Move css parser and lexer to rust-css

4 files changed, 0 insertions, 780 deletions

diff --git a/src/servo/css/lexer.rs b/src/servo/css/lexer.rs
deleted file mode 100644
index c0d5af6996a..00000000000
--- a/src/servo/css/lexer.rs
+++ /dev/null
@@ -1,266 +0,0 @@
-//! Code to lex and tokenize css files
-
-use option::is_none;
-use str::from_bytes;
-use vec::push;
-
-use pipes::{Port, Chan};
-
-use lexer_util::*;
-
-use std::net::url::Url;
-use std::cell::Cell;
-
-enum ParserState {
-    CssElement,
-    CssRelation,
-    CssDescription,
-    CssAttribute
-}
-
-type CssLexer = {
-    input_state: InputState,
-    mut parser_state: ParserState
-};
-
-pub enum Token {
-    StartDescription,
-    EndDescription,
-    Descendant,
-    Child,
-    Sibling,
-    Comma,
-    Element(~str),
-    Attr(newcss::values::Attr), 
-    Description(~str, ~str),
-    Eof
-}
-
-trait CssLexerMethods {
-    fn parse_css() -> Token;
-    fn parse_css_relation(c : u8) -> Token;
-    fn parse_css_element(c : u8) -> Token;
-    fn parse_css_attribute(c : u8) -> Token;
-    fn parse_css_description(c: u8) -> Token;
-}
-
-impl CssLexer : CssLexerMethods {
-    fn parse_css() -> Token {
-        let mut ch: u8;
-        match self.input_state.get() {
-            CoeChar(c) => ch = c,
-            CoeEof => { return Eof; }
-        }
-
-        let token = match self.parser_state {
-          CssDescription => self.parse_css_description(ch),
-          CssAttribute => self.parse_css_attribute(ch),
-          CssElement => self.parse_css_element(ch),
-          CssRelation => self.parse_css_relation(ch)
-        };
-
-        #debug["token=%?", token];
-        return move token;
-    }
-
-    fn parse_css_relation(c : u8) -> Token {
-        self.parser_state = CssElement;
-
-        let token = match c {
-          '{' as u8 => { self.parser_state = CssDescription; StartDescription }
-          '>' as u8 => { Child }
-          '+' as u8 => { Sibling }
-          ',' as u8 => { Comma }
-          _ => { self.input_state.unget(c); Descendant }
-        };
-
-        self.input_state.eat_whitespace();
-        
-        return move token;
-    }
-
-    fn parse_css_element(c : u8) -> Token {
-        assert is_none(&self.input_state.lookahead);
-
-        /* Check for special attributes with an implied element,
-        or a wildcard which is not a alphabet character.*/
-        if c == '.' as u8 || c == '#' as u8 {
-            self.parser_state = CssAttribute;
-            self.input_state.unget(c);
-            return Element(~"*");
-        } else if c == '*' as u8 {
-            self.parser_state = CssAttribute;
-            return Element(~"*");
-        }
-
-        self.input_state.unget(c);
-        let element = self.input_state.parse_ident();
-
-        self.parser_state = CssAttribute;
-        
-        return move Element(move element);
-    }
-
-    fn parse_css_attribute(c : u8) -> Token {
-        let mut ch = c;
-        
-        /* If we've reached the end of this list of attributes,
-        look for the relation to the next element.*/
-        if c.is_whitespace() {
-            self.parser_state = CssRelation;
-            self.input_state.eat_whitespace();
-
-            match self.input_state.get() {
-              CoeChar(c) => { ch = c }
-              CoeEof => { fail ~"File ended before description of style" }
-            }
-
-            return self.parse_css_relation(ch);
-        }
-        
-        match ch {
-          '.' as u8 => return Attr(newcss::values::Includes(~"class", self.input_state.parse_ident())),
-          '#' as u8 => return Attr(newcss::values::Includes(~"id", self.input_state.parse_ident())),
-          '[' as u8 => {
-            let attr_name = self.input_state.parse_ident();
-            
-            match self.input_state.get() {
-              CoeChar(c) => { ch = c; }
-              CoeEof => { fail ~"File ended before description finished"; }
-            }
-
-            if ch == ']' as u8 {
-                return Attr(newcss::values::Exists(move attr_name));
-            } else if ch == '=' as u8 {
-                let attr_val = self.input_state.parse_ident();
-                self.input_state.expect(']' as u8);
-                return Attr(newcss::values::Exact(move attr_name, move attr_val));
-            } else if ch == '~' as u8 {
-                self.input_state.expect('=' as u8);
-                let attr_val = self.input_state.parse_ident();
-                self.input_state.expect(']' as u8);
-                return Attr(newcss::values::Includes(move attr_name, move attr_val));
-            } else if ch == '|' as u8 {
-                self.input_state.expect('=' as u8);
-                let attr_val = self.input_state.parse_ident();
-                self.input_state.expect(']' as u8);
-                return Attr(newcss::values::StartsWith(move attr_name, move attr_val));
-            }
-            
-            fail #fmt("Unexpected symbol %c in attribute", ch as char);
-          }
-          _ => { fail #fmt("Unexpected symbol %c in attribute", ch as char); }
-        }
-    }
-
-    fn parse_css_description(c: u8) -> Token {
-        let mut ch = c;
-
-        if ch == '}' as u8 {
-            self.parser_state = CssElement;
-            self.input_state.eat_whitespace();
-            return EndDescription;
-        } else if ch.is_whitespace() {
-            self.input_state.eat_whitespace();
-
-            match self.input_state.get() {
-              CoeChar(c) => { ch = c }
-              CoeEof => { fail ~"Reached end of file in CSS description" }
-            }
-        }
-        
-        let mut desc_name = ~[];
-        
-        // Get the name of the descriptor
-        loop {
-            if ch.is_whitespace() {
-                self.input_state.eat_whitespace();
-            } else if ch == ':' as u8 {
-                if desc_name.len() == 0u {
-                    fail ~"Expected descriptor name";
-                } else {
-                    break;
-                }
-            } else {
-                push(&mut desc_name, ch);
-            }
-
-            match self.input_state.get() {
-              CoeChar(c) => { ch = c }
-              CoeEof => { fail ~"Reached end of file in CSS description" }
-            }
-        }
-
-        self.input_state.eat_whitespace();
-        let mut desc_val = ~[];
-
-        // Get the value of the descriptor
-        loop {
-            match self.input_state.get() {
-              CoeChar(c) => { ch = c }
-              CoeEof => { fail ~"Reached end of file in CSS description" }
-            }
-
-            if ch.is_whitespace() {
-                self.input_state.eat_whitespace();
-            } else if ch == '}' as u8 {
-                if desc_val.len() == 0u {
-                    fail ~"Expected descriptor value";
-                } else {
-                    self.input_state.unget('}' as u8);
-                    break;
-                }
-            } else if ch == ';' as u8 {
-                if desc_val.len() == 0u {
-                    fail ~"Expected descriptor value";
-                } else {
-                    break;
-                }
-            } else {
-                push(&mut desc_val, ch);
-            }
-        }
-
-        return Description(from_bytes(desc_name), from_bytes(desc_val));
-    }
-}
-
-fn parser(input: DataStream, state : ParserState) -> CssLexer {
-    return {
-           input_state: {
-               mut lookahead: None,
-               mut buffer: ~[],
-               input: input,
-               mut eof: false
-           },
-           mut parser_state: state
-    };
-}
-
-pub fn lex_css_from_bytes(input_stream: DataStream, result_chan : &Chan<Token>) {
-    let lexer = parser(input_stream, CssElement);
-
-    loop {
-        let token = lexer.parse_css();
-        let should_break = match token { Eof => true, _ => false };
-
-        result_chan.send(move token);
-
-        if should_break { 
-            break;
-        }
-    }
-}
-
-fn spawn_css_lexer_from_string(content : ~str) -> pipes::Port<Token> {
-    let (result_chan, result_port) = pipes::stream();
-
-    do task::spawn |move result_chan, move content| {
-        let content = str::to_bytes(content);
-        let content = Cell(copy content);
-        let input = |move content| if !content.is_empty() { Some(content.take()) } else { None };
-        lex_css_from_bytes(input, &result_chan);
-    }
-
-    return move result_port;
-}
diff --git a/src/servo/css/lexer_util.rs b/src/servo/css/lexer_util.rs
deleted file mode 100644
index bd31f8b5e1f..00000000000
--- a/src/servo/css/lexer_util.rs
+++ /dev/null
@@ -1,157 +0,0 @@
-/*!
-A collection of functions that are useful for both css and html parsing
-*/
-
-use option::is_none;
-use str::from_bytes;
-use vec::push;
-use comm::Port;
-
-enum CharOrEof {
-    CoeChar(u8),
-    CoeEof
-}
-
-pub type DataStream = @fn() -> Option<~[u8]>;
-
-impl CharOrEof: cmp::Eq {
-    pure fn eq(other: &CharOrEof) -> bool {
-        match (self, *other) {
-          (CoeChar(a), CoeChar(b)) => a == b,
-          (CoeChar(*), _) | (_, CoeChar(*)) => false,
-          (CoeEof, CoeEof) => true,
-        }
-    }
-    pure fn ne(other: &CharOrEof) -> bool {
-        return !self.eq(other);
-    }
-}
-
-type InputState = {
-    mut lookahead: Option<CharOrEof>,
-    mut buffer: ~[u8],
-    input: DataStream,
-    mut eof: bool
-};
-
-trait U8Methods {
-    fn is_whitespace() -> bool;
-    fn is_alpha() -> bool;
-}
-
-impl u8 : U8Methods {
-    fn is_whitespace() -> bool {
-        return self == ' ' as u8 || self == '\n' as u8 || self == '\t' as u8;
-    }
-
-    fn is_alpha() -> bool {
-        return (self >= ('A' as u8) && self <= ('Z' as u8)) ||
-               (self >= ('a' as u8) && self <= ('z' as u8));
-    }
-}
-
-trait InputStateUtil {
-    fn get() -> CharOrEof;
-    fn unget(ch: u8);
-    fn parse_err(+err: ~str) -> !;
-    fn expect(ch: u8);
-    fn parse_ident() -> ~str;
-    fn expect_ident(+expected: ~str);
-    fn eat_whitespace();
-}
-
-impl InputState : InputStateUtil {
-    fn get() -> CharOrEof {
-        match copy self.lookahead {
-          Some(coe) => {
-            let rv = coe;
-            self.lookahead = None;
-            return rv;
-          }
-          None => {
-            /* fall through */
-          }
-        }
-
-        // FIXME: Lots of copies here
-
-        if self.buffer.len() > 0 {
-            return CoeChar(vec::shift(&mut self.buffer));
-        }
-
-        if self.eof {
-            return CoeEof;
-        }
-
-        match self.input() {
-          Some(data) => {
-            // TODO: change copy to move once we have match move
-            self.buffer = copy data;
-            return CoeChar(vec::shift(&mut self.buffer));
-          }
-          None => {
-            self.eof = true;
-            return CoeEof;
-          }
-        }
-    }
-
-    fn unget(ch: u8) {
-        assert is_none(&self.lookahead);
-        self.lookahead = Some(CoeChar(ch));
-    }
-
-    fn parse_err(err: ~str) -> ! {
-        fail err
-    }
-
-    fn expect(ch: u8) {
-        match self.get() {
-          CoeChar(c) => { if c != ch { self.parse_err(#fmt("expected '%c'", ch as char)); } }
-          CoeEof => { self.parse_err(#fmt("expected '%c' at eof", ch as char)); }
-        }
-    }
-        
-    fn parse_ident() -> ~str {
-        let mut result: ~[u8] = ~[];
-        loop {
-            match self.get() {
-              CoeChar(c) => {
-                if (c.is_alpha()) { push(&mut result, c); }
-                else if result.len() == 0u { self.parse_err(~"expected ident"); }
-                else {
-                    self.unget(c);
-                    break;
-                }
-              }
-              CoeEof => {
-                self.parse_err(~"expected ident");
-              }
-            }
-        }
-        return str::from_bytes(result);
-    }
-
-    fn expect_ident(expected: ~str) {
-        let actual = self.parse_ident();
-        if expected != actual {
-            self.parse_err(#fmt("expected '%s' but found '%s'", expected, actual));
-        }
-    }
-
-    fn eat_whitespace() {
-        loop {
-            match self.get() {
-              CoeChar(c) => {
-                if !c.is_whitespace() {
-                    self.unget(c);
-                    return;
-                }
-              }
-              CoeEof => {
-                return;
-              }
-            }
-        }
-    }
-}
diff --git a/src/servo/css/parser.rs b/src/servo/css/parser.rs
deleted file mode 100644
index ab84d52b1ed..00000000000
--- a/src/servo/css/parser.rs
+++ /dev/null
@@ -1,226 +0,0 @@
-/**
-Constructs a list of css style rules from a token stream
-*/
-
-// TODO: fail according to the css spec instead of failing when things
-// are not as expected
-
-use newcss::values::*;
-// Disambiguate parsed Selector, Rule values from tokens
-use css = newcss::values;
-use tok = lexer;
-use lexer::Token;
-use comm::recv;
-use option::{map, is_none};
-use vec::push;
-use parser_util::*;
-use newcss::color::parsing::parse_color;
-use vec::push;
-
-type TokenReader = {stream : pipes::Port<Token>, mut lookahead : Option<Token>};
-
-trait TokenReaderMethods {
-    fn get() -> Token;
-    fn unget(+tok : Token);
-}
-
-impl TokenReader : TokenReaderMethods {
-    fn get() -> Token {
-        match copy self.lookahead {
-          Some(tok) => { self.lookahead = None; copy tok }
-          None => { self.stream.recv() }
-        }
-    }
-
-    fn unget(tok : Token) {
-        assert is_none(&self.lookahead);
-        self.lookahead = Some(move tok);
-    }
-}
-
-trait ParserMethods {
-    fn parse_element() -> Option<~css::Selector>;
-    fn parse_selector() -> Option<~[~css::Selector]>;
-    fn parse_description() -> Option<~[StyleDeclaration]>;
-    fn parse_rule() -> Option<~css::Rule>;
-}
-
-impl TokenReader : ParserMethods {
-    fn parse_element() -> Option<~css::Selector> {
-        // Get the current element type
-         let elmt_name = match self.get() {
-           lexer::Element(tag) => { copy tag }
-           lexer::Eof => { return None; }
-           _ => { fail ~"Expected an element" }
-         };
-
-         let mut attr_list = ~[];
-
-         // Get the attributes associated with that element
-         loop {
-             let token = self.get();
-             match token {
-               lexer::Attr(attr) => { push(&mut attr_list, copy attr); }
-               tok::StartDescription | tok::Descendant | tok::Child | tok::Sibling | tok::Comma => {
-                 self.unget(move token); 
-                 break;
-               }
-               tok::Eof => { return None; }
-               tok::Element(_) => fail ~"Unexpected second element without relation to first element",
-               tok::EndDescription => fail ~"Unexpected '}'",
-               tok::Description(_, _) => fail ~"Unexpected description"
-             }
-         }
-        return Some(~css::Element(move elmt_name, move attr_list));
-    }
-
-    fn parse_selector() -> Option<~[~css::Selector]> {
-        let mut sel_list = ~[];
-
-        // Collect all the selectors that this rule applies to
-        loop {
-            let mut cur_sel;
-
-            match self.parse_element() {
-              Some(elmt) => { cur_sel = copy elmt; }
-              None => { return None; } // we hit an eof in the middle of a rule
-            }
-
-            loop {
-                let tok = self.get();
-                let built_sel = move cur_sel;
-                
-                match tok {
-                  tok::Descendant => {
-                    match self.parse_element() {
-                      Some(elmt) => { 
-                        let new_sel = copy elmt;
-                        cur_sel = ~css::Descendant(move built_sel, move new_sel)
-                      }
-                      None => { return None; }
-                    }
-                  }
-                  tok::Child => {
-                    match self.parse_element() {
-                      Some(elmt) => { 
-                        let new_sel = copy elmt;
-                        cur_sel = ~css::Child(move built_sel, move new_sel)
-                      }
-                      None => { return None; }
-                    }
-                  }
-                  tok::Sibling => {
-                    match self.parse_element() {
-                      Some(elmt) => { 
-                        let new_sel = copy elmt;
-                        cur_sel = ~css::Sibling(move built_sel, move new_sel)
-                      }
-                      None => { return None; }
-                    }
-                  }
-                  tok::StartDescription => {
-                    push(&mut sel_list, move built_sel);
-                    self.unget(tok::StartDescription);
-                    break;
-                  }
-                  tok::Comma => {
-                    push(&mut sel_list, move built_sel);
-                    self.unget(tok::Comma);
-                    break;
-                  }
-                  tok::Attr(_) | tok::EndDescription | tok::Element(_) | tok::Description(_, _) => {
-                    fail #fmt["Unexpected token %? in elements", tok];
-                  }
-                  tok::Eof => { return None; }
-                }
-            }
-
-            // check if we should break out of the nesting loop as well
-            // TODO: fix this when rust gets labelled loops
-            let tok = self.get();
-            match tok {
-              tok::StartDescription => { break; }
-              tok::Comma => { }
-              _ => { self.unget(move tok); }
-            }
-        }
-        
-        return Some(move sel_list);
-    }
-
-    fn parse_description() -> Option<~[StyleDeclaration]> {
-        let mut desc_list : ~[StyleDeclaration]= ~[];
-        
-        // Get the description to be applied to the selector
-        loop {
-            let tok = self.get();
-            match tok {
-              tok::EndDescription => { break; }
-              tok::Description(prop, val) => {
-                let desc : Option<StyleDeclaration> = match prop {
-                  // TODO: have color parsing return a ParseResult instead of a real value
-                  ~"background-color" => parse_color(val).map(|res| BackgroundColor(Specified(BgColor(*res)))),
-                  ~"color" => parse_color(val).map(|res| Color(Specified(TextColor(*res)))),
-                  ~"display" => parse_display_type(val).extract(|res| Display(res)),
-                  ~"font-size" => parse_font_size(val).extract(|res| FontSize(res)),
-                  ~"height" => parse_box_sizing(val).extract(|res| Height(res)),
-                  ~"width" => parse_box_sizing(val).extract(|res| Width(res)),
-                    ~"border-width" => parse_length(val).map(|res| BorderWidth(Specified(*res))),
-                    ~"border-color" => parse_color(val).map(|res| BorderColor(Specified(BdrColor(*res)))),
-                    ~"position" => parse_position(val).extract(|res| Position(res)),
-                    ~"top" => parse_length(val).map(|res| Top(Specified(*res))),
-                    ~"right" => parse_length(val).map(|res| Right(Specified(*res))),
-                    ~"bottom" => parse_length(val).map(|res| Bottom(Specified(*res))),
-                    ~"left" => parse_length(val).map(|res| Left(Specified(*res))),
-                  _ => { #debug["Recieved unknown style property '%s'", val]; None }
-                };
-                match desc {
-                  Some(d) => push(&mut desc_list, d),
-                  None => { #debug["Couldn't parse value '%s' for property '%s'", val, prop] }
-                }
-              }
-              tok::Eof => { return None; }
-              tok::StartDescription | tok::Descendant |  tok::Child | tok::Sibling 
-              | tok::Comma | tok::Element(_) | tok::Attr(_) => {
-                fail #fmt["Unexpected token %? in description", tok]; 
-              }
-            }
-        }
-        
-        return Some(move desc_list);
-    }
-
-    fn parse_rule() -> Option<~css::Rule> {
-        // TODO: get rid of copies once match move works
-        let sel_list = match self.parse_selector() {
-          Some(list) => { copy list }
-          None => { return None; }
-        };
-
-        #debug("sel_list: %?", sel_list);
-        
-        // Get the description to be applied to the selector
-        let desc_list = match self.parse_description() {
-          Some(list) => { copy list }
-          None => { return None; }
-        };
-
-        #debug("desc_list: %?", desc_list);
-        
-        return Some(~(move sel_list, move desc_list));
-    }
-}
-
-pub fn build_stylesheet(stream : pipes::Port<Token>) -> ~[~css::Rule] {
-    let mut rule_list = ~[];
-    let reader = {stream : move stream, mut lookahead : None};
-
-    loop {
-        match reader.parse_rule() {
-          Some(rule) => { push(&mut rule_list, copy rule); }
-          None => { break; }
-        }
-    }
-
-    return move rule_list;
-}
diff --git a/src/servo/css/parser_util.rs b/src/servo/css/parser_util.rs
deleted file mode 100644
index f012f401eb6..00000000000
--- a/src/servo/css/parser_util.rs
+++ /dev/null
@@ -1,131 +0,0 @@
-//! Helper functions to parse values of specific attributes
-
-use newcss::values::*;
-use str::{pop_char, from_chars};
-use float::from_str;
-use option::map;
-
-export parse_font_size;
-export parse_size;
-export parse_box_sizing;
-export parse_display_type;
-
-
-fn parse_length(str : &str) -> Option<Length> {
-    // TODO: use these once we stop lexing below
-    const PTS_PER_INCH: float = 72.0;
-    const CM_PER_INCH: float = 2.54;
-    const PX_PER_PT: float = 1.0 / 0.75;
-
-    match str {
-      s if s.ends_with("in") => from_str(str.substr(0, str.len() - 2)).map(|f| Px(1.0/0.75 * 72.0 * *f)),
-      s if s.ends_with("cm") => from_str(str.substr(0, str.len() - 2)).map(|f| Px(*f / 2.54 * 72.0 * 1.0/0.75)),
-      s if s.ends_with("mm") => from_str(str.substr(0, str.len() - 2)).map(|f| Px(*f * 0.1 / 2.54 * 72.0 * 1.0/0.75)),
-      s if s.ends_with("pt") => from_str(str.substr(0, str.len() - 2)).map(|f| Px(1.0/0.75 * *f)),
-      s if s.ends_with("pc") => from_str(str.substr(0, str.len() - 2)).map(|f| Px(1.0/0.75 * 12.0 * *f)),
-      s if s.ends_with("px") => from_str(str.substr(0, str.len() - 2)).map(|f| Px(*f)),
-      s if s.ends_with("em") => from_str(str.substr(0, str.len() - 2)).map(|f| Em(*f)),
-      s if s.ends_with("ex") => from_str(str.substr(0, str.len() - 2)).map(|f| Em(0.5 * *f)),
-      _ => None,
-    }
-}
-
-fn parse_absolute_size(str : &str) -> ParseResult<AbsoluteSize> {
-    // FIXME: Bad copy. Can't match &str
-    match str.to_str() {
-      ~"xx-small" => Value(XXSmall),
-      ~"x-small" => Value(XSmall),
-      ~"small" => Value(Small),
-      ~"medium" => Value(Medium),
-      ~"large" => Value(Large),
-      ~"x-large" => Value(XLarge),
-      ~"xx-large" => Value(XXLarge),
-      _  => Fail
-    }
-}
-
-fn parse_position(str: &str) -> ParseResult<CSSPosition> {
-    // FIXME: Bad copy
-    match str.to_str() {
-        ~"static" => Value(PosStatic),
-        ~"relative" => Value(PosRelative),
-        ~"absolute" => Value(PosAbsolute),
-        ~"fixed" => Value(PosFixed),
-        _ => Fail
-    }
-}
-
-fn parse_relative_size(str: &str) -> ParseResult<RelativeSize> {
-    // FIXME: Bad copy. Can't match &str
-    match str.to_str() {
-      ~"smaller" => Value(Smaller),
-      ~"larger" => Value(Larger),
-      _ => Fail
-    }
-}
-
-fn parse_font_size(_str: &str) -> ParseResult<CSSFontSize> {
-    // TODO: complete me
-    Value(LengthSize(Px(14.0)))
-}
-
-// For width / height, and anything else with the same attribute values
-fn parse_box_sizing(str : &str) -> ParseResult<BoxSizing> {
-    // FIXME: Bad copy. Can't match &str
-    match str.to_str() {
-      ~"auto" => Value(BoxAuto),
-      ~"inherit" => CSSInherit,
-        _ => Fail
-    }
-}
-
-fn parse_display_type(str : &str) -> ParseResult<CSSDisplay> {
-    // FIXME: Bad copy. Can't match &str
-    match str.to_str() {
-      ~"inline" => Value(DisplayInline),
-      ~"block" => Value(DisplayBlock),
-      ~"none" => Value(DisplayNone),
-      _ => { #debug["Recieved unknown display value '%s'", str]; Fail }
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use css::lexer::spawn_css_lexer_from_string;
-    use css::parser::build_stylesheet;
-    use newcss::values::{Stylesheet, Element, FontSize, Width, Height};
-    
-    // TODO: use helper methods to create test values
-
-    #[test]
-    fn should_match_font_sizes() {
-        let input = ~"* {font-size:12px; font-size:inherit; font-size:200%; font-size:x-small}";
-        let token_port = spawn_css_lexer_from_string(move input);
-        let _actual_rule = build_stylesheet(move token_port);
-        let _expected_rule : Stylesheet = ~[~(~[~Element(~"*", ~[])],
-                                             ~[FontSize(Specified(LengthSize(Px(12.0)))),
-                                               FontSize(Specified(PercentSize(100.0))),
-                                               FontSize(Specified(PercentSize(200.0))),
-                                               FontSize(Specified(LengthSize(Px(12.0))))])];
-
-        // TODO: fix me once StyleDeclaration is a trait, not an enum
-        //assert actual_rule == expected_rule;
-    }
-
-    #[test]
-    fn should_match_width_height() {
-        let input = ~"* {width:20%; height:auto; width:20px; width:3in; height:70px; height:30px}";
-        let token_port = spawn_css_lexer_from_string(move input);
-        let _actual_rule = build_stylesheet(move token_port);
-        let _expected_rule : Stylesheet = ~[~(~[~Element(~"*", ~[])],
-                                             ~[Width(Specified(BoxPercent(20.0))),
-                                               Height(Specified(BoxAuto)),
-                                               Width(Specified(BoxLength(Px(20.0)))),
-                                               Width(Specified(BoxLength(Px(216.0)))),
-                                               Height(Specified(BoxLength(Px(70.0)))),
-                                               Height(Specified(BoxLength(Px(30.0))))])];
-
-        // TODO: fix me once StyleDeclaration is a trait, not an enum
-        //assert actual_rule == expected_rule;
-    }
-}