void g_string_append_c(GString* baseString, char appendedCharacter)
{
size_t newSizeNeeded = baseString->currentStringLength + 1;
ensureStringBufferCanHold(baseString, newSizeNeeded);
baseString->str[baseString->currentStringLength] = appendedCharacter;
baseString->currentStringLength++;
baseString->str[baseString->currentStringLength] = '\0';
}
void g_string_append(GString* baseString, char* appendedString)
{
if ((appendedString != NULL) && (strlen(appendedString) > 0))
{
size_t appendedStringLength = strlen(appendedString);
size_t newStringLength = baseString->currentStringLength + appendedStringLength;
ensureStringBufferCanHold(baseString, newStringLength);
strncat(baseString->str + baseString->currentStringLength, appendedString, appendedStringLength);
baseString->currentStringLength = newStringLength;
}
}
void Test_ensureStringBufferCanHold(CuTest* tc) {
char * test = "foo";
DString * result = d_string_new(test);
ensureStringBufferCanHold(result, 1024);
CuAssertIntEquals(tc, 2048, result->currentStringBufferSize);
ensureStringBufferCanHold(result, 1024);
CuAssertIntEquals(tc, 2048, result->currentStringBufferSize);
/* This becomes 0 after we add 1 for the '\0' */
ensureStringBufferCanHold(result, -1);
CuAssertIntEquals(tc, 2048, result->currentStringBufferSize);
ensureStringBufferCanHold(result, 1024 * 1024 - 1);
CuAssertIntEquals(tc, 1024 * 1024, result->currentStringBufferSize);
ensureStringBufferCanHold(result, 1024 * 1024 - 1);
CuAssertIntEquals(tc, 1024 * 1024, result->currentStringBufferSize);
ensureStringBufferCanHold(NULL, 1024);
d_string_free(result, true);
}
void g_string_append(GString* baseString, char* appendedString)
{
if ((appendedString != NULL) && (strlen(appendedString) > 0))
{
size_t appendedStringLength = strlen(appendedString);
size_t newStringLength = baseString->currentStringLength + appendedStringLength;
ensureStringBufferCanHold(baseString, newStringLength);
/* We already know where the current string ends, so pass that as the starting address for strncat */
strncat(baseString->str + baseString->currentStringLength, appendedString, appendedStringLength);
baseString->currentStringLength = newStringLength;
}
}
void g_string_prepend(GString* baseString, char* prependedString)
{
if ((prependedString != NULL) && (strlen(prependedString) > 0))
{
size_t prependedStringLength = strlen(prependedString);
size_t newStringLength = baseString->currentStringLength + prependedStringLength;
ensureStringBufferCanHold(baseString, newStringLength);
memmove(baseString->str + prependedStringLength, baseString->str, baseString->currentStringLength);
strncpy(baseString->str, prependedString, prependedStringLength);
baseString->currentStringLength = newStringLength;
baseString->str[baseString->currentStringLength] = '\0';
}
}
/// Append null-terminated string to end of dynamic string
void d_string_append(DString * baseString, const char * appendedString) {
if (baseString && appendedString) {
size_t appendedStringLength = strlen(appendedString);
if (appendedStringLength > 0) {
size_t newStringLength = baseString->currentStringLength + appendedStringLength;
ensureStringBufferCanHold(baseString, newStringLength);
/* We already know where the current string ends, so pass that as the starting address for strncat */
strncat(baseString->str + baseString->currentStringLength, appendedString, appendedStringLength);
baseString->currentStringLength = newStringLength;
}
}
}
/// Prepend null-terminated string to end of dynamic string
void d_string_prepend(DString * baseString, const char * prependedString) {
if (baseString && prependedString) {
size_t prependedStringLength = strlen(prependedString);
if (prependedStringLength > 0) {
size_t newStringLength = baseString->currentStringLength + prependedStringLength;
ensureStringBufferCanHold(baseString, newStringLength);
memmove(baseString->str + prependedStringLength, baseString->str, baseString->currentStringLength);
strncpy(baseString->str, prependedString, prependedStringLength);
baseString->currentStringLength = newStringLength;
baseString->str[baseString->currentStringLength] = '\0';
}
}
}
/// Insert single character inside dynamic string
void d_string_insert_c(DString * baseString, size_t pos, char insertedCharacter) {
if (baseString && insertedCharacter) {
if (pos > baseString->currentStringLength) {
pos = baseString->currentStringLength;
}
size_t newSizeNeeded = baseString->currentStringLength + 1;
ensureStringBufferCanHold(baseString, newSizeNeeded);
/* Shift following string to 'right' */
memmove(baseString->str + pos + 1, baseString->str + pos, baseString->currentStringLength - pos);
baseString->str[pos] = insertedCharacter;
baseString->currentStringLength++;
baseString->str[baseString->currentStringLength] = '\0';
}
}
/// Append array of characters to end of dynamic string
void d_string_append_c_array(DString * baseString, const char * appendedChars, size_t bytes) {
if (baseString && appendedChars) {
if (bytes == -1) {
// This is the same as regular append
d_string_append(baseString, appendedChars);
} else {
if (appendedChars) {
size_t newSizeNeeded = baseString->currentStringLength + bytes;
ensureStringBufferCanHold(baseString, newSizeNeeded);
memcpy((void*)baseString->str + baseString->currentStringLength, appendedChars, bytes);
baseString->currentStringLength = newSizeNeeded;
baseString->str[newSizeNeeded] = '\0';
}
}
}
}
/// Insert null-terminated string inside dynamic string
void d_string_insert(DString * baseString, size_t pos, const char * insertedString) {
if (baseString && insertedString) {
size_t insertedStringLength = strlen(insertedString);
if (insertedStringLength > 0) {
if (pos > baseString->currentStringLength) {
pos = baseString->currentStringLength;
}
size_t newStringLength = baseString->currentStringLength + insertedStringLength;
ensureStringBufferCanHold(baseString, newStringLength);
/* Shift following string to 'right' */
memmove(baseString->str + pos + insertedStringLength, baseString->str + pos, baseString->currentStringLength - pos);
strncpy(baseString->str + pos, insertedString, insertedStringLength);
baseString->currentStringLength = newStringLength;
baseString->str[baseString->currentStringLength] = '\0';
}
}
}
