Source Code 1992 March/Source_Code_CD-ROM_Walnut_Creek_March_1992.iso/usenet/altsrcs/2/2259

Text File | 1990-12-28 | 5KB | 136 lines

Newsgroups: alt.sources
From: [e-mail] (Alexander Dupuy)
Subject: Re: Neat utility to convert uppercase filenames
Message-ID: <[e-mail]>
Date: 11 Dec 90 14:34:02

Well, I didn't write this, and if I did it now, I'd do it in perl, but it's
pretty cute, since it not only downcases files, it will strip directory names
and Twenex/VMS extensions and attributes.

: This is a shar archive.  Extract with sh, not csh.
: The rest of this file will extract:
:
:    xxu.c
:
echo x - xxu.c
sed 's/^X//' > xxu.c << '//go.sysin dd *'
X/*  X X U  --  20-to-Unix filename converter  */
X
X/*
X Change DEC-20 or VAX/VMS style filenames into normal Unix names.
X Handy for use after ftp MGETs, when you find your directory full of
X files with names like LIB:<KERMIT>CKUFIO.C.2 or FRED::[ETHEL]A.B;37
X when all you really wanted was ckufio.c and a.b.
X
X Usage: xxu file(s)
X
X Action: Renames argument files as follows:
X   strips Unix path name from front (up to rightmost '/') if present
X   strips DEC device:, node:: names from front (up to rightmost ':') if present
X   strips DEC-20 <directory> or VMS [directory] name if present
X   strips DEC-20 version number from end (everything after 2nd dot) if present
X   strips VMS generation number from end (everything after ';') if present
X   lowercases any uppercase letters
X   honors DEC-20 CTRL-V quote for special characters
X   discards unquoted unprintable characters
X   if result is null, file is renamed to xxfile-n, where n is a number.
X   if result would write over an existing file, file also renamed to xxfile-n.
X
X Recommended procedure: make a new directory, cd to it, then FTP files
X from DEC-20 or VMS system, then do "xxu *".
X
X Author:  F. da Cruz, CUCCA, July 85
X*/
X#include <stdio.h>
X#include <ctype.h>
X#include <sys/file.h>            /* For access() */
X
Xchar name[500];                /* File name buffer */
Xchar *pp, *cp, *xp;            /* Character pointers */
Xchar delim;                /* Directory Delimiter */
Xint dc = 0, n = 0;            /* Counters */
Xint quote = 0, indir = 0; done = 0;    /* Flags */
X
Xmain(argc,argv) int argc; char **argv; {
X
X    if (argc < 2) {            /* Give message if no args */
X    fprintf(stderr,"Usage: xxu file(s)\n");
X    exit(1);
X    }
X    n = 0;                /* Unfixable filename counter */
X    while (--argc > 0) {        /* For all files on command line... */
X    argv++;
X    xp = *argv;            /* Copy pointer for simplicity */
X    printf("%s ",*argv);        /* Echo name of this file */
X
X    pp = name;            /* Point to translation buffer */
X    *name = '\0';            /* Initialize buffer */
X    dc = 0;                /* Filename dot counter */
X    done = 0;            /* Flag for early completion */
X
X    for (cp = xp; (*cp != '\0') && !done; cp++) { /* Loop thru chars... */
X
X        if (quote) {        /* If this char quoted, */
X        *pp++ = *cp;        /*  include it literally. */
X        quote = 0;
X        }
X        else if (indir) {        /* If in directory name, */
X        if (*cp == delim) indir = 0; /* look for end delimiter. */
X        }
X        else switch (*cp) {
X        case '<':        /* Discard DEC-20 directory name */
X            indir = 1;
X            delim = '>';
X            break;
X        case '[':        /* Discard VMS directory name */
X            indir = 1;
X            delim = ']';
X            break;
X        case '/':        /* Discard Unix path name */
X        case '\\':        /*  or messy-dos path name */
X        case ':':               /*  or DEC dev: or node:: name */
X            pp = name;
X            break;
X        case '.':        /* DEC -20 generation number */
X                if (++dc == 1 && cp[1] != '.' && cp[1] != '\0')
X                *pp++ = *cp;    /* Keep first dot if nonempty .ext */
X            else        /* Discard everything starting */
X                done = 1;    /* with second dot. */
X            break;
X        case ';':        /* VMS generation or DEC-20 attrib */
X            done = 1;        /* Discard everything starting with */
X            break;        /* semicolon */
X            case '\026':        /* Control-V quote for special chars */
X            quote = 1;        /* Set flag for next time. */
X            break;
X        default:
X            if (isupper(*cp))      /* Uppercase letter to lowercase */
X                    *pp++ = tolower(*cp);
X            else if (isprint(*cp)) /* Other printable, just keep */
X                *pp++ = *cp;
X        }
X    }
X    *pp = '\0';            /* Done with name, terminate it */
X    if (strcmp(name,xp) == 0) {    /* If no renaming necessary, */
X        printf("(ok)\n");        /*  just give message. */
X        continue;
X        }
X    while (*name == '\0' || access(name,0) == 0) { /* Find unique name */
X        sprintf(name,"xxfile-%d",n++);
X    }
X    printf("=> %s ",name);        /* Tell what new name will be */
X    if (rename(xp,name) == 0)    /* Try to rename it */
X        printf("(ok)\n");        /* Say what happened */
X    else
X        perror("failed");
X    }
X    exit(0);                /* Done. */
X}
//go.sysin dd *
exit
--
--
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