OS/2 Shareware BBS: 10 Tools/10-Tools.zip/INDENTP.ZIP/INDENT2

Text File | 1992-04-10 | 61KB | 2,265 lines

#    This is a shell archive.
#    Remove everything above and including the cut line.
#    Then run the rest of the file through sh.
#----cut here-----cut here-----cut here-----cut here----#
#!/bin/sh
# shar:    Shell Archiver
#    Run the following text with /bin/sh to create:
#    indent.c
#    io.c
# This archive created: Fri Apr 10 20:51:12 1992
echo shar: extracting indent.c
sed 's/^X//' << \SHAR_EOF > indent.c
X/*
X * Copyright 1989 Object Design, Inc.
X * Copyright (c) 1985 Sun Microsystems, Inc.
X * Copyright (c) 1980 The Regents of the University of California.
X * Copyright (c) 1976 Board of Trustees of the University of Illinois.
X * All rights reserved.
X *
X * Redistribution and use in source and binary forms are permitted
X * provided that the above copyright notice and this paragraph are
X * duplicated in all such forms and that any documentation,
X * advertising materials, and other materials related to such
X * distribution and use acknowledge that the software was developed
X * by the University of California, Berkeley, the University of Illinois,
X * Urbana, and Sun Microsystems, Inc.  The name of either University
X * or Sun Microsystems may not be used to endorse or promote products
X * derived from this software without specific prior written permission.
X * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
X * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
X * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
X */
X
X#ifndef lint
Xchar copyright[] =
X"@(#) Copyright 1989 Object Design, Inc.\n\
X @(#) Copyright (c) 1985 Sun Microsystems, Inc.\n\
X @(#) Copyright (c) 1980 The Regents of the University of California.\n\
X @(#) Copyright (c) 1976 Board of Trustees of the University of Illinois.\n\
X All rights reserved.\n";
X
X#endif                            /* not lint */
X
X#ifndef lint
Xstatic char sccsid[] = "@(#)indent.c    5.11 (Berkeley) 88/09/15";
X
X#endif                            /* not lint */
X
X#include "globals.h"
X#include "codes.h"
X
X#ifdef MSDOS                    /* or OS/2 */
X#include <malloc.h>
X#include <stdlib.h>
X#include <process.h>
X#include <string.h>
X#include <io.h>
X#define R_OK 4
X#define INCL_NOPM
X#define INCL_BASE
X#define INCL_DOSFILEMGR
X#include <os2.h>
X#else                            /* not MSDOS or OS/2 */
X#include <sys/param.h>
X#include <unistd.h>
X#endif                            /* BSD */
X
X#include <ctype.h>
X
Xchar *in_name = "Standard Input";    /* will always point to name of input file */
Xchar *out_name = "Standard Output";    /* will always point to name of output file */
Xchar bakfile[MAXPATHLEN] = "";
X
X#ifdef ANSIC
Xstatic void bakcopy(void);
X
X#endif
X
X#ifdef ANSIC
Xvoid main(int argc, char **argv)
X#else
Xmain(argc, argv)
X    int argc;
X    char **argv;
X
X#endif
X{
X
X    extern int found_err;        /* flag set in diag() on error */
X    int dec_ind;                /* current indentation for declarations */
X    int di_stack[20];            /* a stack of structure indentation levels */
X    int flushed_nl;                /* used when buffering up comments to remember
X                                   that a newline was passed over */
X    int force_nl;                /* when true, code must be broken */
X    int hd_type;                /* used to store type of stmt for if (...), for
X                                   (...), etc */
X    register int i;                /* local loop counter */
X    int scase;                    /* set to true when we see a case, so we will
X                                   know what to do with the following colon */
X    int sp_sw;                    /* when true, we are in the expressin of
X                                   if(...), while(...), etc. */
X    int squest;                    /* when this is positive, we have seen a ?
X                                   without the matching : in a <c>?<s>:<s>
X                                   construct */
X    register char *t_ptr;        /* used for copying tokens */
X    int type_code;                /* the type of token, returned by lexi */
X
X    int last_else = 0;            /* true iff last keyword was an else */
X    int ch;                        /* answer to Y/N prompt */
X
X    /*-----------------------------------------------*\
X    |              INITIALIZATION                      |
X    \*-----------------------------------------------*/
X
X
X    ps.p_stack[0] = stmt;        /* this is the parser's stack */
X    ps.last_nl = true;            /* this is true if the last thing scanned was a
X                                   newline */
X    ps.last_token = semicolon;
X    combuf = (char *) malloc(bufsize);
X    labbuf = (char *) malloc(bufsize);
X    codebuf = (char *) malloc(bufsize);
X    l_com = combuf + bufsize - 5;
X    l_lab = labbuf + bufsize - 5;
X    l_code = codebuf + bufsize - 5;
X    combuf[0] = codebuf[0] = labbuf[0] = ' ';    /* set up code, label, and
X                                                   comment buffers */
X    combuf[1] = codebuf[1] = labbuf[1] = '\0';
X    ps.else_if = 1;                /* Default else-if special processing to on */
X    s_lab = e_lab = labbuf + 1;
X    s_code = e_code = codebuf + 1;
X    s_com = e_com = combuf + 1;
X
X    buf_ptr = buf_end = in_buffer;
X    line_no = 1;
X    had_eof = ps.in_decl = ps.decl_on_line = break_comma = false;
X    sp_sw = force_nl = false;
X    ps.in_or_st = false;
X    ps.bl_line = true;
X    dec_ind = 0;
X    di_stack[ps.dec_nest = 0] = 0;
X    ps.want_blank = ps.in_stmt = ps.ind_stmt = false;
X    ps.cc_comment = 0;
X
X
X    scase = ps.pcase = false;
X    squest = 0;
X    sc_end = 0;
X    bp_save = 0;
X    be_save = 0;
X
X    output = NULL;
X
X
X
X    /*--------------------------------------------------*\
X    |           COMMAND LINE SCAN                        |
X    \*--------------------------------------------------*/
X
X#ifdef undef
X    max_col = 78;                /* -l78 */
X    lineup_to_parens = 1;        /* -lp */
X    ps.ljust_decl = 0;            /* -ndj */
X    ps.com_ind = 33;            /* -c33 */
X    star_comment_cont = 1;        /* -sc */
X    ps.ind_size = 8;            /* -i8 */
X    verbose = 0;
X    ps.decl_indent = 16;        /* -di16 */
X    ps.indent_parameters = 1;    /* -ip */
X    ps.decl_com_ind = 0;        /* if this is not set to some positive value by
X                                   an arg, we will set this equal to ps.com_ind */
X    btype_2 = 1;                /* -br */
X    btype_3 = 0;                /* not -brr */
X    cuddle_else = 1;            /* -ce */
X    ps.unindent_displace = 0;    /* -d0 */
X    ps.case_indent = 0;            /* -cli0 */
X    ps.case_code_indent = 1;    /* -cci1 */
X    format_col1_comments = 1;    /* -fc1 */
X    procnames_start_line = 1;    /* -psl */
X    proc_calls_space = 0;        /* -npcs */
X    parens_space = 0;            /* -nprs */
X    comment_delimiter_on_blankline = 1;    /* -cdb */
X    ps.leave_comma = 1;            /* -nbc */
X#endif
X
X    for (i = 1; i < argc; ++i)
X        if (strcmp(argv[i], "-npro") == 0)
X            break;
X    set_defaults();
X    if (i >= argc)
X        set_profile();
X
X    for (i = 1; i < argc; ++i)
X    {
X
X        /*
X           look thru args (if any) for changes to defaults
X        */
X        if (argv[i][0] != '-')
X        {                        /* no flag on parameter */
X            if (input == NULL)
X            {                    /* we must have the input file */
X                in_name = argv[i];    /* remember name of input file */
X                input = fopen(in_name, "r");
X                if (input == NULL)
X                {                /* check for open error */
X                    fprintf(stderr, "indent: can't open %s\n", argv[i]);
X                    exit(1);
X                }
X                continue;
X            }
X            else if (output == NULL)
X            {                    /* we have the output file */
X                out_name = argv[i];    /* remember name of output file */
X                if (strcmp(in_name, out_name) == 0)
X                {                /* attempt to overwrite the file */
X                    fprintf(stderr, "indent: input and output files must be different\n");
X                    exit(1);
X                }
X                if (access(out_name, R_OK) == 0)
X                {
X                    fprintf(stderr, "Reformatting input file %s to produce output file %s\n",
X                                in_name, out_name);
X                    fprintf(stderr, "Output file %s exists; overwrite it? ", out_name);
X                    fflush(stderr);
X                    if ((ch = getchar()) != 'y' && ch != 'Y')
X                    {
X                        fprintf (stderr, "indent: can't create %s\n", argv[i]);
X                        exit(1);
X                    }
X                }
X                output = fopen(out_name, "w");
X                if (output == NULL)
X                {                /* check for create error */
X                    fprintf(stderr, "indent: can't create %s\n", argv[i]);
X                    exit(1);
X                }
X                continue;
X            }
X            fprintf(stderr, "indent: unknown parameter: %s\n", argv[i]);
X            exit(1);
X        }
X        else
X            set_option(argv[i]);
X    }                            /* end of for */
X    if (input == NULL)
X    {
X        fprintf(stderr, "indent: usage: indent file [ outfile ] [ options ]\n");
X        exit(1);
X    }
X    /* set -+ mode by default for .C */
X    if (!cplus)                    /* don't bother if explicit */
X    {
X        char *dot;
X
X        dot = in_name + strlen(in_name) - 2;
X        if ((dot > in_name) && (strcmp(dot, ".C") == 0))
X            set_option("-+");
X    }
X
X    if (output == NULL)
X        if (troff)
X            output = stdout;
X        else
X        {
X            out_name = in_name;
X            bakcopy();
X        }
X    if (ps.com_ind <= 1)
X        ps.com_ind = 2;            /* don't put normal comments before column 2 */
X    if (troff)
X    {
X        if (bodyf.font[0] == 0)
X            parsefont(&bodyf, "R");
X        if (scomf.font[0] == 0)
X            parsefont(&scomf, "I");
X        if (blkcomf.font[0] == 0)
X            blkcomf = scomf, blkcomf.size += 2;
X        if (boxcomf.font[0] == 0)
X            boxcomf = blkcomf;
X        if (stringf.font[0] == 0)
X            parsefont(&stringf, "L");
X        if (keywordf.font[0] == 0)
X            parsefont(&keywordf, "B");
X        writefdef(&bodyf, 'B');
X        writefdef(&scomf, 'C');
X        writefdef(&blkcomf, 'L');
X        writefdef(&boxcomf, 'X');
X        writefdef(&stringf, 'S');
X        writefdef(&keywordf, 'K');
X    }
X    if (block_comment_max_col <= 0)
X        block_comment_max_col = max_col;
X    if (ps.decl_com_ind <= 0)    /* if not specified by user, set this */
X        ps.decl_com_ind = ps.ljust_decl ? (ps.com_ind <= 10 ? 2 : ps.com_ind - 8) : ps.com_ind;
X    if (continuation_indent == 0)
X        continuation_indent = ps.ind_size;
X    fill_buffer();                /* get first batch of stuff into input buffer */
X
X    parse(semicolon);
X    {
X        register char *p = buf_ptr;
X        register col = 1;
X
X        while (1)
X        {
X            if (*p == ' ')
X                col++;
X            else if (*p == '\t')
X                col += (tabsize - ((col - 1) % tabsize));    /* JHT 22oct89 */
X            else
X                break;
X            p++;
X        };
X        if (col > ps.ind_size)
X            ps.ind_level = ps.i_l_follow = col / ps.ind_size;
X    }
X    if (troff)
X    {
X        register char *p = in_name, *beg = in_name;
X
X        while (*p)
X            if (*p++ == '/')
X                beg = p;
X        fprintf(output, ".Fn \"%s\"\n", beg);
X    }
X    /*
X       START OF MAIN LOOP
X    */
X
X    while (1)
X    {                            /* this is the main loop.  it will go until we
X                                   reach eof */
X        int is_procname;
X
X        type_code = lexi();        /* lexi reads one token.  The actual characters
X                                   read are stored in "token". lexi returns a
X                                   code indicating the type of token */
X        is_procname = ps.procname[0];
X
X        /*
X           The following code moves everything following an if (), while (),
X           else, etc. up to the start of the following stmt to a buffer. This
X           allows proper handling of both kinds of brace placement.
X        */
X
X        flushed_nl = false;
X        while (ps.search_brace)
X        {                        /* if we scanned an if(), while(), etc., we
X                                   might need to copy stuff into a buffer we
X                                   must loop, copying stuff into save_com,
X                                   until we find the start of the stmt which
X                                   follows the if, or whatever */
X            switch (type_code)
X            {
X            case newline:
X                ++line_no;
X                flushed_nl = true;
X            case form_feed:
X                break;            /* form feeds and newlines found here will be
X                                   ignored */
X
X            case lbrace:        /* this is a brace that starts the compound
X                                   stmt */
X                if (sc_end == 0)
X                {                /* ignore buffering if a comment wasn't stored
X                                   up */
X                    ps.search_brace = false;
X                    goto check_type;
X                }
X        /*        if (btype_2)        Bug notified by Steve Comen, 16 Mar 92 */
X                {
X                    save_com[0] = '{';    /* we either want to put the brace
X                                           right after the if */
X                    goto sw_buffer;    /* go to common code to get out of this
X                                       loop */
X                }
X            case comment:        /* we have a comment, so we must copy it into
X                                   the buffer */
X                if (!flushed_nl || sc_end != 0)
X                {
X                    if (sc_end == 0)
X                    {            /* if this is the first comment, we must set up
X                                   the buffer */
X                        save_com[0] = save_com[1] = ' ';
X                        sc_end = &(save_com[2]);
X                    }
X                    else
X                    {
X                        *sc_end++ = '\n';    /* add newline between comments */
X                        *sc_end++ = ' ';
X                        --line_no;
X                    }
X                    *sc_end++ = '/';    /* copy in start of comment */
X                    *sc_end++ = '*';
X
X                    for (;;)
X                    {            /* loop until we get to the end of the comment */
X                        *sc_end = *buf_ptr++;
X                        if (buf_ptr >= buf_end)
X                            fill_buffer();
X
X                        if (*sc_end++ == '*' && *buf_ptr == '/')
X                            break;    /* we are at end of comment */
X
X                        if (sc_end >= &(save_com[sc_size]))
X                        {        /* check for temp buffer overflow */
X                            diag(1, "Internal buffer overflow - Move big comment from right after if, while, or whatever.");
X                            fflush(output);
X                            exit(1);
X                        }
X                    }
X                    *sc_end++ = '/';    /* add ending slash */
X                    if (++buf_ptr >= buf_end)    /* get past / in buffer */
X                        fill_buffer();
X                    break;
X                }
X            case cc_commnt:    /* we have a comment, so we must copy it into
X                                   the buffer */
X                /* C++ comment */
X                if (!flushed_nl || sc_end != 0)
X                {
X                    if (sc_end == 0)
X                    {            /* if this is the first comment, we must set up
X                                   the buffer */
X                        save_com[0] = save_com[1] = ' ';
X                        sc_end = &(save_com[2]);
X                    }
X                    else
X                    {
X                        *sc_end++ = '\n';    /* add newline between comments */
X                        *sc_end++ = ' ';
X                        --line_no;
X                    }
X                    *sc_end++ = '/';    /* copy in start of comment */
X                    *sc_end++ = '/';
X
X                    for (;;)
X                    {            /* loop until we get to the end of the comment */
X                        *sc_end++ = *buf_ptr++;
X                        if (buf_ptr >= buf_end)
X                            fill_buffer();
X
X                        if (*buf_ptr == '\n')
X                            break;    /* we are at end of comment */
X
X                        if (sc_end >= &(save_com[sc_size]))
X                        {        /* check for temp buffer overflow */
X                            diag(1, "Internal buffer overflow - Move big comment from right after if, while, or whatever.");
X                            fflush(output);
X                            exit(1);
X                        }
X                    }
X                    if (++buf_ptr >= buf_end)    /* eat '\n' */
X                        fill_buffer();
X                    break;
X                }
X            default:            /* it is the start of a normal statment */
X                if (flushed_nl)    /* if we flushed a newline, make sure it is put
X                                   back */
X                    force_nl = true;
X                if (type_code == sp_paren && *token == 'i'
X                    && last_else && ps.else_if
X                    || type_code == sp_nparen && *token == 'e'
X                    && e_code != s_code && e_code[-1] == '}')
X                    force_nl = false;
X
X                if (sc_end == 0)
X                {                /* ignore buffering if comment wasnt saved up */
X                    ps.search_brace = false;
X                    goto check_type;
X                }
X                if (force_nl)
X                {                /* if we should insert a nl here, put it into
X                                   the buffer */
X                    force_nl = false;
X                    --line_no;    /* this will be re-increased when the nl is
X                                   read from the buffer */
X                    *sc_end++ = '\n';
X                    *sc_end++ = ' ';
X                    if (verbose && !flushed_nl)    /* print error msg if the line
X                                                   was not already broken */
X                        diag(0, "Line broken");
X                    flushed_nl = false;
X                }
X                for (t_ptr = token; *t_ptr; ++t_ptr)
X                    *sc_end++ = *t_ptr;    /* copy token into temp buffer */
X                ps.procname[0] = 0;
X
X        sw_buffer:
X                ps.search_brace = false;    /* stop looking for start of stmt */
X                bp_save = buf_ptr;    /* save current input buffer */
X                be_save = buf_end;
X                buf_ptr = save_com;    /* fix so that subsequent calls to lexi
X                                       will take tokens out of save_com */
X                *sc_end++ = ' ';/* add trailing blank, just in case */
X                buf_end = sc_end;
X                sc_end = 0;
X                break;
X            }                    /* end of switch */
X            if (type_code != 0)    /* we must make this check, just in case there
X                                   was an unexpected EOF */
X                type_code = lexi();    /* read another token */
X            /* if (ps.search_brace) ps.procname[0] = 0; */
X            if ((is_procname = ps.procname[0]) && flushed_nl
X                && !procnames_start_line && ps.in_decl
X                && type_code == ident)
X                flushed_nl = 0;
X        }                        /* end of while (search_brace) */
X        last_else = 0;
Xcheck_type:
X        if (type_code == 0)
X        {                        /* we got eof */
X            if (s_lab != e_lab || s_code != e_code
X                || s_com != e_com)    /* must dump end of line */
X                dump_line();
X            if (ps.tos > 1)        /* check for balanced braces */
X                diag(1, "Stuff missing from end of file.");
X
X            if (verbose)
X            {
X                printf("There were %d output lines and %d comments\n",
X                       ps.out_lines, ps.out_coms);
X                printf("(Lines with comments)/(Lines with code): %6.3f\n",
X                       (1.0 * ps.com_lines) / code_lines);
X            }
X            fflush(output);
X            exit(found_err);
X        }
X        if (
X            (type_code != comment) &&
X            (type_code != cc_commnt) &&
X            (type_code != newline) &&
X            (type_code != preesc) &&
X            (type_code != form_feed))
X        {
X            if (force_nl &&
X                (type_code != semicolon) &&
X                (type_code != lbrace || btype_3 || !btype_2))
X            {
X                /* we should force a broken line here */
X                if (verbose && !flushed_nl)
X                    diag(0, "Line broken");
X                flushed_nl = false;
X                dump_line();
X                ps.want_blank = false;    /* dont insert blank at line start */
X                force_nl = false;
X            }
X            ps.in_stmt = true;    /* turn on flag which causes an extra level of
X                                   indentation. this is turned off by a ; or
X                                   '}' */
X            if (s_com != e_com)
X            {                    /* the turkey has embedded a comment in a line.
X                                   fix it */
X                *e_code++ = ' ';
X                for (t_ptr = s_com; *t_ptr; ++t_ptr)
X                {
X                    check_size(code);
X                    *e_code++ = *t_ptr;
X                }
X                *e_code++ = ' ';
X                *e_code = '\0';    /* null terminate code sect */
X                ps.want_blank = false;
X                e_com = s_com;
X            }
X        }
X        else if (type_code != comment && type_code != cc_commnt)
X            /* preserve force_nl thru a comment */
X            force_nl = false;    /* cancel forced newline after newline, form
X                                   feed, etc */
X
X
X
X        /*-----------------------------------------------------*\
X        |       do switch on type of token scanned               |
X        \*-----------------------------------------------------*/
X        check_size(code);
X        switch (type_code)
X        {                        /* now, decide what to do with the token */
X
X        case form_feed:        /* found a form feed in line */
X            ps.use_ff = true;    /* a form feed is treated much like a newline */
X            dump_line();
X            ps.want_blank = false;
X            break;
X
X        case newline:
X            if (ps.last_token != comma || ps.p_l_follow > 0
X                || !ps.leave_comma || ps.block_init || !break_comma || s_com != e_com)
X            {
X                dump_line();
X                ps.want_blank = false;
X            }
X            ++line_no;            /* keep track of input line number */
X            break;
X
X        case lparen:            /* got a '(' or '[' */
X            ++ps.p_l_follow;    /* count parens to make Healy happy */
X            if (ps.want_blank && *token != '[' &&
X                (ps.last_token != ident || proc_calls_space
X               || (ps.its_a_keyword && (!ps.sizeof_keyword || Bill_Shannon))))
X                *e_code++ = ' ';
X            if (ps.in_decl && !ps.block_init)
X                if (troff && !ps.dumped_decl_indent && !is_procname && ps.last_token == decl)
X                {
X                    ps.dumped_decl_indent = 1;
X                    sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token);
X                    e_code += strlen(e_code);
X                }
X                else
X                {
X                    while ((e_code - s_code) < dec_ind)
X                    {
X                        check_size(code);
X                        *e_code++ = ' ';
X                    }
X                    *e_code++ = token[0];
X                }
X            else
X                *e_code++ = token[0];
X            if (parens_space && *token != '[')
X                *e_code++ = ' ';
X            ps.paren_indents[ps.p_l_follow - 1] = (short) (e_code - s_code);
X            if (sp_sw && ps.p_l_follow == 1 && extra_expression_indent
X                && ps.paren_indents[0] < (short) (2 * ps.ind_size))
X                ps.paren_indents[0] = (short) (2 * ps.ind_size);
X            ps.want_blank = false;
X            if (ps.in_or_st && *token == '(' && ps.tos <= 2)
X            {
X                /*
X                   this is a kluge to make sure that declarations will be
X                   aligned right if proc decl has an explicit type on it, i.e.
X                   "int a(x) {..."
X                */
X                parse(semicolon);    /* I said this was a kluge... */
X                ps.in_or_st = false;    /* turn off flag for structure decl or
X                                           initialization */
X            }
X            if (ps.sizeof_keyword)
X                ps.sizeof_mask |= 1 << ps.p_l_follow;
X            break;
X
X        case rparen:            /* got a ')' or ']' */
X            if (ps.cast_mask & (1 << ps.p_l_follow) & ~ps.sizeof_mask)
X            {
X                ps.last_u_d = true;
X                ps.cast_mask &= (1 << ps.p_l_follow) - 1;
X            }
X            ps.sizeof_mask &= (1 << ps.p_l_follow) - 1;
X            if (--ps.p_l_follow < 0)
X            {
X                ps.p_l_follow = 0;
X                diag(0, "Extra %c", *token);
X            }
X            if (e_code == s_code)    /* if the paren starts the line */
X                ps.paren_level = ps.p_l_follow;    /* then indent it */
X
X            if (parens_space && *token != ']')
X                *e_code++ = ' ';
X            *e_code++ = token[0];
X            ps.want_blank = true;
X
X            if (sp_sw && (ps.p_l_follow == 0))
X            {                    /* check for end of if (...), or some such */
X                sp_sw = false;
X                force_nl = true;/* must force newline after if */
X                ps.last_u_d = true;    /* inform lexi that a following operator is
X                                       unary */
X                ps.in_stmt = false;    /* dont use stmt continuation indentation */
X
X                parse(hd_type);    /* let parser worry about if, or whatever */
X            }
X            ps.search_brace = btype_2 && !btype_3;
X            /*
X               this should insure that constructs such as main(){...} and
X               int[]{...} have their braces put in the right place
X            */
X            break;
X
X        case unary_op:            /* this could be any unary operation */
X            if (ps.want_blank)
X                *e_code++ = ' ';
X
X            if (troff && !ps.dumped_decl_indent && ps.in_decl && !is_procname)
X            {
X                sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token);
X                ps.dumped_decl_indent = 1;
X                e_code += strlen(e_code);
X            }
X            else
X            {
X                char *res = token;
X
X                if (ps.in_decl && !ps.block_init)
X                {                /* if this is a unary op in a declaration, we
X                                   should indent this token */
X                    for (i = 0; token[i]; ++i);    /* find length of token */
X                    while ((e_code - s_code) < (dec_ind - i))
X                    {
X                        check_size(code);
X                        *e_code++ = ' ';    /* pad it */
X                    }
X                }
X                if (troff && token[0] == '-' && token[1] == '>')
X                    res = "\\(->";
X                for (t_ptr = res; *t_ptr; ++t_ptr)
X                {
X                    check_size(code);
X                    *e_code++ = *t_ptr;
X                }
X            }
X            ps.want_blank = false;
X            break;
X
X        case binary_op:        /* any binary operation */
X
X            if (ps.want_blank)
X                *e_code++ = ' ';
X            {
X                char *res = token;
X
X                if (troff)
X                    switch (token[0])
X                    {
X                    case '<':
X                        if (token[1] == '=')
X                            res = "\\(<=";
X                        break;
X                    case '>':
X                        if (token[1] == '=')
X                            res = "\\(>=";
X                        break;
X                    case '!':
X                        if (token[1] == '=')
X                            res = "\\(!=";
X                        break;
X                    case '|':
X                        if (token[1] == '|')
X                            res = "\\(br\\(br";
X                        else if (token[1] == 0)
X                            res = "\\(br";
X                        break;
X                    }
X                for (t_ptr = res; *t_ptr; ++t_ptr)
X                {
X                    check_size(code);
X                    *e_code++ = *t_ptr;    /* move the operator */
X                }
X            }
X            ps.want_blank = true;
X            break;
X
X        case postop:            /* got a trailing ++ or -- */
X            *e_code++ = token[0];
X            *e_code++ = token[1];
X            ps.want_blank = true;
X            break;
X
X        case question:            /* got a ? */
X            squest++;            /* this will be used when a later colon appears
X                                   so we can distinguish the <c>?<n>:<n>
X                                   construct */
X            if (ps.want_blank)
X                *e_code++ = ' ';
X            *e_code++ = '?';
X            ps.want_blank = true;
X            break;
X
X        case casestmt:            /* got word 'case' or 'default' */
X            scase = true;        /* so we can process the later colon properly */
X            goto copy_id;
X
X        case privpub:            /* got public, private or protected */
X            strcpy(s_lab, token);
X            e_lab = s_lab + strlen(token);
X            *e_lab++ = ':';
X            *e_lab++ = ' ';
X            *e_lab = '\0';
X            force_nl = true;
X            break;
X
X        case colon:            /* got a ':' */
X            if (squest > 0)
X            {                    /* it is part of the <c>?<n>: <n> construct */
X                --squest;
X                if (ps.want_blank)
X                    *e_code++ = ' ';
X                *e_code++ = ':';
X                ps.want_blank = true;
X                break;
X            }
X            if (ps.in_decl)
X            {
X                if (cplus)        /* assume public, private, or protected */
X                {
X                    for (t_ptr = s_code; *t_ptr; ++t_ptr)
X                        *e_lab++ = *t_ptr;    /* turn everything so far into a
X                                               label */
X                    e_code = s_code;
X                    *e_lab++ = ':';
X                    *e_lab++ = ' ';
X                    *e_lab = '\0';
X                    force_nl = true;
X                    scase = false;
X                    ps.pcase = true;
X                    break;
X                }
X                *e_code++ = ':';
X                ps.want_blank = false;
X                break;
X            }
X            ps.in_stmt = false;    /* seeing a label does not imply we are in a
X                                   stmt */
X            for (t_ptr = s_code; *t_ptr; ++t_ptr)
X                *e_lab++ = *t_ptr;    /* turn everything so far into a label */
X            e_code = s_code;
X            *e_lab++ = ':';
X            *e_lab++ = ' ';
X            *e_lab = '\0';
X
X            force_nl = ps.pcase = scase;    /* ps.pcase will be used by
X                                               dump_line to decide how to
X                                               indent the label. force_nl will
X                                               force a case n: to be on a line
X                                               by itself */
X            scase = false;
X            ps.want_blank = false;
X            break;
X
X        case semicolon:        /* got a ';' */
X            ps.in_or_st = false;/* we are not in an initialization or structure
X                                   declaration */
X            scase = false;        /* these will only need resetting in a error */
X            squest = 0;
X            if (ps.last_token == rparen)
X                ps.in_parameter_declaration = 0;
X            ps.cast_mask = 0;
X            ps.sizeof_mask = 0;
X            ps.block_init = 0;
X            ps.block_init_level = 0;
X            ps.just_saw_decl--;
X
X            if (ps.in_decl && s_code == e_code && !ps.block_init)
X                while ((e_code - s_code) < (dec_ind - 1))
X                {
X                    check_size(code);
X                    *e_code++ = ' ';
X                }
X
X            ps.in_decl = (ps.dec_nest > 0);    /* if we were in a first level
X                                               structure declaration, we arent
X                                               any more */
X
X            if ((!sp_sw || hd_type != forstmt) && ps.p_l_follow > 0)
X            {
X
X                /*
X                   This should be true iff there were unbalanced parens in the
X                   stmt.  It is a bit complicated, because the semicolon might
X                   be in a for stmt
X                */
X                diag(1, "Unbalanced parens");
X                ps.p_l_follow = 0;
X                if (sp_sw)
X                {                /* this is a check for a if, while, etc. with
X                                   unbalanced parens */
X                    sp_sw = false;
X                    parse(hd_type);    /* dont lose the if, or whatever */
X                }
X            }
X            *e_code++ = ';';
X            ps.want_blank = true;
X            ps.in_stmt = (ps.p_l_follow > 0);    /* we are no longer in the
X                                                   middle of a stmt */
X
X            if (!sp_sw)
X            {                    /* if not if for (;;) */
X                parse(semicolon);    /* let parser know about end of stmt */
X                force_nl = true;/* force newline after a end of stmt */
X            }
X            break;
X
X        case lbrace:            /* got a '{' */
X            ps.in_stmt = false;    /* dont indent the {} */
X            if (!ps.block_init)
X                force_nl = true;/* force other stuff on same line as '{' onto
X                                   new line */
X            else if (ps.block_init_level <= 0)
X                ps.block_init_level = 1;
X            else
X                ps.block_init_level++;
X
X            if (s_code != e_code && !ps.block_init)
X            {
X                if (btype_3 || !btype_2)
X                {
X                    dump_line();
X                    ps.want_blank = false;
X                }
X                else if (ps.in_parameter_declaration && !ps.in_or_st)
X                {
X                    ps.i_l_follow = 0;
X                    dump_line();
X                    ps.want_blank = false;
X                }
X            }
X            if (ps.in_parameter_declaration)
X                prefix_blankline_requested = 0;
X
X            if (ps.p_l_follow > 0)
X            {                    /* check for preceeding unbalanced parens */
X                diag(1, "Unbalanced parens");
X                ps.p_l_follow = 0;
X                if (sp_sw)
X                {                /* check for unclosed if, for, etc. */
X                    sp_sw = false;
X                    parse(hd_type);
X                    ps.ind_level = ps.i_l_follow;
X                }
X            }
X            if (btype_3)
X                ps.ind_stmt = true;
X            else if (s_code == e_code)
X                ps.ind_stmt = false;    /* dont put extra indentation on line
X                                           with '{' */
X            if (ps.in_decl && ps.in_or_st)
X            {                    /* this is either a structure declaration or an
X                                   init */
X                di_stack[ps.dec_nest++] = dec_ind;
X                /* ?        dec_ind = 0; */
X            }
X            else
X            {
X                ps.decl_on_line = false;    /* we cant be in the middle of a
X                                               declaration, so dont do special
X                                               indentation of comments */
X                if (blanklines_after_declarations_at_proctop
X                    && ps.in_parameter_declaration)
X                    postfix_blankline_requested = 1;
X                ps.in_parameter_declaration = 0;
X            }
X            dec_ind = 0;
X            parse(lbrace);        /* let parser know about this */
X            if (ps.want_blank)    /* put a blank before '{' if '{' is not at
X                                   start of line */
X                *e_code++ = ' ';
X            ps.want_blank = false;
X            *e_code++ = '{';
X            ps.just_saw_decl = 0;
X            break;
X
X        case rbrace:            /* got a '}' */
X            if (ps.p_stack[ps.tos] == decl && !ps.block_init)    /* semicolons can be
X                                                                   omitted in
X                                                                   declarations */
X                parse(semicolon);
X            if (ps.p_l_follow)
X            {                    /* check for unclosed if, for, else. */
X                diag(1, "Unbalanced parens");
X                ps.p_l_follow = 0;
X                sp_sw = false;
X            }
X            ps.just_saw_decl = 0;
X            ps.block_init_level--;
X            if (s_code != e_code && !ps.block_init)
X            {                    /* '}' must be first on line */
X                if (verbose)
X                    diag(0, "Line broken");
X                dump_line();
X            }
X            *e_code++ = '}';
X            ps.want_blank = true;
X            ps.in_stmt = ps.ind_stmt = false;
X            if (ps.dec_nest > 0)
X            {                    /* we are in multi-level structure declaration */
X                dec_ind = di_stack[--ps.dec_nest];
X                if (ps.dec_nest == 0 && !ps.in_parameter_declaration)
X                    ps.just_saw_decl = 2;
X                ps.in_decl = true;
X            }
X            prefix_blankline_requested = 0;
X            parse(rbrace);        /* let parser know about this */
X            ps.search_brace = cuddle_else && ps.p_stack[ps.tos] == ifhead
X                && ps.il[ps.tos] >= ps.ind_level;
X            if (ps.tos <= 1 && blanklines_after_procs && ps.dec_nest <= 0)
X                postfix_blankline_requested = 1;
X            if (btype_3 && ps.p_stack[ps.tos] == dohead)
X            {
X                if (verbose)
X                    diag(0, "Line broken");
X                dump_line();
X                ps.want_blank = false;
X            }
X            break;
X
X        case swstmt:            /* got keyword "switch" */
X            sp_sw = true;
X            hd_type = swstmt;    /* keep this for when we have seen the
X                                   expression */
X            goto copy_id;        /* go move the token into buffer */
X
X        case sp_paren:            /* token is if, while, for */
X            sp_sw = true;        /* the interesting stuff is done after the
X                                   expression is scanned */
X            hd_type = (*token == 'i' ? ifstmt :
X                       (*token == 'w' ? whilestmt : forstmt));
X
X            /*
X               remember the type of header for later use by parser
X            */
X            goto copy_id;        /* copy the token into line */
X
X        case sp_nparen:        /* got else, do */
X            ps.in_stmt = false;
X            if (*token == 'e')
X            {
X                if (e_code != s_code && (!cuddle_else || e_code[-1] != '}'))
X                {
X                    if (verbose)
X                        diag(0, "Line broken");
X                    dump_line();/* make sure this starts a line */
X                    ps.want_blank = false;
X                }
X                force_nl = true;/* also, following stuff must go onto new line */
X                last_else = 1;
X                parse(elselit);
X            }
X            else
X            {
X                if (e_code != s_code)
X                {                /* make sure this starts a line */
X                    if (verbose)
X                        diag(0, "Line broken");
X                    dump_line();
X                    ps.want_blank = false;
X                }
X                force_nl = true;/* also, following stuff must go onto new line */
X                last_else = 0;
X                parse(dolit);
X            }
X            goto copy_id;        /* move the token into line */
X
X        case decl:                /* we have a declaration type (int, register,
X                                   etc.) */
X            parse(decl);        /* let parser worry about indentation */
X            if (ps.last_token == rparen && ps.tos <= 1)
X            {
X                ps.in_parameter_declaration = 1;
X                if (s_code != e_code)
X                {
X                    dump_line();
X                    ps.want_blank = 0;
X                }
X            }
X            if (ps.in_parameter_declaration && ps.indent_parameters && ps.dec_nest == 0)
X            {
X                ps.ind_level = ps.i_l_follow = 1;
X                ps.ind_stmt = 0;
X            }
X            ps.in_or_st = true;    /* this might be a structure or initialization
X                                   declaration */
X            ps.in_decl = ps.decl_on_line = true;
X            if ( /* !ps.in_or_st && */ ps.dec_nest <= 0)
X                ps.just_saw_decl = 2;
X            prefix_blankline_requested = 0;
X            for (i = 0; token[i++];);    /* get length of token */
X
X            /*
X               dec_ind = e_code - s_code + (ps.decl_indent>i ? ps.decl_indent :
X               i);
X            */
X            dec_ind = ps.decl_indent > 0 ? ps.decl_indent : i;
X            goto copy_id;
X
X        case ident:            /* got an identifier or constant */
X            if (ps.in_decl)
X            {                    /* if we are in a declaration, we must indent
X                                   identifier */
X                if (ps.want_blank)
X                    *e_code++ = ' ';
X                ps.want_blank = false;
X                if (is_procname == 0 || !procnames_start_line)
X                {
X                    if (!ps.block_init)
X                        if (troff && !ps.dumped_decl_indent)
X                        {
X                            sprintf(e_code, "\n.De %dp+\200p\n", dec_ind * 7);
X                            ps.dumped_decl_indent = 1;
X                            e_code += strlen(e_code);
X                        }
X                        else
X                            while ((e_code - s_code) < dec_ind)
X                            {
X                                check_size(code);
X                                *e_code++ = ' ';
X                            }
X                }
X                else
X                {
X                    if (dec_ind && s_code != e_code)
X                        dump_line();
X                    dec_ind = 0;
X                    ps.want_blank = false;
X                }
X            }
X            else if (sp_sw && ps.p_l_follow == 0)
X            {
X                sp_sw = false;
X                force_nl = true;
X                ps.last_u_d = true;
X                ps.in_stmt = false;
X                parse(hd_type);
X            }
X    copy_id:
X            if (ps.want_blank)
X                *e_code++ = ' ';
X            if (troff && ps.its_a_keyword)
X            {
X                e_code = chfont(&bodyf, &keywordf, e_code);
X                for (t_ptr = token; *t_ptr; ++t_ptr)
X                {
X                    check_size(code);
X                    *e_code++ = keywordf.allcaps && islower(*t_ptr)
X                        ? (char) toupper(*t_ptr) : *t_ptr;
X                }
X                e_code = chfont(&keywordf, &bodyf, e_code);
X            }
X            else
X                for (t_ptr = token; *t_ptr; ++t_ptr)
X                {
X                    check_size(code);
X                    *e_code++ = *t_ptr;
X                }
X            ps.want_blank = true;
X            break;
X
X        case period:            /* treat a period kind of like a binary
X                                   operation */
X            *e_code++ = '.';    /* move the period into line */
X            ps.want_blank = false;    /* dont put a blank after a period */
X            break;
X
X        case comma:
X            ps.want_blank = (s_code != e_code);    /* only put blank after comma
X                                                   if comma does not start the
X                                                   line */
X            if (ps.in_decl && is_procname == 0 && !ps.block_init)
X                while ((e_code - s_code) < (dec_ind - 1))
X                {
X                    check_size(code);
X                    *e_code++ = ' ';
X                }
X
X            *e_code++ = ',';
X            if (ps.p_l_follow == 0)
X            {
X                if (ps.block_init_level <= 0)
X                    ps.block_init = 0;
X                if (break_comma && !ps.leave_comma)
X                    force_nl = true;
X            }
X            break;
X
X        case preesc:            /* got the character '#' */
X            if ((s_com != e_com) ||
X                (s_lab != e_lab) ||
X                (s_code != e_code))
X                dump_line();
X            *e_lab++ = '#';        /* move whole line to 'label' buffer */
X            {
X                int in_comment = 0;
X                int com_start = 0;
X                char quote = 0;
X                int com_end = 0;
X
X                while (*buf_ptr != '\n' || in_comment)
X                {
X                    check_size(lab);
X                    *e_lab = *buf_ptr++;
X                    if (buf_ptr >= buf_end)
X                        fill_buffer();
X                    switch (*e_lab++)
X                    {
X                    case BACKSLASH:
X                        if (troff)
X                            *e_lab++ = BACKSLASH;
X                        if (!in_comment)
X                        {
X                            *e_lab++ = *buf_ptr++;
X                            if (buf_ptr >= buf_end)
X                                fill_buffer();
X                        }
X                        break;
X                    case '/':
X                        if (*buf_ptr == '*' && !in_comment && !quote)
X                        {
X                            in_comment = 1;
X                            *e_lab++ = *buf_ptr++;
X                            com_start = e_lab - s_lab - 2;
X                        }
X                        else if (*buf_ptr == '/' && !in_comment && !quote)
X                        {
X                            in_comment = 2;
X                            *e_lab++ = *buf_ptr++;
X                            com_start = e_lab - s_lab - 2;
X                        }
X                        break;
X                    case '"':
X                        if (quote == '"')
X                            quote = 0;
X                        break;
X                    case '\'':
X                        if (quote == '\'')
X                            quote = 0;
X                        break;
X                    case '*':
X                        if (*buf_ptr == '/' && in_comment == 1)
X                        {
X                            in_comment = 0;
X                            *e_lab++ = *buf_ptr++;
X                            com_end = e_lab - s_lab;
X                        }
X                        break;
X                    case '\n':
X                        if (in_comment == 2)
X                        {
X                            in_comment = 0;
X                            --buf_ptr;    /* so while loop will exit */
X                            com_end = e_lab - s_lab;
X                        }
X                        break;
X                    }
X                }
X
X                while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
X                    e_lab--;
X                if (e_lab - s_lab == com_end && bp_save == 0)
X                {                /* comment on preprocessor line */
X                    if (sc_end == 0)    /* if this is the first comment, we
X                                           must set up the buffer */
X                        sc_end = &(save_com[0]);
X                    else
X                    {
X                        *sc_end++ = '\n';    /* add newline between comments */
X                        *sc_end++ = ' ';
X                        --line_no;
X                    }
X#ifdef BSD                        /* gst 24 Mar 89 */
X                    bcopy(s_lab + com_start, sc_end, com_end - com_start);
X#else
X                    memcpy(sc_end, s_lab + com_start, com_end - com_start);
X#endif
X                    sc_end += com_end - com_start;
X                    if (sc_end >= &save_com[sc_size])
X                        abort();
X                    e_lab = s_lab + com_start;
X                    while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
X                        e_lab--;
X                    bp_save = buf_ptr;    /* save current input buffer */
X                    be_save = buf_end;
X                    buf_ptr = save_com;    /* fix so that subsequent calls to lexi
X                                           will take tokens out of save_com */
X                    *sc_end++ = ' ';    /* add trailing blank, just in case */
X                    buf_end = sc_end;
X                    sc_end = 0;
X                }
X                *e_lab = '\0';    /* null terminate line */
X                ps.pcase = false;
X            }
X
X            if (strncmp(s_lab, "#if", 3) == 0)
X            {
X                if (blanklines_around_conditional_compilation)
X                {
X                    register c;
X
X                    prefix_blankline_requested++;
X                    while ((c = getc(input)) == '\n');
X                    ungetc(c, input);
X                }
X                if (ifdef_level < sizeof state_stack / sizeof state_stack[0])
X                {
X                    match_state[ifdef_level].tos = -1;
X                    state_stack[ifdef_level++] = ps;
X                }
X                else
X                    diag(1, "#if stack overflow");
X            }
X            else if (strncmp(s_lab, "#else", 5) == 0)
X                if (ifdef_level <= 0)
X                    diag(1, "Unmatched #else");
X                else
X                {
X                    match_state[ifdef_level - 1] = ps;
X                    ps = state_stack[ifdef_level - 1];
X                }
X            else if (strncmp(s_lab, "#endif", 6) == 0)
X            {
X                if (ifdef_level <= 0)
X                    diag(1, "Unmatched #endif");
X                else
X                {
X                    ifdef_level--;
X
X#ifdef undef
X                    /*
X                       This match needs to be more intelligent before the
X                       message is useful
X                    */
X                    if (match_state[ifdef_level].tos >= 0
X                        && bcmp(&ps, &match_state[ifdef_level], sizeof ps))
X                        diag(0, "Syntactically inconsistant #ifdef alternatives.");
X#endif
X                }
X                if (blanklines_around_conditional_compilation)
X                {
X                    postfix_blankline_requested++;
X                    n_real_blanklines = 0;
X                }
X            }
X            break;                /* subsequent processing of the newline
X                                   character will cause the line to be printed */
X
X        case cc_commnt:        /* we have gotten a //  this is a biggie */
X        case comment:            /* we have gotten a /*  this is a biggie */
X
X            if (flushed_nl)
X            {                    /* we should force a broken line here */
X                flushed_nl = false;
X                dump_line();
X                ps.want_blank = false;    /* dont insert blank at line start */
X                force_nl = false;
X            }
X            pr_comment();
X            /*
X               pr_comment()'s parsing sequence for a C++ comment is quite
X               different from that for a standard comment and without the next
X               statement a C++ comment causes the next line to be formatted
X               with an extra blank space before the code or to be preceded by
X               an extra blank line.       jrs 12 Mar 92
X            */
X            if (type_code == cc_commnt)    /* jrs 12 Mar 92 */
X                force_nl = ps.want_blank = false;    /* jrs 12 Mar 92 */
X            break;
X        }                        /* end of big switch stmt */
X
X        *e_code = '\0';            /* make sure code section is null terminated */
X        if (type_code != comment && type_code != newline && type_code != preesc && type_code != cc_commnt)
X            ps.last_token = type_code;
X    }                            /* end of main while (1) loop */
X};
X
X/*
X * copy input file to backup file if in_name is /blah/blah/blah/file, then
X * backup file will be ".Bfile" then make the backup file the input and
X * original input file the output
X */
X#ifdef ANSIC
Xstatic void bakcopy(void)
X#else
Xbakcopy()
X#endif
X{
X#ifdef MSDOS                    /* or OS/2 */
X    int fat = 0;                /* File system type = FAT? */
X    char *q;
X
X#endif
X    int n, bakchn;
X
X/*  char        buff[8 * 1024];        Ouch!  Such a big stack!
X    Let's allocate a buffer from the heap instead .... jrs 12 Mar 92 */
X
X    char *buff;
X
X# define COPY_BUFFER_SIZE 8*1024
X    register char *p;
X
X    if ((buff = (char *)malloc(COPY_BUFFER_SIZE)) == NULL)
X    {
X        fprintf(stderr, "indent: no memory for backup file copy buffer");
X        exit(1);
X    }
X
X    /* construct file name .Bfile */
X
X#ifdef MSDOS                    /* or OS/2 */
X# ifndef M_I386                    /* then must be OS/2 1.x or MSDOS */
X#   define DosQueryFSAttach(a,b,c,d,e) DosQFSAttach(a,b,c,(BYTE *)d,e,0L)
X#   define DosQueryCurrentDisk DosQCurDisk
X#   define PARAM_T USHORT
X
X    DosGetMachineMode(&buff[0]);
X    if (buff[0] == MODE_REAL)    /* DOS can only handle FAT */
X        fat = 1;
X# else
X#   define PARAM_T ULONG
X# endif
X
X    if (!fat)
X    {
X        PARAM_T DriveNumber, cbData;
X        ULONG DriveMap;
X        struct fsqb
X        {
X# ifdef M_I386
X            FSQBUFFER2 bData;
X# else
X            FSQBUFFER bData;
X# endif
X            BYTE filler[60];
X        }
X            fsq;
X
X        cbData = sizeof fsq;
X        if (isalpha(in_name[0]) && in_name[1] == ':')
X            DriveNumber = toupper(in_name[0]) - '@';
X        else
X            DosQueryCurrentDisk(&DriveNumber, &DriveMap);
X
X        if (DosQueryFSAttach(NULL, DriveNumber, FSAIL_DRVNUMBER,
X                             &fsq.bData, &cbData))
X            fat = 0;
X        else
X            fat = !strcmp(&fsq.bData.szFSDName[fsq.bData.cbName], "FAT");
X    }
X
X    for (p = strcpy(bakfile, in_name); *p; ++p);    /* skip to end of string */
X    while (p > bakfile && *p != '/' && *p != '\\')
X        p--;
X    if (*p == '/' || *p == '\\')
X        p++;
X    if (fat && (q = strchr(p, '.')) != NULL)
X        *q = '\0';
X    strcat(bakfile, ".BAK");
X
X#else                            /* it isn't MSDOS or OS/2 */
X
X    for (p = in_name; *p; p++);    /* skip to end of string */
X    while (p > in_name && *p != '/')    /* find last '/' */
X        p--;
X    if (*p == '/')
X        p++;
X
X    sprintf(bakfile, "%s.BAK", p);
X
X#endif
X
X    /* copy in_name to backup file */
X    bakchn = creat(bakfile, 0600);
X    if (bakchn < 0)
X    {
X        fprintf(stderr, "indent: can't create backup file \"%s\"\n", bakfile);
X        exit(1);
X    }
X    while (n = read(fileno(input), buff, COPY_BUFFER_SIZE))
X        if (write(bakchn, buff, n) != n)
X        {
X            fprintf(stderr, "indent: error writing backup file \"%s\"\n",
X                    bakfile);
X            exit(1);
X        }
X    if (n < 0)
X    {
X        fprintf(stderr, "indent: error reading input file \"%s\"\n", in_name);
X        exit(1);
X    }
X    close(bakchn);
X    fclose(input);
X
X    free(buff);
X
X    /* re-open backup file as the input file */
X    input = fopen(bakfile, "r");
X    if (input == NULL)
X    {
X        fprintf(stderr, "indent: can't re-open backup file\n");
X        exit(1);
X    }
X    /* now the original input file will be the output */
X    output = fopen(in_name, "w");
X    if (output == NULL)
X    {
X        fprintf(stderr, "indent: can't create %s\n", in_name);
X        unlink(bakfile);
X        exit(1);
X    }
X}
SHAR_EOF
if test 40490 -ne "`wc -c indent.c`"
then
echo shar: error transmitting indent.c '(should have been 40490 characters)'
fi
echo shar: extracting io.c
sed 's/^X//' << \SHAR_EOF > io.c
X/*
X * Copyright 1989 Object Design, Inc.
X * Copyright (c) 1985 Sun Microsystems, Inc.
X * Copyright (c) 1980 The Regents of the University of California.
X * Copyright (c) 1976 Board of Trustees of the University of Illinois.
X * All rights reserved.
X *
X * Redistribution and use in source and binary forms are permitted
X * provided that the above copyright notice and this paragraph are
X * duplicated in all such forms and that any documentation,
X * advertising materials, and other materials related to such
X * distribution and use acknowledge that the software was developed
X * by the University of California, Berkeley, the University of Illinois,
X * Urbana, and Sun Microsystems, Inc.  The name of either University
X * or Sun Microsystems may not be used to endorse or promote products
X * derived from this software without specific prior written permission.
X * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
X * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
X * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
X */
X
X#ifndef lint
Xstatic char sccsid[] = "@(#)io.c    5.10 (Berkeley) 88/09/15";
X
X#endif                            /* not lint */
X
X#include "globals.h"
X#include <ctype.h>
X
X#ifdef MSDOS                    /* or OS/2 */
X#include <string.h>
X#include <process.h>
X#define bzero(achBuf, cbLength) memset(achBuf, 0, cbLength)
X#endif
X
Xint comment_open;
Xstatic paren_target;
X
X#ifdef ANSIC
X#include <stdarg.h>
Xstatic int pad_output(int, int);
X
X#endif
X
X#ifdef ANSIC
Xvoid dump_line(void)
X#else
Xdump_line(void)
X#endif
X{                                /* dump_line is the routine that actually
X                                   effects the printing of the new source. It
X                                   prints the label section, followed by the
X                                   code section with the appropriate nesting
X                                   level, followed by any comments */
X    register int cur_col, target_col;
X    static not_first_line;
X
X    if (ps.procname[0])
X    {
X        if (troff)
X        {
X            if (comment_open)
X            {
X                comment_open = 0;
X                fprintf(output, ".*/\n");
X            }
X            fprintf(output, ".Pr \"%s\"\n", ps.procname);
X        }
X        ps.ind_level = 0;
X        ps.procname[0] = 0;
X    }
X    if (s_code == e_code && s_lab == e_lab && s_com == e_com)
X    {
X        if (suppress_blanklines > 0)
X            suppress_blanklines--;
X        else
X        {
X            ps.bl_line = true;
X            n_real_blanklines++;
X        }
X    }
X    else if (!inhibit_formatting)
X    {
X        suppress_blanklines = 0;
X        ps.bl_line = false;
X        if (prefix_blankline_requested && not_first_line)
X            if (swallow_optional_blanklines)
X            {
X                if (n_real_blanklines == 1)
X                    n_real_blanklines = 0;
X            }
X            else
X            {
X                if (n_real_blanklines == 0)
X                    n_real_blanklines = 1;
X            }
X        while (--n_real_blanklines >= 0)
X            putc('\n', output);
X        n_real_blanklines = 0;
X        if (ps.ind_level == 0)
X        {
X            if (!btype_3)
X                ps.ind_stmt = 0;/* this is a class A kludge. dont do additional
X                                   statement indentation if we are at bracket
X                                   level 0 */
X            else if (*s_code != '{')
X                ps.ind_stmt = 0;/* this one is a class AA kludge: defeat the
X                                   class A kludge if the statement is '{' */
X        }
X
X        if (e_lab != s_lab || e_code != s_code)
X            ++code_lines;        /* keep count of lines with code */
X
X
X        if (e_lab != s_lab)
X        {                        /* print lab, if any */
X            if (comment_open)
X            {
X                comment_open = 0;
X                fprintf(output, ".*/\n");
X            }
X            while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
X                e_lab--;
X            cur_col = pad_output(1, compute_label_target());
X            fprintf(output, "%.*s", e_lab - s_lab, s_lab);
X            cur_col = count_spaces(cur_col, s_lab);
X        }
X        else
X            cur_col = 1;        /* there is no label section */
X
X        ps.pcase = false;
X
X        if (s_code != e_code)
X        {                        /* print code section, if any */
X            register char *p;
X
X            if (comment_open)
X            {
X                comment_open = 0;
X                fprintf(output, ".*/\n");
X            }
X            target_col = compute_code_target();
X            {
X                register i;
X
X                for (i = 0; i < ps.p_l_follow; i++)
X                    if (ps.paren_indents[i] >= 0)
X                        ps.paren_indents[i] = -(short) (ps.paren_indents[i] + target_col);
X            }
X            cur_col = pad_output(cur_col, target_col);
X            for (p = s_code; p < e_code; p++)
X                if (*p == (char) 0200)
X                    fprintf(output, "%d", target_col * 7);
X                else
X                    putc(*p, output);
X            cur_col = count_spaces(cur_col, s_code);
X        }
X        if (s_com != e_com)
X            if (troff)
X            {
X                int all_here = 0;
X                register char *p;
X
X                if (ps.cc_comment)
X                    all_here++;
X                else if (e_com[-1] == '/' && e_com[-2] == '*')
X                    e_com -= 2, all_here++;
X                while (e_com > s_com && e_com[-1] == ' ')
X                    e_com--;
X                *e_com = 0;
X                p = s_com;
X                while (*p == ' ')
X                    p++;
X                if (p[0] == '/' && (p[1] == '*' || p[1] == '/'))
X                    p += 2, all_here++;
X                else if (p[0] == '*')
X                    p += p[1] == '/' ? 2 : 1;
X                while (*p == ' ')
X                    p++;
X                if (*p == 0)
X                    goto inhibit_newline;
X                if (comment_open < 2 && ps.box_com)
X                {
X                    comment_open = 0;
X                    fprintf(output, ".*/\n");
X                }
X                if (comment_open == 0)
X                {
X                    if ('a' <= *p && *p <= 'z')
X                        *p += 'A' - 'a';
X                    if (e_com - p < 50 && all_here == 2)
X                    {
X                        register char *follow = p;
X
X                        fprintf(output, "\n.nr C! \\w\1");
X                        while (follow < e_com)
X                        {
X                            switch (*follow)
X                            {
X                            case '\n':
X                                putc(' ', output);
X                            case 1:
X                                break;
X                            case '\\':
X                                putc('\\', output);
X                            default:
X                                putc(*follow, output);
X                            }
X                            follow++;
X                        }
X                        putc(1, output);
X                    }
X                    fprintf(output, "\n./* %dp %d %dp\n",
X                            ps.com_col * 7,
X                            (s_code != e_code || s_lab != e_lab) - ps.box_com,
X                            target_col * 7);
X                }
X                comment_open = 1 + ps.box_com;
X                while (*p)
X                {
X                    if (*p == BACKSLASH)
X                        putc(BACKSLASH, output);
X                    putc(*p++, output);
X                }
X            }
X            else
X            {                    /* print comment, if any */
X                register target = ps.com_col;
X                register char *com_st = s_com;
X
X                target += ps.comment_delta;
X                while (*com_st == '\t')
X                    com_st++, target += tabsize;    /* JHT 22oct89 */
X                while (target <= 0)
X                    if (*com_st == ' ')
X                        target++, com_st++;
X                    else if (*com_st == '\t')
X                    {
X                        target += (tabsize - ((target - 1) % tabsize));    /* JHT 22oct89 */
X                        com_st++;
X                    }
X                    else
X                        target = 1;
X                if (cur_col > target)
X                {                /* if comment cant fit on this line, put it on
X                                   next line */
X                    putc('\n', output);
X                    cur_col = 1;
X                    ++ps.out_lines;
X                }
X                while (e_com > com_st && isspace(e_com[-1]))
X                    e_com--;
X                cur_col = pad_output(cur_col, target);
X                if (!ps.box_com && !ps.cc_comment)
X                {
X                    if (star_comment_cont && (com_st[1] != '*' || e_com <= com_st + 1))
X                        if (com_st[1] == ' ' && com_st[0] == ' ' && e_com > com_st + 1)
X                            com_st[1] = '*';
X                        else
X                            fwrite(" * ", com_st[0] == '\t' ? 2 : com_st[0] == '*' ? 1 : 3, 1, output);
X                }
X                fwrite(com_st, e_com - com_st, 1, output);
X                ps.comment_delta = ps.n_comment_delta;
X                cur_col = count_spaces(cur_col, com_st);
X                ++ps.com_lines;    /* count lines with comments */
X            }
X        if (ps.use_ff)
X            putc('\014', output);
X        else
X            putc('\n', output);
Xinhibit_newline:
X        ++ps.out_lines;
X        if (ps.just_saw_decl == 1 && blanklines_after_declarations)
X        {
X            prefix_blankline_requested = 1;
X            ps.just_saw_decl = 0;
X        }
X        else
X            prefix_blankline_requested = postfix_blankline_requested;
X        postfix_blankline_requested = 0;
X    }
X    ps.decl_on_line = ps.in_decl;    /* if we are in the middle of a
X                                       declaration, remember that fact for
X                                       proper comment indentation */
X    ps.ind_stmt = ps.in_stmt & ~ps.in_decl;    /* next line should be indented if
X                                               we have not completed this stmt
X                                               and if we are not in the middle
X                                               of a declaration */
X    ps.use_ff = false;
X    ps.dumped_decl_indent = 0;
X    *(e_lab = s_lab) = '\0';    /* reset buffers */
X    *(e_code = s_code) = '\0';
X    *(e_com = s_com) = '\0';
X    ps.ind_level = ps.i_l_follow;
X    ps.paren_level = ps.p_l_follow;
X    paren_target = -ps.paren_indents[ps.paren_level - 1];
X    not_first_line = 1;
X    return;
X};
X
X#ifdef ANSIC
Xint compute_code_target(void)
X#else
Xcompute_code_target()
X#endif
X{
X    register target_col = ps.ind_size * ps.ind_level + 1;
X
X    if (ps.paren_level)
X        if (!lineup_to_parens)
X            target_col += continuation_indent * ps.paren_level;
X        else
X        {
X            register w;
X            register t = paren_target;
X
X            if ((w = count_spaces(t, s_code) - max_col) > 0
X                && count_spaces(target_col, s_code) <= max_col)
X            {
X                t -= w + 1;
X                if (t > target_col)
X                    target_col = t;
X            }
X            else
X                target_col = t;
X        }
X    else if (ps.ind_stmt)
X        target_col += continuation_indent;
X    return target_col;
X}
X
X#ifdef ANSIC
Xint compute_label_target(void)
X#else
Xcompute_label_target()
X#endif
X{
X    return
X        ps.pcase ?
X        (cplus && ps.in_decl) ? cplus_ppp_indent
X        : (int) (case_ind * ps.ind_size) + 1
X        : *s_lab == '#' ? 1
X        : ps.ind_size * (ps.ind_level - label_offset) + 1;
X}
X
X
X/*
X * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
X *
X * All rights reserved
X *
X *
X * NAME: fill_buffer
X *
X * FUNCTION: Reads one block of input into input_buffer
X *
X * HISTORY: initial coding     November 1976    D A Willcox of CAC 1/7/77 A
X * Willcox of CAC    Added check for switch back to partly full input
X * buffer from temporary buffer
X *
X */
X#ifdef ANSIC
Xvoid fill_buffer(void)
X#else
Xfill_buffer()
X#endif
X{                                /* this routine reads stuff from the input */
X    register char *p;
X    register int i;
X    register FILE *f = input;
X
X    if (bp_save != 0)
X    {                            /* there is a partly filled input buffer left */
X        buf_ptr = bp_save;        /* dont read anything, just switch buffers */
X        buf_end = be_save;
X        bp_save = be_save = 0;
X        if (buf_ptr < buf_end)
X            return;                /* only return if there is really something in
X                                   this buffer */
X    }
X    for (p = buf_ptr = in_buffer; p < &in_buffer[inp_bufs];)
X    {
X        if ((i = getc(f)) == EOF)
X        {
X            *p++ = ' ';
X            *p++ = '\n';
X            if (p >= &in_buffer[inp_bufs])
X            {
X                diag (1, "Internal buffer overflow - Line is too long.");
X                fflush (output);
X                exit (1);
X            }
X            had_eof = true;
X            break;
X        }
X        *p++ = (char) i;
X        if (i == '\n')
X            break;
X    }
X    buf_end = p;
X    if (p[-2] == '/' && p[-3] == '*')
X    {
X        if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
X            fill_buffer();        /* flush indent error message */
X        else
X        {
X            int com = 0;
X
X            p = in_buffer;
X            while (*p == ' ' || *p == '\t')
X                p++;
X            if (*p == '/' && p[1] == '*')
X            {
X                p += 2;
X                while (*p == ' ' || *p == '\t')
X                    p++;
X                if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
X                    && p[4] == 'N' && p[5] == 'T')
X                {
X                    p += 6;
X                    if (*p == ':')
X                    {
X#define MAX_SOURCE_ARG 100
X                        char argbuf[MAX_SOURCE_ARG];    /* how big can they get
X                                                           ...  */
X                        char *a;
X
X                        p++;    /* skip the : */
X                        /*
X                           since set_option changes flags, process pending
X                           stuff now
X                        */
X                        if (s_com != e_com || s_lab != e_lab || s_code != e_code)
X                            dump_line();
X                        while (1)
X                        {
X                            a = argbuf;    /* accumulate an option */
X                            while (*p <= ' ')    /* skip whitespace */
X                                p++;
X                            if (*p == '*')
X                                break;
X                            while (*p > ' ')
X                                *a++ = *p++;
X                            *a++ = '\0';
X                            set_option(argbuf);
X                        }
X                        goto End_Magic_Comment;
X                    }
X                    while (*p == ' ' || *p == '\t')
X                        p++;
X                    if (*p == '*')
X                        com = 1;
X                    else if (*p == 'O')
X                        if (*++p == 'N')
X                            p++, com = 1;
X                        else if (*p == 'F' && *++p == 'F')
X                            p++, com = 2;
X                    while (*p == ' ' || *p == '\t')
X                        p++;
X                    if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com)
X                    {
X                        if (s_com != e_com || s_lab != e_lab || s_code != e_code)
X                            dump_line();
X                        if (!(inhibit_formatting = com - 1))
X                        {
X                            n_real_blanklines = 0;
X                            postfix_blankline_requested = 0;
X                            prefix_blankline_requested = 0;
X                            suppress_blanklines = 1;
X                        }
X                    }
X                }
X            }
X        }
X    }
XEnd_Magic_Comment:
X    if (inhibit_formatting)
X    {
X        p = in_buffer;
X        do
X            putc(*p, output);
X        while (*p++ != '\n');
X    }
X    return;
X};
X
X/*
X * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
X *
X * All rights reserved
X *
X *
X * NAME: pad_output
X *
X * FUNCTION: Writes tabs and spaces to move the current column up to the desired
X * position.
X *
X * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
X *
X * PARAMETERS: current        integer        The current column target
X * nteger        The desired column
X *
X * RETURNS: Integer value of the new column.  (If current >= target, no action is
X * taken, and current is returned.
X *
X * GLOBALS: None
X *
X * CALLS: write (sys)
X *
X * CALLED BY: dump_line
X *
X * HISTORY: initial coding     November 1976    D A Willcox of CAC
X *
X */
X
X#ifdef ANSIC
Xint pad_output(int current, int target)
X#else
Xpad_output(current, target)
X    int current;                /* the current column value */
X    int target;                    /* position we want it at */
X
X#endif
X /*
X    writes tabs and blanks (if necessary) to get the current output position up
X    to the target column
X */
X{
X    register int tstop;            /* Current tab stop being visited */
X
X    if (troff)
X        fprintf(output, "\\h'|%dp'", (target - 1) * 7);
X    else
X    {
X        if (current >= target)
X            return (current);    /* line is already long enough */
X        /* Compute where next tab stop lies: */
X
X        tstop = current + tabsize - ((current - 1) % tabsize);
X
X        for (; tstop <= target; tstop += tabsize)
X            putc('\t', output);    /* Tab to each tabstop */
X
X        tstop -= tabsize;        /* Account for overshoot */
X
X        while (tstop++ < target)
X            putc(' ', output);    /* Space over to where we want to be */
X    }
X    return (target);
X};
X
X/*
X * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
X *
X * All rights reserved
X *
X *
X * NAME: count_spaces
X *
X * FUNCTION: Find out where printing of a given string will leave the current
X * character position on output.
X *
X * ALGORITHM: Run thru input string and add appropriate values to current
X * position.
X *
X * RETURNS: Integer value of position after printing "buffer" starting in column
X * "current".
X *
X * HISTORY: initial coding     November 1976    D A Willcox of CAC
X *
X */
X
X#ifdef ANSIC
Xint count_spaces(int current, char *buffer)
X#else
Xint count_spaces(current, buffer)
X    int current;
X    char *buffer;
X
X#endif
X/*
X * this routine figures out where the character position will be after
X * printing the text in buffer starting at column "current"
X */
X{
X    register char *buf;            /* used to look thru buffer */
X    register int cur;            /* current character counter */
X
X    cur = current;
X
X    for (buf = buffer; *buf != '\0'; ++buf)
X    {
X        switch (*buf)
X        {
X
X        case '\n':
X        case 014:                /* form feed */
X            cur = 1;
X            break;
X
X        case '\t':
X            cur = cur + (tabsize - ((cur - 1) % tabsize));
X            break;
X
X        case '\b':                /* this is a backspace */
X            --cur;
X            break;
X
X        default:
X            ++cur;
X            break;
X        }                        /* end of switch */
X    }                            /* end of for loop */
X    return (cur);
X};
X
Xint found_err;
X
X#ifdef ANSIC
Xvoid diag(int level, char *msg,...)
X{
X    va_list
X        a;
X
X    va_start(a, msg);
X    if (level)
X        found_err = 1;
X    if (output == stdout)
X    {
X        fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
X        vfprintf(stdout, msg, a);
X        fprintf(stdout, " */\n");
X    }
X    else
X    {
X        fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
X        vfprintf(stderr, msg, a);
X        fprintf(stderr, "\n");
X    }
X}
X
X#else
Xdiag(level, msg, a, b)
X{
X    if (level)
X        found_err = 1;
X    if (output == stdout)
X    {
X        fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
X        fprintf(stdout, msg, a, b);
X        fprintf(stdout, " */\n");
X    }
X    else
X    {
X        fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
X        fprintf(stderr, msg, a, b);
X        fprintf(stderr, "\n");
X    }
X}
X
X#endif
X
X#ifdef ANSIC
Xvoid writefdef(struct fstate * f, int nm)
X#else
Xwritefdef(f, nm)
X    register struct fstate *f;
X
X#endif
X{
X    fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
X            nm, f->font, nm, f->size);
X}
X
X#ifdef ANSIC
Xchar *chfont(struct fstate * of, struct fstate * nf, char *s)
X#else
Xchar *
X    chfont(of, nf, s)
X    register struct fstate *of, *nf;
X    char *s;
X
X#endif
X{
X    if (of->font[0] != nf->font[0]
X        || of->font[1] != nf->font[1])
X    {
X        *s++ = '\\';
X        *s++ = 'f';
X        if (nf->font[1])
X        {
X            *s++ = '(';
X            *s++ = nf->font[0];
X            *s++ = nf->font[1];
X        }
X        else
X            *s++ = nf->font[0];
X    }
X    if (nf->size != of->size)
X    {
X        *s++ = '\\';
X        *s++ = 's';
X        if (nf->size < of->size)
X        {
X            *s++ = '-';
X            *s++ = (char) ('0' + of->size - nf->size);
X        }
X        else
X        {
X            *s++ = '+';
X            *s++ = (char) ('0' + nf->size - of->size);
X        }
X    }
X    return s;
X}
X
X#ifdef ANSIC
Xvoid parsefont(register struct fstate * f, char *s0)
X#else
Xparsefont(f, s0)
X    register struct fstate *f;
X    char *s0;
X
X#endif
X{
X    register char *s = s0;
X    int sizedelta = 0;
X
X    bzero(f, sizeof *f);
X    while (*s)
X    {
X        if (isdigit(*s))
X            f->size = (char) (f->size * 10 + *s - '0');
X        else if (isupper(*s))
X            if (f->font[0])
X                f->font[1] = *s;
X            else
X                f->font[0] = *s;
X        else if (*s == 'c')
X            f->allcaps = 1;
X        else if (*s == '+')
X            sizedelta++;
X        else if (*s == '-')
X            sizedelta--;
X        else
X        {
X            fprintf(stderr, "indent: bad font specification: %s\n", s0);
X            exit(1);
X        }
X        s++;
X    }
X    if (f->font[0] == 0)
X        f->font[0] = 'R';
X    if (bodyf.size == 0)
X        bodyf.size = 11;
X    if (f->size == 0)
X        f->size = (char) (bodyf.size + sizedelta);
X    else if (sizedelta > 0)
X        f->size += bodyf.size;
X    else
X        f->size = bodyf.size - f->size;
X}
SHAR_EOF
if test 17143 -ne "`wc -c io.c`"
then
echo shar: error transmitting io.c '(should have been 17143 characters)'
fi
#    End of shell archive
exit 0