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reject attempts to use ()'s in patterns, these are reserved for filecheck.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82780 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-09-25 17:29:36 +00:00
parent 5d6a05f4d4
commit 94638f0081
1 changed files with 15 additions and 3 deletions
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18
utils/FileCheck/FileCheck.cpp
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@ -45,6 +45,9 @@ NoCanonicalizeWhiteSpace("strict-whitespace",
//===----------------------------------------------------------------------===//
class Pattern {
SourceMgr *SM;
SMLoc PatternLoc;
/// FixedStr - If non-empty, this pattern is a fixed string match with the
/// specified fixed string.
StringRef FixedStr;
@ -67,6 +70,9 @@ private:
};
bool Pattern::ParsePattern(StringRef PatternStr, SourceMgr &SM) {
this->SM = &SM;
PatternLoc = SMLoc::getFromPointer(PatternStr.data());
// Ignore trailing whitespace.
while (!PatternStr.empty() &&
(PatternStr.back() == ' ' || PatternStr.back() == '\t'))
@ -74,9 +80,8 @@ bool Pattern::ParsePattern(StringRef PatternStr, SourceMgr &SM) {
// Check that there is something on the line.
if (PatternStr.empty()) {
SM.PrintMessage(SMLoc::getFromPointer(PatternStr.data()),
"found empty check string with prefix '"+CheckPrefix+":'",
"error");
SM.PrintMessage(PatternLoc, "found empty check string with prefix '" +
CheckPrefix+":'", "error");
return true;
}
@ -170,6 +175,13 @@ size_t Pattern::Match(StringRef Buffer, size_t &MatchLen) const {
assert(!MatchInfo.empty() && "Didn't get any match");
StringRef FullMatch = MatchInfo[0];
if (MatchInfo.size() != 1) {
SM->PrintMessage(PatternLoc, "regex cannot use grouping parens", "error");
exit(1);
}
MatchLen = FullMatch.size();
return FullMatch.data()-Buffer.data();
}