2020-04-02 23:10:02 +00:00
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#!/usr/bin/env bash
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2019-07-16 06:49:27 +00:00
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# This script finds and fixes up empty prototypes, to satisfy `-Wstrict-prototypes` and to сomply the C Standard
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set -o errexit
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set -o pipefail
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set -o nounset
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ctags -R -f - --c-kinds=pf --languages="c" --langmap=c:.c.h | grep "([[:space:]]*)" > tmp_ctags.txt || :
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ctags -R -f - --c-kinds=pf --languages="c++" --langmap=c++:.cpp | grep "([[:space:]]*)" | grep -F 'extern "C"' >> tmp_ctags.txt || :
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while read TAGLINE; do
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# a format of ctags:
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# https://en.wikipedia.org/wiki/Ctags
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# a 2nd column,
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FILENAME=$(printf "$TAGLINE" | sed -E "s/([^[:space:]]+)[[:space:]]([^[:space:]]+)[[:space:]](.+)\;\".*/\2/g")
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# a 3rd column
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# a pattern
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# /^ void sdmmc_host_dma_stop ( );$/
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OLDLINE=$(printf "$TAGLINE" | sed -E "s/([^[:space:]]+)[[:space:]]([^[:space:]]+)[[:space:]](.+)\;\".*/\3/g")
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# remove leading and trailng '/'-s
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OLDLINE="${OLDLINE#/}"
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OLDLINE="${OLDLINE%/}"
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# remove leading '^' and trailing '$'
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OLDLINE="${OLDLINE#^}"
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OLDLINE="${OLDLINE%$}"
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OLDBRACERS=$(printf "$OLDLINE" | sed "s/.*\(([[:space:]]*)\).*/\1/")
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NEWBRACERS="(void)"
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NEWLINE=${OLDLINE/$OLDBRACERS/$NEWBRACERS}
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# escaping
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OLDLINE=$(printf "%q" "$OLDLINE")
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NEWLINE=$(printf "%q" "$NEWLINE")
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sed -i -E 's,'"^$OLDLINE\$"','"$NEWLINE"',' $FILENAME
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done < tmp_ctags.txt
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echo "+++"
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echo "Also 'git grep -E \"^.*\([^\)]+\) *\(\).*$\"' will help to find some callback declarations"
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echo "+++"
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