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-rw-r--r--src/wgtpkg-mustach.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/src/wgtpkg-mustach.c b/src/wgtpkg-mustach.c
index 110f11b..45d94e8 100644
--- a/src/wgtpkg-mustach.c
+++ b/src/wgtpkg-mustach.c
@@ -21,10 +21,12 @@
#include <stdio.h>
#include <string.h>
+#include <errno.h>
#include <json-c/json.h>
#include "mustach.h"
+#include "verbose.h"
#define MAX_DEPTH 256
@@ -321,8 +323,29 @@ static struct mustach_itf itf = {
*/
int apply_mustach(const char *template, struct json_object *root, char **result, size_t *size)
{
+ int rc;
struct expl e;
+
e.root = root;
- return mustach(template, &itf, &e, result, size);
+ rc = mustach(template, &itf, &e, result, size);
+ if (rc < 0) {
+ static const char *msgs[] = {
+ "SYSTEM",
+ "UNEXPECTED_END",
+ "EMPTY_TAG",
+ "TAG_TOO_LONG",
+ "BAD_SEPARATORS",
+ "TOO_DEPTH",
+ "CLOSING",
+ "BAD_UNESCAPE_TAG"
+ };
+
+ rc = -(rc + 1);
+ ERROR("mustach error found: MUSTACH_ERROR_%s",
+ rc < 0 || rc >= (int)(sizeof msgs / sizeof * msgs) ? "???" : msgs[rc]);
+ rc = -1;
+ errno = EINVAL;
+ }
+ return rc;
}