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- /*
- * Copyright (c) 1983 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Asa Romberger and Jerry Berkman.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that: (1) source distributions retain this entire copyright
- * notice and comment, and (2) distributions including binaries display
- * the following acknowledgement: ``This product includes software
- * developed by the University of California, Berkeley and its contributors''
- * in the documentation or other materials provided with the distribution
- * and in all advertising materials mentioning features or use of this
- * software. Neither the name of the University nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- char copyright[] =
- "@(#) Copyright (c) 1983 The Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)fsplit.c 5.4 (Berkeley) 6/1/90";
- #endif /* not lint */
-
- #include <ctype.h>
- #include <stdio.h>
- #include <sys/types.h>
- #include <sys/stat.h>
-
- /*
- * usage: fsplit [-e efile] ... [file]
- *
- * split single file containing source for several fortran programs
- * and/or subprograms into files each containing one
- * subprogram unit.
- * each separate file will be named using the corresponding subroutine,
- * function, block data or program name if one is found; otherwise
- * the name will be of the form mainNNN.f or blkdtaNNN.f .
- * If a file of that name exists, it is saved in a name of the
- * form zzz000.f .
- * If -e option is used, then only those subprograms named in the -e
- * option are split off; e.g.:
- * fsplit -esub1 -e sub2 prog.f
- * isolates sub1 and sub2 in sub1.f and sub2.f. The space
- * after -e is optional.
- *
- * Modified Feb., 1983 by Jerry Berkman, Computing Services, U.C. Berkeley.
- * - added comments
- * - more function types: double complex, character*(*), etc.
- * - fixed minor bugs
- * - instead of all unnamed going into zNNN.f, put mains in
- * mainNNN.f, block datas in blkdtaNNN.f, dups in zzzNNN.f .
- *
- * Modified Apr., 1993 by Fred Walsteijn (walsteyn@fys.ruu.nl), IMAU, Utrecht University, The Netherlands
- * - "register rv" changed to "register int rv"; "int argc" added.
- * - #ifdef MPW then polish for Macintosh/MPW Shell: setbuf() added (progress report
- * should not be buffered); further the Unix link()/unlink()-pair is then replaced
- * by the ANSI rename().
- */
-
- #define BSZ 512
- char buf[BSZ];
- FILE *ifp;
- char x[]="zzz000.f",
- mainp[]="main000.f",
- blkp[]="blkdta000.f";
- char *look(), *skiplab(), *functs();
-
- #define TRUE 1
- #define FALSE 0
- int extr = FALSE,
- extrknt = -1,
- extrfnd[100];
- char extrbuf[1000],
- *extrnames[100];
- struct stat sbuf;
-
- #define trim(p) while (*p == ' ' || *p == '\t') p++
-
- main(argc, argv)
- int argc;
- char **argv;
- {
- register FILE *ofp; /* output file */
- register int rv; /* 1 if got card in output file, 0 otherwise */
- register char *ptr;
- int nflag, /* 1 if got name of subprog., 0 otherwise */
- retval,
- i;
- char name[20],
- *extrptr = extrbuf;
-
- #ifdef MPW
- setbuf(stdout,NULL); /* fsplit works nicer in MPW Shell if stdout isn't buffered */
- #endif
- /* scan -e options */
- while ( argc > 1 && argv[1][0] == '-' && argv[1][1] == 'e') {
- extr = TRUE;
- ptr = argv[1] + 2;
- if(!*ptr) {
- argc--;
- argv++;
- if(argc <= 1) badparms();
- ptr = argv[1];
- }
- extrknt = extrknt + 1;
- extrnames[extrknt] = extrptr;
- extrfnd[extrknt] = FALSE;
- while(*ptr) *extrptr++ = *ptr++;
- *extrptr++ = 0;
- argc--;
- argv++;
- }
-
- if (argc > 2)
- badparms();
- else if (argc == 2) {
- if ((ifp = fopen(argv[1], "r")) == NULL) {
- fprintf(stderr, "fsplit: cannot open %s\n", argv[1]);
- exit(1);
- }
- }
- else
- ifp = stdin;
- for(;;) {
- /* look for a temp file that doesn't correspond to an existing file */
- get_name(x, 3);
- ofp = fopen(x, "w");
- nflag = 0;
- rv = 0;
- while (getline() > 0) {
- rv = 1;
- fprintf(ofp, "%s", buf);
- if (lend()) /* look for an 'end' statement */
- break;
- if (nflag == 0) /* if no name yet, try and find one */
- nflag = lname(name);
- }
- fclose(ofp);
- if (rv == 0) { /* no lines in file, forget the file */
- unlink(x);
- retval = 0;
- for ( i = 0; i <= extrknt; i++ )
- if(!extrfnd[i]) {
- retval = 1;
- fprintf( stderr, "fsplit: %s not found\n",
- extrnames[i]);
- }
- exit( retval );
- }
- if (nflag) { /* rename the file */
- if(saveit(name)) {
- if (stat(name, &sbuf) < 0 ) {
- #ifndef MPW
- link(x, name);
- unlink(x);
- #else
- rename(x, name);
- #endif
- printf("%s\n", name);
- continue;
- } else if (strcmp(name, x) == 0) {
- printf("%s\n", x);
- continue;
- }
- printf("%s already exists, put in %s\n", name, x);
- continue;
- } else
- unlink(x);
- continue;
- }
- if(!extr)
- printf("%s\n", x);
- else
- unlink(x);
- }
- }
-
- badparms()
- {
- fprintf(stderr, "fsplit: usage: fsplit [-e efile] ... [file] \n");
- exit(1);
- }
-
- saveit(name)
- char *name;
- {
- int i;
- char fname[50],
- *fptr = fname;
-
- if(!extr) return(1);
- while(*name) *fptr++ = *name++;
- *--fptr = 0;
- *--fptr = 0;
- for ( i=0 ; i<=extrknt; i++ )
- if( strcmp(fname, extrnames[i]) == 0 ) {
- extrfnd[i] = TRUE;
- return(1);
- }
- return(0);
- }
-
- get_name(name, letters)
- char *name;
- int letters;
- {
- register char *ptr;
-
- while (stat(name, &sbuf) >= 0) {
- for (ptr = name + letters + 2; ptr >= name + letters; ptr--) {
- (*ptr)++;
- if (*ptr <= '9')
- break;
- *ptr = '0';
- }
- if(ptr < name + letters) {
- fprintf( stderr, "fsplit: ran out of file names\n");
- exit(1);
- }
- }
- }
-
- getline()
- {
- register char *ptr;
-
- for (ptr = buf; ptr < &buf[BSZ]; ) {
- *ptr = getc(ifp);
- if (feof(ifp))
- return (-1);
- if (*ptr++ == '\n') {
- *ptr = 0;
- return (1);
- }
- }
- while (getc(ifp) != '\n' && feof(ifp) == 0) ;
- fprintf(stderr, "line truncated to %d characters\n", BSZ);
- return (1);
- }
-
- /* return 1 for 'end' alone on card (up to col. 72), 0 otherwise */
- lend()
- {
- register char *p;
-
- if ((p = skiplab(buf)) == 0)
- return (0);
- trim(p);
- if (*p != 'e' && *p != 'E') return(0);
- p++;
- trim(p);
- if (*p != 'n' && *p != 'N') return(0);
- p++;
- trim(p);
- if (*p != 'd' && *p != 'D') return(0);
- p++;
- trim(p);
- if (p - buf >= 72 || *p == '\n')
- return (1);
- return (0);
- }
-
- /* check for keywords for subprograms
- return 0 if comment card, 1 if found
- name and put in arg string. invent name for unnamed
- block datas and main programs. */
- lname(s)
- char *s;
- {
- # define LINESIZE 80
- register char *ptr, *p, *sptr;
- char line[LINESIZE], *iptr = line;
-
- /* first check for comment cards */
- if(buf[0] == 'c' || buf[0] == 'C' || buf[0] == '*') return(0);
- ptr = buf;
- while (*ptr == ' ' || *ptr == '\t') ptr++;
- if(*ptr == '\n') return(0);
-
-
- ptr = skiplab(buf);
-
- /* copy to buffer and converting to lower case */
- p = ptr;
- while (*p && p <= &buf[71] ) {
- *iptr = isupper(*p) ? tolower(*p) : *p;
- iptr++;
- p++;
- }
- *iptr = '\n';
-
- if ((ptr = look(line, "subroutine")) != 0 ||
- (ptr = look(line, "function")) != 0 ||
- (ptr = functs(line)) != 0) {
- if(scan_name(s, ptr)) return(1);
- strcpy( s, x);
- } else if((ptr = look(line, "program")) != 0) {
- if(scan_name(s, ptr)) return(1);
- get_name( mainp, 4);
- strcpy( s, mainp);
- } else if((ptr = look(line, "blockdata")) != 0) {
- if(scan_name(s, ptr)) return(1);
- get_name( blkp, 6);
- strcpy( s, blkp);
- } else if((ptr = functs(line)) != 0) {
- if(scan_name(s, ptr)) return(1);
- strcpy( s, x);
- } else {
- get_name( mainp, 4);
- strcpy( s, mainp);
- }
- return(1);
- }
-
- scan_name(s, ptr)
- char *s, *ptr;
- {
- char *sptr;
-
- /* scan off the name */
- trim(ptr);
- sptr = s;
- while (*ptr != '(' && *ptr != '\n') {
- if (*ptr != ' ' && *ptr != '\t')
- *sptr++ = *ptr;
- ptr++;
- }
-
- if (sptr == s) return(0);
-
- *sptr++ = '.';
- *sptr++ = 'f';
- *sptr++ = 0;
- return(1);
- }
-
- char *functs(p)
- char *p;
- {
- register char *ptr;
-
- /* look for typed functions such as: real*8 function,
- character*16 function, character*(*) function */
-
- if((ptr = look(p,"character")) != 0 ||
- (ptr = look(p,"logical")) != 0 ||
- (ptr = look(p,"real")) != 0 ||
- (ptr = look(p,"integer")) != 0 ||
- (ptr = look(p,"doubleprecision")) != 0 ||
- (ptr = look(p,"complex")) != 0 ||
- (ptr = look(p,"doublecomplex")) != 0 ) {
- while ( *ptr == ' ' || *ptr == '\t' || *ptr == '*'
- || (*ptr >= '0' && *ptr <= '9')
- || *ptr == '(' || *ptr == ')') ptr++;
- ptr = look(ptr,"function");
- return(ptr);
- }
- else
- return(0);
- }
-
- /* if first 6 col. blank, return ptr to col. 7,
- if blanks and then tab, return ptr after tab,
- else return 0 (labelled statement, comment or continuation */
- char *skiplab(p)
- char *p;
- {
- register char *ptr;
-
- for (ptr = p; ptr < &p[6]; ptr++) {
- if (*ptr == ' ')
- continue;
- if (*ptr == '\t') {
- ptr++;
- break;
- }
- return (0);
- }
- return (ptr);
- }
-
- /* return 0 if m doesn't match initial part of s;
- otherwise return ptr to next char after m in s */
- char *look(s, m)
- char *s, *m;
- {
- register char *sp, *mp;
-
- sp = s; mp = m;
- while (*mp) {
- trim(sp);
- if (*sp++ != *mp++)
- return (0);
- }
- return (sp);
- }
-