Stream XML parser for the V language

This module implements a simple and fast way to parse xml files.

Author

[email protected]

Known Issues and limitations

This library is in a very early stage of development, so things can change and bugs can appear.

• Not suitable for large files be (input data is copied into a string)
• use a callback or reader api to peek() from somewhere else
• Only expect utf8 encodings

Usage

See main.v

$ v -o vsax main.v
$ ./vsax test.xml

import sax
import os

struct XmlToHtml {
mut:
    depth int
    res   string
}

fn (mut mp XmlToHtml) document_start(mut st sax.Parser) ! {
    ...
}

fn (mut mp XmlToHtml) element_start(mut st sax.Parser, name string, attrs []sax.Attribute) ! {
    mp.depth++
}

fn (mut mp XmlToHtml) element_end(mut st sax.Parser, name string) ! {
    if mp.depth < 1 {
        return error ("cant close so many nodes")
    }
    mp.depth--
}
...

fn main() {
    if os.args.len < 2 {
        println('vsax file.xml')
        exit(1)
    }
    file_xml := os.read_file(os.args[1])!

    mut to_html := XmlToHtml{}
    mut p := sax.new_parser(mut to_html)
    p.parse(file_xml) or { println('parsing failed ${err}') }
    println(to_html.res)
}