diff options
Diffstat (limited to 'usr.bin/m4/misc.c')
| -rw-r--r-- | usr.bin/m4/misc.c | 414 |
1 files changed, 0 insertions, 414 deletions
diff --git a/usr.bin/m4/misc.c b/usr.bin/m4/misc.c deleted file mode 100644 index d7bc8cf..0000000 --- a/usr.bin/m4/misc.c +++ /dev/null @@ -1,414 +0,0 @@ -/* $OpenBSD: misc.c,v 1.41 2009/10/14 17:19:47 sthen Exp $ */ -/* $NetBSD: misc.c,v 1.24 2016/01/16 17:01:22 christos 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. 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. - */ -#if HAVE_NBTOOL_CONFIG_H -#include "nbtool_config.h" -#endif -#include <sys/cdefs.h> -__RCSID("$NetBSD: misc.c,v 1.24 2016/01/16 17:01:22 christos Exp $"); -#include <sys/types.h> -#include <errno.h> -#include <unistd.h> -#include <stdarg.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; - -unsigned char *buf; /* push-back buffer */ -unsigned char *bufbase; /* the base for current ilevel */ -unsigned char *bbase[MAXINP]; /* the base for each ilevel */ -unsigned char *bp; /* first available character */ -unsigned 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); -} -/* - * pushback - push character back onto input - */ -void -pushback(int c) -{ - if (c == EOF) - return; - if (bp >= endpbb) - enlarge_bufspace(); - *bp++ = c; -} - -/* - * pbstr - push string back onto input - * pushback is replicated to improve - * performance. - */ -void -pbstr(const char *s) -{ - size_t n; - - n = strlen(s); - while ((size_t)(endpbb - bp) <= n) - enlarge_bufspace(); - while (n > 0) - *bp++ = s[--n]; -} - -/* - * pbnum - convert number to string, push back on input. - */ -void -pbnum(int n) -{ - pbnumbase(n, 10, 0); -} - -void -pbnumbase(int n, int base, int d) -{ - static char digits[36] = "0123456789abcdefghijklmnopqrstuvwxyz"; - int num; - int printed = 0; - - if (base > 36) - m4errx(1, "base %d > 36: not supported.", base); - - if (base < 2) - m4errx(1, "bad base %d for conversion.", base); - - num = (n < 0) ? -n : n; - do { - pushback(digits[num % base]); - printed++; - } - while ((num /= base) > 0); - - if (n < 0) - printed++; - while (printed++ < d) - pushback('0'); - - if (n < 0) - pushback('-'); -} - -/* - * pbunsigned - convert unsigned long to string, push back on input. - */ -void -pbunsigned(unsigned long n) -{ - do { - pushback(n % 10 + '0'); - } - while ((n /= 10) > 0); -} - -void -initspaces(void) -{ - int i; - - strspace = xalloc(strsize+1, NULL); - ep = strspace; - endest = strspace+strsize; - buf = (unsigned char *)xalloc(bufsize, NULL); - bufbase = buf; - bp = buf; - endpbb = buf + bufsize; - for (i = 0; i < MAXINP; i++) - bbase[i] = buf; -} - -void -enlarge_strspace(void) -{ - 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(void) -{ - unsigned char *newbuf; - int i; - - bufsize += bufsize/2; - newbuf = xrealloc(buf, bufsize, "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]) - m4errx(1, "undivert: diversion still active."); - rewind(outfile[n]); - while ((c = getc(outfile[n])) != EOF) - putc(c, active); - (void) fclose(outfile[n]); - outfile[n] = NULL; -} - -/* - * killdiv - get rid of the diversion files - */ -void -killdiv(void) -{ - int n; - - for (n = 0; n < maxout; n++) - if (outfile[n] != NULL) { - (void) fclose(outfile[n]); - } -} - -void -m4errx(int exval, const char *fmt, ...) -{ - fprintf(stderr, "%s: ", getprogname()); - fprintf(stderr, "%s at line %lu: ", CURRENT_NAME, CURRENT_LINE); - if (fmt != NULL) { - va_list ap; - - va_start(ap, fmt); - vfprintf(stderr, fmt, ap); - va_end(ap); - } - fprintf(stderr, "\n"); - exit(exval); -} - -/* - * resizedivs: allocate more diversion files */ -void -resizedivs(int n) -{ - int i; - - outfile = (FILE **)xrealloc(outfile, sizeof(FILE *) * n, - "too many diverts %d", n); - for (i = maxout; i < n; i++) - outfile[i] = NULL; - maxout = n; -} - -void * -xalloc(size_t n, const char *fmt, ...) -{ - void *p = malloc(n); - - if (p == NULL) { - if (fmt == NULL) - err(1, "malloc"); - else { - va_list va; - - va_start(va, fmt); - verr(1, fmt, va); - va_end(va); - } - } - return p; -} - -void * -xrealloc(void *old, size_t n, const char *fmt, ...) -{ - char *p = realloc(old, n); - - if (p == NULL) { - free(old); - if (fmt == NULL) - err(1, "realloc"); - else { - va_list va; - - va_start(va, fmt); - verr(1, fmt, va); - va_end(va); - } - } - return p; -} - -char * -xstrdup(const char *s) -{ - char *p = strdup(s); - if (p == NULL) - err(1, "strdup"); - return p; -} - -int -obtain_char(struct input_file *f) -{ - if (f->c == EOF) - return EOF; - - f->c = fgetc(f->file); -#ifndef REAL_FREEZE - if (freezef) - fputc(f->c, freezef); -#endif - if (f->c == '\n') - f->lineno++; - - 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); - emit_synchline(); -} - -void -do_emit_synchline(void) -{ - fprintf(active, "#line %lu \"%s\"\n", - infile[ilevel].lineno, infile[ilevel].name); - infile[ilevel].synch_lineno = infile[ilevel].lineno; -} - -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(TOKEN_LINE(f)); -} - -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(void) -{ - return bp - buf; -} - - -void -dump_buffer(FILE *f, size_t m) -{ - unsigned char *s; - - for (s = bp; (size_t)(s - buf) > m;) - fputc(*--s, f); -} |