libtecla/common/getline.c

208  * undo command. It records a copy of the input line from before
248   ViUndo undo;               /* Information needed to implement the vi */
249                              /*  undo command. */
1065  * by the vi undo command.
1440   {"vi-undo",                    gl_vi_undo},
1663   {"M-u",          "vi-undo"},
1816   gl->vi.undo.line = NULL;
1817   gl->vi.undo.buff_curpos = 0;
1818   gl->vi.undo.ntotal = 0;
1819   gl->vi.undo.saved = 0;
1948  * Allocate a vi undo buffer.
1950   gl->vi.undo.line = (char *) malloc(linelen + 2);
1951   if(!gl->vi.undo.line) {
1955   gl->vi.undo.line[0] = '\0';
2077     if(gl->vi.undo.line)
2078       free(gl->vi.undo.line);
4240  * use by vi-undo.
4272  * use by vi-undo.
4357  * use by vi-undo.
4380  * from the undo buffer.
4385  * undo buffer?
4387     int nrestore = gl->buff_curpos + nc <= gl->vi.undo.ntotal ?
4388       nc : gl->vi.undo.ntotal - gl->buff_curpos;
4393       gl_buffer_string(gl, gl->vi.undo.line + gl->buff_curpos, nrestore,
4397  * If their were insufficient characters in the undo buffer, then this
4399  * to terminate the line either where the undo buffer ran out, or if
4400  * we are deleting from beyond the end of the undo buffer, at the current
4404       gl_truncate_buffer(gl, (gl->vi.undo.ntotal > gl->buff_curpos) ?
4405 			 gl->vi.undo.ntotal : gl->buff_curpos);
4455  * use by vi-undo.
4498  * use by vi-undo.
4527  * use by vi-undo.
4575  * use by vi-undo.
4672  * use by vi-undo.
4708  * use by vi-undo.
4748  * use by vi-undo.
4886  * use by vi-undo.
4975  * use by vi-undo.
5064  * use by vi-undo.
5102  * use by vi-undo.
5642  * vi-undo.
6085  * by vi-undo.
6991  * use by vi-undo.
7010  * use by vi-undo.
7035  * use by vi-undo.
7143  * use by vi-undo.
7799  * historical buffer needed by the undo command. In emacs mode it does
7801  * functions, gl_interpret_char() sets gl->vi.undo.saved to 0 before
7810   if(gl->vi.command && !gl->vi.undo.saved) {
7811     strlcpy(gl->vi.undo.line, gl->line, gl->linelen);
7812     gl->vi.undo.buff_curpos = gl->buff_curpos;
7813     gl->vi.undo.ntotal = gl->ntotal;
7814     gl->vi.undo.saved = 1;
7828  * undo operation itself can subsequently be undone.
7835   char *undo_ptr = gl->vi.undo.line;
7849   if(gl->ntotal > gl->vi.undo.ntotal) {
7859   gl->vi.undo.ntotal = gl->ntotal;
7868   if(gl->buff_curpos < gl->vi.undo.buff_curpos)
7869     gl->vi.undo.buff_curpos = gl->buff_curpos;
7871     gl->buff_curpos = gl->vi.undo.buff_curpos;
8072        gl->vi.repeat.command_curpos <= gl->vi.undo.ntotal) {
8074  * Using the current line which is saved in the undo buffer, plus
8080 	if(gl_add_char_to_line(gl, gl->vi.undo.line[i]))
8280  * Mark the current line as not yet preserved for use by the vi undo command.
8282       gl->vi.undo.saved = 0;
8986  * no need to undo this before returning.
10472   gl->vi.undo.line[0] = '\0';
10473   gl->vi.undo.ntotal = 0;
10474   gl->vi.undo.buff_curpos = 0;