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Diffstat (limited to '')
| -rw-r--r-- | xpcom/base/nsIDUtils.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/xpcom/base/nsIDUtils.h b/xpcom/base/nsIDUtils.h new file mode 100644 index 0000000000..ffb9d02f19 --- /dev/null +++ b/xpcom/base/nsIDUtils.h @@ -0,0 +1,32 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef XPCOM_BASE_NSIDUTILS_H_ +#define XPCOM_BASE_NSIDUTILS_H_ + +#include "nsID.h" +#include "nsString.h" +#include "nsTString.h" + +/** + * Trims the brackets around the nsID string, since it wraps its ID with + * brackets: {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}. + */ +template <typename T> +class NSID_TrimBrackets : public nsTAutoString<T> { + public: + explicit NSID_TrimBrackets(const nsID& aID) { + nsIDToCString toCString(aID); + // The string from nsIDToCString::get() includes a null terminator. + // Thus this trims 3 characters: `{`, `}`, and the null terminator. + this->AssignASCII(toCString.get() + 1, NSID_LENGTH - 3); + } +}; + +using NSID_TrimBracketsUTF16 = NSID_TrimBrackets<char16_t>; +using NSID_TrimBracketsASCII = NSID_TrimBrackets<char>; + +#endif // XPCOM_BASE_NSIDUTILS_H_ |