Use ASCII case-insensitivity functions from std::ascii

Author: SimonSapin

color.rs

@@ -1,6 +1,7 @@
 use std::libc::c_float;
+use std::ascii::to_ascii_lower;
+
 use ast::*;
-use super::to_ascii_lower;
 use self::color_data::{COLOR_KEYWORDS, COLOR_VALUES};
 
 mod color_data;

cssparser.rc

@@ -14,94 +14,3 @@ pub mod color;
 
 #[cfg(test)]
 mod tests;
-
-
-#[cfg(not(test))]
-static CFG_TEST: bool = false;
-
-#[cfg(test)]
-static CFG_TEST: bool = true;
-
-
-/// Return whether `string` is an ASCII case-insensitive match for `reference`,
-/// where `reference` is already in ASCII lower-case.
-pub fn eq_ascii_lower(string: &str, reference: &str) -> bool {
-    #[inline]
-    fn eq(string: &str, reference: &str) -> bool {
-        for i in range(0, string.len()) {
-            if ASCII_LOWER_MAP[string[i]] != reference[i] {
-                return false
-            }
-        }
-        true
-    }
-
-    if CFG_TEST {
-        assert!(eq(reference, reference), ~"Reference must be ASCII lower case.");
-    }
-    string.len() == reference.len() && eq(string, reference)
-}
-
-
-/// Return an ASCII lower-case copy of `string`:
-/// A-Z is replaced by a-z, non-ASCII letters are unchanged.
-pub fn to_ascii_lower(string: &str) -> ~str {
-    let mut lower = string.to_owned();
-    for i in range(0, lower.len()) {
-        lower[i] = ASCII_LOWER_MAP[lower[i]];
-    }
-    lower
-}
-
-
-#[test]
-fn test_ascii_lower() {
-    assert!(eq_ascii_lower("url()URL()uRl()Ürl", "url()url()url()Ürl"));
-    assert!(to_ascii_lower("url()URL()uRl()Ürl") == ~"url()url()url()Ürl");
-    // Dotted capital I, Kelvin sign, Sharp S.
-    assert!(eq_ascii_lower("HİKß", "hİKß"));
-    assert!(to_ascii_lower("HİKß") == ~"hİKß");
-
-    for i in range(0, 128) {
-        let c = i as char;
-        let lower = if 'A' <= c && c <= 'Z' { c + 'a' - 'A' } else { c };
-        assert!(ASCII_LOWER_MAP[i] as char == lower)
-    }
-}
-
-
-// This is UTF8-safe because only bytes in the ASCII range are affected.
-static ASCII_LOWER_MAP: &'static [u8] = &[
-    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-    0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
-    0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
-    0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
-    0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
-    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
-    0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
-    0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-    0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
-    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-    0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
-    0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-    0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
-    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-    0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
-    0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
-    0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
-    0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
-    0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
-    0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
-    0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
-    0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
-    0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
-    0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
-    0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
-    0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
-    0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
-    0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
-    0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
-    0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
-    0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
-];

parser.rs

@@ -12,10 +12,10 @@
 
 use std::iterator::Iterator;
 use std::vec;
+use std::ascii::eq_ignore_ascii_case;
 
 use ast::*;
 use tokenizer::*;
-use super::eq_ascii_lower;
 
 
 // TODO: Use a trait?
@@ -234,7 +234,7 @@ fn parse_declaration_important(iter: &mut ComponentValueIterator) -> bool {
         Some((Ident(value), _)) => value,
         _ => return false,
     };
-    if !eq_ascii_lower(ident_value, "important") { return false }
+    if !eq_ignore_ascii_case(ident_value, "important") { return false }
     match iter.next_non_whitespace() {
         Some((Semicolon, _)) => true,
         None => true,

tokenizer.rs

@@ -5,9 +5,9 @@
 // http://dev.w3.org/csswg/css3-syntax/#tokenization
 
 use std::{str, u32, i64, f64};
+use std::ascii::eq_ignore_ascii_case;
 
 use ast::*;
-use super::eq_ascii_lower;
 
 
 struct Parser {
@@ -347,7 +347,7 @@ fn is_ident_start(parser: &mut Parser) -> bool {
 fn consume_ident_like(parser: &mut Parser) -> ComponentValue {
     let value = consume_name(parser);
     if !parser.is_eof() && parser.current_char() == '(' {
-        if eq_ascii_lower(value, "url") { consume_url(parser) }
+        if eq_ignore_ascii_case(value, "url") { consume_url(parser) }
         else { Function(value, consume_block(parser, CloseParenthesis)) }
     } else {
         Ident(value)