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Byte vs column awareness for diagnostic-show-locus.c (PR 49973) 

contrib/ChangeLog

2019-12-09  Lewis Hyatt  <lhyatt@gmail.com>

	PR preprocessor/49973
	* unicode/from_glibc/unicode_utils.py: Support script from
	glibc (commit 464cd3) to extract character widths from Unicode data
	files.
	* unicode/from_glibc/utf8_gen.py: Likewise.
	* unicode/UnicodeData.txt: Unicode v. 12.1.0 data file.
	* unicode/EastAsianWidth.txt: Likewise.
	* unicode/PropList.txt: Likewise.
	* unicode/gen_wcwidth.py: New utility to generate
	libcpp/generated_cpp_wcwidth.h with help from the glibc support
	scripts and the Unicode data files.
	* unicode/unicode-license.txt: Added.
	* unicode/README: New explanatory file.

libcpp/ChangeLog

2019-12-09  Lewis Hyatt  <lhyatt@gmail.com>

	PR preprocessor/49973
	* generated_cpp_wcwidth.h: New file generated by
	../contrib/unicode/gen_wcwidth.py, supports new cpp_wcwidth function.
	* charset.c (compute_next_display_width): New function to help
	implement display columns.
	(cpp_byte_column_to_display_column): Likewise.
	(cpp_display_column_to_byte_column): Likewise.
	(cpp_wcwidth): Likewise.
	* include/cpplib.h (cpp_byte_column_to_display_column): Declare.
	(cpp_display_column_to_byte_column): Declare.
	(cpp_wcwidth): Declare.
	(cpp_display_width): New function.

gcc/ChangeLog

2019-12-09  Lewis Hyatt  <lhyatt@gmail.com>

	PR preprocessor/49973
	* input.c (location_compute_display_column): New function to help with
	multibyte awareness in diagnostics.
	(test_cpp_utf8): New self-test.
	(input_c_tests): Call the new test.
	* input.h (location_compute_display_column): Declare.
	* diagnostic-show-locus.c: Pervasive changes to add multibyte awareness
	to all classes and functions.
	(enum column_unit): New enum.
	(class exploc_with_display_col): New class.
	(class layout_point): Convert m_column member to array m_columns[2].
	(layout_range::contains_point): Add col_unit argument.
	(test_layout_range_for_single_point): Pass new argument.
	(test_layout_range_for_single_line): Likewise.
	(test_layout_range_for_multiple_lines): Likewise.
	(line_bounds::convert_to_display_cols): New function.
	(layout::get_state_at_point): Add col_unit argument.
	(make_range): Use empty filename rather than dummy filename.
	(get_line_width_without_trailing_whitespace): Rename to...
	(get_line_bytes_without_trailing_whitespace): ...this.
	(test_get_line_width_without_trailing_whitespace): Rename to...
	(test_get_line_bytes_without_trailing_whitespace): ...this.
	(class layout): m_exploc changed to exploc_with_display_col from
	plain expanded_location.
	(layout::get_linenum_width): New accessor member function.
	(layout::get_x_offset_display): Likewise.
	(layout::calculate_linenum_width): New subroutine for the constuctor.
	(layout::calculate_x_offset_display): Likewise.
	(layout::layout): Use the new subroutines. Add multibyte awareness.
	(layout::print_source_line): Add multibyte awareness.
	(layout::print_line): Likewise.
	(layout::print_annotation_line): Likewise.
	(line_label::line_label): Likewise.
	(layout::print_any_labels): Likewise.
	(layout::annotation_line_showed_range_p): Likewise.
	(get_printed_columns): Likewise.
	(class line_label): Rename m_length to m_display_width.
	(get_affected_columns): Rename to...
	(get_affected_range): ...this; add col_unit argument and multibyte
	awareness.
	(class correction): Add m_affected_bytes and m_display_cols
	members.  Rename m_len to m_byte_length for clarity.  Add multibyte
	awareness throughout.
	(correction::insertion_p): Add multibyte awareness.
	(correction::compute_display_cols): New function.
	(correction::ensure_terminated): Use new member name m_byte_length.
	(line_corrections::add_hint): Add multibyte awareness.
	(layout::print_trailing_fixits): Likewise.
	(layout::get_x_bound_for_row): Likewise.
	(test_one_liner_simple_caret_utf8): New self-test analogous to the one
	with _utf8 suffix removed, testing multibyte awareness.
	(test_one_liner_caret_and_range_utf8): Likewise.
	(test_one_liner_multiple_carets_and_ranges_utf8): Likewise.
	(test_one_liner_fixit_insert_before_utf8): Likewise.
	(test_one_liner_fixit_insert_after_utf8): Likewise.
	(test_one_liner_fixit_remove_utf8): Likewise.
	(test_one_liner_fixit_replace_utf8): Likewise.
	(test_one_liner_fixit_replace_non_equal_range_utf8): Likewise.
	(test_one_liner_fixit_replace_equal_secondary_range_utf8): Likewise.
	(test_one_liner_fixit_validation_adhoc_locations_utf8): Likewise.
	(test_one_liner_many_fixits_1_utf8): Likewise.
	(test_one_liner_many_fixits_2_utf8): Likewise.
	(test_one_liner_labels_utf8): Likewise.
	(test_diagnostic_show_locus_one_liner_utf8): Likewise.
	(test_overlapped_fixit_printing_utf8): Likewise.
	(test_overlapped_fixit_printing): Adapt for changes to
	get_affected_columns, get_printed_columns and class corrections.
	(test_overlapped_fixit_printing_2): Likewise.
	(test_linenum_sep): New constant.
	(test_left_margin): Likewise.
	(test_offset_impl): Helper function for new test.
	(test_layout_x_offset_display_utf8): New test.
	(diagnostic_show_locus_c_tests): Call new tests.

gcc/testsuite/ChangeLog:

2019-12-09  Lewis Hyatt  <lhyatt@gmail.com>

	PR preprocessor/49973
	* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
	(test_show_locus): Tweak so that expected output is the same as
	before the diagnostic-show-locus.c changes.
	* gcc.dg/cpp/pr66415-1.c: Likewise.

From-SVN: r279137
This commit is contained in:
Lewis Hyatt 2019-12-09 20:03:47 +00:00 committed by David Malcolm
parent 763c9f4a85
commit ee9256409f
20 changed files with 39988 additions and 209 deletions
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16
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@ -1,3 +1,19 @@
2019-12-09 Lewis Hyatt <lhyatt@gmail.com>
PR preprocessor/49973
* unicode/from_glibc/unicode_utils.py: Support script from
glibc (commit 464cd3) to extract character widths from Unicode data
files.
* unicode/from_glibc/utf8_gen.py: Likewise.
* unicode/UnicodeData.txt: Unicode v. 12.1.0 data file.
* unicode/EastAsianWidth.txt: Likewise.
* unicode/PropList.txt: Likewise.
* unicode/gen_wcwidth.py: New utility to generate
libcpp/generated_cpp_wcwidth.h with help from the glibc support
scripts and the Unicode data files.
* unicode/unicode-license.txt: Added.
* unicode/README: New explanatory file.
2019-12-07 Richard Sandiford <richard.sandiford@arm.com>
* texi2pod.pl: Handle @headitems in @multitables, printing them

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This directory contains a mechanism for GCC to have its own internal
implementation of wcwidth functionality. (cpp_wcwidth () in libcpp/charset.c).
The idea is to produce the necessary lookup table
(../../libcpp/generated_cpp_wcwidth.h) in a reproducible way, starting from the
following files that are distributed by the Unicode Consortium:
ftp://ftp.unicode.org/Public/UNIDATA/UnicodeData.txt
ftp://ftp.unicode.org/Public/UNIDATA/EastAsianWidth.txt
ftp://ftp.unicode.org/Public/UNIDATA/PropList.txt
These three files have been added to source control in this directory;
please see unicode-license.txt for the relevant copyright information.
In order to keep in sync with glibc's wcwidth as much as possible, it is
desirable for the logic that processes the Unicode data to be the same as
glibc's. To that end, we also put in this directory, in the from_glibc/
directory, the glibc python code that implements their logic. This code was
copied verbatim from glibc, and it can be updated at any time from the glibc
source code repository. The files copied from that respository are:
localedata/unicode-gen/unicode_utils.py
localedata/unicode-gen/utf8_gen.py
And the most recent versions added to GCC are from glibc git commit:
2a764c6ee848dfe92cb2921ed3b14085f15d9e79
Finally, the script gen_wcwidth.py found here contains the GCC-specific code to
map glibc's output to the lookup tables we require. This script should not need
to change, unless there are structural changes to the Unicode data files or to
the glibc code.
The procedure to update GCC's wcwidth tables is the following:
1. Update the three Unicode data files from the above URLs.
2. Update the two glibc files in from_glibc/ from glibc's git. Update
the commit number above in this README.
3. Run ./gen_wcwidth.py X.Y > ../../libcpp/generated_cpp_wcwidth.h
(where X.Y is the version of the Unicode standard corresponding to the
Unicode data files being used, most recently, 12.1).
After that, GCC's wcwidth will match the most recent glibc.

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# Utilities to generate Unicode data for glibc from upstream Unicode data.
#
# Copyright (C) 2014-2019 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
#
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
'''
This module contains utilities used by the scripts to generate
Unicode data for glibc from upstream Unicode data files.
'''
import sys
import re
# Common locale header.
COMMENT_HEADER = """
% This file is part of the GNU C Library and contains locale data.
% The Free Software Foundation does not claim any copyright interest
% in the locale data contained in this file. The foregoing does not
% affect the license of the GNU C Library as a whole. It does not
% exempt you from the conditions of the license if your use would
% otherwise be governed by that license.
"""
# Dictionary holding the entire contents of the UnicodeData.txt file
#
# Contents of this dictionary look like this:
#
# {0: {'category': 'Cc',
# 'title': None,
# 'digit': '',
# 'name': '<control>',
# 'bidi': 'BN',
# 'combining': '0',
# 'comment': '',
# 'oldname': 'NULL',
# 'decomposition': '',
# 'upper': None,
# 'mirrored': 'N',
# 'lower': None,
# 'decdigit': '',
# 'numeric': ''},
# …
# }
UNICODE_ATTRIBUTES = {}
# Dictionary holding the entire contents of the DerivedCoreProperties.txt file
#
# Contents of this dictionary look like this:
#
# {917504: ['Default_Ignorable_Code_Point'],
# 917505: ['Case_Ignorable', 'Default_Ignorable_Code_Point'],
# …
# }
DERIVED_CORE_PROPERTIES = {}
# Dictionary holding the entire contents of the EastAsianWidths.txt file
#
# Contents of this dictionary look like this:
#
# {0: 'N', … , 45430: 'W', …}
EAST_ASIAN_WIDTHS = {}
def fill_attribute(code_point, fields):
'''Stores in UNICODE_ATTRIBUTES[code_point] the values from the fields.
One entry in the UNICODE_ATTRIBUTES dictionary represents one line
in the UnicodeData.txt file.
'''
UNICODE_ATTRIBUTES[code_point] = {
'name': fields[1], # Character name
'category': fields[2], # General category
'combining': fields[3], # Canonical combining classes
'bidi': fields[4], # Bidirectional category
'decomposition': fields[5], # Character decomposition mapping
'decdigit': fields[6], # Decimal digit value
'digit': fields[7], # Digit value
'numeric': fields[8], # Numeric value
'mirrored': fields[9], # mirrored
'oldname': fields[10], # Old Unicode 1.0 name
'comment': fields[11], # comment
# Uppercase mapping
'upper': int(fields[12], 16) if fields[12] else None,
# Lowercase mapping
'lower': int(fields[13], 16) if fields[13] else None,
# Titlecase mapping
'title': int(fields[14], 16) if fields[14] else None,
}
def fill_attributes(filename):
'''Stores the entire contents of the UnicodeData.txt file
in the UNICODE_ATTRIBUTES dictionary.
A typical line for a single code point in UnicodeData.txt looks
like this:
0041;LATIN CAPITAL LETTER A;Lu;0;L;;;;;N;;;;0061;
Code point ranges are indicated by pairs of lines like this:
4E00;<CJK Ideograph, First>;Lo;0;L;;;;;N;;;;;
9FCC;<CJK Ideograph, Last>;Lo;0;L;;;;;N;;;;;
'''
with open(filename, mode='r') as unicode_data_file:
fields_start = []
for line in unicode_data_file:
fields = line.strip().split(';')
if len(fields) != 15:
sys.stderr.write(
'short line in file "%(f)s": %(l)s\n' %{
'f': filename, 'l': line})
exit(1)
if fields[2] == 'Cs':
# Surrogates are UTF-16 artefacts,
# not real characters. Ignore them.
fields_start = []
continue
if fields[1].endswith(', First>'):
fields_start = fields
fields_start[1] = fields_start[1].split(',')[0][1:]
continue
if fields[1].endswith(', Last>'):
fields[1] = fields[1].split(',')[0][1:]
if fields[1:] != fields_start[1:]:
sys.stderr.write(
'broken code point range in file "%(f)s": %(l)s\n' %{
'f': filename, 'l': line})
exit(1)
for code_point in range(
int(fields_start[0], 16),
int(fields[0], 16)+1):
fill_attribute(code_point, fields)
fields_start = []
continue
fill_attribute(int(fields[0], 16), fields)
fields_start = []
def fill_derived_core_properties(filename):
'''Stores the entire contents of the DerivedCoreProperties.txt file
in the DERIVED_CORE_PROPERTIES dictionary.
Lines in DerivedCoreProperties.txt are either a code point range like
this:
0061..007A ; Lowercase # L& [26] LATIN SMALL LETTER A..LATIN SMALL LETTER Z
or a single code point like this:
00AA ; Lowercase # Lo FEMININE ORDINAL INDICATOR
'''
with open(filename, mode='r') as derived_core_properties_file:
for line in derived_core_properties_file:
match = re.match(
r'^(?P<codepoint1>[0-9A-F]{4,6})'
+ r'(?:\.\.(?P<codepoint2>[0-9A-F]{4,6}))?'
+ r'\s*;\s*(?P<property>[a-zA-Z_]+)',
line)
if not match:
continue
start = match.group('codepoint1')
end = match.group('codepoint2')
if not end:
end = start
for code_point in range(int(start, 16), int(end, 16)+1):
prop = match.group('property')
if code_point in DERIVED_CORE_PROPERTIES:
DERIVED_CORE_PROPERTIES[code_point].append(prop)
else:
DERIVED_CORE_PROPERTIES[code_point] = [prop]
def fill_east_asian_widths(filename):
'''Stores the entire contents of the EastAsianWidths.txt file
in the EAST_ASIAN_WIDTHS dictionary.
Lines in EastAsianWidths.txt are either a code point range like
this:
9FCD..9FFF;W # Cn [51] <reserved-9FCD>..<reserved-9FFF>
or a single code point like this:
A015;W # Lm YI SYLLABLE WU
'''
with open(filename, mode='r') as east_asian_widths_file:
for line in east_asian_widths_file:
match = re.match(
r'^(?P<codepoint1>[0-9A-F]{4,6})'
+r'(?:\.\.(?P<codepoint2>[0-9A-F]{4,6}))?'
+r'\s*;\s*(?P<property>[a-zA-Z]+)',
line)
if not match:
continue
start = match.group('codepoint1')
end = match.group('codepoint2')
if not end:
end = start
for code_point in range(int(start, 16), int(end, 16)+1):
EAST_ASIAN_WIDTHS[code_point] = match.group('property')
def to_upper(code_point):
'''Returns the code point of the uppercase version
of the given code point'''
if (UNICODE_ATTRIBUTES[code_point]['name']
and UNICODE_ATTRIBUTES[code_point]['upper']):
return UNICODE_ATTRIBUTES[code_point]['upper']
else:
return code_point
def to_lower(code_point):
'''Returns the code point of the lowercase version
of the given code point'''
if (UNICODE_ATTRIBUTES[code_point]['name']
and UNICODE_ATTRIBUTES[code_point]['lower']):
return UNICODE_ATTRIBUTES[code_point]['lower']
else:
return code_point
def to_upper_turkish(code_point):
'''Returns the code point of the Turkish uppercase version
of the given code point'''
if code_point == 0x0069:
return 0x0130
return to_upper(code_point)
def to_lower_turkish(code_point):
'''Returns the code point of the Turkish lowercase version
of the given code point'''
if code_point == 0x0049:
return 0x0131
return to_lower(code_point)
def to_title(code_point):
'''Returns the code point of the titlecase version
of the given code point'''
if (UNICODE_ATTRIBUTES[code_point]['name']
and UNICODE_ATTRIBUTES[code_point]['title']):
return UNICODE_ATTRIBUTES[code_point]['title']
else:
return code_point
def is_upper(code_point):
'''Checks whether the character with this code point is uppercase'''
return (to_lower(code_point) != code_point
or (code_point in DERIVED_CORE_PROPERTIES
and 'Uppercase' in DERIVED_CORE_PROPERTIES[code_point]))
def is_lower(code_point):
'''Checks whether the character with this code point is lowercase'''
# Some characters are defined as “Lowercase” in
# DerivedCoreProperties.txt but do not have a mapping to upper
# case. For example, ꜰ U+A72F “LATIN LETTER SMALL CAPITAL F” is
# one of these.
return (to_upper(code_point) != code_point
# <U00DF> is lowercase, but without simple to_upper mapping.
or code_point == 0x00DF
or (code_point in DERIVED_CORE_PROPERTIES
and 'Lowercase' in DERIVED_CORE_PROPERTIES[code_point]))
def is_alpha(code_point):
'''Checks whether the character with this code point is alphabetic'''
return ((code_point in DERIVED_CORE_PROPERTIES
and
'Alphabetic' in DERIVED_CORE_PROPERTIES[code_point])
or
# Consider all the non-ASCII digits as alphabetic.
# ISO C 99 forbids us to have them in category “digit”,
# but we want iswalnum to return true on them.
(UNICODE_ATTRIBUTES[code_point]['category'] == 'Nd'
and not (code_point >= 0x0030 and code_point <= 0x0039)))
def is_digit(code_point):
'''Checks whether the character with this code point is a digit'''
if False:
return (UNICODE_ATTRIBUTES[code_point]['name']
and UNICODE_ATTRIBUTES[code_point]['category'] == 'Nd')
# Note: U+0BE7..U+0BEF and U+1369..U+1371 are digit systems without
# a zero. Must add <0> in front of them by hand.
else:
# SUSV2 gives us some freedom for the "digit" category, but ISO C 99
# takes it away:
# 7.25.2.1.5:
# The iswdigit function tests for any wide character that
# corresponds to a decimal-digit character (as defined in 5.2.1).
# 5.2.1:
# the 10 decimal digits 0 1 2 3 4 5 6 7 8 9
return (code_point >= 0x0030 and code_point <= 0x0039)
def is_outdigit(code_point):
'''Checks whether the character with this code point is outdigit'''
return (code_point >= 0x0030 and code_point <= 0x0039)
def is_blank(code_point):
'''Checks whether the character with this code point is blank'''
return (code_point == 0x0009 # '\t'
# Category Zs without mention of '<noBreak>'
or (UNICODE_ATTRIBUTES[code_point]['name']
and UNICODE_ATTRIBUTES[code_point]['category'] == 'Zs'
and '<noBreak>' not in
UNICODE_ATTRIBUTES[code_point]['decomposition']))
def is_space(code_point):
'''Checks whether the character with this code point is a space'''
# Don’t make U+00A0 a space. Non-breaking space means that all programs
# should treat it like a punctuation character, not like a space.
return (code_point == 0x0020 # ' '
or code_point == 0x000C # '\f'
or code_point == 0x000A # '\n'
or code_point == 0x000D # '\r'
or code_point == 0x0009 # '\t'
or code_point == 0x000B # '\v'
# Categories Zl, Zp, and Zs without mention of "<noBreak>"
or (UNICODE_ATTRIBUTES[code_point]['name']
and
(UNICODE_ATTRIBUTES[code_point]['category'] in ['Zl', 'Zp']
or
(UNICODE_ATTRIBUTES[code_point]['category'] in ['Zs']
and
'<noBreak>' not in
UNICODE_ATTRIBUTES[code_point]['decomposition']))))
def is_cntrl(code_point):
'''Checks whether the character with this code point is
a control character'''
return (UNICODE_ATTRIBUTES[code_point]['name']
and (UNICODE_ATTRIBUTES[code_point]['name'] == '<control>'
or
UNICODE_ATTRIBUTES[code_point]['category'] in ['Zl', 'Zp']))
def is_xdigit(code_point):
'''Checks whether the character with this code point is
a hexadecimal digit'''
if False:
return (is_digit(code_point)
or (code_point >= 0x0041 and code_point <= 0x0046)
or (code_point >= 0x0061 and code_point <= 0x0066))
else:
# SUSV2 gives us some freedom for the "xdigit" category, but ISO C 99
# takes it away:
# 7.25.2.1.12:
# The iswxdigit function tests for any wide character that
# corresponds to a hexadecimal-digit character (as defined
# in 6.4.4.1).
# 6.4.4.1:
# hexadecimal-digit: one of
# 0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F
return ((code_point >= 0x0030 and code_point <= 0x0039)
or (code_point >= 0x0041 and code_point <= 0x0046)
or (code_point >= 0x0061 and code_point <= 0x0066))
def is_graph(code_point):
'''Checks whether the character with this code point is
a graphical character'''
return (UNICODE_ATTRIBUTES[code_point]['name']
and UNICODE_ATTRIBUTES[code_point]['name'] != '<control>'
and not is_space(code_point))
def is_print(code_point):
'''Checks whether the character with this code point is printable'''
return (UNICODE_ATTRIBUTES[code_point]['name']
and UNICODE_ATTRIBUTES[code_point]['name'] != '<control>'
and UNICODE_ATTRIBUTES[code_point]['category'] not in ['Zl', 'Zp'])
def is_punct(code_point):
'''Checks whether the character with this code point is punctuation'''
if False:
return (UNICODE_ATTRIBUTES[code_point]['name']
and UNICODE_ATTRIBUTES[code_point]['category'].startswith('P'))
else:
# The traditional POSIX definition of punctuation is every graphic,
# non-alphanumeric character.
return (is_graph(code_point)
and not is_alpha(code_point)
and not is_digit(code_point))
def is_combining(code_point):
'''Checks whether the character with this code point is
a combining character'''
# Up to Unicode 3.0.1 we took the Combining property from the PropList.txt
# file. In 3.0.1 it was identical to the union of the general categories
# "Mn", "Mc", "Me". In Unicode 3.1 this property has been dropped from the
# PropList.txt file, so we take the latter definition.
return (UNICODE_ATTRIBUTES[code_point]['name']
and
UNICODE_ATTRIBUTES[code_point]['category'] in ['Mn', 'Mc', 'Me'])
def is_combining_level3(code_point):
'''Checks whether the character with this code point is
a combining level3 character'''
return (is_combining(code_point)
and
int(UNICODE_ATTRIBUTES[code_point]['combining']) in range(0, 200))
def ucs_symbol(code_point):
'''Return the UCS symbol string for a Unicode character.'''
if code_point < 0x10000:
return '<U{:04X}>'.format(code_point)
else:
return '<U{:08X}>'.format(code_point)
def ucs_symbol_range(code_point_low, code_point_high):
'''Returns a string UCS symbol string for a code point range.
Example:
<U0041>..<U005A>
'''
return ucs_symbol(code_point_low) + '..' + ucs_symbol(code_point_high)
def verifications():
'''Tests whether the is_* functions observe the known restrictions'''
for code_point in sorted(UNICODE_ATTRIBUTES):
# toupper restriction: "Only characters specified for the keywords
# lower and upper shall be specified.
if (to_upper(code_point) != code_point
and not (is_lower(code_point) or is_upper(code_point))):
sys.stderr.write(
('%(sym)s is not upper|lower '
+ 'but toupper(0x%(c)04X) = 0x%(uc)04X\n') %{
'sym': ucs_symbol(code_point),
'c': code_point,
'uc': to_upper(code_point)})
# tolower restriction: "Only characters specified for the keywords
# lower and upper shall be specified.
if (to_lower(code_point) != code_point
and not (is_lower(code_point) or is_upper(code_point))):
sys.stderr.write(
('%(sym)s is not upper|lower '
+ 'but tolower(0x%(c)04X) = 0x%(uc)04X\n') %{
'sym': ucs_symbol(code_point),
'c': code_point,
'uc': to_lower(code_point)})
# alpha restriction: "Characters classified as either upper or lower
# shall automatically belong to this class.
if ((is_lower(code_point) or is_upper(code_point))
and not is_alpha(code_point)):
sys.stderr.write('%(sym)s is upper|lower but not alpha\n' %{
'sym': ucs_symbol(code_point)})
# alpha restriction: “No character specified for the keywords cntrl,
# digit, punct or space shall be specified.”
if (is_alpha(code_point) and is_cntrl(code_point)):
sys.stderr.write('%(sym)s is alpha and cntrl\n' %{
'sym': ucs_symbol(code_point)})
if (is_alpha(code_point) and is_digit(code_point)):
sys.stderr.write('%(sym)s is alpha and digit\n' %{
'sym': ucs_symbol(code_point)})
if (is_alpha(code_point) and is_punct(code_point)):
sys.stderr.write('%(sym)s is alpha and punct\n' %{
'sym': ucs_symbol(code_point)})
if (is_alpha(code_point) and is_space(code_point)):
sys.stderr.write('%(sym)s is alpha and space\n' %{
'sym': ucs_symbol(code_point)})
# space restriction: “No character specified for the keywords upper,
# lower, alpha, digit, graph or xdigit shall be specified.”
# upper, lower, alpha already checked above.
if (is_space(code_point) and is_digit(code_point)):
sys.stderr.write('%(sym)s is space and digit\n' %{
'sym': ucs_symbol(code_point)})
if (is_space(code_point) and is_graph(code_point)):
sys.stderr.write('%(sym)s is space and graph\n' %{
'sym': ucs_symbol(code_point)})
if (is_space(code_point) and is_xdigit(code_point)):
sys.stderr.write('%(sym)s is space and xdigit\n' %{
'sym': ucs_symbol(code_point)})
# cntrl restriction: “No character specified for the keywords upper,
# lower, alpha, digit, punct, graph, print or xdigit shall be
# specified.” upper, lower, alpha already checked above.
if (is_cntrl(code_point) and is_digit(code_point)):
sys.stderr.write('%(sym)s is cntrl and digit\n' %{
'sym': ucs_symbol(code_point)})
if (is_cntrl(code_point) and is_punct(code_point)):
sys.stderr.write('%(sym)s is cntrl and punct\n' %{
'sym': ucs_symbol(code_point)})
if (is_cntrl(code_point) and is_graph(code_point)):
sys.stderr.write('%(sym)s is cntrl and graph\n' %{
'sym': ucs_symbol(code_point)})
if (is_cntrl(code_point) and is_print(code_point)):
sys.stderr.write('%(sym)s is cntrl and print\n' %{
'sym': ucs_symbol(code_point)})
if (is_cntrl(code_point) and is_xdigit(code_point)):
sys.stderr.write('%(sym)s is cntrl and xdigit\n' %{
'sym': ucs_symbol(code_point)})
# punct restriction: “No character specified for the keywords upper,
# lower, alpha, digit, cntrl, xdigit or as the <space> character shall
# be specified.” upper, lower, alpha, cntrl already checked above.
if (is_punct(code_point) and is_digit(code_point)):
sys.stderr.write('%(sym)s is punct and digit\n' %{
'sym': ucs_symbol(code_point)})
if (is_punct(code_point) and is_xdigit(code_point)):
sys.stderr.write('%(sym)s is punct and xdigit\n' %{
'sym': ucs_symbol(code_point)})
if (is_punct(code_point) and code_point == 0x0020):
sys.stderr.write('%(sym)s is punct\n' %{
'sym': ucs_symbol(code_point)})
# graph restriction: “No character specified for the keyword cntrl
# shall be specified.” Already checked above.
# print restriction: “No character specified for the keyword cntrl
# shall be specified.” Already checked above.
# graph - print relation: differ only in the <space> character.
# How is this possible if there are more than one space character?!
# I think susv2/xbd/locale.html should speak of “space characters”,
# not “space character”.
if (is_print(code_point)
and not (is_graph(code_point) or is_space(code_point))):
sys.stderr.write('%(sym)s is print but not graph|<space>\n' %{
'sym': unicode_utils.ucs_symbol(code_point)})
if (not is_print(code_point)
and (is_graph(code_point) or code_point == 0x0020)):
sys.stderr.write('%(sym)s is graph|<space> but not print\n' %{
'sym': unicode_utils.ucs_symbol(code_point)})

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#!/usr/bin/python3
# -*- coding: utf-8 -*-
# Copyright (C) 2014-2019 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
#
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
'''glibc/localedata/charmaps/UTF-8 file generator script
This script generates a glibc/localedata/charmaps/UTF-8 file
from Unicode data.
Usage: python3 utf8_gen.py UnicodeData.txt EastAsianWidth.txt
It will output UTF-8 file
'''
import argparse
import sys
import re
import unicode_utils
# Auxiliary tables for Hangul syllable names, see the Unicode 3.0 book,
# sections 3.11 and 4.4.
JAMO_INITIAL_SHORT_NAME = (
'G', 'GG', 'N', 'D', 'DD', 'R', 'M', 'B', 'BB', 'S', 'SS', '', 'J', 'JJ',
'C', 'K', 'T', 'P', 'H'
)
JAMO_MEDIAL_SHORT_NAME = (
'A', 'AE', 'YA', 'YAE', 'EO', 'E', 'YEO', 'YE', 'O', 'WA', 'WAE', 'OE',
'YO', 'U', 'WEO', 'WE', 'WI', 'YU', 'EU', 'YI', 'I'
)
JAMO_FINAL_SHORT_NAME = (
'', 'G', 'GG', 'GS', 'N', 'NI', 'NH', 'D', 'L', 'LG', 'LM', 'LB', 'LS',
'LT', 'LP', 'LH', 'M', 'B', 'BS', 'S', 'SS', 'NG', 'J', 'C', 'K', 'T',
'P', 'H'
)
def process_range(start, end, outfile, name):
'''Writes a range of code points into the CHARMAP section of the
output file
'''
if 'Hangul Syllable' in name:
# from glibc/localedata/ChangeLog:
#
# 2000-09-24 Bruno Haible <haible@clisp.cons.org>
# * charmaps/UTF-8: Expand <Hangul Syllable> and <Private Use> ranges,
# so they become printable and carry a width. Comment out surrogate
# ranges. Add a WIDTH table
#
# So we expand the Hangul Syllables here:
for i in range(int(start, 16), int(end, 16)+1 ):
index2, index3 = divmod(i - 0xaC00, 28)
index1, index2 = divmod(index2, 21)
hangul_syllable_name = 'HANGUL SYLLABLE ' \
+ JAMO_INITIAL_SHORT_NAME[index1] \
+ JAMO_MEDIAL_SHORT_NAME[index2] \
+ JAMO_FINAL_SHORT_NAME[index3]
outfile.write('{:<11s} {:<12s} {:s}\n'.format(
unicode_utils.ucs_symbol(i), convert_to_hex(i),
hangul_syllable_name))
return
# UnicodeData.txt file has contains code point ranges like this:
#
# 3400;<CJK Ideograph Extension A, First>;Lo;0;L;;;;;N;;;;;
# 4DB5;<CJK Ideograph Extension A, Last>;Lo;0;L;;;;;N;;;;;
#
# The glibc UTF-8 file splits ranges like these into shorter
# ranges of 64 code points each:
#
# <U3400>..<U343F> /xe3/x90/x80 <CJK Ideograph Extension A>
# …
# <U4D80>..<U4DB5> /xe4/xb6/x80 <CJK Ideograph Extension A>
for i in range(int(start, 16), int(end, 16), 64 ):
if i > (int(end, 16)-64):
outfile.write('{:s}..{:s} {:<12s} {:s}\n'.format(
unicode_utils.ucs_symbol(i),
unicode_utils.ucs_symbol(int(end,16)),
convert_to_hex(i),
name))
break
outfile.write('{:s}..{:s} {:<12s} {:s}\n'.format(
unicode_utils.ucs_symbol(i),
unicode_utils.ucs_symbol(i+63),
convert_to_hex(i),
name))
def process_charmap(flines, outfile):
'''This function takes an array which contains *all* lines of
of UnicodeData.txt and write lines to outfile as used in the
CHARMAP
…
END CHARMAP
section of the UTF-8 file in glibc/localedata/charmaps/UTF-8.
Samples for input lines:
0010;<control>;Cc;0;BN;;;;;N;DATA LINK ESCAPE;;;;
3400;<CJK Ideograph Extension A, First>;Lo;0;L;;;;;N;;;;;
4DB5;<CJK Ideograph Extension A, Last>;Lo;0;L;;;;;N;;;;;
D800;<Non Private Use High Surrogate, First>;Cs;0;L;;;;;N;;;;;
DB7F;<Non Private Use High Surrogate, Last>;Cs;0;L;;;;;N;;;;;
100000;<Plane 16 Private Use, First>;Co;0;L;;;;;N;;;;;
10FFFD;<Plane 16 Private Use, Last>;Co;0;L;;;;;N;;;;;
Samples for output lines (Unicode-Value UTF-8-HEX Unicode-Char-Name):
<U0010> /x10 DATA LINK ESCAPE
<U3400>..<U343F> /xe3/x90/x80 <CJK Ideograph Extension A>
%<UD800> /xed/xa0/x80 <Non Private Use High Surrogate, First>
%<UDB7F> /xed/xad/xbf <Non Private Use High Surrogate, Last>
<U0010FFC0>..<U0010FFFD> /xf4/x8f/xbf/x80 <Plane 16 Private Use>
'''
fields_start = []
for line in flines:
fields = line.split(";")
# Some characters have “<control>” as their name. We try to
# use the “Unicode 1.0 Name” (10th field in
# UnicodeData.txt) for them.
#
# The Characters U+0080, U+0081, U+0084 and U+0099 have
# “<control>” as their name but do not even have aa
# ”Unicode 1.0 Name”. We could write code to take their
# alternate names from NameAliases.txt.
if fields[1] == "<control>" and fields[10]:
fields[1] = fields[10]
# Handling code point ranges like:
#
# 3400;<CJK Ideograph Extension A, First>;Lo;0;L;;;;;N;;;;;
# 4DB5;<CJK Ideograph Extension A, Last>;Lo;0;L;;;;;N;;;;;
if fields[1].endswith(', First>') and not 'Surrogate,' in fields[1]:
fields_start = fields
continue
if fields[1].endswith(', Last>') and not 'Surrogate,' in fields[1]:
process_range(fields_start[0], fields[0],
outfile, fields[1][:-7]+'>')
fields_start = []
continue
fields_start = []
if 'Surrogate,' in fields[1]:
# Comment out the surrogates in the UTF-8 file.
# One could of course skip them completely but
# the original UTF-8 file in glibc had them as
# comments, so we keep these comment lines.
outfile.write('%')
outfile.write('{:<11s} {:<12s} {:s}\n'.format(
unicode_utils.ucs_symbol(int(fields[0], 16)),
convert_to_hex(int(fields[0], 16)),
fields[1]))
def convert_to_hex(code_point):
'''Converts a code point to a hexadecimal UTF-8 representation
like /x**/x**/x**.'''
# Getting UTF8 of Unicode characters.
# In Python3, .encode('UTF-8') does not work for
# surrogates. Therefore, we use this conversion table
surrogates = {
0xD800: '/xed/xa0/x80',
0xDB7F: '/xed/xad/xbf',
0xDB80: '/xed/xae/x80',
0xDBFF: '/xed/xaf/xbf',
0xDC00: '/xed/xb0/x80',
0xDFFF: '/xed/xbf/xbf',
}
if code_point in surrogates:
return surrogates[code_point]
return ''.join([
'/x{:02x}'.format(c) for c in chr(code_point).encode('UTF-8')
])
def write_header_charmap(outfile):
'''Write the header on top of the CHARMAP section to the output file'''
outfile.write("<code_set_name> UTF-8\n")
outfile.write("<comment_char> %\n")
outfile.write("<escape_char> /\n")
outfile.write("<mb_cur_min> 1\n")
outfile.write("<mb_cur_max> 6\n\n")
outfile.write("% CHARMAP generated using utf8_gen.py\n")
outfile.write("% alias ISO-10646/UTF-8\n")
outfile.write("CHARMAP\n")
def write_header_width(outfile, unicode_version):
'''Writes the header on top of the WIDTH section to the output file'''
outfile.write('% Character width according to Unicode '
+ '{:s}.\n'.format(unicode_version))
outfile.write('% - Default width is 1.\n')
outfile.write('% - Double-width characters have width 2; generated from\n')
outfile.write('% "grep \'^[^;]*;[WF]\' EastAsianWidth.txt"\n')
outfile.write('% - Non-spacing characters have width 0; '
+ 'generated from PropList.txt or\n')
outfile.write('% "grep \'^[^;]*;[^;]*;[^;]*;[^;]*;NSM;\' '
+ 'UnicodeData.txt"\n')
outfile.write('% - Format control characters have width 0; '
+ 'generated from\n')
outfile.write("% \"grep '^[^;]*;[^;]*;Cf;' UnicodeData.txt\"\n")
# Not needed covered by Cf
# outfile.write("% - Zero width characters have width 0; generated from\n")
# outfile.write("% \"grep '^[^;]*;ZERO WIDTH ' UnicodeData.txt\"\n")
outfile.write("WIDTH\n")
def process_width(outfile, ulines, elines, plines):
'''ulines are lines from UnicodeData.txt, elines are lines from
EastAsianWidth.txt containing characters with width “W” or “F”,
plines are lines from PropList.txt which contain characters
with the property “Prepended_Concatenation_Mark”.
'''
width_dict = {}
for line in elines:
fields = line.split(";")
if not '..' in fields[0]:
code_points = (fields[0], fields[0])
else:
code_points = fields[0].split("..")
for key in range(int(code_points[0], 16),
int(code_points[1], 16)+1):
width_dict[key] = 2
for line in ulines:
fields = line.split(";")
if fields[4] == "NSM" or fields[2] in ("Cf", "Me", "Mn"):
width_dict[int(fields[0], 16)] = 0
for line in plines:
# Characters with the property “Prepended_Concatenation_Mark”
# should have the width 1:
fields = line.split(";")
if not '..' in fields[0]:
code_points = (fields[0], fields[0])
else:
code_points = fields[0].split("..")
for key in range(int(code_points[0], 16),
int(code_points[1], 16)+1):
del width_dict[key] # default width is 1
# handle special cases for compatibility
for key in list((0x00AD,)):
# https://www.cs.tut.fi/~jkorpela/shy.html
if key in width_dict:
del width_dict[key] # default width is 1
for key in list(range(0x1160, 0x1200)):
width_dict[key] = 0
for key in list(range(0x3248, 0x3250)):
# These are “A” which means we can decide whether to treat them
# as “W” or “N” based on context:
# http://www.unicode.org/mail-arch/unicode-ml/y2017-m08/0023.html
# For us, “W” seems better.
width_dict[key] = 2
for key in list(range(0x4DC0, 0x4E00)):
width_dict[key] = 2
same_width_lists = []
current_width_list = []
for key in sorted(width_dict):
if not current_width_list:
current_width_list = [key]
elif (key == current_width_list[-1] + 1
and width_dict[key] == width_dict[current_width_list[0]]):
current_width_list.append(key)
else:
same_width_lists.append(current_width_list)
current_width_list = [key]
if current_width_list:
same_width_lists.append(current_width_list)
for same_width_list in same_width_lists:
if len(same_width_list) == 1:
outfile.write('{:s}\t{:d}\n'.format(
unicode_utils.ucs_symbol(same_width_list[0]),
width_dict[same_width_list[0]]))
else:
outfile.write('{:s}...{:s}\t{:d}\n'.format(
unicode_utils.ucs_symbol(same_width_list[0]),
unicode_utils.ucs_symbol(same_width_list[-1]),
width_dict[same_width_list[0]]))
if __name__ == "__main__":
PARSER = argparse.ArgumentParser(
description='''
Generate a UTF-8 file from UnicodeData.txt, EastAsianWidth.txt, and PropList.txt.
''')
PARSER.add_argument(
'-u', '--unicode_data_file',
nargs='?',
type=str,
default='UnicodeData.txt',
help=('The UnicodeData.txt file to read, '
+ 'default: %(default)s'))
PARSER.add_argument(
'-e', '--east_asian_with_file',
nargs='?',
type=str,
default='EastAsianWidth.txt',
help=('The EastAsianWidth.txt file to read, '
+ 'default: %(default)s'))
PARSER.add_argument(
'-p', '--prop_list_file',
nargs='?',
type=str,
default='PropList.txt',
help=('The PropList.txt file to read, '
+ 'default: %(default)s'))
PARSER.add_argument(
'--unicode_version',
nargs='?',
required=True,
type=str,
help='The Unicode version of the input files used.')
ARGS = PARSER.parse_args()
with open(ARGS.unicode_data_file, mode='r') as UNIDATA_FILE:
UNICODE_DATA_LINES = UNIDATA_FILE.readlines()
with open(ARGS.east_asian_with_file, mode='r') as EAST_ASIAN_WIDTH_FILE:
EAST_ASIAN_WIDTH_LINES = []
for LINE in EAST_ASIAN_WIDTH_FILE:
# If characters from EastAasianWidth.txt which are from
# from reserved ranges (i.e. not yet assigned code points)
# are added to the WIDTH section of the UTF-8 file, then
# “make check” produces “Unknown Character” errors for
# these code points because such unassigned code points
# are not in the CHARMAP section of the UTF-8 file.
#
# Therefore, we skip all reserved code points when reading
# the EastAsianWidth.txt file.
if re.match(r'.*<reserved-.+>\.\.<reserved-.+>.*', LINE):
continue
if re.match(r'^[^;]*;[WF]', LINE):
EAST_ASIAN_WIDTH_LINES.append(LINE.strip())
with open(ARGS.prop_list_file, mode='r') as PROP_LIST_FILE:
PROP_LIST_LINES = []
for LINE in PROP_LIST_FILE:
if re.match(r'^[^;]*;[\s]*Prepended_Concatenation_Mark', LINE):
PROP_LIST_LINES.append(LINE.strip())
with open('UTF-8', mode='w') as OUTFILE:
# Processing UnicodeData.txt and write CHARMAP to UTF-8 file
write_header_charmap(OUTFILE)
process_charmap(UNICODE_DATA_LINES, OUTFILE)
OUTFILE.write("END CHARMAP\n\n")
# Processing EastAsianWidth.txt and write WIDTH to UTF-8 file
write_header_width(OUTFILE, ARGS.unicode_version)
process_width(OUTFILE,
UNICODE_DATA_LINES,
EAST_ASIAN_WIDTH_LINES,
PROP_LIST_LINES)
OUTFILE.write("END WIDTH\n")

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#!/usr/bin/env python3
#
# Script to generate tables for cpp_wcwidth, leveraging glibc's utf8_gen.py.
#
# This file is part of GCC.
#
# GCC is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3, or (at your option) any later
# version.
#
# GCC is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>. */
import sys
import os
if len(sys.argv) != 2:
print("usage: %s <unicode version>", file=sys.stderr)
sys.exit(1)
unicode_version = sys.argv[1]
# Parse a codepoint in the format output by glibc tools.
def parse_ucn(s):
if not (s.startswith("<U") and s.endswith(">")):
raise ValueError
return int(s[2:-1], base=16)
# Process a line of width output from utf_gen.py and update global array.
widths = [1] * (1 + 0x10FFFF)
def process_width(line):
# Example lines:
# <UA8FF> 0
# <UA926>...<UA92D> 0
s = line.split()
width = int(s[1])
r = s[0].split("...")
if len(r) == 1:
begin = parse_ucn(r[0])
end = begin + 1
elif len(r) == 2:
begin = parse_ucn(r[0])
end = parse_ucn(r[1]) + 1
else:
raise ValueError
widths[begin:end] = [width] * (end - begin)
# To keep things simple, we use glibc utf8_gen.py as-is. It only outputs to a
# file named UTF-8, which is not configurable. Then we parse this into the form
# we want it.
os.system("from_glibc/utf8_gen.py --unicode_version %s" % unicode_version)
processing = False
for line in open("UTF-8", "r"):
if processing:
if line == "END WIDTH\n":
processing = False
else:
try:
process_width(line)
except (ValueError, IndexError):
print(e, "warning: ignored unexpected line: %s" % line,
file=sys.stderr, end="")
elif line == "WIDTH\n":
processing = True
# All bytes < 256 we treat as width 1.
widths[0:255] = [1] * 255
# Condense the list to contiguous ranges.
cur_range = [-1, 1]
all_ranges = []
for i, width in enumerate(widths):
if width == cur_range[1]:
cur_range[0] = i
else:
all_ranges.append(cur_range)
cur_range = [i, width]
# Output the arrays for generated_cpp_wcwidth.h
print("/* Generated by contrib/unicode/gen_wcwidth.py,",
"with the help of glibc's")
print(" utf8_gen.py, using version %s" % unicode_version,
"of the Unicode standard. */")
print("\nstatic const cppchar_t wcwidth_range_ends[] = {", end="")
for i, r in enumerate(all_ranges):
if i % 8:
print(" ", end="")
else:
print("\n ", end="")
print("0x%x," % (r[0]), end="")
print("\n};\n")
print("static const unsigned char wcwidth_widths[] = {", end="")
for i, r in enumerate(all_ranges):
if i % 24:
print(" ", end="")
else:
print("\n ", end="")
print("%d," % r[1], end="")
print("\n};")

50
contrib/unicode/unicode-license.txt Normal file
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UNICODE, INC. LICENSE AGREEMENT - DATA FILES AND SOFTWARE
Unicode Data Files include all data files under the directories
http://www.unicode.org/Public/, http://www.unicode.org/reports/, and
http://www.unicode.org/cldr/data/. Unicode Data Files do not include PDF
online code charts under the directory http://www.unicode.org/Public/.
Software includes any source code published in the Unicode Standard or under
the directories http://www.unicode.org/Public/,
http://www.unicode.org/reports/, and http://www.unicode.org/cldr/data/.
NOTICE TO USER: Carefully read the following legal agreement. BY
DOWNLOADING, INSTALLING, COPYING OR OTHERWISE USING UNICODE INC.'S DATA FILES
("DATA FILES"), AND/OR SOFTWARE ("SOFTWARE"), YOU UNEQUIVOCALLY ACCEPT, AND
AGREE TO BE BOUND BY, ALL OF THE TERMS AND CONDITIONS OF THIS AGREEMENT. IF
YOU DO NOT AGREE, DO NOT DOWNLOAD, INSTALL, COPY, DISTRIBUTE OR USE THE DATA
FILES OR SOFTWARE.
COPYRIGHT AND PERMISSION NOTICE
Copyright © 1991-2013 Unicode, Inc. All rights reserved. Distributed under
the Terms of Use in http://www.unicode.org/copyright.html.
Permission is hereby granted, free of charge, to any person obtaining a
copy of the Unicode data files and any associated documentation (the "Data
Files") or Unicode software and any associated documentation (the "Software")
to deal in the Data Files or Software without restriction, including without
limitation the rights to use, copy, modify, merge, publish, distribute, and/or
sell copies of the Data Files or Software, and to permit persons to whom the
Data Files or Software are furnished to do so, provided that (a) the above
copyright notice(s) and this permission notice appear with all copies of the
Data Files or Software, (b) both the above copyright notice(s) and this
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76
gcc/ChangeLog
View File

@ -1,3 +1,79 @@
2019-12-09 Lewis Hyatt <lhyatt@gmail.com>
PR preprocessor/49973
* input.c (location_compute_display_column): New function to help with
multibyte awareness in diagnostics.
(test_cpp_utf8): New self-test.
(input_c_tests): Call the new test.
* input.h (location_compute_display_column): Declare.
* diagnostic-show-locus.c: Pervasive changes to add multibyte awareness
to all classes and functions.
(enum column_unit): New enum.
(class exploc_with_display_col): New class.
(class layout_point): Convert m_column member to array m_columns[2].
(layout_range::contains_point): Add col_unit argument.
(test_layout_range_for_single_point): Pass new argument.
(test_layout_range_for_single_line): Likewise.
(test_layout_range_for_multiple_lines): Likewise.
(line_bounds::convert_to_display_cols): New function.
(layout::get_state_at_point): Add col_unit argument.
(make_range): Use empty filename rather than dummy filename.
(get_line_width_without_trailing_whitespace): Rename to...
(get_line_bytes_without_trailing_whitespace): ...this.
(test_get_line_width_without_trailing_whitespace): Rename to...
(test_get_line_bytes_without_trailing_whitespace): ...this.
(class layout): m_exploc changed to exploc_with_display_col from
plain expanded_location.
(layout::get_linenum_width): New accessor member function.
(layout::get_x_offset_display): Likewise.
(layout::calculate_linenum_width): New subroutine for the constuctor.
(layout::calculate_x_offset_display): Likewise.
(layout::layout): Use the new subroutines. Add multibyte awareness.
(layout::print_source_line): Add multibyte awareness.
(layout::print_line): Likewise.
(layout::print_annotation_line): Likewise.
(line_label::line_label): Likewise.
(layout::print_any_labels): Likewise.
(layout::annotation_line_showed_range_p): Likewise.
(get_printed_columns): Likewise.
(class line_label): Rename m_length to m_display_width.
(get_affected_columns): Rename to...
(get_affected_range): ...this; add col_unit argument and multibyte
awareness.
(class correction): Add m_affected_bytes and m_display_cols
members. Rename m_len to m_byte_length for clarity. Add multibyte
awareness throughout.
(correction::insertion_p): Add multibyte awareness.
(correction::compute_display_cols): New function.
(correction::ensure_terminated): Use new member name m_byte_length.
(line_corrections::add_hint): Add multibyte awareness.
(layout::print_trailing_fixits): Likewise.
(layout::get_x_bound_for_row): Likewise.
(test_one_liner_simple_caret_utf8): New self-test analogous to the one
with _utf8 suffix removed, testing multibyte awareness.
(test_one_liner_caret_and_range_utf8): Likewise.
(test_one_liner_multiple_carets_and_ranges_utf8): Likewise.
(test_one_liner_fixit_insert_before_utf8): Likewise.
(test_one_liner_fixit_insert_after_utf8): Likewise.
(test_one_liner_fixit_remove_utf8): Likewise.
(test_one_liner_fixit_replace_utf8): Likewise.
(test_one_liner_fixit_replace_non_equal_range_utf8): Likewise.
(test_one_liner_fixit_replace_equal_secondary_range_utf8): Likewise.
(test_one_liner_fixit_validation_adhoc_locations_utf8): Likewise.
(test_one_liner_many_fixits_1_utf8): Likewise.
(test_one_liner_many_fixits_2_utf8): Likewise.
(test_one_liner_labels_utf8): Likewise.
(test_diagnostic_show_locus_one_liner_utf8): Likewise.
(test_overlapped_fixit_printing_utf8): Likewise.
(test_overlapped_fixit_printing): Adapt for changes to
get_affected_columns, get_printed_columns and class corrections.
(test_overlapped_fixit_printing_2): Likewise.
(test_linenum_sep): New constant.
(test_left_margin): Likewise.
(test_offset_impl): Helper function for new test.
(test_layout_x_offset_display_utf8): New test.
(diagnostic_show_locus_c_tests): Call new tests.
2019-12-09 Eric Botcazou <ebotcazou@adacore.com>
* tree.c (build_array_type_1): Add SET_CANONICAL parameter and compute

1631
gcc/diagnostic-show-locus.c
View File

File diff suppressed because it is too large Load Diff

105
gcc/input.c
View File

@ -908,6 +908,22 @@ make_location (location_t caret, source_range src_range)
return COMBINE_LOCATION_DATA (line_table, pure_loc, src_range, NULL);
}
/* An expanded_location stores the column in byte units. This function
converts that column to display units. That requires reading the associated
source line in order to calculate the display width. If that cannot be done
for any reason, then returns the byte column as a fallback. */
int
location_compute_display_column (expanded_location exploc)
{
if (!(exploc.file && *exploc.file && exploc.line && exploc.column))
return exploc.column;
char_span line = location_get_source_line (exploc.file, exploc.line);
/* If line is NULL, this function returns exploc.column which is the
desired fallback. */
return cpp_byte_column_to_display_column (line.get_buffer (), line.length (),
exploc.column);
}
/* Dump statistics to stderr about the memory usage of the line_table
set of line maps. This also displays some statistics about macro
expansion. */
@ -3590,6 +3606,93 @@ test_line_offset_overflow ()
ASSERT_NE (ordmap_a, ordmap_b);
}
void test_cpp_utf8 ()
{
/* Verify that wcwidth of invalid UTF-8 or control bytes is 1. */
{
int w_bad = cpp_display_width ("\xf0!\x9f!\x98!\x82!", 8);
ASSERT_EQ (8, w_bad);
int w_ctrl = cpp_display_width ("\r\t\n\v\0\1", 6);
ASSERT_EQ (6, w_ctrl);
}
/* Verify that wcwidth of valid UTF-8 is as expected. */
{
const int w_pi = cpp_display_width ("\xcf\x80", 2);
ASSERT_EQ (1, w_pi);
const int w_emoji = cpp_display_width ("\xf0\x9f\x98\x82", 4);
ASSERT_EQ (2, w_emoji);
const int w_umlaut_precomposed = cpp_display_width ("\xc3\xbf", 2);
ASSERT_EQ (1, w_umlaut_precomposed);
const int w_umlaut_combining = cpp_display_width ("y\xcc\x88", 3);
ASSERT_EQ (1, w_umlaut_combining);
const int w_han = cpp_display_width ("\xe4\xb8\xba", 3);
ASSERT_EQ (2, w_han);
const int w_ascii = cpp_display_width ("GCC", 3);
ASSERT_EQ (3, w_ascii);
const int w_mixed = cpp_display_width ("\xcf\x80 = 3.14 \xf0\x9f\x98\x82"
"\x9f! \xe4\xb8\xba y\xcc\x88", 24);
ASSERT_EQ (18, w_mixed);
}
/* Verify that cpp_byte_column_to_display_column can go past the end,
and similar edge cases. */
{
const char *str
/* Display columns.
111111112345 */
= "\xcf\x80 abc";
/* 111122223456
Byte columns. */
ASSERT_EQ (5, cpp_display_width (str, 6));
ASSERT_EQ (105, cpp_byte_column_to_display_column (str, 6, 106));
ASSERT_EQ (10000, cpp_byte_column_to_display_column (NULL, 0, 10000));
ASSERT_EQ (0, cpp_byte_column_to_display_column (NULL, 10000, 0));
}
/* Verify that cpp_display_column_to_byte_column can go past the end,
and similar edge cases, and check invertibility. */
{
const char *str
/* Display columns.
000000000000000000000000000000000000011
111111112222222234444444455555555678901 */
= "\xf0\x9f\x98\x82 \xf0\x9f\x98\x82 hello";
/* 000000000000000000000000000000000111111
111122223333444456666777788889999012345
Byte columns. */
ASSERT_EQ (4, cpp_display_column_to_byte_column (str, 15, 2));
ASSERT_EQ (15, cpp_display_column_to_byte_column (str, 15, 11));
ASSERT_EQ (115, cpp_display_column_to_byte_column (str, 15, 111));
ASSERT_EQ (10000, cpp_display_column_to_byte_column (NULL, 0, 10000));
ASSERT_EQ (0, cpp_display_column_to_byte_column (NULL, 10000, 0));
/* Verify that we do not interrupt a UTF-8 sequence. */
ASSERT_EQ (4, cpp_display_column_to_byte_column (str, 15, 1));
for (int byte_col = 1; byte_col <= 15; ++byte_col)
{
const int disp_col = cpp_byte_column_to_display_column (str, 15,
byte_col);
const int byte_col2 = cpp_display_column_to_byte_column (str, 15,
disp_col);
/* If we ask for the display column in the middle of a UTF-8
sequence, it will return the length of the partial sequence,
matching the behavior of GCC before display column support.
Otherwise check the round trip was successful. */
if (byte_col < 4)
ASSERT_EQ (byte_col, disp_col);
else if (byte_col >= 6 && byte_col < 9)
ASSERT_EQ (3 + (byte_col - 5), disp_col);
else
ASSERT_EQ (byte_col2, byte_col);
}
}
}
/* Run all of the selftests within this file. */
void
@ -3631,6 +3734,8 @@ input_c_tests ()
test_reading_source_line ();
test_line_offset_overflow ();
test_cpp_utf8 ();
}
} // namespace selftest

1
gcc/input.h
View File

@ -38,6 +38,7 @@ STATIC_ASSERT (BUILTINS_LOCATION < RESERVED_LOCATION_COUNT);
extern bool is_location_from_builtin_token (location_t);
extern expanded_location expand_location (location_t);
extern int location_compute_display_column (expanded_location);
/* A class capturing the bounds of a buffer, to allow for run-time
bounds-checking in a checked build. */

8
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,11 @@
2019-12-09 Lewis Hyatt <lhyatt@gmail.com>
PR preprocessor/49973
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
(test_show_locus): Tweak so that expected output is the same as
before the diagnostic-show-locus.c changes.
* gcc.dg/cpp/pr66415-1.c: Likewise.
2019-12-09 Eric Botcazou <ebotcazou@adacore.com>
* gnat.dg/lto23.adb: New test.

2
gcc/testsuite/gcc.dg/cpp/pr66415-1.c
View File

@ -1,7 +1,7 @@
/* PR c/66415 */
/* { dg-do compile } */
/* { dg-options "-Wformat -fdiagnostics-show-caret" } */
/* { dg-set-compiler-env-var COLUMNS "82" } */
/* { dg-set-compiler-env-var COLUMNS "83" } */
void
fn1 (void)

2
gcc/testsuite/gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
View File

@ -174,7 +174,7 @@ test_show_locus (function *fun)
/* Hardcode the "terminal width", to verify the behavior of
very wide lines. */
global_dc->caret_max_width = 70;
global_dc->caret_max_width = 71;
if (0 == strcmp (fnname, "test_simple"))
{

15
libcpp/ChangeLog
View File

@ -1,3 +1,18 @@
2019-12-09 Lewis Hyatt <lhyatt@gmail.com>
PR preprocessor/49973
* generated_cpp_wcwidth.h: New file generated by
../contrib/unicode/gen_wcwidth.py, supports new cpp_wcwidth function.
* charset.c (compute_next_display_width): New function to help
implement display columns.
(cpp_byte_column_to_display_column): Likewise.
(cpp_display_column_to_byte_column): Likewise.
(cpp_wcwidth): Likewise.
* include/cpplib.h (cpp_byte_column_to_display_column): Declare.
(cpp_display_column_to_byte_column): Declare.
(cpp_wcwidth): Declare.
(cpp_display_width): New function.
2019-11-14 Joseph Myers <joseph@codesourcery.com>
* charset.c (narrow_str_to_charconst): Make CPP_UTF8CHAR constants

103
libcpp/charset.c
View File

@ -2265,3 +2265,106 @@ cpp_string_location_reader::get_next ()
m_loc += m_offset_per_column;
return result;
}
/* Helper for cpp_byte_column_to_display_column and its inverse. Given a
pointer to a UTF-8-encoded character, compute its display width. *INBUFP
points on entry to the start of the UTF-8 encoding of the character, and
is updated to point just after the last byte of the encoding. *INBYTESLEFTP
contains on entry the remaining size of the buffer into which *INBUFP
points, and this is also updated accordingly. If *INBUFP does not
point to a valid UTF-8-encoded sequence, then it will be treated as a single
byte with display width 1. */
static inline int
compute_next_display_width (const uchar **inbufp, size_t *inbytesleftp)
{
cppchar_t c;
if (one_utf8_to_cppchar (inbufp, inbytesleftp, &c) != 0)
{
/* Input is not convertible to UTF-8. This could be fine, e.g. in a
string literal, so don't complain. Just treat it as if it has a width
of one. */
++*inbufp;
--*inbytesleftp;
return 1;
}
/* one_utf8_to_cppchar() has updated inbufp and inbytesleftp for us. */
return cpp_wcwidth (c);
}
/* For the string of length DATA_LENGTH bytes that begins at DATA, compute
how many display columns are occupied by the first COLUMN bytes. COLUMN
may exceed DATA_LENGTH, in which case the phantom bytes at the end are
treated as if they have display width 1. */
int
cpp_byte_column_to_display_column (const char *data, int data_length,
int column)
{
int display_col = 0;
const uchar *udata = (const uchar *) data;
const int offset = MAX (0, column - data_length);
size_t inbytesleft = column - offset;
while (inbytesleft)
display_col += compute_next_display_width (&udata, &inbytesleft);
return display_col + offset;
}
/* For the string of length DATA_LENGTH bytes that begins at DATA, compute
the least number of bytes that will result in at least DISPLAY_COL display
columns. The return value may exceed DATA_LENGTH if the entire string does
not occupy enough display columns. */
int
cpp_display_column_to_byte_column (const char *data, int data_length,
int display_col)
{
int column = 0;
const uchar *udata = (const uchar *) data;
size_t inbytesleft = data_length;
while (column < display_col && inbytesleft)
column += compute_next_display_width (&udata, &inbytesleft);
return data_length - inbytesleft + MAX (0, display_col - column);
}
/* Our own version of wcwidth(). We don't use the actual wcwidth() in glibc,
because that will inspect the user's locale, and in particular in an ASCII
locale, it will not return anything useful for extended characters. But GCC
in other respects (see e.g. _cpp_default_encoding()) behaves as if
everything is UTF-8. We also make some tweaks that are useful for the way
GCC needs to use this data, e.g. tabs and other control characters should be
treated as having width 1. The lookup tables are generated from
contrib/unicode/gen_wcwidth.py and were made by simply calling glibc
wcwidth() on all codepoints, then applying the small tweaks. These tables
are not highly optimized, but for the present purpose of outputting
diagnostics, they are sufficient. */
#include "generated_cpp_wcwidth.h"
int cpp_wcwidth (cppchar_t c)
{
if (__builtin_expect (c <= wcwidth_range_ends[0], true))
return wcwidth_widths[0];
/* Binary search the tables. */
int begin = 1;
static const int end
= sizeof wcwidth_range_ends / sizeof (*wcwidth_range_ends);
int len = end - begin;
do
{
int half = len/2;
int middle = begin + half;
if (c > wcwidth_range_ends[middle])
{
begin = middle + 1;
len -= half + 1;
}
else
len = half;
} while (len);
if (__builtin_expect (begin != end, true))
return wcwidth_widths[begin];
return 1;
}

156
libcpp/generated_cpp_wcwidth.h Normal file
View File

@ -0,0 +1,156 @@
/* Generated by contrib/unicode/gen_wcwidth.py, with the help of glibc's
utf8_gen.py, using version 12.1.0 of the Unicode standard. */
static const cppchar_t wcwidth_range_ends[] = {
0x2ff, 0x36f, 0x482, 0x489, 0x590, 0x5bd, 0x5be, 0x5bf,
0x5c0, 0x5c2, 0x5c3, 0x5c5, 0x5c6, 0x5c7, 0x60f, 0x61a,
0x61b, 0x61c, 0x64a, 0x65f, 0x66f, 0x670, 0x6d5, 0x6dc,
0x6de, 0x6e4, 0x6e6, 0x6e8, 0x6e9, 0x6ed, 0x710, 0x711,
0x72f, 0x74a, 0x7a5, 0x7b0, 0x7ea, 0x7f3, 0x7fc, 0x7fd,
0x815, 0x819, 0x81a, 0x823, 0x824, 0x827, 0x828, 0x82d,
0x858, 0x85b, 0x8d2, 0x8e1, 0x8e2, 0x902, 0x939, 0x93a,
0x93b, 0x93c, 0x940, 0x948, 0x94c, 0x94d, 0x950, 0x957,
0x961, 0x963, 0x980, 0x981, 0x9bb, 0x9bc, 0x9c0, 0x9c4,
0x9cc, 0x9cd, 0x9e1, 0x9e3, 0x9fd, 0x9fe, 0xa00, 0xa02,
0xa3b, 0xa3c, 0xa40, 0xa42, 0xa46, 0xa48, 0xa4a, 0xa4d,
0xa50, 0xa51, 0xa6f, 0xa71, 0xa74, 0xa75, 0xa80, 0xa82,
0xabb, 0xabc, 0xac0, 0xac5, 0xac6, 0xac8, 0xacc, 0xacd,
0xae1, 0xae3, 0xaf9, 0xaff, 0xb00, 0xb01, 0xb3b, 0xb3c,
0xb3e, 0xb3f, 0xb40, 0xb44, 0xb4c, 0xb4d, 0xb55, 0xb56,
0xb61, 0xb63, 0xb81, 0xb82, 0xbbf, 0xbc0, 0xbcc, 0xbcd,
0xbff, 0xc00, 0xc03, 0xc04, 0xc3d, 0xc40, 0xc45, 0xc48,
0xc49, 0xc4d, 0xc54, 0xc56, 0xc61, 0xc63, 0xc80, 0xc81,
0xcbb, 0xcbc, 0xcbe, 0xcbf, 0xcc5, 0xcc6, 0xccb, 0xccd,
0xce1, 0xce3, 0xcff, 0xd01, 0xd3a, 0xd3c, 0xd40, 0xd44,
0xd4c, 0xd4d, 0xd61, 0xd63, 0xdc9, 0xdca, 0xdd1, 0xdd4,
0xdd5, 0xdd6, 0xe30, 0xe31, 0xe33, 0xe3a, 0xe46, 0xe4e,
0xeb0, 0xeb1, 0xeb3, 0xebc, 0xec7, 0xecd, 0xf17, 0xf19,
0xf34, 0xf35, 0xf36, 0xf37, 0xf38, 0xf39, 0xf70, 0xf7e,
0xf7f, 0xf84, 0xf85, 0xf87, 0xf8c, 0xf97, 0xf98, 0xfbc,
0xfc5, 0xfc6, 0x102c, 0x1030, 0x1031, 0x1037, 0x1038, 0x103a,
0x103c, 0x103e, 0x1057, 0x1059, 0x105d, 0x1060, 0x1070, 0x1074,
0x1081, 0x1082, 0x1084, 0x1086, 0x108c, 0x108d, 0x109c, 0x109d,
0x10ff, 0x115f, 0x11ff, 0x135c, 0x135f, 0x1711, 0x1714, 0x1731,
0x1734, 0x1751, 0x1753, 0x1771, 0x1773, 0x17b3, 0x17b5, 0x17b6,
0x17bd, 0x17c5, 0x17c6, 0x17c8, 0x17d3, 0x17dc, 0x17dd, 0x180a,
0x180e, 0x1884, 0x1886, 0x18a8, 0x18a9, 0x191f, 0x1922, 0x1926,
0x1928, 0x1931, 0x1932, 0x1938, 0x193b, 0x1a16, 0x1a18, 0x1a1a,
0x1a1b, 0x1a55, 0x1a56, 0x1a57, 0x1a5e, 0x1a5f, 0x1a60, 0x1a61,
0x1a62, 0x1a64, 0x1a6c, 0x1a72, 0x1a7c, 0x1a7e, 0x1a7f, 0x1aaf,
0x1abe, 0x1aff, 0x1b03, 0x1b33, 0x1b34, 0x1b35, 0x1b3a, 0x1b3b,
0x1b3c, 0x1b41, 0x1b42, 0x1b6a, 0x1b73, 0x1b7f, 0x1b81, 0x1ba1,
0x1ba5, 0x1ba7, 0x1ba9, 0x1baa, 0x1bad, 0x1be5, 0x1be6, 0x1be7,
0x1be9, 0x1bec, 0x1bed, 0x1bee, 0x1bf1, 0x1c2b, 0x1c33, 0x1c35,
0x1c37, 0x1ccf, 0x1cd2, 0x1cd3, 0x1ce0, 0x1ce1, 0x1ce8, 0x1cec,
0x1ced, 0x1cf3, 0x1cf4, 0x1cf7, 0x1cf9, 0x1dbf, 0x1df9, 0x1dfa,
0x1dff, 0x200a, 0x200f, 0x2029, 0x202e, 0x205f, 0x2064, 0x2065,
0x206f, 0x20cf, 0x20f0, 0x2319, 0x231b, 0x2328, 0x232a, 0x23e8,
0x23ec, 0x23ef, 0x23f0, 0x23f2, 0x23f3, 0x25fc, 0x25fe, 0x2613,
0x2615, 0x2647, 0x2653, 0x267e, 0x267f, 0x2692, 0x2693, 0x26a0,
0x26a1, 0x26a9, 0x26ab, 0x26bc, 0x26be, 0x26c3, 0x26c5, 0x26cd,
0x26ce, 0x26d3, 0x26d4, 0x26e9, 0x26ea, 0x26f1, 0x26f3, 0x26f4,
0x26f5, 0x26f9, 0x26fa, 0x26fc, 0x26fd, 0x2704, 0x2705, 0x2709,
0x270b, 0x2727, 0x2728, 0x274b, 0x274c, 0x274d, 0x274e, 0x2752,
0x2755, 0x2756, 0x2757, 0x2794, 0x2797, 0x27af, 0x27b0, 0x27be,
0x27bf, 0x2b1a, 0x2b1c, 0x2b4f, 0x2b50, 0x2b54, 0x2b55, 0x2cee,
0x2cf1, 0x2d7e, 0x2d7f, 0x2ddf, 0x2dff, 0x2e7f, 0x2e99, 0x2e9a,
0x2ef3, 0x2eff, 0x2fd5, 0x2fef, 0x2ffb, 0x2fff, 0x3029, 0x302d,
0x303e, 0x3040, 0x3096, 0x3098, 0x309a, 0x30ff, 0x3104, 0x312f,
0x3130, 0x318e, 0x318f, 0x31ba, 0x31bf, 0x31e3, 0x31ef, 0x321e,
0x321f, 0x4db5, 0x4dbf, 0x9fef, 0x9fff, 0xa48c, 0xa48f, 0xa4c6,
0xa66e, 0xa672, 0xa673, 0xa67d, 0xa69d, 0xa69f, 0xa6ef, 0xa6f1,
0xa801, 0xa802, 0xa805, 0xa806, 0xa80a, 0xa80b, 0xa824, 0xa826,
0xa8c3, 0xa8c5, 0xa8df, 0xa8f1, 0xa8fe, 0xa8ff, 0xa925, 0xa92d,
0xa946, 0xa951, 0xa95f, 0xa97c, 0xa97f, 0xa982, 0xa9b2, 0xa9b3,
0xa9b5, 0xa9b9, 0xa9bb, 0xa9bd, 0xa9e4, 0xa9e5, 0xaa28, 0xaa2e,
0xaa30, 0xaa32, 0xaa34, 0xaa36, 0xaa42, 0xaa43, 0xaa4b, 0xaa4c,
0xaa7b, 0xaa7c, 0xaaaf, 0xaab0, 0xaab1, 0xaab4, 0xaab6, 0xaab8,
0xaabd, 0xaabf, 0xaac0, 0xaac1, 0xaaeb, 0xaaed, 0xaaf5, 0xaaf6,
0xabe4, 0xabe5, 0xabe7, 0xabe8, 0xabec, 0xabed, 0xabff, 0xd7a3,
0xf8ff, 0xfa6d, 0xfa6f, 0xfad9, 0xfb1d, 0xfb1e, 0xfdff, 0xfe0f,
0xfe19, 0xfe1f, 0xfe2f, 0xfe52, 0xfe53, 0xfe66, 0xfe67, 0xfe6b,
0xfefe, 0xfeff, 0xff00, 0xff60, 0xffdf, 0xffe6, 0xfff8, 0xfffb,
0x101fc, 0x101fd, 0x102df, 0x102e0, 0x10375, 0x1037a, 0x10a00, 0x10a03,
0x10a04, 0x10a06, 0x10a0b, 0x10a0f, 0x10a37, 0x10a3a, 0x10a3e, 0x10a3f,
0x10ae4, 0x10ae6, 0x10d23, 0x10d27, 0x10f45, 0x10f50, 0x11000, 0x11001,
0x11037, 0x11046, 0x1107e, 0x11081, 0x110b2, 0x110b6, 0x110b8, 0x110ba,
0x110ff, 0x11102, 0x11126, 0x1112b, 0x1112c, 0x11134, 0x11172, 0x11173,
0x1117f, 0x11181, 0x111b5, 0x111be, 0x111c8, 0x111cc, 0x1122e, 0x11231,
0x11233, 0x11234, 0x11235, 0x11237, 0x1123d, 0x1123e, 0x112de, 0x112df,
0x112e2, 0x112ea, 0x112ff, 0x11301, 0x1133a, 0x1133c, 0x1133f, 0x11340,
0x11365, 0x1136c, 0x1136f, 0x11374, 0x11437, 0x1143f, 0x11441, 0x11444,
0x11445, 0x11446, 0x1145d, 0x1145e, 0x114b2, 0x114b8, 0x114b9, 0x114ba,
0x114be, 0x114c0, 0x114c1, 0x114c3, 0x115b1, 0x115b5, 0x115bb, 0x115bd,
0x115be, 0x115c0, 0x115db, 0x115dd, 0x11632, 0x1163a, 0x1163c, 0x1163d,
0x1163e, 0x11640, 0x116aa, 0x116ab, 0x116ac, 0x116ad, 0x116af, 0x116b5,
0x116b6, 0x116b7, 0x1171c, 0x1171f, 0x11721, 0x11725, 0x11726, 0x1172b,
0x1182e, 0x11837, 0x11838, 0x1183a, 0x119d3, 0x119d7, 0x119d9, 0x119db,
0x119df, 0x119e0, 0x11a00, 0x11a0a, 0x11a32, 0x11a38, 0x11a3a, 0x11a3e,
0x11a46, 0x11a47, 0x11a50, 0x11a56, 0x11a58, 0x11a5b, 0x11a89, 0x11a96,
0x11a97, 0x11a99, 0x11c2f, 0x11c36, 0x11c37, 0x11c3d, 0x11c3e, 0x11c3f,
0x11c91, 0x11ca7, 0x11ca9, 0x11cb0, 0x11cb1, 0x11cb3, 0x11cb4, 0x11cb6,
0x11d30, 0x11d36, 0x11d39, 0x11d3a, 0x11d3b, 0x11d3d, 0x11d3e, 0x11d45,
0x11d46, 0x11d47, 0x11d8f, 0x11d91, 0x11d94, 0x11d95, 0x11d96, 0x11d97,
0x11ef2, 0x11ef4, 0x1342f, 0x13438, 0x16aef, 0x16af4, 0x16b2f, 0x16b36,
0x16f4e, 0x16f4f, 0x16f8e, 0x16f92, 0x16fdf, 0x16fe3, 0x16fff, 0x187f7,
0x187ff, 0x18af2, 0x1afff, 0x1b11e, 0x1b14f, 0x1b152, 0x1b163, 0x1b167,
0x1b16f, 0x1b2fb, 0x1bc9c, 0x1bc9e, 0x1bc9f, 0x1bca3, 0x1d166, 0x1d169,
0x1d172, 0x1d182, 0x1d184, 0x1d18b, 0x1d1a9, 0x1d1ad, 0x1d241, 0x1d244,
0x1d9ff, 0x1da36, 0x1da3a, 0x1da6c, 0x1da74, 0x1da75, 0x1da83, 0x1da84,
0x1da9a, 0x1da9f, 0x1daa0, 0x1daaf, 0x1dfff, 0x1e006, 0x1e007, 0x1e018,
0x1e01a, 0x1e021, 0x1e022, 0x1e024, 0x1e025, 0x1e02a, 0x1e12f, 0x1e136,
0x1e2eb, 0x1e2ef, 0x1e8cf, 0x1e8d6, 0x1e943, 0x1e94a, 0x1f003, 0x1f004,
0x1f0ce, 0x1f0cf, 0x1f18d, 0x1f18e, 0x1f190, 0x1f19a, 0x1f1ff, 0x1f202,
0x1f20f, 0x1f23b, 0x1f23f, 0x1f248, 0x1f24f, 0x1f251, 0x1f25f, 0x1f265,
0x1f2ff, 0x1f320, 0x1f32c, 0x1f335, 0x1f336, 0x1f37c, 0x1f37d, 0x1f393,
0x1f39f, 0x1f3ca, 0x1f3ce, 0x1f3d3, 0x1f3df, 0x1f3f0, 0x1f3f3, 0x1f3f4,
0x1f3f7, 0x1f43e, 0x1f43f, 0x1f440, 0x1f441, 0x1f4fc, 0x1f4fe, 0x1f53d,
0x1f54a, 0x1f54e, 0x1f54f, 0x1f567, 0x1f579, 0x1f57a, 0x1f594, 0x1f596,
0x1f5a3, 0x1f5a4, 0x1f5fa, 0x1f64f, 0x1f67f, 0x1f6c5, 0x1f6cb, 0x1f6cc,
0x1f6cf, 0x1f6d2, 0x1f6d4, 0x1f6d5, 0x1f6ea, 0x1f6ec, 0x1f6f3, 0x1f6fa,
0x1f7df, 0x1f7eb, 0x1f90c, 0x1f971, 0x1f972, 0x1f976, 0x1f979, 0x1f9a2,
0x1f9a4, 0x1f9aa, 0x1f9ad, 0x1f9ca, 0x1f9cc, 0x1f9ff, 0x1fa6f, 0x1fa73,
0x1fa77, 0x1fa7a, 0x1fa7f, 0x1fa82, 0x1fa8f, 0x1fa95, 0x1ffff, 0x2a6d6,
0x2a6ff, 0x2b734, 0x2b73f, 0x2b81d, 0x2b81f, 0x2cea1, 0x2ceaf, 0x2ebe0,
0x2f7ff, 0x2fa1d, 0xe0000, 0xe0001, 0xe001f, 0xe007f, 0xe00ff, 0xe01ef,
};
static const unsigned char wcwidth_widths[] = {
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1,
0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1,
0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1,
0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1,
0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1,
0, 1, 0, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1,
2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1,
2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1,
0, 1, 0, 1, 0, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 0, 2, 1, 2, 1, 0, 2, 1, 2,
1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2, 1, 2, 1, 0, 1, 0,
2, 1, 0, 2, 1, 2, 1, 2, 1, 0, 1, 2, 1, 2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2,
1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2,
1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2,
1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2,
1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 0, 1, 0, 1, 0,
};

11
libcpp/include/cpplib.h
View File

@ -1320,4 +1320,15 @@ extern bool cpp_userdef_char_p
extern const char * cpp_get_userdef_suffix
(const cpp_token *);
/* In charset.c */
int cpp_byte_column_to_display_column (const char *data, int data_length,
int column);
inline int cpp_display_width (const char *data, int data_length)
{
return cpp_byte_column_to_display_column (data, data_length, data_length);
}
int cpp_display_column_to_byte_column (const char *data, int data_length,
int display_col);
int cpp_wcwidth (cppchar_t c);
#endif /* ! LIBCPP_CPPLIB_H */