windows: Use most of the source files from unix/ port.

To keep it maintainable, windows port now uses as much as possible from
unix port.  Maybe could even use mpconfigport.h.

windows/Makefile

@@ -4,7 +4,7 @@ include ../py/mkenv.mk
 PROG = micropython.exe
 
 # qstr definitions (must come before including py.mk)
-QSTR_DEFS = qstrdefsport.h
+QSTR_DEFS = ../unix/qstrdefsport.h
 
 # include py core make definitions
 include ../py/py.mk
@@ -22,8 +22,8 @@ endif
 
 # source files
 SRC_C = \
-	main.c \
-	file.c \
+	unix/main.c \
+	unix/file.c \
 
 OBJ = $(PY_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
 LIB = -lreadline

windows/file.c

-#include <stdio.h>
-#include "../unix/file.c"
\ No newline at end of file

windows/main.c

-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "nlr.h"
-#include "misc.h"
-#include "mpconfig.h"
-#include "qstr.h"
-#include "lexer.h"
-#include "lexerunix.h"
-#include "parse.h"
-#include "obj.h"
-#include "parsehelper.h"
-#include "compile.h"
-#include "runtime0.h"
-#include "runtime.h"
-#include "repl.h"
-#include "build/py/py-version.h"
-
-#if MICROPY_USE_READLINE
-#include <readline/readline.h>
-#include <readline/history.h>
-#endif
-
-extern const mp_obj_fun_native_t mp_builtin_open_obj;
-void file_init();
-
-static void execute_from_lexer(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, bool is_repl) {
-    if (lex == NULL) {
-        return;
-    }
-
-    if (0) {
-        // just tokenise
-        while (!mp_lexer_is_kind(lex, MP_TOKEN_END)) {
-            mp_token_show(mp_lexer_cur(lex));
-            mp_lexer_to_next(lex);
-        }
-        mp_lexer_free(lex);
-        return;
-    }
-
-    mp_parse_error_kind_t parse_error_kind;
-    mp_parse_node_t pn = mp_parse(lex, input_kind, &parse_error_kind);
-
-    if (pn == MP_PARSE_NODE_NULL) {
-        // parse error
-        mp_parse_show_exception(lex, parse_error_kind);
-        mp_lexer_free(lex);
-        return;
-    }
-
-    qstr source_name = mp_lexer_source_name(lex);
-    mp_lexer_free(lex);
-
-    /*
-    printf("----------------\n");
-    mp_parse_node_print(pn, 0);
-    printf("----------------\n");
-    */
-
-    mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, is_repl);
-
-    if (module_fun == mp_const_none) {
-        // compile error
-        return;
-    }
-
-    // execute it
-    nlr_buf_t nlr;
-    if (nlr_push(&nlr) == 0) {
-        mp_call_function_0(module_fun);
-        nlr_pop();
-    } else {
-        // uncaught exception
-        mp_obj_print_exception((mp_obj_t)nlr.ret_val);
-    }
-}
-
-static char *str_join(const char *s1, int sep_char, const char *s2) {
-    int l1 = strlen(s1);
-    int l2 = strlen(s2);
-    char *s = m_new(char, l1 + l2 + 2);
-    memcpy(s, s1, l1);
-    if (sep_char != 0) {
-        s[l1] = sep_char;
-        l1 += 1;
-    }
-    memcpy(s + l1, s2, l2);
-    s[l1 + l2] = 0;
-    return s;
-}
-
-static char *prompt(char *p) {
-#if MICROPY_USE_READLINE
-    char *line = readline(p);
-    if (line) {
-        add_history(line);
-    }
-#else
-    static char buf[256];
-    fputs(p, stdout);
-    char *s = fgets(buf, sizeof(buf), stdin);
-    if (!s) {
-        return NULL;
-    }
-    int l = strlen(buf);
-    if (buf[l - 1] == '\n') {
-        buf[l - 1] = 0;
-    } else {
-        l++;
-    }
-    char *line = malloc(l);
-    memcpy(line, buf, l);
-#endif
-    return line;
-}
-
-static void do_repl(void) {
-    printf("Micro Python build " MICROPY_GIT_HASH " on " MICROPY_BUILD_DATE "; Windows version\n");
-
-    for (;;) {
-        char *line = prompt(">>> ");
-        if (line == NULL) {
-            // EOF
-            return;
-        }
-        while (mp_repl_continue_with_input(line)) {
-            char *line2 = prompt("... ");
-            if (line2 == NULL) {
-                break;
-            }
-            char *line3 = str_join(line, '\n', line2);
-            free(line);
-            free(line2);
-            line = line3;
-        }
-
-        mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line, strlen(line), false);
-        execute_from_lexer(lex, MP_PARSE_SINGLE_INPUT, true);
-        free(line);
-    }
-}
-
-static void do_file(const char *file) {
-    // hack: set dir for import based on where this file is
-    {
-        const char * s = strrchr(file, '\\');
-        if (s != NULL) {
-            int len = s - file;
-            char *dir = m_new(char, len + 1);
-            memcpy(dir, file, len);
-            dir[len] = '\0';
-            mp_import_set_directory(dir);
-        }
-    }
-
-    mp_lexer_t *lex = mp_lexer_new_from_file(file);
-    execute_from_lexer(lex, MP_PARSE_FILE_INPUT, false);
-}
-
-static void do_str(const char *str) {
-    mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, str, strlen(str), false);
-    execute_from_lexer(lex, MP_PARSE_SINGLE_INPUT, false);
-}
-
-int usage(void) {
-    printf("usage: py [-c <command>] [<filename>]\n");
-    return 1;
-}
-
-mp_obj_t mem_info(void) {
-    printf("mem: total=%d, current=%d, peak=%d\n", m_get_total_bytes_allocated(), m_get_current_bytes_allocated(), m_get_peak_bytes_allocated());
-    return mp_const_none;
-}
-
-mp_obj_t qstr_info(void) {
-    uint n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
-    qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
-    printf("qstr pool: n_pool=%u, n_qstr=%u, n_str_data_bytes=%u, n_total_bytes=%u\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
-    return mp_const_none;
-}
-
-int main(int argc, char **argv) {
-    qstr_init();
-    mp_init();
-
-    mp_obj_t m_sys = mp_obj_new_module(MP_QSTR_sys);
-    mp_obj_t py_argv = mp_obj_new_list(0, NULL);
-    mp_store_attr(m_sys, MP_QSTR_argv, py_argv);
-
-    mp_store_name(qstr_from_str("mem_info"), mp_make_function_n(0, mem_info));
-    mp_store_name(qstr_from_str("qstr_info"), mp_make_function_n(0, qstr_info));
-
-    file_init();
-
-    /*
-    printf("bytes:\n");
-    printf("    total %d\n", m_get_total_bytes_allocated());
-    printf("    cur   %d\n", m_get_current_bytes_allocated());
-    printf("    peak  %d\n", m_get_peak_bytes_allocated());
-    */
-
-    if (argc == 1) {
-        do_repl();
-    } else {
-        for (int a = 1; a < argc; a++) {
-            if (argv[a][0] == '-') {
-                if (strcmp(argv[a], "-c") == 0) {
-                    if (a + 1 >= argc) {
-                        return usage();
-                    }
-                    do_str(argv[a + 1]);
-                    a += 1;
-                } else {
-                    return usage();
-                }
-            } else {
-                for (int i = a; i < argc; i++) {
-                    mp_obj_list_append(py_argv, MP_OBJ_NEW_QSTR(qstr_from_str(argv[i])));
-                }
-                do_file(argv[a]);
-                break;
-            }
-        }
-    }
-
-    mp_deinit();
-
-    //printf("total bytes = %d\n", m_get_total_bytes_allocated());
-    return 0;
-}

windows/qstrdefsport.h

-// qstrs specific to this port
-
-Q(Test)
-
-Q(argv)
-Q(open)
-Q(stdin)
-Q(stdout)
-Q(stderr)
-Q(rawsocket)
-Q(socket)
-Q(sockaddr_in)
-Q(htons)
-Q(inet_aton)
-Q(gethostbyname)
-Q(getaddrinfo)
-Q(microsocket)
-Q(fileno)
-Q(read)
-Q(readall)
-Q(readline)
-Q(write)
-Q(makefile)
-Q(connect)
-Q(bind)
-Q(listen)
-Q(accept)
-Q(recv)
-Q(setsockopt)
-
-Q(io.FileIO)
-Q(ffimod)
-Q(ffifunc)
-Q(fficallback)
-Q(ffivar)