Im sure of paper.path("path string") .But some examples use path method with no arguments.
I looked into the docs paper.path, its saying the path string is optional, but it hasn't said what happens when there is no path string.
You're correct that it allows empty paths. The definition from W3C is:
svg-path:
wsp* moveto-drawto-command-groups? wsp*
allowing any amount of white space surrounding zero or one of the moveto/drawto command groups.
From that W3C documentation page:
Note that the BNF allows the path ‘d’ attribute to be empty. This is not an error, instead it disables rendering of the path.
In other words, it's a path with no elements in it. Without this, you'd probably have to have some kludge like m 0 0 if you wanted a path to do nothing.
Related
I have different commands my program is reading in (i.e., print, count, min, max, etc.). These words can also include a number at the end of them (i.e., print3, count1, min2, max6, etc.). I'm trying to figure out a way to extract the command and the number so that I can use both in my code.
I'm struggling to figure out a way to find the last element in the string in order to extract it, in Smalltalk.
You didn't told which incarnation of Smalltalk you use, so I will explain what I would do in Pharo, that is the one I'm familiar with.
As someone that is playing with Pharo a few months at most, I can tell you the sheer amount of classes and methods available can feel overpowering at first, but the environment actually makes easy to find things. For example, when you know the exact input and output you want, but doesn't know if a method already exists somewhere, or its name, the Finder actually allow you to search by giving a example. You can open it in the world menu, as shown bellow:
By default it seeks selectors (method names) matching your input terms:
But this default is not what we need right now, so you must change the option in the upper right box to "Examples", and type in the search field a example of the input, followed by the output you want, both separated by a ".". The input example I used was the string 'max6', followed by the desired result, the number 6. Pharo then gives me a list of methods that match that:
To get what would return us the text part, you can make a new search, changing the example output from number 6 to the string 'max':
Fortunately there is several built-in methods matching the description of your problem.
There are more elegant ways, I suppose, but you can make use of the fact that String>>#asNumber only parses the part it can recognize. So you can do
'print31' reversed asNumber asString reversed asNumber
to give you 31. That only works if there actually is a number at the end.
This is one of those cases where we can presume the input data has a specific form, ie, the only numbers appear at the end of the string, and you want all those numbers. In that case it's not too hard to do, really, just:
numText := 'Kalahari78' select: [ :each | each isDigit ].
num := numText asInteger. "78"
To get the rest of the string without the digits, you can just use this:
'Kalahari78' withoutTrailingDigits. "Kalahari"6
As some of the Pharo "OGs" pointed out, you can take a look at the String class (just type CMD-Return, type in String, hit Return) and you will find an amazing number of methods for all kinds of things. Usually you can get some ideas from those. But then there are times when you really just need an answer!
I have inherited a cookbook that sets some attributes in the ./attributes/default.rb file as per normal.
However, we have a problem with one of the lines is, which is:
default["obscured"]["mysql"] = "#{node['jboss']['jboss_home']}/modules/com/mysql/jdbc/main"
When run, it write this into the node as:
{}/com/mysql/jdbc/main
I can confirm that the node['jboss']['jboss_home'] attribute exists and has correct values.
So, I cannot see any problem with the above, except that every other declaration of this type in our cookbooks has single quotes on the attribute to be set (i.e. left side), not double quotes. I haven't heard this of as being an issue before, but I am pretty new to chef.
Is there any rule that says they must be single quotes?
The answer is that there is no rule.
Using double-quotes in something like this is completely fine:
default["obscured"]["mysql"] = blah blah
The reason I know that is that I just found one being set, with double quotes, that actually works. :-)
What you have there is fine, how are you confirming the value of node['jboss']['jboss_home'] and how are you using it in the template?
In Ruby single and double quoted literals both become Strings but single quotes are relatively literal while double quotes allow backslash escapes and #{} interpolation.
You are most likely hitting the derived attributes problem:
https://coderanger.net/derived-attributes/
The attribute code in your cookbook is getting parsed before the jboss_home attribute is being set. One way or another the solution is to move the interpolation into recipe code.
You could just use a plain old ruby variable instead of the attribute you are trying to construct -- particularly if nothing else in your system ever sets that attribute.
You also should be able to delete the declaration from your attributes file and use this in recipe code as well:
node.default_unless["obscured"]["mysql"] =
"#{node['jboss']['jboss_home']}/modules/com/mysql/jdbc/main"
Although you need to place that statement early in your run_list, before you ever use node["obscured"]["mysql"] as an argument to any resource.
I am trying to do an XSL transform on an xml structure in a bpel assignment statement. There is a syntax problem, but I am having trouble finding official documentation. There are examples all over the internet but I have not found a clear explanation. Here is my best shot. What do the last two parameters do? Why is eclipse saying the first argument must be a literal, even though test3.xsl is a string?
<bpel:assign validate="yes" name="Assign">
<bpel:copy keepSrcElementName="no">
<bpel:from>
<![CDATA[bpel:doXslTransform("test3.xsl", $personalInfoServiceOutput.parameters), "middle", $positionSkillManagementInput]]>
</bpel:from>
<bpel:to variable="positionSkillManagementInput"></bpel:to>
</bpel:copy>
</bpel:assign>
The signature of doXSLTransform looks as follows:
object bpel:doXslTransform(string, node-set, (string, object)*)
The first parameter is the name of the XSLT script, the second parameter is an XPath identifying the source document (e.g. a variable, part, nodeset, node). The third and the fourth parameter is a key-value pair, the string is the key and the object is the value. Those pairs are mapped into the script's parameter context so that you can access these values by their name in the script. There can be any number of these pairs.
The best resource to look up such things is the WS-BPEL 2.0 specification, doXSLTransform is described in Sect. 8.4
When I use the following code :
<bpel:copy keepSrcElementName="no">
<bpel:from>
<![CDATA[bpel:doXslTransform("parseSample.xsl", $output.payload)]]>
</bpel:from>
<bpel:to variable="output"></bpel:to>
</bpel:copy>
I also get the error, that first argument must be literal string.
But, when I deploy my service (with error) to wso2 bps, it works fine.
You can try with this.
I faced the same issue. Agree with NGoyal. Shows error in BPEL but works when deployed.
What is the difference (if any) between path.normalize(your_path) and path.resolve(your_path)?
I know path.resolve(...) can accept multiple arguments, but is the behavior with a single argument the same as calling path.normalize()?
EDIT: If they are supposed to behave the same way, I don't understand the purpose of exposing the path.normalize(...) function when you can simply pass the path into path.resolve(...) Or, maybe, it's for documentation purposes. For example, they say in the documentation for path.resolve(...):
... The resulting path is normalized, and ...
Exposing the path.normalize(...) makes it easier to explain what "normalized" means? I don't know.
path.normalize gets rid of the extra ., .., etc. in the path. path.resolve resolves a path into an absolute path. Example (my current working directory was /Users/mtilley/src/testing):
> path.normalize('../../src/../src/node')
'../../src/node'
> path.resolve('../../src/../src/node')
'/Users/mtilley/src/node'
In other words, path.normalize is "What is the shortest path I can take that will take me to the same place as the input", while path.resolve is "What is my destination if I take this path."
Note however that path.normalize() is much more context-independent than path.resolve(). Had path.normalize() been context-dependent (i.e. if it had taken into consideration the current working directory), the result in the example above would've been ../node, because that's the shortest path one could take from /Users/mtilley/src/testing to /Users/mtilley/src/node.
Ironically, this means that path.resolve() produces a relative path in absolute terms (you could execute it anywhere, and it would produce the same result), whereas path.normalize() produces an absolute path in relative terms (you must execute it in the path relative to which you want to calculate the absolute result).
From the docs:
Another way to think of resolve is as a sequence of cd commands in a shell.
Links to path.resolve and path.normalize in the documentation. I mostly don't want to just provide links in an answer but the Node.js docs are very decent.
i have something like
<s:link view="/member/index.xhtml" value="My News" propagation="none"/>
<s:link view="/member/index.xhtml" value="#{msg.myText}" propagation="none"/>
where the value of myText in the messages.properties is
myText=My News
The first line of the example works fine and replaces the text to "My News", but the second that uses a value from the resource bundle escapes the ambersand, too "My News".
I tried also to use unicode escape sequences for the ambersand and/or hash with My\u0026\u0023160;News, My\u0026#160;News and My\u0026nbsp;News in the properties file without success.
(Used css no-wrap instead of the previous used xml encoding, but would be interested anyway)
EDIT - Answer to clarified question
The first is obviously inline, so interpreter knows that this is safe.
The second one comes from external source (you are using Expression Language) and as such is not safe and need to be escaped. The result of escaping would be as you wrote, basically it will show you the exact value of HTML entity.
This is related to security (XSS for example) and not necessary i18n.
Previous attempt
I don't quite know what you are asking for but I believe it is "how to display it?".
Most of the standard JSF controls contain escape attribute that if set to false won't escape the text. Unfortunately it seems that you are using something like SeamTools which does not have this attribute.
Well, in this case there is not much to be done. Unless you could use standard control, maybe you should go and try to actually save your properties file as Unicode (UTF-16 BigEndian in fact) and simply put valid Unicode non-breaking space character. Theoretically that should work; Unicode-encoded properties files are supported in latest version of Java (although I cannot recall if it was Java SE 5 or Java SE 6)...