1519 lines
37 KiB
C
1519 lines
37 KiB
C
/* $NetBSD: indent.c,v 1.245 2022/05/09 21:41:49 rillig Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 1985 Sun Microsystems, Inc.
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* Copyright (c) 1976 Board of Trustees of the University of Illinois.
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if 0
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static char sccsid[] = "@(#)indent.c 5.17 (Berkeley) 6/7/93";
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#endif
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#include <sys/cdefs.h>
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#if defined(__NetBSD__)
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__RCSID("$NetBSD: indent.c,v 1.245 2022/05/09 21:41:49 rillig Exp $");
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#elif defined(__FreeBSD__)
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__FBSDID("$FreeBSD: head/usr.bin/indent/indent.c 340138 2018-11-04 19:24:49Z oshogbo $");
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#endif
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#include <sys/param.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "indent.h"
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struct options opt = {
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.brace_same_line = true,
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.comment_delimiter_on_blankline = true,
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.cuddle_else = true,
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.comment_column = 33,
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.decl_indent = 16,
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.else_if = true,
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.function_brace_split = true,
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.format_col1_comments = true,
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.format_block_comments = true,
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.indent_parameters = true,
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.indent_size = 8,
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.local_decl_indent = -1,
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.lineup_to_parens = true,
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.procnames_start_line = true,
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.star_comment_cont = true,
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.tabsize = 8,
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.max_line_length = 78,
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.use_tabs = true,
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};
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struct parser_state ps;
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struct buffer token;
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struct buffer lab;
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struct buffer code;
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struct buffer com;
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bool found_err;
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bool break_comma;
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float case_ind;
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bool had_eof;
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int line_no = 1;
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bool inhibit_formatting;
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static int ifdef_level;
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static struct parser_state state_stack[5];
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FILE *input;
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FILE *output;
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struct output_control out;
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static const char *in_name = "Standard Input";
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static const char *out_name = "Standard Output";
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static const char *backup_suffix = ".BAK";
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static char bakfile[MAXPATHLEN] = "";
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static void
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buf_init(struct buffer *buf)
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{
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size_t size = 200;
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buf->buf = xmalloc(size);
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buf->l = buf->buf + size - 5 /* safety margin */;
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buf->s = buf->buf + 1; /* allow accessing buf->e[-1] */
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buf->e = buf->s;
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buf->buf[0] = ' ';
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buf->buf[1] = '\0';
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}
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static size_t
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buf_len(const struct buffer *buf)
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{
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return (size_t)(buf->e - buf->s);
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}
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void
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buf_expand(struct buffer *buf, size_t add_size)
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{
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size_t new_size = (size_t)(buf->l - buf->s) + 400 + add_size;
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size_t len = buf_len(buf);
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buf->buf = xrealloc(buf->buf, new_size);
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buf->l = buf->buf + new_size - 5;
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buf->s = buf->buf + 1;
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buf->e = buf->s + len;
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/* At this point, the buffer may not be null-terminated anymore. */
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}
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static void
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buf_reserve(struct buffer *buf, size_t n)
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{
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if (n >= (size_t)(buf->l - buf->e))
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buf_expand(buf, n);
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}
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void
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buf_add_char(struct buffer *buf, char ch)
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{
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buf_reserve(buf, 1);
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*buf->e++ = ch;
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}
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void
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buf_add_range(struct buffer *buf, const char *s, const char *e)
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{
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size_t len = (size_t)(e - s);
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buf_reserve(buf, len);
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memcpy(buf->e, s, len);
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buf->e += len;
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}
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static void
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buf_add_buf(struct buffer *buf, const struct buffer *add)
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{
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buf_add_range(buf, add->s, add->e);
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}
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static void
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buf_terminate(struct buffer *buf)
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{
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buf_reserve(buf, 1);
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*buf->e = '\0';
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}
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static void
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buf_reset(struct buffer *buf)
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{
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buf->e = buf->s;
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}
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void
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diag(int level, const char *msg, ...)
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{
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va_list ap;
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if (level != 0)
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found_err = true;
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va_start(ap, msg);
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fprintf(stderr, "%s: %s:%d: ",
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level == 0 ? "warning" : "error", in_name, line_no);
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vfprintf(stderr, msg, ap);
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fprintf(stderr, "\n");
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va_end(ap);
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}
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/*
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* Compute the indentation from starting at 'ind' and adding the text from
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* 'start' to 'end'.
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*/
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int
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ind_add(int ind, const char *start, const char *end)
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{
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for (const char *p = start; p != end; ++p) {
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if (*p == '\n' || *p == '\f')
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ind = 0;
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else if (*p == '\t')
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ind = next_tab(ind);
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else if (*p == '\b')
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--ind;
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else
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++ind;
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}
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return ind;
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}
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static void
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search_stmt_newline(bool *force_nl)
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{
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inp_comment_init_newline();
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inp_comment_add_char('\n');
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debug_inp(__func__);
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line_no++;
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/*
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* We may have inherited a force_nl == true from the previous token (like
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* a semicolon). But once we know that a newline has been scanned in this
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* loop, force_nl should be false.
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*
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* However, the force_nl == true must be preserved if newline is never
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* scanned in this loop, so this assignment cannot be done earlier.
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*/
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*force_nl = false;
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}
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static void
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search_stmt_comment(void)
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{
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inp_comment_init_comment();
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inp_comment_add_range(token.s, token.e);
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if (token.e[-1] == '/') {
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while (inp_peek() != '\n')
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inp_comment_add_char(inp_next());
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debug_inp("search_stmt_comment: end of C99 comment");
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} else {
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while (!inp_comment_complete_block())
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inp_comment_add_char(inp_next());
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debug_inp("search_stmt_comment: end of block comment");
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}
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}
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static bool
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search_stmt_lbrace(void)
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{
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/*
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* Put KNF-style lbraces before the buffered up tokens and jump out of
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* this loop in order to avoid copying the token again.
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*/
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if (inp_comment_seen() && opt.brace_same_line) {
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inp_comment_insert_lbrace();
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/*
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* Originally the lbrace may have been alone on its own line, but it
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* will be moved into "the else's line", so if there was a newline
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* resulting from the "{" before, it must be scanned now and ignored.
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*/
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while (ch_isspace(inp_peek())) {
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inp_skip();
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if (inp_peek() == '\n')
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break;
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}
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debug_inp(__func__);
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return true;
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}
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return false;
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}
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static bool
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search_stmt_other(lexer_symbol lsym, bool *force_nl,
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bool comment_buffered, bool last_else)
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{
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bool remove_newlines;
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remove_newlines =
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/* "} else" */
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(lsym == lsym_else && code.e != code.s && code.e[-1] == '}')
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/* "else if" */
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|| (lsym == lsym_if && last_else && opt.else_if);
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if (remove_newlines)
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*force_nl = false;
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if (!inp_comment_seen()) {
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ps.search_stmt = false;
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return false;
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}
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debug_inp(__func__);
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inp_comment_rtrim_blank();
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if (opt.swallow_optional_blanklines ||
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(!comment_buffered && remove_newlines)) {
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*force_nl = !remove_newlines;
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inp_comment_rtrim_newline();
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}
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if (*force_nl) { /* if we should insert a newline here, put it
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* into the buffer */
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*force_nl = false;
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--line_no; /* this will be re-increased when the newline
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* is read from the buffer */
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inp_comment_add_char('\n');
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inp_comment_add_char(' ');
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if (opt.verbose) /* warn if the line was not already broken */
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diag(0, "Line broken");
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}
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inp_comment_add_range(token.s, token.e);
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debug_inp("search_stmt_other end");
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return true;
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}
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static void
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search_stmt_lookahead(lexer_symbol *lsym)
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{
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if (*lsym == lsym_eof)
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return;
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/*
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* The only intended purpose of calling lexi() below is to categorize the
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* next token in order to decide whether to continue buffering forthcoming
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* tokens. Once the buffering is over, lexi() will be called again
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* elsewhere on all of the tokens - this time for normal processing.
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*
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* Calling it for this purpose is a bug, because lexi() also changes the
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* parser state and discards leading whitespace, which is needed mostly
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* for comment-related considerations.
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*
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* Work around the former problem by giving lexi() a copy of the current
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* parser state and discard it if the call turned out to be just a
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* lookahead.
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*
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* Work around the latter problem by copying all whitespace characters
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* into the buffer so that the later lexi() call will read them.
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*/
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if (inp_comment_seen()) {
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while (ch_isblank(inp_peek()))
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inp_comment_add_char(inp_next());
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debug_inp(__func__);
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}
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struct parser_state backup_ps = ps;
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debug_println("backed up parser state");
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*lsym = lexi();
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if (*lsym == lsym_newline || *lsym == lsym_form_feed ||
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*lsym == lsym_comment || ps.search_stmt) {
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ps = backup_ps;
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debug_println("restored parser state");
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}
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}
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/*
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* Move newlines and comments following an 'if (expr)', 'while (expr)',
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* 'else', etc. up to the start of the following statement to a buffer. This
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* allows proper handling of both kinds of brace placement (-br, -bl) and
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* "cuddling else" (-ce).
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*/
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static void
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search_stmt(lexer_symbol *lsym, bool *force_nl, bool *last_else)
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{
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bool comment_buffered = false;
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while (ps.search_stmt) {
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switch (*lsym) {
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case lsym_newline:
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search_stmt_newline(force_nl);
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break;
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case lsym_form_feed:
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/* XXX: Is simply removed from the source code. */
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break;
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case lsym_comment:
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search_stmt_comment();
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comment_buffered = true;
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break;
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case lsym_lbrace:
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if (search_stmt_lbrace())
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goto switch_buffer;
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/* FALLTHROUGH */
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default:
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if (!search_stmt_other(*lsym, force_nl, comment_buffered,
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*last_else))
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return;
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switch_buffer:
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ps.search_stmt = false;
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inp_comment_add_char(' '); /* add trailing blank, just in case */
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inp_from_comment();
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}
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search_stmt_lookahead(lsym);
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}
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*last_else = false;
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}
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static void
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main_init_globals(void)
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{
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inp_init();
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buf_init(&token);
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buf_init(&lab);
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buf_init(&code);
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buf_init(&com);
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ps.s_sym[0] = psym_stmt_list;
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ps.prev_token = lsym_semicolon;
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ps.next_col_1 = true;
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const char *suffix = getenv("SIMPLE_BACKUP_SUFFIX");
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if (suffix != NULL)
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backup_suffix = suffix;
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}
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/*
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* Copy the input file to the backup file, then make the backup file the input
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* and the original input file the output.
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*/
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static void
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bakcopy(void)
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{
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ssize_t n;
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int bak_fd;
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char buff[8 * 1024];
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const char *last_slash = strrchr(in_name, '/');
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snprintf(bakfile, sizeof(bakfile), "%s%s",
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last_slash != NULL ? last_slash + 1 : in_name, backup_suffix);
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/* copy in_name to backup file */
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bak_fd = creat(bakfile, 0600);
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if (bak_fd < 0)
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err(1, "%s", bakfile);
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while ((n = read(fileno(input), buff, sizeof(buff))) > 0)
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if (write(bak_fd, buff, (size_t)n) != n)
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err(1, "%s", bakfile);
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if (n < 0)
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err(1, "%s", in_name);
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close(bak_fd);
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(void)fclose(input);
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/* re-open backup file as the input file */
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input = fopen(bakfile, "r");
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if (input == NULL)
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err(1, "%s", bakfile);
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/* now the original input file will be the output */
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output = fopen(in_name, "w");
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if (output == NULL) {
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unlink(bakfile);
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err(1, "%s", in_name);
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}
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}
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static void
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main_load_profiles(int argc, char **argv)
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{
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const char *profile_name = NULL;
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for (int i = 1; i < argc; ++i) {
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const char *arg = argv[i];
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if (strcmp(arg, "-npro") == 0)
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return;
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if (arg[0] == '-' && arg[1] == 'P' && arg[2] != '\0')
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profile_name = arg + 2;
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}
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load_profiles(profile_name);
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}
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static void
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main_parse_command_line(int argc, char **argv)
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{
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for (int i = 1; i < argc; ++i) {
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const char *arg = argv[i];
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if (arg[0] == '-') {
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set_option(arg, "Command line");
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} else if (input == NULL) {
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in_name = arg;
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if ((input = fopen(in_name, "r")) == NULL)
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err(1, "%s", in_name);
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} else if (output == NULL) {
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out_name = arg;
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if (strcmp(in_name, out_name) == 0)
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errx(1, "input and output files must be different");
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if ((output = fopen(out_name, "w")) == NULL)
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err(1, "%s", out_name);
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} else
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errx(1, "too many arguments: %s", arg);
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}
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if (input == NULL) {
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input = stdin;
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output = stdout;
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} else if (output == NULL) {
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out_name = in_name;
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bakcopy();
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}
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if (opt.comment_column <= 1)
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opt.comment_column = 2; /* don't put normal comments before column 2 */
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if (opt.block_comment_max_line_length <= 0)
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opt.block_comment_max_line_length = opt.max_line_length;
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if (opt.local_decl_indent < 0) /* if not specified by user, set this */
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opt.local_decl_indent = opt.decl_indent;
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if (opt.decl_comment_column <= 0) /* if not specified by user, set this */
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opt.decl_comment_column = opt.ljust_decl
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? (opt.comment_column <= 10 ? 2 : opt.comment_column - 8)
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: opt.comment_column;
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if (opt.continuation_indent == 0)
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opt.continuation_indent = opt.indent_size;
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}
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static void
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main_prepare_parsing(void)
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{
|
|
inp_read_line();
|
|
|
|
int ind = 0;
|
|
for (const char *p = inp_p();; p++) {
|
|
if (*p == ' ')
|
|
ind++;
|
|
else if (*p == '\t')
|
|
ind = next_tab(ind);
|
|
else
|
|
break;
|
|
}
|
|
|
|
if (ind >= opt.indent_size)
|
|
ps.ind_level = ps.ind_level_follow = ind / opt.indent_size;
|
|
}
|
|
|
|
static void
|
|
code_add_decl_indent(int decl_ind, bool tabs_to_var)
|
|
{
|
|
int base_ind = ps.ind_level * opt.indent_size;
|
|
int ind = base_ind + (int)buf_len(&code);
|
|
int target_ind = base_ind + decl_ind;
|
|
char *orig_code_e = code.e;
|
|
|
|
if (tabs_to_var)
|
|
for (int next; (next = next_tab(ind)) <= target_ind; ind = next)
|
|
buf_add_char(&code, '\t');
|
|
|
|
for (; ind < target_ind; ind++)
|
|
buf_add_char(&code, ' ');
|
|
|
|
if (code.e == orig_code_e && ps.want_blank) {
|
|
buf_add_char(&code, ' ');
|
|
ps.want_blank = false;
|
|
}
|
|
}
|
|
|
|
static void __attribute__((__noreturn__))
|
|
process_eof(void)
|
|
{
|
|
if (lab.s != lab.e || code.s != code.e || com.s != com.e)
|
|
output_line();
|
|
|
|
if (ps.tos > 1) /* check for balanced braces */
|
|
diag(1, "Stuff missing from end of file");
|
|
|
|
if (opt.verbose) {
|
|
printf("There were %d output lines and %d comments\n",
|
|
ps.stats.lines, ps.stats.comments);
|
|
printf("(Lines with comments)/(Lines with code): %6.3f\n",
|
|
(1.0 * ps.stats.comment_lines) / ps.stats.code_lines);
|
|
}
|
|
|
|
fflush(output);
|
|
exit(found_err ? EXIT_FAILURE : EXIT_SUCCESS);
|
|
}
|
|
|
|
static void
|
|
maybe_break_line(lexer_symbol lsym, bool *force_nl)
|
|
{
|
|
if (!*force_nl)
|
|
return;
|
|
if (lsym == lsym_semicolon)
|
|
return;
|
|
if (lsym == lsym_lbrace && opt.brace_same_line)
|
|
return;
|
|
|
|
if (opt.verbose)
|
|
diag(0, "Line broken");
|
|
output_line();
|
|
ps.want_blank = false;
|
|
*force_nl = false;
|
|
}
|
|
|
|
static void
|
|
move_com_to_code(void)
|
|
{
|
|
buf_add_char(&code, ' ');
|
|
buf_add_buf(&code, &com);
|
|
buf_add_char(&code, ' ');
|
|
buf_terminate(&code);
|
|
buf_reset(&com);
|
|
ps.want_blank = false;
|
|
}
|
|
|
|
static void
|
|
process_form_feed(void)
|
|
{
|
|
output_line_ff();
|
|
ps.want_blank = false;
|
|
}
|
|
|
|
static void
|
|
process_newline(void)
|
|
{
|
|
if (ps.prev_token == lsym_comma && ps.nparen == 0 && !ps.block_init &&
|
|
!opt.break_after_comma && break_comma &&
|
|
com.s == com.e)
|
|
goto stay_in_line;
|
|
|
|
output_line();
|
|
ps.want_blank = false;
|
|
|
|
stay_in_line:
|
|
++line_no;
|
|
}
|
|
|
|
static bool
|
|
want_blank_before_lparen(void)
|
|
{
|
|
if (!ps.want_blank)
|
|
return false;
|
|
if (opt.proc_calls_space)
|
|
return true;
|
|
if (ps.prev_token == lsym_rparen_or_rbracket)
|
|
return false;
|
|
if (ps.prev_token == lsym_offsetof)
|
|
return false;
|
|
if (ps.prev_token == lsym_sizeof)
|
|
return opt.blank_after_sizeof;
|
|
if (ps.prev_token == lsym_word || ps.prev_token == lsym_funcname)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
process_lparen_or_lbracket(int decl_ind, bool tabs_to_var, bool spaced_expr)
|
|
{
|
|
if (++ps.nparen == array_length(ps.paren)) {
|
|
diag(0, "Reached internal limit of %zu unclosed parentheses",
|
|
array_length(ps.paren));
|
|
ps.nparen--;
|
|
}
|
|
|
|
if (token.s[0] == '(' && ps.in_decl
|
|
&& !ps.block_init && !ps.decl_indent_done &&
|
|
!ps.is_function_definition && ps.line_start_nparen == 0) {
|
|
/* function pointer declarations */
|
|
code_add_decl_indent(decl_ind, tabs_to_var);
|
|
ps.decl_indent_done = true;
|
|
} else if (want_blank_before_lparen())
|
|
*code.e++ = ' ';
|
|
ps.want_blank = false;
|
|
*code.e++ = token.s[0];
|
|
|
|
ps.paren[ps.nparen - 1].indent = (short)ind_add(0, code.s, code.e);
|
|
debug_println("paren_indents[%d] is now %d",
|
|
ps.nparen - 1, ps.paren[ps.nparen - 1].indent);
|
|
|
|
if (spaced_expr && ps.nparen == 1 && opt.extra_expr_indent
|
|
&& ps.paren[0].indent < 2 * opt.indent_size) {
|
|
ps.paren[0].indent = (short)(2 * opt.indent_size);
|
|
debug_println("paren_indents[0] is now %d", ps.paren[0].indent);
|
|
}
|
|
|
|
if (ps.init_or_struct && *token.s == '(' && ps.tos <= 2) {
|
|
/*
|
|
* this is a kluge to make sure that declarations will be aligned
|
|
* right if proc decl has an explicit type on it, i.e. "int a(x) {..."
|
|
*/
|
|
parse(psym_semicolon); /* I said this was a kluge... */
|
|
ps.init_or_struct = false;
|
|
}
|
|
|
|
/* parenthesized type following sizeof or offsetof is not a cast */
|
|
if (ps.prev_token == lsym_offsetof || ps.prev_token == lsym_sizeof)
|
|
ps.paren[ps.nparen - 1].no_cast = true;
|
|
}
|
|
|
|
static void
|
|
process_rparen_or_rbracket(bool *spaced_expr, bool *force_nl, stmt_head hd)
|
|
{
|
|
if (ps.paren[ps.nparen - 1].maybe_cast &&
|
|
!ps.paren[ps.nparen - 1].no_cast) {
|
|
ps.next_unary = true;
|
|
ps.paren[ps.nparen - 1].maybe_cast = false;
|
|
ps.want_blank = opt.space_after_cast;
|
|
} else
|
|
ps.want_blank = true;
|
|
ps.paren[ps.nparen - 1].no_cast = false;
|
|
|
|
if (ps.nparen > 0)
|
|
ps.nparen--;
|
|
else
|
|
diag(0, "Extra '%c'", *token.s);
|
|
|
|
if (code.e == code.s) /* if the paren starts the line */
|
|
ps.line_start_nparen = ps.nparen; /* then indent it */
|
|
|
|
*code.e++ = token.s[0];
|
|
|
|
if (*spaced_expr && ps.nparen == 0) { /* check for end of 'if
|
|
* (...)', or some such */
|
|
*spaced_expr = false;
|
|
*force_nl = true; /* must force newline after if */
|
|
ps.next_unary = true;
|
|
ps.in_stmt_or_decl = false; /* don't use stmt continuation
|
|
* indentation */
|
|
|
|
parse_stmt_head(hd);
|
|
}
|
|
|
|
/*
|
|
* This should ensure that constructs such as main(){...} and int[]{...}
|
|
* have their braces put in the right place.
|
|
*/
|
|
ps.search_stmt = opt.brace_same_line;
|
|
}
|
|
|
|
static bool
|
|
want_blank_before_unary_op(void)
|
|
{
|
|
if (ps.want_blank)
|
|
return true;
|
|
if (token.s[0] == '+' || token.s[0] == '-')
|
|
return code.e > code.s && code.e[-1] == token.s[0];
|
|
return false;
|
|
}
|
|
|
|
static void
|
|
process_unary_op(int decl_ind, bool tabs_to_var)
|
|
{
|
|
if (!ps.decl_indent_done && ps.in_decl && !ps.block_init &&
|
|
!ps.is_function_definition && ps.line_start_nparen == 0) {
|
|
/* pointer declarations */
|
|
code_add_decl_indent(decl_ind - (int)buf_len(&token), tabs_to_var);
|
|
ps.decl_indent_done = true;
|
|
} else if (want_blank_before_unary_op())
|
|
*code.e++ = ' ';
|
|
|
|
buf_add_buf(&code, &token);
|
|
ps.want_blank = false;
|
|
}
|
|
|
|
static void
|
|
process_binary_op(void)
|
|
{
|
|
if (buf_len(&code) > 0)
|
|
buf_add_char(&code, ' ');
|
|
buf_add_buf(&code, &token);
|
|
ps.want_blank = true;
|
|
}
|
|
|
|
static void
|
|
process_postfix_op(void)
|
|
{
|
|
*code.e++ = token.s[0];
|
|
*code.e++ = token.s[1];
|
|
ps.want_blank = true;
|
|
}
|
|
|
|
static void
|
|
process_question(int *quest_level)
|
|
{
|
|
(*quest_level)++;
|
|
if (ps.want_blank)
|
|
*code.e++ = ' ';
|
|
*code.e++ = '?';
|
|
ps.want_blank = true;
|
|
}
|
|
|
|
static void
|
|
process_colon(int *quest_level, bool *force_nl, bool *seen_case)
|
|
{
|
|
if (*quest_level > 0) { /* part of a '?:' operator */
|
|
--*quest_level;
|
|
if (ps.want_blank)
|
|
*code.e++ = ' ';
|
|
*code.e++ = ':';
|
|
ps.want_blank = true;
|
|
return;
|
|
}
|
|
|
|
if (ps.init_or_struct) { /* bit-field */
|
|
*code.e++ = ':';
|
|
ps.want_blank = false;
|
|
return;
|
|
}
|
|
|
|
buf_add_buf(&lab, &code); /* 'case' or 'default' or named label */
|
|
buf_add_char(&lab, ':');
|
|
buf_terminate(&lab);
|
|
buf_reset(&code);
|
|
|
|
ps.in_stmt_or_decl = false;
|
|
ps.is_case_label = *seen_case;
|
|
*force_nl = *seen_case;
|
|
*seen_case = false;
|
|
ps.want_blank = false;
|
|
}
|
|
|
|
static void
|
|
process_semicolon(bool *seen_case, int *quest_level, int decl_ind,
|
|
bool tabs_to_var, bool *spaced_expr, stmt_head hd, bool *force_nl)
|
|
{
|
|
if (ps.decl_level == 0)
|
|
ps.init_or_struct = false;
|
|
*seen_case = false; /* these will only need resetting in an error */
|
|
*quest_level = 0;
|
|
if (ps.prev_token == lsym_rparen_or_rbracket)
|
|
ps.in_func_def_params = false;
|
|
ps.block_init = false;
|
|
ps.block_init_level = 0;
|
|
ps.just_saw_decl--;
|
|
|
|
if (ps.in_decl && code.s == code.e && !ps.block_init &&
|
|
!ps.decl_indent_done && ps.line_start_nparen == 0) {
|
|
/* indent stray semicolons in declarations */
|
|
code_add_decl_indent(decl_ind - 1, tabs_to_var);
|
|
ps.decl_indent_done = true;
|
|
}
|
|
|
|
ps.in_decl = ps.decl_level > 0; /* if we were in a first level
|
|
* structure declaration before, we
|
|
* aren't anymore */
|
|
|
|
if ((!*spaced_expr || hd != hd_for) && ps.nparen > 0) {
|
|
|
|
/*
|
|
* There were unbalanced parentheses in the statement. It is a bit
|
|
* complicated, because the semicolon might be in a for statement.
|
|
*/
|
|
diag(1, "Unbalanced parentheses");
|
|
ps.nparen = 0;
|
|
if (*spaced_expr) { /* 'if', 'while', etc. */
|
|
*spaced_expr = false;
|
|
parse_stmt_head(hd);
|
|
}
|
|
}
|
|
*code.e++ = ';';
|
|
ps.want_blank = true;
|
|
ps.in_stmt_or_decl = ps.nparen > 0;
|
|
|
|
if (!*spaced_expr) { /* if not if for (;;) */
|
|
parse(psym_semicolon); /* let parser know about end of stmt */
|
|
*force_nl = true; /* force newline after an end of stmt */
|
|
}
|
|
}
|
|
|
|
static void
|
|
process_lbrace(bool *force_nl, bool *spaced_expr, stmt_head hd,
|
|
int *di_stack, int di_stack_cap, int *decl_ind)
|
|
{
|
|
ps.in_stmt_or_decl = false; /* don't indent the {} */
|
|
|
|
if (!ps.block_init)
|
|
*force_nl = true; /* force other stuff on same line as '{' onto
|
|
* new line */
|
|
else if (ps.block_init_level <= 0)
|
|
ps.block_init_level = 1;
|
|
else
|
|
ps.block_init_level++;
|
|
|
|
if (code.s != code.e && !ps.block_init) {
|
|
if (!opt.brace_same_line) {
|
|
output_line();
|
|
ps.want_blank = false;
|
|
} else if (ps.in_func_def_params && !ps.init_or_struct) {
|
|
ps.ind_level_follow = 0;
|
|
if (opt.function_brace_split) { /* dump the line prior to the
|
|
* brace ... */
|
|
output_line();
|
|
ps.want_blank = false;
|
|
} else /* add a space between the decl and brace */
|
|
ps.want_blank = true;
|
|
}
|
|
}
|
|
|
|
if (ps.in_func_def_params)
|
|
out.blank_line_before = false;
|
|
|
|
if (ps.nparen > 0) {
|
|
diag(1, "Unbalanced parentheses");
|
|
ps.nparen = 0;
|
|
if (*spaced_expr) { /* check for unclosed 'if', 'for', etc. */
|
|
*spaced_expr = false;
|
|
parse_stmt_head(hd);
|
|
ps.ind_level = ps.ind_level_follow;
|
|
}
|
|
}
|
|
|
|
if (code.s == code.e)
|
|
ps.in_stmt_cont = false; /* don't indent the '{' itself */
|
|
if (ps.in_decl && ps.init_or_struct) {
|
|
di_stack[ps.decl_level] = *decl_ind;
|
|
if (++ps.decl_level == di_stack_cap) {
|
|
diag(0, "Reached internal limit of %d struct levels",
|
|
di_stack_cap);
|
|
ps.decl_level--;
|
|
}
|
|
} else {
|
|
ps.decl_on_line = false; /* we can't be in the middle of a
|
|
* declaration, so don't do special
|
|
* indentation of comments */
|
|
if (opt.blanklines_after_decl_at_top && ps.in_func_def_params)
|
|
out.blank_line_after = true;
|
|
ps.in_func_def_params = false;
|
|
ps.in_decl = false;
|
|
}
|
|
|
|
*decl_ind = 0;
|
|
parse(psym_lbrace);
|
|
if (ps.want_blank)
|
|
*code.e++ = ' ';
|
|
ps.want_blank = false;
|
|
*code.e++ = '{';
|
|
ps.just_saw_decl = 0;
|
|
}
|
|
|
|
static void
|
|
process_rbrace(bool *spaced_expr, int *decl_ind, const int *di_stack)
|
|
{
|
|
if (ps.s_sym[ps.tos] == psym_decl && !ps.block_init) {
|
|
/* semicolons can be omitted in declarations */
|
|
parse(psym_semicolon);
|
|
}
|
|
|
|
if (ps.nparen > 0) { /* check for unclosed if, for, else. */
|
|
diag(1, "Unbalanced parentheses");
|
|
ps.nparen = 0;
|
|
*spaced_expr = false;
|
|
}
|
|
|
|
ps.just_saw_decl = 0;
|
|
ps.block_init_level--;
|
|
|
|
if (code.s != code.e && !ps.block_init) { /* '}' must be first on line */
|
|
if (opt.verbose)
|
|
diag(0, "Line broken");
|
|
output_line();
|
|
}
|
|
|
|
*code.e++ = '}';
|
|
ps.want_blank = true;
|
|
ps.in_stmt_or_decl = false;
|
|
ps.in_stmt_cont = false;
|
|
|
|
if (ps.decl_level > 0) { /* multi-level structure declaration */
|
|
*decl_ind = di_stack[--ps.decl_level];
|
|
if (ps.decl_level == 0 && !ps.in_func_def_params) {
|
|
ps.just_saw_decl = 2;
|
|
*decl_ind = ps.ind_level == 0
|
|
? opt.decl_indent : opt.local_decl_indent;
|
|
}
|
|
ps.in_decl = true;
|
|
}
|
|
|
|
out.blank_line_before = false;
|
|
parse(psym_rbrace);
|
|
ps.search_stmt = opt.cuddle_else
|
|
&& ps.s_sym[ps.tos] == psym_if_expr_stmt
|
|
&& ps.s_ind_level[ps.tos] >= ps.ind_level;
|
|
|
|
if (ps.tos <= 1 && opt.blanklines_after_procs && ps.decl_level <= 0)
|
|
out.blank_line_after = true;
|
|
}
|
|
|
|
static void
|
|
process_do(bool *force_nl, bool *last_else)
|
|
{
|
|
ps.in_stmt_or_decl = false;
|
|
|
|
if (code.e != code.s) { /* make sure this starts a line */
|
|
if (opt.verbose)
|
|
diag(0, "Line broken");
|
|
output_line();
|
|
ps.want_blank = false;
|
|
}
|
|
|
|
*force_nl = true; /* following stuff must go onto new line */
|
|
*last_else = false;
|
|
parse(psym_do);
|
|
}
|
|
|
|
static void
|
|
process_else(bool *force_nl, bool *last_else)
|
|
{
|
|
ps.in_stmt_or_decl = false;
|
|
|
|
if (code.e > code.s && !(opt.cuddle_else && code.e[-1] == '}')) {
|
|
if (opt.verbose)
|
|
diag(0, "Line broken");
|
|
output_line(); /* make sure this starts a line */
|
|
ps.want_blank = false;
|
|
}
|
|
|
|
*force_nl = true; /* following stuff must go onto new line */
|
|
*last_else = true;
|
|
parse(psym_else);
|
|
}
|
|
|
|
static void
|
|
process_type(int *decl_ind, bool *tabs_to_var)
|
|
{
|
|
parse(psym_decl); /* let the parser worry about indentation */
|
|
|
|
if (ps.prev_token == lsym_rparen_or_rbracket && ps.tos <= 1) {
|
|
if (code.s != code.e) {
|
|
output_line();
|
|
ps.want_blank = false;
|
|
}
|
|
}
|
|
|
|
if (ps.in_func_def_params && opt.indent_parameters &&
|
|
ps.decl_level == 0) {
|
|
ps.ind_level = ps.ind_level_follow = 1;
|
|
ps.in_stmt_cont = false;
|
|
}
|
|
|
|
ps.init_or_struct = /* maybe */ true;
|
|
ps.in_decl = ps.decl_on_line = ps.prev_token != lsym_typedef;
|
|
if (ps.decl_level <= 0)
|
|
ps.just_saw_decl = 2;
|
|
|
|
out.blank_line_before = false;
|
|
|
|
int len = (int)buf_len(&token) + 1;
|
|
int ind = ps.ind_level == 0 || ps.decl_level > 0
|
|
? opt.decl_indent /* global variable or local member */
|
|
: opt.local_decl_indent; /* local variable */
|
|
*decl_ind = ind > 0 ? ind : len;
|
|
*tabs_to_var = opt.use_tabs && ind > 0;
|
|
}
|
|
|
|
static void
|
|
process_ident(lexer_symbol lsym, int decl_ind, bool tabs_to_var,
|
|
bool *spaced_expr, bool *force_nl, stmt_head hd)
|
|
{
|
|
if (ps.in_decl) {
|
|
if (lsym == lsym_funcname) {
|
|
ps.in_decl = false;
|
|
if (opt.procnames_start_line && code.s != code.e) {
|
|
*code.e = '\0';
|
|
output_line();
|
|
} else if (ps.want_blank) {
|
|
*code.e++ = ' ';
|
|
}
|
|
ps.want_blank = false;
|
|
|
|
} else if (!ps.block_init && !ps.decl_indent_done &&
|
|
ps.line_start_nparen == 0) {
|
|
code_add_decl_indent(decl_ind, tabs_to_var);
|
|
ps.decl_indent_done = true;
|
|
ps.want_blank = false;
|
|
}
|
|
|
|
} else if (*spaced_expr && ps.nparen == 0) {
|
|
*spaced_expr = false;
|
|
*force_nl = true;
|
|
ps.next_unary = true;
|
|
ps.in_stmt_or_decl = false;
|
|
parse_stmt_head(hd);
|
|
}
|
|
}
|
|
|
|
static void
|
|
copy_token(void)
|
|
{
|
|
if (ps.want_blank)
|
|
buf_add_char(&code, ' ');
|
|
buf_add_buf(&code, &token);
|
|
}
|
|
|
|
static void
|
|
process_period(void)
|
|
{
|
|
if (code.e > code.s && code.e[-1] == ',')
|
|
*code.e++ = ' ';
|
|
*code.e++ = '.';
|
|
ps.want_blank = false;
|
|
}
|
|
|
|
static void
|
|
process_comma(int decl_ind, bool tabs_to_var, bool *force_nl)
|
|
{
|
|
ps.want_blank = code.s != code.e; /* only put blank after comma if comma
|
|
* does not start the line */
|
|
|
|
if (ps.in_decl && !ps.is_function_definition && !ps.block_init &&
|
|
!ps.decl_indent_done && ps.line_start_nparen == 0) {
|
|
/* indent leading commas and not the actual identifiers */
|
|
code_add_decl_indent(decl_ind - 1, tabs_to_var);
|
|
ps.decl_indent_done = true;
|
|
}
|
|
|
|
*code.e++ = ',';
|
|
|
|
if (ps.nparen == 0) {
|
|
if (ps.block_init_level <= 0)
|
|
ps.block_init = false;
|
|
int varname_len = 8; /* rough estimate for the length of a typical
|
|
* variable name */
|
|
if (break_comma && (opt.break_after_comma ||
|
|
ind_add(compute_code_indent(), code.s, code.e)
|
|
>= opt.max_line_length - varname_len))
|
|
*force_nl = true;
|
|
}
|
|
}
|
|
|
|
/* move the whole line to the 'label' buffer */
|
|
static void
|
|
read_preprocessing_line(void)
|
|
{
|
|
enum {
|
|
PLAIN, STR, CHR, COMM
|
|
} state;
|
|
|
|
buf_add_char(&lab, '#');
|
|
|
|
state = PLAIN;
|
|
int com_start = 0, com_end = 0;
|
|
|
|
while (ch_isblank(inp_peek()))
|
|
inp_skip();
|
|
|
|
while (inp_peek() != '\n' || (state == COMM && !had_eof)) {
|
|
buf_reserve(&lab, 2);
|
|
*lab.e++ = inp_next();
|
|
switch (lab.e[-1]) {
|
|
case '\\':
|
|
if (state != COMM)
|
|
*lab.e++ = inp_next();
|
|
break;
|
|
case '/':
|
|
if (inp_peek() == '*' && state == PLAIN) {
|
|
state = COMM;
|
|
*lab.e++ = inp_next();
|
|
com_start = (int)buf_len(&lab) - 2;
|
|
}
|
|
break;
|
|
case '"':
|
|
if (state == STR)
|
|
state = PLAIN;
|
|
else if (state == PLAIN)
|
|
state = STR;
|
|
break;
|
|
case '\'':
|
|
if (state == CHR)
|
|
state = PLAIN;
|
|
else if (state == PLAIN)
|
|
state = CHR;
|
|
break;
|
|
case '*':
|
|
if (inp_peek() == '/' && state == COMM) {
|
|
state = PLAIN;
|
|
*lab.e++ = inp_next();
|
|
com_end = (int)buf_len(&lab);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
while (lab.e > lab.s && ch_isblank(lab.e[-1]))
|
|
lab.e--;
|
|
if (lab.e - lab.s == com_end && !inp_comment_seen()) {
|
|
/* comment on preprocessor line */
|
|
inp_comment_init_preproc();
|
|
inp_comment_add_range(lab.s + com_start, lab.s + com_end);
|
|
lab.e = lab.s + com_start;
|
|
while (lab.e > lab.s && ch_isblank(lab.e[-1]))
|
|
lab.e--;
|
|
inp_comment_add_char(' '); /* add trailing blank, just in case */
|
|
inp_from_comment();
|
|
}
|
|
buf_terminate(&lab);
|
|
}
|
|
|
|
static void
|
|
process_preprocessing(void)
|
|
{
|
|
if (com.s != com.e || lab.s != lab.e || code.s != code.e)
|
|
output_line();
|
|
|
|
read_preprocessing_line();
|
|
|
|
ps.is_case_label = false;
|
|
|
|
if (strncmp(lab.s, "#if", 3) == 0) { /* also ifdef, ifndef */
|
|
if ((size_t)ifdef_level < array_length(state_stack))
|
|
state_stack[ifdef_level++] = ps;
|
|
else
|
|
diag(1, "#if stack overflow");
|
|
|
|
} else if (strncmp(lab.s, "#el", 3) == 0) { /* else, elif */
|
|
if (ifdef_level <= 0)
|
|
diag(1, lab.s[3] == 'i' ? "Unmatched #elif" : "Unmatched #else");
|
|
else
|
|
ps = state_stack[ifdef_level - 1];
|
|
|
|
} else if (strncmp(lab.s, "#endif", 6) == 0) {
|
|
if (ifdef_level <= 0)
|
|
diag(1, "Unmatched #endif");
|
|
else
|
|
ifdef_level--;
|
|
|
|
} else {
|
|
if (strncmp(lab.s + 1, "pragma", 6) != 0 &&
|
|
strncmp(lab.s + 1, "error", 5) != 0 &&
|
|
strncmp(lab.s + 1, "line", 4) != 0 &&
|
|
strncmp(lab.s + 1, "undef", 5) != 0 &&
|
|
strncmp(lab.s + 1, "define", 6) != 0 &&
|
|
strncmp(lab.s + 1, "include", 7) != 0) {
|
|
diag(1, "Unrecognized cpp directive");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (opt.blanklines_around_conditional_compilation) {
|
|
out.blank_line_after = true;
|
|
out.blank_lines_to_output = 0;
|
|
} else {
|
|
out.blank_line_after = false;
|
|
out.blank_line_before = false;
|
|
}
|
|
|
|
/*
|
|
* subsequent processing of the newline character will cause the line to
|
|
* be printed
|
|
*/
|
|
}
|
|
|
|
static void __attribute__((__noreturn__))
|
|
main_loop(void)
|
|
{
|
|
bool force_nl = false; /* when true, code must be broken */
|
|
bool last_else = false; /* true iff last keyword was an else */
|
|
int decl_ind = 0; /* current indentation for declarations */
|
|
int di_stack[20]; /* a stack of structure indentation levels */
|
|
bool tabs_to_var = false; /* true if using tabs to indent to var name */
|
|
bool spaced_expr = false; /* whether we are in the expression of
|
|
* if(...), while(...), etc. */
|
|
stmt_head hd = hd_0; /* the type of statement for 'if (...)', 'for
|
|
* (...)', etc */
|
|
int quest_level = 0; /* when this is positive, we have seen a '?'
|
|
* without the matching ':' in a '?:'
|
|
* expression */
|
|
bool seen_case = false; /* set to true when we see a 'case', so we
|
|
* know what to do with the following colon */
|
|
|
|
di_stack[ps.decl_level = 0] = 0;
|
|
|
|
for (;;) { /* loop until we reach eof */
|
|
lexer_symbol lsym = lexi();
|
|
|
|
search_stmt(&lsym, &force_nl, &last_else);
|
|
|
|
if (lsym == lsym_eof) {
|
|
process_eof();
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
if (lsym == lsym_newline || lsym == lsym_form_feed ||
|
|
lsym == lsym_preprocessing)
|
|
force_nl = false;
|
|
else if (lsym != lsym_comment) {
|
|
maybe_break_line(lsym, &force_nl);
|
|
ps.in_stmt_or_decl = true; /* add an extra level of indentation;
|
|
* turned off again by a ';' or '}' */
|
|
if (com.s != com.e)
|
|
move_com_to_code();
|
|
}
|
|
|
|
buf_reserve(&code, 3); /* space for 2 characters plus '\0' */
|
|
|
|
switch (lsym) {
|
|
|
|
case lsym_form_feed:
|
|
process_form_feed();
|
|
break;
|
|
|
|
case lsym_newline:
|
|
process_newline();
|
|
break;
|
|
|
|
case lsym_lparen_or_lbracket:
|
|
process_lparen_or_lbracket(decl_ind, tabs_to_var, spaced_expr);
|
|
break;
|
|
|
|
case lsym_rparen_or_rbracket:
|
|
process_rparen_or_rbracket(&spaced_expr, &force_nl, hd);
|
|
break;
|
|
|
|
case lsym_unary_op:
|
|
process_unary_op(decl_ind, tabs_to_var);
|
|
break;
|
|
|
|
case lsym_binary_op:
|
|
process_binary_op();
|
|
break;
|
|
|
|
case lsym_postfix_op:
|
|
process_postfix_op();
|
|
break;
|
|
|
|
case lsym_question:
|
|
process_question(&quest_level);
|
|
break;
|
|
|
|
case lsym_case_label:
|
|
seen_case = true;
|
|
goto copy_token;
|
|
|
|
case lsym_colon:
|
|
process_colon(&quest_level, &force_nl, &seen_case);
|
|
break;
|
|
|
|
case lsym_semicolon:
|
|
process_semicolon(&seen_case, &quest_level, decl_ind, tabs_to_var,
|
|
&spaced_expr, hd, &force_nl);
|
|
break;
|
|
|
|
case lsym_lbrace:
|
|
process_lbrace(&force_nl, &spaced_expr, hd, di_stack,
|
|
(int)array_length(di_stack), &decl_ind);
|
|
break;
|
|
|
|
case lsym_rbrace:
|
|
process_rbrace(&spaced_expr, &decl_ind, di_stack);
|
|
break;
|
|
|
|
case lsym_switch:
|
|
spaced_expr = true; /* the interesting stuff is done after the
|
|
* expressions are scanned */
|
|
hd = hd_switch; /* remember the type of header for later use
|
|
* by the parser */
|
|
goto copy_token;
|
|
|
|
case lsym_for:
|
|
spaced_expr = true;
|
|
hd = hd_for;
|
|
goto copy_token;
|
|
|
|
case lsym_if:
|
|
spaced_expr = true;
|
|
hd = hd_if;
|
|
goto copy_token;
|
|
|
|
case lsym_while:
|
|
spaced_expr = true;
|
|
hd = hd_while;
|
|
goto copy_token;
|
|
|
|
case lsym_do:
|
|
process_do(&force_nl, &last_else);
|
|
goto copy_token;
|
|
|
|
case lsym_else:
|
|
process_else(&force_nl, &last_else);
|
|
goto copy_token;
|
|
|
|
case lsym_typedef:
|
|
case lsym_storage_class:
|
|
out.blank_line_before = false;
|
|
goto copy_token;
|
|
|
|
case lsym_tag:
|
|
if (ps.nparen > 0)
|
|
goto copy_token;
|
|
/* FALLTHROUGH */
|
|
case lsym_type_outside_parentheses:
|
|
process_type(&decl_ind, &tabs_to_var);
|
|
goto copy_token;
|
|
|
|
case lsym_type_in_parentheses:
|
|
case lsym_offsetof:
|
|
case lsym_sizeof:
|
|
case lsym_word:
|
|
case lsym_funcname:
|
|
case lsym_return:
|
|
process_ident(lsym, decl_ind, tabs_to_var, &spaced_expr,
|
|
&force_nl, hd);
|
|
copy_token:
|
|
copy_token();
|
|
if (lsym != lsym_funcname)
|
|
ps.want_blank = true;
|
|
break;
|
|
|
|
case lsym_period:
|
|
process_period();
|
|
break;
|
|
|
|
case lsym_comma:
|
|
process_comma(decl_ind, tabs_to_var, &force_nl);
|
|
break;
|
|
|
|
case lsym_preprocessing:
|
|
process_preprocessing();
|
|
break;
|
|
|
|
case lsym_comment:
|
|
process_comment();
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
*code.e = '\0';
|
|
if (lsym != lsym_comment && lsym != lsym_newline &&
|
|
lsym != lsym_preprocessing)
|
|
ps.prev_token = lsym;
|
|
}
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
main_init_globals();
|
|
main_load_profiles(argc, argv);
|
|
main_parse_command_line(argc, argv);
|
|
main_prepare_parsing();
|
|
main_loop();
|
|
}
|
|
|
|
#ifdef debug
|
|
void
|
|
debug_printf(const char *fmt, ...)
|
|
{
|
|
FILE *f = output == stdout ? stderr : stdout;
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
vfprintf(f, fmt, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
void
|
|
debug_println(const char *fmt, ...)
|
|
{
|
|
FILE *f = output == stdout ? stderr : stdout;
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
vfprintf(f, fmt, ap);
|
|
va_end(ap);
|
|
fprintf(f, "\n");
|
|
}
|
|
|
|
void
|
|
debug_vis_range(const char *prefix, const char *s, const char *e,
|
|
const char *suffix)
|
|
{
|
|
debug_printf("%s", prefix);
|
|
for (const char *p = s; p < e; p++) {
|
|
if (*p == '\\' || *p == '"')
|
|
debug_printf("\\%c", *p);
|
|
else if (isprint((unsigned char)*p))
|
|
debug_printf("%c", *p);
|
|
else if (*p == '\n')
|
|
debug_printf("\\n");
|
|
else if (*p == '\t')
|
|
debug_printf("\\t");
|
|
else
|
|
debug_printf("\\x%02x", (unsigned char)*p);
|
|
}
|
|
debug_printf("%s", suffix);
|
|
}
|
|
#endif
|
|
|
|
static void *
|
|
nonnull(void *p)
|
|
{
|
|
if (p == NULL)
|
|
err(EXIT_FAILURE, NULL);
|
|
return p;
|
|
}
|
|
|
|
void *
|
|
xmalloc(size_t size)
|
|
{
|
|
return nonnull(malloc(size));
|
|
}
|
|
|
|
void *
|
|
xrealloc(void *p, size_t new_size)
|
|
{
|
|
return nonnull(realloc(p, new_size));
|
|
}
|
|
|
|
char *
|
|
xstrdup(const char *s)
|
|
{
|
|
return nonnull(strdup(s));
|
|
}
|