From 5e20a29b4fdc8a2d442d1093681b396dcb4b816b Mon Sep 17 00:00:00 2001 From: Robin Krahl Date: Tue, 7 Jan 2020 11:18:04 +0000 Subject: 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 --- syn/examples/lazy-static/example/Cargo.toml | 10 ++++++++++ syn/examples/lazy-static/example/src/main.rs | 20 ++++++++++++++++++++ 2 files changed, 30 insertions(+) create mode 100644 syn/examples/lazy-static/example/Cargo.toml create mode 100644 syn/examples/lazy-static/example/src/main.rs (limited to 'syn/examples/lazy-static/example') diff --git a/syn/examples/lazy-static/example/Cargo.toml b/syn/examples/lazy-static/example/Cargo.toml new file mode 100644 index 0000000..716b08c --- /dev/null +++ b/syn/examples/lazy-static/example/Cargo.toml @@ -0,0 +1,10 @@ +[package] +name = "example" +version = "0.0.0" +authors = ["David Tolnay "] +edition = "2018" +publish = false + +[dependencies] +lazy_static = { path = "../lazy-static" } +regex = "0.2" diff --git a/syn/examples/lazy-static/example/src/main.rs b/syn/examples/lazy-static/example/src/main.rs new file mode 100644 index 0000000..c4f64af --- /dev/null +++ b/syn/examples/lazy-static/example/src/main.rs @@ -0,0 +1,20 @@ +use lazy_static::lazy_static; +use regex::Regex; + +lazy_static! { + static ref USERNAME: Regex = { + println!("Compiling username regex..."); + Regex::new("^[a-z0-9_-]{3,16}$").unwrap() + }; +} + +fn main() { + println!("Let's validate some usernames."); + validate("fergie"); + validate("will.i.am"); +} + +fn validate(name: &str) { + // The USERNAME regex is compiled lazily the first time its value is accessed. + println!("is_match({:?}): {}", name, USERNAME.is_match(name)); +} -- cgit v1.2.3