Add structopt dependency in version 0.3.7

This patch series replaces argparse with structopt in the argument
handling code. As a first step, we need structopt as a dependency.

Import subrepo structopt/:structopt at efbdda4753592e27bc430fb01f7b9650b2f3174d
Import subrepo bitflags/:bitflags at 30668016aca6bd3b02c766e8347e0b4080d4c296
Import subrepo clap/:clap at 784524f7eb193e35f81082cc69454c8c21b948f7
Import subrepo heck/:heck at 093d56fbf001e1506e56dbfa38631d99b1066df1
Import subrepo proc-macro-error/:proc-macro-error at 6c4cfe79a622c5de8ae68557993542be46eacae2
Import subrepo proc-macro2/:proc-macro2 at d5d48eddca4566e5438e8a2cbed4a74e049544de
Import subrepo quote/:quote at 727436c6c137b20f0f34dde5d8fda2679b9747ad
Import subrepo rustversion/:rustversion at 0c5663313516263059ce9059ef81fc7a1cf655ca
Import subrepo syn-mid/:syn-mid at 5d3d85414a9e6674e1857ec22a87b96e04a6851a
Import subrepo syn/:syn at e87c27e87f6f4ef8919d0372bdb056d53ef0d8f3
Import subrepo textwrap/:textwrap at abcd618beae3f74841032aa5b53c1086b0a57ca2
Import subrepo unicode-segmentation/:unicode-segmentation at 637c9874c4fe0c205ff27787faf150a40295c6c3
Import subrepo unicode-width/:unicode-width at 3033826f8bf05e82724140a981d5941e48fce393
Import subrepo unicode-xid/:unicode-xid at 4baae9fffb156ba229665b972a9cd5991787ceb7

1 files changed, 58 insertions, 0 deletions

diff --git a/unicode-width/README.md b/unicode-width/README.md
new file mode 100644
index 0000000..595e163
--- /dev/null
+++ b/unicode-width/README.md
@@ -0,0 +1,58 @@
+# unicode-width
+
+Determine displayed width of `char` and `str` types according to
+[Unicode Standard Annex #11][UAX11] rules.
+
+[UAX11]: http://www.unicode.org/reports/tr11/
+
+[![Build Status](https://travis-ci.org/unicode-rs/unicode-width.svg)](https://travis-ci.org/unicode-rs/unicode-width)
+
+[Documentation](https://unicode-rs.github.io/unicode-width/unicode_width/index.html)
+
+```rust
+extern crate unicode_width;
+
+use unicode_width::UnicodeWidthStr;
+
+fn main() {
+    let teststr = "Ｈｅｌｌｏ, ｗｏｒｌｄ!";
+    let width = UnicodeWidthStr::width(teststr);
+    println!("{}", teststr);
+    println!("The above string is {} columns wide.", width);
+    let width = teststr.width_cjk();
+    println!("The above string is {} columns wide (CJK).", width);
+}
+```
+
+**NOTE:** The computed width values may not match the actual rendered column
+width. For example, the woman scientist emoji comprises of a woman emoji, a
+zero-width joiner and a microscope emoji.
+
+```rust
+extern crate unicode_width;
+use unicode_width::UnicodeWidthStr;
+
+fn main() {
+    assert_eq!(UnicodeWidthStr::width("👩"), 2); // Woman
+    assert_eq!(UnicodeWidthStr::width("🔬"), 2); // Microscope
+    assert_eq!(UnicodeWidthStr::width("👩‍🔬"), 4); // Woman scientist
+}
+```
+
+See [Unicode Standard Annex #11][UAX11] for precise details on what is and isn't
+covered by this crate.
+
+## features
+
+unicode-width does not depend on libstd, so it can be used in crates
+with the `#![no_std]` attribute.
+
+## crates.io
+
+You can use this package in your project by adding the following
+to your `Cargo.toml`:
+
+```toml
+[dependencies]
+unicode-width = "0.1.7"
+```