Upgrade to edition 2018

.travis.yml

@@ -6,7 +6,6 @@ os: linux
 script:
   - cargo build --verbose
   - cargo test --verbose
-  - rustdoc --test README.md -L target/debug -L target/debug/deps
   - cargo doc
 after_success: |
   [ $TRAVIS_RUST_VERSION = stable ] &&

Cargo.toml

@@ -3,7 +3,7 @@
 name = "unicode-segmentation"
 version = "1.3.0"
 authors = ["kwantam <kwantam@gmail.com>"]
-
+edition = "2018"
 homepage = "https://github.com/unicode-rs/unicode-segmentation"
 repository = "https://github.com/unicode-rs/unicode-segmentation"
 documentation = "https://unicode-rs.github.io/unicode-segmentation"

scripts/unicode.py

@@ -221,7 +221,7 @@ def emit_util_mod(f):
     #[inline]
     fn is_alphabetic(c: char) -> bool {
         match c {
-            'a' ... 'z' | 'A' ... 'Z' => true,
+            'a' ...\= 'z' | 'A' ..= 'Z' => true,
             c if c > '\x7f' => super::derived_property::Alphabetic(c),
             _ => false,
         }
@@ -230,7 +230,7 @@ def emit_util_mod(f):
     #[inline]
     fn is_numeric(c: char) -> bool {
         match c {
-            '0' ... '9' => true,
+            '0' ..= '9' => true,
             c if c > '\x7f' => super::general_category::N(c),
             _ => false,
         }

src/grapheme.rs

@@ -10,7 +10,7 @@
 
 use core::cmp;
 
-use tables::grapheme::GraphemeCat;
+use crate::tables::grapheme::GraphemeCat;
 
 /// External iterator for grapheme clusters and byte offsets.
 #[derive(Clone)]
@@ -215,7 +215,7 @@ enum PairResult {
 }
 
 fn check_pair(before: GraphemeCat, after: GraphemeCat) -> PairResult {
-    use tables::grapheme::GraphemeCat::*;
+    use crate::tables::grapheme::GraphemeCat::*;
     use self::PairResult::*;
     match (before, after) {
         (GC_CR, GC_LF) => NotBreak,  // GB3
@@ -348,7 +348,7 @@ impl GraphemeCursor {
     /// assert_eq!(cursor.is_boundary(&flags[8..], 8), Ok(true));
     /// ```
     pub fn provide_context(&mut self, chunk: &str, chunk_start: usize) {
-        use tables::grapheme as gr;
+        use crate::tables::grapheme as gr;
         assert!(chunk_start + chunk.len() == self.pre_context_offset.unwrap());
         self.pre_context_offset = None;
         if self.is_extended && chunk_start + chunk.len() == self.offset {
@@ -394,7 +394,7 @@ impl GraphemeCursor {
     }
 
     fn handle_regional(&mut self, chunk: &str, chunk_start: usize) {
-        use tables::grapheme as gr;
+        use crate::tables::grapheme as gr;
         let mut ris_count = self.ris_count.unwrap_or(0);
         for ch in chunk.chars().rev() {
             if gr::grapheme_category(ch) != gr::GC_Regional_Indicator {
@@ -414,7 +414,7 @@ impl GraphemeCursor {
     }
 
     fn handle_emoji(&mut self, chunk: &str, chunk_start: usize) {
-        use tables::grapheme as gr;
+        use crate::tables::grapheme as gr;
         for ch in chunk.chars().rev() {
             match gr::grapheme_category(ch) {
                 gr::GC_Extend => (),
@@ -460,7 +460,7 @@ impl GraphemeCursor {
     /// assert_eq!(cursor.is_boundary(flags, 0), Ok(false));
     /// ```
     pub fn is_boundary(&mut self, chunk: &str, chunk_start: usize) -> Result<bool, GraphemeIncomplete> {
-        use tables::grapheme as gr;
+        use crate::tables::grapheme as gr;
         if self.state == GraphemeState::Break {
             return Ok(true)
         }
@@ -550,7 +550,7 @@ impl GraphemeCursor {
     /// assert_eq!(cursor.next_boundary(&s[2..4], 2), Ok(None));
     /// ```
     pub fn next_boundary(&mut self, chunk: &str, chunk_start: usize) -> Result<Option<usize>, GraphemeIncomplete> {
-        use tables::grapheme as gr;
+        use crate::tables::grapheme as gr;
         if self.offset == self.len {
             return Ok(None);
         }
@@ -626,7 +626,7 @@ impl GraphemeCursor {
     /// assert_eq!(cursor.prev_boundary(&s[0..2], 0), Ok(None));
     /// ```
     pub fn prev_boundary(&mut self, chunk: &str, chunk_start: usize) -> Result<Option<usize>, GraphemeIncomplete> {
-        use tables::grapheme as gr;
+        use crate::tables::grapheme as gr;
         if self.offset == 0 {
             return Ok(None);
         }

src/lib.rs

@@ -12,8 +12,6 @@
 //! to the [Unicode Standard Annex #29](http://www.unicode.org/reports/tr29/) rules.
 //!
 //! ```rust
-//! extern crate unicode_segmentation;
-//!
 //! use unicode_segmentation::UnicodeSegmentation;
 //!
 //! fn main() {
@@ -63,11 +61,11 @@ extern crate std;
 #[macro_use]
 extern crate quickcheck;
 
-pub use grapheme::{Graphemes, GraphemeIndices};
-pub use grapheme::{GraphemeCursor, GraphemeIncomplete};
-pub use tables::UNICODE_VERSION;
-pub use word::{UWordBounds, UWordBoundIndices, UnicodeWords};
-pub use sentence::{USentenceBounds, USentenceBoundIndices, UnicodeSentences};
+pub use crate::grapheme::{Graphemes, GraphemeIndices};
+pub use crate::grapheme::{GraphemeCursor, GraphemeIncomplete};
+pub use crate::tables::UNICODE_VERSION;
+pub use crate::word::{UWordBounds, UWordBoundIndices, UnicodeWords};
+pub use crate::sentence::{USentenceBounds, USentenceBoundIndices, UnicodeSentences};
 
 mod grapheme;
 mod tables;

src/sentence.rs

@@ -13,7 +13,7 @@ use core::iter::Filter;
 
 // All of the logic for forward iteration over sentences
 mod fwd {
-    use tables::sentence::SentenceCat;
+    use crate::tables::sentence::SentenceCat;
     use core::cmp;
 
     // Describe a parsed part of source string as described in this table:
@@ -111,7 +111,7 @@ mod fwd {
         if parts[idx] == StatePart::ClosePlus { idx -= 1 }
 
         if parts[idx] == StatePart::ATerm {
-            use tables::sentence as se;
+            use crate::tables::sentence as se;
 
             for next_char in ahead.chars() {
                 //( ¬(OLetter | Upper | Lower | ParaSep | SATerm) )* Lower
@@ -176,7 +176,7 @@ mod fwd {
 
         #[inline]
         fn next(&mut self) -> Option<usize> {
-            use tables::sentence as se;
+            use crate::tables::sentence as se;
 
             for next_char in self.string[self.pos..].chars() {
                 let position_before = self.pos;
@@ -313,7 +313,7 @@ pub fn new_sentence_bound_indices<'a>(source: &'a str) -> USentenceBoundIndices<
 #[inline]
 pub fn new_unicode_sentences<'b>(s: &'b str) -> UnicodeSentences<'b> {
     use super::UnicodeSegmentation;
-    use tables::util::is_alphanumeric;
+    use crate::tables::util::is_alphanumeric;
 
     fn has_alphanumeric(s: &&str) -> bool { s.chars().any(|c| is_alphanumeric(c)) }
     let has_alphanumeric: fn(&&str) -> bool = has_alphanumeric; // coerce to fn pointer

src/tables.rs

@@ -30,7 +30,7 @@ pub mod util {
     #[inline]
     fn is_alphabetic(c: char) -> bool {
         match c {
-            'a' ... 'z' | 'A' ... 'Z' => true,
+            'a' ..= 'z' | 'A' ..= 'Z' => true,
             c if c > '' => super::derived_property::Alphabetic(c),
             _ => false,
         }
@@ -39,7 +39,7 @@ pub mod util {
     #[inline]
     fn is_numeric(c: char) -> bool {
         match c {
-            '0' ... '9' => true,
+            '0' ..= '9' => true,
             c if c > '' => super::general_category::N(c),
             _ => false,
         }

src/test.rs

@@ -14,7 +14,7 @@ use std::prelude::v1::*;
 
 #[test]
 fn test_graphemes() {
-    use testdata::{TEST_SAME, TEST_DIFF};
+    use crate::testdata::{TEST_SAME, TEST_DIFF};
 
     pub const EXTRA_DIFF: &'static [(&'static str,
                                      &'static [&'static str],
@@ -88,7 +88,7 @@ fn test_graphemes() {
 
 #[test]
 fn test_words() {
-    use testdata::TEST_WORD;
+    use crate::testdata::TEST_WORD;
 
     // Unicode's official tests don't really test longer chains of flag emoji
     // TODO This could be improved with more tests like flag emoji with interspersed Extend chars and ZWJ
@@ -144,7 +144,7 @@ fn test_words() {
 
 #[test]
 fn test_sentences() {
-    use testdata::TEST_SENTENCE;
+    use crate::testdata::TEST_SENTENCE;
 
     for &(s, w) in TEST_SENTENCE.iter() {
         macro_rules! assert_ {

src/word.rs

@@ -11,7 +11,7 @@
 use core::cmp;
 use core::iter::Filter;
 
-use tables::word::WordCat;
+use crate::tables::word::WordCat;
 
 /// An iterator over the substrings of a string which, after splitting the string on
 /// [word boundaries](http://www.unicode.org/reports/tr29/#Word_Boundaries),
@@ -135,7 +135,7 @@ impl<'a> Iterator for UWordBounds<'a> {
     fn next(&mut self) -> Option<&'a str> {
         use self::UWordBoundsState::*;
         use self::FormatExtendType::*;
-        use tables::word as wd;
+        use crate::tables::word as wd;
         if self.string.len() == 0 {
             return None;
         }
@@ -364,7 +364,7 @@ impl<'a> DoubleEndedIterator for UWordBounds<'a> {
     fn next_back(&mut self) -> Option<&'a str> {
         use self::UWordBoundsState::*;
         use self::FormatExtendType::*;
-        use tables::word as wd;
+        use crate::tables::word as wd;
         if self.string.len() == 0 {
             return None;
         }
@@ -605,7 +605,7 @@ impl<'a> UWordBounds<'a> {
 
     #[inline]
     fn get_next_cat(&self, idx: usize) -> Option<WordCat> {
-        use tables::word as wd;
+        use crate::tables::word as wd;
         let nidx = idx + self.string[idx..].chars().next().unwrap().len_utf8();
         if nidx < self.string.len() {
             let nch = self.string[nidx..].chars().next().unwrap();
@@ -617,7 +617,7 @@ impl<'a> UWordBounds<'a> {
 
     #[inline]
     fn get_prev_cat(&self, idx: usize) -> Option<WordCat> {
-        use tables::word as wd;
+        use crate::tables::word as wd;
         if idx > 0 {
             let nch = self.string[..idx].chars().next_back().unwrap();
             Some(wd::word_category(nch))
@@ -640,7 +640,7 @@ pub fn new_word_bound_indices<'b>(s: &'b str) -> UWordBoundIndices<'b> {
 #[inline]
 pub fn new_unicode_words<'b>(s: &'b str) -> UnicodeWords<'b> {
     use super::UnicodeSegmentation;
-    use tables::util::is_alphanumeric;
+    use crate::tables::util::is_alphanumeric;
 
     fn has_alphanumeric(s: &&str) -> bool { s.chars().any(|c| is_alphanumeric(c)) }
     let has_alphanumeric: fn(&&str) -> bool = has_alphanumeric; // coerce to fn pointer