diff options
Diffstat (limited to 'unicode-xid/scripts/unicode.py')
| -rwxr-xr-x | unicode-xid/scripts/unicode.py | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/unicode-xid/scripts/unicode.py b/unicode-xid/scripts/unicode.py deleted file mode 100755 index 393f901..0000000 --- a/unicode-xid/scripts/unicode.py +++ /dev/null @@ -1,187 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2011-2015 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: -# - DerivedCoreProperties.txt -# - ReadMe.txt -# -# Since this should not require frequent updates, we just store this -# out-of-line and check the unicode.rs file into git. - -import fileinput, re, os, sys - -preamble = '''// Copyright 2012-2015 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. - -// NOTE: The following code was generated by "scripts/unicode.py", do not edit directly - -#![allow(missing_docs, non_upper_case_globals, non_snake_case)] -''' - -def fetch(f): - if not os.path.exists(os.path.basename(f)): - os.system("curl -O http://www.unicode.org/Public/UNIDATA/%s" - % f) - - if not os.path.exists(os.path.basename(f)): - sys.stderr.write("cannot load %s" % f) - exit(1) - -def group_cat(cat): - cat_out = [] - letters = sorted(set(cat)) - cur_start = letters.pop(0) - cur_end = cur_start - for letter in letters: - assert letter > cur_end, \ - "cur_end: %s, letter: %s" % (hex(cur_end), hex(letter)) - if letter == cur_end + 1: - cur_end = letter - else: - cat_out.append((cur_start, cur_end)) - cur_start = cur_end = letter - cat_out.append((cur_start, cur_end)) - return cat_out - -def ungroup_cat(cat): - cat_out = [] - for (lo, hi) in cat: - while lo <= hi: - cat_out.append(lo) - lo += 1 - return cat_out - -def format_table_content(f, content, indent): - line = " "*indent - first = True - for chunk in content.split(","): - if len(line) + len(chunk) < 98: - if first: - line += chunk - else: - line += ", " + chunk - first = False - else: - f.write(line + ",\n") - line = " "*indent + chunk - f.write(line) - -def load_properties(f, interestingprops): - fetch(f) - props = {} - re1 = re.compile("^ *([0-9A-F]+) *; *(\w+)") - re2 = re.compile("^ *([0-9A-F]+)\.\.([0-9A-F]+) *; *(\w+)") - - for line in fileinput.input(os.path.basename(f)): - prop = None - d_lo = 0 - d_hi = 0 - m = re1.match(line) - if m: - d_lo = m.group(1) - d_hi = m.group(1) - prop = m.group(2) - else: - m = re2.match(line) - if m: - d_lo = m.group(1) - d_hi = m.group(2) - prop = m.group(3) - else: - continue - if interestingprops and prop not in interestingprops: - continue - d_lo = int(d_lo, 16) - d_hi = int(d_hi, 16) - if prop not in props: - props[prop] = [] - props[prop].append((d_lo, d_hi)) - - # optimize if possible - for prop in props: - props[prop] = group_cat(ungroup_cat(props[prop])) - - return props - -def escape_char(c): - return "'\\u{%x}'" % c - -def emit_bsearch_range_table(f): - f.write(""" -fn bsearch_range_table(c: char, r: &[(char,char)]) -> bool { - use core::cmp::Ordering::{Equal, Less, Greater}; - - r.binary_search_by(|&(lo,hi)| { - if lo <= c && c <= hi { Equal } - else if hi < c { Less } - else { Greater } - }).is_ok() -}\n -""") - -def emit_table(f, name, t_data, t_type = "&[(char, char)]", is_pub=True, - pfun=lambda x: "(%s,%s)" % (escape_char(x[0]), escape_char(x[1])), is_const=True): - pub_string = "const" - if not is_const: - pub_string = "let" - if is_pub: - pub_string = "pub " + pub_string - f.write(" %s %s: %s = &[\n" % (pub_string, name, t_type)) - data = "" - first = True - for dat in t_data: - if not first: - data += "," - first = False - data += pfun(dat) - format_table_content(f, data, 8) - f.write("\n ];\n\n") - -def emit_property_module(f, mod, tbl, emit): - f.write("pub mod %s {\n" % mod) - for cat in sorted(emit): - emit_table(f, "%s_table" % cat, tbl[cat]) - f.write(" pub fn %s(c: char) -> bool {\n" % cat) - f.write(" super::bsearch_range_table(c, %s_table)\n" % cat) - f.write(" }\n\n") - f.write("}\n\n") - -if __name__ == "__main__": - r = "tables.rs" - if os.path.exists(r): - os.remove(r) - with open(r, "w") as rf: - # write the file's preamble - rf.write(preamble) - - # download and parse all the data - fetch("ReadMe.txt") - with open("ReadMe.txt") as readme: - pattern = "for Version (\d+)\.(\d+)\.(\d+) of the Unicode" - unicode_version = re.search(pattern, readme.read()).groups() - rf.write(""" -/// The version of [Unicode](http://www.unicode.org/) -/// that this version of unicode-xid is based on. -pub const UNICODE_VERSION: (u64, u64, u64) = (%s, %s, %s); -""" % unicode_version) - emit_bsearch_range_table(rf) - - want_derived = ["XID_Start", "XID_Continue"] - derived = load_properties("DerivedCoreProperties.txt", want_derived) - emit_property_module(rf, "derived_property", derived, want_derived) |