637 lines
15 KiB
C
637 lines
15 KiB
C
/**
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* Copyright (c) 1985 Sun Microsystems, Inc.
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* Copyright (c) 1980 The Regents of the University of California.
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* Copyright (c) 1976 Board of Trustees of the University of Illinois.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the University of California, Berkeley, the University of Illinois,
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* Urbana, and Sun Microsystems, Inc. The name of either University
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* or Sun Microsystems may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#define PUBLIC extern
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#include <ctype.h>
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#include <string.h>
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#include <stdlib.h>
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#include "globs.h"
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#include "proto.h"
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int comment_open;
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static paren_target;
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void dump_line()
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{ /* dump_line is the routine
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that actually effects the
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printing of the new source.
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It prints the label section,
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followed by the code section
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with the appropriate nesting
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level, followed by any
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comments */
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register int cur_col, target_col;
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static not_first_line;
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if (ps.procname[0])
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{
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if (troff)
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{
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if (comment_open)
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{
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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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{
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if (suppress_blanklines > 0)
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suppress_blanklines--;
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else
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{
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ps.bl_line = true;
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n_real_blanklines++;
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}
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} else if (!inhibit_formatting)
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{
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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_opt_bl)
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{
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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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{
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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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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 kludge.
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dont do additional statement
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indentation if we are at
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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)
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{ /* print lab, if any */
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if (comment_open)
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{
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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, label_target());
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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)
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{ /* print code section, if any */
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register char *p;
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if (comment_open)
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{
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comment_open = 0;
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fprintf(output, ".*/\n");
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}
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target_col = code_target();
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{
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register 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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{
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int all_here = 0;
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register 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 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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{
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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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{
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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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{
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register 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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{
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switch (*follow)
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{
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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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{
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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
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{ /* print comment, if any */
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register target = ps.com_col;
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register 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 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)
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{ /* if comment cant fit on this
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line, put it 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 && isspace(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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{
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if (star_comment_cont && (com_st[1] != '*' || e_com <= com_st + 1))
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if (com_st[1] == ' ' && com_st[0] == ' ' && e_com > com_st + 1)
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com_st[1] = '*';
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else
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fwrite(" * ", com_st[0] == '\t' ? 2 : com_st[0] == '*' ? 1 : 3, 1, output);
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}
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fwrite(com_st, (int)(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 comments */
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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 && bl_aft_decl)
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{
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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
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fact for proper comment
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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
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not completed this
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stmt and if we are
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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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return;
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}
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int code_target()
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{
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register 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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{
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register w;
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register 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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{
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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 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 label_target()
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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()
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{ /* this routine reads stuff
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from the input */
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register char *p;
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register int i;
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register FILE *f = input;
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if (bp_save != 0)
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{ /* there is a partly filled
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input buffer left */
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buf_ptr = bp_save; /* dont read anything, just
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switch 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
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really something in this
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buffer */
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}
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for (p = buf_ptr = in_buffer;;)
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{
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if ((i = getc(f)) == EOF)
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{
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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++ = (char)i;
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if (i == '\n')
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break;
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}
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buf_end = p;
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if (p[-2] == '/' && p[-3] == '*')
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{
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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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{
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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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{
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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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{
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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 if (*p == 'O')
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if (*++p == 'N')
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p++, com = 1;
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else if (*p == 'F' && *++p == 'F')
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p++, com = 2;
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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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{
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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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{
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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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{
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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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return;
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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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* nteger The desired column
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*
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* RETURNS: Integer value of the new column. (If current >= target, no action
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* is 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(current, target) /* writes tabs and blanks (if
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necessary) to get the
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current output position up
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to the target column */
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int current; /* the current column value */
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int target; /* position we want it at */
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{
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register int curr; /* internal column pointer */
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register int tcur;
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if (troff)
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fprintf(output, "\\h'|%dp'", (target - 1) * 7);
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else
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{
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if (current >= target)
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return (current); /* line is already long enough */
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curr = current;
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while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target)
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{
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putc('\t', output);
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curr = tcur;
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}
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while (curr++ < target)
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putc(' ', output); /* pad with final blanks */
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}
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return (target);
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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: count_spaces
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*
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* FUNCTION: Find out where printing of a given string will leave the current
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* character position on output.
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*
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* ALGORITHM: Run thru input string and add appropriate values to current
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* position.
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*
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* RETURNS: Integer value of position after printing "buffer" starting in column
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* "current".
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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
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count_spaces(current, buffer)
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/*
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* this routine figures out where the character position will be after
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* printing the text in buffer starting at column "current"
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*/
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int current;
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char *buffer;
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{
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register char *buf; /* used to look thru buffer */
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register int cur; /* current character counter */
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cur = current;
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for (buf = buffer; *buf != '\0'; ++buf)
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{
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switch (*buf)
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{
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case '\n':
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case 014: /* form feed */
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cur = 1;
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break;
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case '\t':
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cur = ((cur - 1) & tabmask) + tabsize + 1;
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break;
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case '': /* this is a backspace */
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--cur;
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break;
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default:
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++cur;
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break;
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} /* end of switch */
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} /* end of for loop */
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return (cur);
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}
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int found_err;
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void diag(level, msg, a, b)
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int level;
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char *msg;
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int a, b;
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{
|
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if (level)
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found_err = 1;
|
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if (output == stdout)
|
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{
|
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fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
|
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fprintf(stdout, msg, a, b);
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fprintf(stdout, " */\n");
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} else
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{
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fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
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fprintf(stderr, msg, a, b);
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fprintf(stderr, "\n");
|
||
}
|
||
}
|
||
|
||
void writefdef(f, nm)
|
||
register 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(of, nf, s)
|
||
register struct fstate *of, *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++ = (char)'0' + of->size - nf->size;
|
||
} else
|
||
{
|
||
*s++ = '+';
|
||
*s++ = (char)'0' + nf->size - of->size;
|
||
}
|
||
}
|
||
return s;
|
||
}
|
||
|
||
|
||
void parsefont(f, s0)
|
||
register struct fstate *f;
|
||
char *s0;
|
||
{
|
||
register char *s = s0;
|
||
int sizedelta = 0;
|
||
memset(f, '\0', sizeof *f);
|
||
while (*s)
|
||
{
|
||
if (isdigit(*s))
|
||
f->size = f->size * 10 + *s - '0';
|
||
else if (isupper(*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;
|
||
}
|