disable keywords through JSON configuration

conf/e2/config.json

@@ -4,6 +4,9 @@
 		"prefixes.json",
         "e2/terrains.json"
 	],
+    "disable": [
+        "pay"
+    ],
     "settings": {
         "game.id": 2,
         "game.name": "Eressea",

src/kernel/jsonconf.c

@@ -501,6 +501,17 @@ static void json_prefixes(cJSON *json) {
     }
 }
 
+static void json_disable_keywords(cJSON *json) {
+    cJSON *child;
+    if (json->type != cJSON_Array) {
+        log_error("disabled is not a json array: %d", json->type);
+        return;
+    }
+    for (child = json->child; child; child = child->next) {
+        disable_keyword_str(child->valuestring);
+    }
+}
+
 static void json_terrains(cJSON *json) {
     cJSON *child;
     if (json->type != cJSON_Object) {
@@ -854,6 +865,9 @@ void json_config(cJSON *json) {
         else if (strcmp(child->string, "prefixes") == 0) {
             json_prefixes(child);
         }
+        else if (strcmp(child->string, "disable") == 0) {
+            json_disable_keywords(child);
+        }
         else if (strcmp(child->string, "terrains") == 0) {
             json_terrains(child);
             init_terrains();

src/kernel/jsonconf.test.c

@@ -99,6 +99,25 @@ static void test_prefixes(CuTest * tc)
     test_cleanup();
 }
 
+static void test_disable(CuTest * tc)
+{
+    const char * data = "{\"disable\": [ "
+        "\"pay\","
+        "\"besiege\""
+        "]}";
+    cJSON *json = cJSON_Parse(data);
+
+    test_cleanup();
+    CuAssertTrue(tc, !keyword_disabled(K_BANNER));
+    CuAssertTrue(tc, !keyword_disabled(K_PAY));
+    CuAssertTrue(tc, !keyword_disabled(K_BESIEGE));
+    json_config(json);
+    CuAssertTrue(tc, !keyword_disabled(K_BANNER));
+    CuAssertTrue(tc, keyword_disabled(K_PAY));
+    CuAssertTrue(tc, keyword_disabled(K_BESIEGE));
+    test_cleanup();
+}
+
 static void test_races(CuTest * tc)
 {
     const char * data = "{\"races\": { \"orc\" : { "
@@ -576,6 +595,7 @@ CuSuite *get_jsonconf_suite(void)
     SUITE_ADD_TEST(suite, test_flags);
     SUITE_ADD_TEST(suite, test_settings);
     SUITE_ADD_TEST(suite, test_prefixes);
+    SUITE_ADD_TEST(suite, test_disable);
     SUITE_ADD_TEST(suite, test_infinitive_from_config);
     return suite;
 }

src/kernel/xmlreader.c

@@ -2074,16 +2074,7 @@ static int parse_main(xmlDocPtr doc)
             xmlChar *propName = xmlGetProp(node, BAD_CAST "name");
 
             if (xml_bvalue(node, "disable", false)) {
-                int k;
-                for (k = 0; k != MAXKEYWORDS; ++k) {
-                    if (strcmp(keywords[k], (const char *)propName) == 0) {
-                        enable_keyword(k, false);
-                        break;
-                    }
-                }
-                if (k == MAXKEYWORDS) {
-                    log_error("trying to disable unknown command %s\n", (const char *)propName);
-                }
+                disable_keyword_str((const char *)propName);
             }
             xmlFree(propName);
         }

src/keyword.c

@@ -2,8 +2,9 @@
 #include <kernel/config.h>
 #include "keyword.h"
 
-#include "util/language.h"
-#include "util/umlaut.h"
+#include <util/language.h>
+#include <util/umlaut.h>
+#include <util/log.h>
 
 #include <critbit.h>
 
@@ -73,6 +74,20 @@ keyword_t get_keyword(const char *s, const struct locale *lang) {
 
 static bool disabled_kwd[MAXKEYWORDS];
 
+void disable_keyword_str(const char *str) {
+    // FIXME: this is slower than balls.
+    int k;
+    for (k = 0; k != MAXKEYWORDS; ++k) {
+        if (strcmp(keywords[k], str) == 0) {
+            enable_keyword(k, false);
+            break;
+        }
+    }
+    if (k == MAXKEYWORDS) {
+        log_error("trying to disable unknown command %s\n", str);
+    }
+}
+
 void enable_keyword(keyword_t kwd, bool enabled) {
     assert(kwd < MAXKEYWORDS);
     disabled_kwd[kwd] = !enabled;

src/keyword.h

@@ -81,6 +81,7 @@ extern "C"
     void init_keyword(const struct locale *lang, keyword_t kwd, const char *str);
     bool keyword_disabled(keyword_t kwd);
     void enable_keyword(keyword_t kwd, bool enabled);
+    void disable_keyword_str(const char *str);
     const char *keyword(keyword_t kwd);
     // #define keyword(kwd) mkname("keyword", keywords[kwd])
 

src/tests.c

@@ -71,6 +71,8 @@ struct unit *test_create_unit(struct faction *f, struct region *r)
 
 void test_cleanup(void)
 {
+    int i;
+
     free_terrains();
     free_resources();
     global.functions.maintenance = NULL;
@@ -87,6 +89,9 @@ void test_cleanup(void)
     free_seen();
     free_prefixes();
     mt_clear();
+    for (i = 0; i != MAXKEYWORDS; ++i) {
+        enable_keyword(i, true);
+    }
     if (!mt_find("missing_message")) {
         mt_register(mt_new_va("missing_message", "name:string", 0));
         mt_register(mt_new_va("missing_feedback", "unit:unit", "region:region", "command:order", "name:string", 0));