Fix spelling errors and capitalization.

48 files changed, 64 insertions, 64 deletions

diff --git a/src/libcollections/lib.rs b/src/libcollections/lib.rs
index 175597c77f6..834c9549733 100644
--- a/src/libcollections/lib.rs
+++ b/src/libcollections/lib.rs
@@ -289,7 +289,7 @@ pub trait Set<T>: Collection {
 }
 
 /// A mutable collection of values which are distinct from one another that
-/// can be mutaed.
+/// can be mutated.
 pub trait MutableSet<T>: Set<T> + Mutable {
     /// Adds a value to the set. Returns `true` if the value was not already
     /// present in the set.
diff --git a/src/libcollections/ringbuf.rs b/src/libcollections/ringbuf.rs
index c71367265db..3665535e720 100644
--- a/src/libcollections/ringbuf.rs
+++ b/src/libcollections/ringbuf.rs
@@ -132,7 +132,7 @@ impl<T> RingBuf<T> {
               elts: Vec::from_fn(cmp::max(MINIMUM_CAPACITY, n), |_| None)}
     }
 
-    /// Retrieva an element in the `RingBuf` by index.
+    /// Retrieve an element in the `RingBuf` by index.
     ///
     /// Fails if there is no element with the given index.
     ///
diff --git a/src/libcollections/smallintmap.rs b/src/libcollections/smallintmap.rs
index b3b3bb1ea22..dd3a639aeac 100644
--- a/src/libcollections/smallintmap.rs
+++ b/src/libcollections/smallintmap.rs
@@ -324,7 +324,7 @@ impl<V:Clone> SmallIntMap<V> {
     /// Updates a value in the map. If the key already exists in the map,
     /// modifies the value with `ff` taking `oldval, newval`.
     /// Otherwise, sets the value to `newval`.
-    /// Returasn `true` if the key did not already exist in the map.
+    /// Returns `true` if the key did not already exist in the map.
     ///
     /// # Example
     ///
diff --git a/src/libcollections/str.rs b/src/libcollections/str.rs
index c13695e2b84..88c683ef44e 100644
--- a/src/libcollections/str.rs
+++ b/src/libcollections/str.rs
@@ -44,7 +44,7 @@
 //!
 //! # Representation
 //!
-//! Rust's string type, `str`, is a sequence of unicode scalar values encoded as a
+//! Rust's string type, `str`, is a sequence of Unicode scalar values encoded as a
 //! stream of UTF-8 bytes. All strings are guaranteed to be validly encoded UTF-8
 //! sequences. Additionally, strings are not null-terminated and can contain null
 //! bytes.
diff --git a/src/libcore/char.rs b/src/libcore/char.rs
index 95267a8f9e5..c870f1b8f70 100644
--- a/src/libcore/char.rs
+++ b/src/libcore/char.rs
@@ -201,7 +201,7 @@ pub fn escape_unicode(c: char, f: |char|) {
 /// - Tab, CR and LF are escaped as '\t', '\r' and '\n' respectively.
 /// - Single-quote, double-quote and backslash chars are backslash-escaped.
 /// - Any other chars in the range [0x20,0x7e] are not escaped.
-/// - Any other chars are given hex unicode escapes; see `escape_unicode`.
+/// - Any other chars are given hex Unicode escapes; see `escape_unicode`.
 ///
 pub fn escape_default(c: char, f: |char|) {
     match c {
@@ -290,7 +290,7 @@ pub trait Char {
     /// * Single-quote, double-quote and backslash chars are backslash-
     ///   escaped.
     /// * Any other chars in the range [0x20,0x7e] are not escaped.
-    /// * Any other chars are given hex unicode escapes; see `escape_unicode`.
+    /// * Any other chars are given hex Unicode escapes; see `escape_unicode`.
     fn escape_default(&self, f: |char|);
 
     /// Returns the amount of bytes this character would need if encoded in
diff --git a/src/libcore/intrinsics.rs b/src/libcore/intrinsics.rs
index 9636ce6a736..a3d63bbe06c 100644
--- a/src/libcore/intrinsics.rs
+++ b/src/libcore/intrinsics.rs
@@ -311,7 +311,7 @@ extern "rust-intrinsic" {
 
     /// Gives the address for the return value of the enclosing function.
     ///
-    /// Using this instrinsic in a function that does not use an out pointer
+    /// Using this intrinsic in a function that does not use an out pointer
     /// will trigger a compiler error.
     pub fn return_address() -> *const u8;
 
diff --git a/src/libcore/str.rs b/src/libcore/str.rs
index b067e6299ee..d6f35b0dcc6 100644
--- a/src/libcore/str.rs
+++ b/src/libcore/str.rs
@@ -1128,7 +1128,7 @@ pub trait StrSlice<'a> {
     fn contains_char(&self, needle: char) -> bool;
 
     /// An iterator over the characters of `self`. Note, this iterates
-    /// over unicode code-points, not unicode graphemes.
+    /// over Unicode code-points, not Unicode graphemes.
     ///
     /// # Example
     ///
@@ -1505,7 +1505,7 @@ pub trait StrSlice<'a> {
     /// Pluck a character out of a string and return the index of the next
     /// character.
     ///
-    /// This function can be used to iterate over the unicode characters of a
+    /// This function can be used to iterate over the Unicode characters of a
     /// string.
     ///
     /// # Example
@@ -1549,7 +1549,7 @@ pub trait StrSlice<'a> {
     /// # Return value
     ///
     /// A record {ch: char, next: uint} containing the char value and the byte
-    /// index of the next unicode character.
+    /// index of the next Unicode character.
     ///
     /// # Failure
     ///
@@ -1559,7 +1559,7 @@ pub trait StrSlice<'a> {
 
     /// Given a byte position and a str, return the previous char and its position.
     ///
-    /// This function can be used to iterate over a unicode string in reverse.
+    /// This function can be used to iterate over a Unicode string in reverse.
     ///
     /// Returns 0 for next index if called on start index 0.
     ///
diff --git a/src/liblibc/lib.rs b/src/liblibc/lib.rs
index 52e5de24931..c64bfb93af3 100644
--- a/src/liblibc/lib.rs
+++ b/src/liblibc/lib.rs
@@ -65,7 +65,7 @@
 * definitions common-to-all (held in modules named c95, c99, posix88, posix01
 * and posix08) and definitions that appear only on *some* platforms (named
 * 'extra'). This would be things like significant OSX foundation kit, or Windows
-* library kernel32.dll, or various fancy glibc, linux or BSD extensions.
+* library kernel32.dll, or various fancy glibc, Linux or BSD extensions.
 *
 * In addition to the per-platform 'extra' modules, we define a module of
 * 'common BSD' libc routines that never quite made it into POSIX but show up
diff --git a/src/libnative/io/net.rs b/src/libnative/io/net.rs
index 368b5914444..cbfc673e6af 100644
--- a/src/libnative/io/net.rs
+++ b/src/libnative/io/net.rs
@@ -901,8 +901,8 @@ impl rtio::RtioUdpSocket for UdpSocket {
 //
 // It turns out that there's this nifty MSG_DONTWAIT flag which can be passed to
 // send/recv, but the niftiness wears off once you realize it only works well on
-// linux [1] [2]. This means that it's pretty easy to get a nonblocking
-// operation on linux (no flag fiddling, no affecting other objects), but not on
+// Linux [1] [2]. This means that it's pretty easy to get a nonblocking
+// operation on Linux (no flag fiddling, no affecting other objects), but not on
 // other platforms.
 //
 // To work around this constraint on other platforms, we end up using the
@@ -922,7 +922,7 @@ impl rtio::RtioUdpSocket for UdpSocket {
 // operations performed in the lock are *nonblocking* to avoid holding the mutex
 // forever.
 //
-// So, in summary, linux uses MSG_DONTWAIT and doesn't need mutexes, everyone
+// So, in summary, Linux uses MSG_DONTWAIT and doesn't need mutexes, everyone
 // else uses O_NONBLOCK and mutexes with some trickery to make sure blocking
 // reads/writes are still blocking.
 //
diff --git a/src/libnative/io/pipe_windows.rs b/src/libnative/io/pipe_windows.rs
index 95afa11f4a9..1f1880d712d 100644
--- a/src/libnative/io/pipe_windows.rs
+++ b/src/libnative/io/pipe_windows.rs
@@ -655,7 +655,7 @@ impl UnixAcceptor {
         // using the original server pipe.
         let handle = self.listener.handle;
 
-        // If we've had an artifical call to close_accept, be sure to never
+        // If we've had an artificial call to close_accept, be sure to never
         // proceed in accepting new clients in the future
         if self.inner.closed.load(atomic::SeqCst) { return Err(util::eof()) }
 
diff --git a/src/libnative/io/process.rs b/src/libnative/io/process.rs
index 0cc7158bb5d..cad2ed0b97e 100644
--- a/src/libnative/io/process.rs
+++ b/src/libnative/io/process.rs
@@ -151,7 +151,7 @@ impl rtio::RtioProcess for Process {
         #[cfg(unix)] use libc::EINVAL as ERROR;
         #[cfg(windows)] use libc::ERROR_NOTHING_TO_TERMINATE as ERROR;
 
-        // On linux (and possibly other unices), a process that has exited will
+        // On Linux (and possibly other unices), a process that has exited will
         // continue to accept signals because it is "defunct". The delivery of
         // signals will only fail once the child has been reaped. For this
         // reason, if the process hasn't exited yet, then we attempt to collect
diff --git a/src/libnative/io/timer_unix.rs b/src/libnative/io/timer_unix.rs
index 06b78a54e53..801434f8101 100644
--- a/src/libnative/io/timer_unix.rs
+++ b/src/libnative/io/timer_unix.rs
@@ -8,12 +8,12 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Timers for non-linux/non-windows OSes
+//! Timers for non-Linux/non-Windows OSes
 //!
 //! This module implements timers with a worker thread, select(), and a lot of
 //! witchcraft that turns out to be horribly inaccurate timers. The unfortunate
 //! part is that I'm at a loss of what else to do one these OSes. This is also
-//! why linux has a specialized timerfd implementation and windows has its own
+//! why Linux has a specialized timerfd implementation and windows has its own
 //! implementation (they're more accurate than this one).
 //!
 //! The basic idea is that there is a worker thread that's communicated to via a
diff --git a/src/libnative/io/tty_windows.rs b/src/libnative/io/tty_windows.rs
index e98fe1e20b1..7f344279cd5 100644
--- a/src/libnative/io/tty_windows.rs
+++ b/src/libnative/io/tty_windows.rs
@@ -15,7 +15,7 @@
 //! This module contains the implementation of a Windows specific console TTY.
 //! Also converts between UTF-16 and UTF-8. Windows has very poor support for
 //! UTF-8 and some functions will fail. In particular ReadFile and ReadConsole
-//! will fail when the codepage is set to UTF-8 and a unicode character is
+//! will fail when the codepage is set to UTF-8 and a Unicode character is
 //! entered.
 //!
 //! FIXME
diff --git a/src/libregex/lib.rs b/src/libregex/lib.rs
index 1d25a0c31d8..9f15d0a4708 100644
--- a/src/libregex/lib.rs
+++ b/src/libregex/lib.rs
@@ -381,7 +381,7 @@ extern crate rand;
 #[cfg(test)]
 extern crate regex;
 
-// unicode tables for character classes are defined in libunicode
+// Unicode tables for character classes are defined in libunicode
 extern crate unicode;
 
 pub use parse::Error;
diff --git a/src/libregex/parse.rs b/src/libregex/parse.rs
index 13b094a2cf2..c3ce7bbd9f2 100644
--- a/src/libregex/parse.rs
+++ b/src/libregex/parse.rs
@@ -620,9 +620,9 @@ impl<'a> Parser<'a> {
         }
     }
 
-    // Parses a unicode character class name, either of the form \pF where
-    // F is a one letter unicode class name or of the form \p{name} where
-    // name is the unicode class name.
+    // Parses a Unicode character class name, either of the form \pF where
+    // F is a one letter Unicode class name or of the form \p{name} where
+    // name is the Unicode class name.
     // Assumes that \p or \P has been read (and 'p' or 'P' is the current
     // character).
     fn parse_unicode_name(&mut self) -> Result<Ast, Error> {
diff --git a/src/libregex/vm.rs b/src/libregex/vm.rs
index 507a7641f22..1adaf9c92a6 100644
--- a/src/libregex/vm.rs
+++ b/src/libregex/vm.rs
@@ -364,7 +364,7 @@ impl<'t> CharReader<'t> {
     }
 
     /// Sets the previous and current character given any arbitrary byte
-    /// index (at a unicode codepoint boundary).
+    /// index (at a Unicode codepoint boundary).
     #[inline]
     pub fn set(&mut self, ic: uint) -> uint {
         self.prev = None;
diff --git a/src/librustc/back/link.rs b/src/librustc/back/link.rs
index 2877442e42b..4e4a28cc538 100644
--- a/src/librustc/back/link.rs
+++ b/src/librustc/back/link.rs
@@ -1748,7 +1748,7 @@ fn add_upstream_rust_crates(cmd: &mut Command, sess: &Session,
         //
         // We must continue to link to the upstream archives to be sure
         // to pull in native static dependencies. As the final caveat,
-        // on linux it is apparently illegal to link to a blank archive,
+        // on Linux it is apparently illegal to link to a blank archive,
         // so if an archive no longer has any object files in it after
         // we remove `lib.o`, then don't link against it at all.
         //
diff --git a/src/librustc/back/lto.rs b/src/librustc/back/lto.rs
index 4212513f56a..6c6a07f3502 100644
--- a/src/librustc/back/lto.rs
+++ b/src/librustc/back/lto.rs
@@ -162,7 +162,7 @@ pub fn run(sess: &session::Session, llmod: ModuleRef,
 
         "verify".with_c_str(|s| llvm::LLVMRustAddPass(pm, s));
 
-        time(sess.time_passes(), "LTO pases", (), |()|
+        time(sess.time_passes(), "LTO passes", (), |()|
              llvm::LLVMRunPassManager(pm, llmod));
 
         llvm::LLVMDisposePassManager(pm);
diff --git a/src/librustc/middle/const_eval.rs b/src/librustc/middle/const_eval.rs
index 03a7021b70d..2a00724cafb 100644
--- a/src/librustc/middle/const_eval.rs
+++ b/src/librustc/middle/const_eval.rs
@@ -56,7 +56,7 @@ use std::gc::{Gc, GC};
 //        copies of general constants
 //
 //        (in theory, probably not at first: if/match on integer-const
-//         conditions / descriminants)
+//         conditions / discriminants)
 //
 //   - Non-constants: everything else.
 //
diff --git a/src/librustc/middle/trans/base.rs b/src/librustc/middle/trans/base.rs
index 7c0a332ce43..5bad46e5b7c 100644
--- a/src/librustc/middle/trans/base.rs
+++ b/src/librustc/middle/trans/base.rs
@@ -1068,7 +1068,7 @@ pub fn load_ty(cx: &Block, ptr: ValueRef, t: ty::t) -> ValueRef {
     } else if ty::type_is_bool(t) {
         Trunc(cx, LoadRangeAssert(cx, ptr, 0, 2, llvm::False), Type::i1(cx.ccx()))
     } else if ty::type_is_char(t) {
-        // a char is a unicode codepoint, and so takes values from 0
+        // a char is a Unicode codepoint, and so takes values from 0
         // to 0x10FFFF inclusive only.
         LoadRangeAssert(cx, ptr, 0, 0x10FFFF + 1, llvm::False)
     } else {
diff --git a/src/librustc/middle/trans/debuginfo.rs b/src/librustc/middle/trans/debuginfo.rs
index 62cd38c1e90..8403e84f7b6 100644
--- a/src/librustc/middle/trans/debuginfo.rs
+++ b/src/librustc/middle/trans/debuginfo.rs
@@ -740,7 +740,7 @@ pub fn finalize(cx: &CrateContext) {
             "Dwarf Version".with_c_str(
                 |s| llvm::LLVMRustAddModuleFlag(cx.llmod, s, 2));
         } else {
-            // FIXME(#13611) this is a kludge fix because the linux bots have
+            // FIXME(#13611) this is a kludge fix because the Linux bots have
             //               gdb 7.4 which doesn't understand dwarf4, we should
             //               do something more graceful here.
             "Dwarf Version".with_c_str(
diff --git a/src/librustc/middle/trans/expr.rs b/src/librustc/middle/trans/expr.rs
index 53e2da6ac0f..4fe687da4b1 100644
--- a/src/librustc/middle/trans/expr.rs
+++ b/src/librustc/middle/trans/expr.rs
@@ -1386,7 +1386,7 @@ pub fn trans_adt<'a>(mut bcx: &'a Block<'a>,
         }
     }
 
-    // Now, we just overwrite the fields we've explicity specified
+    // Now, we just overwrite the fields we've explicitly specified
     for &(i, ref e) in fields.iter() {
         let dest = adt::trans_field_ptr(bcx, &*repr, addr, discr, i);
         let e_ty = expr_ty_adjusted(bcx, &**e);
diff --git a/src/librustc/middle/ty.rs b/src/librustc/middle/ty.rs
index de598fcc671..72f6338f4c9 100644
--- a/src/librustc/middle/ty.rs
+++ b/src/librustc/middle/ty.rs
@@ -903,7 +903,7 @@ pub enum sty {
     /// Substs here, possibly against intuition, *may* contain `ty_param`s.
     /// That is, even after substitution it is possible that there are type
     /// variables. This happens when the `ty_enum` corresponds to an enum
-    /// definition and not a concerete use of it. To get the correct `ty_enum`
+    /// definition and not a concrete use of it. To get the correct `ty_enum`
     /// from the tcx, use the `NodeId` from the `ast::Ty` and look it up in
     /// the `ast_ty_to_ty_cache`. This is probably true for `ty_struct` as
     /// well.`
diff --git a/src/librustc/util/snapshot_vec.rs b/src/librustc/util/snapshot_vec.rs
index 60e50c84c61..03e1559cba2 100644
--- a/src/librustc/util/snapshot_vec.rs
+++ b/src/librustc/util/snapshot_vec.rs
@@ -148,12 +148,12 @@ impl<T,U,D:SnapshotVecDelegate<T,U>> SnapshotVec<T,U,D> {
             match self.undo_log.pop().unwrap() {
                 OpenSnapshot => {
                     // This indicates a failure to obey the stack discipline.
-                    fail!("Cannot rollback an uncommited snapshot");
+                    fail!("Cannot rollback an uncommitted snapshot");
                 }
 
                 CommittedSnapshot => {
                     // This occurs when there are nested snapshots and
-                    // the inner is commited but outer is rolled back.
+                    // the inner is committed but outer is rolled back.
                 }
 
                 NewElem(i) => {
diff --git a/src/librustc_back/x86_64.rs b/src/librustc_back/x86_64.rs
index 43c4d646ec9..88cd6743192 100644
--- a/src/librustc_back/x86_64.rs
+++ b/src/librustc_back/x86_64.rs
@@ -30,7 +30,7 @@ pub fn get_target_strs(target_triple: String, target_os: abi::Os) -> target_strs
           }
 
           abi::OsWindows => {
-            // FIXME: Test this. Copied from linux (#2398)
+            // FIXME: Test this. Copied from Linux (#2398)
             "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-\
                 f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-\
                 s0:64:64-f80:128:128-n8:16:32:64-S128".to_string()
diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs
index fc8fd0d086b..74ea5af0f1c 100644
--- a/src/librustdoc/html/render.rs
+++ b/src/librustdoc/html/render.rs
@@ -1155,7 +1155,7 @@ impl Context {
 
             // We have a huge number of calls to write, so try to alleviate some
             // of the pain by using a buffered writer instead of invoking the
-            // write sycall all the time.
+            // write syscall all the time.
             let mut writer = BufferedWriter::new(w);
             if !cx.render_redirect_pages {
                 try!(layout::render(&mut writer, &cx.layout, &page,
diff --git a/src/librustdoc/stability_summary.rs b/src/librustdoc/stability_summary.rs
index bbcf38f4955..11d00fa20a4 100644
--- a/src/librustdoc/stability_summary.rs
+++ b/src/librustdoc/stability_summary.rs
@@ -11,7 +11,7 @@
 //! This module crawls a `clean::Crate` and produces a summarization of the
 //! stability levels within the crate. The summary contains the module
 //! hierarchy, with item counts for every stability level per module. A parent
-//! module's count includes its childrens's.
+//! module's count includes its children's.
 
 use std::ops::Add;
 use std::num::Zero;
diff --git a/src/librustrt/args.rs b/src/librustrt/args.rs
index 6ac36f8b856..4c444036e1d 100644
--- a/src/librustrt/args.rs
+++ b/src/librustrt/args.rs
@@ -14,7 +14,7 @@
 //! the processes `argc` and `argv` arguments to be stored
 //! in a globally-accessible location for use by the `os` module.
 //!
-//! Only valid to call on linux. Mac and Windows use syscalls to
+//! Only valid to call on Linux. Mac and Windows use syscalls to
 //! discover the command line arguments.
 //!
 //! FIXME #7756: Would be nice for this to not exist.
diff --git a/src/librustrt/c_str.rs b/src/librustrt/c_str.rs
index d68fef30622..000def0cc3b 100644
--- a/src/librustrt/c_str.rs
+++ b/src/librustrt/c_str.rs
@@ -19,7 +19,7 @@ string types are *not* null terminated.
 
 The other problem with translating Rust strings to C strings is that Rust
 strings can validly contain a null-byte in the middle of the string (0 is a
-valid unicode codepoint). This means that not all Rust strings can actually be
+valid Unicode codepoint). This means that not all Rust strings can actually be
 translated to C strings.
 
 # Creation of a C string
diff --git a/src/librustrt/local_ptr.rs b/src/librustrt/local_ptr.rs
index ef56cd3b1da..8ce12a5157d 100644
--- a/src/librustrt/local_ptr.rs
+++ b/src/librustrt/local_ptr.rs
@@ -107,10 +107,10 @@ pub mod compiled {
     // efficient sequence of instructions. This also involves dealing with fun
     // stuff in object files and whatnot. Regardless, it turns out this causes
     // trouble with green threads and lots of optimizations turned on. The
-    // following case study was done on linux x86_64, but I would imagine that
+    // following case study was done on Linux x86_64, but I would imagine that
     // other platforms are similar.
     //
-    // On linux, the instruction sequence for loading the tls pointer global
+    // On Linux, the instruction sequence for loading the tls pointer global
     // looks like:
     //
     //      mov %fs:0x0, %rax
diff --git a/src/libserialize/json.rs b/src/libserialize/json.rs
index b37b4588af6..b29200597aa 100644
--- a/src/libserialize/json.rs
+++ b/src/libserialize/json.rs
@@ -278,7 +278,7 @@ pub fn error_str(error: ErrorCode) -> &'static str {
         UnrecognizedHex => "invalid \\u escape (unrecognized hex)",
         NotFourDigit => "invalid \\u escape (not four digits)",
         NotUtf8 => "contents not utf-8",
-        InvalidUnicodeCodePoint => "invalid unicode code point",
+        InvalidUnicodeCodePoint => "invalid Unicode code point",
         LoneLeadingSurrogateInHexEscape => "lone leading surrogate in hex escape",
         UnexpectedEndOfHexEscape => "unexpected end of hex escape",
     }
diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs
index 905012b7bf3..cb0adaadfe8 100644
--- a/src/libstd/io/mod.rs
+++ b/src/libstd/io/mod.rs
@@ -1418,7 +1418,7 @@ pub trait Buffer: Reader {
     fn consume(&mut self, amt: uint);
 
     /// Reads the next line of input, interpreted as a sequence of UTF-8
-    /// encoded unicode codepoints. If a newline is encountered, then the
+    /// encoded Unicode codepoints. If a newline is encountered, then the
     /// newline is contained in the returned string.
     ///
     /// # Example
diff --git a/src/libstd/path/mod.rs b/src/libstd/path/mod.rs
index 86036c2a2dc..5a5068f4d01 100644
--- a/src/libstd/path/mod.rs
+++ b/src/libstd/path/mod.rs
@@ -841,7 +841,7 @@ impl<'a, P: GenericPath> Display<'a, P> {
     /// Returns the path as a possibly-owned string.
     ///
     /// If the path is not UTF-8, invalid sequences will be replaced with the
-    /// unicode replacement char. This involves allocation.
+    /// Unicode replacement char. This involves allocation.
     #[inline]
     pub fn as_maybe_owned(&self) -> MaybeOwned<'a> {
         String::from_utf8_lossy(if self.filename {
diff --git a/src/libstd/rt/backtrace.rs b/src/libstd/rt/backtrace.rs
index cf99efd24e6..c28b6c144a2 100644
--- a/src/libstd/rt/backtrace.rs
+++ b/src/libstd/rt/backtrace.rs
@@ -138,7 +138,7 @@ fn demangle(writer: &mut Writer, s: &str) -> IoResult<()> {
                         "$RP$" => ")",
                         "$C$"  => ",",
 
-                        // in theory we can demangle any unicode code point, but
+                        // in theory we can demangle any Unicode code point, but
                         // for simplicity we just catch the common ones.
                         "$x20" => " ",
                         "$x27" => "'",
@@ -461,7 +461,7 @@ mod imp {
         //
         // An additionally oddity in this function is that we initialize the
         // filename via self_exe_name() to pass to libbacktrace. It turns out
-        // that on linux libbacktrace seamlessly gets the filename of the
+        // that on Linux libbacktrace seamlessly gets the filename of the
         // current executable, but this fails on freebsd. by always providing
         // it, we make sure that libbacktrace never has a reason to not look up
         // the symbols. The libbacktrace API also states that the filename must
@@ -631,7 +631,7 @@ mod imp {
             (val & !1) as libc::uintptr_t
         }
 
-        // This function also doesn't exist on android or arm/linux, so make it
+        // This function also doesn't exist on Android or ARM/Linux, so make it
         // a no-op
         #[cfg(target_os = "android")]
         #[cfg(target_os = "linux", target_arch = "arm")]
diff --git a/src/libstd/rtdeps.rs b/src/libstd/rtdeps.rs
index 4267d6020b2..35a87137115 100644
--- a/src/libstd/rtdeps.rs
+++ b/src/libstd/rtdeps.rs
@@ -22,7 +22,7 @@ extern {}
 // LLVM implements the `frem` instruction as a call to `fmod`, which lives in
 // libm. Hence, we must explicitly link to it.
 //
-// On linux librt and libdl are indirect dependencies via rustrt,
+// On Linux, librt and libdl are indirect dependencies via rustrt,
 // and binutils 2.22+ won't add them automatically
 #[cfg(target_os = "linux")]
 #[link(name = "dl")]
diff --git a/src/libstd/time/duration.rs b/src/libstd/time/duration.rs
index 17dba9af9e7..85aed47265f 100644
--- a/src/libstd/time/duration.rs
+++ b/src/libstd/time/duration.rs
@@ -21,7 +21,7 @@ use result::{Result, Ok, Err};
 
 /// The number of nanoseconds in a microsecond.
 static NANOS_PER_MICRO: i32 = 1000;
-/// The number of nanosecdons in a millisecond.
+/// The number of nanoseconds in a millisecond.
 static NANOS_PER_MILLI: i32 = 1000_000;
 /// The number of nanoseconds in seconds.
 static NANOS_PER_SEC: i32 = 1_000_000_000;
diff --git a/src/libsyntax/ext/format.rs b/src/libsyntax/ext/format.rs
index 0994abaadc7..3c6cf54a6cf 100644
--- a/src/libsyntax/ext/format.rs
+++ b/src/libsyntax/ext/format.rs
@@ -501,7 +501,7 @@ impl<'a, 'b> Context<'a, 'b> {
         // Right now there is a bug such that for the expression:
         //      foo(bar(&1))
         // the lifetime of `1` doesn't outlast the call to `bar`, so it's not
-        // vald for the call to `foo`. To work around this all arguments to the
+        // valid for the call to `foo`. To work around this all arguments to the
         // format! string are shoved into locals. Furthermore, we shove the address
         // of each variable because we don't want to move out of the arguments
         // passed to this function.
diff --git a/src/libsyntax/parse/lexer/mod.rs b/src/libsyntax/parse/lexer/mod.rs
index 17249628989..da43f08a4e5 100644
--- a/src/libsyntax/parse/lexer/mod.rs
+++ b/src/libsyntax/parse/lexer/mod.rs
@@ -1114,7 +1114,7 @@ impl<'a> StringReader<'a> {
                 self.bump();
                 valid &= self.scan_char_or_byte(ch_start, ch, /* ascii_only = */ false, '"');
             }
-            // adjust for the ACSII " at the start of the literal
+            // adjust for the ASCII " at the start of the literal
             let id = if valid { self.name_from(start_bpos + BytePos(1)) }
                      else { token::intern("??") };
             self.bump();
diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index afea9e01de9..d5bc1bfe956 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -180,7 +180,7 @@ pub fn to_string(f: |&mut State| -> IoResult<()>) -> String {
 
 // FIXME (Issue #16472): the thing_to_string_impls macro should go away
 // after we revise the syntax::ext::quote::ToToken impls to go directly
-// to token-trees instea of thing -> string -> token-trees.
+// to token-trees instead of thing -> string -> token-trees.
 
 macro_rules! thing_to_string_impls {
     ($to_string:ident) => {
diff --git a/src/libsyntax/util/parser_testing.rs b/src/libsyntax/util/parser_testing.rs
index f50739a7069..7b96cf3c60d 100644
--- a/src/libsyntax/util/parser_testing.rs
+++ b/src/libsyntax/util/parser_testing.rs
@@ -81,9 +81,9 @@ pub fn strs_to_idents(ids: Vec<&str> ) -> Vec<ast::Ident> {
 
 /// Does the given string match the pattern? whitespace in the first string
 /// may be deleted or replaced with other whitespace to match the pattern.
-/// this function is unicode-ignorant; fortunately, the careful design of
+/// this function is Unicode-ignorant; fortunately, the careful design of
 /// UTF-8 mitigates this ignorance.  In particular, this function only collapses
-/// sequences of \n, \r, ' ', and \t, but it should otherwise tolerate unicode
+/// sequences of \n, \r, ' ', and \t, but it should otherwise tolerate Unicode
 /// chars. Unsurprisingly, it doesn't do NKF-normalization(?).
 pub fn matches_codepattern(a : &str, b : &str) -> bool {
     let mut idx_a = 0;
diff --git a/src/libunicode/u_char.rs b/src/libunicode/u_char.rs
index 91e7589b8ca..d8665143854 100644
--- a/src/libunicode/u_char.rs
+++ b/src/libunicode/u_char.rs
@@ -120,7 +120,7 @@ pub fn is_digit(c: char) -> bool {
 /// Convert a char to its uppercase equivalent
 ///
 /// The case-folding performed is the common or simple mapping:
-/// it maps one unicode codepoint (one char in Rust) to its uppercase equivalent according
+/// it maps one Unicode codepoint (one char in Rust) to its uppercase equivalent according
 /// to the Unicode database at ftp://ftp.unicode.org/Public/UNIDATA/UnicodeData.txt
 /// The additional SpecialCasing.txt is not considered here, as it expands to multiple
 /// codepoints in some cases.
@@ -233,7 +233,7 @@ pub trait UnicodeChar {
     /// Converts a character to its uppercase equivalent.
     ///
     /// The case-folding performed is the common or simple mapping: it maps
-    /// one unicode codepoint (one character in Rust) to its uppercase
+    /// one Unicode codepoint (one character in Rust) to its uppercase
     /// equivalent according to the Unicode database [1]. The additional
     /// `SpecialCasing.txt` is not considered here, as it expands to multiple
     /// codepoints in some cases.
diff --git a/src/test/run-make/unicode-input/multiple_files.rs b/src/test/run-make/unicode-input/multiple_files.rs
index 31802dd9f06..7c6d97dd5a3 100644
--- a/src/test/run-make/unicode-input/multiple_files.rs
+++ b/src/test/run-make/unicode-input/multiple_files.rs
@@ -20,7 +20,7 @@ use std::rand::{task_rng, Rng};
 
 fn random_char() -> char {
     let mut rng = task_rng();
-    // a subset of the XID_start unicode table (ensuring that the
+    // a subset of the XID_start Unicode table (ensuring that the
     // compiler doesn't fail with an "unrecognised token" error)
     let (lo, hi): (u32, u32) = match rng.gen_range(1u32, 4u32 + 1) {
         1 => (0x41, 0x5a),
diff --git a/src/test/run-make/unicode-input/span_length.rs b/src/test/run-make/unicode-input/span_length.rs
index 913f1318ebf..e213e266548 100644
--- a/src/test/run-make/unicode-input/span_length.rs
+++ b/src/test/run-make/unicode-input/span_length.rs
@@ -19,7 +19,7 @@ use std::rand::{task_rng, Rng};
 
 fn random_char() -> char {
     let mut rng = task_rng();
-    // a subset of the XID_start unicode table (ensuring that the
+    // a subset of the XID_start Unicode table (ensuring that the
     // compiler doesn't fail with an "unrecognised token" error)
     let (lo, hi): (u32, u32) = match rng.gen_range(1u32, 4u32 + 1) {
         1 => (0x41, 0x5a),
diff --git a/src/test/run-pass/no-std-xcrate2.rs b/src/test/run-pass/no-std-xcrate2.rs
index b19541a0b1a..dcafb5f451f 100644
--- a/src/test/run-pass/no-std-xcrate2.rs
+++ b/src/test/run-pass/no-std-xcrate2.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// ignore-test: this has weird linking problems on linux, and it probably needs a
+// ignore-test: this has weird linking problems on Linux, and it probably needs a
 //             solution along the lines of disabling segmented stacks and/or the
 //             stack checks.
 // aux-build:no_std_crate.rs
@@ -20,7 +20,7 @@
 
 extern crate no_std_crate;
 
-// This is an unfortunate thing to have to do on linux :(
+// This is an unfortunate thing to have to do on Linux :(
 #[cfg(target_os = "linux")]
 #[doc(hidden)]
 pub mod linkhack {
diff --git a/src/test/run-pass/nullable-pointer-ffi-compat.rs b/src/test/run-pass/nullable-pointer-ffi-compat.rs
index 548a16bd120..b5c541b0c63 100644
--- a/src/test/run-pass/nullable-pointer-ffi-compat.rs
+++ b/src/test/run-pass/nullable-pointer-ffi-compat.rs
@@ -9,7 +9,7 @@
 // except according to those terms.
 
 // #11303, #11040:
-// This would previously crash on i686 linux due to abi differences
+// This would previously crash on i686 Linux due to abi differences
 // between returning an Option<T> and T, where T is a non nullable
 // pointer.
 // If we have an enum with two variants such that one is zero sized
diff --git a/src/test/run-pass/tag-align-dyn-u64.rs b/src/test/run-pass/tag-align-dyn-u64.rs
index a260ad66ce2..0fc20ef66b3 100644
--- a/src/test/run-pass/tag-align-dyn-u64.rs
+++ b/src/test/run-pass/tag-align-dyn-u64.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// ignore-linux #7340 fails on 32-bit linux
+// ignore-linux #7340 fails on 32-bit Linux
 // ignore-macos #7340 fails on 32-bit macos
 
 use std::mem;
diff --git a/src/test/run-pass/tag-align-dyn-variants.rs b/src/test/run-pass/tag-align-dyn-variants.rs
index 1e22f0f3dee..130c2c5e2e3 100644
--- a/src/test/run-pass/tag-align-dyn-variants.rs
+++ b/src/test/run-pass/tag-align-dyn-variants.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// ignore-linux #7340 fails on 32-bit linux
+// ignore-linux #7340 fails on 32-bit Linux
 // ignore-macos #7340 fails on 32-bit macos
 
 use std::mem;
diff --git a/src/test/run-pass/tag-align-u64.rs b/src/test/run-pass/tag-align-u64.rs
index f3996065936..8942e0b6b5d 100644
--- a/src/test/run-pass/tag-align-u64.rs
+++ b/src/test/run-pass/tag-align-u64.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// ignore-linux #7340 fails on 32-bit linux
+// ignore-linux #7340 fails on 32-bit Linux
 // ignore-macos #7340 fails on 32-bit macos
 
 use std::mem;