Added string vector(argv like) functions

2013-09-04 18:10:26 +02:00
parent a5b8d53177
commit 216dfe879d
4 changed files with 291 additions and 1 deletions
@@ -0,0 +1,107 @@
+#include <string.h>
+#include <stdlib.h>
+#include "ucore/strvec.h"
+
+void uc_strv_init(struct UCStrv *strv)
+{
+    strv->cnt = 0;
+    strv->allocated = 0;
+    strv->strings = NULL;
+}
+
+int uc_strv_grow(struct UCStrv *strv, size_t cnt)
+{
+
+    size_t allocate = strv->allocated + cnt;
+    void *tmp = realloc(strv->strings, sizeof *strv->strings * allocate);
+
+    if (tmp == NULL) {
+        return -1;
+    }
+    strv->strings = tmp;
+    strv->allocated = allocate;
+
+    return 0;
+}
+
+int uc_strv_expand(struct UCStrv *strv)
+{
+    int rc = 0;
+
+    if (strv->cnt >= strv->allocated) {
+        rc = uc_strv_grow(strv, 1);
+    }
+
+    return rc;
+}
+
+int uc_strv_append(struct UCStrv *strv, const char *str)
+{
+    int rc;
+    char *dup;
+    
+    rc = uc_strv_expand(strv);
+    if (rc != 0) {
+        return rc;
+    }
+
+    dup = strdup(str);
+    if (dup == NULL) {
+        return -2;
+    }
+
+    strv->strings[strv->cnt] = dup;
+    strv->cnt++;
+
+    return 0;
+}
+
+int uc_strv_append_nocopy(struct UCStrv *strv, char *str)
+{
+    int rc;
+    rc = uc_strv_expand(strv);
+
+    if (rc != 0) {
+        return rc;
+    }
+
+    strv->strings[strv->cnt] = str;
+    strv->cnt++;
+
+    return 0;
+}
+
+int uc_strv_null_terminate(struct UCStrv *strv)
+{
+    int rc;
+
+    rc = uc_strv_expand(strv);
+    if (rc != 0) {
+        return rc;
+    }
+
+    strv->strings[strv->cnt] = NULL;
+    strv->cnt++;
+
+    return 0;
+}
+
+void uc_strv_clear(struct UCStrv *strv)
+{
+    size_t i;
+
+    for (i = 0; i < strv->cnt; i++) {
+        free(strv->strings[i]);
+        strv->strings[i] = NULL;
+    }
+
+    strv->cnt = 0;
+}
+
+void uc_strv_destroy(struct UCStrv *strv)
+{
+    uc_strv_clear(strv);
+    free(strv->strings);
+    strv->strings = NULL;
+}
+