It is currently Fri, 25 Apr 2014 05:00:21 GMT



 
Author Message
 CCOUNT readability metrics tool for C programs available

A simple measurement tool for C programs called 'ccount' (written
by Joerg Lawrenz) is available for anonymous ftp
   from i41s10.ira.uka.de [129.13.13.110]
   in /pub/ccount.tar.Z (100 kB)
It will also appear on comp.sources.misc in a few days.

The README file follows below

  Lutz

Lutz Prechelt   (email: prech...@ira.uka.de)            | Whenever you
Institut fuer Programmstrukturen und Datenorganisation  | complicate things,
Universitaet Karlsruhe;  76128 Karlsruhe;  Germany      | they get
(Voice: ++49/721/608-4068, FAX: ++49/721/694092)        | less simple.

  README file for 'ccount' analysis tools
===========================================

'ccount' is a set of simple tools for the analysis of the syntactic
readability of C source programs.

The attributes computed by the ccount tools are things such as
  - length of modules/functions/blocks/ifs/whiles/switches,
  - number of control structures
  - number of operators in expressions,
  - nesting depth of blocks    etc.

ccount consists of the kernel analysis tool 'ccount', which performs
syntactic analysis of C programs WITHOUT running the preprocessor,
a simple front end 'ccounter' to simplify the use of 'ccount',
and a number of statistical analysis tools that generate reports
from the tons of data produced by running 'ccount' on a lot of C
source files.

These statistics include
   - averages
   - medians
   - 25%, 75%, 90%, 95%, 98%, and 99% quantiles
   - sums
   - fractions
of various of the attributes (and combinations of them) over a set of
analyzed source files.

Environment:
------------

'ccount' is implemented as one C program (using a LEX scanner and
a YACC parser) and a set of scripts (Bourne-Shell and Perl).
To compile and run ccount you only need a C compiler, sh, and perl.

Installation:
-------------

To compile 'ccount' just type 'make'.
This should generate a single executable 'ccount'.
Put this executable and the scripts 'statty*' and 'ccounter' into
any directory that is in your $PATH. That's all.

Manifest:
----------

The ccount package consists of the following files:

README      (this file)
README.1    Description of 'ccount' and 'ccounter'
README.2    Description of statistical tools 'statty*'
Makefile    Makefile
ccount      Executable 'ccount' command [must be generated by make]
ccount.l    Source file of LEX scanner
ccount.y    Source file of YACC parser
ccounter    Script to simplify use of 'ccount'
lex.yy.c    C code generated by LEX from ccount.l
statty      "Generate all reports"-script
stattyB     Blocks report script
stattyCSE   Control structure and expression report script
stattyF     Function report script
stattyM     Module report script
y.tab.c     C code generated by YACC from ccount.y
y.tab.h     C header file generated by YACC from ccount.y



 Mon, 26 Aug 1996 22:40:00 GMT   
 CCOUNT readability metrics tool for C programs available

I'm interested in this, but I can't seem to ftp to it.  The address is unknown.
Is it shown correctly here?

Dale
dhgilli...@yvax.byu.edu



 Sun, 01 Sep 1996 02:10:57 GMT   
 CCOUNT readability metrics tool for C programs available

Unless I am doing something radically wrong I found it to be rather
useless.  It couldnt parse ANY of my code.  Not even a simple
15 liner.  Hopefully later releases will be better....

-----------------------------------------------------------------------
  John Cavanaugh          
   cavan...@ecn.purdue.edu                          Purdue University
-----------------------------------------------------------------------
-----------------------  No fancy quote today  ------------------------
-----------------------------------------------------------------------



 Sun, 01 Sep 1996 05:00:21 GMT   
 CCOUNT readability metrics tool for C programs available

I have a version of ccount but I'm not sure where it came from.
I do use it though, even though its results are sometimes slightly
inaccurate. The program is quite short so the code is given below:-
                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~

/*
    Program to count number of lines in C source file.
*/

#include <stdio.h>
#include <ctype.h>
#include <errno.h>

#define MAXLINE (100)
#define BLANK   (0)
#define CODE    (1)
#define COMMENT (2)

main(argc, argv)
int             argc;
char          **argv;
{
    FILE           *fp;

    char            c;
    char            line[MAXLINE];

    int             i, j, k, flen;
    int             lineType,
                    inComment;
    long            nCodeTotal,
                    nBlankTotal,
                    nCommentTotal;
    long            nCode,
                    nBlank,
                    nComment,
                    nTotal;

    /* ---------------------------------------------------------------- */

    if (argc < 2)
    {
        fprintf(stderr, "Usage: %s filename [filename...]\n", argv[0]);
        exit(0);
    }

    flen = strlen(argv[1]);
    for (i = 2; i < argc; i++)
        if (strlen(argv[i]) > flen)
            flen = strlen(argv[i]);

    for (i = 8; i < flen; i++)
        printf (" ");

    printf("%s       %6s     %6s    %6s        %6s\n",
                "File Name", "Source", "Comments", "Blank", "Total");

    for (i = 0; i < flen; i++)
        printf (" ");
    for (i = 0; i < 4; i++)
        printf (" ");

    printf("%s  %6s  %%    %6s  %%    %6s  %%     %6s\n\n",
            "", "Lines", "Lines", "Lines", "Lines");

    nCodeTotal = nBlankTotal = nCommentTotal = 0;

    for (i = 1; i < argc; i++)
    {
        nCode = nBlank = nComment = 0;

        fp = fopen(argv[i], "r");
        if (fp != NULL)
        {
            while (fgets(line, MAXLINE, fp) != NULL)
            {
                /* Is there a start of comment in the line */

                lineType = BLANK;
                j = 0;

                while (c = line[j++])
                {
                    if (isgraph(c))
                        lineType = CODE;

                    if (c == '/' && line[j] == '*')
                    {
                        /* Start of comment */

                        lineType = COMMENT;

                        /* Consume the rest of the line */

                        inComment = 1;
                        nComment++;

                        while (c = line[j++])
                        {
                            if (c == '*' && line[j] == '/')
                            {
                                inComment = 0;
                                break;
                            }
                        }

                        if (inComment)
                        {
                               /*
                                * Keep consuming lines until the end of comment
                                * marker is found.
                                */

                            while (fgets(line, MAXLINE, fp) != NULL)
                            {
                                j = 0;

                                while (c = line[j++])
                                {
                                    if (c == '*' && line[j] == '/')
                                    {
                                        inComment = 0;
                                        break;
                                    }
                                }
                                if (inComment)
                                {
                                    nComment++;
                                }
                                else
                                {
                                    break;
                                }
                            }
                        }
                        break;
                    }
                }

                if (lineType == CODE)
                {
                    nCode++;
                }
                else if (lineType == BLANK)
                {
                    nBlank++;
                }
            }

            fclose(fp);

        }
        else
        {
            if (errno > 0)
                perror("Opening file");
        }

        nCodeTotal += nCode;
        nBlankTotal += nBlank;
        nCommentTotal += nComment;

        nTotal = nCode + nBlank + nComment;

        if (nTotal > 0)
        {
            printf ("    %s", argv[i]);
            for (k = strlen(argv[i]); k < flen; k++)
                printf (" ");

            printf("  %6d %3d   %6d %3d   %6d %3d  %6d\n",
                   nCode, nCode * 100 / nTotal,
                   nComment, nComment * 100 / nTotal,
                   nBlank, nBlank * 100 / nTotal, nTotal);
        }

    }

    printf("\n                 -----------------------------------------\n\n");

    printf("   %12s   %6s       %6s    %6s     %6s\n", "", "Source", "Comments", "Blank", "Total");
    printf("   %12s  %6s  %%    %6s  %%    %6s  %%  %6s\n\n", "", "Lines", "Lines", "Lines", "Lines");

    --argc;
    nTotal = nCodeTotal + nBlankTotal + nCommentTotal;

    printf("   %12s  %6d       %6d       %6d      %6d\n",
           "Totals", nCodeTotal, nCommentTotal, nBlankTotal, nTotal);
    printf("   %12s  %6d %3d   %6d %3d   %6d %3d  %6d\n",
           "Averages", nCodeTotal / argc, nCodeTotal * 100 / nTotal,
           nCommentTotal / argc, nCommentTotal * 100 / nTotal,
           nBlankTotal / argc, nBlankTotal * 100 / nTotal, nTotal / argc);

    printf("\n   %12s  %d\n", "Number of files", argc);

/* ------------------------------------------------------------------------ */

--
Andrew Peter Marlow
APM Software Ltd
email: and...@apmsl.demon.co.uk



 Thu, 05 Sep 1996 17:35:03 GMT   
 
   [ 4 post ] 

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