Bug 1336607 - Update vendored Rust sources to include geckolib dependencies; r=froydnj
MozReview-Commit-ID: BOgu41N351y
This commit is contained in:
Manish Goregaokar
305
third_party/rust/regex/scripts/unicode.py
vendored
Executable file
305
third_party/rust/regex/scripts/unicode.py
vendored
Executable file
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#!/usr/bin/env python2
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#
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# Copyright 2011-2013 The Rust Project Developers. See the COPYRIGHT
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# file at the top-level directory of this distribution and at
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# http://rust-lang.org/COPYRIGHT.
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#
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# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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# option. This file may not be copied, modified, or distributed
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# except according to those terms.
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# This script uses the following Unicode tables:
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# - DerivedCoreProperties.txt
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# - EastAsianWidth.txt
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# - PropList.txt
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# - Scripts.txt
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# - UnicodeData.txt
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#
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# Since this should not require frequent updates, we just store this
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# out-of-line and check the unicode.rs file into git.
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from collections import defaultdict
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import fileinput, re, os, sys
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preamble = '''// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// NOTE: The following code was generated by "scripts/unicode.py", do not edit
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// directly
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#![allow(warnings)]
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'''
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# Mapping taken from Table 12 from:
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# http://www.unicode.org/reports/tr44/#General_Category_Values
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expanded_categories = {
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'Lu': ['LC', 'L'], 'Ll': ['LC', 'L'], 'Lt': ['LC', 'L'],
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'Lm': ['L'], 'Lo': ['L'],
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'Mn': ['M'], 'Mc': ['M'], 'Me': ['M'],
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'Nd': ['N'], 'Nl': ['N'], 'No': ['No'],
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'Pc': ['P'], 'Pd': ['P'], 'Ps': ['P'], 'Pe': ['P'],
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'Pi': ['P'], 'Pf': ['P'], 'Po': ['P'],
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'Sm': ['S'], 'Sc': ['S'], 'Sk': ['S'], 'So': ['S'],
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'Zs': ['Z'], 'Zl': ['Z'], 'Zp': ['Z'],
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'Cc': ['C'], 'Cf': ['C'], 'Cs': ['C'], 'Co': ['C'], 'Cn': ['C'],
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}
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def fetch(f):
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if not os.path.exists(f):
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os.system("curl -O http://www.unicode.org/Public/UNIDATA/%s"
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% f)
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if not os.path.exists(f):
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sys.stderr.write("cannot load %s" % f)
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exit(1)
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def is_surrogate(n):
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return 0xD800 <= n <= 0xDFFF
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def load_unicode_data(f):
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fetch(f)
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gencats = {}
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udict = {};
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range_start = -1;
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for line in fileinput.input(f):
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data = line.split(';');
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if len(data) != 15:
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continue
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cp = int(data[0], 16);
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if is_surrogate(cp):
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continue
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if range_start >= 0:
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for i in xrange(range_start, cp):
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udict[i] = data;
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range_start = -1;
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if data[1].endswith(", First>"):
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range_start = cp;
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continue;
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udict[cp] = data;
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for code in udict:
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[code_org, name, gencat, combine, bidi,
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decomp, deci, digit, num, mirror,
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old, iso, upcase, lowcase, titlecase ] = udict[code];
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# place letter in categories as appropriate
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for cat in [gencat, "Assigned"] + expanded_categories.get(gencat, []):
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if cat not in gencats:
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gencats[cat] = []
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gencats[cat].append(code)
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# generate Not_Assigned from Assigned
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gencats["Cn"] = gen_unassigned(gencats["Assigned"])
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# Assigned is not a real category
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del(gencats["Assigned"])
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# Other contains Not_Assigned
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gencats["C"].extend(gencats["Cn"])
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gencats = group_cats(gencats)
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return gencats
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def group_cats(cats):
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cats_out = {}
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for cat in cats:
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cats_out[cat] = group_cat(cats[cat])
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return cats_out
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def group_cat(cat):
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cat_out = []
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letters = sorted(set(cat))
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cur_start = letters.pop(0)
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cur_end = cur_start
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for letter in letters:
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assert letter > cur_end, \
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"cur_end: %s, letter: %s" % (hex(cur_end), hex(letter))
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if letter == cur_end + 1:
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cur_end = letter
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else:
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cat_out.append((cur_start, cur_end))
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cur_start = cur_end = letter
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cat_out.append((cur_start, cur_end))
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return cat_out
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def ungroup_cat(cat):
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cat_out = []
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for (lo, hi) in cat:
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while lo <= hi:
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cat_out.append(lo)
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lo += 1
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return cat_out
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def gen_unassigned(assigned):
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assigned = set(assigned)
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return ([i for i in range(0, 0xd800) if i not in assigned] +
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[i for i in range(0xe000, 0x110000) if i not in assigned])
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def format_table_content(f, content, indent):
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line = " "*indent
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first = True
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for chunk in content.split(","):
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if len(line) + len(chunk) < 78:
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if first:
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line += chunk
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else:
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line += ", " + chunk
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first = False
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else:
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f.write(line + ",\n")
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line = " "*indent + chunk
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f.write(line)
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def load_properties(f, interestingprops):
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fetch(f)
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props = {}
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re1 = re.compile("^ *([0-9A-F]+) *; *(\w+)")
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re2 = re.compile("^ *([0-9A-F]+)\.\.([0-9A-F]+) *; *(\w+)")
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for line in fileinput.input(f):
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prop = None
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d_lo = 0
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d_hi = 0
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m = re1.match(line)
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if m:
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d_lo = m.group(1)
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d_hi = m.group(1)
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prop = m.group(2)
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else:
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m = re2.match(line)
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if m:
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d_lo = m.group(1)
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d_hi = m.group(2)
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prop = m.group(3)
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else:
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continue
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if interestingprops and prop not in interestingprops:
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continue
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d_lo = int(d_lo, 16)
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d_hi = int(d_hi, 16)
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if prop not in props:
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props[prop] = []
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props[prop].append((d_lo, d_hi))
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# optimize props if possible
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for prop in props:
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props[prop] = group_cat(ungroup_cat(props[prop]))
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return props
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def load_case_folding(f):
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fetch(f)
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re1 = re.compile("^ *([0-9A-F]+) *; *[CS] *; *([0-9A-F]+) *;")
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all_pairs = defaultdict(list)
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for line in fileinput.input(f):
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m = re1.match(line)
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if m:
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a = int(m.group(1), 16)
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b = int(m.group(2), 16)
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all_pairs[a].append(b)
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all_pairs[b].append(a)
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both = set()
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for k, vs in all_pairs.iteritems():
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for v in vs:
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both.add((k, v))
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for v2 in all_pairs[v]:
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both.add((k, v2))
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c_plus_s_both = sorted((k1, k2) for k1, k2 in both if k1 != k2)
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return {"C_plus_S_both": c_plus_s_both}
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def escape_char(c):
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return "'\\u{%x}'" % c
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def emit_table(f, name, t_data, t_type = "&'static [(char, char)]", is_pub=True,
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pfun=lambda x: "(%s,%s)" % (escape_char(x[0]), escape_char(x[1]))):
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pub_string = ""
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if is_pub:
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pub_string = "pub "
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f.write(" %sconst %s: %s = &[\n" % (pub_string, name, t_type))
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data = ""
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first = True
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for dat in t_data:
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if not first:
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data += ","
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first = False
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data += pfun(dat)
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format_table_content(f, data, 8)
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f.write("\n ];\n\n")
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def emit_property_module(f, mod, tbl):
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f.write("pub mod %s {\n" % mod)
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keys = tbl.keys()
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keys.sort()
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for cat in keys:
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emit_table(f, "%s_table" % cat, tbl[cat])
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f.write("}\n\n")
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def emit_regex_module(f, cats, w_data):
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f.write("pub mod regex {\n")
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regex_class = "&'static [(char, char)]"
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class_table = "&'static [(&'static str, %s)]" % regex_class
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emit_table(f, "UNICODE_CLASSES", cats, class_table,
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pfun=lambda x: "(\"%s\",super::%s::%s_table)" % (x[0], x[1], x[0]))
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f.write(" pub const PERLD: %s = super::general_category::Nd_table;\n\n"
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% regex_class)
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f.write(" pub const PERLS: %s = super::property::White_Space_table;\n\n"
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% regex_class)
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emit_table(f, "PERLW", w_data, regex_class)
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f.write("}\n\n")
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if __name__ == "__main__":
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r = "unicode.rs"
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if os.path.exists(r):
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os.remove(r)
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with open(r, "w") as rf:
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# write the file's preamble
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rf.write(preamble)
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# download and parse all the data
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fetch("ReadMe.txt")
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with open("ReadMe.txt") as readme:
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pattern = "for Version (\d+)\.(\d+)\.(\d+) of the Unicode"
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unicode_version = re.search(pattern, readme.read()).groups()
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gencats = load_unicode_data("UnicodeData.txt")
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want_derived = ["XID_Start", "XID_Continue", "Alphabetic", "Lowercase", "Uppercase"]
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other_derived = ["Default_Ignorable_Code_Point", "Grapheme_Extend"]
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derived = load_properties("DerivedCoreProperties.txt", want_derived + other_derived)
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scripts = load_properties("Scripts.txt", [])
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props = load_properties("PropList.txt",
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["White_Space", "Join_Control", "Noncharacter_Code_Point"])
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case_folding = load_case_folding("CaseFolding.txt")
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# all of these categories will also be available as \p{} in libregex
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allcats = []
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for (name, cat) in ("general_category", gencats), \
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("derived_property", derived), \
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("script", scripts), \
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("property", props):
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emit_property_module(rf, name, cat)
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allcats.extend(map(lambda x: (x, name), cat))
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allcats.sort(key=lambda c: c[0])
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# the \w regex corresponds to Alphabetic + Mark + Decimal_Number +
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# Connector_Punctuation + Join-Control according to UTS#18
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# http://www.unicode.org/reports/tr18/#Compatibility_Properties
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perl_words = []
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for cat in derived["Alphabetic"], gencats["M"], gencats["Nd"], \
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gencats["Pc"], props["Join_Control"]:
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perl_words.extend(ungroup_cat(cat))
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perl_words = group_cat(perl_words)
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# emit lookup tables for \p{}, along with \d, \w, and \s for libregex
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emit_regex_module(rf, allcats, perl_words)
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emit_property_module(rf, "case_folding", case_folding)
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