tic.c

ncurses 库 可能有用酒用 没用就算了 我觉得还可以用

/****************************************************************************
 * Copyright (c) 1998-2004,2005 Free Software Foundation, Inc.              *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <[e-mail]> 1992,1995               *
 *     and: Eric S. Raymond <[e-mail]>                         *
 *     and: Thomas E. Dickey 1996 on                                        *
 ****************************************************************************/

/*
 *	tic.c --- Main program for terminfo compiler
 *			by Eric S. Raymond
 *
 */

#include <progs.priv.h>
#include <sys/stat.h>

#include <dump_entry.h>
#include <transform.h>

MODULE_ID("$Id: tic.c,v 1.125 2005/09/25 00:39:43 tom Exp $")

const char *_nc_progname = "tic";

static FILE *log_fp;
static FILE *tmp_fp;
static bool capdump = FALSE;	/* running as infotocap? */
static bool infodump = FALSE;	/* running as captoinfo? */
static bool showsummary = FALSE;
static const char *to_remove;

static void (*save_check_termtype) (TERMTYPE *, bool);
static void check_termtype(TERMTYPE *tt, bool);

static const char usage_string[] = "\
[-e names] \
[-o dir] \
[-R name] \
[-v[n]] \
[-V] \
[-w[n]] \
[-\
1\
a\
C\
c\
f\
G\
g\
I\
L\
N\
r\
s\
T\
t\
U\
x\
] \
source-file\n";

static void
cleanup(void)
{
    if (tmp_fp != 0)
	fclose(tmp_fp);
    if (to_remove != 0) {
#if HAVE_REMOVE
	remove(to_remove);
#else
	unlink(to_remove);
#endif
    }
}

static void
failed(const char *msg)
{
    perror(msg);
    cleanup();
    ExitProgram(EXIT_FAILURE);
}

static void
usage(void)
{
    static const char *const tbl[] =
    {
	"Options:",
	"  -1         format translation output one capability per line",
#if NCURSES_XNAMES
	"  -a         retain commented-out capabilities (sets -x also)",
#endif
	"  -C         translate entries to termcap source form",
	"  -c         check only, validate input without compiling or translating",
	"  -e<names>  translate/compile only entries named by comma-separated list",
	"  -f         format complex strings for readability",
	"  -G         format %{number} to %'char'",
	"  -g         format %'char' to %{number}",
	"  -I         translate entries to terminfo source form",
	"  -L         translate entries to full terminfo source form",
	"  -N         disable smart defaults for source translation",
	"  -o<dir>    set output directory for compiled entry writes",
	"  -R<name>   restrict translation to given terminfo/termcap version",
	"  -r         force resolution of all use entries in source translation",
	"  -s         print summary statistics",
	"  -T         remove size-restrictions on compiled description",
#if NCURSES_XNAMES
	"  -t         suppress commented-out capabilities",
#endif
	"  -U         suppress post-processing of entries",
	"  -V         print version",
	"  -v[n]      set verbosity level",
	"  -w[n]      set format width for translation output",
#if NCURSES_XNAMES
	"  -x         treat unknown capabilities as user-defined",
#endif
	"",
	"Parameters:",
	"  <file>     file to translate or compile"
    };
    size_t j;

    fprintf(stderr, "Usage: %s %s\n", _nc_progname, usage_string);
    for (j = 0; j < SIZEOF(tbl); j++) {
	fputs(tbl[j], stderr);
	putc('\n', stderr);
    }
    ExitProgram(EXIT_FAILURE);
}

#define L_BRACE '{'
#define R_BRACE '}'
#define S_QUOTE '\'';

static void
write_it(ENTRY * ep)
{
    unsigned n;
    int ch;
    char *s, *d, *t;
    char result[MAX_ENTRY_SIZE];

    /*
     * Look for strings that contain %{number}, convert them to %'char',
     * which is shorter and runs a little faster.
     */
    for (n = 0; n < STRCOUNT; n++) {
	s = ep->tterm.Strings[n];
	if (VALID_STRING(s)
	    && strchr(s, L_BRACE) != 0) {
	    d = result;
	    t = s;
	    while ((ch = *t++) != 0) {
		*d++ = ch;
		if (ch == '\\') {
		    *d++ = *t++;
		} else if ((ch == '%')
			   && (*t == L_BRACE)) {
		    char *v = 0;
		    long value = strtol(t + 1, &v, 0);
		    if (v != 0
			&& *v == R_BRACE
			&& value > 0
			&& value != '\\'	/* FIXME */
			&& value < 127
			&& isprint((int) value)) {
			*d++ = S_QUOTE;
			*d++ = (int) value;
			*d++ = S_QUOTE;
			t = (v + 1);
		    }
		}
	    }
	    *d = 0;
	    if (strlen(result) < strlen(s))
		strcpy(s, result);
	}
    }

    _nc_set_type(_nc_first_name(ep->tterm.term_names));
    _nc_curr_line = ep->startline;
    _nc_write_entry(&ep->tterm);
}

static bool
immedhook(ENTRY * ep GCC_UNUSED)
/* write out entries with no use capabilities immediately to save storage */
{
#if !HAVE_BIG_CORE
    /*
     * This is strictly a core-economy kluge.  The really clean way to handle
     * compilation is to slurp the whole file into core and then do all the
     * name-collision checks and entry writes in one swell foop.  But the
     * terminfo master file is large enough that some core-poor systems swap
     * like crazy when you compile it this way...there have been reports of
     * this process taking *three hours*, rather than the twenty seconds or
     * less typical on my development box.
     *
     * So.  This hook *immediately* writes out the referenced entry if it
     * has no use capabilities.  The compiler main loop refrains from
     * adding the entry to the in-core list when this hook fires.  If some
     * other entry later needs to reference an entry that got written
     * immediately, that's OK; the resolution code will fetch it off disk
     * when it can't find it in core.
     *
     * Name collisions will still be detected, just not as cleanly.  The
     * write_entry() code complains before overwriting an entry that
     * postdates the time of tic's first call to write_entry().  Thus
     * it will complain about overwriting entries newly made during the
     * tic run, but not about overwriting ones that predate it.
     *
     * The reason this is a hook, and not in line with the rest of the
     * compiler code, is that the support for termcap fallback cannot assume
     * it has anywhere to spool out these entries!
     *
     * The _nc_set_type() call here requires a compensating one in
     * _nc_parse_entry().
     *
     * If you define HAVE_BIG_CORE, you'll disable this kluge.  This will
     * make tic a bit faster (because the resolution code won't have to do
     * disk I/O nearly as often).
     */
    if (ep->nuses == 0) {
	int oldline = _nc_curr_line;

	write_it(ep);
	_nc_curr_line = oldline;
	free(ep->tterm.str_table);
	return (TRUE);
    }
#endif /* HAVE_BIG_CORE */
    return (FALSE);
}

static void
put_translate(int c)
/* emit a comment char, translating terminfo names to termcap names */
{
    static bool in_name = FALSE;
    static size_t have, used;
    static char *namebuf, *suffix;

    if (in_name) {
	if (used + 1 >= have) {
	    have += 132;
	    namebuf = typeRealloc(char, have, namebuf);
	    suffix = typeRealloc(char, have, suffix);
	}
	if (c == '\n' || c == '@') {
	    namebuf[used++] = '\0';
	    (void) putchar('<');
	    (void) fputs(namebuf, stdout);
	    putchar(c);
	    in_name = FALSE;
	} else if (c != '>') {
	    namebuf[used++] = c;
	} else {		/* ah! candidate name! */
	    char *up;
	    NCURSES_CONST char *tp;

	    namebuf[used++] = '\0';
	    in_name = FALSE;

	    suffix[0] = '\0';
	    if ((up = strchr(namebuf, '#')) != 0
		|| (up = strchr(namebuf, '=')) != 0
		|| ((up = strchr(namebuf, '@')) != 0 && up[1] == '>')) {
		(void) strcpy(suffix, up);
		*up = '\0';
	    }

	    if ((tp = nametrans(namebuf)) != 0) {
		(void) putchar(':');
		(void) fputs(tp, stdout);
		(void) fputs(suffix, stdout);
		(void) putchar(':');
	    } else {
		/* couldn't find a translation, just dump the name */
		(void) putchar('<');
		(void) fputs(namebuf, stdout);
		(void) fputs(suffix, stdout);
		(void) putchar('>');
	    }
	}
    } else {
	used = 0;
	if (c == '<') {
	    in_name = TRUE;
	} else {
	    putchar(c);
	}
    }
}

/* Returns a string, stripped of leading/trailing whitespace */
static char *
stripped(char *src)
{
    while (isspace(UChar(*src)))
	src++;
    if (*src != '\0') {
	char *dst = strcpy((char *) malloc(strlen(src) + 1), src);
	size_t len = strlen(dst);
	while (--len != 0 && isspace(UChar(dst[len])))
	    dst[len] = '\0';
	return dst;
    }
    return 0;
}

static FILE *
open_input(const char *filename)
{
    FILE *fp = fopen(filename, "r");
    struct stat sb;

    if (fp == 0) {
	fprintf(stderr, "%s: Can't open %s\n", _nc_progname, filename);
	ExitProgram(EXIT_FAILURE);
    }
    if (fstat(fileno(fp), &sb) < 0
	|| (sb.st_mode & S_IFMT) != S_IFREG) {
	fprintf(stderr, "%s: %s is not a file\n", _nc_progname, filename);
	ExitProgram(EXIT_FAILURE);
    }
    return fp;
}

/* Parse the "-e" option-value into a list of names */
static const char **
make_namelist(char *src)
{
    const char **dst = 0;

    char *s, *base;
    unsigned pass, n, nn;
    char buffer[BUFSIZ];

    if (src == 0) {
	/* EMPTY */ ;
    } else if (strchr(src, '/') != 0) {		/* a filename */
	FILE *fp = open_input(src);

	for (pass = 1; pass <= 2; pass++) {
	    nn = 0;
	    while (fgets(buffer, sizeof(buffer), fp) != 0) {
		if ((s = stripped(buffer)) != 0) {
		    if (dst != 0)
			dst[nn] = s;
		    nn++;
		}
	    }
	    if (pass == 1) {
		dst = typeCalloc(const char *, nn + 1);
		rewind(fp);
	    }
	}
	fclose(fp);
    } else {			/* literal list of names */
	for (pass = 1; pass <= 2; pass++) {
	    for (n = nn = 0, base = src;; n++) {
		int mark = src[n];
		if (mark == ',' || mark == '\0') {
		    if (pass == 1) {
			nn++;
		    } else {
			src[n] = '\0';
			if ((s = stripped(base)) != 0)
			    dst[nn++] = s;
			base = &src[n + 1];
		    }
		}
		if (mark == '\0')
		    break;
	    }
	    if (pass == 1)
		dst = typeCalloc(const char *, nn + 1);
	}
    }
    if (showsummary) {
	fprintf(log_fp, "Entries that will be compiled:\n");
	for (n = 0; dst[n] != 0; n++)
	    fprintf(log_fp, "%u:%s\n", n + 1, dst[n]);
    }
    return dst;
}

static bool
matches(const char **needle, const char *haystack)
/* does entry in needle list match |-separated field in haystack? */
{
    bool code = FALSE;
    size_t n;

    if (needle != 0) {
	for (n = 0; needle[n] != 0; n++) {
	    if (_nc_name_match(haystack, needle[n], "|")) {
		code = TRUE;
		break;
	    }
	}
    } else
	code = TRUE;
    return (code);
}

static FILE *
open_tempfile(char *name)
{
    FILE *result = 0;
#if HAVE_MKSTEMP
    int fd = mkstemp(name);
    if (fd >= 0)
	result = fdopen(fd, "w");
#else
    if (tmpnam(name) != 0)
	result = fopen(name, "w");
#endif
    return result;
}

int
main(int argc, char *argv[])
{
    char my_tmpname[PATH_MAX];
    int v_opt = -1, debug_level;
    int smart_defaults = TRUE;
    char *termcap;
    ENTRY *qp;

    int this_opt, last_opt = '?';

    int outform = F_TERMINFO;	/* output format */
    int sortmode = S_TERMINFO;	/* sort_mode */

    int width = 60;
    bool formatted = FALSE;	/* reformat complex strings? */
    bool literal = FALSE;	/* suppress post-processing? */
    int numbers = 0;		/* format "%'char'" to/from "%{number}" */
    bool forceresolve = FALSE;	/* force resolution */
    bool limited = TRUE;
    char *tversion = (char *) NULL;
    const char *source_file = "terminfo";
    const char **namelst = 0;
    char *outdir = (char *) NULL;
    bool check_only = FALSE;
    bool suppress_untranslatable = FALSE;

    log_fp = stderr;

    _nc_progname = _nc_rootname(argv[0]);

    if ((infodump = (strcmp(_nc_progname, PROG_CAPTOINFO) == 0)) != FALSE) {
	outform = F_TERMINFO;
	sortmode = S_TERMINFO;
    }
    if ((capdump = (strcmp(_nc_progname, PROG_INFOTOCAP) == 0)) != FALSE) {
	outform = F_TERMCAP;
	sortmode = S_TERMCAP;
    }
#if NCURSES_XNAMES
    use_extended_names(FALSE);
#endif

    /*
     * Processing arguments is a little complicated, since someone made a
     * design decision to allow the numeric values for -w, -v options to
     * be optional.
     */
    while ((this_opt = getopt(argc, argv,
			      "0123456789CILNR:TUVace:fGgo:rstvwx")) != EOF) {
	if (isdigit(this_opt)) {
	    switch (last_opt) {