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#!/usr/bin/env python
# -*- coding: utf-8
#
# Copyright 2015 The Rust Project Developers. See the COPYRIGHT
# file at the top-level directory of this distribution and at
# http://rust-lang.org/COPYRIGHT.
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.
# This script uses the following Unicode tables:
# - auxiliary/GraphemeBreakTest.txt
# - auxiliary/WordBreakTest.txt
#
# Since this should not require frequent updates, we just store this
# out-of-line and check the unicode.rs file into git.
from __future__ import print_function
import unicode, re, os, fileinput
def load_test_data(f, optsplit=[]):
testRe1 = re.compile(r"^÷\s+([^\s].*[^\s])\s+÷\s+#\s+÷\s+\[0.2\].*?([÷×].*)\s+÷\s+\[0.3\]\s*$")
unicode.fetch(f)
data = []
for line in fileinput.input(os.path.basename(f)):
# lines that include a test start with the ÷ character
if len(line) < 2 or not line.startswith('÷'):
continue
m = testRe1.match(line)
if not m:
print("error: no match on line where test was expected: %s" % line)
continue
# process the characters in this test case
chars = process_split_string(m.group(1))
# skip test case if it contains invalid characters (viz., surrogates)
if not chars:
continue
# now process test cases
(chars, info) = process_split_info(m.group(2), chars, optsplit)
# make sure that we have break info for each break!
assert len(chars) - 1 == len(info)
data.append((chars, info))
return data
def process_split_info(s, c, o):
outcs = []
outis = []
workcs = c.pop(0)
# are we on a × or a ÷?
isX = False
if s.startswith('×'):
isX = True
# find each instance of '(÷|×) [x.y] '
while s:
# find the currently considered rule number
sInd = s.index('[') + 1
eInd = s.index(']')
# if it's '× [a.b]' where 'a.b' is in o, then
# we consider it a split even though it's not
# marked as one
# if it's ÷ then it's always a split
if not isX or s[sInd:eInd] in o:
outis.append(s[sInd:eInd])
outcs.append(workcs)
workcs = c.pop(0)
else:
workcs.extend(c.pop(0))
idx = 1
while idx < len(s):
if s[idx:].startswith('×'):
isX = True
break
if s[idx:].startswith('÷'):
isX = False
break
idx += 1
s = s[idx:]
outcs.append(workcs)
return (outcs, outis)
def process_split_string(s):
outls = []
workls = []
inls = s.split()
for i in inls:
if i == '÷' or i == '×':
outls.append(workls)
workls = []
continue
ival = int(i,16)
if unicode.is_surrogate(ival):
return []
workls.append(ival)
if workls:
outls.append(workls)
return outls
def showfun(x):
outstr = '("'
for c in x[0]:
outstr += "\\u{%x}" % c
outstr += '",&['
xfirst = True
for xx in x[1:]:
if not xfirst:
outstr += '],&['
xfirst = False
sfirst = True
for sp in xx:
if not sfirst:
outstr += ','
sfirst = False
outstr += '"'
for c in sp:
outstr += "\\u{%x}" % c
outstr += '"'
outstr += '])'
return outstr
def create_grapheme_data(f):
# rules 9.1 and 9.2 are for extended graphemes only
optsplits = ['9.1','9.2']
d = load_test_data("auxiliary/GraphemeBreakTest.txt", optsplits)
test_same = []
test_diff = []
for (c, i) in d:
allchars = [cn for s in c for cn in s]
extgraphs = []
extwork = []
extwork.extend(c[0])
for n in range(0,len(i)):
if i[n] in optsplits:
extwork.extend(c[n+1])
else:
extgraphs.append(extwork)
extwork = []
extwork.extend(c[n+1])
# these are the extended grapheme clusters
extgraphs.append(extwork)
if extgraphs == c:
test_same.append((allchars, c))
else:
test_diff.append((allchars, extgraphs, c))
stype = "&'static [(&'static str, &'static [&'static str])]"
dtype = "&'static [(&'static str, &'static [&'static str], &'static [&'static str])]"
f.write(" // official Unicode test data\n")
f.write(" // http://www.unicode.org/Public/%s/ucd/auxiliary/GraphemeBreakTest.txt\n" % unicode.UNICODE_VERSION_NUMBER)
unicode.emit_table(f, "TEST_SAME", test_same, stype, True, showfun, True)
unicode.emit_table(f, "TEST_DIFF", test_diff, dtype, True, showfun, True)
def create_words_data(f):
d = load_test_data("auxiliary/WordBreakTest.txt")
test = []
for (c, i) in d:
allchars = [cn for s in c for cn in s]
test.append((allchars, c))
wtype = "&'static [(&'static str, &'static [&'static str])]"
f.write(" // official Unicode test data\n")
f.write(" // http://www.unicode.org/Public/%s/ucd/auxiliary/WordBreakTest.txt\n" % unicode.UNICODE_VERSION_NUMBER)
unicode.emit_table(f, "TEST_WORD", test, wtype, True, showfun, True)
def create_sentence_data(f):
d = load_test_data("auxiliary/SentenceBreakTest.txt")
test = []
for (c, i) in d:
allchars = [cn for s in c for cn in s]
test.append((allchars, c))
wtype = "&'static [(&'static str, &'static [&'static str])]"
f.write(" // official Unicode test data\n")
f.write(" // http://www.unicode.org/Public/%s/ucd/auxiliary/SentenceBreakTest.txt\n" % unicode.UNICODE_VERSION_NUMBER)
unicode.emit_table(f, "TEST_SENTENCE", test, wtype, True, showfun, True)
if __name__ == "__main__":
with open("testdata.rs", "w") as rf:
rf.write(unicode.preamble)
create_grapheme_data(rf)
create_words_data(rf)
create_sentence_data(rf)
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