1 //===- FormatUtil.cpp ----------------------------------------- *- C++ --*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "FormatUtil.h"
11 #include "llvm/ADT/STLExtras.h"
12 #include "llvm/ADT/StringExtras.h"
13 #include "llvm/Support/FormatAdapters.h"
14 #include "llvm/Support/FormatVariadic.h"
17 using namespace llvm::pdb;
19 std::string llvm::pdb::truncateStringBack(StringRef S, uint32_t MaxLen) {
20 if (MaxLen == 0 || S.size() <= MaxLen || S.size() <= 3)
24 uint32_t FinalLen = std::min<size_t>(S.size(), MaxLen - 3);
25 S = S.take_front(FinalLen);
26 return std::string(S) + std::string("...");
29 std::string llvm::pdb::truncateStringMiddle(StringRef S, uint32_t MaxLen) {
30 if (MaxLen == 0 || S.size() <= MaxLen || S.size() <= 3)
34 uint32_t FinalLen = std::min<size_t>(S.size(), MaxLen - 3);
35 StringRef Front = S.take_front(FinalLen / 2);
36 StringRef Back = S.take_back(Front.size());
37 return std::string(Front) + std::string("...") + std::string(Back);
40 std::string llvm::pdb::truncateStringFront(StringRef S, uint32_t MaxLen) {
41 if (MaxLen == 0 || S.size() <= MaxLen || S.size() <= 3)
45 S = S.take_back(MaxLen - 3);
46 return std::string("...") + std::string(S);
49 std::string llvm::pdb::truncateQuotedNameFront(StringRef Label, StringRef Name,
51 uint32_t RequiredExtraChars = Label.size() + 1 + 2;
52 if (MaxLen == 0 || RequiredExtraChars + Name.size() <= MaxLen)
53 return formatv("{0} \"{1}\"", Label, Name).str();
55 assert(MaxLen >= RequiredExtraChars);
56 std::string TN = truncateStringFront(Name, MaxLen - RequiredExtraChars);
57 return formatv("{0} \"{1}\"", Label, TN).str();
60 std::string llvm::pdb::truncateQuotedNameBack(StringRef Label, StringRef Name,
62 uint32_t RequiredExtraChars = Label.size() + 1 + 2;
63 if (MaxLen == 0 || RequiredExtraChars + Name.size() <= MaxLen)
64 return formatv("{0} \"{1}\"", Label, Name).str();
66 assert(MaxLen >= RequiredExtraChars);
67 std::string TN = truncateStringBack(Name, MaxLen - RequiredExtraChars);
68 return formatv("{0} \"{1}\"", Label, TN).str();
71 std::string llvm::pdb::typesetItemList(ArrayRef<std::string> Opts,
72 uint32_t IndentLevel, uint32_t GroupSize,
75 while (!Opts.empty()) {
76 ArrayRef<std::string> ThisGroup;
77 ThisGroup = Opts.take_front(GroupSize);
78 Opts = Opts.drop_front(ThisGroup.size());
79 Result += join(ThisGroup, Sep);
83 Result += formatv("{0}", fmt_repeat(' ', IndentLevel));
89 std::string llvm::pdb::typesetStringList(uint32_t IndentLevel,
90 ArrayRef<StringRef> Strings) {
91 std::string Result = "[";
92 for (const auto &S : Strings) {
93 Result += formatv("\n{0}{1}", fmt_repeat(' ', IndentLevel), S);
99 std::string llvm::pdb::formatSegmentOffset(uint16_t Segment, uint32_t Offset) {
100 return formatv("{0:4}:{1:4}", Segment, Offset);