mirror of
https://git.proxmox.com/git/rustc
synced 2026-01-03 02:31:45 +00:00
227 lines
6.9 KiB
Python
227 lines
6.9 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright 2011-2015 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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# This script uses the following Unicode security tables:
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# - IdentifierStatus.txt
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# - ReadMe.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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import fileinput, re, os, sys, operator
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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 directly
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#![allow(missing_docs, non_upper_case_globals, non_snake_case)]
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'''
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UNICODE_VERSION = (12, 1, 0)
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UNICODE_VERSION_NUMBER = "%s.%s.%s" %UNICODE_VERSION
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def fetch(f):
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if not os.path.exists(os.path.basename(f)):
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os.system("curl -O http://www.unicode.org/Public/security/%s/%s"
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% (UNICODE_VERSION_NUMBER, f))
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if not os.path.exists(os.path.basename(f)):
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sys.stderr.write("cannot load %s\n" % f)
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exit(1)
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# Implementation from unicode-segmentation
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def load_properties(f, interestingprops = None):
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fetch(f)
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props = {}
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re1 = re.compile(r"^ *([0-9A-F]+) *; *(\w+)")
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re2 = re.compile(r"^ *([0-9A-F]+)\.\.([0-9A-F]+) *; *(\w+)")
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for line in fileinput.input(os.path.basename(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).strip()
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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).strip()
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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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return props
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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) < 98:
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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 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])), is_const=True):
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pub_string = "const"
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if not is_const:
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pub_string = "let"
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if is_pub:
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pub_string = "pub " + pub_string
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f.write(" %s %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_identifier_module(f):
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f.write("pub mod identifier {")
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f.write("""
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#[derive(Copy, Clone, Hash, Eq, PartialEq, Ord, PartialOrd, Debug)]
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#[allow(non_camel_case_types)]
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/// https://www.unicode.org/reports/tr39/#Identifier_Status_and_Type
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pub enum IdentifierType {
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// Restricted
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Not_Character,
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Deprecated,
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Default_Ignorable,
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Not_NFKC,
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Not_XID,
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Exclusion,
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Obsolete,
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Technical,
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Uncommon_Use,
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Limited_Use,
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// Allowed
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Inclusion,
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Recommended
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}
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#[inline]
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pub fn identifier_status_allowed(c: char) -> bool {
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// FIXME: do we want to special case ASCII here?
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match c as usize {
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_ => super::util::bsearch_range_table(c, IDENTIFIER_STATUS)
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}
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}
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#[inline]
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pub fn identifier_type(c: char) -> Option<IdentifierType> {
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// FIXME: do we want to special case ASCII here?
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match c as usize {
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_ => super::util::bsearch_range_value_table(c, IDENTIFIER_TYPE)
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}
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}
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""")
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f.write(" // Identifier status table:\n")
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identifier_status_table = load_properties("IdentifierStatus.txt")
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emit_table(f, "IDENTIFIER_STATUS", identifier_status_table['Allowed'], "&'static [(char, char)]", is_pub=False,
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pfun=lambda x: "(%s,%s)" % (escape_char(x[0]), escape_char(x[1])))
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identifier_type = load_properties("IdentifierType.txt")
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type_table = []
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for ty in identifier_type:
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type_table.extend([(x, y, ty) for (x, y) in identifier_type[ty]])
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type_table.sort(key=lambda w: w[0])
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emit_table(f, "IDENTIFIER_TYPE", type_table, "&'static [(char, char, IdentifierType)]", is_pub=False,
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pfun=lambda x: "(%s,%s, IdentifierType::%s)" % (escape_char(x[0]), escape_char(x[1]), x[2]))
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f.write("}\n\n")
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def emit_util_mod(f):
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f.write("""
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pub mod util {
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use core::result::Result::{Ok, Err};
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#[inline]
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pub fn bsearch_range_table(c: char, r: &'static [(char,char)]) -> bool {
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use core::cmp::Ordering::{Equal, Less, Greater};
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r.binary_search_by(|&(lo,hi)| {
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if lo <= c && c <= hi { Equal }
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else if hi < c { Less }
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else { Greater }
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}).is_ok()
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}
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pub fn bsearch_range_value_table<T: Copy>(c: char, r: &'static [(char, char, T)]) -> Option<T> {
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use core::cmp::Ordering::{Equal, Less, Greater};
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match r.binary_search_by(|&(lo, hi, _)| {
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if lo <= c && c <= hi { Equal }
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else if hi < c { Less }
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else { Greater }
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}) {
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Ok(idx) => {
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let (_, _, cat) = r[idx];
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Some(cat)
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}
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Err(_) => None
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}
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}
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}
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""")
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if __name__ == "__main__":
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r = "tables.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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rf.write("""
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/// The version of [Unicode](http://www.unicode.org/)
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/// that this version of unicode-security is based on.
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pub const UNICODE_VERSION: (u64, u64, u64) = (%s, %s, %s);
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""" % UNICODE_VERSION)
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emit_util_mod(rf)
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### identifier module
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emit_identifier_module(rf)
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