LineageOS/android_external_nano
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add code to partition a filestruct between a set of arbitrary

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coordinates; given the coordinates of the beginning and end of the mark,
this allows proper and easier handling of saving marked selections,
replacing text only in marked selections, and spell-checking marked
selections using either the internal or alternate spell checker; do all
these using a global partition structure


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2050 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
David Lawrence Ramsey
2004-11-03 22:03:41 +00:00
parent 29f03dcff9
commit 40bdb686aa
9 changed files with 358 additions and 74 deletions
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57
src/files.c
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@@ -1720,49 +1720,36 @@ int write_file(const char *name, int tmp, int append, int nonamechange)
int write_marked(const char *name, int tmp, int append)
{
int retval = -1;
filestruct *fileagebak = fileage;
filestruct *filebotbak = filebot;
bool old_modified = ISSET(MODIFIED);
/* write_file() unsets the MODIFIED flag. */
size_t topx;
/* The column of the beginning of the mark. */
char origchar;
/* We replace the character at the end of the mark with '\0'.
* We save the original character, to restore it. */
char *origcharloc;
/* The location of the character we nulled. */
bool added_magicline;
/* Whether we added a magicline after filebot. */
filestruct *top, *bot;
size_t top_x, bot_x;
/* Set fileage as the top of the mark, and filebot as the bottom. */
if (current->lineno > mark_beginbuf->lineno ||
(current->lineno == mark_beginbuf->lineno &&
current_x > mark_beginx)) {
fileage = mark_beginbuf;
topx = mark_beginx;
filebot = current;
origcharloc = current->data + current_x;
} else {
fileage = current;
topx = current_x;
filebot = mark_beginbuf;
origcharloc = mark_beginbuf->data + mark_beginx;
}
origchar = *origcharloc;
*origcharloc = '\0';
fileage->data += topx;
/* Partition the filestruct so that it contains only the marked
* text. */
mark_order((const filestruct **)&top, &top_x,
(const filestruct **)&bot, &bot_x);
filepart = partition_filestruct(top, top_x, bot, bot_x);
/* If the line at filebot is blank, treat it as the magicline and
* hence the end of the file. Otherwise, treat the line after
* filebot as the end of the file. */
if (filebot->data[0] != '\0' && filebot->next != NULL)
filebot = filebot->next;
* hence the end of the file. Otherwise, add a magicline and treat
* it as the end of the file. */
added_magicline = (filebot->data[0] != '\0');
if (added_magicline)
new_magicline();
retval = write_file(name, tmp, append, TRUE);
/* Now restore everything. */
fileage->data -= topx;
*origcharloc = origchar;
fileage = fileagebak;
filebot = filebotbak;
/* If we added a magicline, remove it now. */
if (added_magicline)
remove_magicline();
/* Unpartition the filestruct so that it contains all the text
* again. */
unpartition_filestruct(filepart);
if (old_modified)
set_modified();