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Refactor Python scripts for generating Unicode property data

This commit is contained in:
Philip Hazel 2021-12-26 17:49:58 +00:00
parent 321b559ed4
commit 98e7d70bc6
15 changed files with 1656 additions and 1289 deletions
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ChangeLog
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@ -58,6 +58,11 @@ of applications treat NULL/0 in this way.
the same as \p{scx:scriptname} because this change happened in Perl at
release 5.26.
18. The Python scripts in the maint directory have been refactored. There are
now three scripts that generate pcre2_ucd.c, pcre2_ucp.h, and pcre2_ucptables.c
(which is #included by pcre2_tables.c). The data lists that used to be
duplicated are now held in a single common Python module.
Version 10.39 29-October-2021
-----------------------------

278
maint/GenerateCommon.py Normal file
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@ -0,0 +1,278 @@
#! /usr/bin/python
# PCRE2 UNICODE PROPERTY SUPPORT
# ------------------------------
# This file is a Python module containing common lists and functions for the
# GenerateXXX scripts that create various.c and .h files from Unicode data
# files. It was created as part of a re-organizaton of these scripts in
# December 2021.
# ---------------------------------------------------------------------------
# DATA LISTS
# ---------------------------------------------------------------------------
# The lists of script names and script abbreviations must be kept in step. Note
# that the pcre2pattern and pcre2syntax documentation has lists of scripts.
script_names = ['Unknown', 'Arabic', 'Armenian', 'Bengali', 'Bopomofo', 'Braille', 'Buginese', 'Buhid', 'Canadian_Aboriginal', \
'Cherokee', 'Common', 'Coptic', 'Cypriot', 'Cyrillic', 'Deseret', 'Devanagari', 'Ethiopic', 'Georgian', \
'Glagolitic', 'Gothic', 'Greek', 'Gujarati', 'Gurmukhi', 'Han', 'Hangul', 'Hanunoo', 'Hebrew', 'Hiragana', \
'Inherited', 'Kannada', 'Katakana', 'Kharoshthi', 'Khmer', 'Lao', 'Latin', 'Limbu', 'Linear_B', 'Malayalam', \
'Mongolian', 'Myanmar', 'New_Tai_Lue', 'Ogham', 'Old_Italic', 'Old_Persian', 'Oriya', 'Osmanya', 'Runic', \
'Shavian', 'Sinhala', 'Syloti_Nagri', 'Syriac', 'Tagalog', 'Tagbanwa', 'Tai_Le', 'Tamil', 'Telugu', 'Thaana', \
'Thai', 'Tibetan', 'Tifinagh', 'Ugaritic', 'Yi', \
# New for Unicode 5.0
'Balinese', 'Cuneiform', 'Nko', 'Phags_Pa', 'Phoenician', \
# New for Unicode 5.1
'Carian', 'Cham', 'Kayah_Li', 'Lepcha', 'Lycian', 'Lydian', 'Ol_Chiki', 'Rejang', 'Saurashtra', 'Sundanese', 'Vai', \
# New for Unicode 5.2
'Avestan', 'Bamum', 'Egyptian_Hieroglyphs', 'Imperial_Aramaic', \
'Inscriptional_Pahlavi', 'Inscriptional_Parthian', \
'Javanese', 'Kaithi', 'Lisu', 'Meetei_Mayek', \
'Old_South_Arabian', 'Old_Turkic', 'Samaritan', 'Tai_Tham', 'Tai_Viet', \
# New for Unicode 6.0.0
'Batak', 'Brahmi', 'Mandaic', \
# New for Unicode 6.1.0
'Chakma', 'Meroitic_Cursive', 'Meroitic_Hieroglyphs', 'Miao', 'Sharada', 'Sora_Sompeng', 'Takri',
# New for Unicode 7.0.0
'Bassa_Vah', 'Caucasian_Albanian', 'Duployan', 'Elbasan', 'Grantha', 'Khojki', 'Khudawadi',
'Linear_A', 'Mahajani', 'Manichaean', 'Mende_Kikakui', 'Modi', 'Mro', 'Nabataean',
'Old_North_Arabian', 'Old_Permic', 'Pahawh_Hmong', 'Palmyrene', 'Psalter_Pahlavi',
'Pau_Cin_Hau', 'Siddham', 'Tirhuta', 'Warang_Citi',
# New for Unicode 8.0.0
'Ahom', 'Anatolian_Hieroglyphs', 'Hatran', 'Multani', 'Old_Hungarian',
'SignWriting',
# New for Unicode 10.0.0
'Adlam', 'Bhaiksuki', 'Marchen', 'Newa', 'Osage', 'Tangut', 'Masaram_Gondi',
'Nushu', 'Soyombo', 'Zanabazar_Square',
# New for Unicode 11.0.0
'Dogra', 'Gunjala_Gondi', 'Hanifi_Rohingya', 'Makasar', 'Medefaidrin',
'Old_Sogdian', 'Sogdian',
# New for Unicode 12.0.0
'Elymaic', 'Nandinagari', 'Nyiakeng_Puachue_Hmong', 'Wancho',
# New for Unicode 13.0.0
'Chorasmian', 'Dives_Akuru', 'Khitan_Small_Script', 'Yezidi',
# New for Unicode 14.0.0
'Cypro_Minoan', 'Old_Uyghur', 'Tangsa', 'Toto', 'Vithkuqi'
]
script_abbrevs = [
'Zzzz', 'Arab', 'Armn', 'Beng', 'Bopo', 'Brai', 'Bugi', 'Buhd', 'Cans',
'Cher', 'Zyyy', 'Copt', 'Cprt', 'Cyrl', 'Dsrt', 'Deva', 'Ethi', 'Geor',
'Glag', 'Goth', 'Grek', 'Gujr', 'Guru', 'Hani', 'Hang', 'Hano', 'Hebr',
'Hira', 'Zinh', 'Knda', 'Kana', 'Khar', 'Khmr', 'Laoo', 'Latn', 'Limb',
'Linb', 'Mlym', 'Mong', 'Mymr', 'Talu', 'Ogam', 'Ital', 'Xpeo', 'Orya',
'Osma', 'Runr', 'Shaw', 'Sinh', 'Sylo', 'Syrc', 'Tglg', 'Tagb', 'Tale',
'Taml', 'Telu', 'Thaa', 'Thai', 'Tibt', 'Tfng', 'Ugar', 'Yiii',
#New for Unicode 5.0
'Bali', 'Xsux', 'Nkoo', 'Phag', 'Phnx',
#New for Unicode 5.1
'Cari', 'Cham', 'Kali', 'Lepc', 'Lyci', 'Lydi', 'Olck', 'Rjng', 'Saur',
'Sund', 'Vaii',
#New for Unicode 5.2
'Avst', 'Bamu', 'Egyp', 'Armi', 'Phli', 'Prti', 'Java', 'Kthi', 'Lisu',
'Mtei', 'Sarb', 'Orkh', 'Samr', 'Lana', 'Tavt',
#New for Unicode 6.0.0
'Batk', 'Brah', 'Mand',
#New for Unicode 6.1.0
'Cakm', 'Merc', 'Mero', 'Plrd', 'Shrd', 'Sora', 'Takr',
#New for Unicode 7.0.0
'Bass', 'Aghb', 'Dupl', 'Elba', 'Gran', 'Khoj', 'Sind', 'Lina', 'Mahj',
'Mani', 'Mend', 'Modi', 'Mroo', 'Nbat', 'Narb', 'Perm', 'Hmng', 'Palm',
'Phlp', 'Pauc', 'Sidd', 'Tirh', 'Wara',
#New for Unicode 8.0.0
'Ahom', 'Hluw', 'Hatr', 'Mult', 'Hung', 'Sgnw',
#New for Unicode 10.0.0
'Adlm', 'Bhks', 'Marc', 'Newa', 'Osge', 'Tang', 'Gonm', 'Nshu', 'Soyo',
'Zanb',
#New for Unicode 11.0.0
'Dogr', 'Gong', 'Rohg', 'Maka', 'Medf', 'Sogo', 'Sogd',
#New for Unicode 12.0.0
'Elym', 'Nand', 'Hmnp', 'Wcho',
#New for Unicode 13.0.0
'Chrs', 'Diak', 'Kits', 'Yezi',
#New for Unicode 14.0.0
'Cpmn', 'Ougr', 'Tngs', 'Toto', 'Vith'
]
# BIDI classes in the DerivedBidiClass.txt file, with comments.
bidi_classes = [
'AL', 'Arabic letter',
'AN', 'Arabic number',
'B', 'Paragraph separator',
'BN', 'Boundary neutral',
'CS', 'Common separator',
'EN', 'European number',
'ES', 'European separator',
'ET', 'European terminator',
'FSI', 'First strong isolate',
'L', 'Left to right',
'LRE', 'Left to right embedding',
'LRI', 'Left to right isolate',
'LRO', 'Left to right override',
'NSM', 'Non-spacing mark',
'ON', 'Other neutral',
'PDF', 'Pop directional format',
'PDI', 'Pop directional isolate',
'R', 'Right to left',
'RLE', 'Right to left embedding',
'RLI', 'Right to left isolate',
'RLO', 'Right to left override',
'S', 'Segment separator',
'WS', 'White space'
]
# Particular category property names, with comments. NOTE: If ever this list
# is changed, the table called "catposstab" in the pcre2_auto_possess.c file
# must be edited to keep in step.
category_names = [
'Cc', 'Control',
'Cf', 'Format',
'Cn', 'Unassigned',
'Co', 'Private use',
'Cs', 'Surrogate',
'Ll', 'Lower case letter',
'Lm', 'Modifier letter',
'Lo', 'Other letter',
'Lt', 'Title case letter',
'Lu', 'Upper case letter',
'Mc', 'Spacing mark',
'Me', 'Enclosing mark',
'Mn', 'Non-spacing mark',
'Nd', 'Decimal number',
'Nl', 'Letter number',
'No', 'Other number',
'Pc', 'Connector punctuation',
'Pd', 'Dash punctuation',
'Pe', 'Close punctuation',
'Pf', 'Final punctuation',
'Pi', 'Initial punctuation',
'Po', 'Other punctuation',
'Ps', 'Open punctuation',
'Sc', 'Currency symbol',
'Sk', 'Modifier symbol',
'Sm', 'Mathematical symbol',
'So', 'Other symbol',
'Zl', 'Line separator',
'Zp', 'Paragraph separator',
'Zs', 'Space separator'
]
# The Extended_Pictographic property is not found in the file where all the
# others are (GraphemeBreakProperty.txt). It comes from the emoji-data.txt
# file, but we list it here so that the name has the correct index value.
break_properties = [
'CR', ' 0',
'LF', ' 1',
'Control', ' 2',
'Extend', ' 3',
'Prepend', ' 4',
'SpacingMark', ' 5',
'L', ' 6 Hangul syllable type L',
'V', ' 7 Hangul syllable type V',
'T', ' 8 Hangul syllable type T',
'LV', ' 9 Hangul syllable type LV',
'LVT', '10 Hangul syllable type LVT',
'Regional_Indicator', '11',
'Other', '12',
'ZWJ', '13',
'Extended_Pictographic', '14'
]
# ---------------------------------------------------------------------------
# DERIVED LISTS
# ---------------------------------------------------------------------------
# Create general character property names from the first letters of the
# particular categories.
gcn_set = set(category_names[i][0] for i in range(0, len(category_names), 2))
general_category_names = list(gcn_set)
general_category_names.sort()
# ---------------------------------------------------------------------------
# FUNCTIONS
# ---------------------------------------------------------------------------
import sys
# Open an output file, using the command's argument or a default. Write common
# preliminary header information.
def open_output(default):
if len(sys.argv) > 2:
print('** Too many arguments: just give a file name')
sys.exit(1)
if len(sys.argv) == 2:
output_name = sys.argv[1]
else:
output_name = default
try:
file = open(output_name, "w")
except IOError:
print ("** Couldn't open %s" % output_name)
sys.exit(1)
script_name = sys.argv[0]
i = script_name.rfind('/')
if i >= 0:
script_name = script_name[i+1:]
file.write("""\
/*************************************************
* Perl-Compatible Regular Expressions *
*************************************************/
/* PCRE is a library of functions to support regular expressions whose syntax
and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel
Original API code Copyright (c) 1997-2012 University of Cambridge
New API code Copyright (c) 2016-2021 University of Cambridge
This module is auto-generated from Unicode data files. DO NOT EDIT MANUALLY!
""")
file.write("Instead, modify the maint/%s script and run it to generate\n"
"a new version of this code.\n\n" % script_name)
file.write("""\
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the University of Cambridge nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
-----------------------------------------------------------------------------
*/
\n""")
return file
# End of UcpCommon.py

857
maint/GenerateUcd.py Executable file
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@ -0,0 +1,857 @@
#! /usr/bin/python
# PCRE2 UNICODE PROPERTY SUPPORT
# ------------------------------
#
# This script generates the pcre2_ucd.c file from Unicode data files. This is
# the compressed Unicode property data used by PCRE2. The script was created in
# December 2021 as part of the Unicode data generation refactoring. It is
# basically a re-working of the MultiStage2.py script that was submitted to the
# PCRE project by Peter Kankowski in 2008 as part of a previous upgrading of
# Unicode property support. A number of extensions have since been added. The
# main difference in the 2021 upgrade (apart from comments and layout) is that
# the data tables (e.g. list of script names) are now held in a separate Python
# module that is shared with the other Generate scripts.
#
# This script must be run in the "maint" directory. It requires eight Unicode
# data tables: DerivedBidiClass.txt, DerivedGeneralCategory.txt,
# GraphemeBreakProperty.txt, PropList.txt, Scripts.txt, ScriptExtensions.txt,
# CaseFolding.txt, and emoji-data.txt. These must be in the Unicode.tables
# subdirectory.
#
# DerivedBidiClass.txt and DerivedGeneralCategory.txt are in the "extracted"
# subdirectory of the Unicode database (UCD) on the Unicode web site;
# GraphemeBreakProperty.txt is in the "auxiliary" subdirectory. PropList.txt,
# Scripts.txt, ScriptExtensions.txt, and CaseFolding.txt are directly in the
# UCD directory.
#
# The emoji-data.txt file is found in the "emoji" subdirectory even though it
# is technically part of a different (but coordinated) standard as shown
# in files associated with Unicode Technical Standard #51 ("Unicode Emoji"),
# for example:
#
# http://unicode.org/Public/emoji/13.0/ReadMe.txt
#
# -----------------------------------------------------------------------------
# Minor modifications made to the original script:
# Added #! line at start
# Removed tabs
# Made it work with Python 2.4 by rewriting two statements that needed 2.5
# Consequent code tidy
# Adjusted data file names to take from the Unicode.tables directory
# Adjusted global table names by prefixing _pcre_.
# Commented out stuff relating to the casefolding table, which isn't used;
# removed completely in 2012.
# Corrected size calculation
# Add #ifndef SUPPORT_UCP to use dummy tables when no UCP support is needed.
# Update for PCRE2: name changes, and SUPPORT_UCP is abolished.
#
# Major modifications made to the original script:
# Added code to add a grapheme break property field to records.
#
# Added code to search for sets of more than two characters that must match
# each other caselessly. A new table is output containing these sets, and
# offsets into the table are added to the main output records. This new
# code scans CaseFolding.txt instead of UnicodeData.txt, which is no longer
# used.
#
# Update for Python3:
# . Processed with 2to3, but that didn't fix everything
# . Changed string.strip to str.strip
# . Added encoding='utf-8' to the open() call
# . Inserted 'int' before blocksize/ELEMS_PER_LINE because an int is
# required and the result of the division is a float
#
# Added code to scan the emoji-data.txt file to find the Extended Pictographic
# property, which is used by PCRE2 as a grapheme breaking property. This was
# done when updating to Unicode 11.0.0 (July 2018).
#
# Added code to add a Script Extensions field to records. This has increased
# their size from 8 to 12 bytes, only 10 of which are currently used.
#
# Added code to add a bidi class field to records by scanning the
# DerivedBidiClass.txt and PropList.txt files. This uses one of the two spare
# bytes, so now 11 out of 12 are in use.
#
# 01-March-2010: Updated list of scripts for Unicode 5.2.0
# 30-April-2011: Updated list of scripts for Unicode 6.0.0
# July-2012: Updated list of scripts for Unicode 6.1.0
# 20-August-2012: Added scan of GraphemeBreakProperty.txt and added a new
# field in the record to hold the value. Luckily, the
# structure had a hole in it, so the resulting table is
# not much bigger than before.
# 18-September-2012: Added code for multiple caseless sets. This uses the
# final hole in the structure.
# 30-September-2012: Added RegionalIndicator break property from Unicode 6.2.0
# 13-May-2014: Updated for PCRE2
# 03-June-2014: Updated for Python 3
# 20-June-2014: Updated for Unicode 7.0.0
# 12-August-2014: Updated to put Unicode version into the file
# 19-June-2015: Updated for Unicode 8.0.0
# 02-July-2017: Updated for Unicode 10.0.0
# 03-July-2018: Updated for Unicode 11.0.0
# 07-July-2018: Added code to scan emoji-data.txt for the Extended
# Pictographic property.
# 01-October-2018: Added the 'Unknown' script name
# 03-October-2018: Added new field for Script Extensions
# 27-July-2019: Updated for Unicode 12.1.0
# 10-March-2020: Updated for Unicode 13.0.0
# PCRE2-10.39: Updated for Unicode 14.0.0
# 05-December-2021: Added code to scan DerivedBidiClass.txt for bidi class,
# and also PropList.txt for the Bidi_Control property
# 19-December-2021: Reworked script extensions lists to be bit maps instead
# of zero-terminated lists of script numbers.
# ----------------------------------------------------------------------------
#
# Changes to the refactored script:
#
# 26-December-2021: Refactoring completed
#
# ----------------------------------------------------------------------------
#
#
# The main tables generated by this script are used by macros defined in
# pcre2_internal.h. They look up Unicode character properties using short
# sequences of code that contains no branches, which makes for greater speed.
#
# Conceptually, there is a table of records (of type ucd_record), one for each
# Unicode character. Each record contains the script number, script extension
# value, character type, grapheme break type, offset to caseless matching set,
# offset to the character's other case, and the bidi class/control. However, a
# real table covering all Unicode characters would be far too big. It can be
# efficiently compressed by observing that many characters have the same
# record, and many blocks of characters (taking 128 characters in a block) have
# the same set of records as other blocks. This leads to a 2-stage lookup
# process.
#
# This script constructs six tables. The ucd_caseless_sets table contains
# lists of characters that all match each other caselessly. Each list is
# in order, and is terminated by NOTACHAR (0xffffffff), which is larger than
# any valid character. The first list is empty; this is used for characters
# that are not part of any list.
#
# The ucd_digit_sets table contains the code points of the '9' characters in
# each set of 10 decimal digits in Unicode. This is used to ensure that digits
# in script runs all come from the same set. The first element in the vector
# contains the number of subsequent elements, which are in ascending order.
#
# The ucd_script_sets vector contains bitmaps that represent lists of scripts
# for the Script Extensions properties of certain characters. Each bitmap
# consists of a fixed number of unsigned 32-bit numbers, enough to allocate
# a bit for every known script. A character with more than one script listed
# for its Script Extension property has a negative value in its record. This is
# the negated offset to the start of the relevant bitmap in the ucd_script_sets
# vector.
#
# The ucd_records table contains one instance of every unique record that is
# required. The ucd_stage1 table is indexed by a character's block number,
# which is the character's code point divided by 128, since 128 is the size
# of each block. The result of a lookup in ucd_stage1 a "virtual" block number.
#
# The ucd_stage2 table is a table of "virtual" blocks; each block is indexed by
# the offset of a character within its own block, and the result is the index
# number of the required record in the ucd_records vector.
#
# The following examples are correct for the Unicode 14.0.0 database. Future
# updates may make change the actual lookup values.
#
# Example: lowercase "a" (U+0061) is in block 0
# lookup 0 in stage1 table yields 0
# lookup 97 (0x61) in the first table in stage2 yields 22
# record 22 is { 34, 5, 12, 0, -32, 34, 2, 0 }
# 34 = ucp_Latin => Latin script
# 5 = ucp_Ll => Lower case letter
# 12 = ucp_gbOther => Grapheme break property "Other"
# 0 => Not part of a caseless set
# -32 (-0x20) => Other case is U+0041
# 34 = ucp_Latin => No special Script Extension property
# 2 = ucp_bidiL => Bidi class left-to-right
# 0 => Dummy value, unused at present
#
# Almost all lowercase latin characters resolve to the same record. One or two
# are different because they are part of a multi-character caseless set (for
# example, k, K and the Kelvin symbol are such a set).
#
# Example: hiragana letter A (U+3042) is in block 96 (0x60)
# lookup 96 in stage1 table yields 91
# lookup 66 (0x42) in table 91 in stage2 yields 613
# record 613 is { 27, 7, 12, 0, 0, 27, 2, 0 }
# 27 = ucp_Hiragana => Hiragana script
# 7 = ucp_Lo => Other letter
# 12 = ucp_gbOther => Grapheme break property "Other"
# 0 => Not part of a caseless set
# 0 => No other case
# 27 = ucp_Hiragana => No special Script Extension property
# 2 = ucp_bidiL => Bidi class left-to-right
# 0 => Dummy value, unused at present
#
# Example: vedic tone karshana (U+1CD0) is in block 57 (0x39)
# lookup 57 in stage1 table yields 55
# lookup 80 (0x50) in table 55 in stage2 yields 485
# record 485 is { 28, 12, 3, 0, 0, -122, 19, 0 }
# 28 = ucp_Inherited => Script inherited from predecessor
# 12 = ucp_Mn => Non-spacing mark
# 3 = ucp_gbExtend => Grapheme break property "Extend"
# 0 => Not part of a caseless set
# 0 => No other case
# -228 => Script Extension list offset = 228
# 13 = ucp_bidiNSM => Bidi class non-spacing mark
# 0 => Dummy value, unused at present
#
# At offset 228 in the ucd_script_sets vector we find a bitmap with bits 3, 15,
# 29, and 107 set. This means that this character is expected to be used with
# any of those scripts, which are Bengali, Devanagari, Kannada, and Grantha.
#
# Philip Hazel, last updated 19 December 2021.
##############################################################################
# Import standard modules
import re
import string
import sys
# Import common data lists and functions
from GenerateCommon import \
bidi_classes, \
break_properties, \
category_names, \
general_category_names, \
script_abbrevs, \
script_names, \
open_output
# Some general parameters
MAX_UNICODE = 0x110000
NOTACHAR = 0xffffffff
# ---------------------------------------------------------------------------
# DEFINE FUNCTIONS
# ---------------------------------------------------------------------------
# Parse a line of Scripts.txt, GraphemeBreakProperty.txt, DerivedBidiClass.txt
# or DerivedGeneralCategory.txt
def make_get_names(enum):
return lambda chardata: enum.index(chardata[1])
# Parse a line of CaseFolding.txt
def get_other_case(chardata):
if chardata[1] == 'C' or chardata[1] == 'S':
return int(chardata[2], 16) - int(chardata[0], 16)
return 0
# Parse a line of ScriptExtensions.txt
def get_script_extension(chardata):
this_script_list = list(chardata[1].split(' '))
if len(this_script_list) == 1:
return script_abbrevs.index(this_script_list[0])
script_numbers = []
for d in this_script_list:
script_numbers.append(script_abbrevs.index(d))
script_numbers.append(0)
script_numbers_length = len(script_numbers)
for i in range(1, len(script_lists) - script_numbers_length + 1):
for j in range(0, script_numbers_length):
found = True
if script_lists[i+j] != script_numbers[j]:
found = False
break
if found:
return -i
# Not found in existing lists
return_value = len(script_lists)
script_lists.extend(script_numbers)
return -return_value
# Read a whole table in memory, setting/checking the Unicode version
def read_table(file_name, get_value, default_value):
global unicode_version
f = re.match(r'^[^/]+/([^.]+)\.txt$', file_name)
file_base = f.group(1)
version_pat = r"^# " + re.escape(file_base) + r"-(\d+\.\d+\.\d+)\.txt$"
file = open(file_name, 'r', encoding='utf-8')
f = re.match(version_pat, file.readline())
version = f.group(1)
if unicode_version == "":
unicode_version = version
elif unicode_version != version:
print("WARNING: Unicode version differs in %s", file_name, file=sys.stderr)
table = [default_value] * MAX_UNICODE
for line in file:
line = re.sub(r'#.*', '', line)
chardata = list(map(str.strip, line.split(';')))
if len(chardata) <= 1:
continue
value = get_value(chardata)
m = re.match(r'([0-9a-fA-F]+)(\.\.([0-9a-fA-F]+))?$', chardata[0])
char = int(m.group(1), 16)
if m.group(3) is None:
last = char
else:
last = int(m.group(3), 16)
for i in range(char, last + 1):
# It is important not to overwrite a previously set value because in the
# CaseFolding file there are lines to be ignored (returning the default
# value of 0) which often come after a line which has already set data.
if table[i] == default_value:
table[i] = value
file.close()
return table
# Get the smallest possible C language type for the values in a table
def get_type_size(table):
type_size = [("uint8_t", 1), ("uint16_t", 2), ("uint32_t", 4),
("signed char", 1), ("int16_t", 2), ("int32_t", 4)]
limits = [(0, 255), (0, 65535), (0, 4294967295), (-128, 127),
(-32768, 32767), (-2147483648, 2147483647)]
minval = min(table)
maxval = max(table)
for num, (minlimit, maxlimit) in enumerate(limits):
if minlimit <= minval and maxval <= maxlimit:
return type_size[num]
raise OverflowError("Too large to fit into C types")
# Get the total size of a list of tables
def get_tables_size(*tables):
total_size = 0
for table in tables:
type, size = get_type_size(table)
total_size += size * len(table)
return total_size
# Compress a table into the two stages
def compress_table(table, block_size):
blocks = {} # Dictionary for finding identical blocks
stage1 = [] # Stage 1 table contains block numbers (indices into stage 2 table)
stage2 = [] # Stage 2 table contains the blocks with property values
table = tuple(table)
for i in range(0, len(table), block_size):
block = table[i:i+block_size]
start = blocks.get(block)
if start is None:
# Allocate a new block
start = len(stage2) / block_size
stage2 += block
blocks[block] = start
stage1.append(start)
return stage1, stage2
# Output a table
def write_table(table, table_name, block_size = None):
type, size = get_type_size(table)
ELEMS_PER_LINE = 16
s = "const %s %s[] = { /* %d bytes" % (type, table_name, size * len(table))
if block_size:
s += ", block = %d" % block_size
f.write(s + " */\n")
table = tuple(table)
if block_size is None:
fmt = "%3d," * ELEMS_PER_LINE + " /* U+%04X */\n"
mult = MAX_UNICODE / len(table)
for i in range(0, len(table), ELEMS_PER_LINE):
f.write(fmt % (table[i:i+ELEMS_PER_LINE] + (int(i * mult),)))
else:
if block_size > ELEMS_PER_LINE:
el = ELEMS_PER_LINE
else:
el = block_size
fmt = "%3d," * el + "\n"
if block_size > ELEMS_PER_LINE:
fmt = fmt * int(block_size / ELEMS_PER_LINE)
for i in range(0, len(table), block_size):
f.write(("\n/* block %d */\n" + fmt) % ((i / block_size,) + table[i:i+block_size]))
f.write("};\n\n")
# Extract the unique combinations of properties into records
def combine_tables(*tables):
records = {}
index = []
for t in zip(*tables):
i = records.get(t)
if i is None:
i = records[t] = len(records)
index.append(i)
return index, records
# Create a record struct
def get_record_size_struct(records):
size = 0
structure = 'typedef struct {\n'
for i in range(len(records[0])):
record_slice = [record[i] for record in records]
slice_type, slice_size = get_type_size(record_slice)
# add padding: round up to the nearest power of slice_size
size = (size + slice_size - 1) & -slice_size
size += slice_size
structure += '%s property_%d;\n' % (slice_type, i)
# round up to the first item of the next structure in array
record_slice = [record[0] for record in records]
slice_type, slice_size = get_type_size(record_slice)
size = (size + slice_size - 1) & -slice_size
structure += '} ucd_record;\n*/\n'
return size, structure
# Write records
def write_records(records, record_size):
f.write('const ucd_record PRIV(ucd_records)[] = { ' + \
'/* %d bytes, record size %d */\n' % (len(records) * record_size, record_size))
records = list(zip(list(records.keys()), list(records.values())))
records.sort(key = lambda x: x[1])
for i, record in enumerate(records):
f.write((' {' + '%6d, ' * len(record[0]) + '}, /* %3d */\n') % (record[0] + (i,)))
f.write('};\n\n')
# ---------------------------------------------------------------------------
# This bit of code must have been useful when the original script was being
# developed. Retain it just in case it is ever needed again.
# def test_record_size():
# tests = [ \
# ( [(3,), (6,), (6,), (1,)], 1 ), \
# ( [(300,), (600,), (600,), (100,)], 2 ), \
# ( [(25, 3), (6, 6), (34, 6), (68, 1)], 2 ), \
# ( [(300, 3), (6, 6), (340, 6), (690, 1)], 4 ), \
# ( [(3, 300), (6, 6), (6, 340), (1, 690)], 4 ), \
# ( [(300, 300), (6, 6), (6, 340), (1, 690)], 4 ), \
# ( [(3, 100000), (6, 6), (6, 123456), (1, 690)], 8 ), \
# ( [(100000, 300), (6, 6), (123456, 6), (1, 690)], 8 ), \
# ]
# for test in tests:
# size, struct = get_record_size_struct(test[0])
# assert(size == test[1])
# test_record_size()
# ---------------------------------------------------------------------------
# ---------------------------------------------------------------------------
# MAIN CODE FOR CREATING TABLES
# ---------------------------------------------------------------------------
unicode_version = ""
# Some of the tables imported from GenerateCommon.py have alternate comment
# strings for use by GenerateUcpHeader. The comments are now wanted here, so
# remove them.
bidi_classes = bidi_classes[::2]
break_properties = break_properties[::2]
category_names = category_names[::2]
# Create the various tables from Unicode data files
script = read_table('Unicode.tables/Scripts.txt', make_get_names(script_names), script_names.index('Unknown'))
category = read_table('Unicode.tables/DerivedGeneralCategory.txt', make_get_names(category_names), category_names.index('Cn'))
break_props = read_table('Unicode.tables/GraphemeBreakProperty.txt', make_get_names(break_properties), break_properties.index('Other'))
other_case = read_table('Unicode.tables/CaseFolding.txt', get_other_case, 0)
bidi_class = read_table('Unicode.tables/DerivedBidiClass.txt', make_get_names(bidi_classes), bidi_classes.index('L'))
# The Bidi_Control property is a Y/N value, so needs only one bit. We scan the
# PropList.txt file and set 0x80 bit in the bidi_class table.
file = open('Unicode.tables/PropList.txt', 'r', encoding='utf-8')
for line in file:
line = re.sub(r'#.*', '', line)
chardata = list(map(str.strip, line.split(';')))
if len(chardata) <= 1:
continue
if chardata[1] != "Bidi_Control":
continue
m = re.match(r'([0-9a-fA-F]+)(\.\.([0-9a-fA-F]+))?$', chardata[0])
char = int(m.group(1), 16)
if m.group(3) is None:
last = char
else:
last = int(m.group(3), 16)
for i in range(char, last + 1):
bidi_class[i] |= 0x80;
file.close()
# The grapheme breaking rules were changed for Unicode 11.0.0 (June 2018). Now
# we need to find the Extended_Pictographic property for emoji characters. This
# can be set as an additional grapheme break property, because the default for
# all the emojis is "other". We scan the emoji-data.txt file and modify the
# break-props table.
file = open('Unicode.tables/emoji-data.txt', 'r', encoding='utf-8')
for line in file:
line = re.sub(r'#.*', '', line)
chardata = list(map(str.strip, line.split(';')))
if len(chardata) <= 1:
continue
if chardata[1] != "Extended_Pictographic":
continue
m = re.match(r'([0-9a-fA-F]+)(\.\.([0-9a-fA-F]+))?$', chardata[0])
char = int(m.group(1), 16)
if m.group(3) is None:
last = char
else:
last = int(m.group(3), 16)
for i in range(char, last + 1):
if break_props[i] != break_properties.index('Other'):
print("WARNING: Emoji 0x%x has break property %s, not 'Other'",
i, break_properties[break_props[i]], file=sys.stderr)
break_props[i] = break_properties.index('Extended_Pictographic')
file.close()
# The Script Extensions property default value is the Script value. Parse the
# file, setting 'Unknown' as the default (this will never be a Script Extension
# value), then scan it and fill in the default from Scripts. Code added by PH
# in October 2018. Positive values are used for just a single script for a
# code point. Negative values are negated offsets in a list of bitsets of
# multiple scripts. Initialize this list with a single entry, as the zeroth
# element is never used.
script_lists = [0]
script_abbrevs_default = script_abbrevs.index('Zzzz')
scriptx = read_table('Unicode.tables/ScriptExtensions.txt', get_script_extension, script_abbrevs_default)
# Scan all characters and set their default script extension to the main
# script. We also have to adjust negative scriptx values, following a change in
# the way these work. They are currently negated offsets into the script_lists
# list, but have to be changed into indices in the new ucd_script_sets vector,
# which has fixed-size entries. We can compute the new offset by counting the
# zeros that precede the current offset.
for i in range(0, MAX_UNICODE):
if scriptx[i] == script_abbrevs_default:
scriptx[i] = script[i]
elif scriptx[i] < 0:
count = 1
for j in range(-scriptx[i], 0, -1):
if script_lists[j] == 0:
count += 1
scriptx[i] = -count * (int(len(script_names)/32) + 1)
# With the addition of the Script Extensions field, we needed some padding to
# get the Unicode records up to 12 bytes (multiple of 4). Originally this was a
# 16-bit field and padding_dummy[0] was set to 256 to ensure this, but 8 bits
# are now used for the bidi class, so zero will do.
padding_dummy = [0] * MAX_UNICODE
padding_dummy[0] = 0
# This block of code was added by PH in September 2012. It scans the other_case
# table to find sets of more than two characters that must all match each other
# caselessly. Later in this script a table of these sets is written out.
# However, we have to do this work here in order to compute the offsets in the
# table that are inserted into the main table.
# The CaseFolding.txt file lists pairs, but the common logic for reading data
# sets only one value, so first we go through the table and set "return"
# offsets for those that are not already set.
for c in range(MAX_UNICODE):
if other_case[c] != 0 and other_case[c + other_case[c]] == 0:
other_case[c + other_case[c]] = -other_case[c]
# Now scan again and create equivalence sets.
caseless_sets = []
for c in range(MAX_UNICODE):
o = c + other_case[c]
# Trigger when this character's other case does not point back here. We
# now have three characters that are case-equivalent.
if other_case[o] != -other_case[c]:
t = o + other_case[o]
# Scan the existing sets to see if any of the three characters are already
# part of a set. If so, unite the existing set with the new set.
appended = 0
for s in caseless_sets:
found = 0
for x in s:
if x == c or x == o or x == t:
found = 1
# Add new characters to an existing set
if found:
found = 0
for y in [c, o, t]:
for x in s:
if x == y:
found = 1
if not found:
s.append(y)
appended = 1
# If we have not added to an existing set, create a new one.
if not appended:
caseless_sets.append([c, o, t])
# End of loop looking for caseless sets.
# Now scan the sets and set appropriate offsets for the characters.
caseless_offsets = [0] * MAX_UNICODE
offset = 1;
for s in caseless_sets:
for x in s:
caseless_offsets[x] = offset
offset += len(s) + 1
# End of block of code for creating offsets for caseless matching sets.
# Combine all the tables
table, records = combine_tables(script, category, break_props,
caseless_offsets, other_case, scriptx, bidi_class, padding_dummy)
# Find the record size and create a string definition of the structure for
# outputting as a comment.
record_size, record_struct = get_record_size_struct(list(records.keys()))
# Find the optimum block size for the two-stage table
min_size = sys.maxsize
for block_size in [2 ** i for i in range(5,10)]:
size = len(records) * record_size
stage1, stage2 = compress_table(table, block_size)
size += get_tables_size(stage1, stage2)
#print "/* block size %5d => %5d bytes */" % (block_size, size)
if size < min_size:
min_size = size
min_stage1, min_stage2 = stage1, stage2
min_block_size = block_size
# ---------------------------------------------------------------------------
# MAIN CODE FOR WRITING THE OUTPUT FILE
# ---------------------------------------------------------------------------
# Open the output file (no return on failure). This call also writes standard
# header boilerplate.
f = open_output("pcre2_ucd.c")
# Output this file's heading text
f.write("""\
/* This file contains tables of Unicode properties that are extracted from
Unicode data files. See the comments at the start of maint/GenerateUcd.py for
details.
As well as being part of the PCRE2 library, this file is #included by the
pcre2test program, which redefines the PRIV macro to change table names from
_pcre2_xxx to xxxx, thereby avoiding name clashes with the library. At present,
just one of these tables is actually needed. When compiling the library, some
headers are needed. */
#ifndef PCRE2_PCRE2TEST
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "pcre2_internal.h"
#endif /* PCRE2_PCRE2TEST */
/* The tables herein are needed only when UCP support is built, and in PCRE2
that happens automatically with UTF support. This module should not be
referenced otherwise, so it should not matter whether it is compiled or not.
However a comment was received about space saving - maybe the guy linked all
the modules rather than using a library - so we include a condition to cut out
the tables when not needed. But don't leave a totally empty module because some
compilers barf at that. Instead, just supply some small dummy tables. */
#ifndef SUPPORT_UNICODE
const ucd_record PRIV(ucd_records)[] = {{0,0,0,0,0,0,0,0 }};
const uint16_t PRIV(ucd_stage1)[] = {0};
const uint16_t PRIV(ucd_stage2)[] = {0};
const uint32_t PRIV(ucd_caseless_sets)[] = {0};
#else
\n""")
# --- Output some variable heading stuff ---
f.write("/* Total size: %d bytes, block size: %d. */\n\n" % (min_size, min_block_size))
f.write('const char *PRIV(unicode_version) = "{}";\n\n'.format(unicode_version))
f.write("""\
/* When recompiling tables with a new Unicode version, please check the types
in this structure definition with those in pcre2_internal.h (the actual field
names will be different).
\n""")
f.write(record_struct)
f.write("""
/* If the 32-bit library is run in non-32-bit mode, character values greater
than 0x10ffff may be encountered. For these we set up a special record. */
#if PCRE2_CODE_UNIT_WIDTH == 32
const ucd_record PRIV(dummy_ucd_record)[] = {{
ucp_Unknown, /* script */
ucp_Cn, /* type unassigned */
ucp_gbOther, /* grapheme break property */
0, /* case set */
0, /* other case */
ucp_Unknown, /* script extension */
ucp_bidiL, /* bidi class */
0 /* dummy filler */
}};
#endif
\n""")
# --- Output the table of caseless character sets ---
f.write("""\
/* This table contains lists of characters that are caseless sets of
more than one character. Each list is terminated by NOTACHAR. */
const uint32_t PRIV(ucd_caseless_sets)[] = {
NOTACHAR,
""")
for s in caseless_sets:
s = sorted(s)
for x in s:
f.write(' 0x%04x,' % x)
f.write(' NOTACHAR,\n')
f.write('};\n\n')
# --- Other tables are not needed by pcre2test ---
f.write("""\
/* When #included in pcre2test, we don't need the table of digit sets, nor the
the large main UCD tables. */
#ifndef PCRE2_PCRE2TEST
\n""")
# --- Read Scripts.txt again for the sets of 10 digits. ---
digitsets = []
file = open('Unicode.tables/Scripts.txt', 'r', encoding='utf-8')
for line in file:
m = re.match(r'([0-9a-fA-F]+)\.\.([0-9a-fA-F]+)\s+;\s+\S+\s+#\s+Nd\s+', line)
if m is None:
continue
first = int(m.group(1),16)
last = int(m.group(2),16)
if ((last - first + 1) % 10) != 0:
f.write("ERROR: %04x..%04x does not contain a multiple of 10 characters" % (first, last),
file=sys.stderr)
while first < last:
digitsets.append(first + 9)
first += 10
file.close()
digitsets.sort()
f.write("""\
/* This table lists the code points for the '9' characters in each set of
decimal digits. It is used to ensure that all the digits in a script run come
from the same set. */
const uint32_t PRIV(ucd_digit_sets)[] = {
""")
f.write(" %d, /* Number of subsequent values */" % len(digitsets))
count = 8
for d in digitsets:
if count == 8:
f.write("\n ")
count = 0
f.write(" 0x%05x," % d)
count += 1
f.write("\n};\n\n")
f.write("""\
/* This vector is a list of script bitsets for the Script Extension property. */
const uint32_t PRIV(ucd_script_sets)[] = {
""")
bitword_count = len(script_names)/32 + 1
bitwords = [0] * int(bitword_count)
for d in script_lists:
if d == 0:
s = " "
f.write(" ")
for x in bitwords:
f.write("%s" % s)
s = ", "
f.write("0x%08xu" % x)
f.write(",\n")
bitwords = [0] * int(bitword_count)
else:
x = int(d/32)
y = int(d%32)
bitwords[x] = bitwords[x] | (1 << y)
f.write("};\n\n")
# Output the main UCD tables.
f.write("""\
/* These are the main two-stage UCD tables. The fields in each record are:
script (8 bits), character type (8 bits), grapheme break property (8 bits),
offset to multichar other cases or zero (8 bits), offset to other case or zero
(32 bits, signed), script extension (16 bits, signed), bidi class (8 bits), and
a dummy 8-bit field to make the whole thing a multiple of 4 bytes. */
\n""")
write_records(records, record_size)
write_table(min_stage1, 'PRIV(ucd_stage1)')
write_table(min_stage2, 'PRIV(ucd_stage2)', min_block_size)
f.write("#if UCD_BLOCK_SIZE != %d\n" % min_block_size)
f.write("""\
#error Please correct UCD_BLOCK_SIZE in pcre2_internal.h
#endif
#endif /* SUPPORT_UNICODE */
#endif /* PCRE2_PCRE2TEST */
/* End of pcre2_ucd.c */
""")
f.close
# End

80
maint/GenerateUcpHeader.py Executable file
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#! /usr/bin/python
# PCRE2 UNICODE PROPERTY SUPPORT
# ------------------------------
# This script generates the pcre2_ucp.h file from Unicode data files. This
# header uses enumerations to give names to Unicode property types and script
# names.
# This script was created in December 2021 as part of the Unicode data
# generation refactoring.
# Import common data lists and functions
from GenerateCommon import \
bidi_classes, \
break_properties, \
category_names, \
general_category_names, \
script_names, \
open_output
# Open the output file (no return on failure). This call also writes standard
# header boilerplate.
f = open_output("pcre2_ucp.h")
# Output this file's heading text
f.write("""\
#ifndef PCRE2_UCP_H_IDEMPOTENT_GUARD
#define PCRE2_UCP_H_IDEMPOTENT_GUARD
/* This file contains definitions of the Unicode property values that are
returned by the UCD access macros and used throughout PCRE2.
IMPORTANT: The specific values of the first two enums (general and particular
character categories) are assumed by the table called catposstab in the file
pcre2_auto_possess.c. They are unlikely to change, but should be checked after
an update. */
\n""")
f.write("/* These are the general character categories. */\n\nenum {\n")
for i in general_category_names:
f.write(" ucp_%s,\n" % i)
f.write("};\n\n")
f.write("/* These are the particular character categories. */\n\nenum {\n")
for i in range(0, len(category_names), 2):
f.write(" ucp_%s, /* %s */\n" % (category_names[i], category_names[i+1]))
f.write("};\n\n")
f.write("/* These are the bidi class values. */\n\nenum {\n")
for i in range(0, len(bidi_classes), 2):
sp = ' ' * (4 - len(bidi_classes[i]))
f.write(" ucp_bidi%s,%s /* %s */\n" % (bidi_classes[i], sp, bidi_classes[i+1]))
f.write("};\n\n")
f.write("/* These are grapheme break properties. The Extended Pictographic "
"property\ncomes from the emoji-data.txt file. */\n\nenum {\n")
for i in range(0, len(break_properties), 2):
sp = ' ' * (21 - len(break_properties[i]))
f.write(" ucp_gb%s,%s /* %s */\n" % (break_properties[i], sp, break_properties[i+1]))
f.write("};\n\n")
f.write("/* These are the script identifications, additions happen at the end. */\n\nenum {\n")
for i in script_names:
f.write(" ucp_%s,\n" % i)
f.write("\n")
f.write(" /* This must be last */\n")
f.write(" ucp_Script_Count\n};\n\n")
f.write("#endif /* PCRE2_UCP_H_IDEMPOTENT_GUARD */\n\n")
f.write("/* End of pcre2_ucp.h */\n")
f.close
# End

178
maint/GenerateUcpTables.py Executable file
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#! /usr/bin/python
# PCRE2 UNICODE PROPERTY SUPPORT
# ------------------------------
# This script generates the pcre2_ucptables.c file, which contains tables for
# recognizing Unicode property names. It is #included by pcre2_tables.c. In
# order to reduce the number of relocations when loading the PCRE2 library, the
# names are held as a single large string, with offsets in the table. This is
# tedious to maintain by hand. Therefore, a script is used to generate the
# table.
# This script was created in December 2021 based on the previous GenerateUtt
# script, whose output had to be manually edited into pcre2_tables.c. Here is
# the history of the original script:
# -----------------------------------------------------------------------------
# Modified by PH 17-March-2009 to generate the more verbose form that works
# for UTF-support in EBCDIC as well as ASCII environments.
# Modified by PH 01-March-2010 to add new scripts for Unicode 5.2.0.
# Modified by PH 04-May-2010 to add new "X.." special categories.
# Modified by PH 30-April-2011 to add new scripts for Unicode 6.0.0
# Modified by ChPe 30-September-2012 to add this note; no other changes were
# necessary for Unicode 6.2.0 support.
# Modfied by PH 26-February-2013 to add the Xuc special category.
# Comment modified by PH 13-May-2014 to update to PCRE2 file names.
# Script updated to Python 3 by running it through the 2to3 converter.
# Added script names for Unicode 7.0.0, 20-June-2014.
# Added script names for Unicode 8.0.0, 19-June-2015.
# Added script names for Unicode 10.0.0, 02-July-2017.
# Added script names for Unicode 11.0.0, 03-July-2018.
# Added 'Unknown' script, 01-October-2018.
# Added script names for Unicode 12.1.0, 27-July-2019.
# Added script names for Unicode 13.0.0, 10-March-2020.
# Added Script names for Unicode 14.0.0, PCRE2-10.39
# Added support for bidi class and bidi control, 06-December-2021
# This also involved lower casing strings and removing underscores, in
# accordance with Unicode's "loose matching" rules, which Perl observes.
# Changed default script type from PT_SC to PT_SCX, 18-December-2021
# -----------------------------------------------------------------------------
# Note subsequent changes here:
# Import common data lists and functions
from GenerateCommon import \
bidi_classes, \
category_names, \
general_category_names, \
script_abbrevs, \
script_names, \
open_output
# Open the output file (no return on failure). This call also writes standard
# header boilerplate.
f = open_output("pcre2_ucptables.c")
# The list in bidi_classes contains just the Unicode classes such as AN, LRE,
# etc., along with comments. We need to add "bidi" in front of each value, in
# order to create names that don't clash with other types of property.
bidi_class_names = []
for i in range(0, len(bidi_classes), 2):
bidi_class_names.append("bidi" + bidi_classes[i])
# Remove the comments from other lists that contain them.
category_names = category_names[::2]
# Create standardized versions of the names by lowercasing and removing
# underscores.
def stdnames(x):
y = [''] * len(x)
for i in range(len(x)):
y[i] = x[i].lower().replace('_', '')
return y
std_script_names = stdnames(script_names)
std_category_names = stdnames(category_names)
std_general_category_names = stdnames(general_category_names)
std_bidi_class_names = stdnames(bidi_class_names)
# Create the table, starting with the Unicode script, category and bidi class
# names. We keep both the standardized name and the original, because the
# latter is used for the ucp_xx names.
utt_table = list(zip(std_script_names, script_names, ['PT_SCX'] * len(script_names)))
utt_table += list(zip(std_category_names, category_names, ['PT_PC'] * len(category_names)))
utt_table += list(zip(std_general_category_names, general_category_names, ['PT_GC'] * len(general_category_names)))
utt_table += list(zip(std_bidi_class_names, bidi_class_names, ['PT_BIDICL'] * len(bidi_class_names)))
# Now add specials and synonyms. Note both the standardized and capitalized
# forms are needed.
utt_table.append(('any', 'Any', 'PT_ANY'))
utt_table.append(('bidic', 'BidiC', 'PT_BIDICO'))
utt_table.append(('bidicontrol', 'Bidi_Control', 'PT_BIDICO'))
utt_table.append(('l&', 'L&', 'PT_LAMP'))
utt_table.append(('lc', 'LC', 'PT_LAMP'))
utt_table.append(('xan', 'Xan', 'PT_ALNUM'))
utt_table.append(('xps', 'Xps', 'PT_PXSPACE'))
utt_table.append(('xsp', 'Xsp', 'PT_SPACE'))
utt_table.append(('xuc', 'Xuc', 'PT_UCNC'))
utt_table.append(('xwd', 'Xwd', 'PT_WORD'))
# Sort the table.
utt_table.sort()
# Output file-specific heading
f.write("""\
#ifdef SUPPORT_UNICODE
/* The PRIV(utt)[] table below translates Unicode property names into type and
code values. It is searched by binary chop, so must be in collating sequence of
name. Originally, the table contained pointers to the name strings in the first
field of each entry. However, that leads to a large number of relocations when
a shared library is dynamically loaded. A significant reduction is made by
putting all the names into a single, large string and using offsets instead.
All letters are lower cased, and underscores are removed, in accordance with
the "loose matching" rules that Unicode advises and Perl uses. */
\n""")
# We have to use STR_ macros to define the strings so that it all works in
# UTF-8 mode on EBCDIC platforms.
for utt in utt_table:
f.write('#define STRING_%s0' % (utt[0].replace('&', '_AMPERSAND')))
for c in utt[0]:
if c == '&':
f.write(' STR_AMPERSAND')
else:
f.write(' STR_%s' % c);
f.write(' "\\0"\n')
# Output the long string of concatenated names
f.write('\nconst char PRIV(utt_names)[] =\n');
last = ''
for utt in utt_table:
if utt == utt_table[-1]:
last = ';'
f.write(' STRING_%s0%s\n' % (utt[0].replace('&', '_AMPERSAND'), last))
# Output the property type table
f.write('\nconst ucp_type_table PRIV(utt)[] = {\n')
offset = 0
last = ','
for utt in utt_table:
if utt[2] in ('PT_ANY', 'PT_LAMP', 'PT_ALNUM', 'PT_PXSPACE',
'PT_SPACE', 'PT_UCNC', 'PT_WORD', 'PT_BIDICO'):
value = '0'
else:
value = 'ucp_' + utt[1]
if utt == utt_table[-1]:
last = ''
f.write(' { %3d, %s, %s }%s\n' % (offset, utt[2], value, last))
offset += len(utt[0]) + 1
f.write('};\n\n')
# Ending text
f.write("""\
const size_t PRIV(utt_size) = sizeof(PRIV(utt)) / sizeof(ucp_type_table);
#endif /* SUPPORT_UNICODE */
/* End of pcre2_ucptables.c */
""")
f.close
# End

166
maint/GenerateUtt.py
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@ -1,166 +0,0 @@
#! /usr/bin/python
# Generate utt tables. Note: this script has now been converted to Python 3.
# The source file pcre2_tables.c contains (amongst other things), a table that
# is indexed by script name. In order to reduce the number of relocations when
# loading the library, the names are held as a single large string, with
# offsets in the table. This is tedious to maintain by hand. Therefore, this
# script is used to generate the table. The output is sent to stdout; usually
# that should be directed to a temporary file. Then pcre2_tables.c can be
# edited by replacing the relevant definitions and table therein with the
# temporary file.
# Modified by PH 17-March-2009 to generate the more verbose form that works
# for UTF-support in EBCDIC as well as ASCII environments.
# Modified by PH 01-March-2010 to add new scripts for Unicode 5.2.0.
# Modified by PH 04-May-2010 to add new "X.." special categories.
# Modified by PH 30-April-2011 to add new scripts for Unicode 6.0.0
# Modified by ChPe 30-September-2012 to add this note; no other changes were
# necessary for Unicode 6.2.0 support.
# Modfied by PH 26-February-2013 to add the Xuc special category.
# Comment modified by PH 13-May-2014 to update to PCRE2 file names.
# Script updated to Python 3 by running it through the 2to3 converter.
# Added script names for Unicode 7.0.0, 20-June-2014.
# Added script names for Unicode 8.0.0, 19-June-2015.
# Added script names for Unicode 10.0.0, 02-July-2017.
# Added script names for Unicode 11.0.0, 03-July-2018.
# Added 'Unknown' script, 01-October-2018.
# Added script names for Unicode 12.1.0, 27-July-2019.
# Added script names for Unicode 13.0.0, 10-March-2020.
# Added Script names for Unicode 14.0.0, PCRE2-10.39
# Added support for bidi class and bidi control, 06-December-2021
# This also involved lower casing strings and removing underscores, in
# accordance with Unicode's "loose matching" rules, which Perl observes.
# Changed default script type from PT_SC to PT_SCX, 18-December-2021
script_names = ['Unknown', 'Arabic', 'Armenian', 'Bengali', 'Bopomofo', 'Braille', 'Buginese', 'Buhid', 'Canadian_Aboriginal', \
'Cherokee', 'Common', 'Coptic', 'Cypriot', 'Cyrillic', 'Deseret', 'Devanagari', 'Ethiopic', 'Georgian', \
'Glagolitic', 'Gothic', 'Greek', 'Gujarati', 'Gurmukhi', 'Han', 'Hangul', 'Hanunoo', 'Hebrew', 'Hiragana', \
'Inherited', 'Kannada', 'Katakana', 'Kharoshthi', 'Khmer', 'Lao', 'Latin', 'Limbu', 'Linear_B', 'Malayalam', \
'Mongolian', 'Myanmar', 'New_Tai_Lue', 'Ogham', 'Old_Italic', 'Old_Persian', 'Oriya', 'Osmanya', 'Runic', \
'Shavian', 'Sinhala', 'Syloti_Nagri', 'Syriac', 'Tagalog', 'Tagbanwa', 'Tai_Le', 'Tamil', 'Telugu', 'Thaana', \
'Thai', 'Tibetan', 'Tifinagh', 'Ugaritic', 'Yi', \
# New for Unicode 5.0
'Balinese', 'Cuneiform', 'Nko', 'Phags_Pa', 'Phoenician', \
# New for Unicode 5.1
'Carian', 'Cham', 'Kayah_Li', 'Lepcha', 'Lycian', 'Lydian', 'Ol_Chiki', 'Rejang', 'Saurashtra', 'Sundanese', 'Vai', \
# New for Unicode 5.2
'Avestan', 'Bamum', 'Egyptian_Hieroglyphs', 'Imperial_Aramaic', \
'Inscriptional_Pahlavi', 'Inscriptional_Parthian', \
'Javanese', 'Kaithi', 'Lisu', 'Meetei_Mayek', \
'Old_South_Arabian', 'Old_Turkic', 'Samaritan', 'Tai_Tham', 'Tai_Viet', \
# New for Unicode 6.0.0
'Batak', 'Brahmi', 'Mandaic', \
# New for Unicode 6.1.0
'Chakma', 'Meroitic_Cursive', 'Meroitic_Hieroglyphs', 'Miao', 'Sharada', 'Sora_Sompeng', 'Takri',
# New for Unicode 7.0.0
'Bassa_Vah', 'Caucasian_Albanian', 'Duployan', 'Elbasan', 'Grantha', 'Khojki', 'Khudawadi',
'Linear_A', 'Mahajani', 'Manichaean', 'Mende_Kikakui', 'Modi', 'Mro', 'Nabataean',
'Old_North_Arabian', 'Old_Permic', 'Pahawh_Hmong', 'Palmyrene', 'Psalter_Pahlavi',
'Pau_Cin_Hau', 'Siddham', 'Tirhuta', 'Warang_Citi',
# New for Unicode 8.0.0
'Ahom', 'Anatolian_Hieroglyphs', 'Hatran', 'Multani', 'Old_Hungarian',
'SignWriting',
# New for Unicode 10.0.0
'Adlam', 'Bhaiksuki', 'Marchen', 'Newa', 'Osage', 'Tangut', 'Masaram_Gondi',
'Nushu', 'Soyombo', 'Zanabazar_Square',
# New for Unicode 11.0.0
'Dogra', 'Gunjala_Gondi', 'Hanifi_Rohingya', 'Makasar', 'Medefaidrin',
'Old_Sogdian', 'Sogdian',
# New for Unicode 12.0.0
'Elymaic', 'Nandinagari', 'Nyiakeng_Puachue_Hmong', 'Wancho',
# New for Unicode 13.0.0
'Chorasmian', 'Dives_Akuru', 'Khitan_Small_Script', 'Yezidi',
# New for Unicode 14.0.0
'Cypro_Minoan', 'Old_Uyghur', 'Tangsa', 'Toto', 'Vithkuqi'
]
category_names = ['Cc', 'Cf', 'Cn', 'Co', 'Cs', 'Ll', 'Lm', 'Lo', 'Lt', 'Lu',
'Mc', 'Me', 'Mn', 'Nd', 'Nl', 'No', 'Pc', 'Pd', 'Pe', 'Pf', 'Pi', 'Po', 'Ps',
'Sc', 'Sk', 'Sm', 'So', 'Zl', 'Zp', 'Zs' ]
general_category_names = ['C', 'L', 'M', 'N', 'P', 'S', 'Z']
bidiclass_names = ['bidiAL', 'bidiAN', 'bidiB', 'bidiBN', 'bidiCS', 'bidiEN',
'bidiES', 'bidiET', 'bidiFSI', 'bidiL', 'bidiLRE', 'bidiLRI', 'bidiLRO',
'bidiNSM', 'bidiON', 'bidiPDF', 'bidiPDI', 'bidiR', 'bidiRLE', 'bidiRLI',
'bidiRLO', 'bidiS', 'bidiWS' ]
# Create standardized versions of the names by lowercasing and removing
# ampersands.
def stdnames(x):
y = [''] * len(x)
for i in range(len(x)):
y[i] = x[i].lower().replace('_', '')
return y
std_script_names = stdnames(script_names)
std_category_names = stdnames(category_names)
std_general_category_names = stdnames(general_category_names)
std_bidiclass_names = stdnames(bidiclass_names)
# Create the table, starting with the Unicode script, category and bidi class
# names. We keep both the standardized name and the original, because the
# latter is used for the ucp_xx names.
utt_table = list(zip(std_script_names, script_names, ['PT_SCX'] * len(script_names)))
utt_table += list(zip(std_category_names, category_names, ['PT_PC'] * len(category_names)))
utt_table += list(zip(std_general_category_names, general_category_names, ['PT_GC'] * len(general_category_names)))
utt_table += list(zip(std_bidiclass_names, bidiclass_names, ['PT_BIDICL'] * len(bidiclass_names)))
# Now add our own specials and synonyms. Note both the standardized and
# capitalized forms are needed.
utt_table.append(('any', 'Any', 'PT_ANY'))
utt_table.append(('bidic', 'BidiC', 'PT_BIDICO'))
utt_table.append(('bidicontrol', 'Bidi_Control', 'PT_BIDICO'))
utt_table.append(('l&', 'L&', 'PT_LAMP'))
utt_table.append(('lc', 'LC', 'PT_LAMP'))
utt_table.append(('xan', 'Xan', 'PT_ALNUM'))
utt_table.append(('xps', 'Xps', 'PT_PXSPACE'))
utt_table.append(('xsp', 'Xsp', 'PT_SPACE'))
utt_table.append(('xuc', 'Xuc', 'PT_UCNC'))
utt_table.append(('xwd', 'Xwd', 'PT_WORD'))
# Sort the table.
utt_table.sort()
# We have to use STR_ macros to define the strings so that it all works in
# UTF-8 mode on EBCDIC platforms.
for utt in utt_table:
print('#define STRING_%s0' % (utt[0].replace('&', '_AMPERSAND')), end=' ')
for c in utt[0]:
if c == '&':
print('STR_AMPERSAND', end=' ')
else:
print('STR_%s' % c, end=' ');
print('"\\0"')
# Print the actual table, using the string names
print('')
print('const char PRIV(utt_names)[] =');
last = ''
for utt in utt_table:
if utt == utt_table[-1]:
last = ';'
print(' STRING_%s0%s' % (utt[0].replace('&', '_AMPERSAND'), last))
print('\nconst ucp_type_table PRIV(utt)[] = {')
offset = 0
last = ','
for utt in utt_table:
if utt[2] in ('PT_ANY', 'PT_LAMP', 'PT_ALNUM', 'PT_PXSPACE',
'PT_SPACE', 'PT_UCNC', 'PT_WORD', 'PT_BIDICO'):
value = '0'
else:
value = 'ucp_' + utt[1]
if utt == utt_table[-1]:
last = ''
print(' { %3d, %s, %s }%s' % (offset, utt[2], value, last))
offset += len(utt[0]) + 1
print('};')

894
maint/MultiStage2.py
View File

@ -1,894 +0,0 @@
#! /usr/bin/python
# Multistage table builder
# (c) Peter Kankowski, 2008
##############################################################################
# This script was submitted to the PCRE project by Peter Kankowski as part of
# the upgrading of Unicode property support. The new code speeds up property
# matching many times. The script is for the use of PCRE maintainers, to
# generate the pcre2_ucd.c file that contains a digested form of the Unicode
# data tables. A number of extensions have been added to the original script.
#
# The script has now been upgraded to Python 3 for PCRE2, and should be run in
# the maint subdirectory, using the command
#
# [python3] ./MultiStage2.py >../src/pcre2_ucd.c
#
# It requires eight Unicode data tables: DerivedBidiClass.txt,
# DerivedGeneralCategory.txt, GraphemeBreakProperty.txt, PropList.txt,
# Scripts.txt, ScriptExtensions.txt, CaseFolding.txt, and emoji-data.txt. These
# must be in the maint/Unicode.tables subdirectory.
#
# DerivedBidiClass.txt and DerivedGeneralCategory.txt are in the "extracted"
# subdirectory of the Unicode database (UCD) on the Unicode web site;
# GraphemeBreakProperty.txt is in the "auxiliary" subdirectory. PropList.txt,
# Scripts.txt, ScriptExtensions.txt, and CaseFolding.txt are directly in the
# UCD directory.
#
# The emoji-data.txt file is found in the "emoji" subdirectory even though it
# is technically part of a different (but coordinated) standard as shown
# in files associated with Unicode Technical Standard #51 ("Unicode Emoji"),
# for example:
#
# http://unicode.org/Public/emoji/13.0/ReadMe.txt
#
# -----------------------------------------------------------------------------
# Minor modifications made to this script:
# Added #! line at start
# Removed tabs
# Made it work with Python 2.4 by rewriting two statements that needed 2.5
# Consequent code tidy
# Adjusted data file names to take from the Unicode.tables directory
# Adjusted global table names by prefixing _pcre_.
# Commented out stuff relating to the casefolding table, which isn't used;
# removed completely in 2012.
# Corrected size calculation
# Add #ifndef SUPPORT_UCP to use dummy tables when no UCP support is needed.
# Update for PCRE2: name changes, and SUPPORT_UCP is abolished.
#
# Major modifications made to this script:
# Added code to add a grapheme break property field to records.
#
# Added code to search for sets of more than two characters that must match
# each other caselessly. A new table is output containing these sets, and
# offsets into the table are added to the main output records. This new
# code scans CaseFolding.txt instead of UnicodeData.txt, which is no longer
# used.
#
# Update for Python3:
# . Processed with 2to3, but that didn't fix everything
# . Changed string.strip to str.strip
# . Added encoding='utf-8' to the open() call
# . Inserted 'int' before blocksize/ELEMS_PER_LINE because an int is
# required and the result of the division is a float
#
# Added code to scan the emoji-data.txt file to find the Extended Pictographic
# property, which is used by PCRE2 as a grapheme breaking property. This was
# done when updating to Unicode 11.0.0 (July 2018).
#
# Added code to add a Script Extensions field to records. This has increased
# their size from 8 to 12 bytes, only 10 of which are currently used.
#
# Added code to add a bidi class field to records by scanning the
# DerivedBidiClass.txt and PropList.txt files. This uses one of the two spare
# bytes, so now 11 out of 12 are in use.
#
# 01-March-2010: Updated list of scripts for Unicode 5.2.0
# 30-April-2011: Updated list of scripts for Unicode 6.0.0
# July-2012: Updated list of scripts for Unicode 6.1.0
# 20-August-2012: Added scan of GraphemeBreakProperty.txt and added a new
# field in the record to hold the value. Luckily, the
# structure had a hole in it, so the resulting table is
# not much bigger than before.
# 18-September-2012: Added code for multiple caseless sets. This uses the
# final hole in the structure.
# 30-September-2012: Added RegionalIndicator break property from Unicode 6.2.0
# 13-May-2014: Updated for PCRE2
# 03-June-2014: Updated for Python 3
# 20-June-2014: Updated for Unicode 7.0.0
# 12-August-2014: Updated to put Unicode version into the file
# 19-June-2015: Updated for Unicode 8.0.0
# 02-July-2017: Updated for Unicode 10.0.0
# 03-July-2018: Updated for Unicode 11.0.0
# 07-July-2018: Added code to scan emoji-data.txt for the Extended
# Pictographic property.
# 01-October-2018: Added the 'Unknown' script name
# 03-October-2018: Added new field for Script Extensions
# 27-July-2019: Updated for Unicode 12.1.0
# 10-March-2020: Updated for Unicode 13.0.0
# PCRE2-10.39: Updated for Unicode 14.0.0
# 05-December-2021: Added code to scan DerivedBidiClass.txt for bidi class,
# and also PropList.txt for the Bidi_Control property
# 19-December-2021: Reworked script extensions lists to be bit maps instead
# of zero-terminated lists of script numbers.
# ----------------------------------------------------------------------------
#
#
# The main tables generated by this script are used by macros defined in
# pcre2_internal.h. They look up Unicode character properties using short
# sequences of code that contains no branches, which makes for greater speed.
#
# Conceptually, there is a table of records (of type ucd_record), one for each
# Unicode character. Each record contains the script number, script extension
# value, character type, grapheme break type, offset to caseless matching set,
# offset to the character's other case, and the bidi class/control. However, a
# real table covering all Unicode characters would be far too big. It can be
# efficiently compressed by observing that many characters have the same
# record, and many blocks of characters (taking 128 characters in a block) have
# the same set of records as other blocks. This leads to a 2-stage lookup
# process.
#
# This script constructs six tables. The ucd_caseless_sets table contains
# lists of characters that all match each other caselessly. Each list is
# in order, and is terminated by NOTACHAR (0xffffffff), which is larger than
# any valid character. The first list is empty; this is used for characters
# that are not part of any list.
#
# The ucd_digit_sets table contains the code points of the '9' characters in
# each set of 10 decimal digits in Unicode. This is used to ensure that digits
# in script runs all come from the same set. The first element in the vector
# contains the number of subsequent elements, which are in ascending order.
#
# The ucd_script_sets vector contains bitmaps that represent lists of scripts
# for the Script Extensions properties of certain characters. Each bitmap
# consists of a fixed number of unsigned 32-bit numbers, enough to allocate
# a bit for every known script. A character with more than one script listed
# for its Script Extension property has a negative value in its record. This is
# the negated offset to the start of the relevant bitmap in the ucd_script_sets
# vector.
#
# The ucd_records table contains one instance of every unique record that is
# required. The ucd_stage1 table is indexed by a character's block number,
# which is the character's code point divided by 128, since 128 is the size
# of each block. The result of a lookup in ucd_stage1 a "virtual" block number.
#
# The ucd_stage2 table is a table of "virtual" blocks; each block is indexed by
# the offset of a character within its own block, and the result is the index
# number of the required record in the ucd_records vector.
#
# The following examples are correct for the Unicode 14.0.0 database. Future
# updates may make change the actual lookup values.
#
# Example: lowercase "a" (U+0061) is in block 0
# lookup 0 in stage1 table yields 0
# lookup 97 (0x61) in the first table in stage2 yields 22
# record 22 is { 34, 5, 12, 0, -32, 34, 2, 0 }
# 34 = ucp_Latin => Latin script
# 5 = ucp_Ll => Lower case letter
# 12 = ucp_gbOther => Grapheme break property "Other"
# 0 => Not part of a caseless set
# -32 (-0x20) => Other case is U+0041
# 34 = ucp_Latin => No special Script Extension property
# 2 = ucp_bidiL => Bidi class left-to-right
# 0 => Dummy value, unused at present
#
# Almost all lowercase latin characters resolve to the same record. One or two
# are different because they are part of a multi-character caseless set (for
# example, k, K and the Kelvin symbol are such a set).
#
# Example: hiragana letter A (U+3042) is in block 96 (0x60)
# lookup 96 in stage1 table yields 91
# lookup 66 (0x42) in table 91 in stage2 yields 613
# record 613 is { 27, 7, 12, 0, 0, 27, 2, 0 }
# 27 = ucp_Hiragana => Hiragana script
# 7 = ucp_Lo => Other letter
# 12 = ucp_gbOther => Grapheme break property "Other"
# 0 => Not part of a caseless set
# 0 => No other case
# 27 = ucp_Hiragana => No special Script Extension property
# 2 = ucp_bidiL => Bidi class left-to-right
# 0 => Dummy value, unused at present
#
# Example: vedic tone karshana (U+1CD0) is in block 57 (0x39)
# lookup 57 in stage1 table yields 55
# lookup 80 (0x50) in table 55 in stage2 yields 485
# record 485 is { 28, 12, 3, 0, 0, -122, 19, 0 }
# 28 = ucp_Inherited => Script inherited from predecessor
# 12 = ucp_Mn => Non-spacing mark
# 3 = ucp_gbExtend => Grapheme break property "Extend"
# 0 => Not part of a caseless set
# 0 => No other case
# -228 => Script Extension list offset = 228
# 13 = ucp_bidiNSM => Bidi class non-spacing mark
# 0 => Dummy value, unused at present
#
# At offset 228 in the ucd_script_sets vector we find a bitmap with bits 3, 15,
# 29, and 107 set. This means that this character is expected to be used with
# any of those scripts, which are Bengali, Devanagari, Kannada, and Grantha.
#
# Philip Hazel, last updated 19 December 2021.
##############################################################################
import re
import string
import sys
MAX_UNICODE = 0x110000
NOTACHAR = 0xffffffff
# Parse a line of Scripts.txt, GraphemeBreakProperty.txt,
# DerivedBidiClass.txt or DerivedGeneralCategory.txt
def make_get_names(enum):
return lambda chardata: enum.index(chardata[1])
# Parse a line of CaseFolding.txt
def get_other_case(chardata):
if chardata[1] == 'C' or chardata[1] == 'S':
return int(chardata[2], 16) - int(chardata[0], 16)
return 0
# Parse a line of ScriptExtensions.txt
def get_script_extension(chardata):
this_script_list = list(chardata[1].split(' '))
if len(this_script_list) == 1:
return script_abbrevs.index(this_script_list[0])
script_numbers = []
for d in this_script_list:
script_numbers.append(script_abbrevs.index(d))
script_numbers.append(0)
script_numbers_length = len(script_numbers)
for i in range(1, len(script_lists) - script_numbers_length + 1):
for j in range(0, script_numbers_length):
found = True
if script_lists[i+j] != script_numbers[j]:
found = False
break
if found:
return -i
# Not found in existing lists
return_value = len(script_lists)
script_lists.extend(script_numbers)
return -return_value
# Read the whole table in memory, setting/checking the Unicode version
def read_table(file_name, get_value, default_value):
global unicode_version
f = re.match(r'^[^/]+/([^.]+)\.txt$', file_name)
file_base = f.group(1)
version_pat = r"^# " + re.escape(file_base) + r"-(\d+\.\d+\.\d+)\.txt$"
file = open(file_name, 'r', encoding='utf-8')
f = re.match(version_pat, file.readline())
version = f.group(1)
if unicode_version == "":
unicode_version = version
elif unicode_version != version:
print("WARNING: Unicode version differs in %s", file_name, file=sys.stderr)
table = [default_value] * MAX_UNICODE
for line in file:
line = re.sub(r'#.*', '', line)
chardata = list(map(str.strip, line.split(';')))
if len(chardata) <= 1:
continue
value = get_value(chardata)
m = re.match(r'([0-9a-fA-F]+)(\.\.([0-9a-fA-F]+))?$', chardata[0])
char = int(m.group(1), 16)
if m.group(3) is None:
last = char
else:
last = int(m.group(3), 16)
for i in range(char, last + 1):
# It is important not to overwrite a previously set
# value because in the CaseFolding file there are lines
# to be ignored (returning the default value of 0)
# which often come after a line which has already set
# data.
if table[i] == default_value:
table[i] = value
file.close()
return table
# Get the smallest possible C language type for the values
def get_type_size(table):
type_size = [("uint8_t", 1), ("uint16_t", 2), ("uint32_t", 4),
("signed char", 1), ("pcre_int16", 2), ("pcre_int32", 4)]
limits = [(0, 255), (0, 65535), (0, 4294967295),
(-128, 127), (-32768, 32767), (-2147483648, 2147483647)]
minval = min(table)
maxval = max(table)
for num, (minlimit, maxlimit) in enumerate(limits):
if minlimit <= minval and maxval <= maxlimit:
return type_size[num]
else:
raise OverflowError("Too large to fit into C types")
def get_tables_size(*tables):
total_size = 0
for table in tables:
type, size = get_type_size(table)
total_size += size * len(table)
return total_size
# Compress the table into the two stages
def compress_table(table, block_size):
blocks = {} # Dictionary for finding identical blocks
stage1 = [] # Stage 1 table contains block numbers (indices into stage 2 table)
stage2 = [] # Stage 2 table contains the blocks with property values
table = tuple(table)
for i in range(0, len(table), block_size):
block = table[i:i+block_size]
start = blocks.get(block)
if start is None:
# Allocate a new block
start = len(stage2) / block_size
stage2 += block
blocks[block] = start
stage1.append(start)
return stage1, stage2
# Print a table
def print_table(table, table_name, block_size = None):
type, size = get_type_size(table)
ELEMS_PER_LINE = 16
s = "const %s %s[] = { /* %d bytes" % (type, table_name, size * len(table))
if block_size:
s += ", block = %d" % block_size
print(s + " */")
table = tuple(table)
if block_size is None:
fmt = "%3d," * ELEMS_PER_LINE + " /* U+%04X */"
mult = MAX_UNICODE / len(table)
for i in range(0, len(table), ELEMS_PER_LINE):
print(fmt % (table[i:i+ELEMS_PER_LINE] +
(int(i * mult),)))
else:
if block_size > ELEMS_PER_LINE:
el = ELEMS_PER_LINE
else:
el = block_size
fmt = "%3d," * el + "\n"
if block_size > ELEMS_PER_LINE:
fmt = fmt * int(block_size / ELEMS_PER_LINE)
for i in range(0, len(table), block_size):
print(("/* block %d */\n" + fmt) % ((i / block_size,) + table[i:i+block_size]))
print("};\n")
# Extract the unique combinations of properties into records
def combine_tables(*tables):
records = {}
index = []
for t in zip(*tables):
i = records.get(t)
if i is None:
i = records[t] = len(records)
index.append(i)
return index, records
def get_record_size_struct(records):
size = 0
structure = '/* When recompiling tables with a new Unicode version, please check the\n' + \
'types in this structure definition from pcre2_internal.h (the actual\n' + \
'field names will be different):\n\ntypedef struct {\n'
for i in range(len(records[0])):
record_slice = [record[i] for record in records]
slice_type, slice_size = get_type_size(record_slice)
# add padding: round up to the nearest power of slice_size
size = (size + slice_size - 1) & -slice_size
size += slice_size
structure += '%s property_%d;\n' % (slice_type, i)
# round up to the first item of the next structure in array
record_slice = [record[0] for record in records]
slice_type, slice_size = get_type_size(record_slice)
size = (size + slice_size - 1) & -slice_size
structure += '} ucd_record;\n*/\n'
return size, structure
def test_record_size():
tests = [ \
( [(3,), (6,), (6,), (1,)], 1 ), \
( [(300,), (600,), (600,), (100,)], 2 ), \
( [(25, 3), (6, 6), (34, 6), (68, 1)], 2 ), \
( [(300, 3), (6, 6), (340, 6), (690, 1)], 4 ), \
( [(3, 300), (6, 6), (6, 340), (1, 690)], 4 ), \
( [(300, 300), (6, 6), (6, 340), (1, 690)], 4 ), \
( [(3, 100000), (6, 6), (6, 123456), (1, 690)], 8 ), \
( [(100000, 300), (6, 6), (123456, 6), (1, 690)], 8 ), \
]
for test in tests:
size, struct = get_record_size_struct(test[0])
assert(size == test[1])
#print struct
def print_records(records, record_size):
print('const ucd_record PRIV(ucd_records)[] = { ' + \
'/* %d bytes, record size %d */' % (len(records) * record_size, record_size))
records = list(zip(list(records.keys()), list(records.values())))
records.sort(key = lambda x: x[1])
for i, record in enumerate(records):
print((' {' + '%6d, ' * len(record[0]) + '}, /* %3d */') % (record[0] + (i,)))
print('};\n')
script_names = ['Unknown', 'Arabic', 'Armenian', 'Bengali', 'Bopomofo', 'Braille', 'Buginese', 'Buhid', 'Canadian_Aboriginal',
'Cherokee', 'Common', 'Coptic', 'Cypriot', 'Cyrillic', 'Deseret', 'Devanagari', 'Ethiopic', 'Georgian',
'Glagolitic', 'Gothic', 'Greek', 'Gujarati', 'Gurmukhi', 'Han', 'Hangul', 'Hanunoo', 'Hebrew', 'Hiragana',
'Inherited', 'Kannada', 'Katakana', 'Kharoshthi', 'Khmer', 'Lao', 'Latin', 'Limbu', 'Linear_B', 'Malayalam',
'Mongolian', 'Myanmar', 'New_Tai_Lue', 'Ogham', 'Old_Italic', 'Old_Persian', 'Oriya', 'Osmanya', 'Runic',
'Shavian', 'Sinhala', 'Syloti_Nagri', 'Syriac', 'Tagalog', 'Tagbanwa', 'Tai_Le', 'Tamil', 'Telugu', 'Thaana',
'Thai', 'Tibetan', 'Tifinagh', 'Ugaritic', 'Yi',
# New for Unicode 5.0
'Balinese', 'Cuneiform', 'Nko', 'Phags_Pa', 'Phoenician',
# New for Unicode 5.1
'Carian', 'Cham', 'Kayah_Li', 'Lepcha', 'Lycian', 'Lydian', 'Ol_Chiki', 'Rejang', 'Saurashtra', 'Sundanese', 'Vai',
# New for Unicode 5.2
'Avestan', 'Bamum', 'Egyptian_Hieroglyphs', 'Imperial_Aramaic',
'Inscriptional_Pahlavi', 'Inscriptional_Parthian',
'Javanese', 'Kaithi', 'Lisu', 'Meetei_Mayek',
'Old_South_Arabian', 'Old_Turkic', 'Samaritan', 'Tai_Tham', 'Tai_Viet',
# New for Unicode 6.0.0
'Batak', 'Brahmi', 'Mandaic',
# New for Unicode 6.1.0
'Chakma', 'Meroitic_Cursive', 'Meroitic_Hieroglyphs', 'Miao', 'Sharada', 'Sora_Sompeng', 'Takri',
# New for Unicode 7.0.0
'Bassa_Vah', 'Caucasian_Albanian', 'Duployan', 'Elbasan', 'Grantha', 'Khojki', 'Khudawadi',
'Linear_A', 'Mahajani', 'Manichaean', 'Mende_Kikakui', 'Modi', 'Mro', 'Nabataean',
'Old_North_Arabian', 'Old_Permic', 'Pahawh_Hmong', 'Palmyrene', 'Psalter_Pahlavi',
'Pau_Cin_Hau', 'Siddham', 'Tirhuta', 'Warang_Citi',
# New for Unicode 8.0.0
'Ahom', 'Anatolian_Hieroglyphs', 'Hatran', 'Multani', 'Old_Hungarian',
'SignWriting',
# New for Unicode 10.0.0
'Adlam', 'Bhaiksuki', 'Marchen', 'Newa', 'Osage', 'Tangut', 'Masaram_Gondi',
'Nushu', 'Soyombo', 'Zanabazar_Square',
# New for Unicode 11.0.0
'Dogra', 'Gunjala_Gondi', 'Hanifi_Rohingya', 'Makasar', 'Medefaidrin',
'Old_Sogdian', 'Sogdian',
# New for Unicode 12.0.0
'Elymaic', 'Nandinagari', 'Nyiakeng_Puachue_Hmong', 'Wancho',
# New for Unicode 13.0.0
'Chorasmian', 'Dives_Akuru', 'Khitan_Small_Script', 'Yezidi',
# New for Unicode 14.0.0
'Cypro_Minoan', 'Old_Uyghur', 'Tangsa', 'Toto', 'Vithkuqi'
]
script_abbrevs = [
'Zzzz', 'Arab', 'Armn', 'Beng', 'Bopo', 'Brai', 'Bugi', 'Buhd', 'Cans',
'Cher', 'Zyyy', 'Copt', 'Cprt', 'Cyrl', 'Dsrt', 'Deva', 'Ethi', 'Geor',
'Glag', 'Goth', 'Grek', 'Gujr', 'Guru', 'Hani', 'Hang', 'Hano', 'Hebr',
'Hira', 'Zinh', 'Knda', 'Kana', 'Khar', 'Khmr', 'Laoo', 'Latn', 'Limb',
'Linb', 'Mlym', 'Mong', 'Mymr', 'Talu', 'Ogam', 'Ital', 'Xpeo', 'Orya',
'Osma', 'Runr', 'Shaw', 'Sinh', 'Sylo', 'Syrc', 'Tglg', 'Tagb', 'Tale',
'Taml', 'Telu', 'Thaa', 'Thai', 'Tibt', 'Tfng', 'Ugar', 'Yiii',
#New for Unicode 5.0
'Bali', 'Xsux', 'Nkoo', 'Phag', 'Phnx',
#New for Unicode 5.1
'Cari', 'Cham', 'Kali', 'Lepc', 'Lyci', 'Lydi', 'Olck', 'Rjng', 'Saur',
'Sund', 'Vaii',
#New for Unicode 5.2
'Avst', 'Bamu', 'Egyp', 'Armi', 'Phli', 'Prti', 'Java', 'Kthi', 'Lisu',
'Mtei', 'Sarb', 'Orkh', 'Samr', 'Lana', 'Tavt',
#New for Unicode 6.0.0
'Batk', 'Brah', 'Mand',
#New for Unicode 6.1.0
'Cakm', 'Merc', 'Mero', 'Plrd', 'Shrd', 'Sora', 'Takr',
#New for Unicode 7.0.0
'Bass', 'Aghb', 'Dupl', 'Elba', 'Gran', 'Khoj', 'Sind', 'Lina', 'Mahj',
'Mani', 'Mend', 'Modi', 'Mroo', 'Nbat', 'Narb', 'Perm', 'Hmng', 'Palm',
'Phlp', 'Pauc', 'Sidd', 'Tirh', 'Wara',
#New for Unicode 8.0.0
'Ahom', 'Hluw', 'Hatr', 'Mult', 'Hung', 'Sgnw',
#New for Unicode 10.0.0
'Adlm', 'Bhks', 'Marc', 'Newa', 'Osge', 'Tang', 'Gonm', 'Nshu', 'Soyo',
'Zanb',
#New for Unicode 11.0.0
'Dogr', 'Gong', 'Rohg', 'Maka', 'Medf', 'Sogo', 'Sogd',
#New for Unicode 12.0.0
'Elym', 'Nand', 'Hmnp', 'Wcho',
#New for Unicode 13.0.0
'Chrs', 'Diak', 'Kits', 'Yezi',
#New for Unicode 14.0.0
'Cpmn', 'Ougr', 'Tngs', 'Toto', 'Vith'
]
category_names = ['Cc', 'Cf', 'Cn', 'Co', 'Cs', 'Ll', 'Lm', 'Lo', 'Lt', 'Lu',
'Mc', 'Me', 'Mn', 'Nd', 'Nl', 'No', 'Pc', 'Pd', 'Pe', 'Pf', 'Pi', 'Po', 'Ps',
'Sc', 'Sk', 'Sm', 'So', 'Zl', 'Zp', 'Zs' ]
# The Extended_Pictographic property is not found in the file where all the
# others are (GraphemeBreakProperty.txt). It comes from the emoji-data.txt
# file, but we list it here so that the name has the correct index value.
break_property_names = ['CR', 'LF', 'Control', 'Extend', 'Prepend',
'SpacingMark', 'L', 'V', 'T', 'LV', 'LVT', 'Regional_Indicator', 'Other',
'ZWJ', 'Extended_Pictographic' ]
# BIDI class property names in the DerivedBidiClass.txt file
bidiclass_names = ['AL', 'AN', 'B', 'BN', 'CS', 'EN', 'ES', 'ET', 'FSI', 'L',
'LRE', 'LRI', 'LRO', 'NSM', 'ON', 'PDF', 'PDI', 'R', 'RLE', 'RLI', 'RLO',
'S', 'WS' ]
# Create the various tables
test_record_size()
unicode_version = ""
script = read_table('Unicode.tables/Scripts.txt', make_get_names(script_names), script_names.index('Unknown'))
category = read_table('Unicode.tables/DerivedGeneralCategory.txt', make_get_names(category_names), category_names.index('Cn'))
break_props = read_table('Unicode.tables/GraphemeBreakProperty.txt', make_get_names(break_property_names), break_property_names.index('Other'))
other_case = read_table('Unicode.tables/CaseFolding.txt', get_other_case, 0)
bidi_class = read_table('Unicode.tables/DerivedBidiClass.txt', make_get_names(bidiclass_names), bidiclass_names.index('L'))
# The Bidi_Control property is a Y/N value, so needs only one bit. We scan the
# PropList.txt file and set 0x80 bit in the bidi_class table.
file = open('Unicode.tables/PropList.txt', 'r', encoding='utf-8')
for line in file:
line = re.sub(r'#.*', '', line)
chardata = list(map(str.strip, line.split(';')))
if len(chardata) <= 1:
continue
if chardata[1] != "Bidi_Control":
continue
m = re.match(r'([0-9a-fA-F]+)(\.\.([0-9a-fA-F]+))?$', chardata[0])
char = int(m.group(1), 16)
if m.group(3) is None:
last = char
else:
last = int(m.group(3), 16)
for i in range(char, last + 1):
bidi_class[i] |= 0x80;
file.close()
# The grapheme breaking rules were changed for Unicode 11.0.0 (June 2018). Now
# we need to find the Extended_Pictographic property for emoji characters. This
# can be set as an additional grapheme break property, because the default for
# all the emojis is "other". We scan the emoji-data.txt file and modify the
# break-props table.
file = open('Unicode.tables/emoji-data.txt', 'r', encoding='utf-8')
for line in file:
line = re.sub(r'#.*', '', line)
chardata = list(map(str.strip, line.split(';')))
if len(chardata) <= 1:
continue
if chardata[1] != "Extended_Pictographic":
continue
m = re.match(r'([0-9a-fA-F]+)(\.\.([0-9a-fA-F]+))?$', chardata[0])
char = int(m.group(1), 16)
if m.group(3) is None:
last = char
else:
last = int(m.group(3), 16)
for i in range(char, last + 1):
if break_props[i] != break_property_names.index('Other'):
print("WARNING: Emoji 0x%x has break property %s, not 'Other'",
i, break_property_names[break_props[i]], file=sys.stderr)
break_props[i] = break_property_names.index('Extended_Pictographic')
file.close()
# The Script Extensions property default value is the Script value. Parse the
# file, setting 'Unknown' as the default (this will never be a Script Extension
# value), then scan it and fill in the default from Scripts. Code added by PH
# in October 2018. Positive values are used for just a single script for a
# code point. Negative values are negated offsets in a list of bitsets of
# multiple scripts. Initialize this list with a single entry, as the zeroth
# element is never used.
script_lists = [0]
script_abbrevs_default = script_abbrevs.index('Zzzz')
scriptx = read_table('Unicode.tables/ScriptExtensions.txt', get_script_extension, script_abbrevs_default)
# Scan all characters and set their default script extension to the main
# script. We also have to adjust negative scriptx values, following a change in
# the way these work. They are currently negated offsets into the script_lists
# list, but have to be changed into indices in the new ucd_script_sets vector,
# which has fixed-size entries. We can compute the new offset by counting the
# zeros that precede the current offset.
for i in range(0, MAX_UNICODE):
if scriptx[i] == script_abbrevs_default:
scriptx[i] = script[i]
elif scriptx[i] < 0:
count = 1
for j in range(-scriptx[i], 0, -1):
if script_lists[j] == 0:
count += 1
scriptx[i] = -count * (int(len(script_names)/32) + 1)
# With the addition of the Script Extensions field, we needed some padding to
# get the Unicode records up to 12 bytes (multiple of 4). Originally this was a
# 16-bit field and padding_dummy[0] was set to 256 to ensure this, but 8 bits
# are now used for the bidi class, so zero will do.
padding_dummy = [0] * MAX_UNICODE
padding_dummy[0] = 0
# This block of code was added by PH in September 2012. I am not a Python
# programmer, so the style is probably dreadful, but it does the job. It scans
# the other_case table to find sets of more than two characters that must all
# match each other caselessly. Later in this script a table of these sets is
# written out. However, we have to do this work here in order to compute the
# offsets in the table that are inserted into the main table.
# The CaseFolding.txt file lists pairs, but the common logic for reading data
# sets only one value, so first we go through the table and set "return"
# offsets for those that are not already set.
for c in range(MAX_UNICODE):
if other_case[c] != 0 and other_case[c + other_case[c]] == 0:
other_case[c + other_case[c]] = -other_case[c]
# Now scan again and create equivalence sets.
sets = []
for c in range(MAX_UNICODE):
o = c + other_case[c]
# Trigger when this character's other case does not point back here. We
# now have three characters that are case-equivalent.
if other_case[o] != -other_case[c]:
t = o + other_case[o]
# Scan the existing sets to see if any of the three characters are already
# part of a set. If so, unite the existing set with the new set.
appended = 0
for s in sets:
found = 0
for x in s:
if x == c or x == o or x == t:
found = 1
# Add new characters to an existing set
if found:
found = 0
for y in [c, o, t]:
for x in s:
if x == y:
found = 1
if not found:
s.append(y)
appended = 1
# If we have not added to an existing set, create a new one.
if not appended:
sets.append([c, o, t])
# End of loop looking for caseless sets.
# Now scan the sets and set appropriate offsets for the characters.
caseless_offsets = [0] * MAX_UNICODE
offset = 1;
for s in sets:
for x in s:
caseless_offsets[x] = offset
offset += len(s) + 1
# End of block of code for creating offsets for caseless matching sets.
# Combine the tables
table, records = combine_tables(script, category, break_props,
caseless_offsets, other_case, scriptx, bidi_class, padding_dummy)
record_size, record_struct = get_record_size_struct(list(records.keys()))
# Find the optimum block size for the two-stage table
min_size = sys.maxsize
for block_size in [2 ** i for i in range(5,10)]:
size = len(records) * record_size
stage1, stage2 = compress_table(table, block_size)
size += get_tables_size(stage1, stage2)
#print "/* block size %5d => %5d bytes */" % (block_size, size)
if size < min_size:
min_size = size
min_stage1, min_stage2 = stage1, stage2
min_block_size = block_size
print("/* This module is generated by the maint/MultiStage2.py script.")
print("Do not modify it by hand. Instead modify the script and run it")
print("to regenerate this code.")
print()
print("As well as being part of the PCRE2 library, this module is #included")
print("by the pcre2test program, which redefines the PRIV macro to change")
print("table names from _pcre2_xxx to xxxx, thereby avoiding name clashes")
print("with the library. At present, just one of these tables is actually")
print("needed. */")
print()
print("#ifndef PCRE2_PCRE2TEST")
print()
print("#ifdef HAVE_CONFIG_H")
print("#include \"config.h\"")
print("#endif")
print()
print("#include \"pcre2_internal.h\"")
print()
print("#endif /* PCRE2_PCRE2TEST */")
print()
print("/* Unicode character database. */")
print("/* This file was autogenerated by the MultiStage2.py script. */")
print("/* Total size: %d bytes, block size: %d. */" % (min_size, min_block_size))
print()
print("/* The tables herein are needed only when UCP support is built,")
print("and in PCRE2 that happens automatically with UTF support.")
print("This module should not be referenced otherwise, so")
print("it should not matter whether it is compiled or not. However")
print("a comment was received about space saving - maybe the guy linked")
print("all the modules rather than using a library - so we include a")
print("condition to cut out the tables when not needed. But don't leave")
print("a totally empty module because some compilers barf at that.")
print("Instead, just supply some small dummy tables. */")
print()
print("#ifndef SUPPORT_UNICODE")
print("const ucd_record PRIV(ucd_records)[] = {{0,0,0,0,0,0,0,0 }};")
print("const uint16_t PRIV(ucd_stage1)[] = {0};")
print("const uint16_t PRIV(ucd_stage2)[] = {0};")
print("const uint32_t PRIV(ucd_caseless_sets)[] = {0};")
print("#else")
print()
print("const char *PRIV(unicode_version) = \"{}\";".format(unicode_version))
print()
print("/* If the 32-bit library is run in non-32-bit mode, character values")
print("greater than 0x10ffff may be encountered. For these we set up a")
print("special record. */")
print()
print("#if PCRE2_CODE_UNIT_WIDTH == 32")
print("const ucd_record PRIV(dummy_ucd_record)[] = {{")
print(" ucp_Unknown, /* script */")
print(" ucp_Cn, /* type unassigned */")
print(" ucp_gbOther, /* grapheme break property */")
print(" 0, /* case set */")
print(" 0, /* other case */")
print(" ucp_Unknown, /* script extension */")
print(" ucp_bidiL, /* bidi class */")
print(" 0, /* dummy filler */")
print(" }};")
print("#endif")
print()
print(record_struct)
# --- Added by PH: output the table of caseless character sets ---
print("/* This table contains lists of characters that are caseless sets of")
print("more than one character. Each list is terminated by NOTACHAR. */\n")
print("const uint32_t PRIV(ucd_caseless_sets)[] = {")
print(" NOTACHAR,")
for s in sets:
s = sorted(s)
for x in s:
print(' 0x%04x,' % x, end=' ')
print(' NOTACHAR,')
print('};')
print()
# ------
print("/* When #included in pcre2test, we don't need the table of digit")
print("sets, nor the the large main UCD tables. */")
print()
print("#ifndef PCRE2_PCRE2TEST")
print()
# --- Added by PH: read Scripts.txt again for the sets of 10 digits. ---
digitsets = []
file = open('Unicode.tables/Scripts.txt', 'r', encoding='utf-8')
for line in file:
m = re.match(r'([0-9a-fA-F]+)\.\.([0-9a-fA-F]+)\s+;\s+\S+\s+#\s+Nd\s+', line)
if m is None:
continue
first = int(m.group(1),16)
last = int(m.group(2),16)
if ((last - first + 1) % 10) != 0:
print("ERROR: %04x..%04x does not contain a multiple of 10 characters" % (first, last),
file=sys.stderr)
while first < last:
digitsets.append(first + 9)
first += 10
file.close()
digitsets.sort()
print("/* This table lists the code points for the '9' characters in each")
print("set of decimal digits. It is used to ensure that all the digits in")
print("a script run come from the same set. */\n")
print("const uint32_t PRIV(ucd_digit_sets)[] = {")
print(" %d, /* Number of subsequent values */" % len(digitsets), end='')
count = 8
for d in digitsets:
if count == 8:
print("\n ", end='')
count = 0
print(" 0x%05x," % d, end='')
count += 1
print("\n};\n")
print("/* This vector is a list of script bitsets for the Script Extension")
print("property. */\n")
print("const uint32_t PRIV(ucd_script_sets)[] = {")
bitword_count = len(script_names)/32 + 1
bitwords = [0] * int(bitword_count)
for d in script_lists:
if d == 0:
s = " "
print(" ", end='')
for x in bitwords:
print("%s" %s, end='')
s = ", "
print("0x%08xu" % x, end='')
print(",\n", end='')
bitwords = [0] * int(bitword_count)
else:
x = int(d/32)
y = int(d%32)
bitwords[x] = bitwords[x] | (1 << y)
print("};\n")
# Output the main UCD tables.
print("/* These are the main two-stage UCD tables. The fields in each record are:")
print("script (8 bits), character type (8 bits), grapheme break property (8 bits),")
print("offset to multichar other cases or zero (8 bits), offset to other case")
print("or zero (32 bits, signed), script extension (16 bits, signed), bidi class")
print("(8 bits), and a dummy 8-bit field to make the whole thing a multiple")
print("of 4 bytes. */\n")
print_records(records, record_size)
print_table(min_stage1, 'PRIV(ucd_stage1)')
print_table(min_stage2, 'PRIV(ucd_stage2)', min_block_size)
print("#if UCD_BLOCK_SIZE != %d" % min_block_size)
print("#error Please correct UCD_BLOCK_SIZE in pcre2_internal.h")
print("#endif")
print("#endif /* SUPPORT_UNICODE */")
print()
print("#endif /* PCRE2_PCRE2TEST */")
# This code was part of the original contribution, but is commented out as it
# was never used. A two-stage table has sufficed.
"""
# Three-stage tables:
# Find the optimum block size for 3-stage table
min_size = sys.maxint
for stage3_block in [2 ** i for i in range(2,6)]:
stage_i, stage3 = compress_table(table, stage3_block)
for stage2_block in [2 ** i for i in range(5,10)]:
size = len(records) * 4
stage1, stage2 = compress_table(stage_i, stage2_block)
size += get_tables_size(stage1, stage2, stage3)
# print "/* %5d / %3d => %5d bytes */" % (stage2_block, stage3_block, size)
if size < min_size:
min_size = size
min_stage1, min_stage2, min_stage3 = stage1, stage2, stage3
min_stage2_block, min_stage3_block = stage2_block, stage3_block
print "/* Total size: %d bytes" % min_size */
print_records(records)
print_table(min_stage1, 'ucd_stage1')
print_table(min_stage2, 'ucd_stage2', min_stage2_block)
print_table(min_stage3, 'ucd_stage3', min_stage3_block)
"""

143
maint/README
View File

@ -16,59 +16,66 @@ and also contains some notes for maintainers. Its contents are:
Files in the maint directory
============================
GenerateUtt.py A Python script to generate part of the pcre2_tables.c file
that contains Unicode script names in a long string with
offsets, which is tedious to maintain by hand.
GenerateCommon.py
A Python module containing data and functions that are used by the other
Generate scripts. Each o
ManyConfigTests A shell script that runs "configure, make, test" a number of
times with different configuration settings.
GenerateUcd.py
A Python script that generates the file pcre2_ucd.c from GenerateCommon.py
and Unicode data files, which are themselves downloaded from the Unicode web
site. The generated file contains the tables for a 2-stage lookup of Unicode
properties, along with some auxiliary tables.
MultiStage2.py A Python script that generates the file pcre2_ucd.c from eight
Unicode data files, which are themselves downloaded from the
Unicode web site. Run this script in the "maint" directory.
The generated file is written to stdout. It contains the
tables for a 2-stage lookup of Unicode properties, along with
some auxiliary tables.
GenerateUcpHeader.py
A Python script that generates the file pcre2_ucp.h from GenerateCommon.py
and Unicode data files. The generated file defines constants for various
Unicode property values.
GenerateUcpTables.py
A Python script that generates the file pcre2_ucptables.c from
GenerateCommon.py and Unicode data files. The generated file contains tables
for looking up Unicode properties.
ManyConfigTests
A shell script that runs "configure, make, test" a number of times with
different configuration settings.
pcre2_chartables.c.non-standard
This is a set of character tables that came from a Windows
system. It has characters greater than 128 that are set as
spaces, amongst other things. I kept it so that it can be
used for testing from time to time.
This is a set of character tables that came from a Windows system. It has
characters greater than 128 that are set as spaces, amongst other things. I
kept it so that it can be used for testing from time to time.
README This file.
README
This file.
Unicode.tables The files in this directory were downloaded from the Unicode
web site. They contain information about Unicode characters
and scripts. The ones used by the MultiStage2.py script are
CaseFolding.txt, DerivedBidiClass.txt,
DerivedGeneralCategory.txt, PropList.txt, Scripts.txt,
ScriptExtensions.txt, GraphemeBreakProperty.txt, and
emoji-data.txt. I've kept UnicodeData.txt (which is no longer
used by the script) because it is useful occasionally for
manually looking up the details of certain characters.
However, note that character names in this file such as
"Arabic sign sanah" do NOT mean that the character is in a
Unicode.tables
The files in this directory were downloaded from the Unicode web site. They
contain information about Unicode characters and scripts, and are used by the
Generate scripts. There is also UnicodeData.txt, which is no longer used by
any script, because it is useful occasionally for manually looking up the
details of certain characters. However, note that character names in this
file such as "Arabic sign sanah" do NOT mean that the character is in a
particular script (in this case, Arabic). Scripts.txt and
ScriptExtensions.txt are where to look for script information.
ucptest.c A short C program for testing the Unicode property macros
that do lookups in the pcre2_ucd.c data, mainly useful after
rebuilding the Unicode property table. Compile and run this in
the "maint" directory (see comments at its head). This program
can also be used to find characters with specific properties.
ucptest.c
A short C program for testing the Unicode property macros that do lookups in
the pcre2_ucd.c data, mainly useful after rebuilding the Unicode property
table. Compile and run this in the "maint" directory (see comments at its
head). This program can also be used to find characters with specific
properties.
ucptestdata A directory containing four files, testinput{1,2} and
testoutput{1,2}, for use in conjunction with the ucptest
program.
ucptestdata
A directory containing four files, testinput{1,2} and testoutput{1,2}, for
use in conjunction with the ucptest program.
utf8.c A short, freestanding C program for converting a Unicode code
point into a sequence of bytes in the UTF-8 encoding, and vice
versa. If its argument is a hex number such as 0x1234, it
outputs a list of the equivalent UTF-8 bytes. If its argument
is a sequence of concatenated UTF-8 bytes (e.g. e188b4) it
treats them as a UTF-8 character and outputs the equivalent
code point in hex. See comments at its head for details.
utf8.c
A short, freestanding C program for converting a Unicode code point into a
sequence of bytes in the UTF-8 encoding, and vice versa. If its argument is a
hex number such as 0x1234, it outputs a list of the equivalent UTF-8 bytes.
If its argument is a sequence of concatenated UTF-8 bytes (e.g. e188b4) it
treats them as a UTF-8 character and outputs the equivalent code point in
hex. See comments at its head for details.
Updating to a new Unicode release
@ -76,33 +83,43 @@ Updating to a new Unicode release
When there is a new release of Unicode, the files in Unicode.tables must be
refreshed from the web site. If the new version of Unicode adds new character
scripts, the source file pcre2_ucp.h and both the MultiStage2.py and the
GenerateUtt.py scripts must be edited to add the new names. I have been adding
each new group at the end of the relevant list, with a comment. Note also that
both the pcre2syntax.3 and pcre2pattern.3 man pages contain lists of Unicode
script names.
scripts, the lists in GenerateCommon.py must be updated. I have been adding
each new group at the end of the relevant list, with a comment.
MultiStage2.py has two lists: the full names and the abbreviations that are
found in the ScriptExtensions.txt file. A list of script names and their
abbreviations can be found in the PropertyValueAliases.txt file on the
NOTE: Both the pcre2syntax.3 and pcre2pattern.3 man pages contain lists of
supported Unicode scripts that also have to be updated. These lists are in
alphabetical order.
There are two lists in GenerateCommon.py: the full names and the abbreviations
that are found in the ScriptExtensions.txt file. A list of script names and
their abbreviations can be found in the PropertyValueAliases.txt file on the
Unicode web site. There is also a Wikipedia page that lists them, and notes the
Unicode version in which they were introduced:
https://en.wikipedia.org/wiki/Unicode_scripts#Table_of_Unicode_scripts
Once the script name lists have been updated, MultiStage2.py can be run to
generate a new version of pcre2_ucd.c, and GenerateUtt.py can be run to
generate the tricky tables for inclusion in pcre2_tables.c (which must be
hand-edited). If MultiStage2.py gives the error "ValueError: list.index(x): x
not in list", the cause is usually a missing (or misspelt) name in one of the
lists of scripts.
Once the script name lists have been updated, the three generator scripts can
be run from within the maint directory. If you get the error "ValueError:
list.index(x): x not in list", the cause is usually a missing (or misspelt)
name in one of the lists. You can give an output file name as an argument, but
by default:
The ucptest program can be compiled and used to check that the new tables in
pcre2_ucd.c work properly, using the data files in ucptestdata to check a
number of test characters. It used to be necessary to update the source
ucptest.c whenever new Unicode scripts were added, but this is no longer
required because that program now uses the lists in the PCRE2 source. However,
adding a few tests for new scripts to the files in ucptestdata is a good idea.
GenerateUcd.py creates pcre2_ucd.c )
GenerateUcpHeader.py creates pcre2_ucp.h ) in the current directory
GenerateUcpTables.py creates pcre2_ucptables.c )
These files can be compared against the existing versions in the src directory
to check on any changes before replacing the old files, but you can generate
directly into the final location by running
./GenerateUcd.py ../src/pcre2_ucd.c
./GenerateUcpHeader.py ../src/pcre2_ucp.h
./GenerateUcpTables.py ../src/pcre2_ucptables.c
The ucptest program can be compiled and used to check that the new tables work
properly, using the data files in ucptestdata to check a number of test
characters. See the comments at the start of ucptest.c. If there are new
scripts, adding a few tests to the files in ucptestdata is a good idea.
Preparing for a PCRE2 release
@ -440,4 +457,4 @@ years.
Philip Hazel
Email local part: Philip.Hazel
Email domain: gmail.com
Last updated: 05 December 2021
Last updated: 26 December 2021

4
maint/ucptest.c
View File

@ -172,7 +172,7 @@ static const unsigned char *gb_names[] = {
US"T", US"Hangul syllable type T",
US"LV", US"Hangul syllable type LV",
US"LVT", US"Hangul syllable type LVT",
US"RegionalIndicator", US"",
US"Regional_Indicator", US"",
US"Other", US"",
US"ZWJ", US"zero width joiner",
US"Extended_Pictographic", US""
@ -399,7 +399,7 @@ switch(gbprop)
case ucp_gbT: graphbreak = US"Hangul syllable type T"; break;
case ucp_gbLV: graphbreak = US"Hangul syllable type LV"; break;
case ucp_gbLVT: graphbreak = US"Hangul syllable type LVT"; break;
case ucp_gbRegionalIndicator:
case ucp_gbRegional_Indicator:
graphbreak = US"Regional Indicator"; break;
case ucp_gbOther: graphbreak = US"Other"; break;
case ucp_gbZWJ: graphbreak = US"Zero Width Joiner"; break;

6
src/pcre2_extuni.c
View File

@ -7,7 +7,7 @@ and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel
Original API code Copyright (c) 1997-2012 University of Cambridge
New API code Copyright (c) 2016-2019 University of Cambridge
New API code Copyright (c) 2016-2021 University of Cambridge
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
@ -105,7 +105,7 @@ while (eptr < end_subject)
/* Not breaking between Regional Indicators is allowed only if there
are an even number of preceding RIs. */
if (lgb == ucp_gbRegionalIndicator && rgb == ucp_gbRegionalIndicator)
if (lgb == ucp_gbRegional_Indicator && rgb == ucp_gbRegional_Indicator)
{
int ricount = 0;
PCRE2_SPTR bptr = eptr - 1;
@ -123,7 +123,7 @@ while (eptr < end_subject)
}
else
c = *bptr;
if (UCD_GRAPHBREAK(c) != ucp_gbRegionalIndicator) break;
if (UCD_GRAPHBREAK(c) != ucp_gbRegional_Indicator) break;
ricount++;
}
if ((ricount & 1) != 0) break; /* Grapheme break required */

14
src/pcre2_jit_compile.c
View File

@ -8,7 +8,7 @@ and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel
This module by Zoltan Herczeg
Original API code Copyright (c) 1997-2012 University of Cambridge
New API code Copyright (c) 2016-2019 University of Cambridge
New API code Copyright (c) 2016-2021 University of Cambridge
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
@ -8379,7 +8379,7 @@ do
/* Not breaking between Regional Indicators is allowed only if there
are an even number of preceding RIs. */
if (lgb == ucp_gbRegionalIndicator && rgb == ucp_gbRegionalIndicator)
if (lgb == ucp_gbRegional_Indicator && rgb == ucp_gbRegional_Indicator)
{
ricount = 0;
bptr = prevcc;
@ -8391,7 +8391,7 @@ do
BACKCHAR(bptr);
GETCHAR(c, bptr);
if (UCD_GRAPHBREAK(c) != ucp_gbRegionalIndicator)
if (UCD_GRAPHBREAK(c) != ucp_gbRegional_Indicator)
break;
ricount++;
@ -8447,7 +8447,7 @@ do
/* Not breaking between Regional Indicators is allowed only if there
are an even number of preceding RIs. */
if (lgb == ucp_gbRegionalIndicator && rgb == ucp_gbRegionalIndicator)
if (lgb == ucp_gbRegional_Indicator && rgb == ucp_gbRegional_Indicator)
{
ricount = 0;
bptr = prevcc;
@ -8457,7 +8457,7 @@ do
{
GETCHARBACK_INVALID(c, bptr, start_subject, break);
if (UCD_GRAPHBREAK(c) != ucp_gbRegionalIndicator)
if (UCD_GRAPHBREAK(c) != ucp_gbRegional_Indicator)
break;
ricount++;
@ -8515,7 +8515,7 @@ while (cc < end_subject)
/* Not breaking between Regional Indicators is allowed only if there
are an even number of preceding RIs. */
if (lgb == ucp_gbRegionalIndicator && rgb == ucp_gbRegionalIndicator)
if (lgb == ucp_gbRegional_Indicator && rgb == ucp_gbRegional_Indicator)
{
ricount = 0;
bptr = cc - 1;
@ -8530,7 +8530,7 @@ while (cc < end_subject)
break;
#endif /* PCRE2_CODE_UNIT_WIDTH == 32 */
if (UCD_GRAPHBREAK(c) != ucp_gbRegionalIndicator) break;
if (UCD_GRAPHBREAK(c) != ucp_gbRegional_Indicator) break;
ricount++;
}

4
src/pcre2_tables.c
View File

@ -193,7 +193,7 @@ const uint32_t PRIV(ucp_gbtable)[] = {
ESZ|(1u<<ucp_gbPrepend)| /* 4 Prepend */
(1u<<ucp_gbL)|(1u<<ucp_gbV)|(1u<<ucp_gbT)|
(1u<<ucp_gbLV)|(1u<<ucp_gbLVT)|(1u<<ucp_gbOther)|
(1u<<ucp_gbRegionalIndicator),
(1u<<ucp_gbRegional_Indicator),
ESZ, /* 5 SpacingMark */
ESZ|(1u<<ucp_gbL)|(1u<<ucp_gbV)|(1u<<ucp_gbLV)| /* 6 L */
(1u<<ucp_gbLVT),
@ -201,7 +201,7 @@ const uint32_t PRIV(ucp_gbtable)[] = {
ESZ|(1u<<ucp_gbT), /* 8 T */
ESZ|(1u<<ucp_gbV)|(1u<<ucp_gbT), /* 9 LV */
ESZ|(1u<<ucp_gbT), /* 10 LVT */
(1u<<ucp_gbRegionalIndicator), /* 11 RegionalIndicator */
(1u<<ucp_gbRegional_Indicator), /* 11 Regional Indicator */
ESZ, /* 12 Other */
ESZ, /* 13 ZWJ */
ESZ|(1u<<ucp_gbExtended_Pictographic) /* 14 Extended Pictographic */

148
src/pcre2_ucd.c
View File

@ -1,36 +1,71 @@
/* This module is generated by the maint/MultiStage2.py script.
Do not modify it by hand. Instead modify the script and run it
to regenerate this code.
/*************************************************
* Perl-Compatible Regular Expressions *
*************************************************/
As well as being part of the PCRE2 library, this module is #included
by the pcre2test program, which redefines the PRIV macro to change
table names from _pcre2_xxx to xxxx, thereby avoiding name clashes
with the library. At present, just one of these tables is actually
needed. */
/* PCRE is a library of functions to support regular expressions whose syntax
and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel
Original API code Copyright (c) 1997-2012 University of Cambridge
New API code Copyright (c) 2016-2021 University of Cambridge
This module is auto-generated from Unicode data files. DO NOT EDIT MANUALLY!
Instead, modify the maint/GenerateUcd.py script and run it to generate
a new version of this code.
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the University of Cambridge nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
-----------------------------------------------------------------------------
*/
/* This file contains tables of Unicode properties that are extracted from
Unicode data files. See the comments at the start of maint/GenerateUcd.py for
details.
As well as being part of the PCRE2 library, this file is #included by the
pcre2test program, which redefines the PRIV macro to change table names from
_pcre2_xxx to xxxx, thereby avoiding name clashes with the library. At present,
just one of these tables is actually needed. When compiling the library, some
headers are needed. */
#ifndef PCRE2_PCRE2TEST
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "pcre2_internal.h"
#endif /* PCRE2_PCRE2TEST */
/* Unicode character database. */
/* This file was autogenerated by the MultiStage2.py script. */
/* Total size: 104480 bytes, block size: 128. */
/* The tables herein are needed only when UCP support is built,
and in PCRE2 that happens automatically with UTF support.
This module should not be referenced otherwise, so
it should not matter whether it is compiled or not. However
a comment was received about space saving - maybe the guy linked
all the modules rather than using a library - so we include a
condition to cut out the tables when not needed. But don't leave
a totally empty module because some compilers barf at that.
Instead, just supply some small dummy tables. */
/* The tables herein are needed only when UCP support is built, and in PCRE2
that happens automatically with UTF support. This module should not be
referenced otherwise, so it should not matter whether it is compiled or not.
However a comment was received about space saving - maybe the guy linked all
the modules rather than using a library - so we include a condition to cut out
the tables when not needed. But don't leave a totally empty module because some
compilers barf at that. Instead, just supply some small dummy tables. */
#ifndef SUPPORT_UNICODE
const ucd_record PRIV(ucd_records)[] = {{0,0,0,0,0,0,0,0 }};
@ -39,11 +74,28 @@ const uint16_t PRIV(ucd_stage2)[] = {0};
const uint32_t PRIV(ucd_caseless_sets)[] = {0};
#else
/* Total size: 104480 bytes, block size: 128. */
const char *PRIV(unicode_version) = "14.0.0";
/* If the 32-bit library is run in non-32-bit mode, character values
greater than 0x10ffff may be encountered. For these we set up a
special record. */
/* When recompiling tables with a new Unicode version, please check the types
in this structure definition with those in pcre2_internal.h (the actual field
names will be different).
typedef struct {
uint8_t property_0;
uint8_t property_1;
uint8_t property_2;
uint8_t property_3;
int32_t property_4;
int16_t property_5;
uint8_t property_6;
uint8_t property_7;
} ucd_record;
*/
/* If the 32-bit library is run in non-32-bit mode, character values greater
than 0x10ffff may be encountered. For these we set up a special record. */
#if PCRE2_CODE_UNIT_WIDTH == 32
const ucd_record PRIV(dummy_ucd_record)[] = {{
@ -54,26 +106,10 @@ const ucd_record PRIV(dummy_ucd_record)[] = {{
0, /* other case */
ucp_Unknown, /* script extension */
ucp_bidiL, /* bidi class */
0, /* dummy filler */
0 /* dummy filler */
}};
#endif
/* When recompiling tables with a new Unicode version, please check the
types in this structure definition from pcre2_internal.h (the actual
field names will be different):
typedef struct {
uint8_t property_0;
uint8_t property_1;
uint8_t property_2;
uint8_t property_3;
pcre_int32 property_4;
pcre_int16 property_5;
uint8_t property_6;
uint8_t property_7;
} ucd_record;
*/
/* This table contains lists of characters that are caseless sets of
more than one character. Each list is terminated by NOTACHAR. */
@ -108,14 +144,14 @@ const uint32_t PRIV(ucd_caseless_sets)[] = {
0x1c88, 0xa64a, 0xa64b, NOTACHAR,
};
/* When #included in pcre2test, we don't need the table of digit
sets, nor the the large main UCD tables. */
/* When #included in pcre2test, we don't need the table of digit sets, nor the
the large main UCD tables. */
#ifndef PCRE2_PCRE2TEST
/* This table lists the code points for the '9' characters in each
set of decimal digits. It is used to ensure that all the digits in
a script run come from the same set. */
/* This table lists the code points for the '9' characters in each set of
decimal digits. It is used to ensure that all the digits in a script run come
from the same set. */
const uint32_t PRIV(ucd_digit_sets)[] = {
66, /* Number of subsequent values */
@ -130,8 +166,7 @@ const uint32_t PRIV(ucd_digit_sets)[] = {
0x1e959, 0x1fbf9,
};
/* This vector is a list of script bitsets for the Script Extension
property. */
/* This vector is a list of script bitsets for the Script Extension property. */
const uint32_t PRIV(ucd_script_sets)[] = {
0x00000000u, 0x00000000u, 0x00000000u, 0x00000000u, 0x00000000u, 0x00000000u,
@ -193,10 +228,9 @@ const uint32_t PRIV(ucd_script_sets)[] = {
/* These are the main two-stage UCD tables. The fields in each record are:
script (8 bits), character type (8 bits), grapheme break property (8 bits),
offset to multichar other cases or zero (8 bits), offset to other case
or zero (32 bits, signed), script extension (16 bits, signed), bidi class
(8 bits), and a dummy 8-bit field to make the whole thing a multiple
of 4 bytes. */
offset to multichar other cases or zero (8 bits), offset to other case or zero
(32 bits, signed), script extension (16 bits, signed), bidi class (8 bits), and
a dummy 8-bit field to make the whole thing a multiple of 4 bytes. */
const ucd_record PRIV(ucd_records)[] = { /* 12576 bytes, record size 12 */
{ 10, 0, 2, 0, 0, 10, 3, 0, }, /* 0 */
@ -1797,6 +1831,7 @@ const uint16_t PRIV(ucd_stage1)[] = { /* 17408 bytes */
};
const uint16_t PRIV(ucd_stage2)[] = { /* 74496 bytes, block = 128 */
/* block 0 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 1, 3, 4, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 5, 1,
@ -4706,7 +4741,6 @@ const uint16_t PRIV(ucd_stage2)[] = { /* 74496 bytes, block = 128 */
719,719,719,719,719,719,719,719,719,719,719,719,719,719,719,719,
719,719,719,719,719,719,719,719,719,719,719,719,719,719,719,719,
719,719,719,719,719,719,719,719,719,719,719,719,719,719,723,723,
};
#if UCD_BLOCK_SIZE != 128
@ -4715,3 +4749,5 @@ const uint16_t PRIV(ucd_stage2)[] = { /* 74496 bytes, block = 128 */
#endif /* SUPPORT_UNICODE */
#endif /* PCRE2_PCRE2TEST */
/* End of pcre2_ucd.c */

56
src/pcre2_ucp.h
View File

@ -9,6 +9,10 @@ and semantics are as close as possible to those of the Perl 5 language.
Original API code Copyright (c) 1997-2012 University of Cambridge
New API code Copyright (c) 2016-2021 University of Cambridge
This module is auto-generated from Unicode data files. DO NOT EDIT MANUALLY!
Instead, modify the maint/GenerateUcpHeader.py script and run it to generate
a new version of this code.
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
@ -38,31 +42,27 @@ POSSIBILITY OF SUCH DAMAGE.
-----------------------------------------------------------------------------
*/
#ifndef PCRE2_UCP_H_IDEMPOTENT_GUARD
#define PCRE2_UCP_H_IDEMPOTENT_GUARD
/* This file contains definitions of the property values that are returned by
the UCD access macros. New values that are added for new releases of Unicode
should always be at the end of each enum, for backwards compatibility.
/* This file contains definitions of the Unicode property values that are
returned by the UCD access macros and used throughout PCRE2.
IMPORTANT: Note also that the specific numeric values of the enums have to be
the same as the values that are generated by the maint/MultiStage2.py script,
where the equivalent property descriptive names are listed in vectors.
ALSO: The specific values of the first two enums are assumed for the table
called catposstab in pcre2_compile.c. */
IMPORTANT: The specific values of the first two enums (general and particular
character categories) are assumed by the table called catposstab in the file
pcre2_auto_possess.c. They are unlikely to change, but should be checked after
an update. */
/* These are the general character categories. */
enum {
ucp_C, /* Other */
ucp_L, /* Letter */
ucp_M, /* Mark */
ucp_N, /* Number */
ucp_P, /* Punctuation */
ucp_S, /* Symbol */
ucp_Z /* Separator */
ucp_C,
ucp_L,
ucp_M,
ucp_N,
ucp_P,
ucp_S,
ucp_Z,
};
/* These are the particular character categories. */
@ -97,7 +97,7 @@ enum {
ucp_So, /* Other symbol */
ucp_Zl, /* Line separator */
ucp_Zp, /* Paragraph separator */
ucp_Zs /* Space separator */
ucp_Zs, /* Space separator */
};
/* These are the bidi class values. */
@ -125,7 +125,7 @@ enum {
ucp_bidiRLI, /* Right to left isolate */
ucp_bidiRLO, /* Right to left override */
ucp_bidiS, /* Segment separator */
ucp_bidiWS /* White space */
ucp_bidiWS, /* White space */
};
/* These are grapheme break properties. The Extended Pictographic property
@ -143,13 +143,13 @@ enum {
ucp_gbT, /* 8 Hangul syllable type T */
ucp_gbLV, /* 9 Hangul syllable type LV */
ucp_gbLVT, /* 10 Hangul syllable type LVT */
ucp_gbRegionalIndicator, /* 11 */
ucp_gbRegional_Indicator, /* 11 */
ucp_gbOther, /* 12 */
ucp_gbZWJ, /* 13 */
ucp_gbExtended_Pictographic /* 14 */
ucp_gbExtended_Pictographic, /* 14 */
};
/* These are the script identifications. */
/* These are the script identifications, additions happen at the end. */
enum {
ucp_Unknown,
@ -214,13 +214,11 @@ enum {
ucp_Tifinagh,
ucp_Ugaritic,
ucp_Yi,
/* New for Unicode 5.0 */
ucp_Balinese,
ucp_Cuneiform,
ucp_Nko,
ucp_Phags_Pa,
ucp_Phoenician,
/* New for Unicode 5.1 */
ucp_Carian,
ucp_Cham,
ucp_Kayah_Li,
@ -232,7 +230,6 @@ enum {
ucp_Saurashtra,
ucp_Sundanese,
ucp_Vai,
/* New for Unicode 5.2 */
ucp_Avestan,
ucp_Bamum,
ucp_Egyptian_Hieroglyphs,
@ -248,11 +245,9 @@ enum {
ucp_Samaritan,
ucp_Tai_Tham,
ucp_Tai_Viet,
/* New for Unicode 6.0.0 */
ucp_Batak,
ucp_Brahmi,
ucp_Mandaic,
/* New for Unicode 6.1.0 */
ucp_Chakma,
ucp_Meroitic_Cursive,
ucp_Meroitic_Hieroglyphs,
@ -260,7 +255,6 @@ enum {
ucp_Sharada,
ucp_Sora_Sompeng,
ucp_Takri,
/* New for Unicode 7.0.0 */
ucp_Bassa_Vah,
ucp_Caucasian_Albanian,
ucp_Duployan,
@ -284,14 +278,12 @@ enum {
ucp_Siddham,
ucp_Tirhuta,
ucp_Warang_Citi,
/* New for Unicode 8.0.0 */
ucp_Ahom,
ucp_Anatolian_Hieroglyphs,
ucp_Hatran,
ucp_Multani,
ucp_Old_Hungarian,
ucp_SignWriting,
/* New for Unicode 10.0.0 (no update since 8.0.0) */
ucp_Adlam,
ucp_Bhaiksuki,
ucp_Marchen,
@ -302,7 +294,6 @@ enum {
ucp_Nushu,
ucp_Soyombo,
ucp_Zanabazar_Square,
/* New for Unicode 11.0.0 */
ucp_Dogra,
ucp_Gunjala_Gondi,
ucp_Hanifi_Rohingya,
@ -310,17 +301,14 @@ enum {
ucp_Medefaidrin,
ucp_Old_Sogdian,
ucp_Sogdian,
/* New for Unicode 12.0.0 */
ucp_Elymaic,
ucp_Nandinagari,
ucp_Nyiakeng_Puachue_Hmong,
ucp_Wancho,
/* New for Unicode 13.0.0 */
ucp_Chorasmian,
ucp_Dives_Akuru,
ucp_Khitan_Small_Script,
ucp_Yezidi,
/* New for Unicode 14.0.0 */
ucp_Cypro_Minoan,
ucp_Old_Uyghur,
ucp_Tangsa,

26
src/pcre2_ucptables.c
View File

@ -9,6 +9,10 @@ and semantics are as close as possible to those of the Perl 5 language.
Original API code Copyright (c) 1997-2012 University of Cambridge
New API code Copyright (c) 2016-2021 University of Cambridge
This module is auto-generated from Unicode data files. DO NOT EDIT MANUALLY!
Instead, modify the maint/GenerateUcpTables.py script and run it to generate
a new version of this code.
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
@ -38,10 +42,6 @@ POSSIBILITY OF SUCH DAMAGE.
-----------------------------------------------------------------------------
*/
/* This module is auto-generated from the Unicode data files, and #included at
the end of pcre2_tables.c. Do not edit by hand. */
#ifdef SUPPORT_UNICODE
/* The PRIV(utt)[] table below translates Unicode property names into type and
@ -49,21 +49,9 @@ code values. It is searched by binary chop, so must be in collating sequence of
name. Originally, the table contained pointers to the name strings in the first
field of each entry. However, that leads to a large number of relocations when
a shared library is dynamically loaded. A significant reduction is made by
putting all the names into a single, large string and then using offsets in the
table itself. Maintenance is more error-prone, but frequent changes to this
data are unlikely.
July 2008: There is now a script called maint/GenerateUtt.py that can be used
to generate this data automatically instead of maintaining it by hand.
The script was updated in March 2009 to generate a new EBCDIC-compliant
version. Like all other character and string literals that are compared against
the regular expression pattern, we must use STR_ macros instead of literal
strings to make sure that UTF-8 support works on EBCDIC platforms.
December 2021: the script now ensures that all letters are lower cased, and
that underscores are removed, in accordance with the "loose matching" rules
that Unicode advises and Perl uses. */
putting all the names into a single, large string and using offsets instead.
All letters are lower cased, and underscores are removed, in accordance with
the "loose matching" rules that Unicode advises and Perl uses. */
#define STRING_adlam0 STR_a STR_d STR_l STR_a STR_m "\0"
#define STRING_ahom0 STR_a STR_h STR_o STR_m "\0"