Restructure and start tag stream

src/main/c/stream/helper/tagname.c

@@ -0,0 +1,27 @@
+#ifndef _HDR_HYPERBUILD_STREAM_HELPER_TAGNAME
+#define _HDR_HYPERBUILD_STREAM_HELPER_TAGNAME
+
+#include "../../rule/char/tagname.c"
+
+#include "../../util/hbchar.h"
+#include "../../util/pipe.c"
+
+hbu_buffer_t hbsh_tagname(hbu_pipe_t pipe) {
+  hbu_buffer_t name = hbu_buffer_create();
+
+  while (1) {
+    hb_char_t c = hbu_pipe_peek(pipe);
+
+    if (!hb_r_tagname_check(c)) {
+      break;
+    }
+
+    hbu_buffer_append(name, c);
+
+    hbu_pipe_accept(pipe);
+  }
+
+  return name;
+}
+
+#endif // _HDR_HYPERBUILD_STREAM_HELPER_TAGNAME

src/main/c/stream/tag.c

@@ -0,0 +1,28 @@
+#ifndef _HDR_HYPERBUILD_STREAM_TAG
+#define _HDR_HYPERBUILD_STREAM_TAG
+
+#include "../rule/tag/voidtags.c"
+
+#include "../util/hbchar.h"
+#include "../util/pipe.c"
+
+#include "./helper/tagname.c"
+#include "./content.c"
+
+void hbs_tag(hbu_pipe_t pipe) {
+  hbu_pipe_require(pipe, '<');
+  hbu_buffer_t opening_name = hbsh_tagname(pipe);
+  // TODO
+  hbu_pipe_require(pipe, '>');
+
+  // Content
+  hbs_content(pipe);
+
+  // Closing tag for non-void
+  hbu_pipe_require(pipe, '<');
+  hbu_pipe_require(pipe, '/');
+  hbu_buffer_t closing_name = hbsh_tagname(pipe);
+  hbu_pipe_require(pipe, '>');
+}
+
+#endif // _HDR_HYPERBUILD_STREAM_TAG