Added xml_template_apply

lib/src/clixon_string.c

@@ -121,6 +121,72 @@ clicon_strsep(char *string,
     return vec;
 }
 
+/*! Split string using start and stop delimiter strings usable for variable substitution
+ *
+ * Example: "foo ${NAME} bar"
+ * where delim1="${" and delim2="}"
+ * returns vec: "foo ", "NAME", "bar"
+ * Both delim1 and delim2 must match
+ * @param[in]  str
+ * @param[in]  delim1  prefix delimiter string
+ * @param[in]  delim2  postfix delimiter string
+ * @param[out] cvp     Created cligen variable vector, deallocate w cvec_free
+ * @retval     0       OK
+ * @retval    -1       Error
+ */
+int
+clixon_strsep2(char   *str,
+               char   *delim1,
+               char   *delim2,
+               char ***vcp,
+               int    *nvec)
+{
+    int   retval = -1;
+    size_t sz;
+    char **vec = NULL;
+    char  *s1;
+    char  *s2;
+    int    nr = 0;
+    char  *ptr;
+    int    i;
+
+    s1 = str;
+    while ((s1 = strstr(s1, delim1)) != NULL){
+        if ((s2 = strstr(s1+strlen(delim1), delim2)) != NULL)
+            nr += 2;
+        s1 = s2 + strlen(delim2);
+    }
+    /* alloc vector and append copy of string */
+    sz = (nr+1)* sizeof(char*) + strlen(str)+1;
+    if ((vec = (char**)malloc(sz)) == NULL){
+        clixon_err(OE_UNIX, errno, "malloc");
+        goto done;
+    }
+    memset(vec, 0, sz);
+    ptr = (char*)vec + (nr+1)* sizeof(char*); /* this is where ptr starts */
+    strcpy(ptr, str);
+    i = 0;
+    s1 = ptr;
+    vec[i++] = ptr;
+    while ((s1 = strstr(s1, delim1)) != NULL){
+        if ((s2 = strstr(s1+strlen(delim1), delim2)) != NULL){
+            *s1 = '\0';
+            *s2 = '\0';
+            vec[i++] = s1 + strlen(delim1);
+            vec[i++] = s2 + strlen(delim2);
+        }
+        s1 = s2 + strlen(delim2);
+    }
+    *vcp = vec;
+    ptr = NULL;
+    *nvec = i;
+    retval = 0;
+ done:
+    if (ptr)
+        free(ptr);
+    return retval;
+}
+
 /*! Concatenate elements of a string array into a string. 
  *
  * An optional delimiter string can be specified which will be inserted between