ladybird/Userland/Libraries/LibUnicode/CodeGenerators/GenerateUnicodeData.cpp
Timothy Flynn f5c1bbc00b LibUnicode: Parse UCD Scripts.txt and generate as a Unicode property
There are a couple of minor nuances with parsing script values, compared
to other properties. In Scripts.txt, the UCD file lists the full name of
each script; other properties, like General Category, list the shorter
name in their primary files. This means that the aliases listed in
PropertyValueAliases.txt are reversed for script values.
2021-08-04 13:50:32 +01:00

870 lines
33 KiB
C++

/*
* Copyright (c) 2021, Tim Flynn <trflynn89@pm.me>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/AllOf.h>
#include <AK/Array.h>
#include <AK/CharacterTypes.h>
#include <AK/HashMap.h>
#include <AK/Optional.h>
#include <AK/QuickSort.h>
#include <AK/SourceGenerator.h>
#include <AK/String.h>
#include <AK/StringUtils.h>
#include <AK/Types.h>
#include <AK/Vector.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
// Some code points are excluded from UnicodeData.txt, and instead are part of a "range" of code
// points, as indicated by the "name" field. For example:
// 3400;<CJK Ideograph Extension A, First>;Lo;0;L;;;;;N;;;;;
// 4DBF;<CJK Ideograph Extension A, Last>;Lo;0;L;;;;;N;;;;;
struct CodePointRange {
u32 first;
u32 last;
};
// SpecialCasing source: https://www.unicode.org/Public/13.0.0/ucd/SpecialCasing.txt
// Field descriptions: https://www.unicode.org/reports/tr44/tr44-13.html#SpecialCasing.txt
struct SpecialCasing {
u32 index { 0 };
u32 code_point { 0 };
Vector<u32> lowercase_mapping;
Vector<u32> uppercase_mapping;
Vector<u32> titlecase_mapping;
String locale;
String condition;
};
// PropList source: https://www.unicode.org/Public/13.0.0/ucd/PropList.txt
// Property descriptions: https://www.unicode.org/reports/tr44/tr44-13.html#PropList.txt
// https://www.unicode.org/reports/tr44/tr44-13.html#WordBreakProperty.txt
using PropList = HashMap<String, Vector<CodePointRange>>;
// PropertyAliases source: https://www.unicode.org/Public/13.0.0/ucd/PropertyAliases.txt
struct Alias {
String property;
String alias;
};
// UnicodeData source: https://www.unicode.org/Public/13.0.0/ucd/UnicodeData.txt
// Field descriptions: https://www.unicode.org/reports/tr44/tr44-13.html#UnicodeData.txt
// https://www.unicode.org/reports/tr44/#General_Category_Values
struct CodePointData {
u32 code_point { 0 };
String name;
String general_category;
u8 canonical_combining_class { 0 };
String bidi_class;
String decomposition_type;
Optional<i8> numeric_value_decimal;
Optional<i8> numeric_value_digit;
Optional<i8> numeric_value_numeric;
bool bidi_mirrored { false };
String unicode_1_name;
String iso_comment;
Optional<u32> simple_uppercase_mapping;
Optional<u32> simple_lowercase_mapping;
Optional<u32> simple_titlecase_mapping;
Vector<u32> special_casing_indices;
Vector<StringView> prop_list;
StringView script;
StringView word_break_property;
};
struct UnicodeData {
Vector<SpecialCasing> special_casing;
u32 largest_casing_transform_size { 0 };
u32 largest_special_casing_size { 0 };
Vector<String> locales;
Vector<String> conditions;
Vector<CodePointData> code_point_data;
Vector<CodePointRange> code_point_ranges;
u32 last_contiguous_code_point { 0 };
// The Unicode standard defines General Category values which are not in any UCD file. These
// values are simply unions of other values.
// https://www.unicode.org/reports/tr44/#GC_Values_Table
Vector<String> general_categories;
Vector<Alias> general_category_unions {
{ "Ll | Lu | Lt"sv, "LC"sv },
{ "Lu | Ll | Lt | Lm | Lo"sv, "L"sv },
{ "Mn | Mc | Me"sv, "M"sv },
{ "Nd | Nl | No"sv, "N"sv },
{ "Pc | Pd | Ps | Pe | Pi | Pf | Po"sv, "P"sv },
{ "Sm | Sc | Sk | So"sv, "S"sv },
{ "Zs | Zl | Zp"sv, "Z"sv },
{ "Cc | Cf | Cs | Co"sv, "C"sv }, // FIXME: This union should also contain "Cn" (Unassigned), which we don't parse yet.
};
Vector<Alias> general_category_aliases;
// The Unicode standard defines additional properties (Any, Assigned, ASCII) which are not in
// any UCD file. Assigned is set as the default enum value 0 so "property & Assigned == Assigned"
// is always true. Any is not assigned code points here because this file only parses assigned
// code points, whereas Any will include unassigned code points.
// https://unicode.org/reports/tr18/#General_Category_Property
PropList prop_list {
{ "Any"sv, {} },
{ "ASCII"sv, { { 0, 0x7f } } },
};
Vector<Alias> prop_aliases;
PropList script_list {
{ "Unknown"sv, {} },
};
Vector<Alias> script_aliases;
PropList word_break_prop_list;
};
static constexpr auto s_desired_fields = Array {
"general_category"sv,
"simple_uppercase_mapping"sv,
"simple_lowercase_mapping"sv,
};
static void write_to_file_if_different(Core::File& file, StringView contents)
{
auto const current_contents = file.read_all();
if (StringView { current_contents.bytes() } == contents)
return;
VERIFY(file.seek(0));
VERIFY(file.truncate(0));
VERIFY(file.write(contents));
}
static void parse_special_casing(Core::File& file, UnicodeData& unicode_data)
{
auto parse_code_point_list = [&](auto const& line) {
Vector<u32> code_points;
auto segments = line.split(' ');
for (auto const& code_point : segments)
code_points.append(AK::StringUtils::convert_to_uint_from_hex<u32>(code_point).value());
return code_points;
};
while (file.can_read_line()) {
auto line = file.read_line();
if (line.is_empty() || line.starts_with('#'))
continue;
if (auto index = line.find('#'); index.has_value())
line = line.substring(0, *index);
auto segments = line.split(';', true);
VERIFY(segments.size() == 5 || segments.size() == 6);
SpecialCasing casing {};
casing.index = static_cast<u32>(unicode_data.special_casing.size());
casing.code_point = AK::StringUtils::convert_to_uint_from_hex<u32>(segments[0]).value();
casing.lowercase_mapping = parse_code_point_list(segments[1]);
casing.titlecase_mapping = parse_code_point_list(segments[2]);
casing.uppercase_mapping = parse_code_point_list(segments[3]);
if (auto condition = segments[4].trim_whitespace(); !condition.is_empty()) {
auto conditions = condition.split(' ', true);
VERIFY(conditions.size() == 1 || conditions.size() == 2);
if (conditions.size() == 2) {
casing.locale = move(conditions[0]);
casing.condition = move(conditions[1]);
} else if (all_of(conditions[0], is_ascii_lower_alpha)) {
casing.locale = move(conditions[0]);
} else {
casing.condition = move(conditions[0]);
}
casing.locale = casing.locale.to_uppercase();
casing.condition.replace("_", "", true);
if (!casing.locale.is_empty() && !unicode_data.locales.contains_slow(casing.locale))
unicode_data.locales.append(casing.locale);
if (!casing.condition.is_empty() && !unicode_data.conditions.contains_slow(casing.condition))
unicode_data.conditions.append(casing.condition);
}
unicode_data.largest_casing_transform_size = max(unicode_data.largest_casing_transform_size, casing.lowercase_mapping.size());
unicode_data.largest_casing_transform_size = max(unicode_data.largest_casing_transform_size, casing.titlecase_mapping.size());
unicode_data.largest_casing_transform_size = max(unicode_data.largest_casing_transform_size, casing.uppercase_mapping.size());
unicode_data.special_casing.append(move(casing));
}
}
static void parse_prop_list(Core::File& file, PropList& prop_list)
{
while (file.can_read_line()) {
auto line = file.read_line();
if (line.is_empty() || line.starts_with('#'))
continue;
if (auto index = line.find('#'); index.has_value())
line = line.substring(0, *index);
auto segments = line.split_view(';', true);
VERIFY(segments.size() == 2);
auto code_point_range = segments[0].trim_whitespace();
auto property = segments[1].trim_whitespace();
auto& code_points = prop_list.ensure(property);
if (code_point_range.contains(".."sv)) {
segments = code_point_range.split_view(".."sv);
VERIFY(segments.size() == 2);
auto begin = AK::StringUtils::convert_to_uint_from_hex<u32>(segments[0]).value();
auto end = AK::StringUtils::convert_to_uint_from_hex<u32>(segments[1]).value();
code_points.append({ begin, end });
} else {
auto code_point = AK::StringUtils::convert_to_uint_from_hex<u32>(code_point_range).value();
code_points.append({ code_point, code_point });
}
}
}
static void parse_alias_list(Core::File& file, PropList const& prop_list, Vector<Alias>& prop_aliases)
{
String current_property;
auto append_alias = [&](auto alias, auto property) {
// Note: The alias files contain lines such as "Hyphen = Hyphen", which we should just skip.
if (alias == property)
return;
// FIXME: We will, eventually, need to find where missing properties are located and parse them.
if (!prop_list.contains(property))
return;
prop_aliases.append({ property, alias });
};
while (file.can_read_line()) {
auto line = file.read_line();
if (line.is_empty() || line.starts_with('#')) {
if (line.ends_with("Properties"sv))
current_property = line.substring(2);
continue;
}
// Note: For now, we only care about Binary Property aliases for Unicode property escapes.
if (current_property != "Binary Properties"sv)
continue;
auto segments = line.split_view(';', true);
VERIFY((segments.size() == 2) || (segments.size() == 3));
auto alias = segments[0].trim_whitespace();
auto property = segments[1].trim_whitespace();
append_alias(alias, property);
if (segments.size() == 3) {
alias = segments[2].trim_whitespace();
append_alias(alias, property);
}
}
}
static void parse_value_alias_list(Core::File& file, StringView desired_category, Vector<String> const& value_list, Vector<Alias> const& prop_unions, Vector<Alias>& prop_aliases, bool primary_value_is_first = true)
{
VERIFY(file.seek(0));
auto append_alias = [&](auto alias, auto value) {
// Note: The value alias file contains lines such as "Ahom = Ahom", which we should just skip.
if (alias == value)
return;
// FIXME: We will, eventually, need to find where missing properties are located and parse them.
if (!value_list.contains_slow(value) && !any_of(prop_unions, [&](auto const& u) { return value == u.alias; }))
return;
prop_aliases.append({ value, alias });
};
while (file.can_read_line()) {
auto line = file.read_line();
if (line.is_empty() || line.starts_with('#'))
continue;
if (auto index = line.find('#'); index.has_value())
line = line.substring(0, *index);
auto segments = line.split_view(';', true);
auto category = segments[0].trim_whitespace();
if (category != desired_category)
continue;
VERIFY((segments.size() == 3) || (segments.size() == 4));
auto value = primary_value_is_first ? segments[1].trim_whitespace() : segments[2].trim_whitespace();
auto alias = primary_value_is_first ? segments[2].trim_whitespace() : segments[1].trim_whitespace();
append_alias(alias, value);
if (segments.size() == 4) {
alias = segments[3].trim_whitespace();
append_alias(alias, value);
}
}
}
static void parse_unicode_data(Core::File& file, UnicodeData& unicode_data)
{
Optional<u32> code_point_range_start;
auto assign_code_point_property = [&](u32 code_point, auto const& list, auto& property, StringView default_) {
using PropertyType = RemoveCVReference<decltype(property)>;
constexpr bool is_single_item = IsSame<PropertyType, StringView>;
auto assign_property = [&](auto const& item) {
if constexpr (is_single_item)
property = item;
else
property.append(item);
};
for (auto const& item : list) {
for (auto const& range : item.value) {
if ((range.first <= code_point) && (code_point <= range.last)) {
assign_property(item.key);
break;
}
}
if constexpr (is_single_item) {
if (!property.is_empty())
break;
}
}
if (property.is_empty())
assign_property(default_);
};
while (file.can_read_line()) {
auto line = file.read_line();
if (line.is_empty())
continue;
auto segments = line.split(';', true);
VERIFY(segments.size() == 15);
CodePointData data {};
data.code_point = AK::StringUtils::convert_to_uint_from_hex<u32>(segments[0]).value();
data.name = move(segments[1]);
data.general_category = move(segments[2]);
data.canonical_combining_class = AK::StringUtils::convert_to_uint<u8>(segments[3]).value();
data.bidi_class = move(segments[4]);
data.decomposition_type = move(segments[5]);
data.numeric_value_decimal = AK::StringUtils::convert_to_int<i8>(segments[6]);
data.numeric_value_digit = AK::StringUtils::convert_to_int<i8>(segments[7]);
data.numeric_value_numeric = AK::StringUtils::convert_to_int<i8>(segments[8]);
data.bidi_mirrored = segments[9] == "Y"sv;
data.unicode_1_name = move(segments[10]);
data.iso_comment = move(segments[11]);
data.simple_uppercase_mapping = AK::StringUtils::convert_to_uint_from_hex<u32>(segments[12]);
data.simple_lowercase_mapping = AK::StringUtils::convert_to_uint_from_hex<u32>(segments[13]);
data.simple_titlecase_mapping = AK::StringUtils::convert_to_uint_from_hex<u32>(segments[14]);
if (data.name.starts_with("<"sv) && data.name.ends_with(", First>")) {
VERIFY(!code_point_range_start.has_value());
code_point_range_start = data.code_point;
data.name = data.name.substring(1, data.name.length() - 9);
} else if (data.name.starts_with("<"sv) && data.name.ends_with(", Last>")) {
VERIFY(code_point_range_start.has_value());
unicode_data.code_point_ranges.append({ *code_point_range_start, data.code_point });
data.name = data.name.substring(1, data.name.length() - 8);
code_point_range_start.clear();
}
for (auto const& casing : unicode_data.special_casing) {
if (casing.code_point == data.code_point)
data.special_casing_indices.append(casing.index);
}
assign_code_point_property(data.code_point, unicode_data.prop_list, data.prop_list, "Assigned"sv);
assign_code_point_property(data.code_point, unicode_data.script_list, data.script, "Unknown"sv);
assign_code_point_property(data.code_point, unicode_data.word_break_prop_list, data.word_break_property, "Other"sv);
unicode_data.largest_special_casing_size = max(unicode_data.largest_special_casing_size, data.special_casing_indices.size());
if (!unicode_data.general_categories.contains_slow(data.general_category))
unicode_data.general_categories.append(data.general_category);
unicode_data.code_point_data.append(move(data));
}
}
static void generate_unicode_data_header(Core::File& file, UnicodeData& unicode_data)
{
StringBuilder builder;
SourceGenerator generator { builder };
generator.set("casing_transform_size", String::number(unicode_data.largest_casing_transform_size));
generator.set("special_casing_size", String::number(unicode_data.largest_special_casing_size));
auto generate_enum = [&](StringView name, StringView default_, Vector<String> values, Vector<Alias> unions = {}, Vector<Alias> aliases = {}, bool as_bitmask = false) {
VERIFY(!as_bitmask || (values.size() <= 64));
quick_sort(values);
quick_sort(unions, [](auto& union1, auto& union2) { return union1.alias < union2.alias; });
quick_sort(aliases, [](auto& alias1, auto& alias2) { return alias1.alias < alias2.alias; });
generator.set("name", name);
generator.set("underlying", String::formatted("{}UnderlyingType", name));
if (as_bitmask) {
generator.append(R"~~~(
using @underlying@ = u64;
enum class @name@ : @underlying@ {)~~~");
} else {
generator.append(R"~~~(
enum class @name@ {)~~~");
}
if (!default_.is_empty()) {
generator.set("default", default_);
generator.append(R"~~~(
@default@,)~~~");
}
u8 index = 0;
for (auto const& value : values) {
generator.set("value", value);
if (as_bitmask) {
generator.set("index", String::number(index++));
generator.append(R"~~~(
@value@ = static_cast<@underlying@>(1) << @index@,)~~~");
} else {
generator.append(R"~~~(
@value@,)~~~");
}
}
for (auto const& union_ : unions) {
generator.set("union", union_.alias);
generator.set("value", union_.property);
generator.append(R"~~~(
@union@ = @value@,)~~~");
}
for (auto const& alias : aliases) {
generator.set("alias", alias.alias);
generator.set("value", alias.property);
generator.append(R"~~~(
@alias@ = @value@,)~~~");
}
generator.append(R"~~~(
};
)~~~");
if (as_bitmask) {
generator.append(R"~~~(
constexpr @name@ operator&(@name@ value1, @name@ value2)
{
return static_cast<@name@>(static_cast<@underlying@>(value1) & static_cast<@underlying@>(value2));
}
constexpr @name@ operator|(@name@ value1, @name@ value2)
{
return static_cast<@name@>(static_cast<@underlying@>(value1) | static_cast<@underlying@>(value2));
}
)~~~");
}
};
generator.append(R"~~~(
#pragma once
#include <AK/Optional.h>
#include <AK/Types.h>
#include <LibUnicode/Forward.h>
namespace Unicode {
)~~~");
generate_enum("Locale"sv, "None"sv, move(unicode_data.locales));
generate_enum("Condition"sv, "None"sv, move(unicode_data.conditions));
generate_enum("GeneralCategory"sv, "None"sv, unicode_data.general_categories, unicode_data.general_category_unions, unicode_data.general_category_aliases, true);
generate_enum("Property"sv, "Assigned"sv, unicode_data.prop_list.keys(), {}, unicode_data.prop_aliases, true);
generate_enum("Script"sv, {}, unicode_data.script_list.keys(), {}, unicode_data.script_aliases);
generate_enum("WordBreakProperty"sv, "Other"sv, unicode_data.word_break_prop_list.keys());
generator.append(R"~~~(
struct SpecialCasing {
u32 code_point { 0 };
u32 lowercase_mapping[@casing_transform_size@];
u32 lowercase_mapping_size { 0 };
u32 uppercase_mapping[@casing_transform_size@];
u32 uppercase_mapping_size { 0 };
u32 titlecase_mapping[@casing_transform_size@];
u32 titlecase_mapping_size { 0 };
Locale locale { Locale::None };
Condition condition { Condition::None };
};
struct UnicodeData {
u32 code_point;)~~~");
auto append_field = [&](StringView type, StringView name) {
if (!s_desired_fields.span().contains_slow(name))
return;
generator.set("type", type);
generator.set("name", name);
generator.append(R"~~~(
@type@ @name@;)~~~");
};
// Note: For compile-time performance, only primitive types are used.
append_field("char const*"sv, "name"sv);
append_field("GeneralCategory"sv, "general_category"sv);
append_field("u8"sv, "canonical_combining_class"sv);
append_field("char const*"sv, "bidi_class"sv);
append_field("char const*"sv, "decomposition_type"sv);
append_field("i8"sv, "numeric_value_decimal"sv);
append_field("i8"sv, "numeric_value_digit"sv);
append_field("i8"sv, "numeric_value_numeric"sv);
append_field("bool"sv, "bidi_mirrored"sv);
append_field("char const*"sv, "unicode_1_name"sv);
append_field("char const*"sv, "iso_comment"sv);
append_field("u32"sv, "simple_uppercase_mapping"sv);
append_field("u32"sv, "simple_lowercase_mapping"sv);
append_field("u32"sv, "simple_titlecase_mapping"sv);
generator.append(R"~~~(
SpecialCasing const* special_casing[@special_casing_size@] {};
u32 special_casing_size { 0 };
Property properties { Property::Assigned };
Script script { Script::Unknown };
WordBreakProperty word_break_property { WordBreakProperty::Other };
};
namespace Detail {
Optional<UnicodeData> unicode_data_for_code_point(u32 code_point);
Optional<Property> property_from_string(StringView const& property);
Optional<GeneralCategory> general_category_from_string(StringView const& general_category);
Optional<Script> script_from_string(StringView const& script);
}
}
)~~~");
write_to_file_if_different(file, generator.as_string_view());
}
static void generate_unicode_data_implementation(Core::File& file, UnicodeData const& unicode_data)
{
StringBuilder builder;
SourceGenerator generator { builder };
generator.set("special_casing_size", String::number(unicode_data.special_casing.size()));
generator.set("code_point_data_size", String::number(unicode_data.code_point_data.size()));
generator.append(R"~~~(
#include <AK/Array.h>
#include <AK/CharacterTypes.h>
#include <AK/HashMap.h>
#include <AK/StringView.h>
#include <LibUnicode/UnicodeData.h>
namespace Unicode {
)~~~");
auto append_list_and_size = [&](auto const& list, StringView format) {
if (list.is_empty()) {
generator.append(", {}, 0");
return;
}
bool first = true;
generator.append(", {");
for (auto const& item : list) {
generator.append(first ? " " : ", ");
generator.append(String::formatted(format, item));
first = false;
}
generator.append(String::formatted(" }}, {}", list.size()));
};
generator.append(R"~~~(
static constexpr Array<SpecialCasing, @special_casing_size@> s_special_casing { {)~~~");
for (auto const& casing : unicode_data.special_casing) {
generator.set("code_point", String::formatted("{:#x}", casing.code_point));
generator.append(R"~~~(
{ @code_point@)~~~");
constexpr auto format = "0x{:x}"sv;
append_list_and_size(casing.lowercase_mapping, format);
append_list_and_size(casing.uppercase_mapping, format);
append_list_and_size(casing.titlecase_mapping, format);
generator.set("locale", casing.locale.is_empty() ? "None" : casing.locale);
generator.append(", Locale::@locale@");
generator.set("condition", casing.condition.is_empty() ? "None" : casing.condition);
generator.append(", Condition::@condition@");
generator.append(" },");
}
generator.append(R"~~~(
} };
static constexpr Array<UnicodeData, @code_point_data_size@> s_unicode_data { {)~~~");
auto append_field = [&](StringView name, String value) {
if (!s_desired_fields.span().contains_slow(name))
return;
generator.set("value", move(value));
generator.append(", @value@");
};
for (auto const& data : unicode_data.code_point_data) {
generator.set("code_point", String::formatted("{:#x}", data.code_point));
generator.append(R"~~~(
{ @code_point@)~~~");
append_field("name", String::formatted("\"{}\"", data.name));
append_field("general_category", String::formatted("GeneralCategory::{}", data.general_category));
append_field("canonical_combining_class", String::number(data.canonical_combining_class));
append_field("bidi_class", String::formatted("\"{}\"", data.bidi_class));
append_field("decomposition_type", String::formatted("\"{}\"", data.decomposition_type));
append_field("numeric_value_decimal", String::number(data.numeric_value_decimal.value_or(-1)));
append_field("numeric_value_digit", String::number(data.numeric_value_digit.value_or(-1)));
append_field("numeric_value_numeric", String::number(data.numeric_value_numeric.value_or(-1)));
append_field("bidi_mirrored", String::formatted("{}", data.bidi_mirrored));
append_field("unicode_1_name", String::formatted("\"{}\"", data.unicode_1_name));
append_field("iso_comment", String::formatted("\"{}\"", data.iso_comment));
append_field("simple_uppercase_mapping", String::formatted("{:#x}", data.simple_uppercase_mapping.value_or(data.code_point)));
append_field("simple_lowercase_mapping", String::formatted("{:#x}", data.simple_lowercase_mapping.value_or(data.code_point)));
append_field("simple_titlecase_mapping", String::formatted("{:#x}", data.simple_titlecase_mapping.value_or(data.code_point)));
append_list_and_size(data.special_casing_indices, "&s_special_casing[{}]"sv);
bool first = true;
for (auto const& property : data.prop_list) {
generator.append(first ? ", " : " | ");
generator.append(String::formatted("Property::{}", property));
first = false;
}
generator.append(String::formatted(", Script::{}", data.script));
generator.append(String::formatted(", WordBreakProperty::{}", data.word_break_property));
generator.append(" },");
}
generator.append(R"~~~(
} };
static HashMap<u32, UnicodeData const*> const& ensure_code_point_map()
{
static HashMap<u32, UnicodeData const*> code_point_to_data_map;
code_point_to_data_map.ensure_capacity(s_unicode_data.size());
for (auto const& unicode_data : s_unicode_data)
code_point_to_data_map.set(unicode_data.code_point, &unicode_data);
return code_point_to_data_map;
}
static Optional<u32> index_of_code_point_in_range(u32 code_point)
{)~~~");
for (auto const& range : unicode_data.code_point_ranges) {
generator.set("first", String::formatted("{:#x}", range.first));
generator.set("last", String::formatted("{:#x}", range.last));
generator.append(R"~~~(
if ((code_point > @first@) && (code_point < @last@))
return @first@;)~~~");
}
generator.append(R"~~~(
return {};
}
namespace Detail {
Optional<UnicodeData> unicode_data_for_code_point(u32 code_point)
{
static auto const& code_point_to_data_map = ensure_code_point_map();
VERIFY(is_unicode(code_point));
if (auto data = code_point_to_data_map.get(code_point); data.has_value())
return *(data.value());
if (auto index = index_of_code_point_in_range(code_point); index.has_value()) {
auto data_for_range = *(code_point_to_data_map.get(*index).value());
data_for_range.simple_uppercase_mapping = code_point;
data_for_range.simple_lowercase_mapping = code_point;
return data_for_range;
}
return {};
}
Optional<Property> property_from_string(StringView const& property)
{
if (property == "Assigned"sv)
return Property::Assigned;)~~~");
for (auto const& property : unicode_data.prop_list) {
generator.set("property", property.key);
generator.append(R"~~~(
if (property == "@property@"sv)
return Property::@property@;)~~~");
}
for (auto const& alias : unicode_data.prop_aliases) {
generator.set("property", alias.alias);
generator.append(R"~~~(
if (property == "@property@"sv)
return Property::@property@;)~~~");
}
generator.append(R"~~~(
return {};
}
Optional<GeneralCategory> general_category_from_string(StringView const& general_category)
{)~~~");
for (auto const& general_category : unicode_data.general_categories) {
generator.set("general_category", general_category);
generator.append(R"~~~(
if (general_category == "@general_category@"sv)
return GeneralCategory::@general_category@;)~~~");
}
for (auto const& union_ : unicode_data.general_category_unions) {
generator.set("general_category", union_.alias);
generator.append(R"~~~(
if (general_category == "@general_category@"sv)
return GeneralCategory::@general_category@;)~~~");
}
for (auto const& alias : unicode_data.general_category_aliases) {
generator.set("general_category", alias.alias);
generator.append(R"~~~(
if (general_category == "@general_category@"sv)
return GeneralCategory::@general_category@;)~~~");
}
generator.append(R"~~~(
return {};
}
Optional<Script> script_from_string(StringView const& script)
{)~~~");
for (auto const& script : unicode_data.script_list) {
generator.set("script", script.key);
generator.append(R"~~~(
if (script == "@script@"sv)
return Script::@script@;)~~~");
}
for (auto const& alias : unicode_data.script_aliases) {
generator.set("script", alias.alias);
generator.append(R"~~~(
if (script == "@script@"sv)
return Script::@script@;)~~~");
}
generator.append(R"~~~(
return {};
}
}
}
)~~~");
write_to_file_if_different(file, generator.as_string_view());
}
int main(int argc, char** argv)
{
char const* generated_header_path = nullptr;
char const* generated_implementation_path = nullptr;
char const* unicode_data_path = nullptr;
char const* special_casing_path = nullptr;
char const* prop_list_path = nullptr;
char const* derived_core_prop_path = nullptr;
char const* prop_alias_path = nullptr;
char const* prop_value_alias_path = nullptr;
char const* scripts_path = nullptr;
char const* word_break_path = nullptr;
Core::ArgsParser args_parser;
args_parser.add_option(generated_header_path, "Path to the Unicode Data header file to generate", "generated-header-path", 'h', "generated-header-path");
args_parser.add_option(generated_implementation_path, "Path to the Unicode Data implementation file to generate", "generated-implementation-path", 'c', "generated-implementation-path");
args_parser.add_option(unicode_data_path, "Path to UnicodeData.txt file", "unicode-data-path", 'u', "unicode-data-path");
args_parser.add_option(special_casing_path, "Path to SpecialCasing.txt file", "special-casing-path", 's', "special-casing-path");
args_parser.add_option(prop_list_path, "Path to PropList.txt file", "prop-list-path", 'p', "prop-list-path");
args_parser.add_option(derived_core_prop_path, "Path to DerivedCoreProperties.txt file", "derived-core-prop-path", 'd', "derived-core-prop-path");
args_parser.add_option(prop_alias_path, "Path to PropertyAliases.txt file", "prop-alias-path", 'a', "prop-alias-path");
args_parser.add_option(prop_value_alias_path, "Path to PropertyValueAliases.txt file", "prop-value-alias-path", 'v', "prop-value-alias-path");
args_parser.add_option(scripts_path, "Path to Scripts.txt file", "scripts-path", 'r', "scripts-path");
args_parser.add_option(word_break_path, "Path to WordBreakProperty.txt file", "word-break-path", 'w', "word-break-path");
args_parser.parse(argc, argv);
auto open_file = [&](StringView path, StringView flags, Core::OpenMode mode = Core::OpenMode::ReadOnly) {
if (path.is_empty()) {
warnln("{} is required", flags);
args_parser.print_usage(stderr, argv[0]);
exit(1);
}
auto file_or_error = Core::File::open(path, mode);
if (file_or_error.is_error()) {
warnln("Failed to open {}: {}", path, file_or_error.release_error());
exit(1);
}
return file_or_error.release_value();
};
auto generated_header_file = open_file(generated_header_path, "-h/--generated-header-path", Core::OpenMode::ReadWrite);
auto generated_implementation_file = open_file(generated_implementation_path, "-c/--generated-implementation-path", Core::OpenMode::ReadWrite);
auto unicode_data_file = open_file(unicode_data_path, "-u/--unicode-data-path");
auto special_casing_file = open_file(special_casing_path, "-s/--special-casing-path");
auto prop_list_file = open_file(prop_list_path, "-p/--prop-list-path");
auto derived_core_prop_file = open_file(derived_core_prop_path, "-d/--derived-core-prop-path");
auto prop_alias_file = open_file(prop_alias_path, "-a/--prop-alias-path");
auto prop_value_alias_file = open_file(prop_value_alias_path, "-v/--prop-value-alias-path");
auto scripts_file = open_file(scripts_path, "-r/--scripts-path");
auto word_break_file = open_file(word_break_path, "-w/--word-break-path");
UnicodeData unicode_data {};
parse_special_casing(special_casing_file, unicode_data);
parse_prop_list(prop_list_file, unicode_data.prop_list);
parse_prop_list(derived_core_prop_file, unicode_data.prop_list);
parse_alias_list(prop_alias_file, unicode_data.prop_list, unicode_data.prop_aliases);
parse_prop_list(scripts_file, unicode_data.script_list);
parse_prop_list(word_break_file, unicode_data.word_break_prop_list);
parse_unicode_data(unicode_data_file, unicode_data);
parse_value_alias_list(prop_value_alias_file, "gc"sv, unicode_data.general_categories, unicode_data.general_category_unions, unicode_data.general_category_aliases);
parse_value_alias_list(prop_value_alias_file, "sc"sv, unicode_data.script_list.keys(), {}, unicode_data.script_aliases, false);
generate_unicode_data_header(generated_header_file, unicode_data);
generate_unicode_data_implementation(generated_implementation_file, unicode_data);
return 0;
}