105 lines
3.9 KiB
Bash
Executable File
105 lines
3.9 KiB
Bash
Executable File
#!/bin/sh
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#
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# Convert the output of an mlpack executable into a man page. This assumes that
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# the IO subsystem is used to output help, that the executable is properly
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# documented, and that the program is run in the directory that the executable
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# is in. Usually, this is used by CMake on Linux/UNIX systems to generate the
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# man pages.
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#
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# Usage:
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# exec2man.sh executable_name output_file_name
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#
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# No warranties...
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#
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# @author Ryan Curtin
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set -e
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if [ $# != 2 ]; then
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echo "Generates man page from the help text of an mlpack utility program."
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echo "Usage: $0 mlpack_executable generated-man-page.1"
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exit 1
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fi
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exec="$1"
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name="$(basename "$exec")"
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output="$2"
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if [ "$name" = "$exec" ]; then
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# if no directory prefix with explict ./ to avoid path search
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exec="./$exec"
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fi
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if [ ! -x "$exec" ]; then
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echo "error: cannot find executable file $exec"
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exit 1
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fi
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# Get the version.
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version=$("$exec" --version | sed 's/^.* \([^ ]*\)\.$/\1/')
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# Generate the synopsis.
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# First, required options.
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reqoptions="$("$exec" --help | \
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awk '/Required input options:/,/Optional input options:/' | \
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grep '^ --' | \
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sed 's/^ --/--/' | \
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sed 's/^--[A-Za-z0-9_-]* (\(-[A-Za-z0-9]\))/\1/' | \
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sed 's/\(^-[A-Za-z0-9]\) [^\[].*/\1/' | \
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sed 's/\(^-[A-Za-z0-9] \[[A-Za-z0-9]*\]\) .*/\1/' | \
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sed 's/\(^--[A-Za-z0-9_-]*\) [^[].*/\1/' | \
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sed 's/\(^--[A-Za-z0-9_-]* \[[A-Za-z0-9]*\]\) [^[].*/\1/' | \
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tr '\n' ' ' | \
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sed 's/\[//g' | \
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sed 's/\]//g')"
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# Then, regular options.
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options="$("$exec" -h | \
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awk '/Optional input options:/,/For further information,/' | \
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grep '^ --' | \
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sed 's/^ --/--/' | \
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grep -v -- '--help' | \
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grep -v -- '--info' | \
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grep -v -- '--verbose' | \
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sed 's/^--[A-Za-z0-9_-]* (\(-[A-Za-z0-9]\))/\1/' | \
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sed 's/\(^-[A-Za-z0-9]\) [^\[].*/\1/' | \
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sed 's/\(^-[A-Za-z0-9] \[[A-Za-z0-9]*\]\) .*/\1/' | \
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sed 's/\(^--[A-Za-z0-9_-]*\) [^[].*/\1/' | \
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sed 's/\(^--[A-Za-z0-9_-]* \[[A-Za-z0-9]*\]\) [^[].*/\1/' | \
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tr '\n' ' ' | \
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sed 's/\[//g' | \
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sed 's/\]//g' | \
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sed 's/\(-[A-Za-z0-9]\)\( [^a-z]\)/\[\1\]\2/g' | \
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sed 's/\(--[A-Za-z0-9_-]*\)\( [^a-z]\)/\[\1\]\2/g' | \
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sed 's/\(-[A-Za-z0-9] [a-z]*\) /\[\1\] /g' | \
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sed 's/\(--[A-Za-z0-9_-]* [a-z]*\) /\[\1\] /g')"
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synopsis="$name $reqoptions $options [-h -v]";
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# Preview the whole thing first.
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#"$exec" -h | \
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# awk -v syn="$synopsis" \
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# '{ if (NR == 1) print "NAME\n '$name' - "tolower($0)"\nSYNOPSIS\n "syn" \nDESCRIPTION\n" ; else print } ' | \
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# sed '/^[^ ]/ y/qwertyuiopasdfghjklzxcvbnm:/QWERTYUIOPASDFGHJKLZXCVBNM /' | \
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# txt2man -T -P mlpack -t $name -d 1
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# Now do it.
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# The awk script is a little ugly, but it is meant to format parameters
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# correctly so that the entire description of the parameter is on one line (this
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# helps avoid 'man' warnings).
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# The sed line at the end removes accidental macros from the output, replacing
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# single-quotes at the beginning of a line with the troff escape code \(aq.
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"$exec" -h | \
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sed 's/^For further information/Additional Information\n\n For further information/' | \
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sed 's/^consult the documentation/ consult the documentation/' | \
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sed 's/^distribution of mlpack./ distribution of mlpack./' | \
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awk -v syn="$synopsis" \
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'{ if (NR == 1) print "NAME\n '"$name"' - "tolower($0)"\nSYNOPSIS\n "syn" \nDESCRIPTION\n" ; else print } ' | \
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sed '/^[^ ]/ y/qwertyuiopasdfghjklzxcvbnm:/QWERTYUIOPASDFGHJKLZXCVBNM /' | \
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sed 's/ / /g' | \
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awk '/NAME/,/.*OPTIONS/ { if (!/.*OPTIONS/) { print; } } /ADDITIONAL INFORMATION/,0 { print; } /.*OPTIONS/,/ADDITIONAL INFORMATION/ { if (!/REQUIRED INPUT OPTIONS/ && !/OPTIONAL INPUT OPTIONS/ && !/OPTIONAL OUTPUT OPTIONS/ && !/ADDITIONAL INFORMATION/) { if (/ --/) { printf "\n" } sub(/^[ ]*/, ""); sub(/ [ ]*/, " "); printf "%s ", $0; } else { if (!/ADDITIONAL INFORMATION/) { print "\n"$0; } } }' | \
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sed 's/ ADDITIONAL INFORMATION/\n\nADDITIONAL INFORMATION/' | \
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txt2man -t "$name" -s 1 -r "mlpack-$version" -v "User Commands" | \
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sed "s/^'/\\\\(aq/" > "$output"
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