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#include "tensorflow/core/framework/op_gen_lib.h"
#include "tensorflow/core/lib/strings/strcat.h"
namespace tensorflow {
string WordWrap(StringPiece prefix, StringPiece str, int width) {
const string indent_next_line = "\n" + Spaces(prefix.size());
width -= prefix.size();
string result;
strings::StrAppend(&result, prefix);
while (!str.empty()) {
if (static_cast<int>(str.size()) <= width) {
// Remaining text fits on one line.
strings::StrAppend(&result, str);
break;
}
auto space = str.rfind(' ', width);
if (space == StringPiece::npos) {
// Rather make a too-long line and break at a space.
space = str.find(' ');
if (space == StringPiece::npos) {
strings::StrAppend(&result, str);
break;
}
}
// Breaking at character at position <space>.
StringPiece to_append = str.substr(0, space);
str.remove_prefix(space + 1);
// Remove spaces at break.
while (to_append.ends_with(" ")) {
to_append.remove_suffix(1);
}
while (str.Consume(" ")) {
}
// Go on to the next line.
strings::StrAppend(&result, to_append);
if (!str.empty()) strings::StrAppend(&result, indent_next_line);
}
return result;
}
bool ConsumeEquals(StringPiece* description) {
if (description->Consume("=")) {
while (description->Consume(" ")) { // Also remove spaces after "=".
}
return true;
}
return false;
}
} // namespace tensorflow
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