├── .gitignore ├── .travis.yml ├── Cargo.toml ├── LICENSE-APACHE ├── LICENSE-MIT ├── README.md ├── src ├── bin │ └── main.rs └── lib.rs └── tests └── tests.rs /.gitignore: -------------------------------------------------------------------------------- 1 | target 2 | Cargo.lock 3 | tags 4 | *.swp 5 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: rust 2 | -------------------------------------------------------------------------------- /Cargo.toml: -------------------------------------------------------------------------------- 1 | [package] 2 | name = "xmlJSON" 3 | version = "0.2.0" 4 | authors = ["Scott Cooper "] 5 | 6 | description = "Conversions from XML to JSON" 7 | readme = "README.md" 8 | license = "MIT OR Apache-2.0" 9 | repository = "https://github.com/sacooper/xmlJSON-rs" 10 | documentation = "http://sacooper.github.io/xmlJSON-rs/xmlJSON/index.html" 11 | homepage = "http://sacooper.github.io/xmlJSON-rs/xmlJSON/index.html" 12 | keywords = ["XML", "JSON", "xml", "json", "conversion"] 13 | 14 | [dependencies] 15 | xml-rs = "0.3.0" 16 | rustc-serialize = "0.3.16" 17 | -------------------------------------------------------------------------------- /LICENSE-APACHE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | 23 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # xmlJSON 2 | 3 | [![Crates.io](https://img.shields.io/crates/l/xmlJSON.svg)](https://crates.io/crates/xmlJSON) 4 | [![Crates.io](https://img.shields.io/crates/v/xmlJSON.svg)](https://crates.io/crates/xmlJSON) 5 | [![Crates.io](https://img.shields.io/crates/d/xmlJSON.svg)](https://crates.io/crates/xmlJSON) 6 | [![Build Status](https://travis-ci.org/sacooper/xmlJSON-rs.svg?branch=master)](https://travis-ci.org/sacooper/xmlJSON-rs.svg) 7 | 8 | Convert XML data to JSON. Note that this is not yet well tested. Use at your own risk. 9 | 10 | ## Status 11 | 12 | [Docs](http://sacooper.io/xmlJSON-rs/xmlJSON/index.html) 13 | 14 | ## Usage 15 | Add this to your Cargo.toml: 16 | ```rust 17 | [dependencies] 18 | xmlJSON = "0.2.0" 19 | ``` 20 | 21 | Structs for conversions from XML to JSON 22 | ```rust 23 | extern crate xmlJSON; 24 | extern crate rustc_serialize; 25 | 26 | use xmlJSON::XmlDocument; 27 | use rustc_serialize::json; 28 | use std::str::FromStr; 29 | 30 | let s = "An XML Document A test 31 | element" 32 | let document : XmlDocument = XmlDocument::from_str(s).unwrap(); 33 | let jsn : json::Json = document.to_json(); 34 | ``` 35 | 36 | The resulting Json will be of the form 37 | 38 | ```javascript 39 | { 40 | "test": { 41 | "$": { 42 | "lang": "rust" 43 | }, 44 | "_" : "An Xml Document", 45 | "testElement": { 46 | "_" : "A test element" 47 | } 48 | } 49 | } 50 | ``` 51 | 52 | and add this to your crate root: 53 | ```rust 54 | extern crate xmlJSON; 55 | ``` 56 | 57 | ## License 58 | 59 | Licensed under either of 60 | 61 | * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0) 62 | * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT) 63 | 64 | at your option. 65 | 66 | ### Contribution 67 | 68 | Unless you explicitly state otherwise, any contribution intentionally submitted 69 | for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any 70 | additional terms or conditions. 71 | 72 | ## TODO: 73 | - Add better testing 74 | - Add documentation 75 | - Add conversion from JSON to XML, and allowing for writing JSON as XML 76 | -------------------------------------------------------------------------------- /src/bin/main.rs: -------------------------------------------------------------------------------- 1 | extern crate xmlJSON; 2 | extern crate rustc_serialize; 3 | 4 | use rustc_serialize::json::ToJson; 5 | use xmlJSON::XmlDocument; 6 | use std::str::FromStr; 7 | 8 | fn main() { 9 | println!("{}", XmlDocument::from_str("god please workWE'LL SEE").unwrap().to_json()); 10 | } 11 | -------------------------------------------------------------------------------- /src/lib.rs: -------------------------------------------------------------------------------- 1 | //! Structs for conversions from XML to JSON 2 | //! 3 | //! # Example 4 | //! ``` 5 | //! use xmlJSON::XmlDocument; 6 | //! use std::str::FromStr; 7 | //! 8 | //! let test = " 9 | //! test 10 | //! "; 11 | //! let data = XmlDocument::from_str(test); 12 | 13 | 14 | extern crate xml; 15 | extern crate rustc_serialize; 16 | 17 | use std::io::prelude::*; 18 | use xml::reader::{EventReader,XmlEvent}; 19 | use xml::namespace::{self, Namespace}; 20 | use xml::attribute::OwnedAttribute; 21 | use xml::name::OwnedName; 22 | use std::str::FromStr; 23 | use std::fmt; 24 | use std::io::Cursor; 25 | use rustc_serialize::json; 26 | use std::collections::BTreeMap; 27 | 28 | /// An XML Document 29 | #[derive(Debug, Clone)] 30 | pub struct XmlDocument { 31 | /// Data contained within the parsed XML Document 32 | pub data: Vec 33 | } 34 | 35 | // Print as JSON 36 | impl fmt::Display for XmlDocument { 37 | fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { 38 | let mut s = String::new(); 39 | 40 | for d in self.data.iter() { 41 | s = format!("{}{}", s, d); 42 | } 43 | 44 | s.fmt(f) 45 | } 46 | } 47 | 48 | /// An XML Tag 49 | /// 50 | /// For exammple: 51 | /// 52 | /// ```XML 53 | /// 54 | /// test text 55 | /// 56 | /// 57 | /// ``` 58 | #[derive(Debug, Clone)] 59 | pub struct XmlData { 60 | /// Name of the tag (i.e. "foo") 61 | pub name: String, 62 | /// Key-value pairs of the attributes (i.e. ("bar", "baz")) 63 | pub attributes: Vec<(String, String)>, 64 | /// Data (i.e. "test text") 65 | pub data: Option, 66 | /// Sub elements (i.e. an XML element of "sub") 67 | pub sub_elements: Vec 68 | } 69 | 70 | // Generate indentation 71 | fn indent(size: usize) -> String { 72 | const INDENT: &'static str = " "; 73 | (0..size).map(|_| INDENT) 74 | .fold(String::with_capacity(size*INDENT.len()), |r, s| r + s) 75 | } 76 | 77 | // Get the attributes as a string 78 | fn attributes_to_string(attributes: &[(String, String)]) -> String { 79 | attributes.iter().fold(String::new(), |acc, &(ref k, ref v)|{ 80 | format!("{} {}=\"{}\"", acc, k , v) 81 | }) 82 | } 83 | 84 | // Format the XML data as a string 85 | fn format(data: &XmlData, depth: usize) -> String { 86 | let sub = 87 | if data.sub_elements.is_empty() { 88 | String::new() 89 | } else { 90 | let mut sub = "\n".to_string(); 91 | for elmt in data.sub_elements.iter() { 92 | sub = format!("{}{}", sub, format(elmt, depth + 1)); 93 | } 94 | sub 95 | }; 96 | 97 | let indt = indent(depth); 98 | 99 | let fmt_data = if let Some(ref d) = data.data { 100 | format!("\n{}{}", indent(depth+1), d) 101 | } else { 102 | "".to_string() 103 | }; 104 | 105 | format!("{}<{}{}>{}{}\n{}\n", indt, data.name, attributes_to_string(&data.attributes), fmt_data, sub, indt, data.name) 106 | } 107 | 108 | impl fmt::Display for XmlData { 109 | fn fmt(&self, f : &mut fmt::Formatter) -> fmt::Result { 110 | write!(f, "{}", format(self, 0)) 111 | } 112 | } 113 | 114 | // Get the XML atributes as a string 115 | fn map_owned_attributes(attrs: Vec) -> Vec<(String, String)> { 116 | attrs.into_iter().map(|attr|{ 117 | let fmt_name = if attr.name.prefix.is_some() { 118 | format!("{}:{}", attr.name.prefix.unwrap(), attr.name.local_name) 119 | } else { 120 | attr.name.local_name.clone() 121 | }; 122 | (fmt_name, attr.value) 123 | }).collect() 124 | } 125 | 126 | // Parse the data 127 | fn parse(mut data: Vec, current: Option, mut current_vec: Vec, trim: bool, current_namespace : Namespace) -> Result<(Vec, Vec), String> { 128 | if let Some(elmt) = data.pop() { 129 | match elmt { 130 | XmlEvent::StartElement{name, attributes, namespace} => { 131 | let fmt_name = if name.prefix.is_some() { 132 | format!("{}:{}", name.prefix.unwrap(), name.local_name) 133 | } else { 134 | name.local_name 135 | }; 136 | 137 | let attributes = if namespace == current_namespace { 138 | attributes 139 | } else { 140 | let mut attributes = attributes; 141 | let n = namespace.clone(); 142 | let ns = n.into_iter() 143 | .filter(|&(k,v)|{ 144 | (k != namespace::NS_NO_PREFIX) && (v != namespace::NS_EMPTY_URI) 145 | }) 146 | .map(|(k,v)| { 147 | OwnedAttribute { 148 | name: OwnedName { 149 | local_name: k.to_string(), 150 | namespace: Some(v.to_string()), 151 | prefix: Some("xmlns".to_string()) 152 | }, 153 | value: v.to_string() 154 | } 155 | }); 156 | attributes.extend(ns); 157 | attributes 158 | }; 159 | 160 | let inner = XmlData{ 161 | name: fmt_name, 162 | attributes: map_owned_attributes(attributes), 163 | data: None, 164 | sub_elements: Vec::new() 165 | }; 166 | 167 | let (inner, rest) = try!(parse(data, Some(inner), Vec::new(), trim, namespace.clone())); 168 | 169 | if let Some(mut crnt) = current { 170 | crnt.sub_elements.extend(inner); 171 | parse(rest, Some(crnt), current_vec, trim, namespace) 172 | } else { 173 | current_vec.extend(inner); 174 | parse(rest, None, current_vec, trim, namespace) 175 | } 176 | }, 177 | XmlEvent::Characters(chr) => { 178 | let chr = if trim { chr.trim().to_string() } else {chr}; 179 | if let Some(mut crnt) = current { 180 | crnt.data = Some(chr); 181 | parse(data, Some(crnt), current_vec, trim, current_namespace) 182 | } else { 183 | Err("Invalid form of XML doc".to_string()) 184 | } 185 | }, 186 | XmlEvent::EndElement{name} => { 187 | let fmt_name = if name.prefix.is_some() { 188 | format!("{}:{}", name.prefix.unwrap(), name.local_name) 189 | } else { 190 | name.local_name.clone() 191 | }; 192 | if let Some(crnt) = current { 193 | if crnt.name == fmt_name { 194 | current_vec.push(crnt); 195 | return Ok((current_vec, data)) 196 | } else { 197 | Err(format!("Invalid end tag: expected {}, got {}", crnt.name, name.local_name)) 198 | } 199 | } else { 200 | Err(format!("Invalid end tag: {}", name.local_name)) 201 | } 202 | } 203 | _ => parse(data, current, current_vec, trim, current_namespace) 204 | } 205 | } else { 206 | if current.is_some() { 207 | Err("Invalid end tag".to_string()) 208 | } else { 209 | Ok((current_vec, Vec::new())) 210 | } 211 | } 212 | } 213 | 214 | impl XmlDocument { 215 | pub fn from_reader(source : R, trim: bool) -> Result where R : Read { 216 | let mut parser = EventReader::new(source); 217 | let mut events : Vec = parser.into_iter().map(|x| x.unwrap() ).collect(); 218 | events.reverse(); 219 | 220 | parse(events, None, Vec::new(), trim, Namespace::empty()) 221 | .map(|(data, _)| XmlDocument{ data: data } ) 222 | .map_err(|e| ParseXmlError(e)) 223 | } 224 | } 225 | 226 | /// Error when parsing XML 227 | #[derive(Debug, Clone, PartialEq)] 228 | pub struct ParseXmlError(String); 229 | 230 | impl fmt::Display for ParseXmlError{ 231 | fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result{ 232 | write!(f, "Coult not parse string to XML: {}", self.0) 233 | } 234 | } 235 | 236 | // Generate an XML document from a string 237 | impl FromStr for XmlDocument { 238 | type Err = ParseXmlError; 239 | 240 | fn from_str(s: &str) -> Result { 241 | XmlDocument::from_reader(Cursor::new(s.to_string().into_bytes()), true) 242 | } 243 | } 244 | 245 | // Convert the data to an key-value pair of JSON 246 | fn to_kv(data: &XmlData) -> (String, json::Json) { 247 | use rustc_serialize::json::ToJson; 248 | 249 | let mut map: BTreeMap = BTreeMap::new(); 250 | 251 | if data.data.is_some(){ 252 | map.insert("_".to_string(), data.data.clone().unwrap().to_json()); 253 | } 254 | 255 | for (k, v) in data.sub_elements.iter().map(|x|{to_kv(x)}){ 256 | let existed = if let Some(it) = map.get_mut(&k) { 257 | use rustc_serialize::json::Json; 258 | match it { 259 | &mut Json::Array(ref mut a) => { 260 | a.push(v.to_json()); 261 | }, 262 | n => { 263 | let x = vec![n.clone(), v.to_json()]; 264 | *n = x.to_json(); 265 | } 266 | } 267 | true 268 | } else { 269 | false 270 | }; 271 | 272 | if !existed { 273 | map.insert(k.clone(), v.to_json()); 274 | } 275 | } 276 | 277 | let mut attr : BTreeMap = BTreeMap::new(); 278 | for &(ref k, ref v) in data.attributes.iter() { 279 | let existed = if let Some(it) = attr.get_mut(k) { 280 | use rustc_serialize::json::Json; 281 | match it { 282 | &mut Json::Array(ref mut a) => { 283 | a.push(v.to_json()); 284 | }, 285 | n => { 286 | let x = vec![n.clone(), v.to_json()]; 287 | *n = x.to_json(); 288 | } 289 | } 290 | true 291 | } else { 292 | false 293 | }; 294 | 295 | if !existed { 296 | attr.insert(k.clone(), v.to_json()); 297 | } 298 | } 299 | 300 | 301 | if !attr.is_empty() { 302 | map.insert("$".to_string(), attr.to_json()); 303 | } 304 | 305 | (data.name.clone(), map.to_json()) 306 | } 307 | 308 | impl json::ToJson for XmlDocument { 309 | fn to_json(&self) -> json::Json { 310 | let mut map: BTreeMap = BTreeMap::new(); 311 | 312 | for (k, v) in self.data.iter().map(|x|{to_kv(x)}) { 313 | map.insert(k, v); 314 | } 315 | 316 | map.to_json() 317 | } 318 | } 319 | -------------------------------------------------------------------------------- /tests/tests.rs: -------------------------------------------------------------------------------- 1 | extern crate xmlJSON; 2 | use xmlJSON::XmlDocument; 3 | use std::io::Cursor; 4 | use std::str::FromStr; 5 | 6 | #[test] 7 | fn test_basic_xml(){ 8 | let test = " 9 | test 10 | ".to_string(); 11 | let data = XmlDocument::from_reader(Cursor::new(test.into_bytes()), true).unwrap(); 12 | assert_eq!(data.data.len(), 1); 13 | 14 | let ref data = data.data[0]; 15 | assert_eq!(data.name, "note"); 16 | 17 | let attrs = vec![("type".to_string(), "Reminder".to_string()), 18 | ("xmlns:xml".to_string(), "http://www.w3.org/XML/1998/namespace".to_string()), 19 | ("xmlns:xmlns".to_string(), "http://www.w3.org/2000/xmlns/".to_string())]; 20 | 21 | assert_eq!(data.attributes, attrs); 22 | 23 | assert!(data.sub_elements.is_empty()); 24 | 25 | assert_eq!(data.data, Some("test".to_string())); 26 | } 27 | 28 | #[test] 29 | fn test_from_str(){ 30 | let test = " 31 | test 32 | "; 33 | let data = XmlDocument::from_str(test); 34 | assert!(data.is_ok()); 35 | let data = data.unwrap(); 36 | 37 | assert_eq!(data.data.len(), 1); 38 | 39 | let ref data = data.data[0]; 40 | assert_eq!(data.name, "note"); 41 | 42 | let attrs = vec![("type".to_string(), "Reminder".to_string()), 43 | ("xmlns:xml".to_string(), "http://www.w3.org/XML/1998/namespace".to_string()), 44 | ("xmlns:xmlns".to_string(), "http://www.w3.org/2000/xmlns/".to_string())]; 45 | 46 | assert_eq!(data.attributes, attrs); 47 | 48 | assert!(data.sub_elements.is_empty()); 49 | 50 | assert_eq!(data.data, Some("test".to_string())); 51 | } 52 | --------------------------------------------------------------------------------