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Libraries: Create top level directory for libraries.

Things were getting a little crowded in the project root, so this patch
moves the Lib*/ directories into Libraries/.
This commit is contained in:
Andreas Kling 2019-07-04 16:16:50 +02:00
parent 63814ffebf
commit 04b9dc2d30
328 changed files with 36 additions and 36 deletions

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#include <LibHTML/CSS/StyleSheet.h>
#include <LibHTML/Parser/CSSParser.h>
#include <ctype.h>
#include <stdio.h>
NonnullRefPtr<StyleValue> parse_css_value(const StringView& view)
{
String string(view);
bool ok;
int as_int = string.to_int(ok);
if (ok)
return LengthStyleValue::create(Length(as_int, Length::Type::Absolute));
unsigned as_uint = string.to_uint(ok);
if (ok)
return LengthStyleValue::create(Length(as_uint, Length::Type::Absolute));
if (string == "auto")
return LengthStyleValue::create(Length());
return StringStyleValue::create(string);
}
NonnullRefPtr<StyleSheet> parse_css(const String& css)
{
NonnullRefPtrVector<StyleRule> rules;
enum class State {
Free,
InSelectorComponent,
InPropertyName,
InPropertyValue,
};
struct CurrentRule {
Vector<Selector> selectors;
NonnullRefPtrVector<StyleDeclaration> declarations;
};
CurrentRule current_rule;
Vector<char> buffer;
int index = 0;
auto peek = [&]() -> char {
if (index < css.length())
return css[index];
return 0;
};
auto consume_specific = [&](char ch) {
ASSERT(peek() == ch);
++index;
return ch;
};
auto consume_one = [&]() -> char {
return css[index++];
};
auto consume_whitespace = [&] {
while (isspace(peek()))
++index;
};
auto is_valid_selector_char = [](char ch) {
return isalnum(ch) || ch == '-' || ch == '_';
};
auto parse_selector = [&] {
consume_whitespace();
Selector::Component::Type type;
if (peek() == '.')
type = Selector::Component::Type::Class;
else if (peek() == '#')
type = Selector::Component::Type::Id;
else
type = Selector::Component::Type::TagName;
while (is_valid_selector_char(peek()))
buffer.append(consume_one());
ASSERT(!buffer.is_null());
auto component_string = String::copy(buffer);
Vector<Selector::Component> components;
components.append({ type, component_string });
buffer.clear();
current_rule.selectors.append(Selector(move(components)));
};
auto parse_selector_list = [&] {
for (;;) {
parse_selector();
consume_whitespace();
if (peek() == ',') {
consume_one();
continue;
}
if (peek() == '{')
break;
}
};
auto is_valid_property_name_char = [](char ch) {
return !isspace(ch) && ch != ':';
};
auto is_valid_property_value_char = [](char ch) {
return !isspace(ch) && ch != ';';
};
auto parse_declaration = [&] {
consume_whitespace();
buffer.clear();
while (is_valid_property_name_char(peek()))
buffer.append(consume_one());
auto property_name = String::copy(buffer);
buffer.clear();
consume_whitespace();
consume_specific(':');
consume_whitespace();
while (is_valid_property_value_char(peek()))
buffer.append(consume_one());
auto property_value = String::copy(buffer);
buffer.clear();
consume_specific(';');
current_rule.declarations.append(StyleDeclaration::create(property_name, parse_css_value(property_value)));
};
auto parse_declarations = [&] {
for (;;) {
parse_declaration();
consume_whitespace();
if (peek() == '}')
break;
}
};
auto parse_rule = [&] {
parse_selector_list();
consume_specific('{');
parse_declarations();
consume_specific('}');
rules.append(StyleRule::create(move(current_rule.selectors), move(current_rule.declarations)));
};
while (index < css.length()) {
parse_rule();
}
return StyleSheet::create(move(rules));
}

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#pragma once
#include <AK/NonnullRefPtr.h>
#include <LibHTML/CSS/StyleSheet.h>
NonnullRefPtr<StyleSheet> parse_css(const String&);

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#include <AK/NonnullRefPtrVector.h>
#include <LibHTML/DOM/Element.h>
#include <LibHTML/DOM/Text.h>
#include <LibHTML/Parser/HTMLParser.h>
#include <ctype.h>
#include <stdio.h>
static NonnullRefPtr<Element> create_element(const String& tag_name)
{
return adopt(*new Element(tag_name));
}
static bool is_valid_in_attribute_name(char ch)
{
return isalnum(ch) || ch == '_' || ch == '-';
}
static bool is_self_closing_tag(const String& tag_name)
{
return tag_name == "area"
|| tag_name == "base"
|| tag_name == "br"
|| tag_name == "col"
|| tag_name == "embed"
|| tag_name == "hr"
|| tag_name == "img"
|| tag_name == "input"
|| tag_name == "link"
|| tag_name == "meta"
|| tag_name == "param"
|| tag_name == "source"
|| tag_name == "track"
|| tag_name == "wbr";
}
NonnullRefPtr<Document> parse_html(const String& html)
{
NonnullRefPtrVector<ParentNode> node_stack;
auto doc = adopt(*new Document);
node_stack.append(doc);
enum class State {
Free = 0,
BeforeTagName,
InTagName,
InAttributeList,
InAttributeName,
BeforeAttributeValue,
InAttributeValueNoQuote,
InAttributeValueSingleQuote,
InAttributeValueDoubleQuote,
};
auto state = State::Free;
Vector<char, 256> text_buffer;
Vector<char, 32> tag_name_buffer;
Vector<Attribute> attributes;
Vector<char, 256> attribute_name_buffer;
Vector<char, 256> attribute_value_buffer;
bool is_slash_tag = false;
auto move_to_state = [&](State new_state) {
if (new_state == State::BeforeTagName) {
is_slash_tag = false;
tag_name_buffer.clear();
attributes.clear();
}
if (new_state == State::InAttributeName)
attribute_name_buffer.clear();
if (new_state == State::BeforeAttributeValue)
attribute_value_buffer.clear();
if (state == State::Free && !text_buffer.is_empty()) {
auto text_node = adopt(*new Text(String::copy(text_buffer)));
text_buffer.clear();
node_stack.last().append_child(text_node);
}
state = new_state;
text_buffer.clear();
};
auto close_tag = [&] {
if (node_stack.size() > 1)
node_stack.take_last();
};
auto open_tag = [&] {
auto new_element = create_element(String::copy(tag_name_buffer));
tag_name_buffer.clear();
new_element->set_attributes(move(attributes));
node_stack.append(new_element);
if (node_stack.size() != 1)
node_stack[node_stack.size() - 2].append_child(new_element);
if (is_self_closing_tag(new_element->tag_name()))
close_tag();
};
auto commit_tag = [&] {
if (is_slash_tag)
close_tag();
else
open_tag();
};
auto commit_attribute = [&] {
attributes.append({ String::copy(attribute_name_buffer), String::copy(attribute_value_buffer) });
};
for (int i = 0; i < html.length(); ++i) {
char ch = html[i];
switch (state) {
case State::Free:
if (ch == '<') {
is_slash_tag = false;
move_to_state(State::BeforeTagName);
break;
}
text_buffer.append(ch);
break;
case State::BeforeTagName:
if (ch == '/') {
is_slash_tag = true;
break;
}
if (ch == '>') {
move_to_state(State::Free);
break;
}
if (!isalpha(ch))
break;
move_to_state(State::InTagName);
[[fallthrough]];
case State::InTagName:
if (isspace(ch)) {
move_to_state(State::InAttributeList);
break;
}
if (ch == '>') {
commit_tag();
move_to_state(State::Free);
break;
}
tag_name_buffer.append(ch);
break;
case State::InAttributeList:
if (ch == '>') {
commit_tag();
move_to_state(State::Free);
break;
}
if (!isalpha(ch))
break;
move_to_state(State::InAttributeName);
[[fallthrough]];
case State::InAttributeName:
if (is_valid_in_attribute_name(ch)) {
attribute_name_buffer.append(ch);
break;
}
if (isspace(ch)) {
commit_attribute();
break;
}
if (ch == '>') {
commit_tag();
move_to_state(State::Free);
break;
}
if (ch == '=') {
move_to_state(State::BeforeAttributeValue);
break;
}
break;
case State::BeforeAttributeValue:
if (ch == '\'') {
move_to_state(State::InAttributeValueSingleQuote);
break;
}
if (ch == '"') {
move_to_state(State::InAttributeValueDoubleQuote);
break;
}
if (ch == '>') {
commit_tag();
move_to_state(State::Free);
break;
}
if (isspace(ch)) {
commit_attribute();
move_to_state(State::InAttributeList);
break;
}
break;
case State::InAttributeValueSingleQuote:
if (ch == '\'') {
commit_attribute();
move_to_state(State::InAttributeList);
break;
}
attribute_value_buffer.append(ch);
break;
case State::InAttributeValueDoubleQuote:
if (ch == '"') {
commit_attribute();
move_to_state(State::InAttributeList);
break;
}
attribute_value_buffer.append(ch);
break;
case State::InAttributeValueNoQuote:
if (isspace(ch)) {
commit_attribute();
move_to_state(State::InAttributeList);
break;
}
if (ch == '>') {
commit_tag();
move_to_state(State::Free);
break;
}
attribute_value_buffer.append(ch);
break;
default:
fprintf(stderr, "Unhandled state %d\n", (int)state);
ASSERT_NOT_REACHED();
}
}
return doc;
}

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#pragma once
#include <AK/NonnullRefPtr.h>
#include <LibHTML/DOM/Document.h>
NonnullRefPtr<Document> parse_html(const String&);