vi.js

/* 
 JSVI - VI in JavaScript.
 Copyright (C) 2006-2008 Internet Connection, Inc.

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
var emacsen = false;

/* TODO

 sortof bugs:
 the toolbar is kind of ugly- possibly replace with an image-version-
 or more likely- replace with styled buttons

 ideas:
 uneditable sections?

 a ruler at the 72 character mark? possibly word-wrapping?

 want to switch between vi/emacs modes?

 */
var term_cols;
var term_rows;
var term_win_width;
var term_win_height;
var term_cur_width;
var term_cur_width2;

var tools;
var suggest;
var backing;

var tagstyle = 0;
var line_height = 0;
var cclick = undefined;

var mode = 0;
var accum = 0;
var lastaccum = 0;
var marks = new Object();
var registers = new Object();
var lastreg = '';

var lastcommand;
var lastmotion;
var cursoriv;
var drawiv;

var printer;
var term;
var base = 0;
var left = 0;

var vselm = 0;
var vselx = undefined;
var vsely = undefined;
var vseld = false;

var lastkey = undefined;

var statustext = '';
var command = '';
var oldcommand = '';
var commandleft = 0;
var savex, savey;
var once = true;

var cursorx, cursory;
var file = new Array();
var tags = new Array();
var palette;
var cursor;

var yank_buffer = undefined;

var term_save_h = new Array();

var term_save_ss;
var term_save_mc;
var term_save_kd;
var term_save_kp;
var term_save_rs;
var term_save_op;

var lastsearch;
var lastsubst;
var lastflags;

var undoset = undefined;
var undoline = undefined;
var undoy = -1;

var term_ex_motion;
var vi_ft_reg;
var viflags = '';
var lastinsert = '';

var spelling = false;
var spellcheck = new Object();
var safewords = new Object();
var brokenwords = new Object();
var suggestions = new Object();

safewords['jsvi'] = true;
safewords['javascript'] = true;
safewords['URL'] = true;
safewords['hyperlinks'] = true;
safewords['HTML'] = true;
safewords['UNIX'] = true;
safewords['Firefox'] = true;
safewords['MSIE'] = true;
safewords['Ctrl'] = true;
safewords['vi'] = true;
safewords['vi-keys'] = true;
safewords[':hardcopy'] = true;
safewords['unicode-aware'] = true;
safewords['developer-centric'] = true;

var doing_backing_paste = false;

var _h = hangul.attachIfHangul;

function _true() {
    return true;
}
function _false() {
    return false;
}

function _cbrestore() {
    var i;
    for (i = 0; i < term_save_h.length; i++) {
        var z = term_save_h[i];
        z();
    }
    term_save_h = new Array();
}
function _cbw(nx, ny) {
    var nz = window['on' + nx];
    (function (x, y, z) {
        term_save_h[term_save_h.length] = function () {
            window['on' + x] = z;
        };
    })(nx, ny, nz);
    window['on' + nx] = ny;
}
function _cbd(nx, ny) {
    var nz = document['on' + nx];
    (function (x, y, z) {
        term_save_h[term_save_h.length] = function () {
            document['on' + x] = z;
        };
    })(nx, ny, nz);
    document['on' + nx] = ny;
}
function _rer(re, t, aa) {
    if (RegExp.rightContext != undefined) return RegExp.rightContext;
    // emulate rightContext
    var s = re.toString();
    if ((s.substr(0, 2) == '/^' && s.substr(s.length - 1, 1) == '/') || s.substr(0, 1) == '^') {
        // bound at beginning
        return t.substr(aa[0].length, t.length - aa[0].length);
    }
    if ((s.substr(0, 1) == '/' && s.substr(s.length - 2, 2) == '$/') || s.substr(s.length - 1, 1) == '$') {
        // bound at end
        return "";
    }
    var j = t.lastIndexOf(aa[0]);
    if (j != -1) return t.substr(j.t.length - j);
    return t;

}
function _rel(re, t, aa) {
    if (RegExp.leftContext != undefined) return RegExp.leftContext;
    // emulate leftContext
    var s = re.toString();
    if ((s.substr(0, 2) == '/^' && s.substr(s.length - 1, 1) == '/') || s.substr(0, 1) == '^') {
        // bound at beginning
        return "";
    }
    if ((s.substr(0, 1) == '/' && s.substr(s.length - 2, 2) == '$/') || s.substr(s.length - 1, 1) == '$') {
        // bound at end
        return t.substr(0, t.length - aa[0].length);
    }
    var j = t.indexOf(aa[0]);
    if (j != -1) return t.substr(0, j);
    return "";
}
function _hra(x) {
    var i;
    var cx = 0;
    var t = '';
    var g = '';
    for (i = 0; i < x.length; i++) {
        var x3 = x.substr(i, 3);
        var gx = String.fromCharCode(cx);
        if (x3 == '<b>') {
            cx = cx | 1;
            i += 2;
        } else if (x3 == '</b') {
            cx = (cx | 1) ^ 1;
            i += 3;
        } else if (x3 == '<u>') {
            cx = cx | 2;
            i += 2;
        } else if (x3 == '</u') {
            cx = (cx | 2) ^ 2;
            i += 3;
        } else if (x3 == '<i>') {
            cx = cx | 16;
            i += 2;
        } else if (x3 == '</i') {
            cx = (cx | 16) ^ 16;
            i += 3;
        } else if (x3 == '<sp') { // <span class="rv">
            cx = cx | 4;
            i += 16;
        } else if (x3 == '</s') { // </span>
            cx = (cx | 4) ^ 4;
            i += 6;
        } else if (x3 == '&am') { // &amp;
            t += '&';
            g += gx;
            i += 4;
        } else if (x3 == '&lt') { // &lt;
            t += '<';
            g += gx;
            i += 3;
        } else {
            t += x.substr(i, 1);
            g += gx;
        }
    }
    var aa = new Array();
    aa[0] = t;
    aa[1] = g;
    return aa;
}
function _rtf(t, g) {
    var cx = 0;
    var i;
    var o = '';
    if (t == undefined) {
        t = '';
        g = '';
    }
    for (i = 0; i < t.length; i++) {
        var gx = g.substr(i, 1).charCodeAt(0);
        var tx = t.substr(i, 1);
        if (tx == "<") tx = "&lt;";
        else if (tx == '&') tx = '&amp;';
        if (gx != cx) {
            if ((gx & 1) && !(cx & 1)) {
                o += "<b>";
            } else if (!(gx & 1) && (cx & 1)) {
                o += "</b>";
            }

            if ((gx & 2) && !(cx & 2)) {
                o += "<u>";
            } else if (!(gx & 2) && (cx & 2)) {
                o += "</u>";
            }

            if ((gx & 4) && !(cx & 4)) {
                o += "<span class=\"rv\">";
            } else if (!(gx & 4) && (cx & 4)) {
                o += "</span>";
            }
            if ((gx & 16) && !(cx & 16)) {
                o += "<i>";
            } else if (!(gx & 16) && (cx & 16)) {
                o += "</i>";
            }
            cx = gx;
        }
        o += tx;
    }
    return o;
}
function _rtfl(y) {
    return _rtf(file[y], tags[y]);
}
function _dfx(q) {
    /*@cc_on @*/
    /*@if (1) return
     @end @*/
    q.style.position = 'fixed';
}
function term_freeze() {
    var i;
    var o = '';
    for (i = 0; i < file.length; i++) {
        o += _rtfl(i) + "\n";
    }
    return o;
}
function _term_update_printer() {
    var i;
    var o = '';
    for (i = 0; i < file.length; i++) {
        o += _rtfl(i) + "<br/>";
    }
    printer.innerHTML = o;
}
function term_thaw(s) {
    var a = s.split("\n");
    var i;
    var aa;
    file = new Array();
    tags = new Array();
    var o = '';
    for (i = 0; i < a.length; i++) {
        o += a[i] + "<br/>";
        aa = _hra(a[i]);
        file[i] = aa[0];
        tags[i] = aa[1];
    }
    printer.innerHTML = o;
}

function _mxo(z, y) {
    var i;
    var o = '';
    for (i = 0; i < z.length; i++) {
        o += String.fromCharCode(z.substr(i, 1).charCodeAt(0) | y);
    }
    return o;
}
function _mxs(n, y) {
    var z = String.fromCharCode(y);
    var i;
    var o = '';
    for (i = 0; i < n; i++) {
        o += z;
    }
    return o;
}
function _zeros(n) {
    return _mxs(n, 0);
}
function _fauc() {
    var d = document.getElementsByTagName('A');
    var i;
    for (i = 0; i < d.length; i++) {
        var j = d[i];
        if (j._len && j._term) {
            if (j._row == (base + cursory) && (left + cursorx) >= j._col && (left + cursorx) <= (j._col + j._len)) {
                return j;
            }
        }
    }
    return undefined;
}
function _pass_click(e) {
    var z = _fauc();
    if (z && z.onclick) return z.onclick();
    return false;
}
function _pass_dblclick(e) {
    var z = _fauc();
    if (z && z.ondblclick) return z.ondblclick();
    return false;
}

function _cancel_ev(e) {
    if (!e) e = window.event;
    if (!e) return false;
    if (e.preventDefault) e.preventDefault();
    if (e.stopPropagation) e.stopPropagation();
    return false;
}
function _willclick(e) {
    if (window.event) {
        if (!e) e = window.event;
    }
    if (!e) return true;
    if (cclick != undefined) window.clearTimeout(cclick);
    var x = e.clientX;
    var y = e.clientY;
    cclick = window.setTimeout(function () {
        cclick = undefined;
        _cursortoxy(x, y);
    }, 1000);
    return false;
}
function _subclick(e) {
    return _willclick(e);
}
function _srep(e) {
    if (!e) e = window.event;
    if (e.preventDefault) e.preventDefault();
    if (e.stopPropagation) e.stopPropagation();
    e.cancelBubble = true;
    var y = this._row;
    var x = this._col;
    var len = this._len;
    var rep = this._word;
    var t = (file[y]);
    var g = (tags[y]);
    var w = (t.substr(x, len));
    var st = (g.substr(x, len));
    while (st.length < rep.length) {
        st = st + st;
    }
    if (st.length > rep.length) {
        st = st.substr(0, rep.length);
    }

    term_save_undo(); // save undo!
    file[y] = t.substr(0, x) + rep + t.substr(x + len, t.length - (x + len));
    tags[y] = g.substr(0, x) + st + g.substr(x + len, t.length - (x + len));
    suggest.style.display = 'none';
    suggest._visible = false;
    while (suggest.firstChild) suggest.removeChild(suggest.firstChild);
    if (w == rep) {
        statustext = '';
    } else {
        statustext = 'Replaced "' + w + '" with "' + rep + '"';
    }
    term_redraw();
    return false;
}
function _rl(w, h) {
    var x = document.createElement('DIV');
    x.style.overflow = 'hidden';
    x.style.height = h + 'px';
    x.style.marginLeft = w + 'px';
    x.style.marginRight = w + 'px';
    x.style.backgroundColor = palette[0];
    x.style.display = 'block';
    x.style.innerHTML = '&nbsp;';
    x.style.fontFamily = 'monospace';
    return x;
}
function _ruo(t) {
    this.style.color = palette[0];
    this.style.backgroundColor = palette[1];
}
function _rux(t) {
    this.style.color = palette[1];
    this.style.backgroundColor = palette[0];
}
function _openurl(e) {
    var u = this._term;
    window.open(u, '_new');
    return true;
}
function _suggest(e) {
    var z = this;
    if (window.event) {
        if (!e) e = window.event;
    }
    if (e) {
        if (e.preventDefault) e.preventDefault();
        if (e.stopPropagation) e.stopPropagation();
        e.cancelBubble = true;
    }
    (function (q) {
        window.setTimeout(function () {
            _dosuggest(q);
        }, 10);
    })(z);
    return false;
}
function _dosuggest(z) {
    var x = 0;
    var y = 0;
    var xt = z._term;
    var wrow = z._row;
    var wcol = z._col;
    var wlen = z._len;
    while (z && z != document.body) {
        x += z.offsetLeft;
        y += z.offsetTop;
        z = z.offsetParent;
    }

    suggest._visible = true;
    suggest.style.top = y + 'px';
    suggest.style.left = x + 'px';
    suggest.style.display = 'block';
    suggest.style.zIndex = '3';
    suggest.style.padding = '2px';

    while (suggest.firstChild) suggest.removeChild(suggest.firstChild);

    var sg = document.createElement('DIV');
    sg.style.backgroundColor = palette[0];
    sg.style.color = palette[1];
    sg.style.fontSize = '100%';
    sg.style.padding = '2px';
    sg.style.textAlign = 'center';
    sg.style.cursor = 'default';

    var sa = suggestions[xt];
    var i;
    var fs = 200;
    var fd = parseInt((100 / sa.length) * 1.5);
    var bf;
    for (i = 0; i < sa.length; i++) {
        var da = document.createElement('A');
        da.href = 'javascript:void(0)';
        da.onclick = _srep;
        da._word = sa[i];
        da._row = wrow;
        da._col = wcol;
        da._len = wlen;
        da.onmouseover = _ruo;
        da.onmouseout = _rux;
        da.style.margin = '4px';
        da.style.textDecoration = 'none';
        da.style.display = 'block';
        da.style.color = palette[1];
        da.style.backgroundColor = palette[0];
        da.style.fontSize = fs + '%';
        fs -= fd;
        if (fs <= 100) fs = 100;
        da.appendChild(document.createTextNode(sa[i]));
        // err...
        da.appendChild(document.createElement('BR'));
        if ((wrow - base) > term_rows - (sa.length + 1)) {
            sg.insertBefore(da, sg.firstChild);
            bf = true;
        } else if (((i % 2) == 0) || (wrow < (sa.length + 1))) {
            sg.appendChild(da);
        } else {
            sg.insertBefore(da, sg.firstChild);
        }
        da = undefined; // break
    }
    if (sa.length == 0) {
        sg.appendChild(document.createTextNode('No matches'));
    }
    var da = document.createElement('A');
    da.href = 'javascript:void(0)';
    da.onclick = _srep;
    da._word = xt;
    da._row = wrow;
    da._col = wcol;
    da._len = wlen;
    da.style.margin = '4px';
    da.style.textDecoration = 'none';
    da.style.color = palette[1];
    da.style.backgroundColor = palette[0];
    da.style.borderBottom = '1px dashed red';
    da.style.fontSize = '100%';
    da.onmouseover = _ruo;
    da.onmouseout = _rux;
    da.appendChild(document.createTextNode(xt));
    if (wrow > term_rows - (sa.length + 1)) {
        sg.insertBefore(da, sg.firstChild);
    } else {
        sg.appendChild(da);
    }

    // rounded top and bottom
    suggest.appendChild(_rl(3, 1));
    suggest.appendChild(_rl(2, 1));
    suggest.appendChild(_rl(1, 2));
    suggest.appendChild(sg);
    suggest.appendChild(_rl(1, 2));
    suggest.appendChild(_rl(2, 1));
    suggest.appendChild(_rl(3, 1));

    // msie needs to recalculate these things manually... grr...
    // this doesn't work because msie doesn't calculate offsetwidth (thtphtpht)
    var zq;
    var mw = 11;
    if (mw < xt.length) mw = xt.length;
    for (i = 0; i < sa.length; i++) {
        if (mw < sa[i].length) mw = sa[i].length;
    }

    if (mw) {
        mw *= (term_cur_width * 2);
        mw += 16;
        suggest.style.width = mw + 'px';
    }

    var sx = parseInt(sg.offsetWidth / 4);
    if (x < sx) {
        x = 0;
    } else {
        x -= sx;
        suggest.style.left = x + 'px';
    }
    var sy = parseInt(sg.offsetHeight / 4);
    if (bf) {
        suggest.style.top = '';
        suggest.style.bottom = '0px';
    } else if (y < sy) {
        y = 0;
        suggest.style.top = '0px';
        suggest.style.bottom = '';
    } else {
        y -= sy;
        suggest.style.top = y + 'px';
        suggest.style.bottom = '';
    }

    statustext = 'Suggestions for: ' + xt;
    term_redraw();

    da = undefined; // break
    sg = undefined; // break
}

function _backing_paste_real() {
    doing_backing_paste = false;
    term_redraw();
    if (!backing.value) return;
    if (backing._lastvalue == backing.value) {
        return;
    }
    backing._lastvalue = backing.value;
    term_paste(false, backing.value);
    term_redraw();
}
function _msie_paste() {
    var chunk = "new content associated with this object";
    event.returnValue = false;
    term_paste(false, window.clipboardData.getData("Text", chunk));
}
function _backing_paste() {
    _update_backing();
    if (!doing_backing_paste) {
        doing_backing_paste = true;
        window.setTimeout(_backing_paste_real, 10);
    }
}
function _update_backing() {
    if (!backing) return;
    /*@cc_on @*/
    /*@if (1) return
     @end @*/
    backing.focus();
    backing.select();
}
function _yaty(y) {
    if (line_height) return parseInt(y / line_height);
    var zx;
    var qx = term.firstChild;
    var nh = 0;
    while (qx && qx != document.body) {
        nh += qx.offsetTop;
        qx = qx.offsetParent;
    }

    var ny = 0;
    var cy = 0;
    for (zx = term.firstChild; zx; zx = zx.nextSibling) {
        nh += (zx.offsetHeight + 4);
        if (y <= nh) {
            cy = ny;
            break;
        }
        ny++;
    }
    return cy;
}
function _cursortoxy(x, y) {
    // this is a little gross...
    var sx = cursorx;
    cursorx = parseInt(x / term_cur_width);
    term_redraw();

    var sy = cursory;
    cursory = _yaty(y);

    if (cursory >= (term_rows - 1)) {
        cursory = sy;
        cursorx = sx;
        sy = 0;
    }

    term_scrollto();
    term_calcx();
    if (cursory != sy) {
        term_redraw();
    } else {
        term_calcy();
    }
    _update_backing();
    return true;
}
function _mousescroll(e) {
    if (!e) e = window.event;
    var d = 0;
    if (e.wheelDelta) {
        d = e.wheelDelta;
        if (d < 0) d = 1; else d = -1;
    } else if (e.detail) {
        d = e.detail;
    } else {
        return true;
    }
    if (d < 0) {
        if (base > 0) base--;
    } else if (d > 0) {
        if (base < (file.length - (term_rows - 1))) base++;
    }
    term_redraw();
    return false;
}

function _mousedown(e) {
    if (suggest._visible) return true;
    if (!e) e = window.event;
    var y = _yaty(e.clientY);
    if (y >= (term_rows - 1)) return true;
    _willclick(e);
    vseld = true;
    vselm = 0;
    vselx = undefined;
    vsely = undefined;
    return false;
}
function _mousemove(e) {
    if (!e) e = window.event;
    if (e) {
        if (e.preventDefault) e.preventDefault();
        if (e.stopPropagation) e.stopPropagation();
        e.cancelBubble = true;
    }
    if (window.getSelection) {
        var s = window.getSelection();
        if (s.removeAllRanges) s.removeAllRanges();
    }
    if (document.selection && document.selection.empty) {
        eval('try{document.selection.empty();}catch(e){}');
    }
    // fixup selection
    _update_backing();

    if (suggest._visible || !vseld) return true;
    if (vseld) {
        if (vselx == undefined && vsely == undefined) {
            // turn on v here
            vselm = 1;
            vselx = cursorx + left;
            vsely = cursory + base;
        }
        _willclick(e);
        return true;
    }
    return true;
}
function _mouseup(e) {
    if (suggest._visible || !vseld) return true;
    vseld = false;
    if (vselm && vselx != undefined && vsely != undefined) {
        // okay, we HAVE selection
        var rr = lastreg;
        lastreg = '*';
        term_vi_set('y');
        term_vi_unset('d');
        term_select();
        term_operate();
        lastreg = rr;
    } else {
        vselm = 0;
    }
    _willclick(e);
    return false;
}
function _mouseclick(e) {
    if (!e) e = window.event;
    var y = _yaty(e.clientY);
    if (y >= (term_rows - 1)) return true;
    vselm = 0;
    _cursorto(e);
    return true;
}
function _cursorto(e) {
    if (!e) e = window.event;
    var x = e.clientX;
    var y = e.clientY;
    if (suggest._visible) {
        suggest.style.display = 'none';
        suggest._visible = false;
        statustext = '';
    }
    return _cursortoxy(x, y);
}

function _word(s) {
    var t = s.replace(/[.?!,:]*$/, "");
    if (t) s = t;
    t = s.replace(/[ \r\n\t]/, "");
    if (t) s = t;
    return s;
}
function _safe(s) {
    if (s.match(/^[ \r\n\t]*<.*>[ \r\n\t]*$/)) return true;
    return false;
}
function _xhttp() {
    var xmlhttp = false;
    /*@cc_on @*/
    /*@if (@_jscript_version >= 5)
     try {
     xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
     } catch (e) {
     try {
     xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
     } catch (E) {
     xmlhttp = false;
     }
     }
     @end @*/
    if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
        xmlhttp = new XMLHttpRequest();
    }
    if (!xmlhttp) return new Object(); // fake out caller
    return xmlhttp;
}

function term_setmode(n) {
    mode = n;
    lastinsert = '';
}

function term_roll_yank() {
    registers["9"] = registers["8"];
    registers["8"] = registers["7"];
    registers["7"] = registers["6"];
    registers["6"] = registers["5"];
    registers["5"] = registers["4"];
    registers["4"] = registers["3"];
    registers["3"] = registers["2"];
    registers["2"] = registers["1"];
    registers["1"] = registers["0"];

    if (lastreg == '0') {
        registers[""] = yank_buffer;
    }
    if (lastreg == "" || lastreg == "*") {
        backing._lastvalue = yank_buffer;
        backing.value = yank_buffer;
    }
    registers["0"] = yank_buffer;
}

function term_justify() {
    var y = cursory + base;
    var i;
    if (!accum) accum = 1;
    var t = (file[y]);
    file[p] = t.replace(/[ ][ ]*$/, "");
    tags[p] = tags[p].substr(0, file[p].length);
    for (i = 0; i < accum; i++) {
        var t = file[i + y + 1];
        var g = tags[i + y + 1];
        term_delete(i + y + 1); // ignore return

        t = t.replace(/^[ ][ ]*/, "");
        g = g.substr(g.length - t.length, t.length);
        if (t != '') {
            file[y] = file[y] + " " + t;
            tags[y] = tags[y] + "\0" + g;
        }
    }
    file[y] = file[y].replace(/^[ ][ ]*/, "");
    tags[y] = tags[y].substr(tags[y].length - file[y].length, file[y].length);
    accum = 0;
}

function term_vi_bb() {
    return term_skipbackward(/[ ][^ ][^ ]*[ ]*$/);
}
function term_vi_b() {
    return term_skipbackward(/[^a-zA-Z0-9_][a-zA-Z0-9_][a-zA-Z0-9_]*[^a-zA-Z0-9_]*$/);
}
function term_vi_tt() {
    var t = (file[cursory + base]);
    var i;
    var w = term_cols;
    for (i = (cursorx + left) - 1; i >= 0; i--) {
        var c = (t.substr(i, 1));
        if (c == vi_ft_reg) {
            cursorx = (i - left) + 1;
            if (cursorx >= w) {
                left = 0;
                cursorx = i + 1;
            }
            return true;
        }
    }
    return false;
}
function term_vi_t() {
    var t = (file[cursory + base]);
    var i;
    for (i = (cursorx + left) + 1; i < t.length; i++) {
        var c = (t.substr(i, 1));
        if (c == vi_ft_reg) {
            cursorx = (i - left) - 1;
            if (term_vi_flag('d') || term_vi_flag('c') || term_vi_flag('y')) cursorx++;
            if (cursorx < 0) {
                left = 0;
                cursorx = i - 1;
            }
            return true;
        }
    }
    return false;
}
function term_vi_ff() {
    var t = (file[cursory + base]);
    var i;
    for (i = (cursorx + left) - 1; i >= 0; i--) {
        var c = (t.substr(i, 1));
        if (c == vi_ft_reg) {
            cursorx = i - left;
            if (cursorx < 0) {
                left = 0;
                cursorx = i;
            }
            return true;
        }
    }
    return false;
}
function term_vi_f() {
    var t = (file[cursory + base]);
    var i;
    var w = term_cols;
    for (i = (cursorx + left) + 1; i < t.length; i++) {
        var c = (t.substr(i, 1));
        if (c == vi_ft_reg) {
            cursorx = i - left;
            if (term_vi_flag('d') || term_vi_flag('c') || term_vi_flag('y')) cursorx++;
            if (cursorx >= w) {
                left = 0;
                cursorx = i;
            }
            return true;
        }
    }
    return false;
}
function term_vi_eof() {
    cursorx = 0;
    left = 0;
    base = 0;
    if (accum) {
        cursory = accum - 1;
        return false;
    } else {
        base = file.length - (term_rows - 1);
        cursory = term_rows - 1;
        if (base < 0) {
            base = 0;
            cursory = file.length - 1;
        }
    }
    term_redraw();
    return true;
}
function term_vi_top() {
    cursorx = 0;
    base = 0;
    left = 0;
    if (accum) {
        cursory = accum - 1;
        return false;
    } else {
        cursory = 0;
    }
    return true;
}
function term_vi_h() {
    cursorx--;
    term_scrollto();
    return true;
}
function term_vi_j() {
    cursory++;
    term_scrollto();
    return true;
}
function term_vi_k() {
    cursory--;
    term_scrollto();
    return true;
}
function term_vi_l() {
    cursorx++;
    // hack
    var a = mode;
    mode = 1;
    term_scrollto();
    mode = a;
    return true;
}
function term_vi_ll() {
    cursory = term_rows - 2;
    return true;
}
function term_vi_mm() {
    cursory = parseInt((term_rows - 2) / 2);
    cursorx = 0;
    left = 0;
    return true;
}
function term_vi_hh() {
    cursory = 0;
    return true;
}
function term_vi_ob() {
    cursory--;
    return term_skipreverse2(/^[ ]*$/, 0);
}
function term_vi_cb() {
    cursory++;
    return term_skipforward(/^[ ]*$/, 0);
}
function term_vi_ww() {
    return term_skipforward(/[ ][^ ]/, 0);
}
function term_vi_w() {
    return term_skipforward(/[^a-zA-Z0-9_(){}<>][a-zA-Z0-9_(){}<>]/, 0);
}

function term_vi_flag(f) {
    return (viflags.indexOf(f) == -1) ? false : true;
}
function term_vi_unset(f) {
    var j = viflags.indexOf(f);
    if (j == -1) return;
    viflags = viflags.substr(0, j) + viflags.substr(j + 1, (viflags.length - j) - 1);
}
function term_vi_set(f) {
    if (viflags.indexOf(f) == -1) viflags += '' + f;
}
function term_vi_bounce() {
    var y = cursory + base;
    var t = (file[y]);
    var x = cursorx + left;
    var z1 = '[{()}]';
    var z2 = ']})({[';
    while (x < t.length) {
        var z = z1.indexOf(t.substr(x, 1));
        if (z == -1) {
            x++;
            continue;
        }
        var d = (z > 2) ? -1 : 1;
        var c = z2.substr(z, 1);
        while (y >= 0 && y < file.length) {
            while (x > 0 && x < t.length) {
                if (t.substr(x, 1) == c) {
                    cursorx = x - left;
                    cursory = y;
                    base = 0;
                    term_scrollto();
                    return true;
                }
                x += d;
            }
            if (d == -1) {
                y--;
                t = file[y];
                x = (t.length - 1)
            } else {
                y++;
                t = file[y];
                x = 0;
            }
        }
    }
    return false;
}
function term_vi_eol() {
    var t = (file[cursory + base]);
    cursorx = (t.length) - left;
    if (cursorx < 0) {
        left = 0;
        cursorx = (t.length);
    }
    return true;
}
function term_vi_line() {
    var t = (file[cursory + base]);
    left = 0;
    cursorx = t.length + 1;
    return true;
}
function term_vi_ee() {
    return term_skipforward(/[^ ][ ]/, 1);
}
function term_vi_e() {
    if (term_skipforward(/[a-zA-Z0-9_(){}<>][^a-zA-Z0-9_(){}<>]/, 1)) {
        if (term_vi_flag('d') || term_vi_flag('c') || term_vi_flag('y')) cursorx++;
        return true;
    }
    return false;
}

function term_vi_v() {
    cursorx = vselx - left;
    if (cursorx < 0) {
        left = 0;
        cursorx = vselx;
    }
    cursory = vsely - base;
    if (cursory < 0) {
        base = 0;
        cursory = vsely;
    }
}
function term_vi_vv() {
    term_vi_v();
    term_vi_line();
}

function term_select() {
    if (vselm == 1) {
        term_ex_motion = term_vi_v;
    } else if (vselm == 2) {
        term_ex_motion = term_vi_vv;
        cursorx = 0;
        left = 0;
    }
}
function term_indent(y, amount) {
    if (file[y] == undefined) {
        file[y] = '';
        tags[y] = '';
    }
    file[y] = _mxs(amount * 4, 32) + file[y];
    tags[y] = _mxs(amount * 4, tagstyle) + tags[y];
}
function term_unindent(y, amount) {
    amount *= 4;
    while (amount > 0 && file[y].substr(0, 1) == ' ') {
        file[y] = file[y].substr(1, file[y].length - 1);
        amount--;
    }
}

function term_operate() {
    term_save_undo();

    var fa = accum;
    if (!fa) fa = 1;
    var sx = cursorx + left;
    var sy = cursory + base;
    while (fa > 0) {
        var t = file[base + cursory];
        if (t == undefined) break;
        if (fa > 1 && ((cursorx + left) >= t.length)) {
            cursory++;
            cursorx = 0;
            left = 0;
        }

        term_ex_motion();
        fa--;
    }
    fa = accum;
    if (!fa) fa = 1;
    accum = 0;
    var ex = cursorx + left;
    var ey = cursory + base;
    var i;
    if (ey < sy) {
        i = ey;
        ey = sy;
        sy = i;
    }
    if (ex < sx) {
        i = ex;
        ex = sx;
        sx = i;
    }
    var t = file[ey];
    var g = tags[ey];
    var restore = false;
    if (term_vi_flag('c')) term_vi_set('d');
    if (vselm != 2 && ey == sy && ex <= t.length) {
        if (vselm) ex++;
        if (ex != sx) {
            if (term_vi_flag('F')) {
                // styling
                tags[ey] = (g.substr(0, sx)) + _mxs(ex - sx, tagstyle) + (g.substr(ex, g.length - ex));
            } else if (term_vi_flag('d') || term_vi_flag('y')) {
                yank_buffer = _rtf(t.substr(sx, ex - sx),
                    g.substr(sx, ex - sx));
            }
            if (term_vi_flag('d')) {
                file[ey] = (t.substr(0, sx)) + (t.substr(ex, t.length - ex));
                tags[ey] = (g.substr(0, sx)) + (g.substr(ex, g.length - ex));
                if (lastreg != '_') {
                    registers[lastreg] = yank_buffer;
                    term_roll_yank();
                }
            } else if (term_vi_flag('y')) {
                registers[lastreg] = yank_buffer;
                term_roll_yank();
            }
            if (term_vi_flag('>')) {
                term_indent(ey, fa);
            } else if (term_vi_flag('<')) {
                term_unindent(ey, fa);
            }
        }
    } else if (vselm == 1) {
        if (term_vi_flag('d') || term_vi_flag('y') || term_vi_flag('F')) {
            yank_buffer = '';
            var al, bl;
            for (i = sy; i <= ey; i++) {
                t = file[i];
                g = tags[i];
                if (i == sy) {
                    if ((sy == vsely && sx == vselx) || (sy != vsely && sx != vselx)) {
                        al = sx;
                    } else {
                        al = ex;
                    }
                    bl = t.length;
                } else if (i == ey) {
                    al = 0;
                    if ((sy == vsely && sx == vselx) || (sy != vsely && sx != vselx)) {
                        al = ex;
                    } else {
                        al = sx;
                    }
                } else {
                    al = 0;
                    bl = t.length;
                }
                yank_buffer += _rtf(t.substr(al, bl - al),
                    g.substr(al, bl - al));
                if (sy != ey || vselm == 2) yank_buffer += "\n";
                if (term_vi_flag('d')) {
                    file[i] = t.substr(0, al) + t.substr(bl, t.length - bl);
                    tags[i] = g.substr(0, al) + g.substr(bl, g.length - bl);
                } else if (term_vi_flag('F')) {
                    tags[i] = g.substr(0, al) + _mxs(bl - al, tagstyle)
                        + g.substr(bl, g.length - bl);
                }
                if (term_vi_flag('>')) {
                    term_indent(i, fa);
                } else if (term_vi_flag('<')) {
                    term_unindent(i, fa);
                }
            }
            if (lastreg != '_' && !term_vi_flag('F')) {
                registers[lastreg] = yank_buffer;
                term_roll_yank();
            }
        }
    } else {
        if (term_vi_flag('F')) {
            for (i = sy; i <= ey; i++) {
                tags[i] = _mxs(file[i].length, tagstyle);
            }
        } else if (term_vi_flag('d')) {
            yank_buffer = '';
            for (i = sy; i <= ey; i++) {
                yank_buffer += term_delete(sy);
            }
            if (lastreg != '_') {
                registers[lastreg] = yank_buffer;
                term_roll_yank();
            }
        } else if (term_vi_flag('y')) {
            yank_buffer = '';
            for (i = sy; i <= ey; i++) {
                yank_buffer += _rtfl(sy) + "\n";
            }
            registers[lastreg] = yank_buffer;
            term_roll_yank();
        } else if (term_vi_flag('>')) {
            for (i = sy; i <= ey; i++) {
                term_indent(i, fa);
            }
        } else if (term_vi_flag('<')) {
            for (i = sy; i <= ey; i++) {
                term_unindent(i, fa);
            }
        }
    }

    if (term_vi_flag('d') || term_vi_flag('F') || term_vi_flag('c')) {
        _term_update_printer();
    }
    if (term_vi_flag('d')) {
        term_vi_unset('d');
        lastcommand = 'd';
        lastmotion = term_ex_motion;
        restore = true;
    }
    if (term_vi_flag('y')) {
        term_vi_unset('y');
        restore = true;
    }
    if (term_vi_flag('F')) {
        term_vi_unset('F');
        restore = true;
    }
    lastaccum = accum;
    if (restore) {
        cursorx = sx - left;
        if (cursorx < 0) {
            cursorx = sx;
            left = 0;
        }
        cursory = sy - base;
        if (cursory < 0) {
            cursory = sy;
            base = 0;
        }
        term_scrollto();
    }
    if (term_vi_flag('c')) {
        term_vi_unset('c');
        term_setmode(1);
    }
    accum = 0;
}

function term_save_undo_line() {
    if ((base + cursory) != undoy) {
        undoy = base + cursory;
        undoline = _rtfl(undoy);
    }
}
function term_save_undo() {
    undoset = term_freeze();
}

function term_delete(i) {
    if (i > file.length) return '';
    var j;
    var z = file[i];
    var g = tags[i];
    for (j = i + 1; j < file.length; j++) {
        file[j - 1] = file[j];
        tags[j - 1] = tags[j];
    }
    file = _pop(file);
    return _rtf(z, g) + "\n";
}

function term_skipreverse2(re, fuzz) {
    var y = cursory + base;
    var x = (cursorx + left) + (1 + fuzz);
    for (; ;) {
        var t = file[y];
        if (t == undefined) {
            // beep
            cursory = y - base;
            return false;
        }
        if (fuzz) t += " "; else t = " " + t;
        t = (t.substr(x, t.length - x));
        var aa = re.exec(t);
        if (!aa) {
            y--;
            x = 0;
        } else {
            x += _rel(re, t, aa).length;
            cursorx = x - left;
            cursory = y - base;
            return true;
        }
    }
    return false;
}
function term_skipforward(re, fuzz) {
    var y = cursory + base;
    var x = (cursorx + left) + (1 + fuzz);
    for (; ;) {
        var t = file[y];
        if (t == undefined) {
            // beep
            cursory = y - base;
            return false;
        }
        if (fuzz) t += " "; else t = " " + t;
        t = (t.substr(x, t.length - x));
        var aa = re.exec(t);
        if (!aa) {
            y++;
            x = 0;
        } else {
            x += _rel(re, t, aa).length;
            cursorx = x - left;
            cursory = y - base;
            return true;
        }
    }
    return false;
}
function term_skipbackward(re) {
    var y = cursory + base;
    var x = (cursorx + left) + 1;
    for (; ;) {
        var t = file[y];
        if (t == undefined) {
            // beep
            cursory = 0;
            cursorx = 0;
            return false;
        }
        t = " " + t.substr(0, x - 1);
        if (t == '') {
            y--;
            t = file[y];
            if (t == undefined) continue;
            x = (t.length);
            continue;
        }
        var aa = re.exec(t);
        if (!aa) {
            left = 0;
            cursorx = 0;
            cursory = y - base;
            return true;
        } else {
            x = _rel(re, t, aa).length;
            cursorx = x - left;
            cursory = y - base;
            return true;
        }
    }
    return false;
}

function term_search(s, top, start, bottom) {
    var re = new RegExp(s.substr(1));
    var i;
    if (s.substr(0, 1) == '/') {
        statustext = '';
        re.lastIndex = cursorx + left + 1;
        for (i = start; i < bottom; i++) {
            var t = (file[i]);
            if (i == start) {
                t = t.substr(cursorx + left + 1, t.length - (cursorx + left + 1));
            }
            aa = re.exec(t);
            if (!aa) continue;
            var tx = _rel(re, t, aa).length;
            if (i == start) {
                tx += cursorx + left + 1;
            }
            left = 0;
            base = 0;
            cursorx = tx;
            cursory = i;
            term_scrollto();
            return true;
        }
        statustext = 'search hit BOTTOM, continuing at TOP';
        for (i = top; i <= start; i++) {
            var aa = re.exec(file[i]);
            if (!aa) continue;
            left = 0;
            base = 0;
            cursorx = _rel(re, file[i], aa).length;
            cursory = i;
            term_scrollto();
            return true;
        }
        statustext = 'Pattern not found: ' + s.substr(1);
    } else {
        statustext = '';
        for (i = start; i >= top; i--) {
            var t = file[i];
            if (t == undefined) continue;
            var tail = 0;
            if (i == start) {
                tail = (cursorx + left);
            } else {
                tail = t.length;
            }
            var right = tail;
            while (tail > 0) {
                tail--;
                var xj = t.substr(tail, right - tail);
                var aa = re.exec(xj);
                if (!aa) continue;

                var tx = tail + _rel(re, xj, aa).length;
                left = 0;
                base = 0;
                cursorx = tx;
                cursory = i;
                term_scrollto();
                return true;
            }
        }
        statustext = 'search hit TOP, continuing at BOTTOM';
        for (i = bottom; i >= start; i--) {
            var t = file[i];
            if (t == undefined) continue;
            var tail = t.length;
            while (tail > 0) {
                tail--;
                var xj = t.substr(tail, t.length - tail);
                var aa = re.exec(xj);
                if (!aa) continue;

                cursorx = tail + _rel(re, xj, aa).length;
                cursory = i;
                left = 0;
                base = 0;
                term_scrollto();
                return true;
            }
        }
        statustext = 'Pattern not found: ' + s.substr(1);
    }
    return false;
}
function term_rsearch(s, top, start, bottom) {
    var cx = s.substr(0, 1);
    cx = (cx == '/') ? '?' : "/";
    return term_search(cx + s.substr(1, s.length - 1), top, start, bottom);
}

function _pop(q) {
    var a = new Array();
    var i;
    for (i = 0; i < q.length - 1; i++) {
        a[i] = q[i];
    }
    return a;
}
function _addr(q) {
    if (q == '.') {
        return cursory + base;
    }
    if (q == '$') {
        return file.length - 1;
    }
    if (q.substr(0, 1) == "'") {
        return marks[ q.substr(1, 1) ];
    }
    if (q == "\\/" || q == "\\&") {
        var a = cursory;
        var b = base;
        term_search(lastsearch, 0, cursory + base, file.length);
        var c = cursory + base;
        cursory = a;
        base = b;
        return c;
    }
    if (q == "\\?") {
        var a = cursory;
        var b = base;
        term_rsearch(lastsearch, 0, cursory + base, file.length);
        var c = cursory + base;
        cursory = a;
        base = b;
        return c;
    }
    if (q.substr(0, 1) == "/" || q.substr(0, 1) == "?") {
        var a = cursory;
        var b = base;
        term_search(q, 0, cursory + base, file.length);
        var c = cursory + base;
        cursory = a;
        base = b;
        return c;
    }
    q = parseInt(q) - 1;
    if (q >= file.length - 1) q = file.length - 1;
    if (q < 0) q = 0;
    return q;
}
function term_command(s) {
    var top, start, bottom;
    if (s && s.length > 0 && s.substr(0, 1) == ':') {
        s = s.substr(1, s.length - 1);
        top = cursory + base;
        start = top;
        bottom = top;
    } else {
        top = 0;
        start = cursory + base;
        bottom = file.length;
    }

    // okay, this is kind of tricky
    var i;
    var tok = '';
    var tc = 0;
    var ng = new Array();
    var lastre = undefined;
    var nf = false;
    /// xxx todo implement ! with nf
    for (i = 0; i < s.length; i++) {
        var c = s.substr(i, 1);
        if ((tc == 0 || tc == 1) && "0123456789".indexOf(c) > -1) {
            tc = 1;
            tok = '' + tok + '' + c;
            continue;

        } else if (tc == 1) {
            tc = 0;
            ng[ng.length] = parseInt(tok) - 1;
            tok = '';
        }

        if (c == '%') {
            top = 0;
            bottom = file.length;
            start = cursory + base;
        } else if (c == '!') {
            nf = !nf;
        } else if (c == ',') {
            // do nothing
            while (ng.length > 2) {
                ng = _pop(ng);
            }
        } else if (c == ';') {
            start = ng[ng.length - 1];
            ng = _pop(ng);
            cursory = start;
            base = 0;
            ng = _pop(ng);
        } else if (c == '$') {
            ng[ng.length] = file.length;
        } else if (c == '.') {
            ng[ng.length] = cursory + base;
        } else if (c == "'") {
            // mark
            ng[ng.length] = marks[s.substr(i + 1, 1)];
            i++;

        } else if (c == "\\") {
            i++;
            c = s.substr(i, 1);
            var qq;
            if (c == '?') {
                qq = term_rsearch;
            } else {
                qq = term_search;
            }
            if (ng.length == 1) {
                top = ng[0];
                ng = _pop(ng);
            } else if (ng.length >= 2) {
                top = ng[ng.length - 2];
                bottom = ng[ng.length - 1];
                ng = _pop(_pop(ng));
            }
            if (!qq(lastsearch, top, start, bottom)) {
                return;
            }
            ng[ng.length] = cursory + base;
        } else if (c == "/" || c == "?") {
            var j = i;
            for (i++; i < s.length; i++) {
                var tc = s.substr(i, 1);
                if (tc == "\\") i++;
                else if (tc == c) break;
            }
            lastre = s.substr(j, i - j);
            if (ng.length == 1) {
                top = ng[0];
                ng = _pop(ng);
            } else if (ng.length >= 2) {
                top = ng[ng.length - 2];
                bottom = ng[ng.length - 1];
                ng = _pop(_pop(ng));
            }
            if (!term_search(lastre, top, start, bottom)) {
                return;
            }
            ng[ng.length] = cursory + base;
        } else if (c == " " || c == "\t") {
            continue;
        } else {
            break;
        }
    }
    if (tc == 1) {
        ng[ng.length] = parseInt(tok) - 1;
        tok = '';
        i++;
    }
    if (ng.length == 1) {
        top = ng[0];
        bottom = ng[0];
    } else if (ng.length >= 2) {
        top = ng[ng.length - 2];
        bottom = ng[ng.length - 1];
    }
    if (lastre != undefined) {
        lastsearch = lastre;
        registers["/"] = lastsearch.substr(1, lastsearch.length - 1);
    }

    var cmd2 = s.substr(i, 2);
    var cmd = s.substr(i, 1);

    if (cmd2 == 'wq' || cmd == 'x') {
        editor_disable(true);
    } else if (cmd == '=') {
        statustext = '' + bottom;
        return;
    } else if (cmd2 == 'ha') {
        window.print();
        return;
    } else if (cmd == 'w') {
        var zx = term_freeze();
        if (term._formelement) term._formelement.value = zx;
        statustext = '"/tmp/mess4XbCXM" ' + file.length + 'L, '
            + zx.length + 'C written';

    } else if (!emacsen && s.substr(i, (s.length - i)) == 'emacs') {
        statustext = 'EMACS mode enabled. Press M-x vi to use vi mode';
        emacsen = true;
        mode = 1;

    } else if (emacsen && cmd2 == 'vi') {
        statustext = 'VI mode enabled. Press ESC :emacs to use EMACS mode';
        mode = 0;
        emacsen = false;

    } else if (cmd == 'e' && term._formelement) {
        var zx = term_freeze();
        if (cmd2 != 'e!') {
            if (cmd2 == 'e?') {
                if (!confirm("Your changes will be lost\nAre you sure?")) {
                    return;
                }
            } else if (term._formelement.value != zx) {
                statustext = 'No write since last change (use ! to override)';
                return;
            }
        }
        term_thaw(term._formelement.value);
    } else if (cmd == 'f') {
        var zx = term_freeze();
        statustext = '"/tmp/mess4XbCXM"';
        if (term._formelement.value != zx) {
            statustext += ' [Modified]';
        }
        statustext += ' line ' + (cursory + base + 1) + ' of '
            + file.length + ' col ' + (cursorx + left + 1);

    } else if (cmd == 'h' || s.substr(i, 5) == 'about') {
        statustext = "jsvi \xa9 2006 Internet Connection, Inc";

    } else if (s.substr(i, 4) == 'kwak') {
        term.style.backgroundImage = 'url(ducky.jpg)';
        statustext = 'kwak kwak kwak...';
    } else if (s.substr(i, 3) == 'moo') {
        statustext = 'This editor does not have Super Cow Powers';

    } else if (cmd == 'b') {
        // only one buffer

    } else if (cmd == 'n' || cmd == 'N') {
        statustext = 'There is only one file to edit';

    } else if (cmd == 'q') {
        var zx = term_freeze();
        if (cmd2 != 'q!') {
            if (term._formelement.value != zx) {
                if (cmd2 == 'q?') {
                    if (confirm("Your changes will be lost\nAre you sure?")) {
                        editor_disable(false);
                        return;
                    } else {
                        return;
                    }
                }
                statustext = 'No write since last change (use ! to override)';
                return;
            }
        }
        editor_disable(false);
    } else if (cmd == 'd') {
        // delete lines
        yank_buffer = term_delete(top);
        while (top < bottom) {
            yank_buffer += term_delete(top);
            bottom--;
        }
        if (lastreg != '_') {
            registers[lastreg] = yank_buffer;
            term_roll_yank();
        }
        term_scrollto();
    } else if (cmd == 'u') {
        var z = term_freeze();
        term_thaw(undoset);
        undoset = z;

    } else if (cmd == 'y') {
        yank_buffer = '';
        for (i = top; i < bottom; i++) {
            yank_buffer += (file[i]) + "\n";
        }
        registers[lastreg] = yank_buffer;
        term_roll_yank();

    } else if (cmd == 'F') {
        // styling!
        var y;
        var tadd = 0;
        var tsub = 0;
        var tset = undefined;
        var otc = tagstyle;
        var tg = '=';
        for (y = i + 1; y < s.length; y++) {
            var cy = s.substr(y, 1);
            if (cy == '=' || cy == '+' || cy == '-' || cy == '!') {
                tg = cy;
            } else {
                var fl = 0;
                if (cy == 'b') {
                    fl = 1;
                } else if (cy == 'i') {
                    fl = 16;
                } else if (cy == 'u') {
                    fl = 2;
                } else if (cy == 'o') {
                    fl = 4;
                } else {
                    statustext = 'Unrecognized formatting specifier: ' + cy;
                    return;
                }
                if (tg == '!') {
                    if (tset != undefined) tagstyle = tset;
                    tagstyle = tagstyle ^ fl;
                } else if (tg == '=') {
                    if (tset == undefined) tset = 0;
                    tset = tset + fl;
                } else if (tg == '+') {
                    tadd |= fl;
                } else if (tg == '-') {
                    tsub |= fl;
                }
            }
        }
        if (tset == undefined) {
            tagstyle = ((tagstyle | tadd) | tsub) ^ tsub;
        } else {
            tagstyle = tset;
        }
        // okay, we've set tagstyle
        if (i != 0) {
            // if this happened, then we were given a range(!)
            for (y = top; y <= bottom; y++) {
                if (file[y] == undefined) continue;
                tags[y] = _mxs(file[y].length, tagstyle);
            }
            tagstyle = otc;

        } else if (vselm) {
            term_select();
            term_vi_unset('d');
            term_vi_unset('y');
            term_vi_unset('c');
            term_vi_set('F');
            term_operate();
            tagstyle = otc;
        }


    } else if (cmd == 'g' || cmd == 'v') {
        // okay then
        var y;
        var ng = s.substr(i + 1, (s.length - i) - 1);
        if (cmd == 'v') ng = '!' + ng;
        for (y = 0; y < file.length; y++) {
            base = 0;
            cursory = y;
            term_command(ng);
        }

    } else if (cmd == 't' || cmd2 == 'co') {
        // copy- need address
        var t = s.substr(i, s.length - i).replace(/^[a-z]*[ ]*/);
        var x;
        yank_buffer = "";
        for (x = top; x <= bottom; x++) {
            if (file[x] != undefined) {
                yank_buffer += (file[x]) + "\n";
            }
        }
        var a = cursory;
        var b = base;
        base = 0;
        cursorx = 0;
        left = 0;
        cursory = _addr(t);
        if (cursory < 0) cursory = 0;
        term_paste(false, yank_buffer);
        cursory = a;
        base = b;

    } else if (cmd == 'm') {
        // move- need address
        i++;
        if (s.substr(i, 3) == 'ove') {
            i += 3;
        }
        var t = s.substr(i, s.length - i);
        yank_buffer = term_delete(top);
        while (top < bottom) {
            yank_buffer += term_delete(top);
            bottom--;
        }
        var a = cursory;
        var b = base;
        base = 0;
        cursorx = 0;
        left = 0;
        cursory = _addr(t);
        if (cursory < 0) cursory = 0;
        term_paste(false, yank_buffer);
        cursory = a;
        base = b;

    } else if (cmd == 's') {
        // substitute
        i++;
        // extract regex
        var q = s.substr(i, 1);
        while (q == ' ') {
            i++;
            q = s.substr(i, 1);
        }
        var sep = s.substr(i, 1);
        i++;

        var lr, ls, lf;
        if (sep == '') {
            if (!lastsearch || !lastsubst) {
                statustext = 'No previous substitute regular expression';
                return;
            }
            lr = lastsearch.substr(1, lastsearch.length - 1);
            ls = lastsubst;
            lf = lastflags;
        } else {
            var jj = i;
            var zj;
            for (; i < s.length; i++) {
                zj = s.substr(i, 1);
                if (zj == "\\") {
                    i++;
                } else if (zj == sep) {
                    break;
                }
            }
            lastsearch = "/" + s.substr(jj, i - jj);
            registers["/"] = lastsearch.substr(1, lastsearch.length - 1);
            i++; // sep
            jj = i;
            for (; i < s.length; i++) {
                zj = s.substr(i, 1);
                if (zj == "\\") {
                    i++;
                } else if (zj == sep) {
                    break;
                }
            }
            lastsubst = s.substr(jj, i - jj);
            lastflags = '';
            i++;
            var count = -1;
            for (; i < s.length; i++) {
                zj = s.substr(i, 1);
                if (zj == 'i' || zj == 'g') {
                    lastflags += zj;
                } else {
                    count = parseInt(s.substr(i, s.length - i));
                    if (count > 0) {
                        break;
                    } else {
                        statustext = "Trailing characters";
                        return;
                    }
                }
            }
            var re = new RegExp;
            re.compile(lastsearch.substr(1, lastsearch.length - 1),
                (lastflags.indexOf('i') > -1) ? 'i' : '');
            var hit = false;
            for (i = top; i < bottom; i++) {
                var t = file[i];
                var g = tags[i];
                var aa;
                var st = t;
                aa = re.exec(t);
                if (!aa || aa.length == 0) continue;
                file[i] = '';
                tags[i] = '';
                // okay got a hit, do this vi style
                for (; ;) {
                    t = _rer(re, st, aa);
                    var lt = _rel(re, st, aa);
                    var lg = _resubst(lastsubst, aa);
                    file[i] += lt + lg;
                    tags[i] += g.substr(0, lt.length) + _zeros(lg.length);

                    if (lastflags.indexOf('g') > -1) {
                        st = t;
                        aa = re.exec(t);
                        if (aa && aa.length > 0) continue;
                    }
                    file[i] += t;
                    tags[i] += g.substr(g.length - t.length, t.length);
                    break;
                }
                hit = true;
                if (count > -1) {
                    count--;
                    if (count == 0) break;
                }
            }
            if (!hit) {
                statustext = 'Pattern not found: ' + lastsearch.substr(1, lastsearch.length - 1);
            }
        }

    } else if (cmd == '' && ng.length > 0) {
        base = 0;
        cursory = top;
    } else {
        statustext = "Not an editor command: " + s.substr(i, s.length - i);
    }

}
function _resubst(s, aa) {
    var i;
    var out = '';
    for (i = 0; i < s.length; i++) {
        var zq = s.substr(i, 1);
        if (zq == "\\") {
            zq = s.substr(i, 2);
            if (zq == "\\1") {
                zq = aa[1];
            } else if (zq == "\\2") {
                zq = aa[2];
            } else if (zq == "\\3") {
                zq = aa[3];
            } else if (zq == "\\4") {
                zq = aa[4];
            } else if (zq == "\\5") {
                zq = aa[5];
            } else if (zq == "\\6") {
                zq = aa[6];
            } else if (zq == "\\7") {
                zq = aa[7];
            } else if (zq == "\\8") {
                zq = aa[8];
            } else if (zq == "\\9") {
                zq = aa[9];
            } else {
                zq = s.substr(i + 1, 1);
            }
            i++;
        } else if (zq == "&") {
            zq = aa[0];
        }
        out += zq;
    }
    return out;
}
function _calcy(zx, x, g) {
    if (zx && cursor._lasty != cursory) {
        cursor._lasty = cursory;
        var nh = 0;
        while (zx && zx != document.body) {
            nh += zx.offsetTop;
            zx = zx.offsetParent;
        }
        cursor.style.top = nh + 'px';
    }

    var z = x.substr(cursorx, 1);
    var q = g.substr(cursorx, 1).charCodeAt(0);
    if (cursorx >= x.length || z == undefined || z == "\240" || z == '')
        z = ' ';

    if (cursor._lastch != z || cursor._lastgh != q) {
        if (z == ' ') {
            z = "\240";
            q = 0;
        }
        while (cursor.firstChild)
            cursor.removeChild(cursor.firstChild);
        cursor.appendChild(document.createTextNode(z));

        cursor._lastch = z;
        cursor._lastgh = q;

        if (q & 1) {
            cursor.style.fontWeight = 'bold';
        } else {
            cursor.style.fontWeight = 'normal';
        }
        if (q & 2) {
            cursor.style.textDecoration = 'underline';
        } else {
            cursor.style.textDecoration = 'none';
        }
        if (q & 16) {
            cursor.style.fontStyle = 'italic';
        } else {
            cursor.style.fontStyle = 'normal';
        }
    }
}
function term_calcy() {
    // fixup character inside... burrr
    var xx = file[cursory + base];
    var xg = tags[cursory + base];
    var zleft = left;
    if (cursory == (term_rows - 1)) {
        xx = command + " ";
        zleft = commandleft;
        xg = _mxs(xx.length + 1, 0);
    }
    var gg = term.childNodes;
    if (gg.length > cursory) {
        gg = term.childNodes[cursory];
    } else {
        gg = undefined;
    }
    _calcy(gg, xx.substr(zleft, xx.length - zleft), xg.substr(zleft, xg.length - zleft));
}
function compute_cursor_left() {
    var cursor_left = 0;
    for(var i=0; i<cursorx; i++) {
        var letter = file[cursory + base][i+left];
        cursor_left += hangul.isHangul(letter) ? term_cur_width2 : term_cur_width;
    }
    return cursor_left;
}
function term_calcx() {
    //if (cursorx != cursor._lastx) {
        //cursor.style.left = (cursorx * (term_cur_width)) + 'px';
        //cursor._lastx = cursorx;

        // XXX: may be slow
        cursor.style.left = compute_cursor_left() + 'px';
        //console.log(cursor._lastx, cursorx, (cursorx * (term_cur_width)), cursor.style.left);

        term_calcy();
    //}
}
function term_scrollto() {
    var h = term_rows;
    var w = term_cols;
    var x = cursorx + left;
    var y = cursory + base;
    var t = file[y];
    //console.log('[term_scrollto]', h,w,'x: ', x,', left: ', left, y, ', command: ', command, ',', t);

    if (command == '') h--;

    var ex = parseInt((w / 8));
    if (ex < 4) ex = 4;
    var ey = parseInt((h / 8));
    if (ey < 4) ey = 4;

    while (t == undefined && y > 0) {
        y--;
        t = file[y];
    }
    if (t == undefined) t = '';
    if (x >= t.length) {
        if (mode) x = t.length;
        else x = t.length - 1;
    }
    if (x < 0) x = 0;
    if (y < 0) y = 0;

    if (x < left) {
        left = (x - ex);
        cursorx = ex;
        if (left < 0) {
            left = 0;
            cursorx = 0;
        }
    } else if (x >= left + w) {
        left = (x - w) + ex;
        cursorx = w - ex;
    } else {
        cursorx = x - left;
    }
    if (y < base) {
        base = (y - ey);
        cursory = ey;
        if (base < 0) {
            base = 0;
            cursory = 0;
        }
    } else if (y >= base + h) {
        base = ((y - h) + ey);
        cursory = (h - ey);
    } else {
        cursory = y - base;
    }
    term_calcx();
    term_calcy();
}

function term_insert(y, str) {
    var z = file.length;
    file[z] = '';
    tags[z] = '';
    var i;
    for (i = z; i > y; i--) {
        file[i] = (file[i - 1]);
        tags[i] = (tags[i - 1]);
    }
    file[y] = '';
    tags[y] = '';
}
function term_paste(after, ign) {
    if (ign != undefined) {
        yank_buffer = ign;
    } else {
        registers['.'] = lastinsert;
        registers[':'] = oldcommand;
        registers['%'] = "/tmp/mess4XbCXM";
        registers['#'] = "";
        yank_buffer = registers[lastreg];
    }
    if (yank_buffer == undefined) return false;
    if (yank_buffer.indexOf("\n") > -1) {
        // insert after this line
        if (after) cursory++;
        var nq = yank_buffer.split("\n");
        var nj;
        for (nj = 0; nj < nq.length; nj++) {
            if (nj == (nq.length - 1)) {
                if (nq[nj] == undefined) break;
                if (nq[nj] == '') break;
                // handled specially
                var aa = _hra(nq[nj]);
                file[cursory + base + nj] = aa[0] + (file[cursory + base + nj]);
                tags[cursory + base + nj] = aa[1] + (tags[cursory + base + nj]);
                break;
            }
            term_insert(cursory + base + nj);
            var aa = _hra(nq[nj]);
            file[cursory + base + nj] = aa[0];
            tags[cursory + base + nj] = aa[1];
        }
    } else {
        var t = (file[cursory + base]);
        var g = (tags[cursory + base]);
        var aa = _hra(yank_buffer);
        if (after) cursorx++;
        file[cursory + base] = t.substr(0, cursorx + left)
            + aa[0] + t.substr(cursorx + left, t.length - (cursorx + left));
        tags[cursory + base] = g.substr(0, cursorx + left)
            + aa[1] + g.substr(cursorx + left, g.length - (cursorx + left));
    }
    return true;
}
function term_keyfix(e) {
    if (!e) e = window.event;

    var ch = e.keyCode;
    if (!ch) ch = e.which;

    if (e.DOM_VK_UP) {
        if (e.DOM_VK_UP == ch) ch = 57373;
        else if (e.DOM_VK_DOWN == ch) ch = 57374;
        else if (e.DOM_VK_LEFT == ch) ch = 57375;
        else if (e.DOM_VK_RIGHT == ch) ch = 57376;
    }

    if (ch == 8 || ch == 9 || ch == 37 || ch == 39
        || ch == 38 || ch == 40 || ch == 127
        || ch == 33 || ch == 34 || ch == 36
        || ch == 35 || ch == 45 || ch == 46
        || ch == 27 || ch == 91
        || ch == 57373
        || ch == 57374
        || ch == 57375
        || ch == 57376) {
        if (e.preventDefault) e.preventDefault();
        if (e.stopPropagation) e.stopPropagation();
        term_keypress_inner(e, true);
        e.cancelBubble = true;
        return false;
    } else {
        e.cancelBubble = false;
        return true;
    }

}
function term_keypress(e) {
    if (!e) e = window.event;
    if (e.preventDefault) e.preventDefault();
    if (e.stopPropagation) e.stopPropagation();
    if (suggest._visible) {
        suggest.style.display = 'none';
        suggest._visible = false;
    }
    e.cancelBubble = true;
    term_keypress_inner(e, false);
    return false;
}
function term_keypress_inner(e, synth) {
    // 'ㄱ' 12593
    // '힣' 55203
    //console.log('charCode: ' + e.charCode + ', keyCode: ' + e.keyCode);
//    if(true)
//        return;

    var k = e.which;
    var kc;
    if (e.charCode) {
        if (e.charCode == 27 || e.charCode == 13 || e.charCode == 10
            || e.charCode == 8
            || e.charCode == 9) {
            k = e.charCode;
            kc = String.fromCharCode(e.charCode);
        } else if (e.charCode == 63232) {
            k = 57373;
        } else if (e.charCode == 63233) {
            k = 57374;
        } else if (e.charCode == 63234) {
            k = 57375;
        } else if (e.charCode == 63235) {
            k = 57376;
        } else {
            if (e.charCode == 191) return; // wtf?
            kc = String.fromCharCode(e.charCode);
            k = 0;
        }
    } else if (e.keyCode) {
        k = e.keyCode;
        if (e.DOM_VK_UP) {
            if (e.DOM_VK_UP == k) k = 57373;
            else if (e.DOM_VK_DOWN == k) k = 57374;
            else if (e.DOM_VK_LEFT == k) k = 57375;
            else if (e.DOM_VK_RIGHT == k) k = 57376;
        } else {
            kc = String.fromCharCode(e.keyCode);
        }
        if (k == 191) return; // unicode i think
    } else {
        if (!k || k == 191) return;
        kc = String.fromCharCode(k);
        var i;
    }
    var mod;
    if (e.modifiers) mod = e.modifiers; else mod = 0;
    var ctrl = e.ctrlKey | (mod & 2);
    var shift = e.shiftKey | (mod & 4);
    var meta = e.altKey | e.metaKey | (mod & 1);
    var lk = lastkey;
    lastkey = kc;

    if (kc == undefined) kc = '';

    //console.log('charCode: ' + e.charCode + ', keyCode: ' + e.keyCode, ", k: ", k, ", kc: ", kc, ", mod: ", mod, ", ctrl: ", ctrl, ", shift: ", shift, ", meta: ", ", lk: ", lk, ", mode:", mode, ", emacsen: ", emacsen, "fakemode:", fakemode, ", synth: ", synth);

    if (!emacsen && mode == 0) {
        if (kc == 'U') {
            if ((base + cursory) == undoy) {
                var aa = _hra(undoline);
                file[undoy] = aa[0];
                tags[undoy] = aa[1];
            }
        } else if (kc == 'u' && undoset) {
            var z = term_freeze();
            term_thaw(undoset);
            undoset = z;
        }

        if (kc == 'u' || kc == 'U') {
            term_scrollto();
            term_redraw();
            lastkey = undefined;
            return;
        }
    }

    var fakemode = false;

    // emacsen
    if (emacsen && meta && (kc == 'x' || kc == 'X')) {
        kc = ':'
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (ctrl && (kc == 't' || kc == 'T')) {
        kc = '?'
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (ctrl && (kc == 's' || kc == 'S')) {
        kc = '/'
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (ctrl && (kc == 'k' || kc == 'K')) {
        term_command(':d');
        lastkey = undefined;
        return;
    } else if (emacsen && meta && (kc == 'd' || kc == 'D')) {
        kc = 'D';
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (ctrl && (kc == 'a' || kc == 'A')) {
        kc = '0';
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (ctrl && (kc == 'd' || kc == 'D')) {
        if (emacsen) {
            kc = 'x';
        } else {
            // err...
            if (!accum) accum = term_rows + 1;
            cursory += parseInt(accum / 2) + 2;
            accum = 0;
            term_scrollto();
            term_redraw();
            lk = undefined;
            lastkey = undefined;
            return;
        }
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (ctrl && (kc == 'g' || kc == 'G')) {
        term_command(':f');
        lastkey = undefined;
        return;
    } else if (ctrl && (kc == 'e' || kc == 'E')) {
        if (emacsen) {
            kc = '$';
        } else {
            if (!accum) accum = 1;
            cursory += accum;
            accum = 0;
            term_scrollto();
            term_redraw();
            lk = undefined;
            lastkey = undefined;
            return;
        }
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (emacsen && meta && (kc == 'b' || kc == 'B')) {
        kc = 'b';
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (emacsen && meta && (kc == 'l' || kc == 'L')) {
        kc = 'e';
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (emacsen && meta && (kc == 'f' || kc == 'F')) {
        kc = 'w';
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (ctrl && (kc == 'f' || kc == 'F')) {
        if (emacsen) {
            kc = 'l';
        } else {
            // vi pagedown
            if (!accum) accum = 0;
            cursory += (term_rows * accum);
            accum = 0;
            term_scrollto();
            term_redraw();
            lk = undefined;
            lastkey = undefined;
            return;
        }
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (ctrl && (kc == 'y' || kc == 'Y')) {
        if (emacsen) {
            term_command(':y');
            lastkey = undefined;
            return;
        } else {
            if (!accum) accum = 1;
            cursory -= accum;
            accum = 0;
            term_scrollto();
            term_redraw();
            lk = undefined;
            lastkey = undefined;
            return;
        }
    } else if (ctrl && (kc == 'l' || kc == 'L')) {
        term_redraw();
        lk = undefined;
        lastkey = undefined;
        return;
    } else if (ctrl && (kc == 'u' || kc == 'U')) {
        if (emacsen) {
            // emacs undo
            kc = 'u';
        } else {
            // vi pageup
            if (!accum) accum = term_rows + 1;
            cursory -= parseInt(accum / 2) + 2;
            accum = 0;
            term_scrollto();
            term_redraw();
            lk = undefined;
            lastkey = undefined;
            return;
        }
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    } else if (ctrl && (kc == 'w' || kc == 'W')) {
        // vim uses this for window control; this is actually useful
        fakemode = true;
        term_vi_set('d');
        kc = 'b';
        lk = undefined;
        lastkey = undefined;

    } else if (ctrl && (kc == 'b' || kc == 'B')) {
        if (emacsen) {
            kc = 'h';
        } else {
            // vi pageup
            if (!accum) accum = 1;
            cursory -= (term_rows * accum);
            accum = 0;
            term_scrollto();
            term_redraw();
            lk = undefined;
            lastkey = undefined;
            return;
        }
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
    }

    if (57373 <= k&&k <= 57376 && !synth) {
        // bail
        return
    } else if (!synth && (k < 57373 || k > 57376)) {
        // no touching...
    } else if (k == 31 || k == 40 || k == 57374) { // down
        if (!synth) return;
        fakemode = true;
        kc = 'j';
        lk = undefined;
        lastkey = undefined;
    } else if (k == 30 || k == 38 || k == 57373) { // up
        if (!synth) return;
        fakemode = true;
        kc = 'k';
        lk = undefined;
        lastkey = undefined;
    } else if (k == 28 || k == 37 || k == 57375) { // left
        if (!synth) return;
        fakemode = true;
        kc = ctrl ? 'B' : 'h';
        lk = undefined;
        lastkey = undefined;
    } else if (k == 29 || k == 39 || k == 57376) { // right
        if (!synth) return;
        fakemode = true;
        kc = ctrl ? 'W' : 'l';
        lk = undefined;
        lastkey = undefined;
    } else if (k == 33) { // pageup
        cursory -= term_rows;
        term_scrollto();
        term_redraw();
        lk = undefined;
        lastkey = undefined;
        return;
    } else if (k == 34) { // pagedown
        cursory += term_rows;
        term_scrollto();
        term_redraw();
        lk = undefined;
        lastkey = undefined;
        return;
    } else if (k == 36) { // home
        if (ctrl) {
            lk = 'g';
            kc = 'g';
        } else {
            kc = '0';
        }
        fakemode = true;
        lk = undefined;
        lastkey = undefined;
        accum = 0;
    } else if (k == 35) { // end
        fakemode = true;
        accum = 0;
        if (ctrl) {
            kc = 'G';
        } else {
            kc = '$';
        }
        lk = undefined;
        lastkey = undefined;
    } else if (k == 45) { // insert
        fakemode = true;
        if (mode == 1) {
            mode = 2;
        } else if (mode == 2) {
            mode = 1;
        } else {
            term_setmode(1);
        }
        lk = undefined;
        lastkey = undefined;
        term_redraw();
        return;
    } else if (k == 46) { // delete
        fakemode = true;
        kc = 'x';
        lk = undefined;
        lastkey = undefined;
    } else if (synth && (k != 8 && k != 27)) {
        return;
    }

    term_save_undo_line();

    if (fakemode || mode == 0) {
        if (!fakemode && ctrl) return;
        if (lk == 'F' || lk == 'T' || lk == 'f' || lk == 't') {
            vi_ft_reg = kc;
            if (lk == 'F') {
                term_ex_motion = term_vi_ff;
            } else if (lk == 'T') {
                term_ex_motion = term_vi_tt;
            } else if (lk == 'f') {
                term_ex_motion = term_vi_f;
            } else if (lk == 't') {
                term_ex_motion = term_vi_t;
            }
            term_operate();
            lastkey = undefined;
            term_scrollto();
            term_redraw();
            _update_backing();
            return;
        } else if (lk == 'm') {
            // set mark
            marks[kc] = cursory + base;
            lastkey = undefined;
            accum = 0;
            return;

        } else if (lk == "'") {
            term_ex_motion = function () {
                cursory = marks[kc];
                base = 0;
                term_scrollto();
                term_redraw();
                return true;
            };
            if (!accum) accum = 1;
            term_operate();
            return;

        } else if (lk == '"') {
            // set last register
            lastreg = kc;
            lastkey = undefined;
            accum = 0;
            return;

        } else if (lk == 'r') {
            var p = cursorx + left;
            var t = (file[cursory + base]);
            if (!accum) accum = 1;
            var ng = '';
            var i;
            for (i = 0; i < accum; i++) ng += kc;
            term_save_undo();
            file[cursory + base] = (t.substr(0, p))
                + (ng) + (t.substr(p + accum, t.length - (p + accum)));
            // tags remains unchanged (same length)
            accum = 0;
            lastkey = undefined;
            term_scrollto();
            term_redraw();
            _update_backing();
            _term_update_printer();
            return;
        }

        if (kc == ':' || kc == '/' || kc == '?') {
            command = kc;
            commandleft = 0;
            savex = cursorx;
            savey = cursory;
            cursorx = 1;
            cursory = term_rows - 1;
            mode = 1;
            term_redraw();
            term_calcx();
            return;
        } else if (kc == "'") {
            // jump to mark (ick)
        } else if (kc == '"') {
            // do nothing for now

        } else if (kc == '.') {
            term_vi_set(lastcommand);
            term_ex_motion = lastmotion;
            term_operate();

        } else if (kc == '$') {
            term_ex_motion = term_vi_eol;
            term_operate();

        } else if (kc == '%') {
            if (accum <= 0) {
                term_ex_motion = term_vi_bounce;
                term_operate();
            } else if (file.length > 0) {
                base = 0;
                cursorx = 0;
                left = 0;
                cursory = parseInt(accum * (term_rows / (file.length + 1.0)));
                accum = 0;
            }

        } else if (kc == '0') {
            if (accum) {
                accum *= 10;
            } else {
                cursorx = 0;
                left = 0;
            }
        } else if (kc == '1') {
            accum *= 10;
            accum++;
        } else if (kc == '2') {
            accum *= 10;
            accum += 2;
        } else if (kc == '3') {
            accum *= 10;
            accum += 3;
        } else if (kc == '4') {
            accum *= 10;
            accum += 4;
        } else if (kc == '5') {
            accum *= 10;
            accum += 5;
        } else if (kc == '6') {
            accum *= 10;
            accum += 6;
        } else if (kc == '7') {
            accum *= 10;
            accum += 7;
        } else if (kc == '8') {
            accum *= 10;
            accum += 8;
        } else if (kc == '9') {
            accum *= 10;
            accum += 9;
        } else if (kc == 'A') {
            var t = (file[cursory + base]);
            cursorx = t.length; // will be fixed up...
            term_setmode(1);
            term_save_undo();
        } else if (kc == 'a') {
            term_setmode(1);
            cursorx++;
            term_save_undo();
        } else if (kc == 'B') {
            term_ex_motion = term_vi_bb;
            term_operate();
        } else if (kc == 'b') {
            term_ex_motion = term_vi_b;
            term_operate();
        } else if (kc == 'c') {
            if (term_vi_flag('c')) {
                term_vi_set('d');
                term_vi_unset('c');
                savex = cursorx + left;
                savey = cursory + base;
                cursorx = 0;
                left = 0;
                term_ex_motion = term_vi_line;
                term_operate();
                cursorx = savex - left;
                cursory = savey - base;
                term_setmode(1);
            } else {
                term_vi_set('c');
            }
        } else if (kc == 'C') {
            term_ex_motion = term_vi_eol;
            term_vi_set('d');
            term_operate();
            term_setmode(1);
        } else if (kc == 'D') {
            term_ex_motion = term_vi_eol;
            term_vi_set('d');
            term_operate();
        } else if (kc == 'd') {
            if (vselm) {
                term_vi_set('d');
                term_vi_unset('y');
                term_select();
                term_operate();
                vselm = 0;
            } else if (term_vi_flag('d')) {
                accum++;
                savex = cursorx + left;
                savey = cursory + base;
                cursorx = 0;
                left = 0;
                term_ex_motion = term_vi_line;
                term_operate();
                cursorx = savex - left;
                cursory = savey - base;
            } else {
                term_vi_set('d');
                term_vi_unset('y');
            }
        } else if (kc == '>' || kc == '<') {
            if (vselm) {
                term_vi_unset('<');
                term_vi_unset('>');
                term_vi_set(kc);
                term_vi_unset('d');
                term_vi_unset('y');
                term_operate();
                vselm = 0;
            } else if (term_vi_flag(kc)) {
                accum++;
                savex = cursorx + left;
                savey = cursory + base;
                cursorx = 0;
                left = 0;
                term_ex_motion = term_vi_line;
                term_operate();
                cursorx = savex - left;
                cursory = savey - base;
                term_vi_unset('<');
                term_vi_unset('>');
            } else {
                term_vi_unset('<');
                term_vi_unset('>');
                term_vi_set(kc);
                term_vi_unset('d');
                term_vi_unset('y');
            }

        } else if (kc == 'E') {
            term_ex_motion = term_vi_ee;
            term_operate();
        } else if (kc == 'e') {
            term_ex_motion = term_vi_e;
            term_operate();

        } else if (kc == 'F' || kc == 'f') {
            // does nothing here
        } else if (kc == 'G') {
            term_ex_motion = term_vi_eof;
            term_operate();

        } else if (kc == 'g' && lk == 'g') {
            term_ex_motion = term_vi_top;
            term_operate();

        } else if (kc == 'H') {
            term_ex_motion = term_vi_hh;
            term_operate();

        } else if (kc == 'h') {
            term_ex_motion = term_vi_h;
            term_operate();

        } else if (kc == 'I') {
            term_save_undo();
            if (vselm) {
                term_vi_set('d');
                term_vi_unset('y');
                term_select();
                term_operate();
                vselm = 0;
            }
            term_setmode(1);
            cursorx = 0;
            left = 0;
        } else if (kc == 'i') {
            term_save_undo();
            if (vselm) {
                term_vi_set('d');
                term_vi_unset('y');
                term_select();
                term_operate();
                vselm = 0;
            }
            term_setmode(1);
        } else if (kc == 'J') {
            term_save_undo();
            term_justify();
        } else if (kc == 'j') {
            term_ex_motion = term_vi_j;
            term_operate();
        } else if (kc == 'K') {
            // err..
        } else if (kc == 'k') {
            term_ex_motion = term_vi_k;
            term_operate();
        } else if (kc == 'L') {
            term_ex_motion = term_vi_ll;
            term_operate();
        } else if (kc == 'l') {
            term_ex_motion = term_vi_l;
            term_operate();
        } else if (kc == 'M') {
            term_ex_motion = term_vi_mm;
            term_operate();
        } else if (kc == 'm') {
            // set mark
        } else if (kc == 'N') {
            if (lastsearch == '') {
                statustext = 'No previous regular expression';
            } else {
                if (!accum) accum = 1;
                var sl = lastsearch;
                var cx = lastsearch.substr(0, 1);
                cx = (cx == '?') ? '/' : '?';
                var i;
                for (i = 0; i < accum; i++) {
                    term_command(cx + (sl.substr(1, sl.length - 1)));
                }
                lastsearch = sl;
                accum = 0;
            }
        } else if (kc == 'n') {
            if (lastsearch == '') {
                statustext = 'No previous regular expression';
            } else {
                if (!accum) accum = 1;
                var i;
                for (i = 0; i < accum; i++)
                    term_command(lastsearch);
                accum = 0;
            }
        } else if (kc == 'O') {
            cursorx = 0;
            left = 0;
            term_insert(cursory + base);
            term_setmode(1);
        } else if (kc == 'o') {
            cursory++;
            cursorx = 0;
            left = 0;
            term_insert(cursory + base);
            term_setmode(1);
            term_save_undo();
        } else if (kc == 'P' || kc == 'p') {
            term_save_undo();
            term_paste(kc == 'P' ? false : true);
            accum = 0;

        } else if (kc == 'R') {
            term_save_undo();
            if (vselm) {
                term_vi_set('d');
                term_vi_unset('y');
                term_select();
                term_operate();
                vselm = 0;
            }
            term_setmode(2);

        } else if (kc == 'S') {
            term_vi_set('d');
            term_vi_unset('c');
            savex = cursorx + left;
            savey = cursory + base;
            cursorx = 0;
            left = 0;
            term_ex_motion = term_vi_line;
            term_operate();
            cursorx = savex - left;
            cursory = savey - base;
            term_setmode(1);

        } else if (kc == 's') {
            term_vi_set('d');
            term_vi_unset('c');
            savex = cursorx + left;
            savey = cursory + base;
            term_ex_motion = term_vi_l;
            term_operate();
            cursorx = savex - left;
            cursory = savey - base;
            term_setmode(1);

        } else if (kc == 'T' || kc == 't') {
            // nothing here
        } else if (kc == 'V' || kc == 'v') {
            if (vselm) {
                vselm = 0;
                vselx = undefined;
                vsely = undefined;
            } else {
                vselm = (kc == 'v') ? 1 : 2;
                vselx = cursorx + left;
                vsely = cursory + base;
            }

        } else if (kc == 'W') {
            term_ex_motion = term_vi_ww;
            term_operate();
        } else if (kc == '{') {
            term_ex_motion = term_vi_ob;
            term_operate();
        } else if (kc == '}') {
            term_ex_motion = term_vi_cb;
            term_operate();
        } else if (kc == 'w') {
            term_ex_motion = term_vi_w;
            term_operate();
        } else if (kc == 'x' || kc == 'X') {
            if (term_vi_set('d')) {
                term_vi_unset('d');
            } else {
                term_vi_set('d');
                if (kc == 'x') {
                    term_ex_motion = term_vi_l;
                } else {
                    term_ex_motion = term_vi_h;
                }
                term_operate();
            }
        } else if (kc == 'y') {
            if (vselm) {
                term_vi_set('y');
                term_vi_unset('d');
                term_select();
                term_operate();
                vselm = 0;
            } else if (term_vi_flag('y')) {
                accum++;
                savex = cursorx + left;
                savey = cursory + base;
                cursorx = 0;
                left = 0;
                term_ex_motion = term_vi_line;
                term_operate();
                cursorx = savex - left;
                cursory = savey - base;
            } else {
                term_vi_set('y');
                term_vi_unset('d');
            }
        } else if (kc == 'Z' && lk == 'Z') {
            editor_disable(true);
            accum = 0;
        } else if (k == 27 || (k == 91 && ctrl)) { // escape or ^[
            vselm = 0;
            statustext = '';
            mode = 0;
        } else {
            accum = 0;
        }
        term_scrollto();
    } else if ((k == 27 || (k == 91 && ctrl))) { // escape or ^[
        vselm = 0;
        statustext = '';
        if (command != '') {
            cursorx = savex;
            cursory = savey;
        } else {
            if (mode) _term_update_printer();
            if (accum > 1) {
                var i, j;
                j = lastreg;
                lastreg = '.';
                for (i = 1; i < accum; i++) {
                    term_paste(false);
                }
                lastreg = j;
                accum = 0;
            }
            cursorx--;
            term_scrollto();
        }
        mode = emacsen ? 1 : 0;
        command = '';
        commandleft = 0;
    } else if (command != '') {
        if (k == 10 || k == 13) {
            // cr and execute command
            cursorx = savex;
            cursory = savey;
            if (emacsen) {
                mode = 1;
            } else {
                mode = 0;
            }
            var cy = command;

            command = '';
            commandleft = 0;

            term_command(cy);
            var cx = command.substr(0, 1);
            if (cx == '/' || cx == '?') lastsearch = cy;
            else oldcommand = cy;
            // incase its needed
            term_scrollto();
        } else if (k == 8) {
            if (!synth) return;
            command = command.substr(command, command.length - 1);
            cursorx--;
            if (cursorx <= 0) {
                var w = term_cols;
                commandleft -= (w - 16);
                cursorx = w - 8;
                if (commandleft < 0) {
                    cursorx = savex;
                    cursory = savey;
                    if (emacsen) {
                        mode = 1;
                    } else {
                        mode = 0;
                    }
                }
            }
        } else {
            command = command + kc;
            cursorx++;
            var w = term_cols;
            if (cursorx >= (w - 8)) {
                cursorx = 8;
                commandleft += w - 16;
            }
        }
        term_redraw();
        term_calcx();
        _update_backing();
        return;
    } else {
        var t = (file[cursory + base]);
        var lx = (t.substr(0, cursorx + left));
        var ly = (t.substr(cursorx + left + (mode - 1)));
        var lz = (t.substr(cursorx + left));
        var g = (tags[cursory + base]);
        var gx = (g.substr(0, cursorx + left));
        var gy = (g.substr(cursorx + left + (mode - 1)));
        var gz = (g.substr(cursorx + left));
        if (!lx) lx = '';
        if (k == 9) kc = '        ';
        if (k == 10 || k == 13) {
            // CR
            if (!lz) lz = '';
            file[cursory + base] = lx;
            tags[cursory + base] = gx;
            cursory++;
            cursorx = 0;
            left = 0;
            term_insert(cursory + base);
            file[cursory + base] = lz;
            tags[cursory + base] = gz;
            lastinsert += "\n";
        } else if (k == 8) {
            if (!synth) return;
            // backspace
            file[cursory + base] = lx.substr(0, lx.length - 1) + lz;
            tags[cursory + base] = gx.substr(0, lx.length - 1) + gz;
            lastinsert = lastinsert.substr(0, lastinsert.length - 1);
            cursorx--;
        } else {
            if (kc == '') return;
            //file[cursory + base] = lx + kc + ly;
            var lxkc = _h(lx, kc);
            file[cursory + base] = _h(lxkc, ly);
            tags[cursory + base] = gx + String.fromCharCode(tagstyle) + gy;
            //lastinsert += kc;
            lastinsert = _h(lastinsert, kc);
            var prevcursorx = cursorx;
            //var kclength = kc.length;
            var kclength = lxkc.length - lx.length;
            cursorx = cursorx + kclength;
            //if (lastinsert == "도") {
            //    var a = 1+1;
            //}
            //console.log([cursory, base], file[cursory+base], [lx, kc, ly], lastinsert, [prevcursorx, "+", kc.length, "=", cursorx]);
        }
        term_scrollto();
    }

    term_redraw();
    _update_backing();
    return;
}

function _redraw_cursor() {
    term_draw_cursor(true);
    _update_backing();
}

function term_draw_cursor(tf) {
    // maybe use vertical bar if mode==1 hrm?
    if (!tf || !cursor._opaque) {
        cursor._opaque = true;
        cursor.style.color = palette[1];
        cursor.style.backgroundColor = palette[0];
    } else {
        cursor._opaque = false;
        cursor.style.color = palette[0];
        cursor.style.backgroundColor = palette[1];
    }
}

function _redraw_term_force() {
    while (term.firstChild) term.removeChild(term.firstChild);
}
function _redraw_term() {
    var h = term_rows;
    var w = term_cols;

    var ka, kb;
    var tospell = 0;
    var osp = '';
    var y;
    var tago = new Array();
    var isurl = new Array();
    var ca, cb;
    var sa, sb;
    var qp;
    if (vselm) {
        sa = vsely - base;
        sb = cursory;
        if (sa > sb) {
            zx = sa;
            sa = sb;
            sb = zx;
        }
        ca = vselx - left;
        cb = cursorx;
        if (ca > cb) {
            zx = ca;
            ca = cb;
            cb = zx;
        }
    }
    for (y = 0; y < h; y++) {
        ka = '';
        kb = '';
        var x = file[y + base];
        var g;

        var zleft = 0;
        var cx;
        var j, vj;
        if (y == (h - 1)) {
            if (cursory == y) {
                zleft = commandleft;
                x = command;
                cx = 0;
                statustext = '';
            } else if (emacsen) {
                x = '[' + (mode == 1 ? 'Ins' : 'Ovr') + '] ' + statustext;
                while (x.length < w) {
                    x += ' ';
                }
                cx = 4;
            } else if (vselm == 1) {
                cx = 1;
                x = '-- VISUAL --';
                statustext = '';
            } else if (vselm == 2) {
                cx = 1;
                x = '-- VISUAL LINE --';
                statustext = '';
            } else if (mode == 0) {
                x = statustext;
                cx = 16;
            } else if (mode == 1) {
                cx = 1;
                x = '-- INSERT --';
                statustext = '';
            } else if (mode == 2) {
                cx = 1;
                x = '-- REPLACE --';
                statustext = '';
            }
            g = _mxs(x.length, cx);
        } else if (x == undefined) {
            x = '~';
            g = "\010";
        } else {
            zleft = left;
            g = tags[y + base];
            // do spellchecking
            var p = 0;
            vj = x.split(/[ ,;]+/);
            for (j = 0; j < vj.length; j++) {
                var vx = vj[j];
                var vm = _word(vx);
                if (j != 0) p++;

                if (vx.match(/^(https?|ftp):\/\//)) {
                    g = g.substr(0, p)
                        + _mxo(g.substr(p, vx.length), ((1 + tago.length) * 256))
                        + g.substr(p + vx.length);
                    isurl[tago.length] = true;
                    tago[tago.length] = vx;

                } else if (brokenwords[vm] && !safewords[vm]) {
                    g = g.substr(0, p)
                        + _mxo(g.substr(p, vx.length), ((1 + tago.length) * 256))
                        + g.substr(p + vx.length);
                    isurl[tago.length] = false;
                    tago[tago.length] = vx;
                } else {
                    if (vm.length > 3 && !_safe(vm) && !safewords[vm] && !spelling) {
                        tospell++;
                        osp += escape("c" + tospell) + "="
                            + escape(vm) + "&";
                        spellcheck[tospell] = vm;
                    }
                }
                p += vx.length;
            }
        }
        if (x == undefined) {
            x = '';
            g = '';
        }

        var zx;
        vx = 0;

        // truncate as necessary
        x = x.substr(zleft, x.length - zleft);
        g = g.substr(zleft, g.length - zleft);
        if (x.length >= w) {
            x = x.substr(0, w);
            g = g.substr(0, w);
        }

        if (vselm) {
            if (vselm == 1 && sa == sb && sa == y) {
                // middle of line between ca->cb is selected
                g = g.substr(0, ca) + _mxo(g.substr(ca, (cb - ca) + 1), 4) + g.substr(cb, (g.length - cb) - 1);
            } else if ((sa < y && sb > y) || (vselm == 2 && (sa <= y && sb >= y))) {
                // entire line selected
                g = _mxo(g, 4);
            } else if (sa < y && sb == y) {
                // beginning of line selected (up to q)
                // if (sb is cursory) then q = cursorx otherwise vselx
                qp = (sb == cursory) ? cursorx : (vselx - left);
                g = _mxo(g.substr(0, qp + 1), 4) + g.substr(qp, (g.length - qp) - 1);
            } else if (sa == y && sb > y) {
                // end of line selected (beginning at q)
                // if (sa is cursory) then q = cursorx otherwise vselx
                qp = (sa == cursory) ? cursorx : (vselx - left);
                g = g.substr(0, qp) + _mxo(g.substr(qp, g.length - qp), 4);
            }
        }

        vj = 0;
        g += "\377"; // terminate
        x += " ";
        x = x.replace(/ /g, "\240");

        if (term.childNodes.length > y) {
            zx = term.childNodes[y];
            if (zx._cachex == x && zx._cacheg == g) {
                if (y == cursory) _calcy(zx, x, g);
                continue;
            }

            // as a last ditch effort- to accelerate deletions...
            // and inserts...
            if (term.childNodes.length > (y + 1)) {
                var zy = term.childNodes[y + 1];
                if (zy._cachex == x && zy._cacheg == g) {
                    // okay then, so the NEXT line is the winner
                    // copy its nodes
                    term.removeChild(zy);
                    term.replaceChild(zy, zx);
                    if (zy.nextSibling) {
                        term.insertBefore(zx, zy.nextSibling);
                    } else {
                        term.appendChild(zx);
                    }
                    if (y == cursory) _calcy(zy, x, g);
                    continue;
                }
            }

            // update
            while (zx.firstChild) zx.removeChild(zx.firstChild);
        } else {
            zx = document.createElement('PRE');
            zx.style.display = 'block';
            zx.style.fontFamily = 'monospace';
            zx.style.fontSize = '100%';
            _zmp(zx);
            zx.style.marginBottom = '1px';
        }

        cx = 255;
        var ax = zx;

        for (j = 0; j < x.length; j++) {
            var gx = g.charCodeAt(j);

            if (gx != cx) {
                if (j != vj && ax) {
                    var t = x.substr(vj, (j - vj));
                    if (!t) t = '';
                    ax.appendChild(document.createTextNode(t));
                    if (zx != ax) zx.appendChild(ax);
                    vj = j;
                }

                if (gx > 255) {
                    var wx = parseInt(gx / 256) - 1;

                    ax = document.createElement('A');
                    if (isurl[wx]) {
                        ax.style.borderBottom = '1px double blue';
                        ax.href = tago[wx];
                        ax.target = '_new';
                        ax.ondblclick = _openurl;
                    } else {
                        ax.style.borderBottom = '1px dashed red';
                        ax.href = 'javascript:void(0)';
                        ax.ondblclick = _suggest;
                    }
                    ax._term = _word(tago[wx]);
                    ax._len = tago[wx].length;
                    ax._row = y + base;
                    ax._col = j + zleft;
                    ax.onclick = _subclick;
                } else {
                    ax = document.createElement('SPAN');
                }
                if (gx == 255) gx = 0;
                if (gx & 1) {
                    ax.style.fontWeight = 'bold';
                } else {
                    ax.style.fontWeight = 'normal';
                }
                if (gx & 2) {
                    ax.style.textDecoration = 'underline';
                } else {
                    ax.style.textDecoration = 'none';
                }
                if (gx & 4) { // reverse video
                    ax.style.color = palette[1];
                    ax.style.backgroundColor = palette[0];
                } else {
                    ax.style.color = palette[0];
                    ax.style.backgroundColor = palette[1];
                }
                if (gx & 8) { // unselectable
                    ax.unselectable = true;
                    if (ax.setAttribute) ax.setAttribute('unselectable', 'on');
                    ax.style.color = palette[0];
                    ax.style.backgroundColor = palette[1];
                    ax.style.userSelect = 'none';
                    ax.style['-moz-user-select'] = 'none';
                }
                if (gx & 16) {
                    ax.style.fontStyle = 'italic';
                } else {
                    ax.style.fontStyle = 'normal';
                }
                cx = gx;
            }
        }
        if (j != vj) {
            var t = x.substr(vj, (j - vj) - 1);
            ax.appendChild(document.createTextNode(t));
            if (zx != ax) zx.appendChild(ax);
            vj = j;
        }
        ax.appendChild(document.createTextNode("\240"));
        zx._cachex = x;
        zx._cacheg = g;
        if (term.childNodes.length <= y) {
            term.appendChild(zx);
        }

        if (y == 1) {
            var qx = zx;
            var nh = 0;
            while (qx && qx != document.body) {
                nh += qx.offsetTop;
                qx = qx.offsetParent;
            }
            if (nh != line_height) {
                line_height = nh;
                term_resize();
            }
        }

        if (y == cursory) {
            _calcy(zx, x, g);
        }

        ax = undefined; // break;
    }
    while (term.childNodes.length > h) {
        term.removeChild(term.lastChild);
    }
    zx = undefined; // break

    if (!spelling && tospell > 0) {
        /*
         spelling = true;
        var xh = _xhttp();
        osp = osp.substr(0, osp.length - 1);
        xh.open("GET", "spell.cgi?" + osp, true);
        xh.onreadystatechange = function () {
            if (xh.readyState == 4) {
                var j;
                var a = xh.responseText.split("\n");
                for (j = 0; j < a.length; j++) {
                    var kp = a[j].split("=", 2);
                    var k, v;
                    if (kp.length == 2) {
                        k = kp[0];
                        v = kp[1];
                    } else if (kp.length == 1) {
                        k = kp[0];
                        v = '';
                    } else {
                        k = a[j];
                        v = '';
                    }
                    if (k.substr(0, 1) != 'c') continue;
                    k = k.substr(1, k.length - 1);
                    var term = spellcheck[k];
                    if (v == undefined || v == '') {
                        brokenwords[term] = true;
                        suggestions[term] = new Array();

                    } else if (v == term) {
                        safewords[term] = true;
                    } else {
                        safewords[v] = true;
                        if (!suggestions[term]) {
                            suggestions[term] = new Array();
                        }
                        suggestions[term][ suggestions[term].length ] = v;
                        brokenwords[term] = true;
                    }
                }
                spelling = false;
                window.setTimeout(term_redraw, 10);
                xh = undefined; // break (deferred)
            }
        };
        xh.send(undefined);
        */
    }
    if (cursory == (h - 1)) {
        tools.style.display = 'none';
    } else {
        tools.style.display = 'block';
    }
    _update_backing();
}

function _redraw_term_back() {
    drawiv = undefined;
    _redraw_term();
    term_draw_cursor();
}
function term_redraw() {
    if (drawiv) window.clearTimeout(drawiv);
    drawiv = window.setTimeout(_redraw_term_back, 10);
}

function term_resize() {
    var h = term.offsetHeight;
    var r = line_height;
    if (!line_height) r = cursor.offsetHeight - 1; // 1 px overlap
    var nh = (h / r);
    term_rows = parseInt(nh);
    term_win_height = h;

    h = term.offsetWidth;
    r = (term_cur_width + 1); // 1 px padding
    nh = (h / r);
    term_cols = parseInt(nh);
    term_win_width = h;

    term_redraw();
}
function editor_disable(sav) {
    if (cursoriv) {
        window.clearInterval(cursoriv);
        cursoriv = undefined;
    }

    _cbrestore();

    if (term._formelement) {
        if (sav) term._formelement.value = term_freeze();

        // disconnect
        term._formelement = undefined;
    }

    if (backing.removeEventListener) {
        backing.removeEventListener('DOMAttrModified', _backing_paste, false);
        backing.removeEventListener('Input', _backing_paste, false);
        backing.removeEventListener('input', _backing_paste, false);
    }
    backing.oninput = undefined;
    backing.onInput = undefined;

    document.body.removeChild(suggest);
    document.body.removeChild(term);
    document.body.removeChild(printer);
    document.body.removeChild(tools);
    document.body.removeChild(cursor);

    var z;
    for (z = document.body.firstChild; z; z = z.nextSibling) {
        if (z.tagName && z._flipe) z.style.display = z._orige;
    }

    // bug in firefox: can't remove this
    //document.body.removeChild(backing);
    if (backing.blur) backing.blur();
    backing.style.display = 'none';
    if (document.body.focus) document.body.focus();
    if (document.focus) document.focus();

    document.body.style.overflow = '';
}
function _cursor_fix() {
    term_cur_width = cursor.offsetWidth;

    // 2-byte width
    var cursorValue = cursor.innerHTML;
    cursor.innerHTML = '한';
    term_cur_width2 = cursor.offsetWidth;
    cursor.innerHTML = cursorValue;
}
function _zmp(o) {
    o.style.marginTop = '0px';
    o.style.marginLeft = '0px';
    o.style.marginRight = '0px';
    o.style.marginBottom = '0px';
    o.style.paddingTop = '0px';
    o.style.paddingLeft = '0px';
    o.style.paddingRight = '0px';
    o.style.paddingBottom = '0px';
}
function editor(t) {
    if (term && term._formelement && term._formelement != t) {
        editor_disable(false);
    }

    // okay, find EVERYTHING inside body and display none it
    var z;
    for (z = document.body.firstChild; z; z = z.nextSibling) {
        if (z.tagName) {
            z._orige = z.style.display;
            z._flipe = true;
            z.style.display = 'none';
        }
    }

    if (!term) {
        term = document.createElement('DIV');
        printer = document.createElement('DIV');
        suggest = document.createElement('DIV');
        backing = document.createElement('TEXTAREA');
        tools = document.createElement('DIV');
        cursor = document.createElement('DIV');
    }

//	if (document.documentElement) {
//		_zmp(document.documentElement);
//		document.documentElement.height = '100%';
//		_zmp(document.body);
//		document.body.height = '100%';
//	}

    printer.className = 'print';
    cursor.className = 'editorcursor';
    term.className = 'editor';

    suggest.style.position = 'absolute';
    suggest.style.display = 'none';

    backing.tabIndex = -1;
    backing.style.position = 'absolute';
    backing.style.bottom = '0px';
    backing.style.right = '0px';
    backing.style.width = '1px';
    backing.style.height = '1px';
    backing.style.visibility = 'hidden';
    backing.oninput = _backing_paste;
    backing.onInput = _backing_paste;
    if (backing.addEventListener) {
        backing.addEventListener('DOMAttrModified', _backing_paste, false);
        backing.addEventListener('Input', _backing_paste, false);
        backing.addEventListener('input', _backing_paste, false);
    }
    if (window.addEventListener) {
        window.addEventListener('DOMMouseScroll', _mousescroll, false);
    }
    tools.className = 'editortools';
    tools.style.position = 'absolute';
    tools.style.right = '0px';
    tools.style.bottom = '0px';
    tools.innerHTML = '';
    /*
        + '<input tabindex="-1" type="button" value="B" style="font-weight:bold;" onClick="term_command(\':F!b\');" />'
        + '<input tabindex="-1" type="button" value="I" style="font-style:italic;" onClick="term_command(\':F!i\');" />'
        + '<input tabindex="-1" type="button" value="U" style="text-decoration:underline;" onClick="term_command(\':F!u\');" />'
        + '&nbsp;'
        + '<input tabindex="-1" type="button" value="Print" onClick="term_command(\':ha\');" />'
        + '&nbsp;'
        + '<input tabindex="-1" type="button" value="Abort" onClick="term_command(\':q?\');" />'
        + '<input tabindex="-1" type="button" value="Save and Close" onClick="term_command(\':wq\');" />'
        */
    cursor.onclick = _pass_click;
    cursor.ondblclick = _pass_dblclick;

    document.body.appendChild(suggest);
    document.body.appendChild(term);
    document.body.appendChild(printer);
    document.body.appendChild(tools);
    // firefox bug
    if (once) document.body.appendChild(backing);
    document.body.appendChild(cursor);

    cursoriv = window.setInterval(_redraw_cursor, 200);

    term.style.position = 'absolute';
    term.style.top = '0px';
    term.style.left = '0px';
    term.style.display = 'block';
    term.style.overflow = 'hidden';
    term.style.width = '100%';
    term.style.height = '100%';
    term.style.cursor = 'default';
    term.style.fontFamily = 'monospace';
    term.style.fontSize = '100%';
    _zmp(term);
    term._formelement = t;
    document.body.style.overflow = 'hidden';
    tools.style.display = 'block';

    _cbd('select', _cancel_ev);
    _cbd('selectstart', _cancel_ev);
    _cbd('keydown', term_keyfix);
    _cbd('keypress', term_keypress);
    _cbd('paste', _msie_paste);
    _cbd('click', _mouseclick);
    _cbd('mousedown', _mousedown);
    _cbd('mousemove', _mousemove);
    _cbd('mouseup', _mouseup);
    _cbd('mousewheel', _mousescroll);

    vselm = 0;
    vseld = false;
    vselx = undefined;
    vsely = undefined;

    t.blur();
    cursorx = 0;
    cursory = 0;
    cursor.style.position = 'absolute';
    cursor.style.top = 0;
    cursor.style.left = 0;
    cursor.style.fontFamily = 'monospace';
    cursor.style.fontSize = '100%';
    cursor.style.width = 'auto';
    cursor.style.cursor = 'default';
    _zmp(cursor);
    cursor.style.overflow = 'hidden';
    cursor.innerHTML = 'X';
    cursor._opaque = false;
    cursor._lasty = -1;
    cursor._lastx = -1;
    cursor._lastch = '-xyz-';
    cursor._lastgh = 0;
    palette = undefined;

    if (document.defaultView && document.defaultView.getComputedStyle) {
        palette = new Array();
        var cs = document.defaultView.getComputedStyle(term, null);
        palette[0] = cs.color;
        palette[1] = cs.backgroundColor;
    } else if (window.getComputedStyle) {
        palette = new Array();
        var cs = window.getComputedStyle(term, null);
        palette[0] = cs.color;
        palette[1] = cs.backgroundColor;
    } else if (term.currentStyle) {
        palette = new Array();
        palette[0] = term.currentStyle.color;
        palette[1] = term.currentStyle.backgroundColor;
    }

    if (emacsen) {
        mode = 1;
    } else {
        mode = 0;
    }

    once = false;

    backing._lastvalue = '';
    backing.value = '';
    backing.defaultValue = '';
    suggest._visible = false;
    suggest.display = 'none';

    tools.style.backgroundColor = palette[0];
    _dfx(tools);

    // degrading...
    file = new Array();
    tags = new Array();
    var st = t.value.split("\n");
    var j;
    for (j = 0; j < st.length; j++) {
        if (st[j].substr(st[j].length - 1, 1) == "\r") {
            st[j] = st[j].substr(0, st[j].length - 1);
        }
        var aa = _hra(st[j]);
        file[j] = aa[0];
        tags[j] = aa[1];
    }
    // fix
    t.value = term_freeze();
    _term_update_printer();

    cursor.style.display = 'inline';
    _cursor_fix();
    window.setTimeout(term_redraw, 1);
    term_resize();

    _cbw('resize', term_resize);
    _cbw('beforeprint', _term_update_printer);
    _update_backing();
}