/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2005 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ #pragma ident "%Z%%M% %I% %E% SMI" #include <ctype.h> #include <curses.h> #include "token.h" #include "winp.h" #include "fmacs.h" #include "wish.h" #define HALFLINE (int)(Cfld->cols / 2) static token _fixed(); static token _virtual(); /* * get single line of input */ token singleline(tok) token tok; { if (Flags & I_SCROLL) return(_virtual(tok)); else return(_fixed(tok)); } static token _fixed(tok) token tok; { register token rettok; register int col; static int lastwaswrap = FALSE; rettok = TOK_NOP; switch(tok) { case TOK_BACKSPACE: case TOK_LEFT: case TOK_RIGHT: case TOK_IL: beep(); /* do nothing and beep */ break; case TOK_ENTER: case TOK_RETURN: if (!(Flags & I_NOEDIT)) rettok = TOK_SAVE; else fgo(0, 0); break; case TOK_DL: Flags |= I_CHANGED; fgo(0, 0); fclearline(); break; case TOK_WRAP: if (Flags & I_AUTOADV && !(Flags & I_NOEDIT)) rettok = TOK_SAVE; else if (lastwaswrap == TRUE) beep(); if (Cfld->curcol >= LASTCOL) fgo(0, LASTCOL); break; case TOK_HOME: case TOK_BEG: fgo(0, 0); break; case TOK_SHOME: case TOK_END: col = LASTCOL; while (col >= 0 && freadchar(0, col) == ' ') col--; fgo(0, (col == LASTCOL || col == 0 ? col : col+1)); break; default: rettok = tok; } lastwaswrap = (tok == TOK_WRAP ? TRUE : FALSE); return(rettok); } static token _virtual(tok) token tok; { register token rettok; register int col; rettok = TOK_NOP; switch(tok) { case TOK_IL: beep(); break; case TOK_BACKSPACE: if (scroll_left(HALFLINE) == FALSE) beep(); else { fgo(0, Cfld->curcol - 1); fdelchar(); } break; case TOK_ENTER: case TOK_RETURN: while (scroll_left(Cfld->cols) == TRUE) /* abs k14 */ ; if (!(Flags & I_NOEDIT)) rettok = TOK_SAVE; else fgo(0, 0); break; case TOK_DL: Flags |= I_CHANGED; fgo(0, 0); fclearline(); Buffoffset = 0; clearbuf(); break; case TOK_LEFT: if (scroll_left(HALFLINE) == FALSE) beep(); break; case TOK_RIGHT: if (scroll_right(HALFLINE, FALSE) == FALSE) beep(); break; case TOK_WRAP: if (scroll_right(HALFLINE, FALSE) == FALSE) { Bufflast += HALFLINE; growbuf(Bufflast); /** growbuf(Buffsize + HALFLINE); abs k17 */ syncbuf(Buffoffset, 0, 0); /* abs f15 */ scroll_right(HALFLINE, TRUE); } fgo(0, Cfld->curcol + 1); break; case TOK_HOME: case TOK_BEG: while (scroll_left(Cfld->cols) == TRUE) ; fgo(0, 0); break; case TOK_SHOME: case TOK_END: while (scroll_right(Cfld->cols, FALSE) == TRUE) ; col = LASTCOL; while (col >= 0 && freadchar(0, col) == ' ') col--; fgo(0, (col == LASTCOL || col == 0 ? col : col+1)); break; default: rettok = tok; } return(rettok); }