2005-10-19 07:28:43 +00:00
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#!/bin/sh
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#
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# add_parens_for_own_funcs.sh
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#
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# This script is designed to fix inconsistencies in the use of
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# parentheses after function names in the manual pages.
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# It changes manual pages to add these parentheses.
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# The problem is how to determine what is a "function name".
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# The approach this script takes is the following:
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#
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# For each manual page named in the command line that contains
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# more than one line (i.e., skip man-page link files)
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# Create a set of names taken from the .SH section of the
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# page and from grepping all pages for names that
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# have .so links to this page
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# For each name obtained above
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# If we can find something that looks like a prototype on
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# the page, then
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# Try to substitute instances of that name on the page.
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# (instances are considered to be words formatted
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# using ^.[BI] or \f[BI]...\f[PR] -- this script
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2007-06-09 12:41:40 +00:00
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# ignores unformatted instances of function names.)
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2005-10-19 07:28:43 +00:00
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# fi
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# done
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# done
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#
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# The rationale of the above is that the most likely function names
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# that appear on a page are those that the manual page is describing.
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# It doesn't fix everything, but it catches many instances.
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# The rest will have to be done manually.
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#
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# This script is rather verbose because it provides a computer-assisted
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# solution, rather than one that is fully automated. When running it,
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# pipe the output through
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#
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# ... 2>&1 | less
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#
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# and take a good look at the output. In particular, you can scan
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# the output for *possible* problems by looking for the pattern: /^%%%/
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# The script's output should be enough to help you determine if the
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# problem is real or not.
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#
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# Suggested usage (in this case to fix pages in Section 2):
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#
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# cd man2
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# sh add_parens_for_own_funcs.sh *.2 2>&1 | tee changes.log | less
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#
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# Use the "-n" option for a dry run, in order to see what would be
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# done, without actually doing it.
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#
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# (And, yes, there are many ways that this script could probably be
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# made to work faster...)
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#
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######################################################################
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#
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#
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file_base="tmp.$(basename $0)"
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work_dst_file="$file_base.dst"
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work_src_file="$file_base.src"
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matches_for_all_names="$file_base.all_match"
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matches_for_this_name="$file_base.this_match"
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all_files="$work_dst_file $work_src_file $matches_for_all_names \
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$matches_for_this_name"
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rm -f $all_files
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# Command-line option processing
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really_do_it=1
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while getopts "n" optname; do
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case "$optname" in
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n) really_do_it=0;
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;;
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*) echo "Unknown option: $OPTARG"
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exit 1
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;;
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esac
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done
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2007-06-09 12:41:40 +00:00
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shift $(( $OPTIND - 1 ))
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2005-10-19 07:28:43 +00:00
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# Only process files with > 1 line -- single-line files are link files
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2007-06-09 12:41:40 +00:00
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for page in $(wc "$@" 2> /dev/null | awk '$1 > 1 {print $4}'| \
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2005-10-19 07:28:43 +00:00
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grep -v '^total'); do
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echo ">>>>>>>>>>>>>>>>>>>>>>>>>" $page "<<<<<<<<<<<<<<<<<<<<<<<<<"
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echo ">>>>>>>>>>>>>>>>>>>>>>>>>" $page "<<<<<<<<<<<<<<<<<<<<<<<<<" 1>&2
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# Extract names that follow the ".SH NAME" directive -- these will
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# be our guesses about function names to look for
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sh_nlist=$(cat $page | \
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awk 'BEGIN { p = 0 }
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2007-06-09 12:41:40 +00:00
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/^\.SH NAME/ { p = NR }
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/^.SH/ && NR > p { p = 0 } # Stop at the next .SH directive
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p > 0 && NR > p { print $0 } # These are the lines between
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# the two .SH directives
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2005-10-19 07:28:43 +00:00
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')
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sh_nlist=$(echo $sh_nlist | sed -e 's/ *\\-.*//' -e 's/, */ /g')
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echo "### .SH name list:" $sh_nlist
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# Some pages like msgop.2 don't actually list the function names in
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# the .SH section -- but we can try using link pages to give us
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# another guess at the right function names to look for
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so_nlist=$(grep -l "^\\.so.*/$(echo $page| \
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sed -e 's/\.[1-8]$//')\\." $* | \
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sed -e 's/\.[1-8]$//g')
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echo "### .so name list:" $so_nlist
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# Combine the two lists, eliminate duplicates
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nlist=$(echo $sh_nlist $so_nlist | tr ' ' '\012' | sort -u)
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maybechanged=0
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cp $page $work_dst_file
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rm -f $matches_for_all_names; # touch $matches_for_all_names
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for rname in $nlist; do # try each name from out list for this page
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# A very few names in .SH sections contain regexp characters!
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name=$(echo $rname | sed -e 's/\*/\\*/g' -e 's/\./\\./g' \
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-e 's/\[/\\[/g' -e 's/\+/\\+/g')
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echo "########## trying $rname ##########"
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rm -f $matches_for_this_name
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grep "^.BR* $name *$" $page | \
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>> $matches_for_this_name
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grep "^.BR $name [^(\"]$" $page | \
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>> $matches_for_this_name
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grep '\\fB'"$name"'\\f[PR][ .,;:]' $page | \
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>> $matches_for_this_name
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grep '\\fB'"$name"'\\f[PR]$' $page | \
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>> $matches_for_this_name
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cat $matches_for_this_name | sed -e 's/^/### MATCH: /'
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cat $matches_for_this_name >> $matches_for_all_names
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# Only process a page if we can see something that looks
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# like a function prototype for this name in the page
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if grep -q "$name *(" $page || \
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grep -q "$name\\\\f.[\\ ]*(" $page; then
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# '.B name$'
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# '.BR name [^("]*$
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# (The use of [^"] in the above eliminates lines
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# like: .BR func " and " func
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# Those lines better be done manually.)
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cp $work_dst_file $work_src_file
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cat $work_src_file | \
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sed \
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-e "s/^.BR* $name *\$/.BR $name ()/" \
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-e "/^.BR *$name [^(\"]*\$/s/^.BR *$name /.BR $name ()/" \
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> $work_dst_file
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# '\fBname\fP[ .,;:]'
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# '\fBname\fP$'
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cp $work_dst_file $work_src_file
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cat $work_src_file | \
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sed \
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-e 's/\\fB'$name'\\fP /\\fB'$name'\\fP() /g' \
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-e 's/\\fB'$name'\\fP\./\\fB'$name'\\fP()./g' \
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-e 's/\\fB'$name'\\fP,/\\fB'$name'\\fP(),/g' \
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-e 's/\\fB'$name'\\fP;/\\fB'$name'\\fP();/g' \
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-e 's/\\fB'$name'\\fP:/\\fB'$name'\\fP():/g' \
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-e 's/\\fB'$name'\\fP$/\\fB'$name'\\fP()/g' \
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> $work_dst_file
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# '\fBname\fR[ .,;:]'
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# '\fBname\fR$'
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cp $work_dst_file $work_src_file
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cat $work_src_file | \
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sed \
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-e 's/\\fB'$name'\\fR /\\fB'$name'\\fR() /g' \
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-e 's/\\fB'$name'\\fR\./\\fB'$name'\\fR()./g' \
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-e 's/\\fB'$name'\\fR,/\\fB'$name'\\fR(),/g' \
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-e 's/\\fB'$name'\\fR;/\\fB'$name'\\fR();/g' \
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-e 's/\\fB'$name'\\fR:/\\fB'$name'\\fR():/g' \
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-e 's/\\fB'$name'\\fR$/\\fB'$name'\\fR()/g' \
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> $work_dst_file
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maybechanged=1
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else
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echo "%%%%%%%%%% WARNING: NO PROTOTYPE MATCHES FOR: $name"
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fi
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done
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# If the file was changed, then:
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# show "diff -U" output to user;
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# and count number of changed lines and compare it with what
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# we expected, displaying a warning if it wasn't what was expected
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if test $maybechanged -ne 0 && ! cmp -s $page $work_dst_file; then
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diff -u $page $work_dst_file
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made_matches=$(diff -U 0 $page $work_dst_file | grep '^\+[^+]' | \
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wc -l | awk '{print $1}')
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# The following line makes the changes -- comment it out if you
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# just want to do a dry run to see what changes would be made.
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if test $really_do_it -ne 0; then
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cat $work_dst_file > $page
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fi
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else
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echo "### NOTHING CHANGED"
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made_matches=0
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fi
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min_match=$(cat $matches_for_all_names | \
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sort -u | wc -l | awk '{print $1}')
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echo "### Expected matches >= $min_match"
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echo "### Made matches $made_matches"
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if test $made_matches -lt $min_match; then
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echo "%%%%%%%%%% WARNING: NOT ENOUGH MATCHES: " \
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"$made_matches < $min_match"
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fi
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done
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# clean up
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rm -f $all_files
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exit 0
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