core: Add support for pointer boxes

Pointer boxes are a way to manage memory and have all references
released after operation, this way they do not need to be manually
managed.

Signed-off-by: Chloe M. <chloe@aptel.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/core/lexer.c b/core/lexer.c
index 2eb50a1..e93c629 100644
--- a/core/lexer.c
+++ b/core/lexer.c
@@ -3,6 +3,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include "defconf/lexer.h"
+#include "defconf/ptrbox.h"
 
 /* Constants */
 #define MAX_KW_LEN 32
@@ -109,7 +110,7 @@ lexer_scan_ident(struct defconf_state *state, int lc)
         if (!isalnum(c) && c != '_') {
             lexer_putback(state, c);
             buf[bufind] = '\0';
-            return strdup(buf);
+            return ptrbox_strdup(&state->ptrbox, buf);
         }
 
         buf[bufind++] = c;
@@ -177,7 +178,6 @@ lexer_scan(struct defconf_state *state, struct token *result)
     /* Scan for an identifier */
     if ((ident = lexer_scan_ident(state, c)) != NULL) {
         if (lexer_check_kw(ident, result) == 0) {
-            free(ident);
             return 0;
         }