925 lines
23 KiB
C
925 lines
23 KiB
C
/* infokey.c -- compile ~/.infokey to ~/.info.
|
||
$Id: infokey.c,v 1.9 2004/12/14 00:15:36 karl Exp $
|
||
|
||
Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 2, or (at your option)
|
||
any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
||
Written by Andrew Bettison <andrewb@zip.com.au>. */
|
||
|
||
#include "info.h"
|
||
#include "infomap.h"
|
||
#include "infokey.h"
|
||
#include "key.h"
|
||
#include "getopt.h"
|
||
|
||
static char *program_name = "infokey";
|
||
|
||
/* Non-zero means print version info only. */
|
||
static int print_version_p = 0;
|
||
|
||
/* Non-zero means print a short description of the options. */
|
||
static int print_help_p = 0;
|
||
|
||
/* String specifying the source file. This is set by the user on the
|
||
command line, or a default is used. */
|
||
static char *input_filename = (char *) NULL;
|
||
|
||
/* String specifying the name of the file to output to. This is
|
||
set by the user on the command line, or a default is used. */
|
||
static char *output_filename = (char *) NULL;
|
||
|
||
/* Structure describing the options that Infokey accepts. We pass this
|
||
structure to getopt_long (). If you add or otherwise change this
|
||
structure, you must also change the string which follows it. */
|
||
static struct option long_options[] =
|
||
{
|
||
{"output", 1, 0, 'o'},
|
||
{"help", 0, &print_help_p, 1},
|
||
{"version", 0, &print_version_p, 1},
|
||
{NULL, 0, NULL, 0}
|
||
};
|
||
|
||
/* String describing the shorthand versions of the long options found above. */
|
||
static char *short_options = "o:";
|
||
|
||
/* Structure for holding the compiled sections. */
|
||
enum sect_e
|
||
{
|
||
info = 0,
|
||
ea = 1,
|
||
var = 2
|
||
};
|
||
struct sect
|
||
{
|
||
unsigned int cur;
|
||
unsigned char data[INFOKEY_MAX_SECTIONLEN];
|
||
};
|
||
|
||
/* Some "forward" declarations. */
|
||
static char *mkpath (const char *dir, const char *file);
|
||
static int compile (FILE *fp, const char *filename, struct sect *sections);
|
||
static int write_infokey_file (FILE *fp, struct sect *sections);
|
||
static void syntax_error (const char *filename,
|
||
unsigned int linenum, const char *fmt,
|
||
const void *a1, const void *a2, const void *a3, const void *a4);
|
||
static void error_message (int error_code, const char *fmt,
|
||
const void *a1, const void *a2, const void *a3, const void *a4);
|
||
static void suggest_help (void);
|
||
static void short_help (void);
|
||
|
||
|
||
/* **************************************************************** */
|
||
/* */
|
||
/* Main Entry Point to the Infokey Program */
|
||
/* */
|
||
/* **************************************************************** */
|
||
|
||
int
|
||
main (int argc, char **argv)
|
||
{
|
||
int getopt_long_index; /* Index returned by getopt_long (). */
|
||
|
||
#ifdef HAVE_SETLOCALE
|
||
/* Set locale via LC_ALL. */
|
||
setlocale (LC_ALL, "");
|
||
#endif
|
||
|
||
#ifdef ENABLE_NLS
|
||
/* Set the text message domain. */
|
||
bindtextdomain (PACKAGE, LOCALEDIR);
|
||
textdomain (PACKAGE);
|
||
#endif
|
||
|
||
while (1)
|
||
{
|
||
int option_character;
|
||
|
||
option_character = getopt_long
|
||
(argc, argv, short_options, long_options, &getopt_long_index);
|
||
|
||
/* getopt_long () returns EOF when there are no more long options. */
|
||
if (option_character == EOF)
|
||
break;
|
||
|
||
/* If this is a long option, then get the short version of it. */
|
||
if (option_character == 0 && long_options[getopt_long_index].flag == 0)
|
||
option_character = long_options[getopt_long_index].val;
|
||
|
||
/* Case on the option that we have received. */
|
||
switch (option_character)
|
||
{
|
||
case 0:
|
||
break;
|
||
|
||
/* User is specifying the name of a file to output to. */
|
||
case 'o':
|
||
if (output_filename)
|
||
free (output_filename);
|
||
output_filename = xstrdup (optarg);
|
||
break;
|
||
|
||
default:
|
||
suggest_help ();
|
||
xexit (1);
|
||
}
|
||
}
|
||
|
||
/* If the user specified --version, then show the version and exit. */
|
||
if (print_version_p)
|
||
{
|
||
printf ("%s (GNU %s) %s\n", program_name, PACKAGE, VERSION);
|
||
puts ("");
|
||
printf (_ ("Copyright (C) %s Free Software Foundation, Inc.\n\
|
||
There is NO warranty. You may redistribute this software\n\
|
||
under the terms of the GNU General Public License.\n\
|
||
For more information about these matters, see the files named COPYING.\n"),
|
||
"2003");
|
||
xexit (0);
|
||
}
|
||
|
||
/* If the `--help' option was present, show the help and exit. */
|
||
if (print_help_p)
|
||
{
|
||
short_help ();
|
||
xexit (0);
|
||
}
|
||
|
||
/* If there is one argument remaining, it is the name of the input
|
||
file. */
|
||
if (optind == argc - 1)
|
||
{
|
||
if (input_filename)
|
||
free (input_filename);
|
||
input_filename = xstrdup (argv[optind]);
|
||
}
|
||
else if (optind != argc)
|
||
{
|
||
error_message (0, _("incorrect number of arguments"),
|
||
NULL, NULL, NULL, NULL);
|
||
suggest_help ();
|
||
xexit (1);
|
||
}
|
||
|
||
/* Use default filenames where none given. */
|
||
{
|
||
char *homedir;
|
||
|
||
homedir = getenv ("HOME");
|
||
#ifdef __MSDOS__
|
||
if (!homedir)
|
||
homedir = ".";
|
||
#endif
|
||
if (!input_filename)
|
||
input_filename = mkpath (homedir, INFOKEY_SRCFILE);
|
||
if (!output_filename)
|
||
output_filename = mkpath (homedir, INFOKEY_FILE);
|
||
}
|
||
|
||
{
|
||
FILE *inf;
|
||
FILE *outf;
|
||
int write_error;
|
||
static struct sect sections[3];
|
||
|
||
/* Open the input file. */
|
||
inf = fopen (input_filename, "r");
|
||
if (!inf)
|
||
{
|
||
error_message (errno, _("cannot open input file `%s'"),
|
||
input_filename, NULL, NULL, NULL);
|
||
xexit (1);
|
||
}
|
||
|
||
/* Compile the input file to its verious sections, then write the
|
||
section data to the output file. */
|
||
|
||
if (compile (inf, input_filename, sections))
|
||
{
|
||
/* Open the output file. */
|
||
outf = fopen (output_filename, FOPEN_WBIN);
|
||
if (!outf)
|
||
{
|
||
error_message (errno, _("cannot create output file `%s'"),
|
||
output_filename, NULL, NULL, NULL);
|
||
xexit (1);
|
||
}
|
||
|
||
/* Write the contents of the output file and close it. If there is
|
||
an error writing to the file, delete it and exit with a failure
|
||
status. */
|
||
write_error = 0;
|
||
if (!write_infokey_file (outf, sections))
|
||
{
|
||
error_message (errno, _("error writing to `%s'"),
|
||
output_filename, NULL, NULL, NULL);
|
||
write_error = 1;
|
||
}
|
||
if (fclose (outf) == EOF)
|
||
{
|
||
error_message (errno, _("error closing output file `%s'"),
|
||
output_filename, NULL, NULL, NULL);
|
||
write_error = 1;
|
||
}
|
||
if (write_error)
|
||
{
|
||
unlink (output_filename);
|
||
xexit (1);
|
||
}
|
||
}
|
||
|
||
/* Close the input file. */
|
||
fclose (inf);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
static char *
|
||
mkpath (const char *dir, const char *file)
|
||
{
|
||
char *p;
|
||
|
||
p = xmalloc (strlen (dir) + 1 + strlen (file) + 2);
|
||
strcpy (p, dir);
|
||
strcat (p, "/");
|
||
strcat (p, file);
|
||
return p;
|
||
}
|
||
|
||
|
||
/* Compilation - the real work.
|
||
|
||
Source file syntax
|
||
------------------
|
||
The source file is a line-based text file with the following
|
||
structure:
|
||
|
||
# comments
|
||
# more comments
|
||
|
||
#info
|
||
u prev-line
|
||
d next-line
|
||
^a invalid # just beep
|
||
\ku prev-line
|
||
#stop
|
||
\kd next-line
|
||
q quit # of course!
|
||
|
||
#echo-area
|
||
^a echo-area-beg-of-line
|
||
^e echo-area-end-of-line
|
||
\kr echo-area-forward
|
||
\kl echo-area-backward
|
||
\kh echo-area-beg-of-line
|
||
\ke echo-area-end-of-line
|
||
|
||
#var
|
||
scroll-step=1
|
||
ISO-Latin=Off
|
||
|
||
Lines starting with '#' are comments, and are ignored. Blank
|
||
lines are ignored. Each section is introduced by one of the
|
||
following lines:
|
||
|
||
#info
|
||
#echo-area
|
||
#var
|
||
|
||
The sections may occur in any order. Each section may be
|
||
omitted completely. If the 'info' section is the first in the
|
||
file, its '#info' line may be omitted.
|
||
|
||
The 'info' and 'echo-area' sections
|
||
-----------------------------------
|
||
Each line in the 'info' or 'echo-area' sections has the
|
||
following syntax:
|
||
|
||
key-sequence SPACE action-name [ SPACE [ # comment ] ] \n
|
||
|
||
Where SPACE is one or more white space characters excluding
|
||
newline, "action-name" is the name of a GNU Info command,
|
||
"comment" is any sequence of characters excluding newline, and
|
||
"key-sequence" is a concatenation of one or more key definitions
|
||
using the following syntax:
|
||
|
||
1. A carat ^ followed by one character indicates a single
|
||
control character;
|
||
|
||
2. A backslash \ followed by one, two, or three octal
|
||
digits indicates a single character having that ASCII
|
||
code;
|
||
|
||
3. \n indicates a single NEWLINE;
|
||
\e indicates a single ESC;
|
||
\r indicates a single CR;
|
||
\t indicates a single TAB;
|
||
\b indicates a single BACKSPACE;
|
||
|
||
4. \ku indicates the Up Arrow key;
|
||
\kd indicates the Down Arrow key;
|
||
\kl indicates the Left Arrow key;
|
||
\kr indicates the Right Arrow key;
|
||
\kP indicates the Page Up (PRIOR) key;
|
||
\kN indicates the Page Down (NEXT) key;
|
||
\kh indicates the Home key;
|
||
\ke indicates the End key;
|
||
\kx indicates the DEL key;
|
||
\k followed by any other character indicates a single
|
||
control-K, and the following character is interpreted
|
||
as in rules 1, 2, 3, 5 and 6.
|
||
|
||
5. \m followed by any sequence defined in rules 1, 2, 3, 4
|
||
or 6 indicates the "Meta" modification of that key.
|
||
|
||
6. A backslash \ followed by any character not described
|
||
above indicates that character itself. In particular:
|
||
\\ indicates a single backslash \,
|
||
\ (backslash-space) indicates a single space,
|
||
\^ indicates a single caret ^,
|
||
|
||
If the following line:
|
||
|
||
#stop
|
||
|
||
occurs anywhere in an 'info' or 'echo-area' section, that
|
||
indicates to GNU Info to suppress all of its default key
|
||
bindings in that context.
|
||
|
||
The 'var' section
|
||
-----------------
|
||
Each line in the 'var' section has the following syntax:
|
||
|
||
variable-name = value \n
|
||
|
||
Where "variable-name" is the name of a GNU Info variable and
|
||
"value" is the value that GNU Info will assign to that variable
|
||
when commencing execution. There must be no white space in the
|
||
variable name, nor between the variable name and the '='. All
|
||
characters immediately following the '=', up to but not
|
||
including the terminating newline, are considered to be the
|
||
value that will be assigned. In other words, white space
|
||
following the '=' is not ignored.
|
||
*/
|
||
|
||
static int add_to_section (struct sect *s, const char *str, unsigned int len);
|
||
static int lookup_action (const char *actname);
|
||
|
||
/* Compile the input file into its various sections. Return true if no
|
||
error was encountered.
|
||
*/
|
||
static int
|
||
compile (FILE *fp, const char *filename, struct sect *sections)
|
||
{
|
||
int error = 0;
|
||
char rescan = 0;
|
||
unsigned int lnum = 0;
|
||
int c = 0;
|
||
|
||
/* This parser is a true state machine, with no sneaky fetching
|
||
of input characters inside the main loop. In other words, all
|
||
state is fully represented by the following variables:
|
||
*/
|
||
enum
|
||
{
|
||
start_of_line,
|
||
start_of_comment,
|
||
in_line_comment,
|
||
in_trailing_comment,
|
||
get_keyseq,
|
||
got_keyseq,
|
||
get_action,
|
||
got_action,
|
||
get_varname,
|
||
got_varname,
|
||
get_equals,
|
||
got_equals,
|
||
get_value
|
||
}
|
||
state = start_of_line;
|
||
enum sect_e section = info;
|
||
enum
|
||
{
|
||
normal,
|
||
slosh,
|
||
control,
|
||
octal,
|
||
special_key
|
||
}
|
||
seqstate; /* used if state == get_keyseq */
|
||
char meta = 0;
|
||
char ocnt = 0; /* used if state == get_keyseq && seqstate == octal */
|
||
|
||
/* Data is accumulated in the following variables. The code
|
||
avoids overflowing these strings, and throws an error
|
||
where appropriate if a string limit is exceeded. These string
|
||
lengths are arbitrary (and should be large enough) and their
|
||
lengths are not hard-coded anywhere else, so increasing them
|
||
here will not break anything. */
|
||
char oval = 0;
|
||
char comment[10];
|
||
unsigned int clen = 0;
|
||
char seq[20];
|
||
unsigned int slen = 0;
|
||
char act[80];
|
||
unsigned int alen = 0;
|
||
char varn[80];
|
||
unsigned int varlen = 0;
|
||
char val[80];
|
||
unsigned int vallen = 0;
|
||
|
||
#define To_seq(c) \
|
||
do { \
|
||
if (slen < sizeof seq) \
|
||
seq[slen++] = meta ? Meta(c) : (c); \
|
||
else \
|
||
{ \
|
||
syntax_error(filename, lnum, _("key sequence too long"), \
|
||
NULL, NULL, NULL, NULL); \
|
||
error = 1; \
|
||
} \
|
||
meta = 0; \
|
||
} while (0)
|
||
|
||
sections[info].cur = 1;
|
||
sections[info].data[0] = 0;
|
||
sections[ea].cur = 1;
|
||
sections[ea].data[0] = 0;
|
||
sections[var].cur = 0;
|
||
|
||
while (!error && (rescan || (c = fgetc (fp)) != EOF))
|
||
{
|
||
rescan = 0;
|
||
switch (state)
|
||
{
|
||
case start_of_line:
|
||
lnum++;
|
||
if (c == '#')
|
||
state = start_of_comment;
|
||
else if (c != '\n')
|
||
{
|
||
switch (section)
|
||
{
|
||
case info:
|
||
case ea:
|
||
state = get_keyseq;
|
||
seqstate = normal;
|
||
slen = 0;
|
||
break;
|
||
case var:
|
||
state = get_varname;
|
||
varlen = 0;
|
||
break;
|
||
}
|
||
rescan = 1;
|
||
}
|
||
break;
|
||
|
||
case start_of_comment:
|
||
clen = 0;
|
||
state = in_line_comment;
|
||
/* fall through */
|
||
case in_line_comment:
|
||
if (c == '\n')
|
||
{
|
||
state = start_of_line;
|
||
comment[clen] = '\0';
|
||
if (strcmp (comment, "info") == 0)
|
||
section = info;
|
||
else if (strcmp (comment, "echo-area") == 0)
|
||
section = ea;
|
||
else if (strcmp (comment, "var") == 0)
|
||
section = var;
|
||
else if (strcmp (comment, "stop") == 0
|
||
&& (section == info || section == ea))
|
||
sections[section].data[0] = 1;
|
||
}
|
||
else if (clen < sizeof comment - 1)
|
||
comment[clen++] = c;
|
||
break;
|
||
|
||
case in_trailing_comment:
|
||
if (c == '\n')
|
||
state = start_of_line;
|
||
break;
|
||
|
||
case get_keyseq:
|
||
switch (seqstate)
|
||
{
|
||
case normal:
|
||
if (c == '\n' || isspace (c))
|
||
{
|
||
state = got_keyseq;
|
||
rescan = 1;
|
||
if (slen == 0)
|
||
{
|
||
syntax_error (filename, lnum, _("missing key sequence"),
|
||
NULL, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
}
|
||
else if (c == '\\')
|
||
seqstate = slosh;
|
||
else if (c == '^')
|
||
seqstate = control;
|
||
else
|
||
To_seq (c);
|
||
break;
|
||
|
||
case slosh:
|
||
switch (c)
|
||
{
|
||
case '0': case '1': case '2': case '3':
|
||
case '4': case '5': case '6': case '7':
|
||
seqstate = octal;
|
||
oval = c - '0';
|
||
ocnt = 1;
|
||
break;
|
||
case 'b':
|
||
To_seq ('\b');
|
||
seqstate = normal;
|
||
break;
|
||
case 'e':
|
||
To_seq ('\033');
|
||
seqstate = normal;
|
||
break;
|
||
case 'n':
|
||
To_seq ('\n');
|
||
seqstate = normal;
|
||
break;
|
||
case 'r':
|
||
To_seq ('\r');
|
||
seqstate = normal;
|
||
break;
|
||
case 't':
|
||
To_seq ('\t');
|
||
seqstate = normal;
|
||
break;
|
||
case 'm':
|
||
meta = 1;
|
||
seqstate = normal;
|
||
break;
|
||
case 'k':
|
||
seqstate = special_key;
|
||
break;
|
||
default:
|
||
/* Backslash followed by any other char
|
||
just means that char. */
|
||
To_seq (c);
|
||
seqstate = normal;
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case octal:
|
||
switch (c)
|
||
{
|
||
case '0': case '1': case '2': case '3':
|
||
case '4': case '5': case '6': case '7':
|
||
if (++ocnt <= 3)
|
||
oval = oval * 8 + c - '0';
|
||
if (ocnt == 3)
|
||
seqstate = normal;
|
||
break;
|
||
default:
|
||
ocnt = 4;
|
||
seqstate = normal;
|
||
rescan = 1;
|
||
break;
|
||
}
|
||
if (seqstate != octal)
|
||
{
|
||
if (oval)
|
||
To_seq (oval);
|
||
else
|
||
{
|
||
syntax_error (filename, lnum,
|
||
_("NUL character (\\000) not permitted"),
|
||
NULL, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case special_key:
|
||
To_seq (SK_ESCAPE);
|
||
switch (c)
|
||
{
|
||
case 'u': To_seq (SK_UP_ARROW); break;
|
||
case 'd': To_seq (SK_DOWN_ARROW); break;
|
||
case 'r': To_seq (SK_RIGHT_ARROW); break;
|
||
case 'l': To_seq (SK_LEFT_ARROW); break;
|
||
case 'U': To_seq (SK_PAGE_UP); break;
|
||
case 'D': To_seq (SK_PAGE_DOWN); break;
|
||
case 'h': To_seq (SK_HOME); break;
|
||
case 'e': To_seq (SK_END); break;
|
||
case 'x': To_seq (SK_DELETE); break;
|
||
default: To_seq (SK_LITERAL); rescan = 1; break;
|
||
}
|
||
seqstate = normal;
|
||
break;
|
||
|
||
case control:
|
||
if (CONTROL (c))
|
||
To_seq (CONTROL (c));
|
||
else
|
||
{
|
||
syntax_error (filename, lnum,
|
||
(char *) _("NUL character (^%c) not permitted"),
|
||
(void *) (long) c, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
seqstate = normal;
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case got_keyseq:
|
||
if (isspace (c) && c != '\n')
|
||
break;
|
||
state = get_action;
|
||
alen = 0;
|
||
/* fall through */
|
||
case get_action:
|
||
if (c == '\n' || isspace (c))
|
||
{
|
||
int a;
|
||
|
||
state = got_action;
|
||
rescan = 1;
|
||
if (alen == 0)
|
||
{
|
||
syntax_error (filename, lnum, (char *) _("missing action name"),
|
||
(void *) (long) c, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
else
|
||
{
|
||
act[alen] = '\0';
|
||
a = lookup_action (act);
|
||
if (a != -1)
|
||
{
|
||
char av = a;
|
||
|
||
if (!(add_to_section (§ions[section], seq, slen)
|
||
&& add_to_section (§ions[section], "", 1)
|
||
&& add_to_section (§ions[section], &av, 1)))
|
||
{
|
||
syntax_error (filename, lnum, _("section too long"),
|
||
NULL, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
syntax_error (filename, lnum, _("unknown action `%s'"),
|
||
act, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
}
|
||
}
|
||
else if (alen < sizeof act - 1)
|
||
act[alen++] = c;
|
||
else
|
||
{
|
||
syntax_error (filename, lnum, _("action name too long"),
|
||
NULL, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
break;
|
||
|
||
case got_action:
|
||
if (c == '#')
|
||
state = in_trailing_comment;
|
||
else if (c == '\n')
|
||
state = start_of_line;
|
||
else if (!isspace (c))
|
||
{
|
||
syntax_error (filename, lnum,
|
||
_("extra characters following action `%s'"),
|
||
act, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
break;
|
||
|
||
case get_varname:
|
||
if (c == '=')
|
||
{
|
||
if (varlen == 0)
|
||
{
|
||
syntax_error (filename, lnum, _("missing variable name"),
|
||
NULL, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
state = get_value;
|
||
vallen = 0;
|
||
}
|
||
else if (c == '\n' || isspace (c))
|
||
{
|
||
syntax_error (filename, lnum,
|
||
_("missing `=' immediately after variable name"),
|
||
NULL, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
else if (varlen < sizeof varn)
|
||
varn[varlen++] = c;
|
||
else
|
||
{
|
||
syntax_error (filename, lnum, _("variable name too long"),
|
||
NULL, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
break;
|
||
|
||
case get_value:
|
||
if (c == '\n')
|
||
{
|
||
state = start_of_line;
|
||
if (!(add_to_section (§ions[section], varn, varlen)
|
||
&& add_to_section (§ions[section], "", 1)
|
||
&& add_to_section (§ions[section], val, vallen)
|
||
&& add_to_section (§ions[section], "", 1)))
|
||
{
|
||
syntax_error (filename, lnum, _("section too long"),
|
||
NULL, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
}
|
||
else if (vallen < sizeof val)
|
||
val[vallen++] = c;
|
||
else
|
||
{
|
||
syntax_error (filename, lnum, _("value too long"),
|
||
NULL, NULL, NULL, NULL);
|
||
error = 1;
|
||
}
|
||
break;
|
||
|
||
case get_equals:
|
||
case got_equals:
|
||
case got_varname:
|
||
break;
|
||
}
|
||
}
|
||
|
||
#undef To_seq
|
||
|
||
return !error;
|
||
}
|
||
|
||
/* Add some characters to a section's data. Return true if all the
|
||
characters fit, or false if the section's size limit was exceeded.
|
||
*/
|
||
static int
|
||
add_to_section (struct sect *s, const char *str, unsigned int len)
|
||
{
|
||
if (s->cur + len > sizeof s->data)
|
||
return 0;
|
||
strncpy ((char *) s->data + s->cur, str, len);
|
||
s->cur += len;
|
||
return 1;
|
||
}
|
||
|
||
/* Translate from an action name to its numeric code. This uses the
|
||
auto-generated array in key.c.
|
||
*/
|
||
static int
|
||
lookup_action (const char *actname)
|
||
{
|
||
int i;
|
||
|
||
if (strcmp ("invalid", actname) == 0)
|
||
return A_INVALID;
|
||
for (i = 0; function_key_array[i].name != NULL; i++)
|
||
if (strcmp (function_key_array[i].name, actname) == 0)
|
||
return function_key_array[i].code;
|
||
return -1;
|
||
}
|
||
|
||
/* Put an integer to an infokey file.
|
||
Integers are stored as two bytes, low order first,
|
||
in radix INFOKEY_RADIX.
|
||
*/
|
||
static int
|
||
putint (int i, FILE *fp)
|
||
{
|
||
return fputc (i % INFOKEY_RADIX, fp) != EOF
|
||
&& fputc ((i / INFOKEY_RADIX) % INFOKEY_RADIX, fp) != EOF;
|
||
}
|
||
|
||
/* Write an entire section to an infokey file. If the section is
|
||
empty, simply omit it.
|
||
*/
|
||
static int
|
||
putsect (struct sect *s, int code, FILE *fp)
|
||
{
|
||
if (s->cur == 0)
|
||
return 1;
|
||
return fputc (code, fp) != EOF
|
||
&& putint (s->cur, fp)
|
||
&& fwrite (s->data, s->cur, 1, fp) == 1;
|
||
}
|
||
|
||
/* Write an entire infokey file, given an array containing its sections.
|
||
*/
|
||
static int
|
||
write_infokey_file (FILE *fp, struct sect *sections)
|
||
{
|
||
/* Get rid of sections with no effect. */
|
||
if (sections[info].cur == 1 && sections[info].data[0] == 0)
|
||
sections[info].cur = 0;
|
||
if (sections[ea].cur == 1 && sections[ea].data[0] == 0)
|
||
sections[ea].cur = 0;
|
||
|
||
/* Write all parts of the file out in order (no lseeks),
|
||
checking for errors all the way. */
|
||
return fputc (INFOKEY_MAGIC_S0, fp) != EOF
|
||
&& fputc (INFOKEY_MAGIC_S1, fp) != EOF
|
||
&& fputc (INFOKEY_MAGIC_S2, fp) != EOF
|
||
&& fputc (INFOKEY_MAGIC_S3, fp) != EOF
|
||
&& fputs (VERSION, fp) != EOF
|
||
&& fputc ('\0', fp) != EOF
|
||
&& putsect (§ions[info], INFOKEY_SECTION_INFO, fp)
|
||
&& putsect (§ions[ea], INFOKEY_SECTION_EA, fp)
|
||
&& putsect (§ions[var], INFOKEY_SECTION_VAR, fp)
|
||
&& fputc (INFOKEY_MAGIC_E0, fp) != EOF
|
||
&& fputc (INFOKEY_MAGIC_E1, fp) != EOF
|
||
&& fputc (INFOKEY_MAGIC_E2, fp) != EOF
|
||
&& fputc (INFOKEY_MAGIC_E3, fp) != EOF;
|
||
}
|
||
|
||
|
||
/* Error handling. */
|
||
|
||
/* Give the user a "syntax error" message in the form
|
||
progname: "filename", line N: message
|
||
*/
|
||
static void
|
||
error_message (int error_code, const char *fmt,
|
||
const void *a1, const void *a2, const void *a3, const void *a4)
|
||
{
|
||
fprintf (stderr, "%s: ", program_name);
|
||
fprintf (stderr, fmt, a1, a2, a3, a4);
|
||
if (error_code)
|
||
fprintf (stderr, " - %s", strerror (error_code));
|
||
fprintf (stderr, "\n");
|
||
}
|
||
|
||
/* Give the user a generic error message in the form
|
||
progname: message
|
||
*/
|
||
static void
|
||
syntax_error (const char *filename,
|
||
unsigned int linenum, const char *fmt,
|
||
const void *a1, const void *a2, const void *a3, const void *a4)
|
||
{
|
||
fprintf (stderr, "%s: ", program_name);
|
||
fprintf (stderr, _("\"%s\", line %u: "), filename, linenum);
|
||
fprintf (stderr, fmt, a1, a2, a3, a4);
|
||
fprintf (stderr, "\n");
|
||
}
|
||
|
||
/* Produce a gentle rtfm. */
|
||
static void
|
||
suggest_help (void)
|
||
{
|
||
fprintf (stderr, _("Try --help for more information.\n"));
|
||
}
|
||
|
||
/* Produce a scaled down description of the available options to Info. */
|
||
static void
|
||
short_help (void)
|
||
{
|
||
printf (_("\
|
||
Usage: %s [OPTION]... [INPUT-FILE]\n\
|
||
\n\
|
||
Compile infokey source file to infokey file. Reads INPUT-FILE (default\n\
|
||
$HOME/.infokey) and writes compiled key file to (by default) $HOME/.info.\n\
|
||
\n\
|
||
Options:\n\
|
||
--output FILE output to FILE instead of $HOME/.info\n\
|
||
--help display this help and exit.\n\
|
||
--version display version information and exit.\n\
|
||
"), program_name);
|
||
|
||
puts (_("\n\
|
||
Email bug reports to bug-texinfo@gnu.org,\n\
|
||
general questions and discussion to help-texinfo@gnu.org.\n\
|
||
Texinfo home page: http://www.gnu.org/software/texinfo/"));
|
||
|
||
xexit (0);
|
||
}
|