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Using a template chain in Mako is best explained with an example. The following is a base template named base.html, which defines some HTML and a footer but also has two defs, self.title() and self.body(). Save this template as base.html in templatedemo/templates: <html> <head> <title>${self.title()}</title> </head> <body> ${self.body()} <div class="footer"> <p>This is a simple page footer</p> </div> </body> </html> Let s modify the greeting example to use this template. Let s ignore the namespace code you added earlier in the chapter for the minute and just concentrate on inheriting the base template. Here s how it looks: <%inherit file="/base.html"/>\ <%def name="title()">Greetings</%def> <h1>Greetings</h1> <p>${c.greeting} ${c.name}!</p> Save this new version of greeting.html. The index() action of the greeting controller should still look like this: def index(self): c.greeting = h.literal('<b>Welcome</b>') c.name = request.params.get('name', 'Visitor') return render('/greeting.html') If you visit http://localhost:5000/greeting/index in your browser again, you will see the following HTML rendered: <html> <head> <title>Greetings</title> </head> <body> <h1>Greetings</h1> <p><b>Welcome</b> Visitor!</p> <div class="footer"> <p>This is a simple page footer</p> </div> </body> </html>

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The configuration for the default implementation is: <barcode> < upc-a > <height>{ length:15mm}</height> <module-width>{length:0.33mm}</module-width> ...

Being able to handle the system s decimal point character is very important. Different keyboards have Tip different characters for the decimal point on the numeric keypad. It can be very annoying to have to move between the numeric keypad and the main keypad to write a decimal point.

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UPC-A is also known as Universal Product Code version A, UPC-A Supplement 5/Five-digit Add-On, UPC-A Supplement 2/Two-digit Add-On, UPC-A +5, ...

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Let s think about what is going on to produce this HTML. Because greeting.html inherits from the base.html control for rendering passes directly to the base.html body() def. The <html> line is rendered first, followed by all the other characters until ${self.title()} is called. In the context of rendering a normal template, self would refer to the template itself, but in the context of an inheritance chain like this one, self always refers to the template at the bottom of the inheritance chain, which is always the template that was originally specified in the call to render(), in this case, greeting.html. This means that although you are rendering the base.html body() def, ${self.title()} refers to the title() def in greeting.html. This renders the Greeting text, which appears in the page title. Once the title is rendered, control passes back to the base.html template, and more HTML is rendered until ${self.body()} is reached. Once again, self refers to greeting.html, so the body() def of greeting.html is rendered. Finally, control passes back to base.html to render the footer, and the whole page is rendered. As you can imagine, being able to structure your templates like this is really useful because it means you can now create multiple templates based on base.html without having to duplicate its content in each child template. By using defs in the way you used title(), you can create regions that can be replaced in child templates. These don t just have to contain static text; they can also contain navigation elements, CSS, JavaScript, section headings, or any other content you like. When you start the SimpleSite tutorial, you ll use inheritance chains to create a full-featured site.

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racca3141/UPC: Build a UPC-A label. - GitHub
27 Apr 2018 ... UPCMain . java is a command line program that takes in a 12 digit number and checks to see if it is a valid UPC-A barcode. It does this by ...

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We must note that if our application is vulnerable to an XSS attack, the action token scheme becomes ineffective. The attacker can inject script that steals both the user s cookies and corresponding action tokens, or directly fills out forms and submits requests from within the context of the user s session, including the expected action tokens.

Use the QLocale class and its method toString to convert numbers into text; use toFloat, toInt, and so on to convert strings to numbers. Although this works for handling numbers and strings shown to the user, remember to stick to one format when storing numbers as text in files because the files can be moved between different countries (and you still have to be able to read the numbers correctly, regardless of the current locale).

If you are following the Mako documentation, you should be aware that Mako describes the template at the top of the chain (base.html in our example) as being the bottom-most template and the template at the bottom as being the top-most template, so you need to be aware of the slightly confusing terminology.

In the previous example, you used the self namespace to effectively mean use the def from the template furthest down the inheritance chain. Mako also provides two related namespaces called next and parent, which are especially useful if you have more than two templates involved in an inheritance chain.

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Barcode4J is a free and flexible Java library for Barcode generation. This requires the ... in classpath. The following example shows generating UPC-A Barcode.

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UPC-A barcode generator can print UPC-A and saved it as GIF and JPEG images using Java class library. Generated UPC-A barcode images can be displayed ...

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