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api.dsi.sophal.dz/hr_tickets/Python-3.9.6/Parser/listnode.c

@@ -0,0 +1,71 @@
+
+/* List a node on a file */
+
+#include "Python.h"
+#include "pycore_interp.h"        // PyInterpreterState.parser
+#include "pycore_pystate.h"       // _PyInterpreterState_GET()
+#include "token.h"
+#include "node.h"
+
+/* Forward */
+static void list1node(FILE *, node *);
+static void listnode(FILE *, node *);
+
+void
+PyNode_ListTree(node *n)
+{
+    listnode(stdout, n);
+}
+
+static void
+listnode(FILE *fp, node *n)
+{
+    PyInterpreterState *interp = _PyInterpreterState_GET();
+
+    interp->parser.listnode.level = 0;
+    interp->parser.listnode.atbol = 1;
+    list1node(fp, n);
+}
+
+static void
+list1node(FILE *fp, node *n)
+{
+    PyInterpreterState *interp;
+
+    if (n == NULL)
+        return;
+    if (ISNONTERMINAL(TYPE(n))) {
+        int i;
+        for (i = 0; i < NCH(n); i++)
+            list1node(fp, CHILD(n, i));
+    }
+    else if (ISTERMINAL(TYPE(n))) {
+        interp = _PyInterpreterState_GET();
+        switch (TYPE(n)) {
+        case INDENT:
+            interp->parser.listnode.level++;
+            break;
+        case DEDENT:
+            interp->parser.listnode.level--;
+            break;
+        default:
+            if (interp->parser.listnode.atbol) {
+                int i;
+                for (i = 0; i < interp->parser.listnode.level; ++i)
+                    fprintf(fp, "\t");
+                interp->parser.listnode.atbol = 0;
+            }
+            if (TYPE(n) == NEWLINE) {
+                if (STR(n) != NULL)
+                    fprintf(fp, "%s", STR(n));
+                fprintf(fp, "\n");
+                interp->parser.listnode.atbol = 1;
+            }
+            else
+                fprintf(fp, "%s ", STR(n));
+            break;
+        }
+    }
+    else
+        fprintf(fp, "? ");
+}