can be used to send data back to the channel. The RSS "channel/textInput" element contains the following sub elements. title - REQUIRE...
2017-11-11, 1041👍, 0💬

Finding a Given Value in an Array in PHP
How To Find a Specific Value in an Array in PHP? There are two functions can be used to test if a value is defined in an array or not: array_search($value, $array) - Returns the first key of the matching value in the array, if found. Otherwise, it returns false. in_array($value, $array) - Returns tr...
2017-01-21, 1041👍, 0💬

View EPUB 3.0 Metadata List with Calibre
How to see more EPUB 3.0 metadata list with Calibre? You can follow this tutorial to view EPUB 3.0 metadata list with Calibre. 1. Click Row-Your-Boat-3.0.epub to download this sample EPUB 3.0 book. 2. Add Row-Your-Boat-3.0.epub to Calibre book library. You see some EPUB 3.0 metadata displayed below ...
2018-04-28, 1040👍, 0💬

Adding Claims in Azure AD v2 id_token
How to include additional claims in Azure AD v2.0 id_tokens? If you want to include additional claims in Azure AD v2.0 id_tokens, you need to modify your application registration in Azure AD. 1. Log in the Azure portal. 2. Select the Azure Active Directory service, and then select App registrations ...
2019-03-27, 1035👍, 0💬

Installing 'requests' Module
How to install "requests" module? I am getting the "ModuleNotFoundError: No module named 'requests'" error. If you are getting the following error when running "import requests", you need to follow this tutorial to install the "requests" module. C:\fyicenter&gt;python Python 3.6.2 (v3.6.2:5fd33b...
2018-09-01, 1032👍, 0💬

Atom Better than RSS
Should I use Atom or RSS? Which one is better? At a higher level, Atom and RSS are doing the job, offering a format for Websites to publish their news feeds. But if you take a closer look, Atom does a better job than RSS in several areas. For example: Atom has better date format - Atom uses the ISO ...
2017-09-28, 1031👍, 0💬

EPUB 3.0 Metadata - dc:identifier Element
What is EPUB 3.0 Metadata "dc:identifier" Element? EPUB 3.0 Metadata "dc:identifier" is a required metadata element to specify a code that uniquely identifies the EPUB 3.0 book. To use "dc:identifier" properly, you need to meet the following two requirements: 1. &lt;package unique-identifier="bo...
2018-06-01, 1029👍, 0💬

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