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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 20:01:36 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 20:01:36 +0000 |
commit | 62e4c68907d8d33709c2c1f92a161dff00b3d5f2 (patch) | |
tree | adbbaf3acf88ea08f6eeec4b75ee98ad3b07fbdc /src/base/is_utf8.hh | |
parent | Initial commit. (diff) | |
download | lnav-62e4c68907d8d33709c2c1f92a161dff00b3d5f2.tar.xz lnav-62e4c68907d8d33709c2c1f92a161dff00b3d5f2.zip |
Adding upstream version 0.11.2.upstream/0.11.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/base/is_utf8.hh')
-rw-r--r-- | src/base/is_utf8.hh | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/base/is_utf8.hh b/src/base/is_utf8.hh new file mode 100644 index 0000000..56a959f --- /dev/null +++ b/src/base/is_utf8.hh @@ -0,0 +1,59 @@ +/* + * is_utf8 is distributed under the following terms: + * + * Copyright (c) 2013 Palard Julien. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _IS_UTF8_H +#define _IS_UTF8_H + +#include <stdlib.h> +#include <sys/types.h> + +#include "intern_string.hh" +#include "optional.hpp" + +struct utf8_scan_result { + const char* usr_message{nullptr}; + size_t usr_faulty_bytes{0}; + string_fragment usr_valid_frag{string_fragment::invalid()}; + nonstd::optional<string_fragment> usr_remaining; + bool usr_has_ansi{false}; + + const char* remaining_ptr(const string_fragment& frag) const + { + if (this->usr_remaining) { + return this->usr_remaining->begin(); + } else { + return nullptr; + } + } + bool is_valid() const { return this->usr_message == nullptr; } +}; + +utf8_scan_result is_utf8(string_fragment frag, + nonstd::optional<unsigned char> terminator + = nonstd::nullopt); + +#endif /* _IS_UTF8_H */ |