1 files changed, 41 insertions, 0 deletions
diff --git a/src/prc1/kw.c b/src/prc1/kw.c
new file mode 100644
index 0000000..d5e22ca
--- /dev/null
+++ b/src/prc1/kw.c
@@ -0,0 +1,41 @@
+#include "prv.h"
+#include <stddef.h>
+#include <string.h>
+
+static const char *kws[] =
+{
+    /* headers */
+    "public", "function",
+    /* sections */
+    "types", "storage", "linkage", "procedure", "locals", "globals", "imports",
+    /* types */
+    "union", "struct", "constant", "alias", "prototype",
+    /* operators */
+    "add", "subtract", "multiply", "divide", "xor", "bitor", "bitand",
+    "leftshift", "rightshift", "address", "size", "call", "set",
+    /* procedures */
+    "using", "returning",
+    /* built-in functions */
+    "display", "warn",
+    /* flow control */
+    "while", "if", "else", "end", "return", "go", "label", "default",
+    /* prepositions */
+    "by", "from", "to", "than", "of", "etc",
+    /* comparators */
+    "is", "not", "equal", "greater", "smaller", "and", "or",
+    /* built-in types */
+    "void", "array", "pointer",
+    /* built-in signed types */
+    "byte", "halfword", "word", "long",
+    /* built-in unsigned types */
+    "ubyte", "uhalfword", "uword", "ulong"
+};
+
+int kw(const char *s)
+{
+    for (size_t i = 0; i < sizeof kws / sizeof *kws; i++)
+        if (!strcmp(s, kws[i]))
+            return 1;
+
+    return 0;
+}