/************************************************************
 Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.

 Permission to use, copy, modify, and distribute this
 software and its documentation for any purpose and without
 fee is hereby granted, provided that the above copyright
 notice appear in all copies and that both that copyright
 notice and this permission notice appear in supporting
 documentation, and that the name of Silicon Graphics not be
 used in advertising or publicity pertaining to distribution
 of the software without specific prior written permission.
 Silicon Graphics makes no representation about the suitability
 of this software for any purpose. It is provided "as is"
 without any express or implied warranty.

 SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
 GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
 THE USE OR PERFORMANCE OF THIS SOFTWARE.

 ********************************************************/

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>

#include <X11/Xos.h>

#include <X11/X.h>
#include <X11/Xproto.h>
#include <X11/extensions/XKMformat.h>
#include "misc.h"
#include "inputstr.h"
#include "dix.h"
#include "xkbstr.h"
#define XKBSRV_NEED_FILE_FUNCS	1
#include <xkbsrv.h>
#include "xkbgeom.h"

/***====================================================================***/

#define NUM_BUFFER      8
static struct textBuffer {
    int size;
    char *buffer;
} textBuffer[NUM_BUFFER];
static int textBufferIndex;

static char *
tbGetBuffer(unsigned size)
{
    struct textBuffer *tb;

    tb = &textBuffer[textBufferIndex];
    textBufferIndex = (textBufferIndex + 1) % NUM_BUFFER;

    if (size > tb->size) {
        free(tb->buffer);
        tb->buffer = xnfalloc(size);
        tb->size = size;
    }
    return tb->buffer;
}

/***====================================================================***/

static inline char *
tbGetBufferString(const char *str)
{
    size_t size = strlen(str) + 1;
    char *rtrn = tbGetBuffer((unsigned) size);

    if (rtrn != NULL)
        memcpy(rtrn, str, size);

    return rtrn;
}

/***====================================================================***/

char *
XkbAtomText(Atom atm, unsigned format)
{
    const char *atmstr;
    char *rtrn, *tmp;

    atmstr = NameForAtom(atm);
    if (atmstr != NULL) {
        rtrn = tbGetBufferString(atmstr);
    }
    else {
        rtrn = tbGetBuffer(1);
        rtrn[0] = '\0';
    }
    if (format == XkbCFile) {
        for (tmp = rtrn; *tmp != '\0'; tmp++) {
            if ((tmp == rtrn) && (!isalpha(*tmp)))
                *tmp = '_';
            else if (!isalnum(*tmp))
                *tmp = '_';
        }
    }
    return XkbStringText(rtrn, format);
}

/***====================================================================***/

char *
XkbVModIndexText(XkbDescPtr xkb, unsigned ndx, unsigned format)
{
    register int len;
    register Atom *vmodNames;
    char *rtrn;
    const char *tmp;
    char numBuf[20];

    if (xkb && xkb->names)
        vmodNames = xkb->names->vmods;
    else
        vmodNames = NULL;

    tmp = NULL;
    if (ndx >= XkbNumVirtualMods)
        tmp = "illegal";
    else if (vmodNames && (vmodNames[ndx] != None))
        tmp = NameForAtom(vmodNames[ndx]);
    if (tmp == NULL) {
        snprintf(numBuf, sizeof(numBuf), "%d", ndx);
        tmp = numBuf;
    }

    len = strlen(tmp) + 1;
    if (format == XkbCFile)
        len += 5;
    rtrn = tbGetBuffer(len);
    if (format == XkbCFile) {
        strcpy(rtrn, "vmod_");
        strncpy(&rtrn[5], tmp, len - 5);
    }
    else
        strncpy(rtrn, tmp, len);
    return rtrn;
}

#define VMOD_BUFFER_SIZE        512

char *
XkbVModMaskText(XkbDescPtr xkb,
                unsigned modMask, unsigned mask, unsigned format)
{
    register int i, bit;
    int len;
    char *mm, *rtrn;
    char *str, buf[VMOD_BUFFER_SIZE];

    if ((modMask == 0) && (mask == 0)) {
        const int rtrnsize = 5;
        rtrn = tbGetBuffer(rtrnsize);
        if (format == XkbCFile)
            snprintf(rtrn, rtrnsize, "0");
        else
            snprintf(rtrn, rtrnsize, "none");
        return rtrn;
    }
    if (modMask != 0)
        mm = XkbModMaskText(modMask, format);
    else
        mm = NULL;

    str = buf;
    buf[0] = '\0';
    if (mask) {
        char *tmp;

        for (i = 0, bit = 1; i < XkbNumVirtualMods; i++, bit <<= 1) {
            if (mask & bit) {
                tmp = XkbVModIndexText(xkb, i, format);
                len = strlen(tmp) + 1 + (str == buf ? 0 : 1);
                if (format == XkbCFile)
                    len += 4;
                if ((str - buf) + len > VMOD_BUFFER_SIZE)
                    continue; /* Skip */
                if (str != buf) {
                    if (format == XkbCFile)
                        *str++ = '|';
                    else
                        *str++ = '+';
                    len--;
                }
                if (format == XkbCFile)
                    sprintf(str, "%sMask", tmp);
                else
                    strcpy(str, tmp);
                str = &str[len - 1];
            }
        }
        str = buf;
    }
    else
        str = NULL;
    if (mm)
        len = strlen(mm);
    else
        len = 0;
    if (str)
        len += strlen(str) + (mm == NULL ? 0 : 1);
    rtrn = tbGetBuffer(len + 1);
    rtrn[0] = '\0';

    if (mm != NULL) {
        i = strlen(mm);
        if (i > len)
            i = len;
        strcpy(rtrn, mm);
    }
    else {
        i = 0;
    }
    if (str != NULL) {
        if (mm != NULL) {
            if (format == XkbCFile)
                strcat(rtrn, "|");
            else
                strcat(rtrn, "+");
        }
        strncat(rtrn, str, len - i);
    }
    rtrn[len] = '\0';
    return rtrn;
}

static const char *modNames[XkbNumModifiers] = {
    "Shift", "Lock", "Control", "Mod1", "Mod2", "Mod3", "Mod4", "Mod5"
};

char *
XkbModIndexText(unsigned ndx, unsigned format)
{
    char buf[100];

    if (format == XkbCFile) {
        if (ndx < XkbNumModifiers)
            snprintf(buf, sizeof(buf), "%sMapIndex", modNames[ndx]);
        else if (ndx == XkbNoModifier)
            snprintf(buf, sizeof(buf), "XkbNoModifier");
        else
            snprintf(buf, sizeof(buf), "0x%02x", ndx);
    }
    else {
        if (ndx < XkbNumModifiers)
            strcpy(buf, modNames[ndx]);
        else if (ndx == XkbNoModifier)
            strcpy(buf, "none");
        else
            snprintf(buf, sizeof(buf), "ILLEGAL_%02x", ndx);
    }
    return tbGetBufferString(buf);
}

char *
XkbModMaskText(unsigned mask, unsigned format)
{
    register int i, bit;
    char buf[64], *rtrn;

    if ((mask & 0xff) == 0xff) {
        if (format == XkbCFile)
            strcpy(buf, "0xff");
        else
            strcpy(buf, "all");
    }
    else if ((mask & 0xff) == 0) {
        if (format == XkbCFile)
            strcpy(buf, "0");
        else
            strcpy(buf, "none");
    }
    else {
        char *str = buf;

        buf[0] = '\0';
        for (i = 0, bit = 1; i < XkbNumModifiers; i++, bit <<= 1) {
            if (mask & bit) {
                if (str != buf) {
                    if (format == XkbCFile)
                        *str++ = '|';
                    else
                        *str++ = '+';
                }
                strcpy(str, modNames[i]);
                str = &str[strlen(str)];
                if (format == XkbCFile) {
                    strcpy(str, "Mask");
                    str += 4;
                }
            }
        }
    }
    rtrn = tbGetBufferString(buf);
    return rtrn;
}

/***====================================================================***/

 /*ARGSUSED*/ char *
XkbConfigText(unsigned config, unsigned format)
{
    static char *buf;
    const int bufsize = 32;

    buf = tbGetBuffer(bufsize);
    switch (config) {
    case XkmSemanticsFile:
        strcpy(buf, "Semantics");
        break;
    case XkmLayoutFile:
        strcpy(buf, "Layout");
        break;
    case XkmKeymapFile:
        strcpy(buf, "Keymap");
        break;
    case XkmGeometryFile:
    case XkmGeometryIndex:
        strcpy(buf, "Geometry");
        break;
    case XkmTypesIndex:
        strcpy(buf, "Types");
        break;
    case XkmCompatMapIndex:
        strcpy(buf, "CompatMap");
        break;
    case XkmSymbolsIndex:
        strcpy(buf, "Symbols");
        break;
    case XkmIndicatorsIndex:
        strcpy(buf, "Indicators");
        break;
    case XkmKeyNamesIndex:
        strcpy(buf, "KeyNames");
        break;
    case XkmVirtualModsIndex:
        strcpy(buf, "VirtualMods");
        break;
    default:
        snprintf(buf, bufsize, "unknown(%d)", config);
        break;
    }
    return buf;
}

/***====================================================================***/

char *
XkbKeysymText(KeySym sym, unsigned format)
{
    static char buf[32];

    if (sym == NoSymbol)
        strcpy(buf, "NoSymbol");
    else
        snprintf(buf, sizeof(buf), "0x%lx", (long) sym);
    return buf;
}

char *
XkbKeyNameText(char *name, unsigned format)
{
    char *buf;

    if (format == XkbCFile) {
        buf = tbGetBuffer(5);
        memcpy(buf, name, 4);
        buf[4] = '\0';
    }
    else {
        int len;

        buf = tbGetBuffer(7);
        buf[0] = '<';
        memcpy(&buf[1], name, 4);
        buf[5] = '\0';
        len = strlen(buf);
        buf[len++] = '>';
        buf[len] = '\0';
    }
    return buf;
}

/***====================================================================***/

static const char *siMatchText[5] = {
    "NoneOf", "AnyOfOrNone", "AnyOf", "AllOf", "Exactly"
};

const char *
XkbSIMatchText(unsigned type, unsigned format)
{
    static char buf[40];
    const char *rtrn;

    switch (type & XkbSI_OpMask) {
    case XkbSI_NoneOf:
        rtrn = siMatchText[0];
        break;
    case XkbSI_AnyOfOrNone:
        rtrn = siMatchText[1];
        break;
    case XkbSI_AnyOf:
        rtrn = siMatchText[2];
        break;
    case XkbSI_AllOf:
        rtrn = siMatchText[3];
        break;
    case XkbSI_Exactly:
        rtrn = siMatchText[4];
        break;
    default:
        snprintf(buf, sizeof(buf), "0x%x", type & XkbSI_OpMask);
        return buf;
    }
    if (format == XkbCFile) {
        if (type & XkbSI_LevelOneOnly)
            snprintf(buf, sizeof(buf), "XkbSI_LevelOneOnly|XkbSI_%s", rtrn);
        else
            snprintf(buf, sizeof(buf), "XkbSI_%s", rtrn);
        rtrn = buf;
    }
    return rtrn;
}

/***====================================================================***/

static const char *imWhichNames[] = {
    "base",
    "latched",
    "locked",
    "effective",
    "compat"
};

char *
XkbIMWhichStateMaskText(unsigned use_which, unsigned format)
{
    int len, bufsize;
    unsigned i, bit, tmp;
    char *buf;

    if (use_which == 0) {
        buf = tbGetBuffer(2);
        strcpy(buf, "0");
        return buf;
    }
    tmp = use_which & XkbIM_UseAnyMods;
    for (len = i = 0, bit = 1; tmp != 0; i++, bit <<= 1) {
        if (tmp & bit) {
            tmp &= ~bit;
            len += strlen(imWhichNames[i]) + 1;
            if (format == XkbCFile)
                len += 9;
        }
    }
    bufsize = len + 1;
    buf = tbGetBuffer(bufsize);
    tmp = use_which & XkbIM_UseAnyMods;
    for (len = i = 0, bit = 1; tmp != 0; i++, bit <<= 1) {
        if (tmp & bit) {
            tmp &= ~bit;
            if (format == XkbCFile) {
                if (len != 0)
                    buf[len++] = '|';
                snprintf(&buf[len], bufsize - len,
                         "XkbIM_Use%s", imWhichNames[i]);
                buf[len + 9] = toupper((unsigned char)buf[len + 9]);
            }
            else {
                if (len != 0)
                    buf[len++] = '+';
                snprintf(&buf[len], bufsize - len, "%s", imWhichNames[i]);
            }
            len += strlen(&buf[len]);
        }
    }
    return buf;
}

static const char *ctrlNames[] = {
    "repeatKeys",
    "slowKeys",
    "bounceKeys",
    "stickyKeys",
    "mouseKeys",
    "mouseKeysAccel",
    "accessXKeys",
    "accessXTimeout",
    "accessXFeedback",
    "audibleBell",
    "overlay1",
    "overlay2",
    "ignoreGroupLock"
};

char *
XkbControlsMaskText(unsigned ctrls, unsigned format)
{
    int len;
    unsigned i, bit, tmp;
    char *buf;

    if (ctrls == 0) {
        buf = tbGetBuffer(5);
        if (format == XkbCFile)
            strcpy(buf, "0");
        else
            strcpy(buf, "none");
        return buf;
    }
    tmp = ctrls & XkbAllBooleanCtrlsMask;
    for (len = i = 0, bit = 1; tmp != 0; i++, bit <<= 1) {
        if (tmp & bit) {
            tmp &= ~bit;
            len += strlen(ctrlNames[i]) + 1;
            if (format == XkbCFile)
                len += 7;
        }
    }
    buf = tbGetBuffer(len + 1);
    tmp = ctrls & XkbAllBooleanCtrlsMask;
    for (len = i = 0, bit = 1; tmp != 0; i++, bit <<= 1) {
        if (tmp & bit) {
            tmp &= ~bit;
            if (format == XkbCFile) {
                if (len != 0)
                    buf[len++] = '|';
                sprintf(&buf[len], "Xkb%sMask", ctrlNames[i]);
                buf[len + 3] = toupper(buf[len + 3]);
            }
            else {
                if (len != 0)
                    buf[len++] = '+';
                sprintf(&buf[len], "%s", ctrlNames[i]);
            }
            len += strlen(&buf[len]);
        }
    }
    return buf;
}

/***====================================================================***/

char *
XkbStringText(char *str, unsigned format)
{
    char *buf;
    register char *in, *out;
    int len;
    Bool ok;

    if (str == NULL) {
        buf = tbGetBuffer(2);
        buf[0] = '\0';
        return buf;
    }
    else if (format == XkbXKMFile)
        return str;
    for (ok = TRUE, len = 0, in = str; *in != '\0'; in++, len++) {
        if (!isprint(*in)) {
            ok = FALSE;
            switch (*in) {
            case '\n':
            case '\t':
            case '\v':
            case '\b':
            case '\r':
            case '\f':
                len++;
                break;
            default:
                len += 4;
                break;
            }
        }
    }
    if (ok)
        return str;
    buf = tbGetBuffer(len + 1);
    for (in = str, out = buf; *in != '\0'; in++) {
        if (isprint(*in))
            *out++ = *in;
        else {
            *out++ = '\\';
            if (*in == '\n')
                *out++ = 'n';
            else if (*in == '\t')
                *out++ = 't';
            else if (*in == '\v')
                *out++ = 'v';
            else if (*in == '\b')
                *out++ = 'b';
            else if (*in == '\r')
                *out++ = 'r';
            else if (*in == '\f')
                *out++ = 'f';
            else if ((*in == '\033') && (format == XkbXKMFile)) {
                *out++ = 'e';
            }
            else {
                *out++ = '0';
                sprintf(out, "%o", (unsigned char) *in);
                while (*out != '\0')
                    out++;
            }
        }
    }
    *out++ = '\0';
    return buf;
}

/***====================================================================***/

char *
XkbGeomFPText(int val, unsigned format)
{
    int whole, frac;
    char *buf;
    const int bufsize = 13;

    buf = tbGetBuffer(bufsize);
    if (format == XkbCFile) {
        snprintf(buf, bufsize, "%d", val);
    }
    else {
        whole = val / XkbGeomPtsPerMM;
        frac = abs(val % XkbGeomPtsPerMM);
        if (frac != 0) {
            if (val < 0)
            {
                int wholeabs;
                wholeabs = abs(whole);
                snprintf(buf, bufsize, "-%d.%d", wholeabs, frac);
            }
            else
                snprintf(buf, bufsize, "%d.%d", whole, frac);
        }
        else
            snprintf(buf, bufsize, "%d", whole);
    }
    return buf;
}

char *
XkbDoodadTypeText(unsigned type, unsigned format)
{
    char *buf;

    if (format == XkbCFile) {
        const int bufsize = 24;
        buf = tbGetBuffer(bufsize);
        if (type == XkbOutlineDoodad)
            strcpy(buf, "XkbOutlineDoodad");
        else if (type == XkbSolidDoodad)
            strcpy(buf, "XkbSolidDoodad");
        else if (type == XkbTextDoodad)
            strcpy(buf, "XkbTextDoodad");
        else if (type == XkbIndicatorDoodad)
            strcpy(buf, "XkbIndicatorDoodad");
        else if (type == XkbLogoDoodad)
            strcpy(buf, "XkbLogoDoodad");
        else
            snprintf(buf, bufsize, "UnknownDoodad%d", type);
    }
    else {
        const int bufsize = 12;
        buf = tbGetBuffer(bufsize);
        if (type == XkbOutlineDoodad)
            strcpy(buf, "outline");
        else if (type == XkbSolidDoodad)
            strcpy(buf, "solid");
        else if (type == XkbTextDoodad)
            strcpy(buf, "text");
        else if (type == XkbIndicatorDoodad)
            strcpy(buf, "indicator");
        else if (type == XkbLogoDoodad)
            strcpy(buf, "logo");
        else
            snprintf(buf, bufsize, "unknown%d", type);
    }
    return buf;
}

static const char *actionTypeNames[XkbSA_NumActions] = {
    "NoAction",
    "SetMods", "LatchMods", "LockMods",
    "SetGroup", "LatchGroup", "LockGroup",
    "MovePtr",
    "PtrBtn", "LockPtrBtn",
    "SetPtrDflt",
    "ISOLock",
    "Terminate", "SwitchScreen",
    "SetControls", "LockControls",
    "ActionMessage",
    "RedirectKey",
    "DeviceBtn", "LockDeviceBtn"
};

const char *
XkbActionTypeText(unsigned type, unsigned format)
{
    static char buf[32];
    const char *rtrn;

    if (type <= XkbSA_LastAction) {
        rtrn = actionTypeNames[type];
        if (format == XkbCFile) {
            snprintf(buf, sizeof(buf), "XkbSA_%s", rtrn);
            return buf;
        }
        return rtrn;
    }
    snprintf(buf, sizeof(buf), "Private");
    return buf;
}

/***====================================================================***/

static int
TryCopyStr(char *to, const char *from, int *pLeft)
{
    register int len;

    if (*pLeft > 0) {
        len = strlen(from);
        if (len < ((*pLeft) - 3)) {
            strcat(to, from);
            *pLeft -= len;
            return TRUE;
        }
    }
    *pLeft = -1;
    return FALSE;
}

 /*ARGSUSED*/ static Bool
CopyNoActionArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    return TRUE;
}

static Bool
CopyModActionArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbModAction *act;
    unsigned tmp;

    act = &action->mods;
    tmp = XkbModActionVMods(act);
    TryCopyStr(buf, "modifiers=", sz);
    if (act->flags & XkbSA_UseModMapMods)
        TryCopyStr(buf, "modMapMods", sz);
    else if (act->real_mods || tmp) {
        TryCopyStr(buf,
                   XkbVModMaskText(xkb, act->real_mods, tmp, XkbXKBFile), sz);
    }
    else
        TryCopyStr(buf, "none", sz);
    if (act->type == XkbSA_LockMods)
        return TRUE;
    if (act->flags & XkbSA_ClearLocks)
        TryCopyStr(buf, ",clearLocks", sz);
    if (act->flags & XkbSA_LatchToLock)
        TryCopyStr(buf, ",latchToLock", sz);
    return TRUE;
}

 /*ARGSUSED*/ static Bool
CopyGroupActionArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbGroupAction *act;
    char tbuf[32];

    act = &action->group;
    TryCopyStr(buf, "group=", sz);
    if (act->flags & XkbSA_GroupAbsolute)
        snprintf(tbuf, sizeof(tbuf), "%d", XkbSAGroup(act) + 1);
    else if (XkbSAGroup(act) < 0)
        snprintf(tbuf, sizeof(tbuf), "%d", XkbSAGroup(act));
    else
        snprintf(tbuf, sizeof(tbuf), "+%d", XkbSAGroup(act));
    TryCopyStr(buf, tbuf, sz);
    if (act->type == XkbSA_LockGroup)
        return TRUE;
    if (act->flags & XkbSA_ClearLocks)
        TryCopyStr(buf, ",clearLocks", sz);
    if (act->flags & XkbSA_LatchToLock)
        TryCopyStr(buf, ",latchToLock", sz);
    return TRUE;
}

 /*ARGSUSED*/ static Bool
CopyMovePtrArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbPtrAction *act;
    int x, y;
    char tbuf[32];

    act = &action->ptr;
    x = XkbPtrActionX(act);
    y = XkbPtrActionY(act);
    if ((act->flags & XkbSA_MoveAbsoluteX) || (x < 0))
        snprintf(tbuf, sizeof(tbuf), "x=%d", x);
    else
        snprintf(tbuf, sizeof(tbuf), "x=+%d", x);
    TryCopyStr(buf, tbuf, sz);

    if ((act->flags & XkbSA_MoveAbsoluteY) || (y < 0))
        snprintf(tbuf, sizeof(tbuf), ",y=%d", y);
    else
        snprintf(tbuf, sizeof(tbuf), ",y=+%d", y);
    TryCopyStr(buf, tbuf, sz);
    if (act->flags & XkbSA_NoAcceleration)
        TryCopyStr(buf, ",!accel", sz);
    return TRUE;
}

 /*ARGSUSED*/ static Bool
CopyPtrBtnArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbPtrBtnAction *act;
    char tbuf[32];

    act = &action->btn;
    TryCopyStr(buf, "button=", sz);
    if ((act->button > 0) && (act->button < 6)) {
        snprintf(tbuf, sizeof(tbuf), "%d", act->button);
        TryCopyStr(buf, tbuf, sz);
    }
    else
        TryCopyStr(buf, "default", sz);
    if (act->count > 0) {
        snprintf(tbuf, sizeof(tbuf), ",count=%d", act->count);
        TryCopyStr(buf, tbuf, sz);
    }
    if (action->type == XkbSA_LockPtrBtn) {
        switch (act->flags & (XkbSA_LockNoUnlock | XkbSA_LockNoLock)) {
        case XkbSA_LockNoLock:
            TryCopyStr(buf, ",affect=unlock", sz);
            break;
        case XkbSA_LockNoUnlock:
            TryCopyStr(buf, ",affect=lock", sz);
            break;
        case XkbSA_LockNoUnlock | XkbSA_LockNoLock:
            TryCopyStr(buf, ",affect=neither", sz);
            break;
        default:
            TryCopyStr(buf, ",affect=both", sz);
            break;
        }
    }
    return TRUE;
}

 /*ARGSUSED*/ static Bool
CopySetPtrDfltArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbPtrDfltAction *act;
    char tbuf[32];

    act = &action->dflt;
    if (act->affect == XkbSA_AffectDfltBtn) {
        TryCopyStr(buf, "affect=button,button=", sz);
        if ((act->flags & XkbSA_DfltBtnAbsolute) ||
            (XkbSAPtrDfltValue(act) < 0))
            snprintf(tbuf, sizeof(tbuf), "%d", XkbSAPtrDfltValue(act));
        else
            snprintf(tbuf, sizeof(tbuf), "+%d", XkbSAPtrDfltValue(act));
        TryCopyStr(buf, tbuf, sz);
    }
    return TRUE;
}

static Bool
CopyISOLockArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbISOAction *act;
    char tbuf[64];

    memset(tbuf, 0, sizeof(tbuf));
    act = &action->iso;
    if (act->flags & XkbSA_ISODfltIsGroup) {
        TryCopyStr(tbuf, "group=", sz);
        if (act->flags & XkbSA_GroupAbsolute)
            snprintf(tbuf, sizeof(tbuf), "%d", XkbSAGroup(act) + 1);
        else if (XkbSAGroup(act) < 0)
            snprintf(tbuf, sizeof(tbuf), "%d", XkbSAGroup(act));
        else
            snprintf(tbuf, sizeof(tbuf), "+%d", XkbSAGroup(act));
        TryCopyStr(buf, tbuf, sz);
    }
    else {
        unsigned tmp;

        tmp = XkbModActionVMods(act);
        TryCopyStr(buf, "modifiers=", sz);
        if (act->flags & XkbSA_UseModMapMods)
            TryCopyStr(buf, "modMapMods", sz);
        else if (act->real_mods || tmp) {
            if (act->real_mods) {
                TryCopyStr(buf, XkbModMaskText(act->real_mods, XkbXKBFile), sz);
                if (tmp)
                    TryCopyStr(buf, "+", sz);
            }
            if (tmp)
                TryCopyStr(buf, XkbVModMaskText(xkb, 0, tmp, XkbXKBFile), sz);
        }
        else
            TryCopyStr(buf, "none", sz);
    }
    TryCopyStr(buf, ",affect=", sz);
    if ((act->affect & XkbSA_ISOAffectMask) == 0)
        TryCopyStr(buf, "all", sz);
    else {
        int nOut = 0;

        if ((act->affect & XkbSA_ISONoAffectMods) == 0) {
            TryCopyStr(buf, "mods", sz);
            nOut++;
        }
        if ((act->affect & XkbSA_ISONoAffectGroup) == 0) {
            snprintf(tbuf, sizeof(tbuf), "%sgroups", (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if ((act->affect & XkbSA_ISONoAffectPtr) == 0) {
            snprintf(tbuf, sizeof(tbuf), "%spointer", (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if ((act->affect & XkbSA_ISONoAffectCtrls) == 0) {
            snprintf(tbuf, sizeof(tbuf), "%scontrols", (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
    }
    return TRUE;
}

 /*ARGSUSED*/ static Bool
CopySwitchScreenArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbSwitchScreenAction *act;
    char tbuf[32];

    act = &action->screen;
    if ((act->flags & XkbSA_SwitchAbsolute) || (XkbSAScreen(act) < 0))
        snprintf(tbuf, sizeof(tbuf), "screen=%d", XkbSAScreen(act));
    else
        snprintf(tbuf, sizeof(tbuf), "screen=+%d", XkbSAScreen(act));
    TryCopyStr(buf, tbuf, sz);
    if (act->flags & XkbSA_SwitchApplication)
        TryCopyStr(buf, ",!same", sz);
    else
        TryCopyStr(buf, ",same", sz);
    return TRUE;
}

 /*ARGSUSED*/ static Bool
CopySetLockControlsArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbCtrlsAction *act;
    unsigned tmp;
    char tbuf[32];

    act = &action->ctrls;
    tmp = XkbActionCtrls(act);
    TryCopyStr(buf, "controls=", sz);
    if (tmp == 0)
        TryCopyStr(buf, "none", sz);
    else if ((tmp & XkbAllBooleanCtrlsMask) == XkbAllBooleanCtrlsMask)
        TryCopyStr(buf, "all", sz);
    else {
        int nOut = 0;

        if (tmp & XkbRepeatKeysMask) {
            snprintf(tbuf, sizeof(tbuf), "%sRepeatKeys", (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbSlowKeysMask) {
            snprintf(tbuf, sizeof(tbuf), "%sSlowKeys", (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbBounceKeysMask) {
            snprintf(tbuf, sizeof(tbuf), "%sBounceKeys", (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbStickyKeysMask) {
            snprintf(tbuf, sizeof(tbuf), "%sStickyKeys", (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbMouseKeysMask) {
            snprintf(tbuf, sizeof(tbuf), "%sMouseKeys", (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbMouseKeysAccelMask) {
            snprintf(tbuf, sizeof(tbuf), "%sMouseKeysAccel",
                     (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbAccessXKeysMask) {
            snprintf(tbuf, sizeof(tbuf), "%sAccessXKeys",
                     (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbAccessXTimeoutMask) {
            snprintf(tbuf, sizeof(tbuf), "%sAccessXTimeout",
                     (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbAccessXFeedbackMask) {
            snprintf(tbuf, sizeof(tbuf), "%sAccessXFeedback",
                     (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbAudibleBellMask) {
            snprintf(tbuf, sizeof(tbuf), "%sAudibleBell",
                     (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbOverlay1Mask) {
            snprintf(tbuf, sizeof(tbuf), "%sOverlay1", (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbOverlay2Mask) {
            snprintf(tbuf, sizeof(tbuf), "%sOverlay2", (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
        if (tmp & XkbIgnoreGroupLockMask) {
            snprintf(tbuf, sizeof(tbuf), "%sIgnoreGroupLock",
                     (nOut > 0 ? "+" : ""));
            TryCopyStr(buf, tbuf, sz);
            nOut++;
        }
    }
    return TRUE;
}

 /*ARGSUSED*/ static Bool
CopyActionMessageArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbMessageAction *act;
    unsigned all;
    char tbuf[32];

    act = &action->msg;
    all = XkbSA_MessageOnPress | XkbSA_MessageOnRelease;
    TryCopyStr(buf, "report=", sz);
    if ((act->flags & all) == 0)
        TryCopyStr(buf, "none", sz);
    else if ((act->flags & all) == all)
        TryCopyStr(buf, "all", sz);
    else if (act->flags & XkbSA_MessageOnPress)
        TryCopyStr(buf, "KeyPress", sz);
    else
        TryCopyStr(buf, "KeyRelease", sz);
    snprintf(tbuf, sizeof(tbuf), ",data[0]=0x%02x", act->message[0]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[1]=0x%02x", act->message[1]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[2]=0x%02x", act->message[2]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[3]=0x%02x", act->message[3]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[4]=0x%02x", act->message[4]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[5]=0x%02x", act->message[5]);
    TryCopyStr(buf, tbuf, sz);
    return TRUE;
}

static Bool
CopyRedirectKeyArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbRedirectKeyAction *act;
    char tbuf[32], *tmp;
    unsigned kc;
    unsigned vmods, vmods_mask;

    act = &action->redirect;
    kc = act->new_key;
    vmods = XkbSARedirectVMods(act);
    vmods_mask = XkbSARedirectVModsMask(act);
    if (xkb && xkb->names && xkb->names->keys && (kc <= xkb->max_key_code) &&
        (xkb->names->keys[kc].name[0] != '\0')) {
        char *kn;

        kn = XkbKeyNameText(xkb->names->keys[kc].name, XkbXKBFile);
        snprintf(tbuf, sizeof(tbuf), "key=%s", kn);
    }
    else
        snprintf(tbuf, sizeof(tbuf), "key=%d", kc);
    TryCopyStr(buf, tbuf, sz);
    if ((act->mods_mask == 0) && (vmods_mask == 0))
        return TRUE;
    if ((act->mods_mask == XkbAllModifiersMask) &&
        (vmods_mask == XkbAllVirtualModsMask)) {
        tmp = XkbVModMaskText(xkb, act->mods, vmods, XkbXKBFile);
        TryCopyStr(buf, ",mods=", sz);
        TryCopyStr(buf, tmp, sz);
    }
    else {
        if ((act->mods_mask & act->mods) || (vmods_mask & vmods)) {
            tmp = XkbVModMaskText(xkb, act->mods_mask & act->mods,
                                  vmods_mask & vmods, XkbXKBFile);
            TryCopyStr(buf, ",mods= ", sz);
            TryCopyStr(buf, tmp, sz);
        }
        if ((act->mods_mask & (~act->mods)) || (vmods_mask & (~vmods))) {
            tmp = XkbVModMaskText(xkb, act->mods_mask & (~act->mods),
                                  vmods_mask & (~vmods), XkbXKBFile);
            TryCopyStr(buf, ",clearMods= ", sz);
            TryCopyStr(buf, tmp, sz);
        }
    }
    return TRUE;
}

 /*ARGSUSED*/ static Bool
CopyDeviceBtnArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbDeviceBtnAction *act;
    char tbuf[32];

    act = &action->devbtn;
    snprintf(tbuf, sizeof(tbuf), "device= %d", act->device);
    TryCopyStr(buf, tbuf, sz);
    TryCopyStr(buf, ",button=", sz);
    snprintf(tbuf, sizeof(tbuf), "%d", act->button);
    TryCopyStr(buf, tbuf, sz);
    if (act->count > 0) {
        snprintf(tbuf, sizeof(tbuf), ",count=%d", act->count);
        TryCopyStr(buf, tbuf, sz);
    }
    if (action->type == XkbSA_LockDeviceBtn) {
        switch (act->flags & (XkbSA_LockNoUnlock | XkbSA_LockNoLock)) {
        case XkbSA_LockNoLock:
            TryCopyStr(buf, ",affect=unlock", sz);
            break;
        case XkbSA_LockNoUnlock:
            TryCopyStr(buf, ",affect=lock", sz);
            break;
        case XkbSA_LockNoUnlock | XkbSA_LockNoLock:
            TryCopyStr(buf, ",affect=neither", sz);
            break;
        default:
            TryCopyStr(buf, ",affect=both", sz);
            break;
        }
    }
    return TRUE;
}

 /*ARGSUSED*/ static Bool
CopyOtherArgs(XkbDescPtr xkb, XkbAction *action, char *buf, int *sz)
{
    XkbAnyAction *act;
    char tbuf[32];

    act = &action->any;
    snprintf(tbuf, sizeof(tbuf), "type=0x%02x", act->type);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[0]=0x%02x", act->data[0]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[1]=0x%02x", act->data[1]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[2]=0x%02x", act->data[2]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[3]=0x%02x", act->data[3]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[4]=0x%02x", act->data[4]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[5]=0x%02x", act->data[5]);
    TryCopyStr(buf, tbuf, sz);
    snprintf(tbuf, sizeof(tbuf), ",data[6]=0x%02x", act->data[6]);
    TryCopyStr(buf, tbuf, sz);
    return TRUE;
}

typedef Bool (*actionCopy) (XkbDescPtr /* xkb */ ,
                            XkbAction * /* action */ ,
                            char * /* buf */ ,
                            int *       /* sz */
    );

static actionCopy copyActionArgs[XkbSA_NumActions] = {
    CopyNoActionArgs /* NoAction     */ ,
    CopyModActionArgs /* SetMods      */ ,
    CopyModActionArgs /* LatchMods    */ ,
    CopyModActionArgs /* LockMods     */ ,
    CopyGroupActionArgs /* SetGroup     */ ,
    CopyGroupActionArgs /* LatchGroup   */ ,
    CopyGroupActionArgs /* LockGroup    */ ,
    CopyMovePtrArgs /* MovePtr      */ ,
    CopyPtrBtnArgs /* PtrBtn       */ ,
    CopyPtrBtnArgs /* LockPtrBtn   */ ,
    CopySetPtrDfltArgs /* SetPtrDflt   */ ,
    CopyISOLockArgs /* ISOLock      */ ,
    CopyNoActionArgs /* Terminate    */ ,
    CopySwitchScreenArgs /* SwitchScreen */ ,
    CopySetLockControlsArgs /* SetControls  */ ,
    CopySetLockControlsArgs /* LockControls */ ,
    CopyActionMessageArgs /* ActionMessage */ ,
    CopyRedirectKeyArgs /* RedirectKey  */ ,
    CopyDeviceBtnArgs /* DeviceBtn    */ ,
    CopyDeviceBtnArgs           /* LockDeviceBtn */
};

#define	ACTION_SZ	256

char *
XkbActionText(XkbDescPtr xkb, XkbAction *action, unsigned format)
{
    char buf[ACTION_SZ];
    int sz;

    if (format == XkbCFile) {
        snprintf(buf, sizeof(buf),
                 "{ %20s, { 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x } }",
                 XkbActionTypeText(action->type, XkbCFile),
                 action->any.data[0], action->any.data[1], action->any.data[2],
                 action->any.data[3], action->any.data[4], action->any.data[5],
                 action->any.data[6]);
    }
    else {
        snprintf(buf, sizeof(buf), "%s(",
                 XkbActionTypeText(action->type, XkbXKBFile));
        sz = ACTION_SZ - strlen(buf) + 2;       /* room for close paren and NULL */
        if (action->type < (unsigned) XkbSA_NumActions)
            (*copyActionArgs[action->type]) (xkb, action, buf, &sz);
        else
            CopyOtherArgs(xkb, action, buf, &sz);
        TryCopyStr(buf, ")", &sz);
    }
    return tbGetBufferString(buf);
}

char *
XkbBehaviorText(XkbDescPtr xkb, XkbBehavior * behavior, unsigned format)
{
    char buf[256];

    if (format == XkbCFile) {
        if (behavior->type == XkbKB_Default)
            snprintf(buf, sizeof(buf), "{   0,    0 }");
        else
            snprintf(buf, sizeof(buf), "{ %3d, 0x%02x }", behavior->type,
                     behavior->data);
    }
    else {
        unsigned type, permanent;

        type = behavior->type & XkbKB_OpMask;
        permanent = ((behavior->type & XkbKB_Permanent) != 0);

        if (type == XkbKB_Lock) {
            snprintf(buf, sizeof(buf), "lock= %s",
                     (permanent ? "Permanent" : "TRUE"));
        }
        else if (type == XkbKB_RadioGroup) {
            int g;
            char *tmp;
            size_t tmpsize;

            g = ((behavior->data) & (~XkbKB_RGAllowNone)) + 1;
            if (XkbKB_RGAllowNone & behavior->data) {
                snprintf(buf, sizeof(buf), "allowNone,");
                tmp = &buf[strlen(buf)];
            }
            else
                tmp = buf;
            tmpsize = sizeof(buf) - (tmp - buf);
            if (permanent)
                snprintf(tmp, tmpsize, "permanentRadioGroup= %d", g);
            else
                snprintf(tmp, tmpsize, "radioGroup= %d", g);
        }
        else if ((type == XkbKB_Overlay1) || (type == XkbKB_Overlay2)) {
            int ndx, kc;
            char *kn;

            ndx = ((type == XkbKB_Overlay1) ? 1 : 2);
            kc = behavior->data;
            if ((xkb) && (xkb->names) && (xkb->names->keys))
                kn = XkbKeyNameText(xkb->names->keys[kc].name, XkbXKBFile);
            else {
                static char tbuf[8];

                snprintf(tbuf, sizeof(tbuf), "%d", kc);
                kn = tbuf;
            }
            if (permanent)
                snprintf(buf, sizeof(buf), "permanentOverlay%d= %s", ndx, kn);
            else
                snprintf(buf, sizeof(buf), "overlay%d= %s", ndx, kn);
        }
    }
    return tbGetBufferString(buf);
}

/***====================================================================***/

char *
XkbIndentText(unsigned size)
{
    static char buf[32];
    register int i;

    if (size > 31)
        size = 31;

    for (i = 0; i < size; i++) {
        buf[i] = ' ';
    }
    buf[size] = '\0';
    return buf;
}
