Usenet 1993 July/InfoMagic USENET CD-ROM July 1993.ISO/sources/unix/volume2/cpg+mdep3

Internet Message Format | 1986-11-30 | 33.6 KB

From: ihnp4!amdcad!idi!bene!luke!steven
Subject: cpg revisited
Reply-To: [e-mail] (Steven List)
Newsgroups: mod.sources
Approved: [e-mail]

Mod.sources:  Volume 2, Issue 1
Submitted by: [e-mail] (Steven List)


This is a reposting of my C source listing formatter, `cpg'.  The main
reason for the reposting is that someone actually asked for another
command line option.  The addition is a `-b' option, which causes the
use of only the basename portion of the file name in page headers.

I also included a little conditional preprocessor stuff for those pieces
that I know (believe) are version dependent.  So, if you -DBSD, strchr
and strrchr become index and rindex.  If anybody finds anything else
that is version dependent (and if they have the fix), please send it to
me.

I found that the changes involved enough of the source file that posting
a patch would have been almost as large as reposting.  So here are the
manual page and source updated.

Thanks to Bill Turner (hpdsd!hppsd2!bill) for the suggestion (he got an
early copy of this article for his efforts).

***
*  Steven List @ Benetics Corporation, Mt. View, CA
*  {cdp,greipa,idi,oliveb,sun,tolerant}!bene!luke!steven
***
--------------------------- Cut Here -----------------------------------
#! /bin/sh
# This is a shell archive, meaning:
# 1. Remove everything above the #! /bin/sh line.
# 2. Save the resulting text in a file.
# 3. Execute the file with /bin/sh (not csh) to create the files:
#    cpg.1
#    cpg.c
# This archive created: Mon Jun 24 20:19:05 1985
export PATH; PATH=/bin:$PATH
echo shar: extracting "'cpg.1'" '(5283 characters)'
if test -f 'cpg.1'
then
    echo shar: will not over-write existing file "'cpg.1'"
else
sed 's/^    X//' << \SHAR_EOF > 'cpg.1'
    X.so /b/doc/nroffmacros/manmac
    X.TH "cpg" "1" "Benetics Local"
    X.ds C \fIcpg\fR
    X.tr ~
    X.fi
    X.ad b
    X.SH NAME
    Xcpg - C source listing formatter
    X.SH SYNOPSIS
    Xcpg [ -b<asename> ] [ -t tabstop ] [ file... ]
    X.SH DESCRIPTION
    X\*C is a C language source listing formatter.  It employs certain
    Xtriggers to perform its formatting.  Those same triggers may be used to
    Xextract in-line documentation to create documentation.  At the end of
    Xthe listing produced by \*C is a table of contents of all files and
    Xfunctions contained in the current listing.  The table of contents is
    Xsorted alphabetically by function and file.
    X.P
    XThe listing produced by \*C includes on each line a line number.  On each
    Xline containing any braces ({}), there will also be a
    Xnesting level indicator.  The nesting level indicator includes a number
    X(the current nesting level) and a directional character.  The
    Xdirectional characters are:
    X.IP > 6
    XThe nesting level increased on this line
    X.IP < 6
    XThe nesting level decreased on this line
    X.IP * 6
    XThe nesting level changed both ways, with a net change of zero
    X.P
    XThe triggers that \*C recognizes are itemized below.  Each must appear
    Xin column 1.
    X.TP
    X<formfeed>
    XA formfeed will cause a new page to be started with a full header.
    X.TP
    X/*F filename *<anything>
    XThe file name may be specified in a comment preceding a descriptive
    Xheader block.  The filename argument must be delimited by asterisks in
    Xthe trigger.  The filename will appear in all page headings up to the
    Xnext filename trigger or the next file.  A filename comment block
    X\fBmust\fR be terminated by the endofblock trigger (see below).
    XThis trigger will print as a line in the listing.  This trigger causes
    Xthe start of a new page (form feed) in the listing, with printing of the
    Xpage header including the current file name.
    X.TP
    X/*H funcname *<anything>
    XThe function name may be specified in a comment preceding a descriptive
    Xheader block.  The funcname argument must be delimited by asterisks in
    Xthe trigger.  The funcname will appear in all page headings up to the
    Xnext funcname trigger or the next file.  A funcname comment block
    X\fBmust\fR be terminated by the endofblock trigger (see below).
    XThis trigger will print as a line in the listing.  This trigger causes
    Xthe start of a new page (form feed) in the listing, with printing of the
    Xpage header including the current function name.
    X.TP
    X/*E*/
    XThis is the endofblock trigger.  Everything between the last filename or
    Xfuncname trigger and the endofblock trigger will be passed straight
    Xthrough by \*C without evaluation of nesting levels, comments, or quoted
    Xstrings.  Thus, a header block is treated as one long comment by \*C.
    XThis trigger will print as a line in the listing.
    X.TP
    X/*P*/
    XThis is a page eject trigger.  It will not print in the listing, but
    Xwill be counted for line numbering purposes.  This trigger causes the
    Xpage heading, title, and subtitle to be reprinted based on their current
    Xvalues (see title and subtitle below).
    X.TP
    X/*S <text> */
    XThis is the subtitle trigger.  It determines the contents of the second
    Xtitle line on the page header.  All characters after the initial space
    Xand up to but not including the following asterisk (required) are
    Xincluded as part of the subtitle.  This trigger will not print in the
    Xlisting but will be counted for line numbering purposes.
    X.TP
    X/*T <text> */
    XThis is the title trigger.  It determines the contents of the first
    Xtitle line on the page header.  All characters after the initial space
    Xand up to but not including the following asterisk (required) are
    Xincluded as part of the title.  This trigger will not print in the
    Xlisting but will be counted for line numbering purposes.
    X.SS Options
    X.IP "-b" 16
    XThe basename option causes \fIcpg\fR to use only the basename portion of
    Xthe filename (whether obtained from the fileheader trigger or the
    Xcurrent filename) in page headers as well as the table of contents.
    XThus, if a file is printed using "cpg -bt4 `pwd`/xyz.c", only "xyz.c"
    Xwill show up in the page header.
    X.IP "-t tabstop" 16
    XThe tabstop argument to the -t option specifies how to expand tabs.  The
    Xexpansion is performed automatically with a tabstop of 8 if none is
    Xspecified.
    X.SS Arguments
    X.IP file 16
    XAny number of file names may be specified on the command line (within
    Xlimits set by whichever shell is used).  Each file will be formatted and
    Xits name added to the table of contents.  If no file names are
    Xspecified, \*C will read the standard input.
    X.SH FILES
    X.IP "/tmp/toc_XXXXXX" 20
    Xtemporary file for building the table of contents.
    X.SH "SEE ALSO"
    Xdtab(1), nl(1), pr(1), sort(1)
    X.SH NOTES
    XThis tool was developed at Benetics Corporation.
    X.P
    XA side note: \*C also properly processes comments in shell scripts and
    Xmakefiles.  These comments are correctly handled when the comment
    Xcharacter (# or :) is the first nonblank character on a line.  In order
    Xto facilitate documentation of shell scripts, \*C recognizes the
    Xsequences #{ and #} as the beginning and ending of nesting, and treats
    Xthem as it does in C program sources.  Thus lengthy for, if, while, and
    Xcase statements may be more clearly documented as to nesting levels,
    Xparticulary in shell scripts.
    X.SH AUTHOR
    X.na
    X.nf
    XSteven M. List
    XBenetics Corporation
    XMountain View, CA.
    X{cdp,idi,greipa,oliveb,sun,tolerant}!bene!luke!steven
SHAR_EOF
if test 5283 -ne "`wc -c < 'cpg.1'`"
then
    echo shar: error transmitting "'cpg.1'" '(should have been 5283 characters)'
fi
fi # end of overwriting check
echo shar: extracting "'cpg.c'" '(24738 characters)'
if test -f 'cpg.c'
then
    echo shar: will not over-write existing file "'cpg.c'"
else
sed 's/^    X//' << \SHAR_EOF > 'cpg.c'
    X/*Tcpg - c program source listing formatter */
    X/*F cpg.c **********************************************************
    X *
    X *                           cpg.c
    X *
    X *    DESCRIPTION OF FILE CONTENTS:
    X *      C source program listing formatter source.
    X *
    X *  Cpg provides the facility to print out a C language source file
    X *  with headers, nesting level indicators, and table of contents.
    X *  It makes use of "triggers" for page headings, titles and
    X *  subtitles, and pagination.  It also recognizes function
    X *  declarations and form feeds and treats them appropriately.
    X *
    X *******************************************************************/
    X/*E*/
    X/*S includes, defines, and globals */
    X/*P*/
    X#include <stdio.h>
    X#include    <ctype.h>
    X#include    <time.h>
    X
    X#define EQ ==
    X#define NE !=
    X#define GT >
    X#define GE >=
    X#define LT <
    X#define LE <=
    X#define OR ||
    X#define AND &&
    X
    X#define TRUE 1
    X#define FALSE 0
    X#define YES 1
    X#define NO 0
    X
    X#define SPACE ' '
    X#define NUL '\0'
    X
    Xtypedef short   BOOL;
    X
    X#define INULL -32768
    X#define LNULL -2147483648
    X
    X#define MAX(a,b) ((a) > (b) ? (a) : (b))
    X#define MIN(a,b) ((a) < (b) ? (a) : (b))
    X#define ABS(a) ((a) >= 0 ? (a) : -(a))
    X
    X#define LINESINHEAD 6
    X#define LPP 60
    X#define MAXWIDTH    130
    X
    X#define notend(ll) ((ll[0] EQ SLASH AND ll[1] EQ STAR AND ll[2] EQ 'E') ? FALSE : TRUE)
    X#define SLASH   '/'
    X#define STAR    '*'
    X#define DQUOTE '"'
    X#define SQUOTE '\''
    X#define BSLASH '\\'
    X
    X#ifdef BSD
    X#define strrchr rindex
    X#define strchr index
    X#endif BSD
    X
    Xextern char *strrchr ();
    Xextern char *strchr ();
    X
    Xchar    *basename ();
    X
    Xchar    tim_lin[40];
    Xchar    *file_name;
    Xchar    fh_name[50] = "";
    Xchar    fnc_name[40] = "";
    Xchar    subttl[70] = "";
    Xchar    title[70] = "";
    Xchar    tocname[] = "/tmp/toc_XXXXXX";
    X
    Xint     nlvl = 0;
    X
    Xint     page_line = LPP+1;
    Xint     pageno = 1;
    X
    Xint     tabstop = 8;
    X
    Xint     infunc = FALSE;
    Xint     logging = 0;
    Xint     BASENAME = FALSE;
    X
    Xint     incomment = FALSE;
    Xint     insquote = FALSE;
    Xint     indquote = FALSE;
    X
    Xchar    specline = FALSE;
    X
    XFILE    *tocfile;
    XFILE    *fd;
    X
    Xchar    *pgm;
    X
    Xchar    *ReservedWord[]  = {
    X     "auto", "bool", "break", "case", "char", "continue",
    X     "default", "do", "double", "else", "entry", "enum",
    X     "extern", "float", "for", "goto", "if",
    X     "int", "long", "register", "return", "short",
    X     "sizeof", "static", "struct", "switch",
    X     "typedef", "union", "unsigned", "void", "while",
    X     NULL };
    X
    X/*S main function */
    X/*Hmain */
    X/*E*/
    X
    Xmain (ac, av)
    Xint     ac;
    Xchar    **av;
    X{
    X    char    *std_input = "standard input";  /* input file name      */
    X
    X    long    cur_time;               /* place for current raw time   */
    X
    X    long    *time();                /* return raw time from system  */
    X
    X    register int i;                 /* temporary for indexes, etc.  */
    X
    X    struct tm *tim;                 /* return from localtime        */
    X    struct tm *localtime ();
    X
    X    char    cmdbuf[40];             /* place to format sort command */
    X
    X    extern char *optarg;            /* option argument pointer      */
    X    extern int   optind;            /* option index                 */
    X
    X    pgm = basename (av[0]);
    X
    X    while ((i = getopt (ac, av, "bl:t:")) NE EOF)
    X    {
    X        switch (i)
    X        {
    X            case    'b':
    X                BASENAME = TRUE;
    X                break;
    X            case    'l':
    X                logging = atoi (optarg);
    X                break;
    X            case    't':
    X                tabstop = atoi (optarg);
    X                break;
    X            default:
    X                fprintf (stderr,
    X        "usage: %s [ -b<asename> ] [ -t <tabstop> ] [ files... ]\n",
    X                        pgm);
    X        }
    X    }
    X
    X    /* ------------------------------------------------------------ */
    X    /* set up the date/time portion of page headings                */
    X    /* ------------------------------------------------------------ */
    X
    X    time(&cur_time);
    X
    X    tim = localtime (&cur_time);
    X    sprintf (tim_lin, "Printed: %02d/%02d/%02d at %2d:%02d %s",
    X        tim->tm_mon + 1, tim->tm_mday, tim->tm_year,
    X        tim->tm_hour GT 12 ? tim->tm_hour - 12 : tim->tm_hour,
    X        tim->tm_min,
    X        tim->tm_hour GE 12 ? "PM" : "AM" );
    X
    X    /* ------------------------------------------------------------ */
    X    /* create the temporary file for the table of contents          */
    X    /*   don't bother if output is to a terminal                    */
    X    /* ------------------------------------------------------------ */
    X
    X    mktemp (tocname);
    X    if (!isatty (1))
    X    {
    X        tocfile = fopen (tocname, "w");
    X        if (!tocfile)
    X        {
    X            fprintf (stderr, "%s: unable to create tocfile %s\n",
    X                pgm, tocname);
    X            exit (2);
    X        }
    X    }
    X
    X    /* ------------------------------------------------------------ */
    X    /* if no file names, read standard input                        */
    X    /* ------------------------------------------------------------ */
    X
    X    if (optind EQ ac)
    X    {
    X        fd = stdin;
    X        file_name = std_input;
    X        dofile (fd);
    X    }
    X    else
    X    {
    X    /* ------------------------------------------------------------ */
    X    /* process each file named on the command line                  */
    X    /* ------------------------------------------------------------ */
    X
    X        for (i = optind; i LT ac; i++)
    X        {
    X    /* ------------------------------------------------------------ */
    X    /* special file name `-' is standard input                      */
    X    /* ------------------------------------------------------------ */
    X
    X            if (strcmp (av[i], "-") EQ 0)
    X            {
    X                fd = stdin;
    X                file_name = std_input;
    X            }
    X            else
    X            {
    X                fd = fopen (av[i], "r");
    X                if (fd EQ NULL)
    X                {
    X                    fprintf (stderr,
    X                        "cpg: unable to open %s\n", av[i]);
    X                }
    X            }
    X            if (fd NE NULL)
    X            {
    X                if (BASENAME) strcpy (fh_name, basename (av[i]));
    X                else strcpy (fh_name, av[i]);
    X                file_name = av[i];
    X                dofile (fd);
    X                fclose (fd);
    X            }
    X        }
    X    }
    X
    X    fflush (stdout);
    X
    X    /* ------------------------------------------------------------ */
    X    /* sort and print the table of contents - straight alpha order  */
    X    /* on function and file name                                    */
    X    /* ------------------------------------------------------------ */
    X
    X    if (!isatty (1))
    X    {
    X        fclose (tocfile);
    X        sprintf (cmdbuf, "sort +1 -2 +0 -1 -u -o %s %s", tocname, tocname);
    X        system (cmdbuf);
    X        tocfile = fopen (tocname, "r");
    X        if (!tocfile)
    X        {
    X            fprintf (stderr, "%s: unable to read tocfile\n", pgm);
    X            exit (2);
    X        }
    X        else
    X        {
    X            tocout (tocfile);
    X            fclose (tocfile);
    X            if (!logging) unlink (tocname);
    X        }
    X    }
    X
    X    fprintf (stdout, "\f");
    X
    X    exit (0);
    X}
    X/*Sdofile - process an input file */
    X/*Hdofile*/
    X/*E*/
    Xdofile (fd)
    XFILE    *fd;
    X{
    X    register int i;                 /* temporary                    */
    X
    X    int     lineno = 1;             /* line number in current file  */
    X
    X    register char *line;            /* current line pointer         */
    X
    X    char    ibuf[MAXWIDTH];         /* original input line          */
    X    char    ebuf[MAXWIDTH];         /* line with tabs expanded      */
    X
    X    register char *p;               /* temporary char pointer       */
    X
    X    /* ------------------------------------------------------------ */
    X    /* initialize the function name to `.' - unknown                */
    X    /* retrieve the basename portion of the file name               */
    X    /* ------------------------------------------------------------ */
    X
    X    strcpy (fnc_name, ".");
    X
    X    /* ------------------------------------------------------------ */
    X    /* if building TOC, add this entry                              */
    X    /* ------------------------------------------------------------ */
    X
    X    if (!isatty (1))
    X        fprintf (tocfile,
    X            "%s %s %d %d\n", fh_name, fnc_name, pageno, lineno);
    X
    X    /* ------------------------------------------------------------ */
    X    /* if tabs are to be expanded, use the expansion buffer         */
    X    /* ------------------------------------------------------------ */
    X
    X    if (tabstop) line = ebuf;
    X    else         line = ibuf;
    X
    X    /* ------------------------------------------------------------ */
    X    /* process each line in the file, looking for triggers          */
    X    /* ------------------------------------------------------------ */
    X
    X    while (fgets (ibuf, MAXWIDTH, fd) NE NULL)
    X    {
    X        if (logging GE 9) fprintf (stderr, "%s: LOG: %s", pgm, line);
    X    /* ------------------------------------------------------------ */
    X    /* expand the input line                                        */
    X    /* ------------------------------------------------------------ */
    X
    X        expand (ebuf, ibuf);
    X
    X        if (line[0] EQ SLASH AND line[1] EQ STAR)
    X        {
    X    /* ------------------------------------------------------------ */
    X    /* comment found - could be a trigger                           */
    X    /* ------------------------------------------------------------ */
    X
    X            switch (line[2])
    X            {
    X                case 'F':
    X                case 'H':
    X                {
    X                    if (logging GE 9) fprintf (stderr, "F/H header\n");
    X                    header (&lineno, line, fd);
    X                    break;
    X                }
    X                case 'P':
    X                {
    X                    if (logging GE 9) fprintf (stderr, "page break\n");
    X                    print_head ();
    X                    lineno++;
    X                    break;
    X                }
    X                case 'S':
    X                {
    X                    if (logging GE 9) fprintf (stderr, "subtitle\n");
    X                    getname (line, subttl);
    X                    lineno++;
    X                    break;
    X                }
    X                case 'T':
    X                {
    X                    if (logging GE 9) fprintf (stderr, "title\n");
    X                    getname (line, title);
    X                    /* print_head (); */
    X                    lineno++;
    X                    break;
    X                }
    X                default:
    X                {
    X                    if (logging GE 9) fprintf (stderr, "other comment\n");
    X                    print (&lineno, line);
    X                    break;
    X                }
    X            }
    X        }
    X        else
    X        {
    X    /* ------------------------------------------------------------ */
    X    /* not a comment - check for function declaration               */
    X    /* if a form feed is found, start a new page with header        */
    X    /* ------------------------------------------------------------ */
    X
    X            if (logging GE 9) fprintf (stderr, "not a comment\n");
    X            if (!nlvl AND !isatty (1)) infunc = ckfunc (lineno, line);
    X            if (*line EQ '\f') print_head ();
    X            else print (&lineno, line);
    X        }
    X    }
    X
    X    page_line = LPP+1;      /* force new page after file            */
    X    title[0] = NUL;         /* clear title and subtitle             */
    X    subttl[0] = NUL;
    X
    X    return;
    X}
    X/*Sheader - construct and print header box */
    X/*Hheader*/
    X/*E*/
    Xheader  (lineno, line, fd)
    Xregister int     *lineno;
    Xregister char    *line;
    Xregister FILE    *fd;
    X{
    X    register char *p;
    X
    X    if (line[2] EQ 'F')
    X    {
    X        getname (line, fh_name);
    X        if (BASENAME) strcpy (fh_name, basename (fh_name));
    X        strcpy (fnc_name, ".");
    X    }
    X    else if (line[2] EQ 'H')
    X    {
    X        getname (line, fnc_name);
    X    }
    X
    X    if (!isatty (1))
    X        fprintf (tocfile,
    X            "%s %s %d %d\n", fh_name, fnc_name, pageno, *lineno);
    X
    X    print_head ();
    X
    X    print (lineno, line);
    X
    X    while (fgets (line, MAXWIDTH, fd) NE NULL AND
    X            notend (line))
    X    {
    X        if (line[0] EQ SLASH AND line[1] EQ STAR AND line[2] EQ 'P')
    X        {
    X            print_head ();
    X            (*lineno)++;
    X        }
    X        else
    X        {
    X            print (lineno, line);
    X        }
    X    }
    X
    X    print (lineno, line);
    X
    X    return;
    X}
    X/*Sgetname - get a string from a signal line */
    X/*Hgetname */
    X/*E*/
    Xgetname (line, name)
    Xregister char    *line;
    Xregister char    *name;
    X{
    X    register int     i;
    X    register int     j;
    X
    X    /* ------------------------------------------------------------ */
    X    /* skip leading spaces in the trigger line                      */
    X    /* copy up to trailing asterisk or end-of-line                  */
    X    /* strip trailing spaces                                        */
    X    /* ------------------------------------------------------------ */
    X
    X    for (i = 3; isspace(line[i]) AND i LT MAXWIDTH; i++);
    X
    X    for (j = 0; line[i] AND line[i] NE '*'; i++, j++)
    X    {
    X        name[j] = line[i];
    X    }
    X
    X    while (j-- GT 0 AND isspace (name[j]));
    X
    X    name[++j] = NUL;
    X
    X    return;
    X}
    X/*Sprint - print a line with line number */
    X/*Hprint */
    X/*E*/
    Xprint (lineno, line)
    Xregister int     *lineno;
    Xregister char    *line;
    X{
    X    register int llen = strlen (line);
    X    register int i;
    X
    X    register char sc = specline ? '*' : ' ';
    X
    X    int     j = 0;
    X
    X    register char    dc = NUL;
    X
    X    /* ------------------------------------------------------------ */
    X    /* new page with header if page length is exceeded              */
    X    /* ------------------------------------------------------------ */
    X
    X    if (page_line GT LPP)
    X    {
    X        print_head ();
    X    }
    X
    X    /* ------------------------------------------------------------ */
    X    /* if brace(s) found,                                           */
    X    /*   modify the nesting level by the net nesting delta          */
    X    /*   select the indicator according to the net delta            */
    X    /*   if nexting is back to zero (none), clear function name     */
    X    /* ------------------------------------------------------------ */
    X
    X    if (fnd (line, &j))
    X    {
    X        nlvl += j;
    X
    X        if (j LT 0) dc = '<';
    X        else if (j EQ 0) dc = '*';
    X        else dc = '>';
    X
    X        i = nlvl;
    X        if (j LT 0) i++;
    X        fprintf (stdout, "%4d%c%2d%c ",
    X            (*lineno)++, sc, i, dc);
    X        if (nlvl EQ 0) strcpy (fnc_name, ".");
    X    }
    X    else
    X    {
    X        fprintf (stdout, "%4d%c    ", (*lineno)++, sc);
    X    }
    X
    X    /* ------------------------------------------------------------ */
    X    /* break up long lines by finding the first space form the end  */
    X    /* ------------------------------------------------------------ */
    X
    X    if (llen GT 71)
    X    {
    X        for (i = 70; i GE 0; i--)
    X        {
    X            if (line[i] EQ SPACE)
    X            {
    X                fprintf (stdout, "%*.*s \\\n", i, i, line);
    X                page_line++;
    X                break;
    X            }
    X        }
    X
    X        j = 79 - (llen - i);
    X
    X        for (j; j GE 0; j--) putc (SPACE, stdout);
    X
    X        fprintf (stdout, "%s", &line[i+1]);
    X    }
    X    else
    X    {
    X        fprintf (stdout, "%s", line);
    X    }
    X
    X    page_line++;
    X
    X    specline = FALSE;       /* true if function declaration     */
    X
    X    return;
    X}
    X/*Sprint_head - print the page heading with page number */
    X/*Hprint_head */
    X/*E*/
    Xprint_head ()
    X{
    X    char    headbuf[80];
    X    register int len;
    X
    X    sprintf (headbuf, "[ %s | %s <- %s",
    X        tim_lin, fh_name, fnc_name);
    X
    X    for (len = strlen (headbuf); len LT 68; len++) headbuf[len] = SPACE;
    X
    X    sprintf (&headbuf[68], "Page %-4d ]", pageno++);
    X    fprintf (stdout, "\f\n");
    X    if (!isatty (1))
    X        fprintf (stdout, "_______________________________________\
    X________________________________________");
    X    fprintf (stdout, "\n%s\n", headbuf);
    X    fprintf (stdout, "[-------------------------------+------\
    X---------------------------------------]\n");
    X
    X    if (*title)
    X    {
    X        sprintf (headbuf, "[    %s", title);
    X    }
    X    else
    X    {
    X        sprintf (headbuf, "[    %s", fh_name);
    X    }
    X    for (len = strlen (headbuf); len LT 78; len++) headbuf[len] = SPACE;
    X    headbuf[78] = ']';
    X    fprintf (stdout, "%s\n", headbuf);
    X
    X    if (*subttl)
    X    {
    X        sprintf (headbuf, "[    %s", subttl);
    X    }
    X    else
    X    {
    X        sprintf (headbuf, "[    %s", fnc_name);
    X    }
    X    for (len = strlen (headbuf); len LT 78; len++) headbuf[len] = SPACE;
    X    headbuf[78] = ']';
    X    fprintf (stdout, "%s", headbuf);
    X
    X    if (!isatty (1))
    X        fprintf (stdout, "\r_______________________________________\
    X________________________________________");
    X    fprintf (stdout, "\n\n");
    X
    X    page_line = LINESINHEAD;
    X
    X    return;
    X}
    X/*S fnd - return true if a brace is found */
    X/*H fnd */
    X/*E*/
    Xfnd (in, nchg)
    Xregister char *in;
    Xregister int    *nchg;
    X{
    X#   define LBRACE   '{'
    X#   define RBRACE   '}'
    X#   define SHARP    '#'
    X#   define COLON    ':'
    X
    X    register found = FALSE;         /* true if keyword found        */
    X
    X    register char blank = TRUE;     /* used to check for shell/make */
    X                                    /* comments beginning with #/:  */
    X    register int inshcomment = FALSE;   /* true if in shell comment */
    X
    X    *nchg = 0;              /* initialize net change to zero        */
    X
    X    /* ------------------------------------------------------------ */
    X    /* check each character of the line                             */
    X    /* ------------------------------------------------------------ */
    X
    X    for (in; *in; in++)
    X    {
    X        if (!incomment AND !inshcomment AND !indquote AND !insquote)
    X        {
    X            if (logging GE 9) fprintf (stderr, "not in comment or quote\n");
    X            if (*in EQ SLASH AND *(in+1) EQ STAR)
    X            {
    X                incomment = TRUE;
    X                blank = FALSE;
    X                if (logging GE 9) fprintf (stderr, "new comment\n");
    X            }
    X            else if (blank AND
    X                     ((*in EQ SHARP OR *in EQ COLON) AND
    X                     (*(in+1) NE LBRACE AND *(in+1) NE RBRACE))
    X                    )
    X            {
    X                inshcomment = TRUE;
    X                blank = FALSE;
    X                if (logging GE 9) fprintf (stderr, "new shell comment\n");
    X            }
    X            else if (*in EQ DQUOTE AND
    X                    (*(in-1) NE BSLASH OR *(in-2) EQ BSLASH))
    X            {
    X                indquote = TRUE;
    X                blank = FALSE;
    X                if (logging GE 9) fprintf (stderr, "new dquote\n");
    X            }
    X            else if (*in EQ SQUOTE AND
    X                    (*(in-1) NE BSLASH OR *(in-2) EQ BSLASH))
    X            {
    X                insquote = TRUE;
    X                blank = FALSE;
    X                if (logging GE 9) fprintf (stderr, "new squote\n");
    X            }
    X            else if (*in EQ LBRACE)
    X            {
    X                (*nchg)++;
    X                found = TRUE;
    X                blank = FALSE;
    X                if (logging GE 9) fprintf (stderr, "nest in\n");
    X            }
    X            else if (*in EQ RBRACE)
    X            {
    X                (*nchg)--;
    X                found = TRUE;
    X                blank = FALSE;
    X                if (logging GE 9) fprintf (stderr, "nest out\n");
    X            }
    X            else if (!isspace (*in))
    X            {
    X                blank = FALSE;
    X            }
    X        }
    X        else if (incomment AND *in EQ STAR AND *(in+1) EQ SLASH)
    X        {
    X            incomment = FALSE;
    X            if (logging GE 9) fprintf (stderr, "end comment\n");
    X        }
    X        else if (indquote AND *in EQ DQUOTE AND
    X                (*(in-1) NE BSLASH OR *(in-2) EQ BSLASH))
    X        {
    X            indquote = FALSE;
    X            if (logging GE 9) fprintf (stderr, "end dquote\n");
    X        }
    X        else if (insquote AND *in EQ SQUOTE AND
    X                (*(in-1) NE BSLASH OR *(in-2) EQ BSLASH))
    X        {
    X            insquote = FALSE;
    X            if (logging GE 9) fprintf (stderr, "end squote\n");
    X        }
    X    }
    X
    X    return found;
    X}
    X/*Stocout - print out the table of contents */
    X/*Htocout */
    X/*E*/
    Xtocout (toc)
    XFILE    *toc;
    X{
    X    char    buf[80];
    X    char    filenam[80];
    X    char    fncnam[80];
    X    int     page;
    X    int     line;
    X
    X    char    outline[80];
    X
    X    register int toclines = 99;
    X
    X    while (fscanf (toc, "%s%s%d%d", filenam, fncnam, &page, &line) EQ 4)
    X    {
    X        if (toclines GT 54)
    X        {
    X            printf ("\f\n\
    X                             _____________________\n\
    X                             [ TABLE OF CONTENTS ]\r\
    X                             _____________________\n\n\
    X                File -> Function                     Page    Line\r\
    X________________________________________\
    X________________________________________\n\n");
    X            toclines = 0;
    X        }
    X
    X        toclines++;
    X
    X        printf ("\
    X    %16s -> %-16.16s ............ %3d   %5d\n",
    X            filenam, *fncnam EQ '.' ? "START" : fncnam, page, line);
    X    }
    X    return;
    X}
    X/*S expand - expand tabs to tabstop */
    X/*H expand */
    X/*E*/
    Xexpand (to, from)
    Xregister char *to;
    Xregister char *from;
    X{
    X    register int i;
    X    register int tofill;
    X
    X#   define BACKSPACE '\b'
    X#   define FORMFEED '\f'
    X#   define NEWLINE '\n'
    X#   define RETURN '\r'
    X#   define TAB '\t'
    X
    X    i = 0;
    X
    X    while (*from)
    X    {
    X        switch (*from)
    X        {
    X            case    TAB:
    X                tofill = tabstop - (i % tabstop);
    X                i += tofill;
    X                while (tofill--) *(to++) = SPACE;
    X                break;
    X            case    NEWLINE:
    X            case    RETURN:
    X                i = 0;
    X            case    FORMFEED:
    X                *(to++) = *from;
    X                break;
    X            case    BACKSPACE:
    X                i--;
    X                *(to++) = *from;
    X                break;
    X            default:
    X                i++;
    X                *(to++) = *from;
    X                break;
    X        }
    X
    X        from++;
    X    }
    X
    X    *to = NUL;
    X
    X    return;
    X}
    X/*S ckfunc - check line for function declaration */
    X/*H ckfunc */
    X/*E*/
    X
    X#define isidchr(c) (isalnum(c) || (c == '_'))
    X
    Xckfunc (lineno, s)
    Xregister int lineno;
    Xregister char   *s;
    X{
    X    register char *p;
    X    register int  Cnt;
    X    register int  i;
    X    register int  result;
    X    register char found = FALSE;
    X
    X    static char *_fnm = "ckfunc";
    X
    X    char FunctionName[40];
    X
    X    if (logging GE 3)
    X    {
    X        fprintf (stderr,
    X            "%s<%s>: LOG: ckfunc called - line = %s",
    X            pgm, _fnm, s);
    X    }
    X
    X    if(!strcmp (fnc_name, ".") AND !incomment && !indquote && !insquote)
    X    {
    X        found = TRUE;
    X
    X        while (found)
    X        {
    X            found = FALSE;
    X            p = FunctionName;
    X            for (s; isascii (*s) && isspace (*s) && *s; s++);
    X            if( *s == '*' )
    X            {
    X                for (++s; isascii (*s) && isspace (*s) && *s; s++);
    X            }
    X
    X            if ((*s == '_') || isalpha(*s))
    X            {
    X                while (isidchr (*s)) *p++ = *s++;
    X
    X                *p = '\0';
    X
    X                for (found = FALSE, i = 0;
    X                     !found AND ReservedWord[i]; i++)
    X                {
    X                    if (!(result = strcmp (FunctionName, ReservedWord[i])))
    X                        found = TRUE;
    X
    X                    if  (result < 0) break;
    X                }
    X
    X                if (logging GE 3 AND found)
    X                {
    X                    fprintf (stderr,
    X                        "%s<%s>: LOG: reserved word = %s\n",
    X                        pgm, _fnm, FunctionName);
    X                }
    X            }
    X        }
    X
    X        if (logging GE 3)
    X        {
    X            fprintf (stderr,
    X                "%s<%s>: LOG: last word = %s\n",
    X                pgm, _fnm, FunctionName);
    X        }
    X
    X        for (s; isascii (*s) && isspace (*s) && *s; s++);
    X
    X        if (*s EQ '(')
    X        {
    X            for (found = FALSE; *s AND !found; s++)
    X                found = *s EQ ')';
    X
    X            if (found)
    X            {
    X                for (; *s AND isspace (*s); s++);
    X
    X                found = *s NE ';';
    X
    X                if (found)
    X                {
    X                    strcpy (fnc_name, FunctionName);
    X                    fprintf (tocfile,
    X                        "%s %s %d %d\n",
    X                        fh_name, fnc_name, pageno-1, lineno);
    X                    specline = TRUE;
    X                }
    X            }
    X        }
    X    }
    X
    X    if (logging GE 3)
    X    {
    X        fprintf (stderr,
    X    "%s<%s>: LOG: this line does%s contain a function declaration\n",
    X            pgm, _fnm, found ? "" : " not");
    X    }
    X
    X    return found;
    X}
    X/*S basename - return the basename part of a pathname */
    X/*H basename *********************************************************
    X*
    X*                                   basename
    X*
    X*  given a (presumed) pathname, return the part after the last slash
    X*
    X*********************************************************************/
    X/*E*/
    Xchar *
    Xbasename (str)
    Xregister char *str;
    X{
    X    register char *ret;
    X
    X    if (ret = strrchr (str, '/')) ret++;
    X    else ret = str;
    X
    X    return ret;
    X}
SHAR_EOF
if test 24738 -ne "`wc -c < 'cpg.c'`"
then
    echo shar: error transmitting "'cpg.c'" '(should have been 24738 characters)'
fi
fi # end of overwriting check
#    End of shell archive
exit 0