TL;DR: If you want to see the code, jump to the second portion of the answer. I would build a tree from the expression to parse and then traverse it depth first. You can refer to the wikipedia article about Binary Expression Trees to get a feel for what I’m suggesting. Start by adding the … Read more
You want to use HTML tidy to do this. The Lib curl page has some source code to get you going. Documents traversing the dom tree. You don’t need an xml parser. Doesn’t fail on badly formated html. http://curl.haxx.se/libcurl/c/htmltidy.html
Use the ‘csv’ library. First, register your dialect: import csv csv.register_dialect(‘piper’, delimiter=”|”, quoting=csv.QUOTE_NONE) Then, use your dialect on the file: with open(myfile, “rb”) as csvfile: for row in csv.DictReader(csvfile, dialect=”piper”): print row[‘name’]
The NPM package d2l-intl provides a locale-sensitive parser. It has since been superseded by @brightspace-ui/intl (essentially version 3), so some info below might or might not apply in its newer incantation. const { NumberFormat, NumberParse } = require(‘d2l-intl’); const formatter = new NumberFormat(‘es’); const parser = new NumberParse(‘es’); const number = 1234.5; console.log(formatter.format(number)); // 1.234,5 … Read more
parseFloat() turns a string into a floating point number. This is a binary value, not a decimal representation, so the concept of the number of zeros to the right of the decimal point doesn’t even apply; it all depends on how it is formatted back into a string. Regarding toFixed, I’d suggest converting the floating … Read more
The get_browser() function has been available in PHP for quite a long a time. The PHP manual is free, can be downloaded in various formats and viewed online (with comments)
Be Especially Careful with non‐ASCII in Python There are some really subtle issues with how Python deals with, or fails to deal with, non-ASCII in patterns and strings. Worse, these disparities vary substantially according, not just to which version of Python you are using, but also whether you have a “wide build”. In general, when … Read more
You need to get a list of all the keys, loop over them and add them to your map as shown in the example below: String s = “{menu:{\”1\”:\”sql\”, \”2\”:\”android\”, \”3\”:\”mvc\”}}”; JSONObject jObject = new JSONObject(s); JSONObject menu = jObject.getJSONObject(“menu”); Map<String,String> map = new HashMap<String,String>(); Iterator iter = menu.keys(); while(iter.hasNext()){ String key = (String)iter.next(); String … Read more
You should use the csv module: import csv reader = csv.reader([‘1997,Ford,E350,”Super, luxurious truck”‘], skipinitialspace=True) for r in reader: print r output: [‘1997’, ‘Ford’, ‘E350’, ‘Super, luxurious truck’]
You should implement std::str::FromStr trait. use std::str::FromStr; #[derive(Debug, PartialEq)] enum Foo { Bar, Baz, Bat, Quux, } impl FromStr for Foo { type Err = (); fn from_str(input: &str) -> Result<Foo, Self::Err> { match input { “Bar” => Ok(Foo::Bar), “Baz” => Ok(Foo::Baz), “Bat” => Ok(Foo::Bat), “Quux” => Ok(Foo::Quux), _ => Err(()), } } } fn … Read more