mirror of https://github.com/postgres/postgres
Introduce unicode_version(), icu_unicode_version(), and unicode_assigned(). The latter requires introducing a new lookup table for the Unicode General Category, which is generated along with the other Unicode lookup tables. Discussion: https://postgr.es/m/CA+TgmoYzYR-yhU6k1XFCADeyj=Oyz2PkVsa3iKv+keM8wp-F_A@mail.gmail.com Reviewed-by: Peter Eisentrautpull/143/head
Jeff Davis
2 years ago
parent
7021d3b176
commit
a02b37fc08
@ -0,0 +1,108 @@ |
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/*-------------------------------------------------------------------------
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* category_test.c |
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* Program to test Unicode general category functions. |
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* |
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* Portions Copyright (c) 2017-2023, PostgreSQL Global Development Group |
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* |
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* IDENTIFICATION |
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* src/common/unicode/category_test.c |
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* |
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*------------------------------------------------------------------------- |
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*/ |
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#include "postgres_fe.h" |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#ifdef USE_ICU |
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#include <unicode/uchar.h> |
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#endif |
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#include "common/unicode_category.h" |
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#include "common/unicode_version.h" |
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/*
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* Parse version into integer for easy comparison. |
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*/ |
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#ifdef USE_ICU |
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static int |
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parse_unicode_version(const char *version) |
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{ |
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int n, |
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major, |
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minor; |
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n = sscanf(version, "%d.%d", &major, &minor); |
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Assert(n == 2); |
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Assert(minor < 100); |
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return major * 100 + minor; |
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} |
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#endif |
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/*
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* Exhaustively test that the Unicode category for each codepoint matches that |
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* returned by ICU. |
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*/ |
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int |
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main(int argc, char **argv) |
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{ |
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#ifdef USE_ICU |
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int pg_unicode_version = parse_unicode_version(PG_UNICODE_VERSION); |
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int icu_unicode_version = parse_unicode_version(U_UNICODE_VERSION); |
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int pg_skipped_codepoints = 0; |
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int icu_skipped_codepoints = 0; |
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printf("Postgres Unicode Version:\t%s\n", PG_UNICODE_VERSION); |
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printf("ICU Unicode Version:\t\t%s\n", U_UNICODE_VERSION); |
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for (UChar32 code = 0; code <= 0x10ffff; code++) |
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{ |
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uint8_t pg_category = unicode_category(code); |
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uint8_t icu_category = u_charType(code); |
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if (pg_category != icu_category) |
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{ |
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/*
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* A version mismatch means that some assigned codepoints in the |
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* newer version may be unassigned in the older version. That's |
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* OK, though the test will not cover those codepoints marked |
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* unassigned in the older version (that is, it will no longer be |
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* an exhaustive test). |
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*/ |
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if (pg_category == PG_U_UNASSIGNED && |
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pg_unicode_version < icu_unicode_version) |
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pg_skipped_codepoints++; |
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else if (icu_category == PG_U_UNASSIGNED && |
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icu_unicode_version < pg_unicode_version) |
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icu_skipped_codepoints++; |
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else |
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{ |
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printf("FAILURE for codepoint %06x\n", code); |
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printf("Postgres category: %02d %s %s\n", pg_category, |
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unicode_category_abbrev(pg_category), |
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unicode_category_string(pg_category)); |
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printf("ICU category: %02d %s %s\n", icu_category, |
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unicode_category_abbrev(icu_category), |
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unicode_category_string(icu_category)); |
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printf("\n"); |
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exit(1); |
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} |
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} |
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} |
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if (pg_skipped_codepoints > 0) |
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printf("Skipped %d codepoints unassigned in Postgres due to Unicode version mismatch.\n", |
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pg_skipped_codepoints); |
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if (icu_skipped_codepoints > 0) |
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printf("Skipped %d codepoints unassigned in ICU due to Unicode version mismatch.\n", |
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icu_skipped_codepoints); |
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printf("category_test: All tests successful!\n"); |
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exit(0); |
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#else |
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printf("ICU support required for test; skipping.\n"); |
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exit(0); |
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#endif |
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} |
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@ -0,0 +1,204 @@ |
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#!/usr/bin/perl |
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# |
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# Generate a code point category table and its lookup utilities, using |
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# Unicode data files as input. |
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# |
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# Input: UnicodeData.txt |
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# Output: unicode_category_table.h |
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# |
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# Copyright (c) 2000-2023, PostgreSQL Global Development Group |
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use strict; |
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use warnings; |
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use Getopt::Long; |
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use FindBin; |
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use lib "$FindBin::RealBin/../../tools/"; |
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my $CATEGORY_UNASSIGNED = 'Cn'; |
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my $output_path = '.'; |
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GetOptions('outdir:s' => \$output_path); |
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my $output_table_file = "$output_path/unicode_category_table.h"; |
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my $FH; |
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# Read entries from UnicodeData.txt into a list of codepoint ranges |
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# and their general category. |
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my @category_ranges = (); |
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my $range_start = undef; |
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my $range_end = undef; |
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my $range_category = undef; |
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# If between a "<..., First>" entry and a "<..., Last>" entry, the gap in |
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# codepoints represents a range, and $gap_category is equal to the |
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# category for both (which must match). Otherwise, the gap represents |
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# unassigned code points. |
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my $gap_category = undef; |
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open($FH, '<', "$output_path/UnicodeData.txt") |
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or die "Could not open $output_path/UnicodeData.txt: $!."; |
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while (my $line = <$FH>) |
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{ |
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my @elts = split(';', $line); |
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my $code = hex($elts[0]); |
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my $name = $elts[1]; |
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my $category = $elts[2]; |
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die "codepoint out of range" if $code > 0x10FFFF; |
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die "unassigned codepoint in UnicodeData.txt" if $category eq $CATEGORY_UNASSIGNED; |
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if (!defined($range_start)) { |
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my $code_str = sprintf "0x%06x", $code; |
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die if defined($range_end) || defined($range_category) || defined($gap_category); |
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die "unexpected first entry <..., Last>" if ($name =~ /Last>/); |
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die "expected 0x000000 for first entry, got $code_str" if $code != 0x000000; |
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# initialize |
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$range_start = $code; |
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$range_end = $code; |
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$range_category = $category; |
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if ($name =~ /<.*, First>$/) { |
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$gap_category = $category; |
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} else { |
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$gap_category = $CATEGORY_UNASSIGNED; |
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} |
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next; |
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} |
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# Gap in codepoints detected. If it's a different category than |
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# the current range, emit the current range and initialize a new |
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# range representing the gap. |
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if ($range_end + 1 != $code && $range_category ne $gap_category) { |
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push(@category_ranges, {start => $range_start, end => $range_end, category => $range_category}); |
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$range_start = $range_end + 1; |
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$range_end = $code - 1; |
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$range_category = $gap_category; |
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} |
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# different category; new range |
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if ($range_category ne $category) { |
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push(@category_ranges, {start => $range_start, end => $range_end, category => $range_category}); |
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$range_start = $code; |
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$range_end = $code; |
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$range_category = $category; |
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} |
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if ($name =~ /<.*, First>$/) { |
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die "<..., First> entry unexpectedly follows another <..., First> entry" |
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if $gap_category ne $CATEGORY_UNASSIGNED; |
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$gap_category = $category; |
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} |
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elsif ($name =~ /<.*, Last>$/) { |
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die "<..., First> and <..., Last> entries have mismatching general category" |
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if $gap_category ne $category; |
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$gap_category = $CATEGORY_UNASSIGNED; |
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} |
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else { |
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die "unexpected entry found between <..., First> and <..., Last>" |
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if $gap_category ne $CATEGORY_UNASSIGNED; |
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} |
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$range_end = $code; |
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} |
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close $FH; |
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die "<..., First> entry with no corresponding <..., Last> entry" |
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if $gap_category ne $CATEGORY_UNASSIGNED; |
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# emit final range |
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push(@category_ranges, {start => $range_start, end => $range_end, category => $range_category}); |
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# emit range for any unassigned code points after last entry |
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if ($range_end < 0x10FFFF) { |
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$range_start = $range_end + 1; |
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$range_end = 0x10FFFF; |
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$range_category = $CATEGORY_UNASSIGNED; |
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push(@category_ranges, {start => $range_start, end => $range_end, category => $range_category}); |
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} |
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my $num_ranges = scalar @category_ranges; |
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# See: https://www.unicode.org/reports/tr44/#General_Category_Values |
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my $categories = { |
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Cn => 'PG_U_UNASSIGNED', |
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Lu => 'PG_U_UPPERCASE_LETTER', |
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Ll => 'PG_U_LOWERCASE_LETTER', |
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Lt => 'PG_U_TITLECASE_LETTER', |
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Lm => 'PG_U_MODIFIER_LETTER', |
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Lo => 'PG_U_OTHER_LETTER', |
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Mn => 'PG_U_NONSPACING_MARK', |
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Me => 'PG_U_ENCLOSING_MARK', |
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Mc => 'PG_U_SPACING_MARK', |
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Nd => 'PG_U_DECIMAL_NUMBER', |
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Nl => 'PG_U_LETTER_NUMBER', |
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No => 'PG_U_OTHER_NUMBER', |
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Zs => 'PG_U_SPACE_SEPARATOR', |
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Zl => 'PG_U_LINE_SEPARATOR', |
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Zp => 'PG_U_PARAGRAPH_SEPARATOR', |
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Cc => 'PG_U_CONTROL', |
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Cf => 'PG_U_FORMAT', |
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Co => 'PG_U_PRIVATE_USE', |
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Cs => 'PG_U_SURROGATE', |
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Pd => 'PG_U_DASH_PUNCTUATION', |
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Ps => 'PG_U_OPEN_PUNCTUATION', |
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Pe => 'PG_U_CLOSE_PUNCTUATION', |
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Pc => 'PG_U_CONNECTOR_PUNCTUATION', |
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Po => 'PG_U_OTHER_PUNCTUATION', |
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Sm => 'PG_U_MATH_SYMBOL', |
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Sc => 'PG_U_CURRENCY_SYMBOL', |
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Sk => 'PG_U_MODIFIER_SYMBOL', |
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So => 'PG_U_OTHER_SYMBOL', |
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Pi => 'PG_U_INITIAL_PUNCTUATION', |
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Pf => 'PG_U_FINAL_PUNCTUATION' |
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}; |
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# Start writing out the output files |
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open my $OT, '>', $output_table_file |
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or die "Could not open output file $output_table_file: $!\n"; |
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print $OT <<HEADER; |
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/*------------------------------------------------------------------------- |
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* |
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* unicode_category_table.h |
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* Category table for Unicode character classification. |
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* |
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* Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group |
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* Portions Copyright (c) 1994, Regents of the University of California |
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* |
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* src/include/common/unicode_category_table.h |
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* |
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*------------------------------------------------------------------------- |
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*/ |
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#include "common/unicode_category.h" |
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/* |
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* File auto-generated by src/common/unicode/generate-unicode_category_table.pl, |
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* do not edit. There is deliberately not an #ifndef PG_UNICODE_CATEGORY_TABLE_H |
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* here. |
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*/ |
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typedef struct |
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{ |
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uint32 first; /* Unicode codepoint */ |
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uint32 last; /* Unicode codepoint */ |
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uint8 category; /* General Category */ |
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} pg_category_range; |
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/* table of Unicode codepoint ranges and their categories */ |
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static const pg_category_range unicode_categories[$num_ranges] = |
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{ |
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HEADER |
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my $firsttime = 1; |
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foreach my $range (@category_ranges) { |
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printf $OT ",\n" unless $firsttime; |
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$firsttime = 0; |
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my $category = $categories->{$range->{category}}; |
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die "category missing: $range->{category}" unless $category; |
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printf $OT "\t{0x%06x, 0x%06x, %s}", $range->{start}, $range->{end}, $category; |
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} |
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print $OT "\n};\n"; |
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@ -0,0 +1,46 @@ |
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#!/usr/bin/perl |
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# |
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# Generate header file with Unicode version used by Postgres. |
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# |
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# Output: unicode_version.h |
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# |
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# Copyright (c) 2000-2023, PostgreSQL Global Development Group |
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use strict; |
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use warnings; |
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use Getopt::Long; |
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use FindBin; |
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use lib "$FindBin::RealBin/../../tools/"; |
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my $output_path = '.'; |
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my $version_str = undef; |
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GetOptions('outdir:s' => \$output_path, 'version:s' => \$version_str); |
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my @version_parts = split /\./, $version_str; |
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my $unicode_version_str = sprintf "%d.%d", $version_parts[0], $version_parts[1]; |
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my $output_file = "$output_path/unicode_version.h"; |
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# Start writing out the output files |
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open my $OT, '>', $output_file |
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or die "Could not open output file $output_file: $!\n"; |
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print $OT <<HEADER; |
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/*------------------------------------------------------------------------- |
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* |
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* unicode_version.h |
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* Unicode version used by Postgres. |
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* |
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* Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group |
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* Portions Copyright (c) 1994, Regents of the University of California |
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* |
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* src/include/common/unicode_version.h |
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* |
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*------------------------------------------------------------------------- |
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*/ |
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#define PG_UNICODE_VERSION "$unicode_version_str" |
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HEADER |
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@ -0,0 +1,195 @@ |
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/*-------------------------------------------------------------------------
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* unicode_category.c |
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* Determine general category of Unicode characters. |
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* |
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* Portions Copyright (c) 2017-2023, PostgreSQL Global Development Group |
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* |
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* IDENTIFICATION |
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* src/common/unicode_category.c |
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* |
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*------------------------------------------------------------------------- |
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*/ |
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#ifndef FRONTEND |
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#include "postgres.h" |
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#else |
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#include "postgres_fe.h" |
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#endif |
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#include "common/unicode_category.h" |
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#include "common/unicode_category_table.h" |
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/*
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* Unicode general category for the given codepoint. |
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*/ |
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pg_unicode_category |
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unicode_category(pg_wchar ucs) |
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{ |
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int min = 0; |
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int mid; |
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int max = lengthof(unicode_categories) - 1; |
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Assert(ucs >= unicode_categories[0].first && |
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ucs <= unicode_categories[max].last); |
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while (max >= min) |
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{ |
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mid = (min + max) / 2; |
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if (ucs > unicode_categories[mid].last) |
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min = mid + 1; |
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else if (ucs < unicode_categories[mid].first) |
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max = mid - 1; |
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else |
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return unicode_categories[mid].category; |
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} |
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Assert(false); |
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return (pg_unicode_category) - 1; |
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} |
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/*
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* Description of Unicode general category. |
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*/ |
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const char * |
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unicode_category_string(pg_unicode_category category) |
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{ |
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switch (category) |
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{ |
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case PG_U_UNASSIGNED: |
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return "Unassigned"; |
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case PG_U_UPPERCASE_LETTER: |
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return "Uppercase_Letter"; |
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case PG_U_LOWERCASE_LETTER: |
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return "Lowercase_Letter"; |
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case PG_U_TITLECASE_LETTER: |
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return "Titlecase_Letter"; |
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case PG_U_MODIFIER_LETTER: |
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return "Modifier_Letter"; |
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case PG_U_OTHER_LETTER: |
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return "Other_Letter"; |
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case PG_U_NONSPACING_MARK: |
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return "Nonspacing_Mark"; |
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case PG_U_ENCLOSING_MARK: |
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return "Enclosing_Mark"; |
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case PG_U_SPACING_MARK: |
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return "Spacing_Mark"; |
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case PG_U_DECIMAL_NUMBER: |
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return "Decimal_Number"; |
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case PG_U_LETTER_NUMBER: |
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return "Letter_Number"; |
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case PG_U_OTHER_NUMBER: |
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return "Other_Number"; |
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case PG_U_SPACE_SEPARATOR: |
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return "Space_Separator"; |
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case PG_U_LINE_SEPARATOR: |
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return "Line_Separator"; |
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case PG_U_PARAGRAPH_SEPARATOR: |
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return "Paragraph_Separator"; |
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case PG_U_CONTROL: |
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return "Control"; |
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case PG_U_FORMAT: |
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return "Format"; |
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case PG_U_PRIVATE_USE: |
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return "Private_Use"; |
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case PG_U_SURROGATE: |
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return "Surrogate"; |
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case PG_U_DASH_PUNCTUATION: |
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return "Dash_Punctuation"; |
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case PG_U_OPEN_PUNCTUATION: |
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return "Open_Punctuation"; |
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case PG_U_CLOSE_PUNCTUATION: |
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return "Close_Punctuation"; |
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case PG_U_CONNECTOR_PUNCTUATION: |
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return "Connector_Punctuation"; |
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case PG_U_OTHER_PUNCTUATION: |
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return "Other_Punctuation"; |
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case PG_U_MATH_SYMBOL: |
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return "Math_Symbol"; |
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case PG_U_CURRENCY_SYMBOL: |
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return "Currency_Symbol"; |
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case PG_U_MODIFIER_SYMBOL: |
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return "Modifier_Symbol"; |
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case PG_U_OTHER_SYMBOL: |
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return "Other_Symbol"; |
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case PG_U_INITIAL_PUNCTUATION: |
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return "Initial_Punctuation"; |
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case PG_U_FINAL_PUNCTUATION: |
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return "Final_Punctuation"; |
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} |
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Assert(false); |
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return "Unrecognized"; /* keep compiler quiet */ |
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} |
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|
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/*
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* Short code for Unicode general category. |
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*/ |
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const char * |
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unicode_category_abbrev(pg_unicode_category category) |
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{ |
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switch (category) |
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{ |
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case PG_U_UNASSIGNED: |
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return "Cn"; |
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case PG_U_UPPERCASE_LETTER: |
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return "Lu"; |
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case PG_U_LOWERCASE_LETTER: |
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return "Ll"; |
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case PG_U_TITLECASE_LETTER: |
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return "Lt"; |
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case PG_U_MODIFIER_LETTER: |
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return "Lm"; |
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case PG_U_OTHER_LETTER: |
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return "Lo"; |
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case PG_U_NONSPACING_MARK: |
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return "Mn"; |
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case PG_U_ENCLOSING_MARK: |
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return "Me"; |
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case PG_U_SPACING_MARK: |
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return "Mc"; |
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case PG_U_DECIMAL_NUMBER: |
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return "Nd"; |
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case PG_U_LETTER_NUMBER: |
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return "Nl"; |
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case PG_U_OTHER_NUMBER: |
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return "No"; |
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case PG_U_SPACE_SEPARATOR: |
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return "Zs"; |
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case PG_U_LINE_SEPARATOR: |
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return "Zl"; |
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case PG_U_PARAGRAPH_SEPARATOR: |
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return "Zp"; |
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case PG_U_CONTROL: |
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return "Cc"; |
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case PG_U_FORMAT: |
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return "Cf"; |
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case PG_U_PRIVATE_USE: |
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return "Co"; |
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case PG_U_SURROGATE: |
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return "Cs"; |
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case PG_U_DASH_PUNCTUATION: |
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return "Pd"; |
||||
case PG_U_OPEN_PUNCTUATION: |
||||
return "Ps"; |
||||
case PG_U_CLOSE_PUNCTUATION: |
||||
return "Pe"; |
||||
case PG_U_CONNECTOR_PUNCTUATION: |
||||
return "Pc"; |
||||
case PG_U_OTHER_PUNCTUATION: |
||||
return "Po"; |
||||
case PG_U_MATH_SYMBOL: |
||||
return "Sm"; |
||||
case PG_U_CURRENCY_SYMBOL: |
||||
return "Sc"; |
||||
case PG_U_MODIFIER_SYMBOL: |
||||
return "Sk"; |
||||
case PG_U_OTHER_SYMBOL: |
||||
return "So"; |
||||
case PG_U_INITIAL_PUNCTUATION: |
||||
return "Pi"; |
||||
case PG_U_FINAL_PUNCTUATION: |
||||
return "Pf"; |
||||
} |
||||
|
||||
Assert(false); |
||||
return "??"; /* keep compiler quiet */ |
||||
} |
||||
@ -0,0 +1,68 @@ |
||||
/*-------------------------------------------------------------------------
|
||||
* |
||||
* unicode_category.h |
||||
* Routines for determining the category of Unicode characters. |
||||
* |
||||
* These definitions can be used by both frontend and backend code. |
||||
* |
||||
* Copyright (c) 2017-2023, PostgreSQL Global Development Group |
||||
* |
||||
* src/include/common/unicode_category.h |
||||
* |
||||
*------------------------------------------------------------------------- |
||||
*/ |
||||
#ifndef UNICODE_CATEGORY_H |
||||
#define UNICODE_CATEGORY_H |
||||
|
||||
#include "mb/pg_wchar.h" |
||||
|
||||
/*
|
||||
* Unicode General Category Values |
||||
* |
||||
* See: https://www.unicode.org/reports/tr44/#General_Category_Values
|
||||
* |
||||
* The Unicode stability policy guarantees: "The enumeration of |
||||
* General_Category property values is fixed. No new values will be |
||||
* added". See: https://www.unicode.org/policies/stability_policy.html |
||||
* |
||||
* Numeric values chosen to match corresponding ICU UCharCategory. |
||||
*/ |
||||
typedef enum pg_unicode_category |
||||
{ |
||||
PG_U_UNASSIGNED = 0, /* Cn */ |
||||
PG_U_UPPERCASE_LETTER = 1, /* Lu */ |
||||
PG_U_LOWERCASE_LETTER = 2, /* Ll */ |
||||
PG_U_TITLECASE_LETTER = 3, /* Lt */ |
||||
PG_U_MODIFIER_LETTER = 4, /* Lm */ |
||||
PG_U_OTHER_LETTER = 5, /* Lo */ |
||||
PG_U_NONSPACING_MARK = 6, /* Mn */ |
||||
PG_U_ENCLOSING_MARK = 7, /* Me */ |
||||
PG_U_SPACING_MARK = 8, /* Mc */ |
||||
PG_U_DECIMAL_NUMBER = 9, /* Nd */ |
||||
PG_U_LETTER_NUMBER = 10, /* Nl */ |
||||
PG_U_OTHER_NUMBER = 11, /* No */ |
||||
PG_U_SPACE_SEPARATOR = 12, /* Zs */ |
||||
PG_U_LINE_SEPARATOR = 13, /* Zl */ |
||||
PG_U_PARAGRAPH_SEPARATOR = 14, /* Zp */ |
||||
PG_U_CONTROL = 15, /* Cc */ |
||||
PG_U_FORMAT = 16, /* Cf */ |
||||
PG_U_PRIVATE_USE = 17, /* Co */ |
||||
PG_U_SURROGATE = 18, /* Cs */ |
||||
PG_U_DASH_PUNCTUATION = 19, /* Pd */ |
||||
PG_U_OPEN_PUNCTUATION = 20, /* Ps */ |
||||
PG_U_CLOSE_PUNCTUATION = 21, /* Pe */ |
||||
PG_U_CONNECTOR_PUNCTUATION = 22, /* Pc */ |
||||
PG_U_OTHER_PUNCTUATION = 23, /* Po */ |
||||
PG_U_MATH_SYMBOL = 24, /* Sm */ |
||||
PG_U_CURRENCY_SYMBOL = 25, /* Sc */ |
||||
PG_U_MODIFIER_SYMBOL = 26, /* Sk */ |
||||
PG_U_OTHER_SYMBOL = 27, /* So */ |
||||
PG_U_INITIAL_PUNCTUATION = 28, /* Pi */ |
||||
PG_U_FINAL_PUNCTUATION = 29 /* Pf */ |
||||
} pg_unicode_category; |
||||
|
||||
extern pg_unicode_category unicode_category(pg_wchar ucs); |
||||
const char *unicode_category_string(pg_unicode_category category); |
||||
const char *unicode_category_abbrev(pg_unicode_category category); |
||||
|
||||
#endif /* UNICODE_CATEGORY_H */ |
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,14 @@ |
||||
/*-------------------------------------------------------------------------
|
||||
* |
||||
* unicode_version.h |
||||
* Unicode version used by Postgres. |
||||
* |
||||
* Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group |
||||
* Portions Copyright (c) 1994, Regents of the University of California |
||||
* |
||||
* src/include/common/unicode_version.h |
||||
* |
||||
*------------------------------------------------------------------------- |
||||
*/ |
||||
|
||||
#define PG_UNICODE_VERSION "15.1" |
||||
Loading…
Reference in new issue