More (conditional) sourcepos!

+ Expose references as part of the AST

api_test/main.c

@@ -5,6 +5,7 @@
 #define CMARK_NO_SHORT_NAMES
 #include "cmark.h"
 #include "node.h"
+#include "parser.h"
 
 #include "harness.h"
 #include "cplusplus.h"
@@ -883,6 +884,41 @@ static void test_feed_across_line_ending(test_batch_runner *runner) {
   cmark_node_free(document);
 }
 
+static cmark_node *S_parse_with_fake_total(bufsize_t fake_total,
+                                           const char *str,
+                                           cmark_err_type *err) {
+  cmark_parser *parser = cmark_parser_new(CMARK_OPT_DEFAULT);
+  parser->total_bytes = fake_total;
+  cmark_parser_feed(parser, str, strlen(str));
+  cmark_node *doc = cmark_parser_finish(parser);
+  *err = cmark_parser_get_error(parser);
+  cmark_parser_free(parser);
+  return doc;
+}
+
+static void test_bufsize_overflow(test_batch_runner *runner) {
+  cmark_node *doc;
+  cmark_err_type err;
+
+  doc = S_parse_with_fake_total(BUFSIZE_MAX, "a", &err);
+  OK(runner, doc == NULL, "parse 1 byte after BUFSIZE_MAX bytes fails");
+  INT_EQ(runner, err, CMARK_ERR_INPUT_TOO_LARGE,
+         "parse 1 byte after BUFSIZE_MAX bytes error code");
+
+  doc = S_parse_with_fake_total(BUFSIZE_MAX - 9, "0123456789", &err);
+  OK(runner, doc == NULL, "parse 10 byte after BUFSIZE_MAX-9 bytes fails");
+  INT_EQ(runner, err, CMARK_ERR_INPUT_TOO_LARGE,
+         "parse 10 byte after BUFSIZE_MAX-9 bytes error code");
+
+  doc = S_parse_with_fake_total(BUFSIZE_MAX - 1, "a", &err);
+  OK(runner, doc != NULL, "parse 1 byte after BUFSIZE_MAX-1 bytes");
+  cmark_node_free(doc);
+
+  doc = S_parse_with_fake_total(BUFSIZE_MAX - 10, "0123456789", &err);
+  OK(runner, doc != NULL, "parse 10 byte after BUFSIZE_MAX-10 bytes");
+  cmark_node_free(doc);
+}
+
 int main() {
   int retval;
   test_batch_runner *runner = test_batch_runner_new();
@@ -908,6 +944,7 @@ int main() {
   test_cplusplus(runner);
   test_safe(runner);
   test_feed_across_line_ending(runner);
+  test_bufsize_overflow(runner);
 
   test_print_summary(runner);
   retval = test_ok(runner) ? 0 : 1;

src/CMakeLists.txt

@@ -18,6 +18,7 @@ set(HEADERS
   houdini.h
   cmark_ctype.h
   render.h
+  source_map.h
   )
 set(LIBRARY_SOURCES
   cmark.c
@@ -40,6 +41,7 @@ set(LIBRARY_SOURCES
   houdini_html_e.c
   houdini_html_u.c
   cmark_ctype.c
+  source_map.c
   ${HEADERS}
   )