mirror of
https://github.com/Kitware/CMake.git
synced 2026-02-21 14:40:26 -06:00
773b36e5d4
Code extracted from:
http://public.kitware.com/KWSys.git
at commit 18c654114de3aa65429542f95308720bc68f9231 (master).
Upstream Shortlog
-----------------
Brad King (14):
37306a1c FStream: Quiet unused argument warning
15e90a3c Sort includes to stabilize include order w.r.t. clang-format
26509227 Copyright.txt: Add notice of copyright by contributors
fc42d3f2 Add temporary script to filter license notices
c41c1bc4 Simplify KWSys per-source license notices
1d4c0b4a Remove temporary script that filtered license notices
a4f5ef79 SystemInformation: Remove stray comment
8649a886 kwsysPrivate: Protect KWSYS_HEADER macro from clang-format
89b98af5 Configure clang-format for KWSys source tree
547dacad Add a script to run clang-format on the entire source tree
aa94be0c CONTRIBUTING: Add a section on coding style
6604c4b6 Empty commit at end of history preceding clang-format style transition
2b3e2b1c Tell Git to not export 'clang-format' infrastructure
18c65411 FStream: Include Configure.hxx before other headers
Kitware Robot (1):
6c973b46 Revise C++ coding style using clang-format
56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing#kwsys for details. */
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#include "kwsysPrivate.h"
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#include KWSYS_HEADER(FStream.hxx)
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// Work-around CMake dependency scanning limitation. This must
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// duplicate the above list of headers.
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#if 0
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#include "FStream.hxx.in"
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#endif
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namespace KWSYS_NAMESPACE {
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namespace FStream {
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BOM ReadBOM(std::istream& in)
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{
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if (!in.good()) {
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return BOM_None;
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}
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unsigned long orig = in.tellg();
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unsigned char bom[4];
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in.read(reinterpret_cast<char*>(bom), 2);
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if (!in.good()) {
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in.clear();
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in.seekg(orig);
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return BOM_None;
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}
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if (bom[0] == 0xEF && bom[1] == 0xBB) {
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in.read(reinterpret_cast<char*>(bom + 2), 1);
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if (in.good() && bom[2] == 0xBF) {
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return BOM_UTF8;
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}
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} else if (bom[0] == 0xFE && bom[1] == 0xFF) {
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return BOM_UTF16BE;
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} else if (bom[0] == 0x00 && bom[1] == 0x00) {
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in.read(reinterpret_cast<char*>(bom + 2), 2);
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if (in.good() && bom[2] == 0xFE && bom[3] == 0xFF) {
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return BOM_UTF32BE;
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}
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} else if (bom[0] == 0xFF && bom[1] == 0xFE) {
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unsigned long p = in.tellg();
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in.read(reinterpret_cast<char*>(bom + 2), 2);
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if (in.good() && bom[2] == 0x00 && bom[3] == 0x00) {
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return BOM_UTF32LE;
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}
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in.seekg(p);
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return BOM_UTF16LE;
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}
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in.clear();
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in.seekg(orig);
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return BOM_None;
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}
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} // FStream namespace
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} // KWSYS_NAMESPACE
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