1 files changed, 58 insertions, 1 deletions
diff --git a/src/parse/language.h b/src/parse/language.h
index cd7dd74..0b1d56f 100644
--- a/src/parse/language.h
+++ b/src/parse/language.h
@@ -8,18 +8,75 @@
 #ifndef css_parse_language_h_
 #define css_parse_language_h_
 
+#include <parserutils/utils/stack.h>
 #include <parserutils/utils/vector.h>
 
 #include <libcss/functypes.h>
 #include <libcss/types.h>
 
+#include "lex/lex.h"
 #include "parse/parse.h"
+#include "parse/propstrings.h"
 
-typedef struct css_language css_language;
+/**
+ * Context for a CSS language parser
+ */
+typedef struct css_language {
+	css_stylesheet *sheet;		/**< The stylesheet to parse for */
+
+#define STACK_CHUNK 32
+	parserutils_stack *context;	/**< Context stack */
+
+	enum {
+		BEFORE_CHARSET,
+		BEFORE_RULES,
+		HAD_RULE
+	} state;			/**< State flag, for at-rule handling */
+
+	/** \todo These should be statically allocated */
+	/** Interned strings */
+	lwc_string *strings[LAST_KNOWN];
+
+	css_allocator_fn alloc;		/**< Memory (de)allocation function */
+	void *pw;			/**< Client's private data */
+} css_language;
 
 css_error css_language_create(css_stylesheet *sheet, css_parser *parser,
 		css_allocator_fn alloc, void *pw, void **language);
 css_error css_language_destroy(css_language *language);
 
+/******************************************************************************
+ * Helper functions                                                           *
+ ******************************************************************************/
+
+/**
+ * Consume all leading whitespace tokens
+ *
+ * \param vector  The vector to consume from
+ * \param ctx     The vector's context
+ */
+static inline void consumeWhitespace(const parserutils_vector *vector, int *ctx)
+{
+	const css_token *token = NULL;
+
+	while ((token = parserutils_vector_peek(vector, *ctx)) != NULL &&
+			token->type == CSS_TOKEN_S)
+		token = parserutils_vector_iterate(vector, ctx);
+}
+
+/**
+ * Determine if a token is a character
+ *
+ * \param token  The token to consider
+ * \param c      The character to match (lowercase ASCII only)
+ * \return True if the token matches, false otherwise
+ */
+static inline bool tokenIsChar(const css_token *token, uint8_t c)
+{
+	return token != NULL && token->type == CSS_TOKEN_CHAR && 
+	                lwc_string_length(token->ilower) == 1 && 
+			lwc_string_data(token->ilower)[0] == c;
+}
+
 #endif