reorder some functions for consistency

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2830 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
David Lawrence Ramsey 2005-07-08 02:47:05 +00:00
parent 826ab5a4fe
commit 90573296ea
4 changed files with 690 additions and 689 deletions

View File

@ -5,6 +5,7 @@ CVS code -
saved as an int instead of a ssize_t. Changes to
renumber_all(), renumber(), do_alt_speller(), and
backup_lines(). (DLR)
- Reorder some functions for consistency. (DLR)
- global.c:
shortcut_init()
- Simplify wording of nano_gotoline_msg. (Jordi)

View File

@ -40,6 +40,277 @@
static file_format fmt = NIX_FILE;
/* The format of the current file. */
#ifdef ENABLE_MULTIBUFFER
/* Create a new openfilestruct node. */
openfilestruct *make_new_opennode(void)
{
openfilestruct *newnode =
(openfilestruct *)nmalloc(sizeof(openfilestruct));
newnode->filename = NULL;
return newnode;
}
/* Splice a node into an existing openfilestruct. */
void splice_opennode(openfilestruct *begin, openfilestruct *newnode,
openfilestruct *end)
{
assert(newnode != NULL && begin != NULL);
newnode->next = end;
newnode->prev = begin;
begin->next = newnode;
if (end != NULL)
end->prev = newnode;
}
/* Unlink a node from the rest of the openfilestruct, and delete it. */
void unlink_opennode(openfilestruct *fileptr)
{
assert(fileptr != NULL && fileptr->prev != NULL && fileptr->next != NULL && fileptr != fileptr->prev && fileptr != fileptr->next);
fileptr->prev->next = fileptr->next;
fileptr->next->prev = fileptr->prev;
delete_opennode(fileptr);
}
/* Delete a node from the openfilestruct. */
void delete_opennode(openfilestruct *fileptr)
{
assert(fileptr != NULL && fileptr->filename != NULL && fileptr->fileage != NULL);
free(fileptr->filename);
free_filestruct(fileptr->fileage);
free(fileptr);
}
#ifdef DEBUG
/* Deallocate all memory associated with this and later files, including
* the lines of text. */
void free_openfilestruct(openfilestruct *src)
{
assert(src != NULL);
while (src != src->next) {
src = src->next;
delete_opennode(src->prev);
}
delete_opennode(src);
}
#endif
/* Add/update an entry to the open_files openfilestruct. If update is
* FALSE, a new entry is created; otherwise, the current entry is
* updated. */
void add_open_file(bool update)
{
if (update && open_files == NULL)
return;
/* If there are no entries in open_files, make the first one. */
if (open_files == NULL) {
open_files = make_new_opennode();
splice_opennode(open_files, open_files, open_files);
/* Otherwise, if we're not updating, make a new entry for
* open_files and splice it in after the current entry. */
} else if (!update) {
splice_opennode(open_files, make_new_opennode(),
open_files->next);
open_files = open_files->next;
}
/* Save the current filename. */
open_files->filename = mallocstrcpy(open_files->filename, filename);
#ifndef NANO_SMALL
/* Save the current file's stat. */
open_files->originalfilestat = originalfilestat;
#endif
/* Save the current file buffer. */
open_files->fileage = fileage;
open_files->filebot = filebot;
/* Save the current top of the edit window. */
open_files->edittop = edittop;
/* Save the current line. */
open_files->current = current;
/* Save the current cursor position. */
open_files->current_x = current_x;
/* Save the current place we want. */
open_files->placewewant = placewewant;
/* Save the current total number of lines. */
open_files->totlines = totlines;
/* Save the current total size. */
open_files->totsize = totsize;
/* Start with no flags saved. */
open_files->flags = 0;
/* Save the current modification status. */
if (ISSET(MODIFIED))
open_files->flags |= MODIFIED;
#ifndef NANO_SMALL
/* Save the current marking status and mark, if applicable. */
if (ISSET(MARK_ISSET)) {
open_files->flags |= MARK_ISSET;
open_files->mark_beginbuf = mark_beginbuf;
open_files->mark_beginx = mark_beginx;
}
/* Save the current file format. */
open_files->fmt = fmt;
#endif
#ifdef DEBUG
fprintf(stderr, "filename is %s\n", open_files->filename);
#endif
}
/* Read the current entry in the open_files structure and set up the
* currently open file buffer using that entry's information. */
void load_open_file(void)
{
assert(open_files != NULL);
/* Restore the current filename. */
filename = mallocstrcpy(filename, open_files->filename);
#ifndef NANO_SMALL
/* Restore the current file's stat. */
originalfilestat = open_files->originalfilestat;
#endif
/* Restore the current file buffer. */
fileage = open_files->fileage;
filebot = open_files->filebot;
/* Restore the current top of the edit window. */
edittop = open_files->edittop;
/* Restore the current line. */
current = open_files->current;
/* Restore the current cursor position. */
current_x = open_files->current_x;
/* Restore the current place we want. */
placewewant = open_files->placewewant;
/* Restore the current total number of lines. */
totlines = open_files->totlines;
/* Restore the current total size. */
totsize = open_files->totsize;
/* Restore the current modification status. */
if (open_files->flags & MODIFIED)
SET(MODIFIED);
else
UNSET(MODIFIED);
#ifndef NANO_SMALL
/* Restore the current marking status and mark, if applicable. */
if (open_files->flags & MARK_ISSET) {
mark_beginbuf = open_files->mark_beginbuf;
mark_beginx = open_files->mark_beginx;
SET(MARK_ISSET);
} else
UNSET(MARK_ISSET);
/* Restore the current file format. */
fmt = open_files->fmt;
#endif
#ifdef ENABLE_COLOR
update_color();
#endif
edit_refresh();
/* Update the titlebar. */
titlebar(NULL);
}
/* Open either the next or previous file buffer. */
void open_prevnext_file(bool next_file)
{
assert(open_files != NULL);
add_open_file(TRUE);
/* If only one file buffer is open, indicate it on the statusbar and
* get out. */
if (open_files == open_files->next) {
statusbar(_("No more open file buffers"));
return;
}
/* Switch to the next or previous file, depending on the value of
* next. */
open_files = next_file ? open_files->next : open_files->prev;
#ifdef DEBUG
fprintf(stderr, "filename is %s\n", open_files->filename);
#endif
/* Load the file we switched to. */
load_open_file();
/* And indicate the switch on the statusbar. */
statusbar(_("Switched to %s"),
((open_files->filename[0] == '\0') ? _("New Buffer") :
open_files->filename));
#ifdef DEBUG
dump_buffer(current);
#endif
}
/* Open the previous entry in the open_files structure. This function
* is used by the shortcut list. */
void open_prevfile_void(void)
{
open_prevnext_file(FALSE);
}
/* Open the next entry in the open_files structure. This function is
* used by the shortcut list. */
void open_nextfile_void(void)
{
open_prevnext_file(TRUE);
}
/* Delete an entry from the open_files filestruct. After deletion of an
* entry, the next entry is opened. Return TRUE on success or FALSE if
* there are no more open file buffers. */
bool close_open_file(void)
{
assert(open_files != NULL);
/* If only one file is open, get out. */
if (open_files == open_files->next)
return FALSE;
/* Open the next file. */
open_nextfile_void();
/* Close the file we had open before. */
unlink_opennode(open_files->prev);
/* Reinitialize the shortcut list. */
shortcut_init(FALSE);
display_main_list();
return TRUE;
}
#endif /* ENABLE_MULTIBUFFER */
/* What happens when there is no file to open? aiee! */
void new_file(void)
{
@ -714,277 +985,6 @@ void do_insertfile_void(void)
display_main_list();
}
#ifdef ENABLE_MULTIBUFFER
/* Create a new openfilestruct node. */
openfilestruct *make_new_opennode(void)
{
openfilestruct *newnode =
(openfilestruct *)nmalloc(sizeof(openfilestruct));
newnode->filename = NULL;
return newnode;
}
/* Splice a node into an existing openfilestruct. */
void splice_opennode(openfilestruct *begin, openfilestruct *newnode,
openfilestruct *end)
{
assert(newnode != NULL && begin != NULL);
newnode->next = end;
newnode->prev = begin;
begin->next = newnode;
if (end != NULL)
end->prev = newnode;
}
/* Unlink a node from the rest of the openfilestruct, and delete it. */
void unlink_opennode(openfilestruct *fileptr)
{
assert(fileptr != NULL && fileptr->prev != NULL && fileptr->next != NULL && fileptr != fileptr->prev && fileptr != fileptr->next);
fileptr->prev->next = fileptr->next;
fileptr->next->prev = fileptr->prev;
delete_opennode(fileptr);
}
/* Delete a node from the openfilestruct. */
void delete_opennode(openfilestruct *fileptr)
{
assert(fileptr != NULL && fileptr->filename != NULL && fileptr->fileage != NULL);
free(fileptr->filename);
free_filestruct(fileptr->fileage);
free(fileptr);
}
#ifdef DEBUG
/* Deallocate all memory associated with this and later files, including
* the lines of text. */
void free_openfilestruct(openfilestruct *src)
{
assert(src != NULL);
while (src != src->next) {
src = src->next;
delete_opennode(src->prev);
}
delete_opennode(src);
}
#endif
/* Add/update an entry to the open_files openfilestruct. If update is
* FALSE, a new entry is created; otherwise, the current entry is
* updated. */
void add_open_file(bool update)
{
if (update && open_files == NULL)
return;
/* If there are no entries in open_files, make the first one. */
if (open_files == NULL) {
open_files = make_new_opennode();
splice_opennode(open_files, open_files, open_files);
/* Otherwise, if we're not updating, make a new entry for
* open_files and splice it in after the current entry. */
} else if (!update) {
splice_opennode(open_files, make_new_opennode(),
open_files->next);
open_files = open_files->next;
}
/* Save the current filename. */
open_files->filename = mallocstrcpy(open_files->filename, filename);
#ifndef NANO_SMALL
/* Save the current file's stat. */
open_files->originalfilestat = originalfilestat;
#endif
/* Save the current file buffer. */
open_files->fileage = fileage;
open_files->filebot = filebot;
/* Save the current top of the edit window. */
open_files->edittop = edittop;
/* Save the current line. */
open_files->current = current;
/* Save the current cursor position. */
open_files->current_x = current_x;
/* Save the current place we want. */
open_files->placewewant = placewewant;
/* Save the current total number of lines. */
open_files->totlines = totlines;
/* Save the current total size. */
open_files->totsize = totsize;
/* Start with no flags saved. */
open_files->flags = 0;
/* Save the current modification status. */
if (ISSET(MODIFIED))
open_files->flags |= MODIFIED;
#ifndef NANO_SMALL
/* Save the current marking status and mark, if applicable. */
if (ISSET(MARK_ISSET)) {
open_files->flags |= MARK_ISSET;
open_files->mark_beginbuf = mark_beginbuf;
open_files->mark_beginx = mark_beginx;
}
/* Save the current file format. */
open_files->fmt = fmt;
#endif
#ifdef DEBUG
fprintf(stderr, "filename is %s\n", open_files->filename);
#endif
}
/* Read the current entry in the open_files structure and set up the
* currently open file buffer using that entry's information. */
void load_open_file(void)
{
assert(open_files != NULL);
/* Restore the current filename. */
filename = mallocstrcpy(filename, open_files->filename);
#ifndef NANO_SMALL
/* Restore the current file's stat. */
originalfilestat = open_files->originalfilestat;
#endif
/* Restore the current file buffer. */
fileage = open_files->fileage;
filebot = open_files->filebot;
/* Restore the current top of the edit window. */
edittop = open_files->edittop;
/* Restore the current line. */
current = open_files->current;
/* Restore the current cursor position. */
current_x = open_files->current_x;
/* Restore the current place we want. */
placewewant = open_files->placewewant;
/* Restore the current total number of lines. */
totlines = open_files->totlines;
/* Restore the current total size. */
totsize = open_files->totsize;
/* Restore the current modification status. */
if (open_files->flags & MODIFIED)
SET(MODIFIED);
else
UNSET(MODIFIED);
#ifndef NANO_SMALL
/* Restore the current marking status and mark, if applicable. */
if (open_files->flags & MARK_ISSET) {
mark_beginbuf = open_files->mark_beginbuf;
mark_beginx = open_files->mark_beginx;
SET(MARK_ISSET);
} else
UNSET(MARK_ISSET);
/* Restore the current file format. */
fmt = open_files->fmt;
#endif
#ifdef ENABLE_COLOR
update_color();
#endif
edit_refresh();
/* Update the titlebar. */
titlebar(NULL);
}
/* Open either the next or previous file buffer. */
void open_prevnext_file(bool next_file)
{
assert(open_files != NULL);
add_open_file(TRUE);
/* If only one file buffer is open, indicate it on the statusbar and
* get out. */
if (open_files == open_files->next) {
statusbar(_("No more open file buffers"));
return;
}
/* Switch to the next or previous file, depending on the value of
* next. */
open_files = next_file ? open_files->next : open_files->prev;
#ifdef DEBUG
fprintf(stderr, "filename is %s\n", open_files->filename);
#endif
/* Load the file we switched to. */
load_open_file();
/* And indicate the switch on the statusbar. */
statusbar(_("Switched to %s"),
((open_files->filename[0] == '\0') ? _("New Buffer") :
open_files->filename));
#ifdef DEBUG
dump_buffer(current);
#endif
}
/* Open the previous entry in the open_files structure. This function
* is used by the shortcut list. */
void open_prevfile_void(void)
{
open_prevnext_file(FALSE);
}
/* Open the next entry in the open_files structure. This function is
* used by the shortcut list. */
void open_nextfile_void(void)
{
open_prevnext_file(TRUE);
}
/* Delete an entry from the open_files filestruct. After deletion of an
* entry, the next entry is opened. Return TRUE on success or FALSE if
* there are no more open file buffers. */
bool close_open_file(void)
{
assert(open_files != NULL);
/* If only one file is open, get out. */
if (open_files == open_files->next)
return FALSE;
/* Open the next file. */
open_nextfile_void();
/* Close the file we had open before. */
unlink_opennode(open_files->prev);
/* Reinitialize the shortcut list. */
shortcut_init(FALSE);
display_main_list();
return TRUE;
}
#endif /* ENABLE_MULTIBUFFER */
/* When passed "[relative path]" or "[relative path][filename]" in
* origpath, return "[full path]" or "[full path][filename]" on success,
* or NULL on error. Do this if the file doesn't exist but the relative

View File

@ -78,6 +78,392 @@ static filestruct *jusbottom = NULL;
/* Pointer to end of justify buffer. */
#endif
/* Create a new filestruct node. Note that we specifically do not set
* prevnode->next equal to the new line. */
filestruct *make_new_node(filestruct *prevnode)
{
filestruct *newnode = (filestruct *)nmalloc(sizeof(filestruct));
newnode->data = NULL;
newnode->prev = prevnode;
newnode->next = NULL;
newnode->lineno = (prevnode != NULL) ? prevnode->lineno + 1 : 1;
return newnode;
}
/* Make a copy of a filestruct node. */
filestruct *copy_node(const filestruct *src)
{
filestruct *dst;
assert(src != NULL);
dst = (filestruct *)nmalloc(sizeof(filestruct));
dst->data = mallocstrcpy(NULL, src->data);
dst->next = src->next;
dst->prev = src->prev;
dst->lineno = src->lineno;
return dst;
}
/* Splice a node into an existing filestruct. */
void splice_node(filestruct *begin, filestruct *newnode, filestruct
*end)
{
assert(newnode != NULL && begin != NULL);
newnode->next = end;
newnode->prev = begin;
begin->next = newnode;
if (end != NULL)
end->prev = newnode;
}
/* Unlink a node from the rest of the filestruct. */
void unlink_node(const filestruct *fileptr)
{
assert(fileptr != NULL);
if (fileptr->prev != NULL)
fileptr->prev->next = fileptr->next;
if (fileptr->next != NULL)
fileptr->next->prev = fileptr->prev;
}
/* Delete a node from the filestruct. */
void delete_node(filestruct *fileptr)
{
assert(fileptr != NULL && fileptr->data != NULL);
if (fileptr->data != NULL)
free(fileptr->data);
free(fileptr);
}
/* Duplicate a whole filestruct. */
filestruct *copy_filestruct(const filestruct *src)
{
filestruct *head, *copy;
assert(src != NULL);
copy = copy_node(src);
copy->prev = NULL;
head = copy;
src = src->next;
while (src != NULL) {
copy->next = copy_node(src);
copy->next->prev = copy;
copy = copy->next;
src = src->next;
}
copy->next = NULL;
return head;
}
/* Frees a filestruct. */
void free_filestruct(filestruct *src)
{
assert(src != NULL);
while (src->next != NULL) {
src = src->next;
delete_node(src->prev);
}
delete_node(src);
}
void renumber_all(void)
{
filestruct *temp;
ssize_t line = 1;
assert(fileage == NULL || fileage != fileage->next);
for (temp = fileage; temp != NULL; temp = temp->next)
temp->lineno = line++;
}
void renumber(filestruct *fileptr)
{
if (fileptr == NULL || fileptr->prev == NULL || fileptr == fileage)
renumber_all();
else {
ssize_t line = fileptr->prev->lineno;
assert(fileptr != fileptr->next);
for (; fileptr != NULL; fileptr = fileptr->next)
fileptr->lineno = ++line;
}
}
/* Partition a filestruct so it begins at (top, top_x) and ends at (bot,
* bot_x). */
partition *partition_filestruct(filestruct *top, size_t top_x,
filestruct *bot, size_t bot_x)
{
partition *p;
assert(top != NULL && bot != NULL && fileage != NULL && filebot != NULL);
/* Initialize the partition. */
p = (partition *)nmalloc(sizeof(partition));
/* If the top and bottom of the partition are different from the top
* and bottom of the filestruct, save the latter and then set them
* to top and bot. */
if (top != fileage) {
p->fileage = fileage;
fileage = top;
} else
p->fileage = NULL;
if (bot != filebot) {
p->filebot = filebot;
filebot = bot;
} else
p->filebot = NULL;
/* Save the line above the top of the partition, detach the top of
* the partition from it, and save the text before top_x in
* top_data. */
p->top_prev = top->prev;
top->prev = NULL;
p->top_data = mallocstrncpy(NULL, top->data, top_x + 1);
p->top_data[top_x] = '\0';
/* Save the line below the bottom of the partition, detach the
* bottom of the partition from it, and save the text after bot_x in
* bot_data. */
p->bot_next = bot->next;
bot->next = NULL;
p->bot_data = mallocstrcpy(NULL, bot->data + bot_x);
/* Remove all text after bot_x at the bottom of the partition. */
null_at(&bot->data, bot_x);
/* Remove all text before top_x at the top of the partition. */
charmove(top->data, top->data + top_x, strlen(top->data) -
top_x + 1);
align(&top->data);
/* Return the partition. */
return p;
}
/* Unpartition a filestruct so it begins at (fileage, 0) and ends at
* (filebot, strlen(filebot)) again. */
void unpartition_filestruct(partition **p)
{
char *tmp;
assert(p != NULL && fileage != NULL && filebot != NULL);
/* Reattach the line above the top of the partition, and restore the
* text before top_x from top_data. Free top_data when we're done
* with it. */
tmp = mallocstrcpy(NULL, fileage->data);
fileage->prev = (*p)->top_prev;
if (fileage->prev != NULL)
fileage->prev->next = fileage;
fileage->data = charealloc(fileage->data, strlen((*p)->top_data) +
strlen(fileage->data) + 1);
strcpy(fileage->data, (*p)->top_data);
free((*p)->top_data);
strcat(fileage->data, tmp);
free(tmp);
/* Reattach the line below the bottom of the partition, and restore
* the text after bot_x from bot_data. Free bot_data when we're
* done with it. */
filebot->next = (*p)->bot_next;
if (filebot->next != NULL)
filebot->next->prev = filebot;
filebot->data = charealloc(filebot->data, strlen(filebot->data) +
strlen((*p)->bot_data) + 1);
strcat(filebot->data, (*p)->bot_data);
free((*p)->bot_data);
/* Restore the top and bottom of the filestruct, if they were
* different from the top and bottom of the partition. */
if ((*p)->fileage != NULL)
fileage = (*p)->fileage;
if ((*p)->filebot != NULL)
filebot = (*p)->filebot;
/* Uninitialize the partition. */
free(*p);
*p = NULL;
}
/* Move all the text between (top, top_x) and (bot, bot_x) in the
* current filestruct to a filestruct beginning with file_top and ending
* with file_bot. If no text is between (top, top_x) and (bot, bot_x),
* don't do anything. */
void move_to_filestruct(filestruct **file_top, filestruct **file_bot,
filestruct *top, size_t top_x, filestruct *bot, size_t bot_x)
{
filestruct *top_save;
size_t part_totsize;
bool at_edittop;
#ifndef NANO_SMALL
bool mark_inside = FALSE;
#endif
assert(file_top != NULL && file_bot != NULL && top != NULL && bot != NULL);
/* If (top, top_x)-(bot, bot_x) doesn't cover any text, get out. */
if (top == bot && top_x == bot_x)
return;
/* Partition the filestruct so that it contains only the text from
* (top, top_x) to (bot, bot_x), keep track of whether the top of
* the partition is the top of the edit window, and keep track of
* whether the mark begins inside the partition. */
filepart = partition_filestruct(top, top_x, bot, bot_x);
at_edittop = (fileage == edittop);
#ifndef NANO_SMALL
if (ISSET(MARK_ISSET))
mark_inside = (mark_beginbuf->lineno >= fileage->lineno &&
mark_beginbuf->lineno <= filebot->lineno &&
(mark_beginbuf != fileage || mark_beginx >= top_x) &&
(mark_beginbuf != filebot || mark_beginx <= bot_x));
#endif
/* Get the number of characters in the text, and subtract it from
* totsize. */
get_totals(top, bot, NULL, &part_totsize);
totsize -= part_totsize;
if (*file_top == NULL) {
/* If file_top is empty, just move all the text directly into
* it. This is equivalent to tacking the text in top onto the
* (lack of) text at the end of file_top. */
*file_top = fileage;
*file_bot = filebot;
} else {
/* Otherwise, tack the text in top onto the text at the end of
* file_bot. */
(*file_bot)->data = charealloc((*file_bot)->data,
strlen((*file_bot)->data) + strlen(fileage->data) + 1);
strcat((*file_bot)->data, fileage->data);
/* Attach the line after top to the line after file_bot. Then,
* if there's more than one line after top, move file_bot down
* to bot. */
(*file_bot)->next = fileage->next;
if ((*file_bot)->next != NULL) {
(*file_bot)->next->prev = *file_bot;
*file_bot = filebot;
}
}
/* Since the text has now been saved, remove it from the filestruct.
* If the top of the partition was the top of the edit window, set
* edittop to where the text used to start. If the mark began
* inside the partition, set the beginning of the mark to where the
* text used to start. */
fileage = (filestruct *)nmalloc(sizeof(filestruct));
fileage->data = mallocstrcpy(NULL, "");
filebot = fileage;
if (at_edittop)
edittop = fileage;
#ifndef NANO_SMALL
if (mark_inside) {
mark_beginbuf = fileage;
mark_beginx = top_x;
}
#endif
/* Restore the current line and cursor position. */
current = fileage;
current_x = top_x;
top_save = fileage;
/* Unpartition the filestruct so that it contains all the text
* again, minus the saved text. */
unpartition_filestruct(&filepart);
/* Renumber starting with the beginning line of the old
* partition. */
renumber(top_save);
if (filebot->data[0] != '\0')
new_magicline();
/* Set totlines to the new number of lines in the file. */
totlines = filebot->lineno;
}
/* Copy all the text from the filestruct beginning with file_top and
* ending with file_bot to the current filestruct at the current cursor
* position. */
void copy_from_filestruct(filestruct *file_top, filestruct *file_bot)
{
filestruct *top_save;
size_t part_totlines, part_totsize;
bool at_edittop;
assert(file_top != NULL && file_bot != NULL);
/* Partition the filestruct so that it contains no text, and keep
* track of whether the top of the partition is the top of the edit
* window. */
filepart = partition_filestruct(current, current_x, current,
current_x);
at_edittop = (fileage == edittop);
/* Put the top and bottom of the filestruct at copies of file_top
* and file_bot. */
fileage = copy_filestruct(file_top);
filebot = fileage;
while (filebot->next != NULL)
filebot = filebot->next;
/* Restore the current line and cursor position. */
current = filebot;
current_x = strlen(filebot->data);
if (fileage == filebot)
current_x += strlen(filepart->top_data);
/* Get the number of lines and the number of characters in the saved
* text, and add the latter to totsize. */
get_totals(fileage, filebot, &part_totlines, &part_totsize);
totsize += part_totsize;
/* If the top of the partition was the top of the edit window, set
* edittop to where the saved text now starts, and update the
* current y-coordinate to account for the number of lines it
* has, less one since the first line will be tacked onto the
* current line. */
if (at_edittop)
edittop = fileage;
current_y += part_totlines - 1;
top_save = fileage;
/* Unpartition the filestruct so that it contains all the text
* again, minus the saved text. */
unpartition_filestruct(&filepart);
/* Renumber starting with the beginning line of the old
* partition. */
renumber(top_save);
if (filebot->data[0] != '\0')
new_magicline();
/* Set totlines to the new number of lines in the file. */
totlines = filebot->lineno;
}
void print_view_warning(void)
{
statusbar(_("Key illegal in VIEW mode"));
@ -590,392 +976,6 @@ void help_init(void)
}
#endif
/* Create a new filestruct node. Note that we specifically do not set
* prevnode->next equal to the new line. */
filestruct *make_new_node(filestruct *prevnode)
{
filestruct *newnode = (filestruct *)nmalloc(sizeof(filestruct));
newnode->data = NULL;
newnode->prev = prevnode;
newnode->next = NULL;
newnode->lineno = (prevnode != NULL) ? prevnode->lineno + 1 : 1;
return newnode;
}
/* Make a copy of a filestruct node. */
filestruct *copy_node(const filestruct *src)
{
filestruct *dst;
assert(src != NULL);
dst = (filestruct *)nmalloc(sizeof(filestruct));
dst->data = mallocstrcpy(NULL, src->data);
dst->next = src->next;
dst->prev = src->prev;
dst->lineno = src->lineno;
return dst;
}
/* Splice a node into an existing filestruct. */
void splice_node(filestruct *begin, filestruct *newnode, filestruct
*end)
{
assert(newnode != NULL && begin != NULL);
newnode->next = end;
newnode->prev = begin;
begin->next = newnode;
if (end != NULL)
end->prev = newnode;
}
/* Unlink a node from the rest of the filestruct. */
void unlink_node(const filestruct *fileptr)
{
assert(fileptr != NULL);
if (fileptr->prev != NULL)
fileptr->prev->next = fileptr->next;
if (fileptr->next != NULL)
fileptr->next->prev = fileptr->prev;
}
/* Delete a node from the filestruct. */
void delete_node(filestruct *fileptr)
{
assert(fileptr != NULL && fileptr->data != NULL);
if (fileptr->data != NULL)
free(fileptr->data);
free(fileptr);
}
/* Duplicate a whole filestruct. */
filestruct *copy_filestruct(const filestruct *src)
{
filestruct *head, *copy;
assert(src != NULL);
copy = copy_node(src);
copy->prev = NULL;
head = copy;
src = src->next;
while (src != NULL) {
copy->next = copy_node(src);
copy->next->prev = copy;
copy = copy->next;
src = src->next;
}
copy->next = NULL;
return head;
}
/* Frees a filestruct. */
void free_filestruct(filestruct *src)
{
assert(src != NULL);
while (src->next != NULL) {
src = src->next;
delete_node(src->prev);
}
delete_node(src);
}
/* Partition a filestruct so it begins at (top, top_x) and ends at (bot,
* bot_x). */
partition *partition_filestruct(filestruct *top, size_t top_x,
filestruct *bot, size_t bot_x)
{
partition *p;
assert(top != NULL && bot != NULL && fileage != NULL && filebot != NULL);
/* Initialize the partition. */
p = (partition *)nmalloc(sizeof(partition));
/* If the top and bottom of the partition are different from the top
* and bottom of the filestruct, save the latter and then set them
* to top and bot. */
if (top != fileage) {
p->fileage = fileage;
fileage = top;
} else
p->fileage = NULL;
if (bot != filebot) {
p->filebot = filebot;
filebot = bot;
} else
p->filebot = NULL;
/* Save the line above the top of the partition, detach the top of
* the partition from it, and save the text before top_x in
* top_data. */
p->top_prev = top->prev;
top->prev = NULL;
p->top_data = mallocstrncpy(NULL, top->data, top_x + 1);
p->top_data[top_x] = '\0';
/* Save the line below the bottom of the partition, detach the
* bottom of the partition from it, and save the text after bot_x in
* bot_data. */
p->bot_next = bot->next;
bot->next = NULL;
p->bot_data = mallocstrcpy(NULL, bot->data + bot_x);
/* Remove all text after bot_x at the bottom of the partition. */
null_at(&bot->data, bot_x);
/* Remove all text before top_x at the top of the partition. */
charmove(top->data, top->data + top_x, strlen(top->data) -
top_x + 1);
align(&top->data);
/* Return the partition. */
return p;
}
/* Unpartition a filestruct so it begins at (fileage, 0) and ends at
* (filebot, strlen(filebot)) again. */
void unpartition_filestruct(partition **p)
{
char *tmp;
assert(p != NULL && fileage != NULL && filebot != NULL);
/* Reattach the line above the top of the partition, and restore the
* text before top_x from top_data. Free top_data when we're done
* with it. */
tmp = mallocstrcpy(NULL, fileage->data);
fileage->prev = (*p)->top_prev;
if (fileage->prev != NULL)
fileage->prev->next = fileage;
fileage->data = charealloc(fileage->data, strlen((*p)->top_data) +
strlen(fileage->data) + 1);
strcpy(fileage->data, (*p)->top_data);
free((*p)->top_data);
strcat(fileage->data, tmp);
free(tmp);
/* Reattach the line below the bottom of the partition, and restore
* the text after bot_x from bot_data. Free bot_data when we're
* done with it. */
filebot->next = (*p)->bot_next;
if (filebot->next != NULL)
filebot->next->prev = filebot;
filebot->data = charealloc(filebot->data, strlen(filebot->data) +
strlen((*p)->bot_data) + 1);
strcat(filebot->data, (*p)->bot_data);
free((*p)->bot_data);
/* Restore the top and bottom of the filestruct, if they were
* different from the top and bottom of the partition. */
if ((*p)->fileage != NULL)
fileage = (*p)->fileage;
if ((*p)->filebot != NULL)
filebot = (*p)->filebot;
/* Uninitialize the partition. */
free(*p);
*p = NULL;
}
/* Move all the text between (top, top_x) and (bot, bot_x) in the
* current filestruct to a filestruct beginning with file_top and ending
* with file_bot. If no text is between (top, top_x) and (bot, bot_x),
* don't do anything. */
void move_to_filestruct(filestruct **file_top, filestruct **file_bot,
filestruct *top, size_t top_x, filestruct *bot, size_t bot_x)
{
filestruct *top_save;
size_t part_totsize;
bool at_edittop;
#ifndef NANO_SMALL
bool mark_inside = FALSE;
#endif
assert(file_top != NULL && file_bot != NULL && top != NULL && bot != NULL);
/* If (top, top_x)-(bot, bot_x) doesn't cover any text, get out. */
if (top == bot && top_x == bot_x)
return;
/* Partition the filestruct so that it contains only the text from
* (top, top_x) to (bot, bot_x), keep track of whether the top of
* the partition is the top of the edit window, and keep track of
* whether the mark begins inside the partition. */
filepart = partition_filestruct(top, top_x, bot, bot_x);
at_edittop = (fileage == edittop);
#ifndef NANO_SMALL
if (ISSET(MARK_ISSET))
mark_inside = (mark_beginbuf->lineno >= fileage->lineno &&
mark_beginbuf->lineno <= filebot->lineno &&
(mark_beginbuf != fileage || mark_beginx >= top_x) &&
(mark_beginbuf != filebot || mark_beginx <= bot_x));
#endif
/* Get the number of characters in the text, and subtract it from
* totsize. */
get_totals(top, bot, NULL, &part_totsize);
totsize -= part_totsize;
if (*file_top == NULL) {
/* If file_top is empty, just move all the text directly into
* it. This is equivalent to tacking the text in top onto the
* (lack of) text at the end of file_top. */
*file_top = fileage;
*file_bot = filebot;
} else {
/* Otherwise, tack the text in top onto the text at the end of
* file_bot. */
(*file_bot)->data = charealloc((*file_bot)->data,
strlen((*file_bot)->data) + strlen(fileage->data) + 1);
strcat((*file_bot)->data, fileage->data);
/* Attach the line after top to the line after file_bot. Then,
* if there's more than one line after top, move file_bot down
* to bot. */
(*file_bot)->next = fileage->next;
if ((*file_bot)->next != NULL) {
(*file_bot)->next->prev = *file_bot;
*file_bot = filebot;
}
}
/* Since the text has now been saved, remove it from the filestruct.
* If the top of the partition was the top of the edit window, set
* edittop to where the text used to start. If the mark began
* inside the partition, set the beginning of the mark to where the
* text used to start. */
fileage = (filestruct *)nmalloc(sizeof(filestruct));
fileage->data = mallocstrcpy(NULL, "");
filebot = fileage;
if (at_edittop)
edittop = fileage;
#ifndef NANO_SMALL
if (mark_inside) {
mark_beginbuf = fileage;
mark_beginx = top_x;
}
#endif
/* Restore the current line and cursor position. */
current = fileage;
current_x = top_x;
top_save = fileage;
/* Unpartition the filestruct so that it contains all the text
* again, minus the saved text. */
unpartition_filestruct(&filepart);
/* Renumber starting with the beginning line of the old
* partition. */
renumber(top_save);
if (filebot->data[0] != '\0')
new_magicline();
/* Set totlines to the new number of lines in the file. */
totlines = filebot->lineno;
}
/* Copy all the text from the filestruct beginning with file_top and
* ending with file_bot to the current filestruct at the current cursor
* position. */
void copy_from_filestruct(filestruct *file_top, filestruct *file_bot)
{
filestruct *top_save;
size_t part_totlines, part_totsize;
bool at_edittop;
assert(file_top != NULL && file_bot != NULL);
/* Partition the filestruct so that it contains no text, and keep
* track of whether the top of the partition is the top of the edit
* window. */
filepart = partition_filestruct(current, current_x, current,
current_x);
at_edittop = (fileage == edittop);
/* Put the top and bottom of the filestruct at copies of file_top
* and file_bot. */
fileage = copy_filestruct(file_top);
filebot = fileage;
while (filebot->next != NULL)
filebot = filebot->next;
/* Restore the current line and cursor position. */
current = filebot;
current_x = strlen(filebot->data);
if (fileage == filebot)
current_x += strlen(filepart->top_data);
/* Get the number of lines and the number of characters in the saved
* text, and add the latter to totsize. */
get_totals(fileage, filebot, &part_totlines, &part_totsize);
totsize += part_totsize;
/* If the top of the partition was the top of the edit window, set
* edittop to where the saved text now starts, and update the
* current y-coordinate to account for the number of lines it
* has, less one since the first line will be tacked onto the
* current line. */
if (at_edittop)
edittop = fileage;
current_y += part_totlines - 1;
top_save = fileage;
/* Unpartition the filestruct so that it contains all the text
* again, minus the saved text. */
unpartition_filestruct(&filepart);
/* Renumber starting with the beginning line of the old
* partition. */
renumber(top_save);
if (filebot->data[0] != '\0')
new_magicline();
/* Set totlines to the new number of lines in the file. */
totlines = filebot->lineno;
}
void renumber_all(void)
{
filestruct *temp;
ssize_t line = 1;
assert(fileage == NULL || fileage != fileage->next);
for (temp = fileage; temp != NULL; temp = temp->next)
temp->lineno = line++;
}
void renumber(filestruct *fileptr)
{
if (fileptr == NULL || fileptr->prev == NULL || fileptr == fileage)
renumber_all();
else {
ssize_t line = fileptr->prev->lineno;
assert(fileptr != fileptr->next);
for (; fileptr != NULL; fileptr = fileptr->next)
fileptr->lineno = ++line;
}
}
#ifdef HAVE_GETOPT_LONG
#define print1opt(shortflag, longflag, desc) print1opt_full(shortflag, longflag, desc)
#else

View File

@ -246,6 +246,22 @@ void do_cut_till_end(void);
void do_uncut_text(void);
/* Public functions in files.c. */
#ifdef ENABLE_MULTIBUFFER
openfilestruct *make_new_opennode(void);
void splice_opennode(openfilestruct *begin, openfilestruct *newnode,
openfilestruct *end);
void unlink_opennode(openfilestruct *fileptr);
void delete_opennode(openfilestruct *fileptr);
#ifdef DEBUG
void free_openfilestruct(openfilestruct *src);
#endif
void add_open_file(bool update);
void load_open_file(void);
void open_prevnext_file(bool next_file);
void open_prevfile_void(void);
void open_nextfile_void(void);
bool close_open_file(void);
#endif
void new_file(void);
filestruct *read_line(char *buf, filestruct *prevnode, bool
*first_line_ins, size_t buf_len);
@ -265,22 +281,6 @@ void do_insertfile(
#endif
);
void do_insertfile_void(void);
#ifdef ENABLE_MULTIBUFFER
openfilestruct *make_new_opennode(void);
void splice_opennode(openfilestruct *begin, openfilestruct *newnode,
openfilestruct *end);
void unlink_opennode(openfilestruct *fileptr);
void delete_opennode(openfilestruct *fileptr);
#ifdef DEBUG
void free_openfilestruct(openfilestruct *src);
#endif
void add_open_file(bool update);
void load_open_file(void);
void open_prevnext_file(bool next_file);
void open_prevfile_void(void);
void open_nextfile_void(void);
bool close_open_file(void);
#endif
char *get_full_path(const char *origpath);
char *check_writable_directory(const char *path);
char *safe_tempfile(FILE **f);
@ -359,6 +359,22 @@ void do_right(bool allow_update);
void do_right_void(void);
/* Public functions in nano.c. */
filestruct *make_new_node(filestruct *prevnode);
filestruct *copy_node(const filestruct *src);
void splice_node(filestruct *begin, filestruct *newnode, filestruct
*end);
void unlink_node(const filestruct *fileptr);
void delete_node(filestruct *fileptr);
filestruct *copy_filestruct(const filestruct *src);
void free_filestruct(filestruct *src);
void renumber_all(void);
void renumber(filestruct *fileptr);
partition *partition_filestruct(filestruct *top, size_t top_x,
filestruct *bot, size_t bot_x);
void unpartition_filestruct(partition **p);
void move_to_filestruct(filestruct **file_top, filestruct **file_bot,
filestruct *top, size_t top_x, filestruct *bot, size_t bot_x);
void copy_from_filestruct(filestruct *file_top, filestruct *file_bot);
void print_view_warning(void);
void finish(void);
void die(const char *msg, ...);
@ -373,22 +389,6 @@ void mouse_init(void);
#ifndef DISABLE_HELP
void help_init(void);
#endif
filestruct *make_new_node(filestruct *prevnode);
filestruct *copy_node(const filestruct *src);
void splice_node(filestruct *begin, filestruct *newnode, filestruct
*end);
void unlink_node(const filestruct *fileptr);
void delete_node(filestruct *fileptr);
filestruct *copy_filestruct(const filestruct *src);
void free_filestruct(filestruct *src);
partition *partition_filestruct(filestruct *top, size_t top_x,
filestruct *bot, size_t bot_x);
void unpartition_filestruct(partition **p);
void move_to_filestruct(filestruct **file_top, filestruct **file_bot,
filestruct *top, size_t top_x, filestruct *bot, size_t bot_x);
void copy_from_filestruct(filestruct *file_top, filestruct *file_bot);
void renumber_all(void);
void renumber(filestruct *fileptr);
void print1opt_full(const char *shortflag
#ifdef HAVE_GETOPT_LONG
, const char *longflag