[cfe-dev] prevent clang-format from breaking string literals

[Neumann, Adrian]

Hi,

I would like to configure clang-format (version 3.6.0) not to break long
string literals despite the ColumnLimit. I tried setting PenaltyBreakString
to a large value and PenaltyExcessCharacter to a small value. This doesn't
seem to have any effect. 

This is an example program:

#include <string>

int main() {
	std::string s = "this is a really long string that"
		"i really would like to have formatted differently, in
particular I want this line to stay like this";
}

clang-format --dump-config reports 

ColumnLimit:     80
PenaltyBreakBeforeFirstCallParameter: 19
PenaltyBreakComment: 300
PenaltyBreakString: 2000000
PenaltyBreakFirstLessLess: 120
PenaltyExcessCharacter: 1
PenaltyReturnTypeOnItsOwnLine: 60

yet the program is formatted as such:

#include <string>

int main() {
  std::string s = "this is a really long string that"
                  "i really would like to have formatted differently, in "
                  "particular I want this line to stay like this";
}

I there a way to solve this problem, or is this something clang can't do?

Greets,

Adrian

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