diff options
Diffstat (limited to 'StdLib/LibC/Stdio/fparseln.c')
| -rw-r--r-- | StdLib/LibC/Stdio/fparseln.c | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/StdLib/LibC/Stdio/fparseln.c b/StdLib/LibC/Stdio/fparseln.c deleted file mode 100644 index be1a42fb6b..0000000000 --- a/StdLib/LibC/Stdio/fparseln.c +++ /dev/null @@ -1,258 +0,0 @@ -/*
- Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License that accompanies this
- distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
- * Copyright (c) 1997 Christos Zoulas. All rights reserved.
- *
- * 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 Christos Zoulas.
- * 4. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
-
- NetBSD: fparseln.c,v 1.5 2004/06/20 22:20:15 jmc Exp
-*/
-#include <LibConfig.h>
-#include <sys/EfiCdefs.h>
-
-#include "namespace.h"
-
-#include <assert.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#ifdef __weak_alias
-__weak_alias(fparseln,_fparseln)
-#endif
-
-#if ! HAVE_FPARSELN
-
-#ifndef HAVE_NBTOOL_CONFIG_H
-#include "reentrant.h"
-#include "local.h"
-#else
-#define FLOCKFILE(fp)
-#define FUNLOCKFILE(fp)
-#endif
-
-#if defined(_REENTRANT) && !HAVE_NBTOOL_CONFIG_H
-#define __fgetln(f, l) __fgetstr(f, l, '\n')
-#else
-#define __fgetln(f, l) fgetln(f, l)
-#endif
-
-static int isescaped(const char *, const char *, int);
-
-/* isescaped():
- * Return true if the character in *p that belongs to a string
- * that starts in *sp, is escaped by the escape character esc.
- */
-static int
-isescaped(const char *sp, const char *p, int esc)
-{
- const char *cp;
- size_t ne;
-
- _DIAGASSERT(sp != NULL);
- _DIAGASSERT(p != NULL);
-
- /* No escape character */
- if (esc == '\0')
- return 1;
-
- /* Count the number of escape characters that precede ours */
- for (ne = 0, cp = p; --cp >= sp && *cp == esc; ne++)
- continue;
-
- /* Return true if odd number of escape characters */
- return (ne & 1) != 0;
-}
-
-
-/* fparseln():
- * Read a line from a file parsing continuations ending in \
- * and eliminating trailing newlines, or comments starting with
- * the comment char.
- */
-char *
-fparseln(FILE *fp, size_t *size, size_t *lineno, const char str[3], int flags)
-{
- static const char dstr[3] = { '\\', '\\', '#' };
-
- size_t s, len;
- char *buf;
- char *ptr, *cp;
- int cnt;
- char esc, con, nl, com;
-
- _DIAGASSERT(fp != NULL);
- if(fp == NULL) {
- errno = EINVAL;
- return (NULL);
- }
-
- len = 0;
- buf = NULL;
- cnt = 1;
-
- if (str == NULL)
- str = dstr;
-
- esc = str[0];
- con = str[1];
- com = str[2];
- /*
- * XXX: it would be cool to be able to specify the newline character,
- * but unfortunately, fgetln does not let us
- */
- nl = '\n';
-
- FLOCKFILE(fp);
-
- while (cnt) {
- cnt = 0;
-
- if (lineno)
- (*lineno)++;
-
- if ((ptr = __fgetln(fp, &s)) == NULL)
- break;
-
- if (s && com) { /* Check and eliminate comments */
- for (cp = ptr; cp < ptr + s; cp++)
- if (*cp == com && !isescaped(ptr, cp, esc)) {
- s = cp - ptr;
- cnt = s == 0 && buf == NULL;
- break;
- }
- }
-
- if (s && nl) { /* Check and eliminate newlines */
- cp = &ptr[s - 1];
-
- if (*cp == nl)
- s--; /* forget newline */
- }
-
- if (s && con) { /* Check and eliminate continuations */
- cp = &ptr[s - 1];
-
- if (*cp == con && !isescaped(ptr, cp, esc)) {
- s--; /* forget escape */
- cnt = 1;
- }
- }
-
- if (s == 0 && buf != NULL)
- continue;
-
- if ((cp = realloc(buf, len + s + 1)) == NULL) {
- FUNLOCKFILE(fp);
- free(buf);
- return NULL;
- }
- buf = cp;
-
- (void) memcpy(buf + len, ptr, s);
- len += s;
- buf[len] = '\0';
- }
-
- FUNLOCKFILE(fp);
-
- if ((flags & FPARSELN_UNESCALL) != 0 && esc && buf != NULL &&
- strchr(buf, esc) != NULL) {
- ptr = cp = buf;
- while (cp[0] != '\0') {
- int skipesc;
-
- while (cp[0] != '\0' && cp[0] != esc)
- *ptr++ = *cp++;
- if (cp[0] == '\0' || cp[1] == '\0')
- break;
-
- skipesc = 0;
- if (cp[1] == com)
- skipesc += (flags & FPARSELN_UNESCCOMM);
- if (cp[1] == con)
- skipesc += (flags & FPARSELN_UNESCCONT);
- if (cp[1] == esc)
- skipesc += (flags & FPARSELN_UNESCESC);
- if (cp[1] != com && cp[1] != con && cp[1] != esc)
- skipesc = (flags & FPARSELN_UNESCREST);
-
- if (skipesc)
- cp++;
- else
- *ptr++ = *cp++;
- *ptr++ = *cp++;
- }
- *ptr = '\0';
- len = strlen(buf);
- }
-
- if (size)
- *size = len;
- return buf;
-}
-
-#ifdef TEST
-
-int main(int, char **);
-
-int
-main(int argc, char **argv)
-{
- char *ptr;
- size_t size, line;
-
- line = 0;
- while ((ptr = fparseln(stdin, &size, &line, NULL,
- FPARSELN_UNESCALL)) != NULL)
- printf("line %d (%d) |%s|\n", line, size, ptr);
- return 0;
-}
-
-/*
-
-# This is a test
-line 1
-line 2 \
-line 3 # Comment
-line 4 \# Not comment \\\\
-
-# And a comment \
-line 5 \\\
-line 6
-
-*/
-
-#endif /* TEST */
-#endif /* ! HAVE_FPARSELN */
|