head	1.2;
access;
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	micropython-1-5-2-base:1.1.1.1 MICROPYTHON:1.1.1;
locks; strict;
comment	@ * @;


1.2
date	2026.10.15.05.28.44;	author agc;	state dead;
branches;
next	1.1;
commitid	aHLdC1EGCUYk7xZG;

1.1
date	2016.01.14.01.38.50;	author agc;	state Exp;
branches
	1.1.1.1;
next	;
commitid	Q8liT0v6zMF95QQy;

1.1.1.1
date	2016.01.14.01.38.50;	author agc;	state Exp;
branches;
next	;
commitid	Q8liT0v6zMF95QQy;


desc
@@


1.2
log
@Remove waaaay old micropython sources which haven't been relevant for 10 years
@
text
@/*
 * This file is part of the Micro Python project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2013, 2014 Damien P. George
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <assert.h>

#include "py/mpconfig.h"
#include "py/misc.h"
#include "py/mpprint.h"

// returned value is always at least 1 greater than argument
#define ROUND_ALLOC(a) (((a) & ((~0) - 7)) + 8)

// Init the vstr so it allocs exactly given number of bytes.  Set length to zero.
void vstr_init(vstr_t *vstr, size_t alloc) {
    if (alloc < 1) {
        alloc = 1;
    }
    vstr->alloc = alloc;
    vstr->len = 0;
    vstr->buf = m_new(char, vstr->alloc);
    if (vstr->buf == NULL) {
        vstr->had_error = true;
        return;
    }
    vstr->had_error = false;
    vstr->fixed_buf = false;
}

// Init the vstr so it allocs exactly enough ram to hold a null-terminated
// string of the given length, and set the length.
void vstr_init_len(vstr_t *vstr, size_t len) {
    vstr_init(vstr, len + 1);
    vstr->len = len;
}

void vstr_init_fixed_buf(vstr_t *vstr, size_t alloc, char *buf) {
    vstr->alloc = alloc;
    vstr->len = 0;
    vstr->buf = buf;
    vstr->had_error = false;
    vstr->fixed_buf = true;
}

void vstr_init_print(vstr_t *vstr, size_t alloc, mp_print_t *print) {
    vstr_init(vstr, alloc);
    print->data = vstr;
    print->print_strn = (mp_print_strn_t)vstr_add_strn;
}

void vstr_clear(vstr_t *vstr) {
    if (!vstr->fixed_buf) {
        m_del(char, vstr->buf, vstr->alloc);
    }
    vstr->buf = NULL;
}

vstr_t *vstr_new(void) {
    vstr_t *vstr = m_new_obj(vstr_t);
    if (vstr == NULL) {
        return NULL;
    }
    vstr_init(vstr, 16);
    return vstr;
}

vstr_t *vstr_new_size(size_t alloc) {
    vstr_t *vstr = m_new_obj(vstr_t);
    if (vstr == NULL) {
        return NULL;
    }
    vstr_init(vstr, alloc);
    return vstr;
}

void vstr_free(vstr_t *vstr) {
    if (vstr != NULL) {
        if (!vstr->fixed_buf) {
            m_del(char, vstr->buf, vstr->alloc);
        }
        m_del_obj(vstr_t, vstr);
    }
}

void vstr_reset(vstr_t *vstr) {
    vstr->len = 0;
    vstr->had_error = false;
}

bool vstr_had_error(vstr_t *vstr) {
    return vstr->had_error;
}

char *vstr_str(vstr_t *vstr) {
    if (vstr->had_error) {
        return NULL;
    }
    return vstr->buf;
}

size_t vstr_len(vstr_t *vstr) {
    if (vstr->had_error) {
        return 0;
    }
    return vstr->len;
}

// Extend vstr strictly by requested size, return pointer to newly added chunk.
char *vstr_extend(vstr_t *vstr, size_t size) {
    if (vstr->fixed_buf) {
        return NULL;
    }
    char *new_buf = m_renew(char, vstr->buf, vstr->alloc, vstr->alloc + size);
    if (new_buf == NULL) {
        vstr->had_error = true;
        return NULL;
    }
    char *p = new_buf + vstr->alloc;
    vstr->alloc += size;
    vstr->buf = new_buf;
    return p;
}

STATIC bool vstr_ensure_extra(vstr_t *vstr, size_t size) {
    if (vstr->len + size > vstr->alloc) {
        if (vstr->fixed_buf) {
            return false;
        }
        size_t new_alloc = ROUND_ALLOC((vstr->len + size) * 2);
        char *new_buf = m_renew(char, vstr->buf, vstr->alloc, new_alloc);
        if (new_buf == NULL) {
            vstr->had_error = true;
            return false;
        }
        vstr->alloc = new_alloc;
        vstr->buf = new_buf;
    }
    return true;
}

void vstr_hint_size(vstr_t *vstr, size_t size) {
    // it's not an error if we fail to allocate for the size hint
    bool er = vstr->had_error;
    vstr_ensure_extra(vstr, size);
    vstr->had_error = er;
}

char *vstr_add_len(vstr_t *vstr, size_t len) {
    if (vstr->had_error || !vstr_ensure_extra(vstr, len)) {
        return NULL;
    }
    char *buf = vstr->buf + vstr->len;
    vstr->len += len;
    return buf;
}

// Doesn't increase len, just makes sure there is a null byte at the end
char *vstr_null_terminated_str(vstr_t *vstr) {
    if (vstr->had_error || !vstr_ensure_extra(vstr, 1)) {
        return NULL;
    }
    vstr->buf[vstr->len] = '\0';
    return vstr->buf;
}

void vstr_add_byte(vstr_t *vstr, byte b) {
    byte *buf = (byte*)vstr_add_len(vstr, 1);
    if (buf == NULL) {
        return;
    }
    buf[0] = b;
}

void vstr_add_char(vstr_t *vstr, unichar c) {
#if MICROPY_PY_BUILTINS_STR_UNICODE
    // TODO: Can this be simplified and deduplicated?
    // Is it worth just calling vstr_add_len(vstr, 4)?
    if (c < 0x80) {
        byte *buf = (byte*)vstr_add_len(vstr, 1);
        if (buf == NULL) {
            return;
        }
        *buf = (byte)c;
    } else if (c < 0x800) {
        byte *buf = (byte*)vstr_add_len(vstr, 2);
        if (buf == NULL) {
            return;
        }
        buf[0] = (c >> 6) | 0xC0;
        buf[1] = (c & 0x3F) | 0x80;
    } else if (c < 0x10000) {
        byte *buf = (byte*)vstr_add_len(vstr, 3);
        if (buf == NULL) {
            return;
        }
        buf[0] = (c >> 12) | 0xE0;
        buf[1] = ((c >> 6) & 0x3F) | 0x80;
        buf[2] = (c & 0x3F) | 0x80;
    } else {
        assert(c < 0x110000);
        byte *buf = (byte*)vstr_add_len(vstr, 4);
        if (buf == NULL) {
            return;
        }
        buf[0] = (c >> 18) | 0xF0;
        buf[1] = ((c >> 12) & 0x3F) | 0x80;
        buf[2] = ((c >> 6) & 0x3F) | 0x80;
        buf[3] = (c & 0x3F) | 0x80;
    }
#else
    vstr_add_byte(vstr, c);
#endif
}

void vstr_add_str(vstr_t *vstr, const char *str) {
    vstr_add_strn(vstr, str, strlen(str));
}

void vstr_add_strn(vstr_t *vstr, const char *str, size_t len) {
    if (vstr->had_error || !vstr_ensure_extra(vstr, len)) {
        // if buf is fixed, we got here because there isn't enough room left
        // so just try to copy as much as we can, with room for a possible null byte
        if (vstr->fixed_buf && vstr->len < vstr->alloc) {
            len = vstr->alloc - vstr->len;
            goto copy;
        }
        return;
    }
copy:
    memmove(vstr->buf + vstr->len, str, len);
    vstr->len += len;
}

STATIC char *vstr_ins_blank_bytes(vstr_t *vstr, size_t byte_pos, size_t byte_len) {
    if (vstr->had_error) {
        return NULL;
    }
    size_t l = vstr->len;
    if (byte_pos > l) {
        byte_pos = l;
    }
    if (byte_len > 0) {
        // ensure room for the new bytes
        if (!vstr_ensure_extra(vstr, byte_len)) {
            return NULL;
        }
        // copy up the string to make room for the new bytes
        memmove(vstr->buf + byte_pos + byte_len, vstr->buf + byte_pos, l - byte_pos);
        // increase the length
        vstr->len += byte_len;
    }
    return vstr->buf + byte_pos;
}

void vstr_ins_byte(vstr_t *vstr, size_t byte_pos, byte b) {
    char *s = vstr_ins_blank_bytes(vstr, byte_pos, 1);
    if (s != NULL) {
        *s = b;
    }
}

void vstr_ins_char(vstr_t *vstr, size_t char_pos, unichar chr) {
    // TODO UNICODE
    char *s = vstr_ins_blank_bytes(vstr, char_pos, 1);
    if (s != NULL) {
        *s = chr;
    }
}

void vstr_cut_head_bytes(vstr_t *vstr, size_t bytes_to_cut) {
    vstr_cut_out_bytes(vstr, 0, bytes_to_cut);
}

void vstr_cut_tail_bytes(vstr_t *vstr, size_t len) {
    if (vstr->had_error) {
        return;
    }
    if (len > vstr->len) {
        vstr->len = 0;
    } else {
        vstr->len -= len;
    }
}

void vstr_cut_out_bytes(vstr_t *vstr, size_t byte_pos, size_t bytes_to_cut) {
    if (vstr->had_error || byte_pos >= vstr->len) {
        return;
    } else if (byte_pos + bytes_to_cut >= vstr->len) {
        vstr->len = byte_pos;
    } else {
        memmove(vstr->buf + byte_pos, vstr->buf + byte_pos + bytes_to_cut, vstr->len - byte_pos - bytes_to_cut);
        vstr->len -= bytes_to_cut;
    }
}

void vstr_printf(vstr_t *vstr, const char *fmt, ...) {
    va_list ap;
    va_start(ap, fmt);
    vstr_vprintf(vstr, fmt, ap);
    va_end(ap);
}

void vstr_vprintf(vstr_t *vstr, const char *fmt, va_list ap) {
    mp_print_t print = {vstr, (mp_print_strn_t)vstr_add_strn};
    mp_vprintf(&print, fmt, ap);
}
@


1.1
log
@Initial revision
@
text
@@


1.1.1.1
log
@Import micropython version 1.5.2 into othersrc.

Micropython is a python3 implementation that has been optimised for
micro-controllers and small embedded systems.  It also has a "unix"
port. It has an MIT license.

This is version 1.5.2 of micropython.

	MicroPython implements the entire Python 3.4 syntax (including
	exceptions, "with", "yield from", etc.).  The following core
	datatypes are provided:  str (including basic Unicode
	support), bytes, bytearray, tuple, list, dict, set, frozenset,
	array.array, collections.namedtuple, classes and instances. 
	Builtin modules include sys, time, and struct.  Note that only
	subset of Python 3.4 functionality implemented for the data
	types and modules.

This is the standard micropython source (version v1.5.2), which has been
adapted to use reachover infrastructure. At the present time, libffi
(from pkgsrc) is used. Alternative locations for libffi can be set
using the PKGSRC_PREFIX definition to make.

In the whole scheme of things, micropython is quite small:

	% size bin/micropython
	   text    data     bss     dec     hex filename
	 393495    1624    2208  397327   6100f bin/micropython
	%

and runs much as expected:

	% bin/micropython
	MicroPython v1.5.2 on 2016-01-13; linux version
	Use Ctrl-D to exit, Ctrl-E for paste mode
	>>> print("hello world")
	hello world
	>>> list(5 * x + y for x in range(10) for y in [4, 2, 1])
	[4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46]
	>>>
	% python2.7
	Python 2.7.10 (default, Oct 17 2015, 17:55:29)
	[GCC 4.8.5] on netbsd7
	Type "help", "copyright", "credits" or "license" for more information.
	>>> print("hello world")
	hello world
	>>> list(5 * x + y for x in range(10) for y in [4, 2, 1])
	[4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46]
	>>> ^D
	%

This (reachover) version runs all the tests which the gmake version does.

	% make t
	cd bin && make t
	cd /home/agc/local/micropython/bin/../dist/unix/../tests && env MICROPY_MICROPYTHON=/home/agc/local/micropython/bin/micropython ./run-tests
	pass  basics/0prelim.py
	pass  basics/andor.py
	pass  basics/array1.py
	pass  basics/array_add.py
	pass  basics/array_construct.py
	pass  basics/array_construct2.py
	...
	pass  unix/ffi_callback.py
	pass  unix/ffi_float.py
	pass  unix/ffi_float2.py
	474 tests performed (15812 individual testcases)
	474 tests passed
	5 tests skipped: cmd_showbc cmd_verbose machine1 machine_mem extra_coverage
	%

The sources are available from github:
	https://github.com/micropython/micropython

micropython release at:
	https://github.com/micropython/micropython/releases

Sources for 1.5.2 taken from:
	https://github.com/micropython/micropython/archive/v1.5.2.tar.gz

Alistair Crooks
agc@@netbsd.org
Wed Jan 13 17:15:30 PST 2016
@
text
@@