ccfilter reads 'stdin' and outputs to 'stdout' \.
The need for ccfilter is clear, as some compilers have irregular and/or multiple line error messages (with the relevant information on line 2), which makes it impossible for the errorformat to correctly display them ! When working on different platforms, and with different compilers, ccfilter eases the utilization of quickfix, due to its standardized output, allowing to have in .vimrc a plain
:set errorformat=%f:%l:%c:%t:%m
:set shellpipe=\\\\|&ccfilter\\\\>
:set errorformat=%f:%l:%c:%t:%m
16 -c Decrement column by one. This may be needed, depending on the compiler being used.
-r Decrement row by one. This may be needed, depending on the compiler being used.
-v Verbose (Outputs also invalid lines). This option makes ccfilter output also the lines that couldn't be correctly parsed. This is used mostly for ccfilter debugging.
-o <COMPILER> Treat input as <COMPILER>'s output. Even when configuring ccfilter to assume a default COMPILER, sometimes it's helpful to be able to specify the COMPILER used to generate ccfilter's input. For example, when cross-compiling on a network from a single machine.
-h Shows a brief help, describing the configured default COMPILER and the valid parameters for COMPILER.
10 GCC GCC compiler
AIX AIX's C compiler
ATT AT&T/NCR's High Performance C Compiler
IRIX IRIX's MIPS/MIPSpro C compiler
SOLARIS SOLARIS's SparcWorks C compiler
HPUX HPUX's C compiler