diff options
Diffstat (limited to 'src/libregex/parse.rs')
| -rw-r--r-- | src/libregex/parse.rs | 57 |
1 files changed, 27 insertions, 30 deletions
diff --git a/src/libregex/parse.rs b/src/libregex/parse.rs index 78558a32266..0cd8df73c37 100644 --- a/src/libregex/parse.rs +++ b/src/libregex/parse.rs @@ -286,7 +286,7 @@ impl<'a> Parser<'a> { true => Ok(()), false => { self.err(format!("Expected {} but got EOF.", - expected).as_slice()) + expected)[]) } } } @@ -295,10 +295,10 @@ impl<'a> Parser<'a> { match self.next_char() { true if self.cur() == expected => Ok(()), true => self.err(format!("Expected '{}' but got '{}'.", - expected, self.cur()).as_slice()), + expected, self.cur())[]), false => { self.err(format!("Expected '{}' but got EOF.", - expected).as_slice()) + expected)[]) } } } @@ -443,14 +443,14 @@ impl<'a> Parser<'a> { Literal(c3, _) => c2 = c3, // allow literal escapes below ast => return self.err(format!("Expected a literal, but got {}.", - ast).as_slice()), + ast)[]), } } if c2 < c { return self.err(format!("Invalid character class \ range '{}-{}'", c, - c2).as_slice()) + c2)[]) } ranges.push((c, self.cur())) } else { @@ -488,7 +488,7 @@ impl<'a> Parser<'a> { FLAG_EMPTY }; let name = self.slice(name_start, closer - 1); - match find_class(ASCII_CLASSES, name.as_slice()) { + match find_class(ASCII_CLASSES, name[]) { None => None, Some(ranges) => { self.chari = closer; @@ -513,7 +513,7 @@ impl<'a> Parser<'a> { return self.err(format!("No closing brace for counted \ repetition starting at position \ {}.", - start).as_slice()) + start)[]) } }; self.chari = closer; @@ -524,7 +524,7 @@ impl<'a> Parser<'a> { // Parse the min and max values from the regex. let (mut min, mut max): (uint, Option<uint>); if !inner.contains(",") { - min = try!(self.parse_uint(inner.as_slice())); + min = try!(self.parse_uint(inner[])); max = Some(min); } else { let pieces: Vec<&str> = inner.splitn(1, ',').collect(); @@ -546,19 +546,19 @@ impl<'a> Parser<'a> { if min > MAX_REPEAT { return self.err(format!( "{} exceeds maximum allowed repetitions ({})", - min, MAX_REPEAT).as_slice()); + min, MAX_REPEAT)[]); } if max.is_some() { let m = max.unwrap(); if m > MAX_REPEAT { return self.err(format!( "{} exceeds maximum allowed repetitions ({})", - m, MAX_REPEAT).as_slice()); + m, MAX_REPEAT)[]); } if m < min { return self.err(format!( "Max repetitions ({}) cannot be smaller than min \ - repetitions ({}).", m, min).as_slice()); + repetitions ({}).", m, min)[]); } } @@ -622,8 +622,7 @@ impl<'a> Parser<'a> { Ok(AstClass(ranges, flags)) } _ => { - self.err(format!("Invalid escape sequence '\\\\{}'", - c).as_slice()) + self.err(format!("Invalid escape sequence '\\\\{}'", c)[]) } } } @@ -643,7 +642,7 @@ impl<'a> Parser<'a> { Some(i) => i, None => return self.err(format!( "Missing '}}' for unclosed '{{' at position {}", - self.chari).as_slice()), + self.chari)[]), }; if closer - self.chari + 1 == 0 { return self.err("No Unicode class name found.") @@ -657,10 +656,10 @@ impl<'a> Parser<'a> { name = self.slice(self.chari + 1, self.chari + 2); self.chari += 1; } - match find_class(UNICODE_CLASSES, name.as_slice()) { + match find_class(UNICODE_CLASSES, name[]) { None => { return self.err(format!("Could not find Unicode class '{}'", - name).as_slice()) + name)[]) } Some(ranges) => { Ok(AstClass(ranges, negated | (self.flags & FLAG_NOCASE))) @@ -683,11 +682,11 @@ impl<'a> Parser<'a> { } } let s = self.slice(start, end); - match num::from_str_radix::<u32>(s.as_slice(), 8) { + match num::from_str_radix::<u32>(s[], 8) { Some(n) => Ok(Literal(try!(self.char_from_u32(n)), FLAG_EMPTY)), None => { self.err(format!("Could not parse '{}' as octal number.", - s).as_slice()) + s)[]) } } } @@ -705,12 +704,12 @@ impl<'a> Parser<'a> { None => { return self.err(format!("Missing '}}' for unclosed \ '{{' at position {}", - start).as_slice()) + start)[]) } Some(i) => i, }; self.chari = closer; - self.parse_hex_digits(self.slice(start, closer).as_slice()) + self.parse_hex_digits(self.slice(start, closer)[]) } // Parses a two-digit hex number. @@ -730,8 +729,7 @@ impl<'a> Parser<'a> { match num::from_str_radix::<u32>(s, 16) { Some(n) => Ok(Literal(try!(self.char_from_u32(n)), FLAG_EMPTY)), None => { - self.err(format!("Could not parse '{}' as hex number.", - s).as_slice()) + self.err(format!("Could not parse '{}' as hex number.", s)[]) } } } @@ -757,7 +755,7 @@ impl<'a> Parser<'a> { } if self.names.contains(&name) { return self.err(format!("Duplicate capture group name '{}'.", - name).as_slice()) + name)[]) } self.names.push(name.clone()); self.chari = closer; @@ -791,7 +789,7 @@ impl<'a> Parser<'a> { if sign < 0 { return self.err(format!( "Cannot negate flags twice in '{}'.", - self.slice(start, self.chari + 1)).as_slice()) + self.slice(start, self.chari + 1))[]) } sign = -1; saw_flag = false; @@ -802,7 +800,7 @@ impl<'a> Parser<'a> { if !saw_flag { return self.err(format!( "A valid flag does not follow negation in '{}'", - self.slice(start, self.chari + 1)).as_slice()) + self.slice(start, self.chari + 1))[]) } flags = flags ^ flags; } @@ -814,7 +812,7 @@ impl<'a> Parser<'a> { return Ok(()) } _ => return self.err(format!( - "Unrecognized flag '{}'.", self.cur()).as_slice()), + "Unrecognized flag '{}'.", self.cur())[]), } } } @@ -908,11 +906,11 @@ impl<'a> Parser<'a> { } fn parse_uint(&self, s: &str) -> Result<uint, Error> { - match from_str::<uint>(s) { + match s.parse::<uint>() { Some(i) => Ok(i), None => { self.err(format!("Expected an unsigned integer but got '{}'.", - s).as_slice()) + s)[]) } } } @@ -922,8 +920,7 @@ impl<'a> Parser<'a> { Some(c) => Ok(c), None => { self.err(format!("Could not decode '{}' to unicode \ - character.", - n).as_slice()) + character.", n)[]) } } } |