ref: split parser into separate files

src/compiler/parser/pa_power.c

@@ -0,0 +1,41 @@
+#include <compiler/fzl_parser.h>
+#include <compiler/internals/parser.h>
+#include <stdio.h>
+
+// Parse power expression
+fzl_node_t *pa_power(fzl_parser_t *parser)
+{
+  if (!parser)
+    return NULL;
+
+  fzl_node_t *left  = pa_unary(parser);
+  fzl_node_t *right = NULL;
+
+  if (!left)
+    return NULL;
+
+  if (is(parser, FZL_TOKTYPE_CARET))
+  {
+    fzl_token_t *caret = consume(parser);
+
+    right = pa_unary(parser);
+    if (!right)
+    {
+      fzl_freeast(left);
+      if (!plast_err[0])
+        snprintf(plast_err, sizeof(plast_err),
+                 "'%s': expected expression at %ld:%ld",
+                 last_known_tok->filename, last_known_tok->ln,
+                 last_known_tok->cn);
+      return NULL;
+    }
+
+    fzl_node_t *node      = fzl_mknode(FZL_NODETYPE_POW, caret);
+    node->binary_op.left  = left;
+    node->binary_op.right = right;
+
+    left = node;
+  }
+
+  return left;
+}