From 5a8dbc6347b3541e84fe669b22c17ad3b715e258 Mon Sep 17 00:00:00 2001
From: Mitja Felicijan <mitja.felicijan@gmail.com>
Date: Wed, 21 Jan 2026 20:22:09 +0100
Subject: Engage!

---
 .../mitjafelicijan/go-tree-sitter/css/scanner.c    | 83 ++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 vendor/github.com/mitjafelicijan/go-tree-sitter/css/scanner.c

(limited to 'vendor/github.com/mitjafelicijan/go-tree-sitter/css/scanner.c')

diff --git a/vendor/github.com/mitjafelicijan/go-tree-sitter/css/scanner.c b/vendor/github.com/mitjafelicijan/go-tree-sitter/css/scanner.c
new file mode 100644
index 0000000..8b9347f
--- /dev/null
+++ b/vendor/github.com/mitjafelicijan/go-tree-sitter/css/scanner.c
@@ -0,0 +1,83 @@
+#include "parser.h"
+
+#include <wctype.h>
+
+enum TokenType {
+    DESCENDANT_OP,
+    PSEUDO_CLASS_SELECTOR_COLON,
+    ERROR_RECOVERY,
+};
+
+static inline void advance(TSLexer *lexer) { lexer->advance(lexer, false); }
+
+static inline void skip(TSLexer *lexer) { lexer->advance(lexer, true); }
+
+void *tree_sitter_css_external_scanner_create() { return NULL; }
+
+void tree_sitter_css_external_scanner_destroy(void *payload) {}
+
+unsigned tree_sitter_css_external_scanner_serialize(void *payload, char *buffer) { return 0; }
+
+void tree_sitter_css_external_scanner_deserialize(void *payload, const char *buffer, unsigned length) {}
+
+bool tree_sitter_css_external_scanner_scan(void *payload, TSLexer *lexer, const bool *valid_symbols) {
+    if (valid_symbols[ERROR_RECOVERY]) {
+        return false;
+    }
+
+    if (iswspace(lexer->lookahead) && valid_symbols[DESCENDANT_OP]) {
+        lexer->result_symbol = DESCENDANT_OP;
+
+        lexer->advance(lexer, true);
+        while (iswspace(lexer->lookahead)) {
+            lexer->advance(lexer, true);
+        }
+        lexer->mark_end(lexer);
+
+        if (lexer->lookahead == '#' || lexer->lookahead == '.' || lexer->lookahead == '[' || lexer->lookahead == '-' ||
+            lexer->lookahead == '*' || iswalnum(lexer->lookahead)) {
+            return true;
+        }
+
+        if (lexer->lookahead == ':') {
+            lexer->advance(lexer, false);
+            if (iswspace(lexer->lookahead)) {
+                return false;
+            }
+            for (;;) {
+                if (lexer->lookahead == ';' || lexer->lookahead == '}' || lexer->eof(lexer)) {
+                    return false;
+                }
+                if (lexer->lookahead == '{') {
+                    return true;
+                }
+                lexer->advance(lexer, false);
+            }
+        }
+    }
+
+    if (valid_symbols[PSEUDO_CLASS_SELECTOR_COLON]) {
+        while (iswspace(lexer->lookahead)) {
+            lexer->advance(lexer, true);
+        }
+        if (lexer->lookahead == ':') {
+            advance(lexer);
+            if (lexer->lookahead == ':') {
+                return false;
+            }
+            lexer->mark_end(lexer);
+            // We need a { to be a pseudo class selector, a ; indicates a property
+            while (lexer->lookahead != ';' && lexer->lookahead != '\'' && lexer->lookahead != '}' &&
+                   !lexer->eof(lexer)) {
+                advance(lexer);
+                if (lexer->lookahead == '{') {
+                    lexer->result_symbol = PSEUDO_CLASS_SELECTOR_COLON;
+                    return true;
+                }
+            }
+            return false;
+        }
+    }
+
+    return false;
+}
-- 
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