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mirror of https://git.zap.org.au/git/trader.git synced 2024-12-04 14:46:45 -05:00

Move error handling into vprepstr(), to save doing it over and over

This commit is contained in:
John Zaitseff 2011-08-13 08:17:30 +10:00
parent 06b66716cf
commit c50b8a4649
2 changed files with 54 additions and 95 deletions

View File

@ -390,10 +390,7 @@ void init_title (void)
}
lines = prepstr(chbuf, BUFSIZE, attr_game_title, 0, 0, 1, COLS,
&width, 1, "%s", _("Star Traders"));
if (lines < 0) {
errno_exit("init_title");
}
&width, 1, _("Star Traders"));
pr_center(stdscr, 0, 0, chbuf, lines, &width);
attrset(attr_root_window);
@ -604,10 +601,6 @@ int txdlgbox (int maxlines, int ncols, int begin_y, int begin_x,
ncols - 4, widthbuf, maxlines, format, args);
va_end(args);
if (lines < 0) {
errno_exit(_("txdlgbox: `%s'"), format);
}
newtxwin(usetitle ? lines + 6 : lines + 5, ncols, begin_y, begin_x,
true, bkgd_attr);
@ -621,15 +614,9 @@ int txdlgbox (int maxlines, int ncols, int begin_y, int begin_x,
err_exit_nomem();
}
titlelines = prepstr(titlebuf, BUFSIZE, title_attr, bkgd_attr,
norm_attr, 1, ncols - 4, &titlewidth, 1,
"%s", boxtitle);
if (titlelines < 0) {
errno_exit(_("txdlgbox: `%s'"), boxtitle);
}
titlelines = prepstr(titlebuf, BUFSIZE, title_attr, 0, 0, 1,
ncols - 4, &titlewidth, 1, boxtitle);
pr_center(curwin, 1, 0, titlebuf, titlelines, &titlewidth);
free(titlebuf);
}
@ -790,8 +777,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
case '^':
// Switch to a different character rendition
if (*format == '\0') {
errno = EINVAL;
return -1;
goto error_inval;
} else {
format++;
}
@ -800,8 +786,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
case '%':
// Process a conversion specifier
if (*format == '\0') {
errno = EINVAL;
return -1;
goto error_inval;
} else if (*format == '%') {
format++;
} else {
@ -816,10 +801,8 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
switch (c) {
case '0':
// Zero flag, or part of numeric count
if (count == 0) {
errno = EINVAL;
return -1;
}
if (count == 0)
goto error_inval;
count *= 10;
break;
@ -839,14 +822,12 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
case '$':
// Fixed-position argument
if (flag_posn || count == 0) {
errno = EINVAL;
return -1;
}
if (flag_posn || count == 0)
goto error_inval;
if (count > MAXFMTARGS) {
errno = E2BIG;
return -1;
goto error;
}
flag_posn = true;
@ -860,10 +841,8 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
case 'l':
// Long length modifier
if (flag_long) {
errno = EINVAL;
return -1;
}
if (flag_long)
goto error_inval;
flag_long = true;
break;
@ -875,34 +854,29 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
case 'N':
// Insert a monetary amount (double)
if (flag_long) {
errno = EINVAL;
return -1;
}
if (flag_long)
goto error_inval;
arg_type = TYPE_DOUBLE;
goto handlefmt;
case 's':
// Insert a string (const char *)
if (flag_long) {
errno = EINVAL;
return -1;
}
if (flag_long)
goto error_inval;
arg_type = TYPE_STRING;
handlefmt:
if (arg_num >= MAXFMTARGS) {
errno = E2BIG;
return -1;
goto error;
}
if (format_arg[arg_num].a_type == TYPE_NONE) {
format_arg[arg_num].a_type = arg_type;
} else if (format_arg[arg_num].a_type != arg_type) {
errno = EINVAL;
return -1;
goto error_inval;
}
arg_num++;
@ -912,13 +886,11 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
break;
default:
errno = EINVAL;
return -1;
goto error_inval;
}
}
if (inspec) {
errno = EINVAL;
return -1;
goto error_inval;
}
}
break;
@ -951,8 +923,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
/* Cannot allow unused arguments, as we have no way of
knowing how much space they take (cf. int vs. long long
int). */
errno = EINVAL;
return -1;
goto error_inval;
}
}
@ -972,8 +943,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
case '^':
// Switch to a different character rendition
if (*++format == '\0') {
errno = EINVAL;
return -1;
goto error_inval;
} else {
switch (*format) {
case '^':
@ -981,7 +951,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
maxwidth, &line, &width, &lastspc,
&widthspc, widthbuf, widthbufsize,
&format) < 0) {
return -1;
goto error;
}
break;
@ -1002,8 +972,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
break;
default:
errno = EINVAL;
return -1;
goto error_inval;
}
}
break;
@ -1011,13 +980,12 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
case '%':
// Process a conversion specifier
if (*++format == '\0') {
errno = EINVAL;
return -1;
goto error_inval;
} else if (*format == '%') {
if (prepstr_addch(&chbuf, &chbufsize, curattr, maxlines,
maxwidth, &line, &width, &lastspc, &widthspc,
widthbuf, widthbufsize, &format) < 0) {
return -1;
goto error;
}
} else {
bool inspec = true;
@ -1040,8 +1008,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
if (count == 0) {
// Zero flag is not supported
free(buf);
errno = EINVAL;
return -1;
goto error_inval;
}
count *= 10;
@ -1064,14 +1031,13 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
// Fixed-position argument
if (flag_posn || count == 0) {
free(buf);
errno = EINVAL;
return -1;
goto error_inval;
}
if (count > MAXFMTARGS) {
free(buf);
errno = E2BIG;
return -1;
goto error;
}
flag_posn = true;
@ -1083,8 +1049,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
// Use locale-specific thousands separator
if (flag_thou) {
free(buf);
errno = EINVAL;
return -1;
goto error_inval;
}
flag_thou = true;
@ -1094,8 +1059,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
// Long length modifier
if (flag_long) {
free(buf);
errno = EINVAL;
return -1;
goto error_inval;
}
flag_long = true;
@ -1105,14 +1069,13 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
// Insert an integer (int or long int) into the output
if (count != 0) {
free(buf);
errno = EINVAL;
return -1;
goto error_inval;
}
if (arg_num >= MAXFMTARGS) {
free(buf);
errno = E2BIG;
return -1;
goto error;
}
if (flag_long) {
@ -1121,7 +1084,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
saved_errno = errno;
free(buf);
errno = saved_errno;
return -1;
goto error;
}
} else {
if (snprintf(buf, BUFSIZE, flag_thou ? "%'d" : "%d",
@ -1129,7 +1092,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
saved_errno = errno;
free(buf);
errno = saved_errno;
return -1;
goto error;
}
}
@ -1140,14 +1103,13 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
// Insert a monetary amount (double) into the output
if (count != 0 || flag_thou || flag_long) {
free(buf);
errno = EINVAL;
return -1;
goto error_inval;
}
if (arg_num >= MAXFMTARGS) {
free(buf);
errno = E2BIG;
return -1;
goto error;
}
if (l_strfmon(buf, BUFSIZE, "%n",
@ -1155,7 +1117,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
saved_errno = errno;
free(buf);
errno = saved_errno;
return -1;
goto error;
}
str = buf;
@ -1165,14 +1127,13 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
// Insert a string (const char *) into the output
if (count != 0 || flag_thou || flag_long) {
free(buf);
errno = EINVAL;
return -1;
goto error_inval;
}
if (arg_num >= MAXFMTARGS) {
free(buf);
errno = E2BIG;
return -1;
goto error;
}
str = format_arg[arg_num].a.a_string;
@ -1191,7 +1152,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
saved_errno = errno;
free(buf);
errno = saved_errno;
return -1;
goto error;
}
}
@ -1201,14 +1162,12 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
default:
free(buf);
errno = EINVAL;
return -1;
goto error_inval;
}
}
free(buf);
if (inspec) {
errno = EINVAL;
return -1;
goto error_inval;
}
}
break;
@ -1218,7 +1177,7 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
if (prepstr_addch(&chbuf, &chbufsize, curattr, maxlines, maxwidth,
&line, &width, &lastspc, &widthspc, widthbuf,
widthbufsize, &format) < 0) {
return -1;
goto error;
}
}
}
@ -1232,6 +1191,13 @@ int vprepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
}
return line + 1;
error_inval:
errno = EINVAL;
error:
errno_exit(_("prepstr: `%s'"), orig_format);
}
@ -2507,12 +2473,10 @@ void wait_for_key (WINDOW *win, int y, chtype attr)
chtype *chbuf;
int width;
int lines;
int key;
bool done;
keypad(win, true);
meta(win, true);
wtimeout(win, -1);
@ -2524,10 +2488,6 @@ void wait_for_key (WINDOW *win, int y, chtype attr)
lines = prepstr(chbuf, BUFSIZE, attr, 0, 0, 1, getmaxx(win) - 4,
&width, 1, _("[ Press <SPACE> to continue ] "));
if (lines < 0) {
errno_exit("wait_for_key");
}
pr_center(win, y, 0, chbuf, lines, &width);
wrefresh(win);

View File

@ -299,7 +299,7 @@ extern int txdlgbox (int maxlines, int ncols, int begin_y, int begin_x,
widthbufsize - Number of int elements in widthbuf
format - Format string as described below
... - Arguments for the format string
Returns: int - Number of lines actually used, or -1 on error
Returns: int - Number of lines actually used
This function converts the format string and following arguments into
chbuf, a chtype buffer that can be used for calls to pr_left(),
@ -350,8 +350,7 @@ extern int txdlgbox (int maxlines, int ncols, int begin_y, int begin_x,
multibyte characters may be split over two lines.
This function returns the actual number of lines used (from 0 to
maxlines), or -1 on error (with errno set to EINVAL for an invalid
format conversion specifier or argument).
maxlines). If an error is detected, the application terminates.
*/
extern int prepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
chtype attr_alt1, chtype attr_alt2, int maxlines,
@ -372,7 +371,7 @@ extern int prepstr (chtype *restrict chbuf, int chbufsize, chtype attr_norm,
widthbufsize - Number of int elements in widthbuf
format - Format string as described for prepstr()
args - Variable argument list
Returns: int - Number of lines actually used, or -1 on error
Returns: int - Number of lines actually used
This function is exactly the same as prepstr(), except that it is
called with a va_list parameter args instead of a variable number of