void cmd_resolve_backspace(struct cmd_vty *vty) { int i, size; // no more to delete if (vty->cur_pos <= 0) return; size = vty->used_len - vty->cur_pos; CMD_DBGASSERT(size >= 0, "cmd_resolve_backspace"); // delete char vty->cur_pos--; vty->used_len--; cmd_back_one(); // print left chars memcpy(&vty->buffer[vty->cur_pos], &vty->buffer[vty->cur_pos + 1], size); vty->buffer[vty->used_len] = '\0'; for (i = 0; i < size; i ++) cmd_put_one(vty->buffer[vty->cur_pos + i]); cmd_put_one(' '); for (i = 0; i < size + 1; i++) cmd_back_one(); }
void cmd_resolve_insert(struct cmd_vty *vty) { int i, size; // no more to insert if (vty->used_len >= vty->buf_len) return; size = vty->used_len - vty->cur_pos; debug_print_ex(CMD_DEBUG_TYPE_INFO,"\r\nused_len=%d, pos=%d\r\n",vty->used_len, vty->cur_pos); CMD_DBGASSERT(size >= 0, "cmd_resolve_insert"); memcpy(&vty->buffer[vty->cur_pos + 1], &vty->buffer[vty->cur_pos], size); vty->buffer[vty->cur_pos] = vty->c; #if 0 /* BEGIN: del by weizengke, 2013/11/17 */ /* BEGIN: Added by weizengke, 2013/10/4 PN:bug for continue tab */ vty->buffer[vty->cur_pos + 1] = '\0'; /* END: Added by weizengke, 2013/10/4 PN:None */ /* END: del by weizengke, 2013/11/17 */ #endif // print left chars, then back size for (i = 0; i < size + 1; i++) cmd_put_one(vty->buffer[vty->cur_pos + i]); for (i = 0; i < size; i++) cmd_back_one(); vty->cur_pos++; vty->used_len++; }
/***************************************************************************** 函 数 名 : cmd_resolve_delete 功能描述 : 适配Delete键,向前删除字符 输入参数 : struct cmd_vty *vty 输出参数 : 无 返 回 值 : void 调用函数 : 被调函数 : 修改历史 : 1.日 期 : 2013年11月17日 作 者 : weizengke 修改内容 : 新生成函数 *****************************************************************************/ void cmd_resolve_delete(struct cmd_vty *vty) { int i, size; // no more to delete if (vty->cur_pos >= vty->used_len) return; /* del the current char*/ printf(" \b"); size = vty->used_len - vty->cur_pos; CMD_DBGASSERT(size >= 0, "cmd_resolve_delete"); memcpy(&vty->buffer[vty->cur_pos], &vty->buffer[vty->cur_pos + 1], size); vty->buffer[vty->used_len - 1] = '\0'; /* output the right chars */ for (i = 0; i < size; i ++) cmd_put_one(vty->buffer[vty->cur_pos + i]); vty->used_len--; /* back the cur_pos */ for (i = 0; i < size; i++) cmd_back_one(); }
// handle in read buffer, including left, right, delete, insert void cmd_resolve_left(struct cmd_vty *vty) { // already at leftmost, cannot move more if (vty->cur_pos <= 0) return; // move left one step vty->cur_pos--; cmd_back_one(); }
/* Note: Added by weizengke, 2013/10 clear current line by cur-pos */ void cmd_clear_line(struct cmd_vty *vty) { int size = vty->used_len - vty->cur_pos; CMD_DBGASSERT(size >= 0, "cmd_clear_line"); while (size--) { cmd_put_one(' '); } while (vty->used_len) { vty->used_len--; cmd_back_one(); cmd_put_one(' '); cmd_back_one(); } memset(vty->buffer, 0, HISTORY_MAX_SIZE); }
/* Note: Added by weizengke, 2013/10 output current command-buf */ void cmd_outcurrent() { int i; if (NULL == vty) { return ; } cmd_outstring("%s", CMD_ENTER); cmd_outprompt(vty->prompt); cmd_outstring("%s", vty->buffer); /* BEGIN: Added by weizengke, 2014/3/23 support delete word form cur_pos */ for (i = 0; i < strlen(vty->buffer) - vty->cur_pos; i++) { cmd_back_one(); } /* END: Added by weizengke, 2014/3/23 */ }
/***************************************************************************** 函 数 名 : cmd_resolve_del_lastword 功能描述 : 适配CTRL_W键,快速删除最后一个命令字 输入参数 : struct cmd_vty *vty 输出参数 : 无 返 回 值 : void 调用函数 : 被调函数 : 修改历史 : 1.日 期 : 2013年11月17日 作 者 : weizengke 修改内容 : 新生成函数 *****************************************************************************/ void cmd_resolve_del_lastword(struct cmd_vty *vty) { int i, size; // no more to delete if (vty->cur_pos <= 0) return; cmd_delete_word_ctrl_W_ex(vty); cmd_outstring("%s", CMD_ENTER); cmd_outprompt(vty->prompt); cmd_outstring("%s", vty->buffer); /* BEGIN: Added by weizengke, 2014/3/23 support delete word form cur_pos*/ for (i = 0; i < strlen(vty->buffer) - vty->cur_pos; i++) { cmd_back_one(); } /* END: Added by weizengke, 2014/3/23 */ }