mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-23 17:29:19 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76069 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
//===-- llvm/Support/FormattedStream.cpp - Formatted streams ----*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains the implementation of formatted_raw_ostream.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/FormattedStream.h"
|
|
using namespace llvm;
|
|
|
|
/// ComputeColumn - Examine the current output and figure out which
|
|
/// column we end up in after output.
|
|
///
|
|
void formatted_raw_ostream::ComputeColumn(const char *Ptr, size_t Size) {
|
|
// Keep track of the current column by scanning the string for
|
|
// special characters
|
|
|
|
for (const char *epos = Ptr + Size; Ptr != epos; ++Ptr) {
|
|
++Column;
|
|
if (*Ptr == '\n' || *Ptr == '\r')
|
|
Column = 0;
|
|
else if (*Ptr == '\t')
|
|
Column += (8 - (Column & 0x7)) & 0x7;
|
|
}
|
|
}
|
|
|
|
/// PadToColumn - Align the output to some column number.
|
|
///
|
|
/// \param NewCol - The column to move to.
|
|
/// \param MinPad - The minimum space to give after the most recent
|
|
/// I/O, even if the current column + minpad > newcol.
|
|
///
|
|
void formatted_raw_ostream::PadToColumn(unsigned NewCol, unsigned MinPad) {
|
|
flush();
|
|
|
|
// Output spaces until we reach the desired column.
|
|
unsigned num = NewCol - Column;
|
|
if (NewCol < Column || num < MinPad)
|
|
num = MinPad;
|
|
|
|
// TODO: Write a whole string at a time.
|
|
while (num-- > 0)
|
|
write(' ');
|
|
}
|
|
|
|
/// fouts() - This returns a reference to a formatted_raw_ostream for
|
|
/// standard output. Use it like: fouts() << "foo" << "bar";
|
|
formatted_raw_ostream &llvm::fouts() {
|
|
static formatted_raw_ostream S(outs());
|
|
return S;
|
|
}
|
|
|
|
/// ferrs() - This returns a reference to a formatted_raw_ostream for
|
|
/// standard error. Use it like: ferrs() << "foo" << "bar";
|
|
formatted_raw_ostream &llvm::ferrs() {
|
|
static formatted_raw_ostream S(errs());
|
|
return S;
|
|
}
|