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LibGfx: Make Color::from_string() case-insensitive

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This function implements CSS color syntax, which is case-insensitive in
HTML contexts. Making it insensitive here means not having to remember
to do it in every user, (many of the HTML elements do not do this,) and
means they don't have to produce a lowercase copy of the input string
before passing it.
This commit is contained in:
Sam Atkins 2021-10-24 15:10:00 +01:00 committed by Andreas Kling
parent 639c913e58
commit 094dc04695
Notes: sideshowbarker 2024-07-18 01:55:46 +09:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/SerenityOS/serenity/commit/094dc046956
Pull-request: https://github.com/SerenityOS/serenity/pull/10622
1 changed files with 6 additions and 6 deletions
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12
Userland/Libraries/LibGfx/Color.cpp
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@ -30,7 +30,7 @@ String Color::to_string_without_alpha() const
static Optional<Color> parse_rgb_color(StringView const& string)
{
VERIFY(string.starts_with("rgb("));
VERIFY(string.starts_with("rgb(", CaseSensitivity::CaseInsensitive));
VERIFY(string.ends_with(")"));
auto substring = string.substring_view(4, string.length() - 5);
@ -51,7 +51,7 @@ static Optional<Color> parse_rgb_color(StringView const& string)
static Optional<Color> parse_rgba_color(StringView const& string)
{
VERIFY(string.starts_with("rgba("));
VERIFY(string.starts_with("rgba(", CaseSensitivity::CaseInsensitive));
VERIFY(string.ends_with(")"));
auto substring = string.substring_view(5, string.length() - 6);
@ -245,18 +245,18 @@ Optional<Color> Color::from_string(StringView const& string)
{ 0x000000, nullptr }
};
if (string == "transparent")
if (string.equals_ignoring_case("transparent"))
return Color::from_rgba(0x00000000);
for (size_t i = 0; !web_colors[i].name.is_null(); ++i) {
if (string == web_colors[i].name)
if (string.equals_ignoring_case(web_colors[i].name))
return Color::from_rgb(web_colors[i].color);
}
if (string.starts_with("rgb(") && string.ends_with(")"))
if (string.starts_with("rgb(", CaseSensitivity::CaseInsensitive) && string.ends_with(")"))
return parse_rgb_color(string);
if (string.starts_with("rgba(") && string.ends_with(")"))
if (string.starts_with("rgba(", CaseSensitivity::CaseInsensitive) && string.ends_with(")"))
return parse_rgba_color(string);
if (string[0] != '#')