# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1349425533 -7200
# Node ID 48ca036d7d9caca1e6a1b22cb612a0ae870ac550
# Parent  dd03226c1a6bcd9a55fa2e2b919dd07164bee87e
implemented encoder/decoder for map store/load

diff -r dd03226c1a6b -r 48ca036d7d9c test/map_tests.c
--- a/test/map_tests.c	Thu Oct 04 19:46:10 2012 +0200
+++ b/test/map_tests.c	Fri Oct 05 10:25:33 2012 +0200
@@ -141,6 +141,17 @@
     ucx_map_free(map);
 }
 
+void* test_ucx_map_store_load_encdec(void *value, void *data) {
+    char *string = (char*) value;
+    size_t n = strlen(string);
+    char *encoded = malloc(n+1);
+    for (int i = 0 ; i < n ; i++) {
+        encoded[i] = string[n-1-i];
+    }
+    encoded[n] = 0;
+    return encoded;
+}
+
 UCX_TEST_IMPLEMENT(test_ucx_map_store_load) {
     UcxMap *map = ucx_map_new(4);
 
@@ -155,14 +166,14 @@
     int r;
 
     fwrite(" # comment test\n", 1, 16, f);
-    r = ucx_map_store(map, f);
+    r = ucx_map_store_enc(map, f, test_ucx_map_store_load_encdec, NULL);
     fwrite("!discard this", 1, 13, f);
 
     fclose(f);
     ucx_map_free(map);
     map = ucx_map_new(1);
     f = fopen("test_ucx_map_store", "r");
-    r += ucx_map_load(map, f);
+    r += ucx_map_load_enc(map, f, test_ucx_map_store_load_encdec, NULL);
 
     UCX_TEST_BEGIN
     char *value;
diff -r dd03226c1a6b -r 48ca036d7d9c ucx/map.c
--- a/ucx/map.c	Thu Oct 04 19:46:10 2012 +0200
+++ b/ucx/map.c	Fri Oct 05 10:25:33 2012 +0200
@@ -207,7 +207,7 @@
     return 1;
 }
 
-int ucx_map_load(UcxMap *map, FILE *f) {
+int ucx_map_load_enc(UcxMap *map, FILE *f, copy_func decoder, void* decdata) {
 
     int c; int r, n;
 
@@ -267,7 +267,14 @@
         } while ((c = fgetc(f)) > 0);
         value[r] = 0;
         while (value[--r] < 33) value[r] = 0;
-        value = realloc(value, r+2);
+
+        if (decoder == NULL) {
+            value = realloc(value, r+2);
+        } else {
+            void *decoded = decoder(value, decdata);
+            free(value);
+            value = decoded;
+        }
 
         ucx_map_cstr_put(map, key, value);
         free(key);
@@ -276,7 +283,7 @@
     return 0;
 }
 
-int ucx_map_store(UcxMap *map, FILE *f) {
+int ucx_map_store_enc(UcxMap *map, FILE *f, copy_func encoder, void *encdata) {
     UcxMapIterator iter = ucx_map_iterator(map);
     char *k, *v;
     sstr_t key, value;
@@ -284,7 +291,12 @@
 
     UCX_MAP_FOREACH(v, iter) {
         k = (char*) iter.cur->key.data;
-        key = sstr(k); value = sstr(v);
+        key = sstr(k);
+        if (encoder == NULL) {
+            value = sstr(v);
+        } else {
+            value = sstr(encoder(v, encdata));
+        }
 
         written = 0;
         written += fwrite(key.ptr, 1, key.length, f);
@@ -292,6 +304,10 @@
         written += fwrite(value.ptr, 1, value.length, f);
         written += fwrite("\n", 1, 1, f);
 
+        if (encoder != NULL) {
+            free(value.ptr);
+        }
+
         if (written != key.length + value.length + 4) return 1;
     }
 
diff -r dd03226c1a6b -r 48ca036d7d9c ucx/map.h
--- a/ucx/map.h	Thu Oct 04 19:46:10 2012 +0200
+++ b/ucx/map.h	Fri Oct 05 10:25:33 2012 +0200
@@ -66,14 +66,13 @@
 
 int ucx_map_iter_next(UcxMapIterator *i, void **elm);
 
-/* use for string maps only, values are not encoded */
-int ucx_map_load(UcxMap *map, FILE *f);
-int ucx_map_store(UcxMap *map, FILE *f);
+/* use macros for string maps only, values are not encoded */
+#define ucx_map_load(map, f) ucx_map_load_enc(map, f, NULL, NULL)
+#define ucx_map_store(map, f) ucx_map_store_enc(map, f, NULL, NULL)
 
-/* TODO:
 int ucx_map_load_enc(UcxMap *map, FILE *f, copy_func decoder, void* decdata);
+/* encoders shall provide null terminated strings*/
 int ucx_map_store_enc(UcxMap *map, FILE *f, copy_func encoder, void* encdata);
- */
 
 #ifdef	__cplusplus
 }