1 files changed, 180 insertions, 0 deletions
diff --git a/longbow/src/LongBow/private/longBow_String.c b/longbow/src/LongBow/private/longBow_String.c
new file mode 100644
index 00000000..1def87a1
--- /dev/null
+++ b/longbow/src/LongBow/private/longBow_String.c
@@ -0,0 +1,180 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ */
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include <LongBow/private/longBow_String.h>
+#include <LongBow/private/longBow_Memory.h>
+
+struct longbow_string {
+    char *buffer;
+    size_t cursor; // always the index of the nul terminating byte of the stored string.
+    size_t end; // always the index of the very last byte in buffer;
+};
+
+static size_t
+_longBowString_RemainingSpace(const LongBowString *string)
+{
+    size_t result = string->end - string->cursor;
+
+    return result;
+}
+
+LongBowString *
+longBowString_Create(const size_t initialSize)
+{
+    LongBowString *result = longBowMemory_Allocate(sizeof(LongBowString));
+    result->end = initialSize;
+    result->buffer = longBowMemory_Allocate(initialSize);
+    result->cursor = 0;
+
+    return result;
+}
+
+LongBowString *
+longBowString_CreateString(const char *string)
+{
+    LongBowString *result = longBowMemory_Allocate(sizeof(LongBowString));
+    result->end = strlen(string) + 1;
+    result->buffer = longBowMemory_StringCopy(string);
+    result->cursor = result->end - 1;
+    result->buffer[result->cursor] = 0;
+
+    return result;
+}
+
+LongBowString *
+longBowString_CreateFormat(const char *format, ...)
+{
+    va_list ap;
+    va_start(ap, format);
+    char *cString;
+    if (vasprintf(&cString, format, ap) == -1) {
+        return NULL;
+    }
+    va_end(ap);
+
+    LongBowString *string = longBowString_CreateString(cString);
+
+    free(cString);
+
+    return string;
+}
+
+void
+longBowString_Destroy(LongBowString **stringPtr)
+{
+    LongBowString *string = *stringPtr;
+    if (string != NULL) {
+        longBowMemory_Deallocate((void **) &string->buffer);
+        longBowMemory_Deallocate((void **) stringPtr);
+    }
+}
+
+LongBowString *
+longBowString_Append(LongBowString *string, const char *value)
+{
+    size_t length = strlen(value) + 1;
+
+    if (_longBowString_RemainingSpace(string) < length) {
+        size_t size = string->end + length;
+        string->buffer = longBowMemory_Reallocate(string->buffer, size);
+        string->end = size - 1;
+    }
+    strcpy(&string->buffer[string->cursor], value);
+    string->cursor += (length - 1);
+    string->buffer[string->cursor] = 0;
+
+    return string;
+}
+
+LongBowString *
+longBowString_Format(LongBowString *string, const char *format, ...)
+{
+    LongBowString *result = NULL;
+
+    va_list ap;
+    va_start(ap, format);
+
+    char *cString;
+    int status = vasprintf(&cString, format, ap);
+    va_end(ap);
+    if (status != -1) {
+        result = longBowString_Append(string, cString);
+        free(cString);
+    } else {
+        result = NULL;
+    }
+
+    return result;
+}
+
+char *
+longBowString_ToString(const LongBowString *string)
+{
+    char *result = strndup(string->buffer, string->end);
+    return result;
+}
+
+bool
+longBowString_StartsWith(const char *string, const char *prefix)
+{
+    bool result = strncmp(string, prefix, strlen(prefix)) == 0;
+    return result;
+}
+
+bool
+longBowString_Equals(const char *string, const char *other)
+{
+    return strcmp(string, other) == 0;
+}
+
+bool
+longBowString_Write(const LongBowString *string, FILE *fp)
+{
+    bool result = false;
+    size_t nwrite = string->end;
+
+    if (fwrite(string->buffer, sizeof(char), string->end, fp) == nwrite) {
+        result = true;
+    }
+
+    return result;
+}
+
+LongBowArrayList *
+longBowString_Tokenise(const char *string, const char *separators)
+{
+    LongBowArrayList *result = longBowArrayList_Create(longBowMemory_Deallocate);
+    if (string != NULL) {
+        char *workingCopy = longBowMemory_StringCopy(string);
+
+        char *p = strtok(workingCopy, separators);
+        while (p) {
+            longBowArrayList_Add(result, longBowMemory_StringCopy(p));
+            p = strtok(NULL, separators);
+        }
+
+        longBowMemory_Deallocate((void **) &workingCopy);
+    }
+
+    return result;
+}