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A script for detecting in-your-face plagiarism in C source files
#!/bin/bash
FILES=($*)
NUM_FILES=${#FILES[@]}
function num_diffs() {
i=1
for f in $*; do
cat $f | uncrustify -q -c uncrustify.conf | grep -v "#" > tmp.c
cpp tmp.c > F$i.c
i=$((i+1))
done
diff -d -c1 -wiB F1.c F2.c | grep -- "^---" | wc -l
}
echo -n " ID, NAME"
for ((i=0; i < NUM_FILES; i++)); do
printf ",%4d" $i
done
echo ""
for ((i=0; i < NUM_FILES; i++)); do
printf "%4d," $i
echo -n ${FILES[i]} | head -c 6
for ((j=0; j < i + 1; j++)); do
echo -n ", NA"
done
for ((j=i+1; j < NUM_FILES; j++)); do
OUT=`num_diffs ${FILES[$i]} ${FILES[$j]}`
printf ",%4d" $OUT
done
echo ""
done
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