Some parsing stuff. Currently broken.

context.h

@@ -4,6 +4,11 @@
 
 #define CONTEXT_HEADER
 
+/*
+Probably gonna' need to stratify this a bit more. A context object will store
+the symbol table and any other necessary project-wide info. Each sass_document
+struct will store src strings, line counts, etc.
+*/
 
 typedef struct {
   char *path;              /* the full directory+filename of the source file */

parser.c

-
-#include "parser.h"
 #include <stdlib.h>
+#include "parser.h"
+#include "prefix.h"
+
+DEFINE_SASS_ARRAY_OF(sass_node_ptr);
+
+sass_token sass_make_token(int lexeme, char *beg, char *end) {
+  sass_token t;
+  t.lexeme = lexeme;
+  t.beg = beg;
+  t.end = end;
+  return t;
+}
 
 int sass_parse(sass_context *ctx) {
   sass_document *doc = (sass_document*)malloc(sizeof(sass_document));
   doc->src = ctx->src;
   return 0;
+}
+
+sass_sass_node_ptr_array sass_parse(sass_context *ctx) {
+  /* not sure how big of an array to allocate by default */
+  sass_sass_node_ptr_array statements = sass_make_sass_node_ptr_array(16);
+  while (ctx->*p) sass_sass_node_ptr_array_push(statements, sass_parse_statement(ctx));
+  return statements;
+}
+
+static sass_node_ptr sass_parse_statement(sass_context *ctx) {
+  /* currently only handles rulesets; will expand to handle atkeywords */
+  return sass_parse_ruleset(ctx);
+}
+
+static sass_node_ptr sass_parse_ruleset(sass_context *ctx) {
+  sass_node_ptr selector = sass_parse_selector(ctx);
+  sass_node_ptr declarations = sass_parse_declarations(ctx);
+  return sass_make_node(RULESET, selector, declarations);
+}
+
+static sass_node_ptr sass_parse_selector(sass_context *ctx) {
+  /* will eventually need to be much more complicated */
+  char *lbrace = sass_prefix_find_first(ctx->pos, sass_prefix_is_lbrace);
+  sass_node_ptr node = sass_make_node(SELECTOR);
+  node->token = sass_make_token(SELECTOR, pos, lbrace);
+  ctx->pos = lbrace;
+  return node;
 }
\ No newline at end of file

parser.h

@@ -2,5 +2,35 @@
 #ifndef CONTEXT_HEADER
 #include "context.h"
 #endif
+#include "array.h"
+
+enum {
+  IDENT,
+  ATKEYWORD,
+  STRING,
+  IDNAME,
+  CLASSNAME,
+  NUMBER,
+  PERCENTAGE,
+  DIMENSION,
+  URI,
+  SPACES,
+  COMMENT,
+  FUNCTION,
+  EXACTMATCH,
+  INCLUDES,
+  DASHMATCH,
+  PREFIXMATCH,
+  SUFFIXMATCH,
+  SUBSTRINGMATCH
+};
+  
+typedef struct {
+  int lexeme;
+  char *beg;
+  char *end;
+} Token;
+
+#define sass_peek_token(src, lexeme) (sass_prefix_is_ ## lexeme(src))
 
 int sass_parse(sass_context *ctx);
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