Remove no longer required dependencies

With the update to rand 0.6.4 we no longer require the dependencies to
rustc_version, semver, and semver-parser. Hence, this change removes
them.

Delete subrepo rustc_version/:rustc_version
Delete subrepo semver/:semver
Delete subrepo semver-parser/:semver-parser

1 files changed, 0 insertions, 66 deletions

diff --git a/semver-parser/src/common.rs b/semver-parser/src/common.rs
deleted file mode 100644
index 267b4d9..0000000
--- a/semver-parser/src/common.rs
+++ /dev/null
@@ -1,66 +0,0 @@
-use version::Identifier;
-use recognize::{Recognize, Alt, OneOrMore, Inclusive, OneByte};
-use std::str::from_utf8;
-
-// by the time we get here, we know that it's all valid characters, so this doesn't need to return
-// a result or anything
-fn parse_meta(s: &str) -> Vec<Identifier> {
-    // Originally, I wanted to implement this method via calling parse, but parse is tolerant of
-    // leading zeroes, and we want anything with leading zeroes to be considered alphanumeric, not
-    // numeric. So the strategy is to check with a recognizer first, and then call parse once
-    // we've determined that it's a number without a leading zero.
-    s.split(".")
-        .map(|part| {
-            // another wrinkle: we made sure that any number starts with a
-            // non-zero. But there's a problem: an actual zero is a number, yet
-            // gets left out by this heuristic. So let's also check for the
-            // single, lone zero.
-            if is_alpha_numeric(part) {
-                Identifier::AlphaNumeric(part.to_string())
-            } else {
-                // we can unwrap here because we know it is only digits due to the regex
-                Identifier::Numeric(part.parse().unwrap())
-            }
-        }).collect()
-}
-
-// parse optional metadata (preceded by the prefix character)
-pub fn parse_optional_meta(s: &[u8], prefix_char: u8)-> Result<(Vec<Identifier>, usize), String> {
-    if let Some(len) = prefix_char.p(s) {
-        let start = len;
-        if let Some(len) = letters_numbers_dash_dot(&s[start..]) {
-            let end = start + len;
-            Ok((parse_meta(from_utf8(&s[start..end]).unwrap()), end))
-        } else {
-            Err("Error parsing prerelease".to_string())
-        }
-    } else {
-        Ok((Vec::new(), 0))
-    }
-}
-
-pub fn is_alpha_numeric(s: &str) -> bool {
-    if let Some((_val, len)) = numeric_identifier(s.as_bytes()) {
-        // Return true for number with leading zero
-        // Note: doing it this way also handily makes overflow fail over.
-        len != s.len()
-    } else {
-        true
-    }
-}
-
-// Note: could plumb overflow error up to return value as Result
-pub fn numeric_identifier(s: &[u8]) -> Option<(u64, usize)> {
-    if let Some(len) = Alt(b'0', OneOrMore(Inclusive(b'0'..b'9'))).p(s) {
-        from_utf8(&s[0..len]).unwrap().parse().ok().map(|val| (val, len))
-    } else {
-        None
-    }
-}
-
-pub fn letters_numbers_dash_dot(s: &[u8]) -> Option<usize> {
-    OneOrMore(OneByte(|c| c == b'-' || c == b'.' ||
-        (b'0' <= c && c <= b'9') ||
-        (b'a' <= c && c <= b'z') ||
-        (b'A' <= c && c <= b'Z'))).p(s)
-}