[−][src]Crate xmlparser_derive
deprecated
xmlparser-dervie
has been renamed to strong-xml
since v0.1.2.
A proc macro to generate functions for writing to and parsing from xml string, based on xmlparser.
Quick Start
xmlparser = "0.13.0"
xmlparser-derive = "0.1.0"
use std::borrow::Cow; use xmlparser_derive::{XmlRead, XmlWrite}; #[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "parent")] struct Parent<'a> { #[xml(attr = "attr1")] attr1: Cow<'a, str>, #[xml(attr = "attr2")] attr2: Option<Cow<'a, str>>, #[xml(child = "child")] child: Vec<Child<'a>>, } #[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "child")] struct Child<'a> { #[xml(text)] text: Cow<'a, str>, } assert_eq!( (Parent { attr1: "val".into(), attr2: None, child: vec![] }).to_string().unwrap(), r#"<parent attr1="val"></parent>"# ); assert_eq!( Parent::from_str(r#"<parent attr1="val" attr2="val"><child></child></parent>"#).unwrap(), Parent { attr1: "val".into(), attr2: Some("val".into()), child: vec![Child { text: "".into() }] } );
Attributes
#[xml(tag = "")]
Specifies the xml tag of a struct or an enum variant.
#[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "parent")] struct Parent {} assert_eq!( (Parent {}).to_string().unwrap(), r#"<parent></parent>"# ); assert_eq!( Parent::from_str(r#"<parent></parent>"#).unwrap(), Parent {} );
#[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "tag1")] struct Tag1 {} #[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "tag2")] struct Tag2 {} #[derive(XmlWrite, XmlRead, PartialEq, Debug)] enum Tag { #[xml(tag = "tag1")] Tag1(Tag1), #[xml(tag = "tag2")] Tag2(Tag2), } assert_eq!( (Tag::Tag1(Tag1 {})).to_string().unwrap(), r#"<tag1></tag1>"# ); assert_eq!( Tag::from_str(r#"<tag2></tag2>"#).unwrap(), Tag::Tag2(Tag2 {}) );
#[xml(attr = "")]
Specifies that a struct field is attribute. Support
Cow<str>
, Option<Cow<str>>
, bool
, Option<bool>
,
usize
, Option<usize>
, T
and Option<T>
where
T: std::str::FromStr
.
use xmlparser_derive::{XmlRead, XmlWrite}; #[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "parent")] struct Parent { #[xml(attr = "attr")] attr: usize } assert_eq!( (Parent { attr: 42 }).to_string().unwrap(), r#"<parent attr="42"></parent>"# ); assert_eq!( Parent::from_str(r#"<parent attr="48"></parent>"#).unwrap(), Parent { attr: 48 } );
#[xml(leaf)]
Specifies that a sturct is leaf element.
#[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(leaf, tag = "leaf")] struct Leaf {} assert_eq!( (Leaf {}).to_string().unwrap(), r#"<leaf/>"# ); assert_eq!( Leaf::from_str(r#"<leaf/>"#).unwrap(), Leaf {} );
#[xml(child = "")]
Specifies that a struct field is a child element. Support
T
, Option<T>
, Vec<T>
where T: XmlRead + XmlWrite
.
use xmlparser_derive::{XmlRead, XmlWrite}; #[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "tag1")] struct Tag1 {} #[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "tag2")] struct Tag2 {} #[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "tag3")] struct Tag3 {} #[derive(XmlWrite, XmlRead, PartialEq, Debug)] enum Tag12 { #[xml(tag = "tag1")] Tag1(Tag1), #[xml(tag = "tag2")] Tag2(Tag2), } #[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "parent")] struct Parent { #[xml(child = "tag3")] tag3: Vec<Tag3>, #[xml(child = "tag1", child = "tag2")] tag12: Option<Tag12> } assert_eq!( (Parent { tag3: vec![Tag3 {}], tag12: None }).to_string().unwrap(), r#"<parent><tag3></tag3></parent>"# ); assert_eq!( Parent::from_str(r#"<parent><tag2></tag2></parent>"#).unwrap(), Parent { tag3: vec![], tag12: Some(Tag12::Tag2(Tag2 {})) } );
#[xml(text)]
Specifies that a struct field is text content.
Support Cow<str>
.
use std::borrow::Cow; use xmlparser_derive::{XmlRead, XmlWrite}; #[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "parent")] struct Parent<'a> { #[xml(text)] content: Cow<'a, str>, } assert_eq!( (Parent { content: "content".into() }).to_string().unwrap(), r#"<parent>content</parent>"# ); assert_eq!( Parent::from_str(r#"<parent></parent>"#).unwrap(), Parent { content: "".into() } );
#[xml(flatten_text = "")]
Specifies that a struct field is child text element.
Support Cow<str>
, Vec<Cow<str>>
and Option<Cow<str>>
.
use std::borrow::Cow; use xmlparser_derive::{XmlRead, XmlWrite}; #[derive(XmlWrite, XmlRead, PartialEq, Debug)] #[xml(tag = "parent")] struct Parent<'a> { #[xml(flatten_text = "child")] content: Cow<'a, str>, } assert_eq!( (Parent { content: "content".into() }).to_string().unwrap(), r#"<parent><child>content</child></parent>"# ); assert_eq!( Parent::from_str(r#"<parent><child></child></parent>"#).unwrap(), Parent { content: "".into() } );
License
MIT
Modules
utils |
Enums
XmlError |
Type Definitions
XmlReader | |
XmlResult | Specialized |
Derive Macros
XmlRead | |
XmlWrite |