cpplint cleaner

.gitattributes

*.cpp filter=cpplint_cleaner
*.h filter=cpplint_cleaner

after.cpp

if (true) {
}
if (true) {

a, b
a, b
for (;;) {
}
for (;;) {
}
} else {
} else {
std::vector<std::function<std::pair<int, double>(char)>>
a + b
a + b
a + b
a + b
a - b
a - b
a - b
a - b
a / b
a / b
a / b
a / b
a = b
a = b
a = b
a = b

before.cpp

if(true){
}
if (true) {
    
a,b
a, b
for(;;){
}
for (;;) {
}
}else{
} else {
std::vector<std::function<std::pair<int,double>(char)>>  
a+b
a +b
a+ b
a + b
a-b
a -b
a- b
a - b
a/b
a /b
a/ b
a / b
a=b
a =b
a= b
a = b

cleaner.sh

#!/bin/bash

sed \
  -e "s/){/) {/g" \
  -e "s/if(/if (/g" \
  -e "s/for(/for (/g" \
  -e "s/ \{1,\}$//" \
  -e "s/else{/else {/" \
  -e "s/}else/} else/" \
  -e "s/,\([^ ]\)/, \1/g" \
  -e "s/\([+=/-]\)\([^ ]\)/\1 \2/g" \
  -e "s/\([^ ]\)\([+=/-]\)/\1 \2/g" \

cleaner_spec.sh

bash cleaner.sh spec/before.cpp > out.txt
diff out.txt spec/after.cpp
if [ $? == 0 ]; then
  echo "test succeeded"
else
  echo "test failed"
fi
rm out.txt

setup.sh

echo "[filter \"cpplint_cleaner\"]" >> .git/config
echo "  clean = bash scripts/cleaner/cleaner.sh" >> .git/config