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Commitb159d9e

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Merge pull request#68 from unicode-rs/unicode-11
Update to Unicode 11
2 parents7be58ca +df71866 commitb159d9e

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8 files changed

+2284
-2394
lines changed

8 files changed

+2284
-2394
lines changed

‎scripts/unicode.py‎

Lines changed: 26 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -54,13 +54,21 @@
5454
# these are the surrogate codepoints, which are not valid rust characters
5555
surrogate_codepoints= (0xd800,0xdfff)
5656

57+
UNICODE_VERSION= (11,0,0)
58+
59+
UNICODE_VERSION_NUMBER="%s.%s.%s"%UNICODE_VERSION
60+
5761
defis_surrogate(n):
5862
returnsurrogate_codepoints[0]<=n<=surrogate_codepoints[1]
5963

6064
deffetch(f):
6165
ifnotos.path.exists(os.path.basename(f)):
62-
os.system("curl -O http://www.unicode.org/Public/10.0.0/ucd/%s"
63-
%f)
66+
if"emoji"inf:
67+
os.system("curl -O https://www.unicode.org/Public/emoji/%s.%s/%s"
68+
% (UNICODE_VERSION[0],UNICODE_VERSION[1],f))
69+
else:
70+
os.system("curl -O http://www.unicode.org/Public/%s/ucd/%s"
71+
% (UNICODE_VERSION_NUMBER,f))
6472

6573
ifnotos.path.exists(os.path.basename(f)):
6674
sys.stderr.write("cannot load %s"%f)
@@ -262,7 +270,7 @@ def emit_break_module(f, break_table, break_cats, name):
262270
pub use self::%sCat::*;
263271
264272
#[allow(non_camel_case_types)]
265-
#[derive(Clone, Copy, PartialEq, Eq)]
273+
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
266274
pub enum %sCat {
267275
"""% (name,Name,Name))
268276

@@ -305,18 +313,13 @@ def emit_break_module(f, break_table, break_cats, name):
305313
withopen(r,"w")asrf:
306314
# write the file's preamble
307315
rf.write(preamble)
308-
309-
# download and parse all the data
310-
fetch("ReadMe.txt")
311-
withopen("ReadMe.txt")asreadme:
312-
pattern=r"for Version (\d+)\.(\d+)\.(\d+) of the Unicode"
313-
unicode_version=re.search(pattern,readme.read()).groups()
314316
rf.write("""
315317
/// The version of [Unicode](http://www.unicode.org/)
316318
/// that this version of unicode-segmentation is based on.
317319
pub const UNICODE_VERSION: (u64, u64, u64) = (%s, %s, %s);
318-
"""%unicode_version)
320+
"""%UNICODE_VERSION)
319321

322+
# download and parse all the data
320323
gencats=load_gencats("UnicodeData.txt")
321324
derived=load_properties("DerivedCoreProperties.txt", ["Alphabetic"])
322325

@@ -341,8 +344,15 @@ def emit_break_module(f, break_table, break_cats, name):
341344
grapheme_table= []
342345
forcatingrapheme_cats:
343346
grapheme_table.extend([(x,y,cat)for (x,y)ingrapheme_cats[cat]])
347+
emoji_props=load_properties("emoji-data.txt", ["Extended_Pictographic"])
348+
grapheme_table.extend([(x,y,"Extended_Pictographic")for (x,y)inemoji_props["Extended_Pictographic"]])
344349
grapheme_table.sort(key=lambdaw:w[0])
345-
emit_break_module(rf,grapheme_table,list(grapheme_cats.keys()),"grapheme")
350+
last=-1
351+
forcharsingrapheme_table:
352+
ifchars[0]<=last:
353+
raise"Grapheme tables and Extended_Pictographic values overlap; need to store these separately!"
354+
last=chars[1]
355+
emit_break_module(rf,grapheme_table,list(grapheme_cats.keys())+ ["Extended_Pictographic"],"grapheme")
346356
rf.write("\n")
347357

348358
word_cats=load_properties("auxiliary/WordBreakProperty.txt", [])
@@ -352,6 +362,11 @@ def emit_break_module(f, break_table, break_cats, name):
352362
word_table.sort(key=lambdaw:w[0])
353363
emit_break_module(rf,word_table,list(word_cats.keys()),"word")
354364

365+
# There are some emoji which are also ALetter, so this needs to be stored separately
366+
# For efficiency, we could still merge the two tables and produce an ALetterEP state
367+
emoji_table= [(x,y,"Extended_Pictographic")for (x,y)inemoji_props["Extended_Pictographic"]]
368+
emit_break_module(rf,emoji_table, ["Extended_Pictographic"],"emoji")
369+
355370
sentence_cats=load_properties("auxiliary/SentenceBreakProperty.txt", [])
356371
sentence_table= []
357372
forcatinsentence_cats:

‎scripts/unicode_gen_breaktests.py‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -172,7 +172,7 @@ def create_grapheme_data(f):
172172
stype="&'static [(&'static str, &'static [&'static str])]"
173173
dtype="&'static [(&'static str, &'static [&'static str], &'static [&'static str])]"
174174
f.write(" // official Unicode test data\n")
175-
f.write(" // http://www.unicode.org/Public/10.0.0/ucd/auxiliary/GraphemeBreakTest.txt\n")
175+
f.write(" // http://www.unicode.org/Public/%s/ucd/auxiliary/GraphemeBreakTest.txt\n"%unicode.UNICODE_VERSION_NUMBER)
176176
unicode.emit_table(f,"TEST_SAME",test_same,stype,True,showfun,True)
177177
unicode.emit_table(f,"TEST_DIFF",test_diff,dtype,True,showfun,True)
178178

@@ -187,7 +187,7 @@ def create_words_data(f):
187187

188188
wtype="&'static [(&'static str, &'static [&'static str])]"
189189
f.write(" // official Unicode test data\n")
190-
f.write(" // http://www.unicode.org/Public/10.0.0/ucd/auxiliary/WordBreakTest.txt\n")
190+
f.write(" // http://www.unicode.org/Public/%s/ucd/auxiliary/WordBreakTest.txt\n"%unicode.UNICODE_VERSION_NUMBER)
191191
unicode.emit_table(f,"TEST_WORD",test,wtype,True,showfun,True)
192192

193193
defcreate_sentence_data(f):
@@ -201,7 +201,7 @@ def create_sentence_data(f):
201201

202202
wtype="&'static [(&'static str, &'static [&'static str])]"
203203
f.write(" // official Unicode test data\n")
204-
f.write(" // http://www.unicode.org/Public/10.0.0/ucd/auxiliary/SentenceBreakTest.txt\n")
204+
f.write(" // http://www.unicode.org/Public/%s/ucd/auxiliary/SentenceBreakTest.txt\n"%unicode.UNICODE_VERSION_NUMBER)
205205
unicode.emit_table(f,"TEST_SENTENCE",test,wtype,True,showfun,True)
206206

207207
if__name__=="__main__":

‎src/grapheme.rs‎

Lines changed: 13 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -147,8 +147,8 @@ enum GraphemeState {
147147
// The codepoint after is a Regional Indicator Symbol, so a boundary iff
148148
// it is preceded by an even number of RIS codepoints. (GB12, GB13)
149149
Regional,
150-
// The codepoint after isin the E_Modifier category, so whether it's a boundary
151-
// depends on pre-context according toGB10.
150+
// The codepoint after isExtended_Pictographic,
151+
//so whether it's a boundarydepends on pre-context according toGB11.
152152
Emoji,
153153
}
154154

@@ -239,11 +239,7 @@ fn check_pair(before: GraphemeCat, after: GraphemeCat) -> PairResult {
239239
(_,GC_ZWJ) =>NotBreak,// GB9
240240
(_,GC_SpacingMark) =>Extended,// GB9a
241241
(GC_Prepend, _) =>Extended,// GB9b
242-
(GC_E_Base,GC_E_Modifier) =>NotBreak,// GB10
243-
(GC_E_Base_GAZ,GC_E_Modifier) =>NotBreak,// GB10
244-
(GC_Extend,GC_E_Modifier) =>Emoji,// GB10
245-
(GC_ZWJ,GC_Glue_After_Zwj) =>NotBreak,// GB11
246-
(GC_ZWJ,GC_E_Base_GAZ) =>NotBreak,// GB11
242+
(GC_ZWJ,GC_Extended_Pictographic) =>Emoji,// GB11
247243
(GC_Regional_Indicator,GC_Regional_Indicator) =>Regional,// GB12, GB13
248244
(_, _) =>Break,// GB999
249245
}
@@ -415,10 +411,17 @@ impl GraphemeCursor {
415411

416412
fnhandle_emoji(&mutself,chunk:&str,chunk_start:usize){
417413
use tables::graphemeas gr;
418-
for chin chunk.chars().rev(){
414+
letmut iter = chunk.chars().rev();
415+
ifletSome(ch) = iter.next(){
416+
if gr::grapheme_category(ch) != gr::GC_ZWJ{
417+
self.decide(true);
418+
return;
419+
}
420+
}
421+
for chin iter{
419422
match gr::grapheme_category(ch){
420423
gr::GC_Extend =>(),
421-
gr::GC_E_Base | gr::GC_E_Base_GAZ =>{
424+
gr::GC_Extended_Pictographic =>{
422425
self.decide(false);
423426
return;
424427
}
@@ -484,7 +487,7 @@ impl GraphemeCursor {
484487
letmut need_pre_context =true;
485488
matchself.cat_after.unwrap(){
486489
gr::GC_Regional_Indicator =>self.state =GraphemeState::Regional,
487-
gr::GC_E_Modifier =>self.state =GraphemeState::Emoji,
490+
gr::GC_Extended_Pictographic =>self.state =GraphemeState::Emoji,
488491
_ => need_pre_context =self.cat_before.is_none(),
489492
}
490493
if need_pre_context{

‎src/lib.rs‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -29,7 +29,7 @@
2929
//!
3030
//! let s = "The quick (\"brown\") fox";
3131
//! let w = s.split_word_bounds().collect::<Vec<&str>>();
32-
//! let b: &[_] = &["The", " ", "quick", " ", "(", "\"", "brown", "\"", ")", "", " ", "fox"];
32+
//! let b: &[_] = &["The", " ", "quick", " ", "(", "\"", "brown", "\"", ")", " ", "fox"];
3333
//! assert_eq!(w, b);
3434
//! }
3535
//! ```
@@ -156,7 +156,7 @@ pub trait UnicodeSegmentation {
156156
/// ```
157157
/// # use self::unicode_segmentation::UnicodeSegmentation;
158158
/// let swu1 = "The quick (\"brown\") fox".split_word_bounds().collect::<Vec<&str>>();
159-
/// let b: &[_] = &["The", " ", "quick", " ", "(", "\"", "brown", "\"", ")", "", " ", "fox"];
159+
/// let b: &[_] = &["The", " ", "quick", " ", "(", "\"", "brown", "\"", ")", " ", "fox"];
160160
///
161161
/// assert_eq!(&swu1[..], b);
162162
/// ```

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