/*
    SuperCollider real time audio synthesis system
    Copyright (c) 2002 James McCartney. All rights reserved.
    http://www.audiosynth.com

    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 2 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
*/

/*

Primitives for Char.

*/

#include <ctype.h>
#include "PyrPrimitive.h"
#include "VMGlobals.h"

int prToLower(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;

    SetRawChar(a, tolower(slotRawChar(a)));

    return errNone;
}

int prToUpper(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;

    SetRawChar(a, toupper(slotRawChar(a)));

    return errNone;
}

int prIsLower(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a = g->sp;

    if (islower(slotRawChar(a))) {
        SetTrue(a);
    } else {
        SetFalse(a);
    }

    return errNone;
}

int prIsUpper(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a = g->sp;

    if (isupper(slotRawChar(a))) {
        SetTrue(a);
    } else {
        SetFalse(a);
    }

    return errNone;
}

int prIsAlpha(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;

    if (isalpha(slotRawChar(a))) {
        SetTrue(a);
    } else {
        SetFalse(a);
    }

    return errNone;
}

int prIsAlphaNum(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;

    if (isalnum(slotRawChar(a))) {
        SetTrue(a);
    } else {
        SetFalse(a);
    }

    return errNone;
}

int prIsControl(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;

    if (iscntrl(slotRawChar(a))) {
        SetTrue(a);
    } else {
        SetFalse(a);
    }

    return errNone;
}

int prIsDigit(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;

    if (isdigit(slotRawChar(a))) {
        SetTrue(a);
    } else {
        SetFalse(a);
    }

    return errNone;
}

int prIsPrint(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;

    if (isprint(slotRawChar(a))) {
        SetTrue(a);
    } else {
        SetFalse(a);
    }

    return errNone;
}

int prIsPunct(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;

    if (ispunct(slotRawChar(a))) {
        SetTrue(a);
    } else {
        SetFalse(a);
    }

    return errNone;
}

int prIsSpace(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;

    if (isspace(slotRawChar(a))) {
        SetTrue(a);
    } else {
        SetFalse(a);
    }

    return errNone;
}

int prAsciiValue(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;

    SetTagRaw(a, tagInt);

    return errNone;
}

int prDigitValue(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;
    char c;

    a = g->sp;

    c = slotRawChar(a);
    if (c >= '0' && c <= '9') {
        SetInt(a, c - '0');
    } else if (c >= 'a' && c <= 'z') {
        SetInt(a, c - 'a' + 10);
    } else if (c >= 'A' && c <= 'Z') {
        SetInt(a, c - 'A' + 10);
    } else {
        return errFailed;
    }

    return errNone;
}


int prAsAscii(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;

    a = g->sp;
    SetChar(a, slotRawInt(a) & 255);

    return errNone;
}

int prAsDigit(struct VMGlobals* g, int numArgsPushed) {
    PyrSlot* a;
    int c;

    a = g->sp;

    c = slotRawInt(a);
    if (c >= 0 && c <= 9) {
        SetChar(a, slotRawInt(a) + '0');
    } else if (c >= 10 && c <= 35) {
        SetChar(a, slotRawInt(a) + 'A' - 10);
    } else {
        return errFailed;
    }

    return errNone;
}

void initCharPrimitives() {
    int base, index = 0;

    base = nextPrimitiveIndex();

    definePrimitive(base, index++, "_AsciiValue", prAsciiValue, 1, 0);
    definePrimitive(base, index++, "_DigitValue", prDigitValue, 1, 0);
    definePrimitive(base, index++, "_AsAscii", prAsAscii, 1, 0);
    definePrimitive(base, index++, "_AsDigit", prAsDigit, 1, 0);
    definePrimitive(base, index++, "_ToLower", prToLower, 1, 0);
    definePrimitive(base, index++, "_ToUpper", prToUpper, 1, 0);
    definePrimitive(base, index++, "_IsLower", prIsLower, 1, 0);
    definePrimitive(base, index++, "_IsUpper", prIsUpper, 1, 0);
    definePrimitive(base, index++, "_IsAlpha", prIsAlpha, 1, 0);
    definePrimitive(base, index++, "_IsAlphaNum", prIsAlphaNum, 1, 0);
    definePrimitive(base, index++, "_IsPrint", prIsPrint, 1, 0);
    definePrimitive(base, index++, "_IsPunct", prIsPunct, 1, 0);
    definePrimitive(base, index++, "_IsControl", prIsControl, 1, 0);
    definePrimitive(base, index++, "_IsSpace", prIsSpace, 1, 0);
    definePrimitive(base, index++, "_IsDecDigit", prIsDigit, 1, 0);
}
