static inline void
put_paragraph (WEdit * edit, unsigned char *t, off_t p, long indent, off_t size)
{
off_t cursor;
off_t i;
int c = '\0';
cursor = edit->buffer.curs1;
if (indent != 0)
while (strchr ("\t ", edit_buffer_get_byte (&edit->buffer, p)) != NULL)
p++;
for (i = 0; i < size; i++, p++)
{
if (i != 0 && indent != 0)
{
if (t[i - 1] == '\n' && c == '\n')
{
while (strchr ("\t ", edit_buffer_get_byte (&edit->buffer, p)) != NULL)
p++;
}
else if (t[i - 1] == '\n')
{
off_t curs;
edit_cursor_move (edit, p - edit->buffer.curs1);
curs = edit->buffer.curs1;
edit_insert_indent (edit, indent);
if (cursor >= curs)
cursor += edit->buffer.curs1 - p;
p = edit->buffer.curs1;
}
else if (c == '\n')
{
edit_cursor_move (edit, p - edit->buffer.curs1);
while (strchr ("\t ", edit_buffer_get_byte (&edit->buffer, p)) != NULL)
{
edit_delete (edit, TRUE);
if (cursor > edit->buffer.curs1)
cursor--;
}
p = edit->buffer.curs1;
}
}
c = edit_buffer_get_byte (&edit->buffer, p);
if (c != t[i])
replace_at (edit, p, t[i]);
}
edit_cursor_move (edit, cursor - edit->buffer.curs1); /* restore cursor position */
}
static inline void
replace_at (WEdit * edit, off_t q, int c)
{
edit_cursor_move (edit, q - edit->buffer.curs1);
edit_delete (edit, TRUE);
edit_insert_ahead (edit, c);
}
/* replaces a block of text */
static void
put_paragraph (WEdit * edit, unsigned char *t, long p, int indent, int size)
{
long cursor;
int i, c = 0;
cursor = edit->curs1;
if (indent)
while (strchr ("\t ", edit_get_byte (edit, p)))
p++;
for (i = 0; i < size; i++, p++) {
if (i && indent) {
if (t[i - 1] == '\n' && c == '\n') {
while (strchr ("\t ", edit_get_byte (edit, p)))
p++;
} else if (t[i - 1] == '\n') {
long curs;
edit_cursor_move (edit, p - edit->curs1);
curs = edit->curs1;
edit_insert_indent (edit, indent);
if (cursor >= curs)
cursor += edit->curs1 - p;
p = edit->curs1;
} else if (c == '\n') {
edit_cursor_move (edit, p - edit->curs1);
while (strchr ("\t ", edit_get_byte (edit, p))) {
edit_delete (edit, 1);
if (cursor > edit->curs1)
cursor--;
}
p = edit->curs1;
}
}
c = edit_get_byte (edit, p);
if (c != t[i])
replace_at (edit, p, t[i]);
}
edit_cursor_move (edit, cursor - edit->curs1); /* restore cursor position */
}
static void replace_at (WEdit * edit, long q, int c)
{
edit_cursor_move (edit, q - edit->curs1);
edit_delete (edit, 1);
edit_insert_ahead (edit, c);
}
void
format_paragraph (WEdit * edit, gboolean force)
{
off_t p, q;
long lines;
off_t size;
GString *t;
long indent;
unsigned char *t2;
gboolean utf8 = FALSE;
if (option_word_wrap_line_length < 2)
return;
if (edit_line_is_blank (edit, edit->buffer.curs_line))
return;
p = begin_paragraph (edit, force, &lines);
q = end_paragraph (edit, force);
indent = test_indent (edit, p, q);
t = get_paragraph (&edit->buffer, p, q, indent != 0);
size = t->len - 1;
if (!force)
{
off_t i;
char *stop_format_chars;
if (option_stop_format_chars != NULL
&& strchr (option_stop_format_chars, t->str[0]) != NULL)
{
g_string_free (t, TRUE);
return;
}
if (option_stop_format_chars == NULL || *option_stop_format_chars == '\0')
stop_format_chars = g_strdup ("\t");
else
stop_format_chars = g_strconcat (option_stop_format_chars, "\t", (char *) NULL);
for (i = 0; i < size - 1; i++)
if (t->str[i] == '\n' && strchr (stop_format_chars, t->str[i + 1]) != NULL)
{
g_free (stop_format_chars);
g_string_free (t, TRUE);
return;
}
g_free (stop_format_chars);
}
t2 = (unsigned char *) g_string_free (t, FALSE);
#ifdef HAVE_CHARSET
utf8 = edit->utf8;
#endif
/* scroll up to show 1st line of paragraph */
edit_move_up (edit, lines, TRUE);
/* scroll left as much as possible to show the formatted paragraph */
edit_scroll_left (edit, -edit->start_col);
format_this (t2, q - p, indent, utf8);
put_paragraph (edit, t2, p, indent, size);
g_free ((char *) t2);
/* move to the end of paragraph */
q = end_paragraph (edit, force);
edit_cursor_move (edit, q - edit->buffer.curs1);
/* try move to the start of next paragraph */
if (edit->buffer.curs_line < edit->buffer.lines)
{
edit_execute_cmd (edit, CK_Home, -1);
do
{
edit_execute_cmd (edit, CK_Down, -1);
}
while (edit->buffer.curs_line < edit->buffer.lines
&& edit_line_is_blank (edit, edit->buffer.curs_line));
}
}