Use Chrono English for easy date input

Cargo.lock

@@ -27,6 +27,16 @@ dependencies = [
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "chrono-english"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "chrono 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scanlex 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.2.0"
@@ -40,6 +50,7 @@ name = "fimfareader"
 version = "0.1.0"
 dependencies = [
  "chrono 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono-english 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "nom 5.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.98 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -161,6 +172,11 @@ name = "ryu"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "scanlex"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "semver"
 version = "0.9.0"
@@ -298,6 +314,7 @@ dependencies = [
 "checksum autocfg 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "22130e92352b948e7e82a49cdb0aa94f2211761117f29e052dd397c1ac33542b"
 "checksum cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
 "checksum chrono 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "77d81f58b7301084de3b958691458a53c3f7e0b1d702f77e550b6a88e3a88abe"
+"checksum chrono-english 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "4233ee19352739cfdcb5d7c2085005b166f6170ef2845ed9eef27a8fa5f95206"
 "checksum crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
 "checksum hex 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "805026a5d0141ffc30abb3be3173848ad46a1b1664fe632428479619a3644d77"
 "checksum itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "501266b7edd0174f8530248f87f99c88fbe60ca4ef3dd486835b8d8d53136f7f"
@@ -315,6 +332,7 @@ dependencies = [
 "checksum rle-decode-fast 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cabe4fa914dec5870285fa7f71f602645da47c486e68486d2b4ceb4a343e90ac"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
 "checksum ryu 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c92464b447c0ee8c4fb3824ecc8383b81717b9f1e74ba2e72540aef7b9f82997"
+"checksum scanlex 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e6a2c84b697bc9496978f7457b17039a22b5d89c674964e8a480de4d5ddd55dc"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 "checksum serde 1.0.98 (registry+https://github.com/rust-lang/crates.io-index)" = "7fe5626ac617da2f2d9c48af5515a21d5a480dbd151e01bb1c355e26a3e68113"

Cargo.toml

@@ -11,6 +11,9 @@ lto = true
 version = "*"
 features = ["serde"]
 
+[dependencies.chrono-english]
+version = "*"
+
 [dependencies.hex]
 version = "*"
 

src/query/optimizer.rs

@@ -1,9 +1,9 @@
 //! Query optimizer.
 
-use std::str::FromStr;
-
 use chrono::prelude::*;
 
+use chrono_english::{parse_date_string, Dialect};
+
 use super::parser::{Operator, Source};
 use crate::archive::Story;
 use crate::error::{Error, Result};
@@ -58,7 +58,7 @@ fn intfn(f: IntFn, op: Operator, value: &str) -> Result<Filter> {
 }
 
 fn dtufn(f: DtuFn, op: Operator, value: &str) -> Result<Filter> {
-    let parsed = DateTime::from_str(value);
+    let parsed = parse_date_string(value, Utc::now(), Dialect::Uk);
 
     let value: DateTime<Utc> = parsed.map_err(|e| match e {
         _ => Error::query("Invalid value for date type"),