add config support

includes/tomlc17-R260618/simple/simple.c

@@ -0,0 +1,62 @@
+/*
+ * Parse the config file simple.toml:
+ *
+ * [server]
+ * host = "www.example.com"
+ * port = [8080, 8181, 8282]
+ *
+ */
+#include "../src/tomlc17.h"
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void error(const char *msg, const char *msg1) {
+  fprintf(stderr, "ERROR: %s%s\n", msg, msg1 ? msg1 : "");
+  exit(1);
+}
+
+int main() {
+  // Parse the toml file
+  toml_result_t result = toml_parse_file_ex("simple.toml");
+
+  // Check for parse error
+  if (!result.ok) {
+    error(result.errmsg, 0);
+  }
+
+  // Extract values
+  toml_datum_t host = toml_seek(result.toptab, "server.host");
+  toml_datum_t port = toml_seek(result.toptab, "server.port");
+
+  // Print server.host
+  if (host.type != TOML_STRING) {
+    error("missing or invalid 'server.host' property in config", 0);
+  }
+  printf("server.host = %s\n", host.u.s);
+
+  // Print server.port
+  if (port.type != TOML_ARRAY) {
+    error("missing or invalid 'server.port' property in config", 0);
+  }
+  printf("server.port = [");
+  for (int i = 0; i < port.u.arr.size; i++) {
+    toml_datum_t elem = port.u.arr.elem[i];
+    if (elem.type != TOML_INT64) {
+      error("server.port element not an integer", 0);
+    }
+    printf("%s%d", i ? ", " : "", (int)elem.u.int64);
+  }
+  printf("]\n");
+
+  // Negative test
+  toml_datum_t dummy = toml_seek(result.toptab, "server.dummy");
+  if (dummy.type != TOML_UNKNOWN) {
+    printf("Error: dummy element exists\n");
+    exit(1);
+  }
+
+  // Done!
+  toml_free(result);
+  return 0;
+}