# HG changeset patch
# User Franz Glasner <fzglas.hg@dom66.de>
# Date 1777542081 -7200
# Node ID 6d8b813fb296ef854d4f53faf7ae445744890f0d
# Parent  f487f0d322a50548195751b4157a7f267eb01d03
Keyword constants like "True", "False", "Nil", "None", "Null" and "Empty"

diff -r f487f0d322a5 -r 6d8b813fb296 pygments_lexer_pseudocode2/algpseudocode.py
--- a/pygments_lexer_pseudocode2/algpseudocode.py	Thu Apr 30 09:51:30 2026 +0200
+++ b/pygments_lexer_pseudocode2/algpseudocode.py	Thu Apr 30 11:41:21 2026 +0200
@@ -223,6 +223,7 @@
             include("py-numbers"),
             (r"(?i)\\text\s*\{", LexBase.op_ignore, "text-in-expr"),
             include("remark"),
+            include("keyword-constants"),
             include("text-operators"),
             include("math-builtins"),
             include("py-name"),
@@ -233,6 +234,7 @@
             include("py-numbers"),
             (r"(?i)\\text\s*\{", LexBase.op_ignore, "text-in-expr"),
             include("remark"),
+            include("keyword-constants"),
             include("text-operators"),
             include("math-builtins"),
             include("py-name"),
@@ -281,6 +283,15 @@
                    suffix=r"\b"),
              Operator.Word),
         ],
+        "keyword-constants": [
+            (words(("True", "TRUE", "true", "False", "FALSE", "false",
+                    "None", "NONE", "non", "Nil", "NIL", "nil",
+                    "Null", "NULL", "null",
+                    "Empty", "EMPTY", "empty"),
+                   prefix=r"(?<!\.)",
+                   suffix=r"\b"),
+             Keyword.Constant),
+        ],
         "punctuation": [
             (r"[{}:(),;[\]]", Punctuation),
         ],