-/*
- * An implementation of RFC 2646.
- *
- * NOTE: This still has to be made UTF-8 aware.
- *
- */
-
-#define FLOWED_MAX 77
-
-static int get_quote_level (char *line)
-{
- int quoted;
-
- for (quoted = 0; line[quoted] == '>'; quoted++);
- return quoted;
-}
-
-static void print_flowed_line (char *line, STATE * s, int ql)
-{
- int width;
- char *pos, *oldpos;
- int len = str_len (line);
- int i;
-
- if (MaxLineLength > 0) {
- width = MaxLineLength - WrapMargin - ql - 1;
- if (option (OPTSTUFFQUOTED))
- --width;
- if (width < 0)
- width = MaxLineLength;
- }
- else {
- if (option (OPTMBOXPANE))
- width = COLS - SidebarWidth - WrapMargin - ql - 1;
- else
- width = COLS - WrapMargin - ql - 1;
-
- if (option (OPTSTUFFQUOTED))
- --width;
- if (width < 0)
- width = COLS;
- }
-
- /* fprintf(stderr,"print_flowed_line will print `%s' with ql = %d\n",line,ql); */
-
- if (str_len (line) == 0) {
- if (option (OPTQUOTEEMPTY)) {
- if (s->prefix)
- state_puts(s->prefix,s);
- for (i=0;i<ql;++i) state_putc('>',s);
- if (option(OPTSTUFFQUOTED))
- state_putc(' ',s);
- }
- state_putc('\n',s);
- return;
- }
-
- pos = line + width;
- oldpos = line;
-
- /* fprintf(stderr,"oldpos = %p line+len = %p\n",oldpos,line+len); */
-
- for (; oldpos < line + len; pos += width) {
- /* fprintf(stderr,"outer for loop\n"); */
- if (pos < line + len) { /* only search a new position when we're not over the end of the string w/ pos */
- /* fprintf(stderr,"if 1\n"); */
- if (*pos == ' ') {
- /* fprintf(stderr,"if 2: good luck! found a space\n"); */
- *pos = '\0';
- ++pos;
- }
- else {
- /* fprintf(stderr,"if 2: else\n"); */
- char *save = pos;
-
- while (pos >= oldpos && !isspace (*pos)) {
- /* fprintf(stderr,"pos(%p) > oldpos(%p)\n",pos,oldpos); */
- --pos;
- }
- if (pos < oldpos) {
- /* fprintf(stderr,"wow, no space found, searching the other direction\n"); */
- pos = save;
- while (pos < line + len && *pos && !isspace (*pos)) {
- /* fprintf(stderr,"pos(%p) < line+len(%p)\n",pos,line+len); */
- ++pos;
- }
- /* fprintf(stderr,"found a space pos = %p\n",pos); */
- }
- *pos = '\0';
- ++pos;
- }
- }
- else {
- /* fprintf(stderr,"if 1 else\n"); */
- }
- if (s->prefix)
- state_puts (s->prefix, s);
- for (i = 0; i < ql; ++i)
- state_putc ('>', s);
- if (option (OPTSTUFFQUOTED) && (ql > 0 || s->prefix))
- state_putc (' ', s);
- state_puts (oldpos, s);
- /* fprintf(stderr,"print_flowed_line: `%s'\n",oldpos); */
- if (pos < line + len)
- state_putc (' ', s);
- state_putc ('\n', s);
- oldpos = pos;
- }
- /*state_puts(line,s);
- state_putc('\n',s); */
-}
-
-static int text_plain_flowed_handler (BODY * a, STATE * s)
-{
- int bytes = a->length;
- char buf[LONG_STRING];
- char *curline = str_dup ("");
- char *t = NULL;
- unsigned int curline_len = 1;
- unsigned int quotelevel = 0, newql = 0;
- int buf_off, buf_len;
-
- while (bytes > 0 && fgets (buf, sizeof (buf), s->fpin)) {
- buf_len = str_len (buf);
- bytes -= buf_len;
-
- newql = get_quote_level (buf);
-
- /* a change of quoting level in a paragraph - shouldn't happen,
- * but has to be handled - see RFC 3676, sec. 4.5.
- */
- if (newql != quotelevel && curline && *curline) {
- print_flowed_line (curline, s, quotelevel);
- *curline = '\0';
- curline_len = 1;
- }
- quotelevel = newql;
-
- /* XXX - If a line is longer than buf (shouldn't happen), it is split.
- * This will almost always cause an unintended line break, and
- * possibly a change in quoting level. But that's better than not
- * displaying it at all.
- */
- if ((t = strrchr (buf, '\n')) || (t = strrchr (buf, '\r'))) {
- *t = '\0';
- buf_len = t - buf;
- }
- buf_off = newql;
- if (buf[buf_off] == ' ')
- buf_off++;
-
- /* signature separator also flushes the previous paragraph */
- if (strcmp(buf + buf_off, "-- ") == 0 && curline && *curline) {
- print_flowed_line (curline, s, quotelevel);
- *curline = '\0';
- curline_len = 1;
- }
-
- curline = realloc (curline, curline_len + buf_len - buf_off);
- strcpy (curline + curline_len - 1, buf + buf_off);
- curline_len += buf_len - buf_off;
-
- /* if this was a fixed line the paragraph is finished */
- if (buf_len == 0 || buf[buf_len - 1] != ' ' || strcmp(buf + buf_off, "-- ") == 0) {
- print_flowed_line (curline, s, quotelevel);
- *curline = '\0';
- curline_len = 1;
- }
-
- }
- mem_free (&curline);
- return (0);
-}
-