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Canonicalize line endings to Linux style also when the --strict-whitespace flag is in use. This flag is supposed to affect horizontal whitespaces only.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174541 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Guy Benyei 2013-02-06 20:40:38 +00:00
parent c3662eeaa4
commit 4cc74fcba0
3 changed files with 27 additions and 11 deletions
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3
docs/CommandGuide/FileCheck.rst
View File

@ -43,7 +43,8 @@ OPTIONS
By default, FileCheck canonicalizes input horizontal whitespace (spaces and
tabs) which causes it to ignore these differences (a space will match a tab).
The :option:`--strict-whitespace` argument disables this behavior.
The :option:`--strict-whitespace` argument disables this behavior. End-of-line
sequences are canonicalized to UNIX-style '\n' in all modes.
.. option:: -version

11
test/FileCheck/dos-style-eol.txt Normal file
View File

@ -0,0 +1,11 @@
// Test for using FileCheck on DOS style end-of-line
// This test was deliberately committed with DOS style end of line.
// Don't change line endings!
// RUN: FileCheck -input-file %s %s
// RUN: FileCheck --strict-whitespace -input-file %s %s
LINE 1
; CHECK: {{^}}LINE 1{{$}}
LINE 2
; CHECK: {{^}}LINE 2{{$}}

24
utils/FileCheck/FileCheck.cpp
View File

@ -587,9 +587,13 @@ struct CheckString {
: Pat(P), Loc(L), IsCheckNext(isCheckNext) {}
};
/// CanonicalizeInputFile - Remove duplicate horizontal space from the specified
/// memory buffer, free it, and return a new one.
static MemoryBuffer *CanonicalizeInputFile(MemoryBuffer *MB) {
/// Canonicalize whitespaces in the input file. Line endings are replaced
/// with UNIX-style '\n'.
///
/// \param PreserveHorizontal Don't squash consecutive horizontal whitespace
/// characters to a single space.
static MemoryBuffer *CanonicalizeInputFile(MemoryBuffer *MB,
bool PreserveHorizontal) {
SmallString<128> NewFile;
NewFile.reserve(MB->getBufferSize());
@ -600,8 +604,9 @@ static MemoryBuffer *CanonicalizeInputFile(MemoryBuffer *MB) {
continue;
}
// If current char is not a horizontal whitespace, dump it to output as is.
if (*Ptr != ' ' && *Ptr != '\t') {
// If current char is not a horizontal whitespace or if horizontal
// whitespace canonicalization is disabled, dump it to output as is.
if (PreserveHorizontal || (*Ptr != ' ' && *Ptr != '\t')) {
NewFile.push_back(*Ptr);
continue;
}
@ -637,9 +642,8 @@ static bool ReadCheckFile(SourceMgr &SM,
MemoryBuffer *F = File.take();
// If we want to canonicalize whitespace, strip excess whitespace from the
// buffer containing the CHECK lines.
if (!NoCanonicalizeWhiteSpace)
F = CanonicalizeInputFile(F);
// buffer containing the CHECK lines. Remove DOS style line endings.
F = CanonicalizeInputFile(F, NoCanonicalizeWhiteSpace);
SM.AddNewSourceBuffer(F, SMLoc());
@ -807,8 +811,8 @@ int main(int argc, char **argv) {
}
// Remove duplicate spaces in the input file if requested.
if (!NoCanonicalizeWhiteSpace)
F = CanonicalizeInputFile(F);
// Remove DOS style line endings.
F = CanonicalizeInputFile(F, NoCanonicalizeWhiteSpace);
SM.AddNewSourceBuffer(F, SMLoc());