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[Bash-autocompletion] Show HelpText with possible flags

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Summary:
`clang --autocomplete=-std` will show
```
-std:   Language standard to compile for
-std=   Language standard to compile for
-stdlib=        C++ standard library to use
```
after this change.

However, showing HelpText with completion in bash seems super tricky, so
this feature will be used in other shells (fish, zsh...).

Reviewers: v.g.vassilev, teemperor, ruiu

Subscribers: cfe-commits, hiraditya

Differential Revision: https://reviews.llvm.org/D35759

llvm-svn: 309113
This commit is contained in:
Yuka Takahashi 2017-07-26 13:36:58 +00:00
parent ae92df8259
commit a002b96ed1
1 changed files with 3 additions and 1 deletions
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4
lib/Option/OptTable.cpp
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@ -235,7 +235,9 @@ OptTable::findByPrefix(StringRef Cur, unsigned short DisableFlags) const {
continue;
for (int I = 0; In.Prefixes[I]; I++) {
std::string S = std::string(In.Prefixes[I]) + std::string(In.Name);
std::string S = std::string(In.Prefixes[I]) + std::string(In.Name) + "\t";
if (In.HelpText)
S += In.HelpText;
if (StringRef(S).startswith(Cur))
Ret.push_back(S);
}