mirror of
git://git.sv.gnu.org/nano.git
synced 2024-11-23 21:29:39 +03:00
tweaks: move three functions to the file where they are mainly used
The extract() and copy_from_buffer() functions are mainly used for cutting a line or a region, so move them to src/cut.c. Also move the function for which copy_from_buffer() is a wrapper.
This commit is contained in:
Benno Schulenberg
parent
97c8140cea
commit
72e5c15110
176
src/cut.c
176
src/cut.c
@ -210,6 +210,182 @@ void chop_next_word(void)
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}
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#endif /* !NANO_TINY */
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/* Move all text between (top, top_x) and (bot, bot_x) from the current buffer
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* into the cutbuffer. */
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void extract(linestruct *top, size_t top_x, linestruct *bot, size_t bot_x)
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{
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bool edittop_inside;
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#ifndef NANO_TINY
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bool mark_inside = FALSE;
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bool same_line = FALSE;
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if (top == bot && top_x == bot_x)
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return;
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#endif
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/* Partition the buffer so that it contains only the text from
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* (top, top_x) to (bot, bot_x), keep track of whether the top of
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* the edit window is inside the partition, and keep track of
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* whether the mark begins inside the partition. */
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partition_buffer(top, top_x, bot, bot_x);
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edittop_inside = (openfile->edittop->lineno >= openfile->filetop->lineno &&
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openfile->edittop->lineno <= openfile->filebot->lineno);
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#ifndef NANO_TINY
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if (openfile->mark) {
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mark_inside = (openfile->mark->lineno >= openfile->filetop->lineno &&
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openfile->mark->lineno <= openfile->filebot->lineno &&
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(openfile->mark != openfile->filetop ||
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openfile->mark_x >= top_x) &&
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(openfile->mark != openfile->filebot ||
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openfile->mark_x <= bot_x));
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same_line = (openfile->mark == openfile->filetop);
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}
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#endif
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/* Subtract the number of characters in the text from the file size. */
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openfile->totsize -= get_totsize(top, bot);
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/* If the given buffer is empty, just move all the text directly into it;
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* otherwise, append the text to what is already there. */
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if (cutbuffer == NULL) {
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cutbuffer = openfile->filetop;
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cutbottom = openfile->filebot;
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} else {
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/* Tack the data of the first line of the text onto the data of
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* the last line in the given buffer. */
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cutbottom->data = charealloc(cutbottom->data,
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strlen(cutbottom->data) +
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strlen(openfile->filetop->data) + 1);
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strcat(cutbottom->data, openfile->filetop->data);
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/* Attach the second line of the text (if any) to the last line
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* of the buffer, then remove the now superfluous first line. */
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cutbottom->next = openfile->filetop->next;
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delete_node(openfile->filetop);
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/* If there is a second line, make the reverse attachment too and
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* update the buffer pointer to point at the end of the text. */
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if (cutbottom->next != NULL) {
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cutbottom->next->prev = cutbottom;
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cutbottom = openfile->filebot;
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}
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}
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/* Since the text has now been saved, remove it from the file buffer. */
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openfile->filetop = make_new_node(NULL);
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openfile->filetop->data = copy_of("");
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openfile->filebot = openfile->filetop;
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/* Set the cursor at the point where the text was removed. */
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openfile->current = openfile->filetop;
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openfile->current_x = top_x;
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#ifndef NANO_TINY
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/* If the mark was inside the partition, put it where the cursor now is. */
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if (mark_inside) {
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openfile->mark = openfile->current;
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openfile->mark_x = openfile->current_x;
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} else if (same_line)
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/* Update the pointer to this partially cut line. */
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openfile->mark = openfile->current;
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#endif
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/* Glue the texts before and after the extraction together. */
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unpartition_buffer();
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renumber_from(openfile->current);
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/* If the top of the edit window was inside the old partition, put
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* it in range of current. */
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if (edittop_inside) {
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adjust_viewport(STATIONARY);
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refresh_needed = TRUE;
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}
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/* If the text doesn't end with a newline, and it should, add one. */
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if (!ISSET(NO_NEWLINES) && openfile->filebot->data[0] != '\0')
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new_magicline();
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}
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/* Meld the buffer that starts at topline into the current file buffer
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* at the current cursor position. */
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void ingraft_buffer(linestruct *topline)
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{
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size_t current_x_save = openfile->current_x;
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bool edittop_inside;
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#ifndef NANO_TINY
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bool right_side_up = FALSE;
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bool same_line = FALSE;
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/* Remember whether mark and cursor are on the same line, and their order. */
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if (openfile->mark) {
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same_line = (openfile->mark == openfile->current);
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right_side_up = (openfile->mark->lineno < openfile->current->lineno ||
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(same_line && openfile->mark_x < openfile->current_x));
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}
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#endif
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/* Partition the buffer so that it contains no text, and remember
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* whether the current line is at the top of the edit window. */
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partition_buffer(openfile->current, openfile->current_x,
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openfile->current, openfile->current_x);
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edittop_inside = (openfile->edittop == openfile->filetop);
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delete_node(openfile->filetop);
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/* Put the top and bottom of the current buffer at the top and
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* bottom of the passed buffer. */
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openfile->filetop = topline;
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openfile->filebot = topline;
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while (openfile->filebot->next != NULL)
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openfile->filebot = openfile->filebot->next;
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/* Put the cursor at the end of the pasted text. */
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openfile->current = openfile->filebot;
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openfile->current_x = strlen(openfile->filebot->data);
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/* When the pasted stuff contains no newline, adjust the cursor's
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* x coordinate for the text that is before the pasted stuff. */
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if (openfile->filetop == openfile->filebot)
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openfile->current_x += current_x_save;
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#ifndef NANO_TINY
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/* When needed, refresh the mark's pointer and compensate the mark's
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* x coordinate for the change in the current line. */
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if (same_line) {
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if (!right_side_up) {
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openfile->mark = openfile->filebot;
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openfile->mark_x += openfile->current_x - current_x_save;
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} else
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openfile->mark = openfile->filetop;
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}
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#endif
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/* Add the number of characters in the copied text to the file size. */
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openfile->totsize += get_totsize(openfile->filetop, openfile->filebot);
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/* If we pasted onto the first line of the edit window, the corresponding
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* record has been freed, so... point at the start of the copied text. */
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if (edittop_inside)
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openfile->edittop = openfile->filetop;
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/* Unpartition the buffer so that it contains all the text
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* again, plus the copied text. */
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unpartition_buffer();
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renumber_from(topline);
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/* If the text doesn't end with a newline, and it should, add one. */
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if (!ISSET(NO_NEWLINES) && openfile->filebot->data[0] != '\0')
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new_magicline();
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}
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/* Meld a copy of the given buffer into the current file buffer. */
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void copy_from_buffer(linestruct *somebuffer)
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{
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linestruct *the_copy = copy_buffer(somebuffer);
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ingraft_buffer(the_copy);
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}
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/* Move the whole current line from the current buffer to the cutbuffer. */
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void cut_line(void)
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{
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176
src/nano.c
176
src/nano.c
@ -279,182 +279,6 @@ void unpartition_buffer(void)
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openfile->filebot = filetail;
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}
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/* Move all text between (top, top_x) and (bot, bot_x) from the current buffer
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* into the cutbuffer. */
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void extract(linestruct *top, size_t top_x, linestruct *bot, size_t bot_x)
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{
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bool edittop_inside;
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#ifndef NANO_TINY
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bool mark_inside = FALSE;
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bool same_line = FALSE;
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if (top == bot && top_x == bot_x)
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return;
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#endif
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/* Partition the buffer so that it contains only the text from
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* (top, top_x) to (bot, bot_x), keep track of whether the top of
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* the edit window is inside the partition, and keep track of
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* whether the mark begins inside the partition. */
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partition_buffer(top, top_x, bot, bot_x);
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edittop_inside = (openfile->edittop->lineno >= openfile->filetop->lineno &&
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openfile->edittop->lineno <= openfile->filebot->lineno);
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#ifndef NANO_TINY
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if (openfile->mark) {
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mark_inside = (openfile->mark->lineno >= openfile->filetop->lineno &&
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openfile->mark->lineno <= openfile->filebot->lineno &&
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(openfile->mark != openfile->filetop ||
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openfile->mark_x >= top_x) &&
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(openfile->mark != openfile->filebot ||
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openfile->mark_x <= bot_x));
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same_line = (openfile->mark == openfile->filetop);
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}
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#endif
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/* Subtract the number of characters in the text from the file size. */
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openfile->totsize -= get_totsize(top, bot);
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/* If the given buffer is empty, just move all the text directly into it;
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* otherwise, append the text to what is already there. */
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if (cutbuffer == NULL) {
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cutbuffer = openfile->filetop;
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cutbottom = openfile->filebot;
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} else {
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/* Tack the data of the first line of the text onto the data of
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* the last line in the given buffer. */
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cutbottom->data = charealloc(cutbottom->data,
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strlen(cutbottom->data) +
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strlen(openfile->filetop->data) + 1);
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strcat(cutbottom->data, openfile->filetop->data);
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/* Attach the second line of the text (if any) to the last line
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* of the buffer, then remove the now superfluous first line. */
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cutbottom->next = openfile->filetop->next;
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delete_node(openfile->filetop);
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/* If there is a second line, make the reverse attachment too and
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* update the buffer pointer to point at the end of the text. */
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if (cutbottom->next != NULL) {
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cutbottom->next->prev = cutbottom;
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cutbottom = openfile->filebot;
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}
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}
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/* Since the text has now been saved, remove it from the file buffer. */
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openfile->filetop = make_new_node(NULL);
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openfile->filetop->data = copy_of("");
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openfile->filebot = openfile->filetop;
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/* Set the cursor at the point where the text was removed. */
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openfile->current = openfile->filetop;
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openfile->current_x = top_x;
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#ifndef NANO_TINY
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/* If the mark was inside the partition, put it where the cursor now is. */
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if (mark_inside) {
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openfile->mark = openfile->current;
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openfile->mark_x = openfile->current_x;
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} else if (same_line)
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/* Update the pointer to this partially cut line. */
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openfile->mark = openfile->current;
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#endif
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/* Glue the texts before and after the extraction together. */
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unpartition_buffer();
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renumber_from(openfile->current);
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/* If the top of the edit window was inside the old partition, put
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* it in range of current. */
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if (edittop_inside) {
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adjust_viewport(STATIONARY);
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refresh_needed = TRUE;
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}
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/* If the text doesn't end with a newline, and it should, add one. */
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if (!ISSET(NO_NEWLINES) && openfile->filebot->data[0] != '\0')
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new_magicline();
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}
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/* Meld the buffer that starts at topline into the current file buffer
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* at the current cursor position. */
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void ingraft_buffer(linestruct *topline)
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{
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size_t current_x_save = openfile->current_x;
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bool edittop_inside;
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#ifndef NANO_TINY
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bool right_side_up = FALSE;
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bool same_line = FALSE;
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/* Remember whether mark and cursor are on the same line, and their order. */
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if (openfile->mark) {
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same_line = (openfile->mark == openfile->current);
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right_side_up = (openfile->mark->lineno < openfile->current->lineno ||
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(same_line && openfile->mark_x < openfile->current_x));
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}
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#endif
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/* Partition the buffer so that it contains no text, and remember
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* whether the current line is at the top of the edit window. */
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partition_buffer(openfile->current, openfile->current_x,
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openfile->current, openfile->current_x);
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edittop_inside = (openfile->edittop == openfile->filetop);
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delete_node(openfile->filetop);
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/* Put the top and bottom of the current buffer at the top and
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* bottom of the passed buffer. */
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openfile->filetop = topline;
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openfile->filebot = topline;
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while (openfile->filebot->next != NULL)
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openfile->filebot = openfile->filebot->next;
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/* Put the cursor at the end of the pasted text. */
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openfile->current = openfile->filebot;
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openfile->current_x = strlen(openfile->filebot->data);
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/* When the pasted stuff contains no newline, adjust the cursor's
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* x coordinate for the text that is before the pasted stuff. */
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if (openfile->filetop == openfile->filebot)
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openfile->current_x += current_x_save;
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#ifndef NANO_TINY
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/* When needed, refresh the mark's pointer and compensate the mark's
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* x coordinate for the change in the current line. */
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if (same_line) {
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if (!right_side_up) {
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openfile->mark = openfile->filebot;
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openfile->mark_x += openfile->current_x - current_x_save;
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} else
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openfile->mark = openfile->filetop;
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}
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#endif
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/* Add the number of characters in the copied text to the file size. */
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openfile->totsize += get_totsize(openfile->filetop, openfile->filebot);
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/* If we pasted onto the first line of the edit window, the corresponding
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* record has been freed, so... point at the start of the copied text. */
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if (edittop_inside)
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openfile->edittop = openfile->filetop;
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/* Unpartition the buffer so that it contains all the text
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* again, plus the copied text. */
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unpartition_buffer();
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renumber_from(topline);
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/* If the text doesn't end with a newline, and it should, add one. */
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if (!ISSET(NO_NEWLINES) && openfile->filebot->data[0] != '\0')
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new_magicline();
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}
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/* Meld a copy of the given buffer into the current file buffer. */
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void copy_from_buffer(linestruct *somebuffer)
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{
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linestruct *the_copy = copy_buffer(somebuffer);
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ingraft_buffer(the_copy);
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}
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/* Display a warning about a key disabled in view mode. */
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void print_view_warning(void)
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{
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@ -257,6 +257,11 @@ void do_backspace(void);
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#ifndef NANO_TINY
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void chop_previous_word(void);
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void chop_next_word(void);
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#endif
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void extract(linestruct *top, size_t top_x, linestruct *bot, size_t bot_x);
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void ingraft_buffer(linestruct *somebuffer);
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void copy_from_buffer(linestruct *somebuffer);
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#ifndef NANO_TINY
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void cut_marked(bool *right_side_up);
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#endif
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void do_snip(bool copying, bool marked, bool until_eof, bool append);
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@ -397,9 +402,6 @@ void renumber_from(linestruct *line);
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void partition_buffer(linestruct *top, size_t top_x,
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linestruct *bot, size_t bot_x);
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void unpartition_buffer(void);
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void extract(linestruct *top, size_t top_x, linestruct *bot, size_t bot_x);
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void ingraft_buffer(linestruct *somebuffer);
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void copy_from_buffer(linestruct *somebuffer);
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void print_view_warning(void);
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bool in_restricted_mode(void);
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#ifndef ENABLE_HELP
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