diff options
Diffstat (limited to 'Userland')
| -rw-r--r-- | Userland/Libraries/LibWeb/CSS/Selector.h | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/Userland/Libraries/LibWeb/CSS/Selector.h b/Userland/Libraries/LibWeb/CSS/Selector.h index 1fc242e2da..47e42ac9bd 100644 --- a/Userland/Libraries/LibWeb/CSS/Selector.h +++ b/Userland/Libraries/LibWeb/CSS/Selector.h @@ -44,9 +44,38 @@ public: int step_size { 0 }; // "A" int offset = { 0 }; // "B" + // https://www.w3.org/TR/css-syntax-3/#serializing-anb String serialize() const { - return String::formatted("{}n{:+}", step_size, offset); + // 1. If A is zero, return the serialization of B. + if (step_size == 0) { + return String::formatted("{}", offset); + } + + // 2. Otherwise, let result initially be an empty string. + StringBuilder result; + + // 3. + // - A is 1: Append "n" to result. + if (step_size == 1) + result.append("n"); + // - A is -1: Append "-n" to result. + else if (step_size == -1) + result.append("-n"); + // - A is non-zero: Serialize A and append it to result, then append "n" to result. + else if (step_size != 0) + result.appendff("{}n", step_size); + + // 4. + // - B is greater than zero: Append "+" to result, then append the serialization of B to result. + if (offset > 0) + result.appendff("+{}", offset); + // - B is less than zero: Append the serialization of B to result. + if (offset < 0) + result.appendff("{}", offset); + + // 5. Return result. + return result.to_string(); } }; |