685 lines
18 KiB
C
685 lines
18 KiB
C
/* $NetBSD: io.c,v 1.14 2009/04/12 11:09:49 lukem Exp $ */
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/*
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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. 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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/*
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* Copyright (c) 1976 Board of Trustees of the University of Illinois.
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* Copyright (c) 1985 Sun Microsystems, Inc.
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* 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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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)io.c 8.1 (Berkeley) 6/6/93";
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#else
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__RCSID("$NetBSD: io.c,v 1.14 2009/04/12 11:09:49 lukem Exp $");
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#endif
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#endif /* not lint */
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#include <ctype.h>
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#include <err.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 "indent_globs.h"
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int comment_open;
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static int paren_target;
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void
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dump_line(void)
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{ /* dump_line is the routine that actually
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* effects the printing of the new source. It
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* prints the label section, followed by the
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* code section with the appropriate nesting
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* level, followed by any comments */
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int cur_col, target_col;
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static int not_first_line;
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target_col = 0;
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if (ps.procname[0]) {
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if (troff) {
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if (comment_open) {
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comment_open = 0;
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fprintf(output, ".*/\n");
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}
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fprintf(output, ".Pr \"%s\"\n", ps.procname);
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}
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ps.ind_level = 0;
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ps.procname[0] = 0;
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}
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if (s_code == e_code && s_lab == e_lab && s_com == e_com) {
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if (suppress_blanklines > 0)
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suppress_blanklines--;
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else {
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ps.bl_line = true;
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n_real_blanklines++;
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}
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} else
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if (!inhibit_formatting) {
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suppress_blanklines = 0;
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ps.bl_line = false;
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if (prefix_blankline_requested && not_first_line) {
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if (swallow_optional_blanklines) {
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if (n_real_blanklines == 1)
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n_real_blanklines = 0;
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} else {
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if (n_real_blanklines == 0)
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n_real_blanklines = 1;
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}
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}
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while (--n_real_blanklines >= 0)
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putc('\n', output);
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n_real_blanklines = 0;
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if (ps.ind_level == 0)
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ps.ind_stmt = 0; /* this is a class A
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* kludge. dont do
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* additional statement
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* indentation if we are
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* at bracket level 0 */
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if (e_lab != s_lab || e_code != s_code)
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++code_lines; /* keep count of lines with
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* code */
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if (e_lab != s_lab) { /* print lab, if any */
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if (comment_open) {
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comment_open = 0;
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fprintf(output, ".*/\n");
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}
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while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
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e_lab--;
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cur_col = pad_output(1, compute_label_target());
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if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0
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|| strncmp(s_lab, "#endif", 6) == 0)) {
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char *s = s_lab;
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if (e_lab[-1] == '\n')
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e_lab--;
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do
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putc(*s++, output);
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while (s < e_lab && 'a' <= *s && *s <= 'z');
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while ((*s == ' ' || *s == '\t') && s < e_lab)
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s++;
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if (s < e_lab)
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fprintf(output, s[0] == '/' && s[1] == '*' ? "\t%.*s" : "\t/* %.*s */",
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(int)(e_lab - s), s);
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} else
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fprintf(output, "%.*s", (int)(e_lab - s_lab), s_lab);
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cur_col = count_spaces(cur_col, s_lab);
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} else
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cur_col = 1; /* there is no label section */
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ps.pcase = false;
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if (s_code != e_code) { /* print code section, if any */
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char *p;
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if (comment_open) {
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comment_open = 0;
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fprintf(output, ".*/\n");
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}
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target_col = compute_code_target();
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{
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int i;
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for (i = 0; i < ps.p_l_follow; i++)
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if (ps.paren_indents[i] >= 0)
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ps.paren_indents[i] = -(ps.paren_indents[i] + target_col);
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}
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cur_col = pad_output(cur_col, target_col);
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for (p = s_code; p < e_code; p++)
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if (*p == (char) 0200)
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fprintf(output, "%d", target_col * 7);
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else
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putc(*p, output);
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cur_col = count_spaces(cur_col, s_code);
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}
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if (s_com != e_com) {
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if (troff) {
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int all_here = 0;
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char *p;
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if (e_com[-1] == '/' && e_com[-2] == '*')
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e_com -= 2, all_here++;
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while (e_com > s_com && e_com[-1] == ' ')
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e_com--;
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*e_com = 0;
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p = s_com;
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while (*p == ' ')
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p++;
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if (p[0] == '/' && p[1] == '*')
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p += 2, all_here++;
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else
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if (p[0] == '*')
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p += p[1] == '/' ? 2 : 1;
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while (*p == ' ')
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p++;
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if (*p == 0)
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goto inhibit_newline;
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if (comment_open < 2 && ps.box_com) {
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comment_open = 0;
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fprintf(output, ".*/\n");
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}
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if (comment_open == 0) {
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if ('a' <= *p && *p <= 'z')
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*p = *p + 'A' - 'a';
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if (e_com - p < 50 && all_here == 2) {
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char *follow = p;
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fprintf(output, "\n.nr C! \\w\1");
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while (follow < e_com) {
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switch (*follow) {
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case '\n':
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putc(' ', output);
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case 1:
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break;
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case '\\':
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putc('\\', output);
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default:
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putc(*follow, output);
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}
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follow++;
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}
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putc(1, output);
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}
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fprintf(output, "\n./* %dp %d %dp\n",
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ps.com_col * 7,
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(s_code != e_code || s_lab != e_lab) - ps.box_com,
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target_col * 7);
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}
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comment_open = 1 + ps.box_com;
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while (*p) {
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if (*p == BACKSLASH)
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putc(BACKSLASH, output);
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putc(*p++, output);
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}
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} else { /* print comment, if any */
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int target = ps.com_col;
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char *com_st = s_com;
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target += ps.comment_delta;
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while (*com_st == '\t')
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com_st++, target += 8; /* ? */
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while (target <= 0)
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if (*com_st == ' ')
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target++, com_st++;
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else
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if (*com_st == '\t')
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target = ((target - 1) & ~7) + 9, com_st++;
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else
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target = 1;
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if (cur_col > target) { /* if comment cant fit
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* on this line, put it
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* on next line */
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putc('\n', output);
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cur_col = 1;
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++ps.out_lines;
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}
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while (e_com > com_st
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&& isspace((unsigned char)e_com[-1]))
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e_com--;
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cur_col = pad_output(cur_col, target);
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if (!ps.box_com) {
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if (star_comment_cont
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&& (com_st[1] != '*'
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|| e_com <= com_st + 1)) {
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if (com_st[1] == ' '
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&& com_st[0] == ' '
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&& e_com > com_st + 1)
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com_st[1] = '*';
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else
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fwrite(" * ",
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com_st[0] == '\t'
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? 2
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: com_st[0]=='*'
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? 1
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: 3, 1, output);
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}
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}
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fwrite(com_st,
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e_com - com_st, 1, output);
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ps.comment_delta = ps.n_comment_delta;
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cur_col = count_spaces(cur_col, com_st);
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++ps.com_lines; /* count lines with
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* comments */
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}
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}
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if (ps.use_ff)
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putc('\014', output);
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else
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putc('\n', output);
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inhibit_newline:
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++ps.out_lines;
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if (ps.just_saw_decl == 1 && blanklines_after_declarations) {
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prefix_blankline_requested = 1;
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ps.just_saw_decl = 0;
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} else
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prefix_blankline_requested = postfix_blankline_requested;
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postfix_blankline_requested = 0;
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}
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ps.decl_on_line = ps.in_decl; /* if we are in the middle of a
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* declaration, remember that fact for
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* proper comment indentation */
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ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be
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* indented if we have not
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* completed this stmt and if
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* we are not in the middle of
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* a declaration */
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ps.use_ff = false;
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ps.dumped_decl_indent = 0;
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*(e_lab = s_lab) = '\0';/* reset buffers */
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*(e_code = s_code) = '\0';
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*(e_com = s_com) = '\0';
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ps.ind_level = ps.i_l_follow;
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ps.paren_level = ps.p_l_follow;
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paren_target = -ps.paren_indents[ps.paren_level - 1];
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not_first_line = 1;
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}
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int
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compute_code_target(void)
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{
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int target_col = ps.ind_size * ps.ind_level + 1;
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if (ps.paren_level) {
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if (!lineup_to_parens)
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target_col += continuation_indent * ps.paren_level;
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else {
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int w;
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int t = paren_target;
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if ((w = count_spaces(t, s_code) - max_col) > 0
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&& count_spaces(target_col, s_code) <= max_col) {
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t -= w + 1;
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if (t > target_col)
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target_col = t;
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} else
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target_col = t;
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}
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} else
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if (ps.ind_stmt)
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target_col += continuation_indent;
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return target_col;
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}
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int
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compute_label_target(void)
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{
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return
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ps.pcase ? (int) (case_ind * ps.ind_size) + 1
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: *s_lab == '#' ? 1
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: ps.ind_size * (ps.ind_level - label_offset) + 1;
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}
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/*
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* Copyright (C) 1976 by the Board of Trustees of the University of Illinois
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*
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* All rights reserved
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*
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*
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* NAME: fill_buffer
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*
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* FUNCTION: Reads one block of input into input_buffer
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*
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* HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A
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* Willcox of CAC Added check for switch back to partly full input
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* buffer from temporary buffer
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*
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*/
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void
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fill_buffer(void)
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{ /* this routine reads stuff from the input */
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char *p;
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int i;
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FILE *f = input;
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char *n;
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if (bp_save != 0) { /* there is a partly filled input buffer left */
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buf_ptr = bp_save; /* dont read anything, just switch
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* buffers */
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buf_end = be_save;
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bp_save = be_save = 0;
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if (buf_ptr < buf_end)
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return; /* only return if there is really something in
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* this buffer */
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}
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for (p = in_buffer;;) {
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if (p >= in_buffer_limit) {
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int size = (in_buffer_limit - in_buffer) * 2 + 10;
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int offset = p - in_buffer;
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n = (char *) realloc(in_buffer, size);
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if (n == 0)
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errx(1, "input line too long");
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in_buffer = n;
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p = in_buffer + offset;
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in_buffer_limit = in_buffer + size - 2;
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}
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if ((i = getc(f)) == EOF) {
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*p++ = ' ';
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*p++ = '\n';
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had_eof = true;
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break;
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}
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*p++ = i;
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if (i == '\n')
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break;
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}
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buf_ptr = in_buffer;
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buf_end = p;
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if (p[-2] == '/' && p[-3] == '*') {
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if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
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fill_buffer(); /* flush indent error message */
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else {
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int com = 0;
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p = in_buffer;
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while (*p == ' ' || *p == '\t')
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p++;
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if (*p == '/' && p[1] == '*') {
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p += 2;
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while (*p == ' ' || *p == '\t')
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p++;
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if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
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&& p[4] == 'N' && p[5] == 'T') {
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p += 6;
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while (*p == ' ' || *p == '\t')
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p++;
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if (*p == '*')
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com = 1;
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else {
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if (*p == 'O') {
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if (*++p == 'N')
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p++, com = 1;
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else
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if (*p == 'F' && *++p == 'F')
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p++, com = 2;
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}
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}
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while (*p == ' ' || *p == '\t')
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p++;
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if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) {
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if (s_com != e_com || s_lab != e_lab || s_code != e_code)
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dump_line();
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if (!(inhibit_formatting = com - 1)) {
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n_real_blanklines = 0;
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postfix_blankline_requested = 0;
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prefix_blankline_requested = 0;
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suppress_blanklines = 1;
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}
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}
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}
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}
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}
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}
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if (inhibit_formatting) {
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p = in_buffer;
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do
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putc(*p, output);
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while (*p++ != '\n');
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}
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}
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/*
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* Copyright (C) 1976 by the Board of Trustees of the University of Illinois
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*
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* All rights reserved
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*
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*
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* NAME: pad_output
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*
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* FUNCTION: Writes tabs and spaces to move the current column up to the desired
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* position.
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*
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* ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
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*
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* PARAMETERS: current integer The current column target
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* target integer The desired column
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*
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* RETURNS: Integer value of the new column. (If current >= target, no action is
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* taken, and current is returned.
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*
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* GLOBALS: None
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*
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* CALLS: write (sys)
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*
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* CALLED BY: dump_line
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*
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* HISTORY: initial coding November 1976 D A Willcox of CAC
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*
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*/
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|
int
|
|
pad_output(int current, int target)
|
|
{
|
|
int curr; /* internal column pointer */
|
|
int tcur;
|
|
|
|
if (troff)
|
|
fprintf(output, "\\h'|%dp'", (target - 1) * 7);
|
|
else {
|
|
if (current >= target)
|
|
return (current); /* line is already long enough */
|
|
curr = current;
|
|
while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) {
|
|
putc('\t', output);
|
|
curr = tcur;
|
|
}
|
|
while (curr++ < target)
|
|
putc(' ', output); /* pad with final blanks */
|
|
}
|
|
return (target);
|
|
}
|
|
/*
|
|
* Copyright (C) 1976 by the Board of Trustees of the University of Illinois
|
|
*
|
|
* All rights reserved
|
|
*
|
|
*
|
|
* NAME: count_spaces
|
|
*
|
|
* FUNCTION: Find out where printing of a given string will leave the current
|
|
* character position on output.
|
|
*
|
|
* ALGORITHM: Run thru input string and add appropriate values to current
|
|
* position.
|
|
*
|
|
* RETURNS: Integer value of position after printing "buffer" starting in column
|
|
* "current".
|
|
*
|
|
* HISTORY: initial coding November 1976 D A Willcox of CAC
|
|
*
|
|
*/
|
|
int
|
|
count_spaces(int current, char *buffer)
|
|
/*
|
|
* this routine figures out where the character position will be after
|
|
* printing the text in buffer starting at column "current"
|
|
*/
|
|
{
|
|
char *buf; /* used to look thru buffer */
|
|
int cur; /* current character counter */
|
|
|
|
cur = current;
|
|
|
|
for (buf = buffer; *buf != '\0'; ++buf) {
|
|
switch (*buf) {
|
|
|
|
case '\n':
|
|
case 014: /* form feed */
|
|
cur = 1;
|
|
break;
|
|
|
|
case '\t':
|
|
cur = ((cur - 1) & tabmask) + tabsize + 1;
|
|
break;
|
|
|
|
case 010: /* backspace */
|
|
--cur;
|
|
break;
|
|
|
|
default:
|
|
++cur;
|
|
break;
|
|
} /* end of switch */
|
|
} /* end of for loop */
|
|
return (cur);
|
|
}
|
|
|
|
|
|
int found_err;
|
|
|
|
void
|
|
diag(int level, const char *msg, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, msg);
|
|
|
|
if (level)
|
|
found_err = 1;
|
|
if (output == stdout) {
|
|
fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
|
|
vfprintf(stdout, msg, ap);
|
|
fprintf(stdout, " */\n");
|
|
} else {
|
|
fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
|
|
vfprintf(stdout, msg, ap);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
va_end(ap);
|
|
}
|
|
|
|
void
|
|
writefdef(struct fstate *f, int nm)
|
|
{
|
|
fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
|
|
nm, f->font, nm, f->size);
|
|
}
|
|
|
|
char *
|
|
chfont(struct fstate *of, struct fstate *nf, char *s)
|
|
{
|
|
if (of->font[0] != nf->font[0]
|
|
|| of->font[1] != nf->font[1]) {
|
|
*s++ = '\\';
|
|
*s++ = 'f';
|
|
if (nf->font[1]) {
|
|
*s++ = '(';
|
|
*s++ = nf->font[0];
|
|
*s++ = nf->font[1];
|
|
} else
|
|
*s++ = nf->font[0];
|
|
}
|
|
if (nf->size != of->size) {
|
|
*s++ = '\\';
|
|
*s++ = 's';
|
|
if (nf->size < of->size) {
|
|
*s++ = '-';
|
|
*s++ = '0' + of->size - nf->size;
|
|
} else {
|
|
*s++ = '+';
|
|
*s++ = '0' + nf->size - of->size;
|
|
}
|
|
}
|
|
return s;
|
|
}
|
|
|
|
|
|
void
|
|
parsefont(struct fstate *f, const char *s0)
|
|
{
|
|
const char *s = s0;
|
|
int sizedelta = 0;
|
|
memset(f, 0, sizeof *f);
|
|
while (*s) {
|
|
if (isdigit((unsigned char)*s))
|
|
f->size = f->size * 10 + *s - '0';
|
|
else
|
|
if (isupper((unsigned char)*s)) {
|
|
if (f->font[0])
|
|
f->font[1] = *s;
|
|
else
|
|
f->font[0] = *s;
|
|
} else
|
|
if (*s == 'c')
|
|
f->allcaps = 1;
|
|
else
|
|
if (*s == '+')
|
|
sizedelta++;
|
|
else
|
|
if (*s == '-')
|
|
sizedelta--;
|
|
else {
|
|
fprintf(stderr, "indent: bad font specification: %s\n", s0);
|
|
exit(1);
|
|
}
|
|
s++;
|
|
}
|
|
if (f->font[0] == 0)
|
|
f->font[0] = 'R';
|
|
if (bodyf.size == 0)
|
|
bodyf.size = 11;
|
|
if (f->size == 0)
|
|
f->size = bodyf.size + sizedelta;
|
|
else
|
|
if (sizedelta > 0)
|
|
f->size += bodyf.size;
|
|
else
|
|
f->size = bodyf.size - f->size;
|
|
}
|