In .NET, I'd use System.IO.Path.GetInvalidFileNameChars to scan a string containing a filename to validate it does not contain invalid characters.
In WinJS, I can't find the equivalent to this function. Is there somewhere else that these characters could be retrieved? My code is building a string based on some metadata from a file, and I suspect that there may be characters present that will not work when creating a new file (imagine like the "title" of a Microsoft Word docx file for example, where the title could contain : and \ characters that wouldn't be valid file names). I'd like to remove or convert these invalid characters so that the file can be saved without user intervention.
Of course, I could just grab a list from .NET and hard code that, but that doesn't seem nearly as elegant.
My other thought was to expose the functionality from a C# component (and expose it as a WinRT component), but I'd rather not introduce a second run-time just for some simple functions like this if I could help it.
There doesn't seem to be a method in WinJS that does this.
Given the small number of special characters, I'd just hardcode those. To get the list, simply try to rename a file to file?.txt in Windows Explorer. It shows you the list of invalid characters:
\ / : * ? " < > |
Related
I have a CSV file which I want to convert to Parquet for futher processing. Using
sqlContext.read()
.format("com.databricks.spark.csv")
.schema(schema)
.option("delimiter",";")
.(other options...)
.load(...)
.write()
.parquet(...)
works fine when my schema contains only Strings. However, some of the fields are numbers that I'd like to be able to store as numbers.
The problem is that the file arrives not as an actual "csv" but semicolon delimited file, and the numbers are formatted with German notation, i.e. comma is used as decimal delimiter.
For example, what in US would be 123.01 in this file would be stored as 123,01
Is there a way to force reading the numbers in different Locale or some other workaround that would allow me to convert this file without first converting the CSV file to a different format? I looked in Spark code and one nasty thing that seems to be causing issue is in CSVInferSchema.scala line 268 (spark 2.1.0) - the parser enforces US formatting rather than e.g. rely on the Locale set for the JVM, or allowing configuring this somehow.
I thought of using UDT but got nowhere with that - I can't work out how to get it to let me handle the parsing myself (couldn't really find a good example of using UDT...)
Any suggestions on a way of achieving this directly, i.e. on parsing step, or will I be forced to do intermediate conversion and only then convert it into parquet?
For anybody else who might be looking for answer - the workaround I went with (in Java) for now is:
JavaRDD<Row> convertedRDD = sqlContext.read()
.format("com.databricks.spark.csv")
.schema(stringOnlySchema)
.option("delimiter",";")
.(other options...)
.load(...)
.javaRDD()
.map ( this::conversionFunction );
sqlContext.createDataFrame(convertedRDD, schemaWithNumbers).write().parquet(...);
The conversion function takes a Row and needs to return a new Row with fields converted to numerical values as appropriate (or, in fact, this could perform any conversion). Rows in Java can be created by RowFactory.create(newFields).
I'd be happy to hear any other suggestions how to approach this but for now this works. :)
I am trying to use a *.resw file in my UWP app to store localized strings. I am loading these strings through ResourceLoader.GetString() and am placing them in a MessageDialog for presentation to the user, but no matter what I do the return value of GetString() is an empty (zero-length) string. I am following the SDK sample for localization, but am not getting the expected response.
The string I am trying to use is of the format InvalidAssemblyDialog.Message.
As it turns out this problem was due to my using dots in the keys for my strings in the *.resw file. Dots are reserved, and my usage of them was causing name-resolution errors. In the case of the example above, I changed it to InvalidAssemblyDialog_Message.
Here the documentation says "." characters should be replaced with "/" when resources are queried from code.
If a resource name is segmented (it contains "." characters), then replace dots with forward slash ("/") characters in the resource name. Property identifiers, for example, contain dots; so you'd need to do this substition in order to load one of those from code.
I want to add a link using existing string in in my wiki page.
This string will be appended to a url to form a complete URL.
This string consists of many words, for example "Crisis Management in International Computing"
I want to split by empty space " " then construct this string: "Crisis+Management+in+International+Computing"
Here is the String variable I have in my wiki page:
{{SUBJECTPAGENAME}}
Note: I have to check first if the string consists of more than one word, as if the string is just one word like this "Crisis" I won't perform split function.
I searched the web and did not find clear semantic to us in order to perform this issue.
Anyone experienced such a matter?
If I understand correctly from the comments, you want to replace all occurrences of space in your string, and replace it with +. That can be done with string functions of the ParserFunctions extension.
If you are running a fairly recent version of MediaWiki (>1.18, check by going to Special:Version), the ParserFunctions extension is bundled with the software. You just need to enable it by adding the following to LocalSettings.php:
require_once "$IP/extensions/ParserFunctions/ParserFunctions.php";
$wgPFEnableStringFunctions = true;
Then you will be able to write e.g.
{{#replace: {{SUBJECTPAGENAME}} |<nowiki> </nowiki>|+}}
Note however that if all you really want is a url version of a page name, you can just use {{SUBJECTPAGENAMEE}} instead of {{SUBJECTPAGENAME}}.
I would recommend you to go for a custom parser function.
Or as a hack, try splitting the string using the arraymaptemplate parser functions coming as part of Semantic Forms.
URL : arraymaptemplate parser function.
You can use an intro template to create the link and use array template to split and add the words to the intro template.
I have not tried it with delimiter character as space, but from the documentation, seems, it should be working using the html encoding for space.
I’m trying to use the REST API provided by DeployIt (v3.9) to list all the packages available on a given project.
Thus, I use the GET /repository/query service
So, I’m calling this service with the following URL:
http://[server]/deployit/repository/query?namePattern=my-app&type=udm.DeploymentPackage
Unfortunately, I don’t get anything (just an empty list).
If I remove the namePattern from my URL, then I get a long list of all applications (not only the only I'm interested in).
So it appears that I don’t set correctly the namePattern attribute. In the documentation, they say:
a search pattern for the name. This is like the SQL "LIKE" pattern:
the character '%' represents any string of zero or more characters,
and the character '_' (underscore) represents any single character.
Any literal use of these two characters must be escaped with a
backslash ('\'). Consequently, any literal instance of a backslash
must also be escaped, resulting in a double backslash ('\').
So I tried the following URL:
http://[server]/deployit/repository/query?type=udm.DeploymentPackage&namePattern=my-app : empty list
http://[server]/deployit/repository/query?type=udm.DeploymentPackage&namePattern=%my-app%: error 400
http://[server]/deployit/repository/query?type=udm.DeploymentPackage&namePattern=%25my-app%25 (trying to escape the % character): empty list
http://[server]/deployit/repository/query?type=udm.DeploymentPackage&namePattern=Applications/my-app/2.0.0 (with a real version): error, character ‘/’ not allowed.
http://[server]/deployit/repository/query?type=udm.DeploymentPackage&namePattern=2.0.0 : I get the list of all applications deployed with a version 2.0.0 (including my my-app), but that's not what I'm looking for (I want all versions available on DeployIt for my-app).
So, what is the correct URL to retrieve the list of deployed applications?
I've solved my problem. In fact, the namePattern only applies to the last part of the Application name, i.e. the version.
Thus, I have to use the parent attribute to retrieve the list of my application:
http://[server]/deployit/repository/query?type=udm.DeploymentPackage&parent=Applications%2Fmy-app&resultsPerPage=-1
I have three files: Conf.txt, Temp1.txt and Temp2.txt. I have done regex to fetch some values from config.txt file. I want to place the values (Which are of same name in Temp1.txt and Temp2.txt) and create another two file say Temp1_new.txt and Temp2_new.txt.
For example: In config.txt I have a value say IP1 and the same name appears in Temp1.txt and Temp2.txt. I want to create files Temp1_new.txt and Temp2_new.txt replacing IP1 to say 192.X.X.X in Temp1.txt and Temp2.txt.
I appreciate if someone can help me with tcl code to do same.
Judging from the information provided, there basically are two ways to do what you want:
File-semantics-aware;
Brute-force.
The first way is to read the source file, parse it to produce certain structured in-memory representation of its content, then serialize this content to the new file after replacing the relevant value(s) in the produced representation.
Brute-force method means treating the contents of the source file as plain text (or a series of text strings) and running something like regsub or string replace on this text to produce the new text which you then save to the new file.
The first way should generally be favoured, especially for complex cases as it removes any chance of replacing irrelevant bits of text. The brute-force way me be simpler to code (if there's no handy library to do this, see below) and is therefore good for throw-away scripts.
Note that for certain file formats there are ready-made libraries which can be used to automate what you need. For instance, XSLT facilities of the tdom package can be used to to manipulate XML files, INI-style file can be modified using the appropriate library and so on.