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, 75 insertions, 0 deletions

diff --git a/clap/tests/multiple_occurrences.rs b/clap/tests/multiple_occurrences.rs
new file mode 100644
index 0000000..2f92fb1
--- /dev/null
+++ b/clap/tests/multiple_occurrences.rs
@@ -0,0 +1,75 @@
+extern crate clap;
+
+use clap::{App, Arg};
+
+#[test]
+fn multiple_occurrences_of_flags_long() {
+    let m = App::new("mo_flags_long")
+                .arg(Arg::from_usage("--multflag 'allowed multiple flag'")
+                    .multiple(true))
+                .arg(Arg::from_usage("--flag 'disallowed multiple flag'"))
+                .get_matches_from(vec![
+                    "",
+                    "--multflag",
+                    "--flag",
+                    "--multflag"
+                    ]);
+    assert!(m.is_present("multflag"));
+    assert_eq!(m.occurrences_of("multflag"), 2);
+    assert!(m.is_present("flag"));
+    assert_eq!(m.occurrences_of("flag"), 1)
+}
+
+#[test]
+fn multiple_occurrences_of_flags_short() {
+    let m = App::new("mo_flags_short")
+                .arg(Arg::from_usage("-m --multflag 'allowed multiple flag'")
+                    .multiple(true))
+                .arg(Arg::from_usage("-f --flag 'disallowed multiple flag'"))
+                .get_matches_from(vec![
+                    "",
+                    "-m",
+                    "-f",
+                    "-m"
+                    ]);
+    assert!(m.is_present("multflag"));
+    assert_eq!(m.occurrences_of("multflag"), 2);
+    assert!(m.is_present("flag"));
+    assert_eq!(m.occurrences_of("flag"), 1);
+}
+
+#[test]
+fn multiple_occurrences_of_flags_mixed() {
+    let m = App::new("mo_flags_mixed")
+                .arg(Arg::from_usage("-m, --multflag1 'allowed multiple flag'")
+                    .multiple(true))
+                .arg(Arg::from_usage("-n, --multflag2 'another allowed multiple flag'")
+                    .multiple(true))
+                .arg(Arg::from_usage("-f, --flag 'disallowed multiple flag'"))
+                .get_matches_from(vec![
+                    "",
+                    "-m",
+                    "-f",
+                    "-n",
+                    "--multflag1",
+                    "-m",
+                    "--multflag2"
+                    ]);
+    assert!(m.is_present("multflag1"));
+    assert_eq!(m.occurrences_of("multflag1"), 3);
+    assert!(m.is_present("multflag2"));
+    assert_eq!(m.occurrences_of("multflag2"), 2);
+    assert!(m.is_present("flag"));
+    assert_eq!(m.occurrences_of("flag"), 1);
+}
+
+#[test]
+fn multiple_occurrences_of_flags_large_quantity() {
+    let args : Vec<&str> = vec![""].into_iter().chain(vec!["-m"; 1024].into_iter()).collect();
+    let m = App::new("mo_flags_larg_qty")
+                .arg(Arg::from_usage("-m --multflag 'allowed multiple flag'")
+                    .multiple(true))
+                .get_matches_from(args);
+    assert!(m.is_present("multflag"));
+    assert_eq!(m.occurrences_of("multflag"), 1024);
+}