CSS API: Add CSS token processor foundations#92
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Summary
WP_CSS_Token_Processoras the low-level CSS Syntax tokenization foundationWP_CSS_Builder, used to serialize token values safelyThis is intentionally extracted from
css-api/add-css-token-processorwithout its adjacent stylesheet parser, font normalization, selector, and custom test-harness explorations. It provides a small base for follow-up CSS API work.Validation
WP_TESTS_SKIP_INSTALL=1 vendor/bin/phpunit tests/phpunit/tests/css-api/wpCssBuilder.php— 39 tests, 96 assertionsWP_TESTS_SKIP_INSTALL=1 vendor/bin/phpunit tests/phpunit/tests/css-api/wpCssTokenProcessor.php— 264 tests, 373 assertionsvendor/bin/phpcs --standard=phpcs.xml.diston the four PHP filesgit diff --check