Update api_test: test enumeration of parameters.

1 files changed, 54 insertions, 1 deletions

diff --git a/demos/c/api_test.c b/demos/c/api_test.c
index 0577c128c..249339093 100644
--- a/demos/c/api_test.c
+++ b/demos/c/api_test.c
@@ -839,6 +839,45 @@ failearly:
     return code;
 }
 
+char *types[] = {
+    "null",
+    "bool",
+    "int",
+    "float",
+    "name",
+    "string",
+    "long",
+    "i64",
+    "size_t",
+    "parsed"
+};
+
+static int
+list_params(void *instance)
+{
+    void *iter = NULL;
+    char *key;
+    gs_set_param_type type;
+    char buffer[1024];
+    int code;
+
+    while ((code = gsapi_enumerate_params(instance, &iter, &key, &type)) == 0) {
+        printf("Key=%s, type=%s: ", key, type >= 0 && type <= 9 ? types[type] : "invalid");
+        code = gsapi_get_param(instance, gs_spt_parsed, key, NULL);
+        if (code < 0)
+            break;
+        if (code > sizeof(buffer)) {
+            printf("<overly long value>\n");
+            continue;
+        }
+        code = gsapi_get_param(instance, gs_spt_parsed, key, buffer);
+        if (code < 0)
+            break;
+        printf("%s\n", buffer);
+    }
+    return code;
+}
+
 static int
 param_test(const char *dev, char *outfile)
 {
@@ -870,6 +909,13 @@ param_test(const char *dev, char *outfile)
         goto fail;
     }
 
+    /* List the params: */
+    code = list_params(instance);
+    if (code < 0) {
+        printf("Error %d while listing params\n", code);
+        goto fail;
+    }
+
     /* Run our test. */
     code = gsapi_init_with_args(instance, argc, argv);
     if (code < 0) {
@@ -921,11 +967,18 @@ param_test(const char *dev, char *outfile)
         printf("Bad buffer return");
         goto fail;
     }
-    if (strcmp(buffer, "<</Sp#20ce/D#7Fl/Baz<0123>/Bar<313233>/Foo[/A/B/C/D/E]/VSamples[1 1 1 1]/HSamples[1 1 1 1]/Blend 0/QFactor 0.1>>")) {
+    if (strcmp(buffer, "<</Sp#20ce/D#7Fl/Baz<0123>/Bar(123)/Foo[/A/B/C/D/E]/VSamples[1 1 1 1]/HSamples[1 1 1 1]/Blend 0/QFactor 0.1>>")) {
         printf("Bad value return");
         goto fail;
     }
 
+    /* List the params: */
+    code = list_params(instance);
+    if (code < 0) {
+        printf("Error %d in while listing params\n", code);
+        goto fail;
+    }
+
     /* Close the interpreter down (important, or we will leak!) */
     code = gsapi_exit(instance);
     if (code < 0) {