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srctoman revision 1.1.1.3
      1 #!/bin/sh
      2 
      3 # srctoman - extract manual page from source file comment
      4 
      5 # @(#) srctoman.sh 1.2 11/4/89 15:56:22
      6 
      7 LANG=
      8 
      9 # process arguments
     10 
     11 while :
     12 do
     13     case $1 in
     14  [0-9]) SECT=$1;;
     15      -) LANG=$1; B='[#:]';;
     16   -awk) LANG=$1; B='#';;
     17     -c) LANG=$1; B='\/\*';;
     18     -f) LANG=$1; B='[Cc]';;
     19    -mk) LANG=$1; B='#';;
     20  -n|-t) LANG=$1; B='\\"';;
     21     -p) LANG=$1; B='{';;
     22     -r) LANG=$1; B='#';;
     23     -C) LANG=$1; B=$2; shift;;
     24     -*) ERROR="unknown option: $1"; break;;
     25     "") ERROR="missing file argument"; break;;
     26      *) break;;
     27     esac
     28     shift
     29 done
     30 
     31 # check error status
     32 
     33 case $ERROR in
     34 "") ;;
     35  *) echo "$0: $ERROR" 1>&2
     36     echo "usage: $0 [-|-awk|-c|-f|-mk|-n|-p|-t|-r|-C] [section] file(s)" 1>&2; exit 1;;
     37 esac
     38 
     39 # set up for file suffix processing
     40 
     41 case $LANG in
     42 "") sh='[:#]';	r='#';	rh=$r;	awk='#'; mk='#';
     43     c='\/\*';	h=$c;	y=$c;	l=$c;
     44     f='[Cc]';	fh=$f;	p='{';	ph=$p;
     45     ms='\\"';	nr=$ms;	mn=$ms;	man=$ms;
     46 esac
     47 
     48 # extract comments
     49 
     50 for i in $*
     51 do
     52     case $LANG in
     53     "") eval B\="\$`expr $i : '.*\.\([^.]*\)$'`"
     54 	test "$B" || { echo "$0: unknown suffix: $i; assuming c" 1>&2; B=$c; }
     55     esac
     56     sed '
     57     /^'"$B"'++/,/^'"$B"'--/!d
     58     /^'"$B"'++/d
     59     /^'"$B"'--/d
     60     s/[ 	]*$//
     61     /^'"$B"' \([A-Z]\)/{
     62 	s//\1/
     63 	/^NAME[ 	]*$/{
     64 	    N
     65 	    s/^.*\n'"$B"'[ 	]*//
     66 	    h
     67 	    y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/
     68 	    s/^.*$/.TH & '"$SECT"'\
     69 .ad\
     70 .fi\
     71 .SH NAME/
     72 	    p
     73 	    g
     74 	    s/[ 	][ 	]*[0-9][ 	]*$//
     75 	    a\
     76 \\-
     77 	    p
     78 	    d
     79 	}
     80 	/^SUMMARY/d
     81 	/^DESCRIPTION/s//.SH &\
     82 .ad\
     83 .fi/
     84 	/^BUGS/s//.SH &\
     85 .ad\
     86 .fi/
     87 	/^DIAGNOSTICS/s//.SH &\
     88 .ad\
     89 .fi/
     90 	/^HISTORY/s//.SH &\
     91 .ad\
     92 .fi/
     93 	/^[A-Z][A-Z][A-Z][^a-z]*$/s//.SH "&"\
     94 .na\
     95 .nf/
     96 	p
     97 	d
     98     }
     99     s/^'"$B"' *//
    100     s/^	//
    101     s/^[ 	]*$//
    102     /^\\"/d
    103     /^\./{
    104 	s/\([^ ]\)-/\1\\-/g
    105     }
    106     /^'"'"'/{
    107 	s/^/\\\&/
    108     }
    109     /^[^.]/{
    110 	s/-/\\-/g
    111     }
    112 ' $i
    113 done | expand
    114 
    115 exit
    116 
    117 #++
    118 # NAME
    119 #	srctoman 1
    120 # SUMMARY
    121 #	extract manual page from source file comment
    122 # PACKAGE
    123 #	sdetools
    124 # SYNOPSIS
    125 #	srctoman [-|-awk|-c|-f|-mk|-m|-n|-p|-t|-r|-C] [section] file(s)
    126 # DESCRIPTION
    127 #	\fIsrctoman\fR converts comments in various programming languages to
    128 #	UNIX-style manual pages.
    129 #	The command processes comments in the style of newsrc(1);
    130 #	its standard output is suitable for formatting with nroff(1) or 
    131 #	troff(1) using the "-man" macro package.  
    132 #	Typically, srctoman is invoked from make(1) scripts.
    133 #
    134 #	Source files are processed in the indicated order; if no
    135 #	files are specified the command produces no output.
    136 #
    137 #	The source file language can be specified through a command-line
    138 #	option, or can be implied by the filename suffix.
    139 #	The expected start-of-comment symbol is shown in the last column.
    140 #
    141 # .nf
    142 # .ft C
    143 	option	language	comment
    144 
    145 	-	shell		[:#]
    146 	-awk	awk		#
    147 	-c	c		/*
    148 	-f	fortran		[Cc]
    149 	-mk	make		#
    150 	-n	nroff		\\"
    151 	-p	pascal		{
    152 	-t	troff		\\"
    153 	-r	ratfor		#
    154 	-C	any language	next argument
    155 #
    156 	suffix	language	comment
    157 
    158 	.awk	awk		#
    159 	.c	c		/*
    160 	.f	fortran		[Cc]
    161 	.fh	fortran		[Cc]
    162 	.h	c		/*
    163 	.l	lex		/*
    164 	.man	nroff,troff	\\"
    165 	.mk	make		#
    166 	.me	nroff,troff	\\"
    167 	.ms	nroff,troff	\\"
    168 	.nr	nroff,troff	\\"
    169 	.p	pascal		{
    170 	.ph	pascal		{
    171 	.r	ratfor		#
    172 	.rh	ratfor		#
    173 	.sh	shell		[:#]
    174 	.y	yacc		/*
    175 # .ft
    176 # .PP
    177 # .fi
    178 #
    179 #	The required format of comments is discussed below, where SOC
    180 #	stands for the start-of-comment symbol of the language being used.
    181 # .IP o
    182 #	Start of manual: SOC, followed by `++'.
    183 # .IP o
    184 #	Section heading: SOC, blank, section name in upper case.
    185 # .IP o
    186 #	All other text: SOC and subsequent blanks or tabs are removed.
    187 #	Lines that do not start with SOC are left unchanged (useful for 
    188 #	inclusion of program text).
    189 # .IP o
    190 #	End of manual: SOC, followed by `--'.
    191 #	An end-of-comment may follow if the source file language requires this.
    192 # .PP
    193 #	The following manual sections receive a special treatment:
    194 #	NAME and SUMMARY should appear at the beginning and in
    195 #	this order; DESCRIPTION, DIAGNOSTICS and BUGS will be
    196 #	right-margin adjusted.
    197 #	Other sections may be added freely without confusing srctoman.
    198 # COMMANDS
    199 #	sh(1), sed(1), expand(1)
    200 # SEE ALSO
    201 #	newsrc(1)
    202 # DIAGNOSTICS
    203 #	The program complains if an unknown language is specified
    204 #	of if the language cannot be deduced from the file suffix.
    205 # AUTHOR(S)
    206 #	W.Z. Venema
    207 #	Eindhoven University of Technology
    208 #	Department of Mathematics and Computer Science
    209 #	Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
    210 # CREATION DATE
    211 #	Fri Jan 17 22:59:27 MET 1986
    212 # STATUS
    213 #	srctoman.sh 1.2 11/4/89 15:56:22 (draft)
    214 #--
    215