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in display_string(), display invalid multibyte sequences as Unicode

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0xFFFD (Replacement Character)


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2819 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
David Lawrence Ramsey 2005-07-06 19:12:41 +00:00
parent ec01074075
commit 9838a5182e
2 changed files with 40 additions and 22 deletions
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4
ChangeLog
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@ -33,6 +33,10 @@ CVS code -
do_replace()
- Blank out last_replace properly again just before displaying
the "Replace" prompt. (DLR, found by Mike Frysinger)
- winio.c:
display_string()
- Display invalid multibyte sequences as Unicode 0xFFFD
(Replacement Character). (DLR)
- configure.ac:
- Since we only use vsnprintf() now, remove the tests for
snprintf(). (DLR)

58
src/winio.c
View File

@ -2265,10 +2265,18 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
/* The string we return. */
size_t index;
/* Current position in converted. */
bool bad_char;
/* Whether we have an invalid multibyte character. */
#ifdef NANO_WIDE
const char *bad_buf_mb = "\xEF\xBF\xBD";
/* What to display when we have an invalid multibyte
* character: Unicode 0xFFFD (Replacement Character). */
const int bad_buf_mb_len = 3;
/* The length of bad_buf_mb. */
#endif
char *buf_mb = charalloc(mb_cur_max());
int buf_mb_len;
bool bad_char;
/* If dollars is TRUE, make room for the "$" at the end of the
* line. */
@ -2329,6 +2337,7 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
buf_mb_len = parse_mbchar(buf + start_index, buf_mb, &bad_char,
NULL);
/* If buf contains a tab character, interpret it. */
if (*buf_mb == '\t') {
#if !defined(NANO_SMALL) && defined(ENABLE_NANORC)
if (ISSET(WHITESPACE_DISPLAY)) {
@ -2344,25 +2353,38 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
converted[index++] = ' ';
start_col++;
}
/* If buf contains a control character, interpret it. If it
* contains an invalid multibyte control character, interpret
* that character as though it's a normal control character. */
/* If buf contains a control character, interpret it. */
} else if (is_cntrl_mbchar(buf_mb)) {
char *ctrl_buf_mb = charalloc(mb_cur_max());
int ctrl_buf_mb_len, i;
int i;
converted[index++] = '^';
start_col++;
ctrl_buf_mb = control_mbrep(buf_mb, ctrl_buf_mb,
&ctrl_buf_mb_len);
#ifdef NANO_WIDE
/* If buf contains an invalid multibyte control character,
* display it as such. */
if (ISSET(USE_UTF8) && bad_char) {
for (i = 0; i < bad_buf_mb_len; i++)
converted[index++] = bad_buf_mb[i];
for (i = 0; i < ctrl_buf_mb_len; i++)
converted[index++] = ctrl_buf_mb[i];
start_col += mbwidth(bad_buf_mb);
} else
#endif
{
char *ctrl_buf_mb = charalloc(mb_cur_max());
int ctrl_buf_mb_len;
start_col += mbwidth(ctrl_buf_mb);
ctrl_buf_mb = control_mbrep(buf_mb, ctrl_buf_mb,
&ctrl_buf_mb_len);
free(ctrl_buf_mb);
for (i = 0; i < ctrl_buf_mb_len; i++)
converted[index++] = ctrl_buf_mb[i];
start_col += mbwidth(ctrl_buf_mb);
free(ctrl_buf_mb);
}
/* If buf contains a space character, interpret it. */
} else if (*buf_mb == ' ') {
#if !defined(NANO_SMALL) && defined(ENABLE_NANORC)
if (ISSET(WHITESPACE_DISPLAY)) {
@ -2375,26 +2397,18 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
#endif
converted[index++] = ' ';
start_col++;
/* If buf contains a non-control character, interpret it. */
} else {
int i;
#ifdef NANO_WIDE
/* If buf contains an invalid multibyte non-control
* character, interpret that character as though it's a
* normal non-control character. */
* character, display it as such. */
if (ISSET(USE_UTF8) && bad_char) {
char *bad_buf_mb;
int bad_buf_mb_len;
bad_buf_mb = make_mbchar((unsigned char)*buf_mb,
&bad_buf_mb_len);
for (i = 0; i < bad_buf_mb_len; i++)
converted[index++] = bad_buf_mb[i];
start_col += mbwidth(bad_buf_mb);
free(bad_buf_mb);
} else {
#endif
for (i = 0; i < buf_mb_len; i++)