# include <sys/time.h>
#endif
#include <time.h>
-#include <wctype.h>
-#include <wchar.h>
-
-#ifdef LBL
-struct msgs *fmt_current_folder; /* current folder (set by main program) */
+#ifdef MULTIBYTE_SUPPORT
+# include <wctype.h>
+# include <wchar.h>
#endif
-extern int fmt_norm; /* defined in sbr/fmt_def.c = AD_NAME */
struct mailname fmt_mnull = { NULL, NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0,
NULL, NULL };
#ifdef LOCALE
while ((c1 = *sub)) {
- c1 = (isalpha(c1) && isupper(c1)) ? tolower(c1) : c1;
- while ((c2 = *str++) && c1 != ((isalpha(c2) && isupper(c2)) ? tolower(c2) : c2))
+ c1 = (isascii((unsigned char) c1) && isalpha((unsigned char) c1) &&
+ isupper((unsigned char) c1)) ? tolower((unsigned char) c1) : c1;
+ while ((c2 = *str++) && c1 != ((isascii((unsigned char) c2) &&
+ isalpha((unsigned char) c2) &&
+ isupper((unsigned char) c2)) ?
+ tolower((unsigned char) c2) : c2))
;
if (! c2)
return 0;
s1 = sub + 1; s2 = str;
- while ((c1 = *s1++) && ((isalpha(c1) && isupper(c1)) ? tolower(c1) : c1) == ((isalpha(c2 =*s2++) && isupper(c2)) ? tolower(c2) : c2))
+ while ((c1 = *s1++) && ((isascii((unsigned char) c1) &&
+ isalpha((unsigned char) c1) &&
+ isupper((unsigned char) c1)) ?
+ tolower(c1) : c1) ==
+ ((isascii((unsigned char) (c2 =*s2++)) &&
+ isalpha((unsigned char) c2) &&
+ isupper((unsigned char) c2)) ?
+ tolower((unsigned char) c2) : c2))
;
if (! c1)
return 1;
* no more than n bytes are copied
*/
static void
-cptrimmed(char **dest, char *str, unsigned int wid, char fill, size_t n) {
+cptrimmed(char **dest, char **ep, char *str, unsigned int wid, char fill,
+ char *epmax) {
int remaining; /* remaining output width available */
int c, ljust;
int end; /* number of input bytes remaining in str */
+#ifdef MULTIBYTE_SUPPORT
int char_len; /* bytes in current character */
int w;
wchar_t wide_char;
+ char *altstr = NULL;
+#endif
char *sp; /* current position in source string */
char *cp = *dest; /* current position in destination string */
- char *ep = cp + n; /* end of destination buffer */
int prevCtrl = 1;
/* get alignment */
ljust++;
}
if ((sp = (str))) {
+#ifdef MULTIBYTE_SUPPORT
mbtowc(NULL, NULL, 0); /* reset shift state */
+#endif
end = strlen(str);
while (*sp && remaining > 0 && end > 0) {
+#ifdef MULTIBYTE_SUPPORT
char_len = mbtowc(&wide_char, sp, end);
- if (char_len <= 0 || (cp + char_len > ep))
+
+ /*
+ * See the relevant comments in cpstripped() to explain what's
+ * going on here; we want to handle the case where we get
+ * characters that mbtowc() cannot handle
+ */
+
+ if (char_len < 0) {
+ altstr = "?";
+ char_len = mbtowc(&wide_char, altstr, 1);
+ }
+
+ if (char_len <= 0)
+ break;
+
+ w = wcwidth(wide_char);
+
+ /*
+ * Multibyte characters can have a variable number of column
+ * widths, so use the column width to bump the end pointer when
+ * appropriate.
+ */
+ if (w >= 0 && char_len > 1 && epmax - *ep >= char_len - w) {
+ *ep += char_len - w;
+ }
+
+ if (w >= 0 && cp + w > *ep)
break;
end -= char_len;
if (iswcntrl(wide_char) || iswspace(wide_char)) {
sp += char_len;
+#else
+ int c;
+ end--;
+ /* isnctrl(), etc., take an int argument. Cygwin's ctype.h
+ intentionally warns if they are passed a char. */
+ c = (unsigned char) *sp;
+ if (iscntrl(c) || isspace(c)) {
+ sp++;
+#endif
if (!prevCtrl) {
*cp++ = ' ';
remaining--;
}
prevCtrl = 0;
- w = wcwidth(wide_char);
+#ifdef MULTIBYTE_SUPPORT
if (w >= 0 && remaining >= w) {
- strncpy(cp, sp, char_len);
+ strncpy(cp, altstr ? altstr : sp, char_len);
cp += char_len;
remaining -= w;
+ altstr = NULL;
}
sp += char_len;
+#else
+ *cp++ = *sp++;
+ remaining--;
+#endif
}
}
if (ljust) {
- if (cp + remaining > ep)
- remaining = ep - cp;
- ep = cp + remaining;
+ char *endfield;
+ if (cp + remaining > *ep)
+ remaining = *ep - cp;
+ endfield = cp + remaining;
if (remaining > 0) {
/* copy string to the right */
while (--cp >= *dest)
for (c=remaining; c>0; c--)
*cp-- = fill;
}
- *dest = ep;
+ *dest = endfield;
} else {
/* pad remaining space */
- while (remaining-- > 0 && cp < ep)
+ while (remaining-- > 0 && cp < *ep)
*cp++ = fill;
*dest = cp;
}
}
static void
-cpstripped (char **start, char *end, char *str)
+cpstripped (char **dest, char **end, char *max, char *str)
{
- int c;
- char *s = str;
+ int prevCtrl = 1; /* This is 1 so we strip out leading spaces */
+ int len;
+#ifdef MULTIBYTE_SUPPORT
+ int char_len, w;
+ wchar_t wide_char;
+ char *altstr = NULL;
+#endif /* MULTIBYTE_SUPPORT */
- if (!s)
+ if (!str)
return;
- /* skip any initial control characters or spaces */
- while ((c = (unsigned char) *s) &&
-#ifdef LOCALE
- (iscntrl(c) || isspace(c)))
-#else
- (c <= 32))
-#endif
- s++;
-
- /* compact repeated control characters and spaces into a single space */
- while((c = (unsigned char) *s++) && *start < end)
- if (!iscntrl(c) && !isspace(c))
- *(*start)++ = c;
- else {
- while ((c = (unsigned char) *s) &&
-#ifdef LOCALE
- (iscntrl(c) || isspace(c)))
-#else
- (c <= 32))
-#endif
- s++;
- *(*start)++ = ' ';
+ len = strlen(str);
+
+#ifdef MULTIBYTE_SUPPORT
+ mbtowc(NULL, NULL, 0); /* Reset shift state */
+#endif /* MULTIBYTE_SUPPORT */
+
+ /*
+ * Process each character at a time; if we have multibyte support
+ * then deal with that here.
+ */
+
+ while (*str != '\0' && len > 0 && *dest < *end) {
+#ifdef MULTIBYTE_SUPPORT
+ char_len = mbtowc(&wide_char, str, len);
+ w = wcwidth(wide_char);
+
+ /*
+ * Account for multibyte characters, and increment the end pointer
+ * by the number of "extra" bytes in this character. That's the
+ * character length (char_len) minus the column width (w).
+ */
+ if (w >= 0 && char_len > 1 && max - *end >= char_len - w) {
+ *end += char_len - w;
+ }
+
+ /*
+ * If mbrtowc() failed, then we have a character that isn't valid
+ * in the current encoding. Replace it with a '?'. We do that by
+ * setting the alstr variable to the value of the replacement string;
+ * altstr is used below when the bytes are copied into the output
+ * buffer.
+ */
+
+ if (char_len < 0) {
+ altstr = "?";
+ char_len = mbtowc(&wide_char, altstr, 1);
}
+
+ if (char_len <= 0 || *dest + char_len > *end)
+ break;
+
+ len -= char_len;
+
+ if (iswcntrl(wide_char) || iswspace(wide_char)) {
+ str += char_len;
+#else /* MULTIBYTE_SUPPORT */
+ int c = (unsigned char) *str;
+ len--;
+ if (iscntrl(c) || isspace(c)) {
+ str++;
+#endif /* MULTIBYTE_SUPPORT */
+ if (! prevCtrl) {
+ *(*dest)++ = ' ';
+ }
+
+ prevCtrl = 1;
+ continue;
+ }
+
+ prevCtrl = 0;
+
+#ifdef MULTIBYTE_SUPPORT
+ memcpy(*dest, altstr ? altstr : str, char_len);
+ str += char_len;
+ *dest += char_len;
+ altstr = NULL;
+#else /* MULTIBYE_SUPPORT */
+ *(*dest)++ = *str++
+#endif /* MULTIBYTE_SUPPORT */
+ }
}
static char *lmonth[] = { "January", "February","March", "April",
}
struct format *
-fmt_scan (struct format *format, char *scanl, int width, int *dat)
+fmt_scan (struct format *format, char *scanl, size_t max, int width, int *dat,
+ struct fmt_callbacks *callbacks)
{
- char *cp, *ep;
- unsigned char *sp;
- char *savestr = NULL;
- unsigned char *str = NULL;
+ char *cp, *ep, *sp;
+ char *savestr = NULL, *str = NULL;
char buffer[BUFSIZ], buffer2[BUFSIZ];
int i, c, ljust, n;
int value = 0;
struct tws *tws;
struct mailname *mn;
+ /* ep keeps track of displayed characters. They're limited by width.
+ The total number of characters, cp - scanl + 1 (for trailing NULL),
+ includes invisible control characters and is limited by max. */
cp = scanl;
- ep = scanl + width - 1;
+ ep = scanl + (width <= (int) max ? width : (int) max) - 1;
for (fmt = format; fmt->f_type != FT_DONE; fmt++)
switch (fmt->f_type) {
case FT_PARSEDATE:
fmt->f_comp->c_flags &= ~CF_PARSED;
break;
+ case FT_COMP:
+ case FT_COMPF:
+ case FT_LS_COMP:
+ case FT_LS_DECODECOMP:
+ /*
+ * Trim these components of any newlines.
+ *
+ * But don't trim the "body" and "text" components.
+ */
+
+ comp = fmt->f_comp;
+
+ if (! (comp->c_flags & CF_TRIMMED) && comp->c_text &&
+ (i = strlen(comp->c_text)) > 0) {
+ if (comp->c_text[i - 1] == '\n' &&
+ strcmp(comp->c_name, "body") != 0 &&
+ strcmp(comp->c_name, "text") != 0)
+ comp->c_text[i - 1] = '\0';
+ comp->c_flags |= CF_TRIMMED;
+ }
+ break;
}
fmt = format;
switch (fmt->f_type) {
case FT_COMP:
- cpstripped (&cp, ep, fmt->f_comp->c_text);
+ cpstripped (&cp, &ep, scanl + max - 1, fmt->f_comp->c_text);
break;
case FT_COMPF:
- cptrimmed (&cp, fmt->f_comp->c_text, fmt->f_width, fmt->f_fill, ep - cp);
+ cptrimmed (&cp, &ep, fmt->f_comp->c_text, fmt->f_width, fmt->f_fill,
+ scanl + max - 1);
break;
case FT_LIT:
break;
case FT_STR:
- cpstripped (&cp, ep, str);
+ cpstripped (&cp, &ep, scanl + max - 1, str);
break;
case FT_STRF:
- cptrimmed (&cp, str, fmt->f_width, fmt->f_fill, ep - cp);
+ cptrimmed (&cp, &ep, str, fmt->f_width, fmt->f_fill,
+ scanl + max - 1);
break;
case FT_STRLIT:
- sp = str;
- while ((c = *sp++) && cp < ep)
- *cp++ = c;
+ if (str) {
+ sp = str;
+ while ((c = *sp++) && cp < ep)
+ *cp++ = c;
+ }
+ break;
+ case FT_STRLITZ:
+ if (str) {
+ size_t len = strlen (str);
+
+ /* Don't want to emit part of an escape sequence. So if
+ there isn't enough room in the buffer for the entire
+ string, skip it completely. */
+ if (cp - scanl + len + 1 < max) {
+ for (sp = str; *sp; *cp++ = *sp++) continue;
+
+ /* This string doesn't count against the width.
+ So increase ep the same amount as cp, only if the
+ scan buffer will always be large enough. */
+ if (ep - scanl + len + 1 < max) {
+ ep += len;
+ }
+ }
+ }
break;
case FT_STRFW:
adios (NULL, "internal error (FT_STRFW)");
break;
case FT_DONE:
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
goto finished;
case FT_IF_S:
if (!(value = (str && *str))) {
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
fmt += fmt->f_skip;
continue;
}
case FT_IF_S_NULL:
if (!(value = (str == NULL || *str == 0))) {
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
fmt += fmt->f_skip;
continue;
}
case FT_IF_V_EQ:
if (value != fmt->f_value) {
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
fmt += fmt->f_skip;
continue;
}
case FT_IF_V_NE:
if (value == fmt->f_value) {
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
fmt += fmt->f_skip;
continue;
}
case FT_IF_V_GT:
if (value <= fmt->f_value) {
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
fmt += fmt->f_skip;
continue;
}
case FT_IF_MATCH:
if (!(value = (str && match (str, fmt->f_text)))) {
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
fmt += fmt->f_skip;
continue;
}
case FT_IF_AMATCH:
if (!(value = (str && uprf (str, fmt->f_text)))) {
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
fmt += fmt->f_skip;
continue;
}
break;
case FT_GOTO:
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
fmt += fmt->f_skip;
continue;
case FT_LS_TRIM:
if (str) {
- unsigned char *xp;
+ char *xp;
strncpy(buffer, str, sizeof(buffer));
buffer[sizeof(buffer)-1] = '\0';
str = buffer;
- while (isspace(*str))
+ while (isspace((unsigned char) *str))
str++;
ljust = 0;
if ((i = fmt->f_width) < 0) {
str[i] = '\0';
xp = str;
xp += strlen(str) - 1;
- while (xp > str && isspace(*xp))
+ while (xp > str && isspace((unsigned char) *xp))
*xp-- = '\0';
if (ljust && i > 0 && (int) strlen(str) > i)
str += strlen(str) - i;
/* UNQUOTEs RFC-2822 quoted-string and quoted-pair */
case FT_LS_UNQUOTE:
if (str) {
- int m;
strncpy(buffer, str, sizeof(buffer));
/* strncpy doesn't NUL-terminate if it fills the buffer */
buffer[sizeof(buffer)-1] = '\0';
- str = buffer;
-
- /* we will parse from buffer to buffer2 */
- n = 0; /* n is the input position in str */
- m = 0; /* m is the ouput position in buffer2 */
-
- while ( str[n] != '\0') {
- switch ( str[n] ) {
- case '\\':
- n++;
- if ( str[n] != '\0')
- buffer2[m++] = str[n++];
- break;
- case '"':
- n++;
- break;
- default:
- buffer2[m++] = str[n++];
- break;
- }
- }
- buffer2[m] = '\0';
+ unquote_string(buffer, buffer2);
str = buffer2;
}
break;
case FT_FORMATADDR:
/* hook for custom address list formatting (see replsbr.c) */
- str = formataddr (savestr, str);
+ if (callbacks && callbacks->formataddr)
+ str = callbacks->formataddr (savestr, str);
+ else
+ str = formataddr (savestr, str);
break;
case FT_CONCATADDR:
/* The same as formataddr, but doesn't do duplicate suppression */
- str = concataddr (savestr, str);
+ if (callbacks && callbacks->concataddr)
+ str = callbacks->concataddr (savestr, str);
+ else
+ str = concataddr (savestr, str);
break;
case FT_PUTADDR:
* (e.g., "To: ")
*/
{
- unsigned char *lp;
- char *lastb;
+ char *lp, *lastb;
int indent, wid, len;
lp = str;
adios(NULL, "putaddr -- num register (%d) must be greater "
"than label width (%d)", value, indent);
}
- while( (c = *sp++) && cp < ep)
- *cp++ = c;
+ while( (c = (unsigned char) *sp++) && cp < ep)
+ *cp++ = (char) c;
while (len > wid) {
/* try to break at a comma; failing that, break at a
* space.
*/
lastb = 0; sp = lp + wid;
- while (sp > lp && (c = *--sp) != ',') {
+ while (sp > lp && (c = (unsigned char) *--sp) != ',') {
if (! lastb && isspace(c))
lastb = sp - 1;
}
if (sp == lp) {
if (! (sp = lastb)) {
sp = lp + wid - 1;
- while (*sp && *sp != ',' && !isspace(*sp))
+ while (*sp && *sp != ',' &&
+ !isspace((unsigned char) *sp))
sp++;
if (*sp != ',')
sp--;
len -= sp - lp + 1;
while (cp < ep && lp <= sp)
*cp++ = *lp++;
- while (isspace(*lp))
+ while (isspace((unsigned char) *lp))
lp++, len--;
if (*lp) {
if (cp < ep)
*cp++ = ' ';
}
}
- cpstripped (&cp, ep, lp);
+ cpstripped (&cp, &ep, scanl + max - 1, lp);
}
break;
if (comp->c_mn != &fmt_mnull)
mnfree (comp->c_mn);
if ((sp = comp->c_text) && (sp = getname(sp)) &&
- (mn = getm (sp, NULL, 0, fmt_norm, NULL))) {
+ (mn = getm (sp, NULL, 0, NULL, 0))) {
comp->c_mn = mn;
while (getname(""))
;
if (comp->c_mn != &fmt_mnull)
mnfree (comp->c_mn);
if ((sp = comp->c_text) && (sp = getname(sp)) &&
- (mn = getm (sp, NULL, 0, AD_NAME, NULL))) {
+ (mn = getm (sp, NULL, 0, NULL, 0))) {
comp->c_mn = mn;
if (ismymbox(mn))
comp->c_flags |= CF_TRUE;
comp->c_flags &= ~CF_TRUE;
while ((sp = getname(sp)))
if ((comp->c_flags & CF_TRUE) == 0 &&
- (mn = getm (sp, NULL, 0, AD_NAME, NULL)))
+ (mn = getm (sp, NULL, 0, NULL, 0)))
if (ismymbox(mn))
comp->c_flags |= CF_TRUE;
} else {
comp->c_mn = &fmt_mnull;
}
break;
-
- case FT_ADDTOSEQ:
-#ifdef LBL
- /* If we're working on a folder (as opposed to a file), add the
- * current msg to sequence given in literal field. Don't
- * disturb string or value registers.
- */
- if (fmt_current_folder)
- seq_addmsg(fmt_current_folder, fmt->f_text, dat[0], -1);
-#endif
- break;
}
+
+ /*
+ * Call our tracing callback function, if one was supplied
+ */
+
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
fmt++;
}
-#ifndef JLR
- finished:;
- if (cp[-1] != '\n')
- *cp++ = '\n';
- *cp = 0;
- return ((struct format *)0);
-#else /* JLR */
- if (cp[-1] != '\n')
- *cp++ = '\n';
- while (fmt->f_type != FT_DONE)
+
+ /* Emit any trailing sequences of zero display length. */
+ while (fmt->f_type != FT_DONE) {
+ if (fmt->f_type == FT_LS_LIT) {
+ str = fmt->f_text;
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
+ } else if (fmt->f_type == FT_STRLITZ) {
+ /* Don't want to emit part of an escape sequence. So if
+ there isn't enough room in the buffer for the entire
+ string, skip it completely. Need room for null
+ terminator, and maybe trailing newline (added below). */
+ if (str && (cp - scanl + strlen (str) + 1 < max)) {
+ for (sp = str; *sp; *cp++ = *sp++) continue;
+ }
+ if (callbacks && callbacks->trace_func)
+ callbacks->trace_func(callbacks->trace_context, fmt, value,
+ str, scanl);
+ }
fmt++;
+ }
finished:;
+ if (cp > scanl && cp[-1] != '\n') {
+ if (cp - scanl < (int) max - 1) {
+ *cp++ = '\n';
+ } else {
+ cp[-1] = '\n';
+ }
+ }
*cp = '\0';
- return (fmt->f_value ? ++fmt : (struct format *) 0);
-
-#endif /* JLR */
+ return ((struct format *)0);
}
projects / nmh / blobdiff