diff options
Diffstat (limited to 'usr.bin/m4/misc.c')
| -rw-r--r-- | usr.bin/m4/misc.c | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/usr.bin/m4/misc.c b/usr.bin/m4/misc.c deleted file mode 100644 index 291c2192fde5..000000000000 --- a/usr.bin/m4/misc.c +++ /dev/null @@ -1,360 +0,0 @@ -/* $OpenBSD: misc.c,v 1.27 2002/04/26 16:15:16 espie Exp $ */ -/* $NetBSD: misc.c,v 1.6 1995/09/28 05:37:41 tls Exp $ */ - -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Ozan Yigit at York University. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/6/93"; -#else -static char rcsid[] = "$OpenBSD: misc.c,v 1.27 2002/04/26 16:15:16 espie Exp $"; -#endif -#endif /* not lint */ - -#include <sys/types.h> -#include <errno.h> -#include <unistd.h> -#include <stdio.h> -#include <stdlib.h> -#include <stddef.h> -#include <string.h> -#include <err.h> -#include "mdef.h" -#include "stdd.h" -#include "extern.h" -#include "pathnames.h" - - -char *ep; /* first free char in strspace */ -static char *strspace; /* string space for evaluation */ -char *endest; /* end of string space */ -static size_t strsize = STRSPMAX; -static size_t bufsize = BUFSIZE; - -char *buf; /* push-back buffer */ -char *bufbase; /* the base for current ilevel */ -char *bbase[MAXINP]; /* the base for each ilevel */ -char *bp; /* first available character */ -char *endpbb; /* end of push-back buffer */ - - -/* - * find the index of second str in the first str. - */ -ptrdiff_t -indx(const char *s1, const char *s2) -{ - char *t; - - t = strstr(s1, s2); - if (t == NULL) - return (-1); - else - return (t - s1); -} -/* - * putback - push character back onto input - */ -void -putback(int c) -{ - if (c == EOF) - return; - if (bp >= endpbb) - enlarge_bufspace(); - *bp++ = c; -} - -/* - * pbstr - push string back onto input - * putback is replicated to improve - * performance. - */ -void -pbstr(const char *s) -{ - size_t n; - - n = strlen(s); - while (endpbb - bp <= n) - enlarge_bufspace(); - while (n > 0) - *bp++ = s[--n]; -} - -/* - * pbnum - convert number to string, push back on input. - */ -void -pbnum(int n) -{ - int num; - - num = (n < 0) ? -n : n; - do { - putback(num % 10 + '0'); - } - while ((num /= 10) > 0); - - if (n < 0) - putback('-'); -} - -/* - * pbunsigned - convert unsigned long to string, push back on input. - */ -void -pbunsigned(unsigned long n) -{ - do { - putback(n % 10 + '0'); - } - while ((n /= 10) > 0); -} - -void -initspaces() -{ - int i; - - strspace = xalloc(strsize+1); - ep = strspace; - endest = strspace+strsize; - buf = (char *)xalloc(bufsize); - bufbase = buf; - bp = buf; - endpbb = buf + bufsize; - for (i = 0; i < MAXINP; i++) - bbase[i] = buf; -} - -void -enlarge_strspace() -{ - char *newstrspace; - int i; - - strsize *= 2; - newstrspace = malloc(strsize + 1); - if (!newstrspace) - errx(1, "string space overflow"); - memcpy(newstrspace, strspace, strsize/2); - for (i = 0; i <= sp; i++) - if (sstack[i]) - mstack[i].sstr = (mstack[i].sstr - strspace) - + newstrspace; - ep = (ep-strspace) + newstrspace; - free(strspace); - strspace = newstrspace; - endest = strspace + strsize; -} - -void -enlarge_bufspace() -{ - char *newbuf; - int i; - - bufsize *= 2; - newbuf = realloc(buf, bufsize); - if (!newbuf) - errx(1, "too many characters pushed back"); - for (i = 0; i < MAXINP; i++) - bbase[i] = (bbase[i]-buf)+newbuf; - bp = (bp-buf)+newbuf; - bufbase = (bufbase-buf)+newbuf; - buf = newbuf; - endpbb = buf+bufsize; -} - -/* - * chrsave - put single char on string space - */ -void -chrsave(int c) -{ - if (ep >= endest) - enlarge_strspace(); - *ep++ = c; -} - -/* - * read in a diversion file, and dispose it. - */ -void -getdiv(int n) -{ - int c; - - if (active == outfile[n]) - errx(1, "undivert: diversion still active"); - rewind(outfile[n]); - while ((c = getc(outfile[n])) != EOF) - putc(c, active); - (void) fclose(outfile[n]); - outfile[n] = NULL; -} - -void -onintr(int signo) -{ -#define intrmessage "m4: interrupted.\n" - write(STDERR_FILENO, intrmessage, sizeof(intrmessage)-1); - _exit(1); -} - -/* - * killdiv - get rid of the diversion files - */ -void -killdiv() -{ - int n; - - for (n = 0; n < maxout; n++) - if (outfile[n] != NULL) { - (void) fclose(outfile[n]); - } -} - -/* - * resizedivs: allocate more diversion files */ -void -resizedivs(int n) -{ - int i; - - outfile = (FILE **)realloc(outfile, sizeof(FILE *) * n); - if (outfile == NULL) - errx(1, "too many diverts %d", n); - for (i = maxout; i < n; i++) - outfile[i] = NULL; - maxout = n; -} - -void * -xalloc(size_t n) -{ - char *p = malloc(n); - - if (p == NULL) - err(1, "malloc"); - return p; -} - -char * -xstrdup(const char *s) -{ - char *p = strdup(s); - if (p == NULL) - err(1, "strdup"); - return p; -} - -void -usage() -{ - fprintf(stderr, "usage: m4 [-Dname[=val]] [-Uname] [-I dirname...]\n"); - exit(1); -} - -int -obtain_char(struct input_file *f) -{ - if (f->c == EOF) - return EOF; - else if (f->c == '\n') - f->lineno++; - - f->c = fgetc(f->file); - return f->c; -} - -void -set_input(struct input_file *f, FILE *real, const char *name) -{ - f->file = real; - f->lineno = 1; - f->c = 0; - f->name = xstrdup(name); -} - -void -release_input(struct input_file *f) -{ - if (f->file != stdin) - fclose(f->file); - f->c = EOF; - /* - * XXX can't free filename, as there might still be - * error information pointing to it. - */ -} - -void -doprintlineno(struct input_file *f) -{ - pbunsigned(f->lineno); -} - -void -doprintfilename(struct input_file *f) -{ - pbstr(rquote); - pbstr(f->name); - pbstr(lquote); -} - -/* - * buffer_mark/dump_buffer: allows one to save a mark in a buffer, - * and later dump everything that was added since then to a file. - */ -size_t -buffer_mark() -{ - return bp - buf; -} - - -void -dump_buffer(FILE *f, size_t m) -{ - char *s; - - for (s = bp; s-buf > m;) - fputc(*--s, f); -} |