Getting started on the Sass context objects.

src/context.c

+#include <stdlib.h>
+#include <stdio.h>
+#include "context.h"
+#include "file.h"
+
+sass_context *make_sass_context_from_file(char *path) {
+  sass_context *ctx = malloc(sizeof(sass_context));
+  if (!ctx) {
+    printf("ERROR: could not allocate sass context object.\n");
+    abort();
+  }
+  ctx->path = path;
+  ctx->src = sass_read_file(path);
+  return ctx;
+}
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src/context.h

+#include <setjmp.h>
+
+typedef struct {
+  char *path;  /* the full directory+filename of the source file */
+  char *src;   /* the text of the entire source file */
+  char *pos;   /* keeps track of the parser/scanner's current position */
+  jmp_buf env; /* the top of the exception-handling stack */
+  /* more to come */
+} sass_context;
+
+sass_context *make_sass_context_from_file(char *path);
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