libcm/doc/gen_doc.sh

# switches: -E : Stop after preprocess
#           -C : Do not strip comments.
#           -P : Do not generate line markers
#           -traditional-cpp : preserve white space

# run the pre-processor to generate the vector ops documentation
gcc -E -C -P -traditional-cpp -o temp.h ../src/vop/cmVectOpsDoc.h

# The --traditional-cpp switch prevents the 'stringizing' 
# C pre-proc direcive from working this leaves '##_' tokens
# which need to be replaced by '_'
# replace '_##` with '_'
sed 's/\(_##\)/_/g' temp.h > temp1.h

# Remove header text generated by gcc.
# sed '/\/\*/,/\/\/end_cut/{#!d}' temp.h
sed '/\/\*/,/\/\/end_cut/{//!d;};' temp1.h > temp2.h

# Remove the first two lines.
tail -n +3 temp2.h > ../src/cmVectOpsDocOut.h

rm -f temp.h
rm -f temp1.h
rm -f temp2.h

# Run the doc generator
#cdg -c cdg_cfg.json -o ~/temp/doc_libcm