655 lines
14 KiB
C
655 lines
14 KiB
C
/*
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* $Id: awk.c,v 1.62 2006-08-03 09:53:46 bacon Exp $
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*/
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#include <xp/awk/awk.h>
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#include <stdio.h>
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#include <string.h>
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#ifdef XP_CHAR_IS_WCHAR
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#include <wchar.h>
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#endif
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#ifndef __STAND_ALONE
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#include <xp/bas/stdio.h>
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#include <xp/bas/string.h>
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#include <xp/bas/memory.h>
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#include <xp/bas/sysapi.h>
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#include <xp/bas/assert.h>
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#else
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#include <limits.h>
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#ifndef PATH_MAX
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#define XP_PATH_MAX 4096
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#else
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#define XP_PATH_MAX PATH_MAX
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#endif
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#endif
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#ifdef _WIN32
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#include <windows.h>
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#include <tchar.h>
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#pragma warning (disable: 4996)
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#endif
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#ifdef __STAND_ALONE
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#define xp_printf xp_awk_printf
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extern int xp_awk_printf (const xp_char_t* fmt, ...);
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#define xp_strcmp xp_awk_strcmp
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extern int xp_awk_strcmp (const xp_char_t* s1, const xp_char_t* s2);
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#define xp_strlen xp_awk_strlen
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extern int xp_awk_strlen (const xp_char_t* s);
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#include <assert.h>
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#define xp_assert assert
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#include <stdlib.h>
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#define xp_malloc malloc
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#define xp_free free
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#endif
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#if defined(_WIN32) && defined(__STAND_ALONE) && defined(_DEBUG)
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#define _CRTDBG_MAP_ALLOC
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#include <crtdbg.h>
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#endif
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#if defined(__linux) && defined(_DEBUG)
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#include <mcheck.h>
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#endif
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struct src_io
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{
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const xp_char_t* input_file;
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FILE* input_handle;
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};
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static FILE* fopen_t (const xp_char_t* path, const xp_char_t* mode)
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{
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#ifdef _WIN32
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return _tfopen (path, mode);
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#else
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#ifdef XP_CHAR_IS_MCHAR
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const xp_mchar_t* path_mb;
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const xp_mchar_t* mode_mb;
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#else
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xp_mchar_t path_mb[XP_PATH_MAX + 1];
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xp_mchar_t mode_mb[32];
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#endif
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#ifdef XP_CHAR_IS_MCHAR
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path_mb = path;
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mode_mb = mode;
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#else
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if (xp_wcstomcs_strict (
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path, path_mb, xp_countof(path_mb)) == -1) return XP_NULL;
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if (xp_wcstomcs_strict (
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mode, mode_mb, xp_countof(mode_mb)) == -1) return XP_NULL;
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#endif
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return fopen (path_mb, mode_mb);
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#endif
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}
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static FILE* popen_t (const xp_char_t* cmd, const xp_char_t* mode)
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{
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#ifdef _WIN32
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return _tpopen (cmd, mode);
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#else
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#ifdef XP_CHAR_IS_MCHAR
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const xp_mchar_t* cmd_mb;
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const xp_mchar_t* mode_mb;
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#else
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xp_mchar_t cmd_mb[2048];
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xp_mchar_t mode_mb[32];
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#endif
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#ifdef XP_CHAR_IS_MCHAR
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cmd_mb = cmd;
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mode_mb = mode;
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#else
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if (xp_wcstomcs_strict (
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cmd, cmd_mb, xp_countof(cmd_mb)) == -1) return XP_NULL;
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if (xp_wcstomcs_strict (
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mode, mode_mb, xp_countof(mode_mb)) == -1) return XP_NULL;
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#endif
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return popen (cmd_mb, mode_mb);
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#endif
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}
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#ifdef WIN32
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#define fgets_t _fgetts
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#define fputs_t _fputts
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#else
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#ifdef XP_CHAR_IS_MCHAR
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#define fgets_t fgets
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#define fputs_t fputs
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#else
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#define fgets_t fgetws
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#define fputs_t fputws
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#endif
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#endif
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static xp_ssize_t process_source (
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int cmd, void* arg, xp_char_t* data, xp_size_t size)
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{
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struct src_io* src_io = (struct src_io*)arg;
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xp_char_t c;
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switch (cmd)
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{
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case XP_AWK_IO_OPEN:
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{
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if (src_io->input_file == XP_NULL) return 0;
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src_io->input_handle = fopen_t (src_io->input_file, XP_T("r"));
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if (src_io->input_handle == NULL) return -1;
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return 1;
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}
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case XP_AWK_IO_CLOSE:
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{
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if (src_io->input_file == XP_NULL) return 0;
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fclose ((FILE*)src_io->input_handle);
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return 0;
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}
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case XP_AWK_IO_NEXT:
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{
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return 0;
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}
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case XP_AWK_IO_READ:
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{
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if (size <= 0) return -1;
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#ifdef XP_CHAR_IS_MCHAR
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c = fgetc ((FILE*)src_io->input_handle);
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#else
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c = fgetwc ((FILE*)src_io->input_handle);
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#endif
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if (c == XP_CHAR_EOF) return 0;
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*data = c;
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return 1;
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}
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case XP_AWK_IO_WRITE:
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{
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xp_printf (XP_T("XP_AWK_IO_WRITE CALLED FOR SOURCE\n"));
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return -1;
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}
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}
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return -1;
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}
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static xp_ssize_t process_extio_pipe (
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int cmd, void* arg, xp_char_t* data, xp_size_t size)
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{
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xp_awk_extio_t* epa = (xp_awk_extio_t*)arg;
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switch (cmd)
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{
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case XP_AWK_IO_OPEN:
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{
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FILE* handle;
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const xp_char_t* mode;
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if (epa->mode == XP_AWK_IO_PIPE_READ)
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mode = XP_T("r");
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else if (epa->mode == XP_AWK_IO_PIPE_WRITE)
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mode = XP_T("w");
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else return -1; /* TODO: any way to set the error number? */
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xp_printf (XP_TEXT("opending %s of type %d (pipe)\n"), epa->name, epa->type);
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handle = popen_t (epa->name, mode);
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if (handle == NULL) return -1;
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epa->handle = (void*)handle;
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return 1;
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}
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case XP_AWK_IO_CLOSE:
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{
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xp_printf (XP_TEXT("closing %s of type (pipe) %d\n"), epa->name, epa->type);
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fclose ((FILE*)epa->handle);
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epa->handle = NULL;
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return 0;
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}
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case XP_AWK_IO_READ:
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{
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if (fgets_t (data, size, (FILE*)epa->handle) == XP_NULL)
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return 0;
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return xp_strlen(data);
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}
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case XP_AWK_IO_WRITE:
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{
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/*
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if (fputs_t (data, size, (FILE*)epa->handle) == XP_NULL)
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return 0;
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return size;
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*/
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return -1;
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}
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case XP_AWK_IO_NEXT:
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{
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return -1;
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}
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}
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return -1;
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}
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static xp_ssize_t process_extio_file (
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int cmd, void* arg, xp_char_t* data, xp_size_t size)
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{
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xp_awk_extio_t* epa = (xp_awk_extio_t*)arg;
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switch (cmd)
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{
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case XP_AWK_IO_OPEN:
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{
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FILE* handle;
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const xp_char_t* mode;
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if (epa->mode == XP_AWK_IO_FILE_READ)
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mode = XP_T("r");
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else if (epa->mode == XP_AWK_IO_FILE_WRITE)
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mode = XP_T("w");
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else if (epa->mode == XP_AWK_IO_FILE_APPEND)
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mode = XP_T("a");
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else return -1; /* TODO: any way to set the error number? */
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xp_printf (XP_TEXT("opending %s of type %d (file)\n"), epa->name, epa->type);
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handle = fopen_t (epa->name, mode);
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if (handle == NULL) return -1;
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epa->handle = (void*)handle;
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return 1;
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}
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case XP_AWK_IO_CLOSE:
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{
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xp_printf (XP_TEXT("closing %s of type %d (file)\n"), epa->name, epa->type);
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fclose ((FILE*)epa->handle);
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epa->handle = NULL;
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return 0;
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}
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case XP_AWK_IO_READ:
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{
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if (fgets_t (data, size, (FILE*)epa->handle) == XP_NULL)
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return 0;
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return xp_strlen(data);
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}
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case XP_AWK_IO_WRITE:
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{
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/* TODO: how to return error or 0 */
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fputs_t (data, /*size,*/ (FILE*)epa->handle);
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return -1;
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}
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case XP_AWK_IO_NEXT:
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{
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return -1;
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}
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}
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return -1;
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}
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static int open_extio_console (xp_awk_extio_t* epa);
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static int close_extio_console (xp_awk_extio_t* epa);
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static int next_extio_console (xp_awk_extio_t* epa);
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static const xp_char_t* infiles[] =
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{
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//XP_T(""),
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XP_T("awk.in"),
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XP_NULL
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};
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static xp_size_t infile_no = 0;
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static xp_ssize_t process_extio_console (
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int cmd, void* arg, xp_char_t* data, xp_size_t size)
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{
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xp_awk_extio_t* epa = (xp_awk_extio_t*)arg;
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if (cmd == XP_AWK_IO_OPEN)
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{
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return open_extio_console (epa);
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}
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else if (cmd == XP_AWK_IO_CLOSE)
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{
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return close_extio_console (epa);
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}
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else if (cmd == XP_AWK_IO_READ)
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{
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while (fgets_t (data, size, epa->handle) == XP_NULL)
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{
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/* it has reached the end of the current file.
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* open the next file if available */
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if (infiles[infile_no] == XP_NULL)
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{
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/* no more input console */
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/* is this correct??? */
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/*
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if (epa->handle != XP_NULL &&
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epa->handle != stdin &&
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epa->handle != stdout &&
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epa->handle != stderr) fclose (epa->handle);
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epa->handle = XP_NULL;
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*/
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return 0;
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}
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if (infiles[infile_no][0] == XP_T('\0'))
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{
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if (epa->handle != XP_NULL &&
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epa->handle != stdin &&
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epa->handle != stdout &&
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epa->handle != stderr) fclose (epa->handle);
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epa->handle = stdin;
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}
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else
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{
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FILE* fp = fopen_t (infiles[infile_no], XP_T("r"));
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if (fp == XP_NULL)
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{
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xp_printf (XP_TEXT("failed to open the next console of type %x - fopen failure\n"), epa->type);
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return -1;
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}
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if (epa->handle != XP_NULL &&
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epa->handle != stdin &&
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epa->handle != stdout &&
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epa->handle != stderr) fclose (epa->handle);
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xp_printf (XP_TEXT("open the next console [%s]\n"), infiles[infile_no]);
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epa->handle = fp;
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}
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infile_no++;
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}
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return xp_strlen(data);
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}
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else if (cmd == XP_AWK_IO_WRITE)
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{
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/* TODO: how to return error or 0 */
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fputs_t (data, /*size,*/ (FILE*)epa->handle);
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/*MessageBox (NULL, data, data, MB_OK);*/
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return size;
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}
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else if (cmd == XP_AWK_IO_NEXT)
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{
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return next_extio_console (epa);
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}
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return -1;
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}
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static int open_extio_console (xp_awk_extio_t* epa)
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{
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/* TODO: OpenConsole in GUI APPLICATION */
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/* epa->name is always empty for console */
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xp_assert (epa->name[0] == XP_T('\0'));
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xp_printf (XP_TEXT("opening console[%s] of type %x\n"), epa->name, epa->type);
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if (epa->mode == XP_AWK_IO_CONSOLE_READ)
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{
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if (infiles[infile_no] == XP_NULL)
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{
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/* no more input file */
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xp_printf (XP_TEXT("console - no more file\n"));;
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return 0;
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}
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if (infiles[infile_no][0] == XP_T('\0'))
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{
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xp_printf (XP_T(" console(r) - <standard input>\n"));
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epa->handle = stdin;
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}
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else
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{
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/* a temporary variable fp is used here not to change
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* any fields of epa when the open operation fails */
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FILE* fp = fopen_t (infiles[infile_no], XP_T("r"));
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if (fp == XP_NULL)
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{
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xp_printf (XP_TEXT("failed to open console of type %x - fopen failure\n"), epa->type);
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return -1;
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}
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xp_printf (XP_T(" console(r) - %s\n"), infiles[infile_no]);
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epa->handle = fp;
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}
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infile_no++;
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return 1;
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}
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else if (epa->mode == XP_AWK_IO_CONSOLE_WRITE)
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{
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xp_printf (XP_T(" console(w) - <standard output>\n"));
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epa->handle = stdout;
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return 1;
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}
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return -1;
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}
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static int close_extio_console (xp_awk_extio_t* epa)
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{
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xp_printf (XP_TEXT("closing console of type %x\n"), epa->type);
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if (epa->handle != XP_NULL &&
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epa->handle != stdin &&
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epa->handle != stdout &&
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epa->handle != stderr)
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{
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fclose (epa->handle);
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}
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/* TODO: CloseConsole in GUI APPLICATION */
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return 0;
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}
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static int next_extio_console (xp_awk_extio_t* epa)
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{
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int n;
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FILE* fp = epa->handle;
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xp_printf (XP_TEXT("switching console[%s] of type %x\n"), epa->name, epa->type);
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n = open_extio_console(epa);
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if (n == -1) return -1;
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if (n == 0)
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{
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/* if there is no more file, keep the previous handle */
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return 0;
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}
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if (fp != XP_NULL && fp != stdin &&
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fp != stdout && fp != stderr) fclose (fp);
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return n;
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}
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#if defined(__STAND_ALONE) && !defined(_WIN32)
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static int __main (int argc, char* argv[])
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#else
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static int __main (int argc, xp_char_t* argv[])
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#endif
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{
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xp_awk_t* awk;
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struct src_io src_io = { NULL, NULL };
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if ((awk = xp_awk_open()) == XP_NULL)
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{
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xp_printf (XP_T("Error: cannot open awk\n"));
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return -1;
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}
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/* TODO: */
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if (xp_awk_setextio (awk,
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XP_AWK_EXTIO_PIPE, process_extio_pipe, XP_NULL) == -1)
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{
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xp_awk_close (awk);
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xp_printf (XP_T("Error: cannot set extio pipe\n"));
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return -1;
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}
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/* TODO: */
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if (xp_awk_setextio (awk,
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XP_AWK_EXTIO_FILE, process_extio_file, XP_NULL) == -1)
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{
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xp_awk_close (awk);
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xp_printf (XP_T("Error: cannot set extio file\n"));
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return -1;
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}
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if (xp_awk_setextio (awk,
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XP_AWK_EXTIO_CONSOLE, process_extio_console, XP_NULL) == -1)
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{
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xp_awk_close (awk);
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xp_printf (XP_T("Error: cannot set extio file\n"));
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return -1;
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}
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xp_awk_setparseopt (awk,
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XP_AWK_EXPLICIT | XP_AWK_UNIQUE | XP_AWK_DBLSLASHES |
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XP_AWK_SHADING | XP_AWK_IMPLICIT | XP_AWK_SHIFT |
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XP_AWK_EXTIO | XP_AWK_BLOCKLESS);
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if (argc == 2)
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{
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#if defined(__STAND_ALONE) && !defined(_WIN32)
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if (strcmp(argv[1], "-m") == 0)
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#else
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if (xp_strcmp(argv[1], XP_T("-m")) == 0)
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#endif
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{
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xp_awk_close (awk);
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xp_printf (XP_T("Usage: %s [-m] source_file\n"), argv[0]);
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return -1;
|
|
}
|
|
|
|
src_io.input_file = argv[1];
|
|
}
|
|
else if (argc == 3)
|
|
{
|
|
#if defined(__STAND_ALONE) && !defined(_WIN32)
|
|
if (strcmp(argv[1], "-m") == 0)
|
|
#else
|
|
if (xp_strcmp(argv[1], XP_T("-m")) == 0)
|
|
#endif
|
|
{
|
|
xp_awk_setrunopt (awk, XP_AWK_RUNMAIN);
|
|
}
|
|
else
|
|
{
|
|
xp_awk_close (awk);
|
|
xp_printf (XP_T("Usage: %s [-m] source_file\n"), argv[0]);
|
|
return -1;
|
|
}
|
|
|
|
src_io.input_file = argv[2];
|
|
}
|
|
else
|
|
{
|
|
xp_awk_close (awk);
|
|
xp_printf (XP_T("Usage: %s [-m] source_file\n"), argv[0]);
|
|
return -1;
|
|
}
|
|
|
|
if (xp_awk_attsrc(awk, process_source, (void*)&src_io) == -1)
|
|
{
|
|
xp_awk_close (awk);
|
|
xp_printf (XP_T("Error: cannot attach source\n"));
|
|
return -1;
|
|
}
|
|
|
|
if (xp_awk_parse(awk) == -1)
|
|
{
|
|
#if defined(__STAND_ALONE) && !defined(_WIN32) && defined(XP_CHAR_IS_WCHAR)
|
|
xp_printf (
|
|
XP_T("ERROR: cannot parse program - line %u [%d] %ls"),
|
|
(unsigned int)xp_awk_getsrcline(awk),
|
|
xp_awk_geterrnum(awk), xp_awk_geterrstr(awk));
|
|
if (xp_awk_getsuberrnum(awk) != XP_AWK_ENOERR)
|
|
{
|
|
xp_printf (XP_T(" - %ls\n"), xp_awk_getsuberrstr(awk));
|
|
}
|
|
#else
|
|
xp_printf (
|
|
XP_T("ERROR: cannot parse program - line %u [%d] %s"),
|
|
(unsigned int)xp_awk_getsrcline(awk),
|
|
xp_awk_geterrnum(awk), xp_awk_geterrstr(awk));
|
|
if (xp_awk_getsuberrnum(awk) != XP_AWK_ENOERR)
|
|
{
|
|
xp_printf (XP_T(" - %s\n"), xp_awk_getsuberrstr(awk));
|
|
}
|
|
#endif
|
|
xp_printf (XP_T("\n"));
|
|
xp_awk_close (awk);
|
|
return -1;
|
|
}
|
|
|
|
if (xp_awk_run (awk) == -1)
|
|
{
|
|
#if defined(__STAND_ALONE) && !defined(_WIN32) && defined(XP_CHAR_IS_WCHAR)
|
|
xp_printf (
|
|
XP_T("error: cannot run program - [%d] %ls"),
|
|
xp_awk_geterrnum(awk), xp_awk_geterrstr(awk));
|
|
#else
|
|
xp_printf (
|
|
XP_T("error: cannot run program - [%d] %s"),
|
|
xp_awk_geterrnum(awk), xp_awk_geterrstr(awk));
|
|
#endif
|
|
if (xp_awk_getsuberrnum(awk) != XP_AWK_ENOERR)
|
|
{
|
|
xp_printf (XP_T(" - %ls\n"), xp_awk_getsuberrstr(awk));
|
|
}
|
|
xp_printf (XP_T("\n"));
|
|
|
|
xp_awk_close (awk);
|
|
return -1;
|
|
}
|
|
|
|
xp_awk_close (awk);
|
|
return 0;
|
|
}
|
|
|
|
#if defined(__STAND_ALONE) && !defined(_WIN32)
|
|
int main (int argc, char* argv[])
|
|
#else
|
|
int xp_main (int argc, xp_char_t* argv[])
|
|
#endif
|
|
{
|
|
int n;
|
|
#if defined(__linux) && defined(_DEBUG)
|
|
mtrace ();
|
|
#endif
|
|
/*#if defined(_WIN32) && defined(__STAND_ALONE) && defined(_DEBUG)
|
|
_CrtSetDbgFlag (_CRTDBG_LEAK_CHECK_DF | _CRTDBG_ALLOC_MEM_DF | _CRTDBG_CHECK_ALWAYS_DF);
|
|
#endif*/
|
|
|
|
n = __main (argc, argv);
|
|
|
|
#if defined(__linux) && defined(_DEBUG)
|
|
muntrace ();
|
|
#endif
|
|
#if defined(_WIN32) && defined(__STAND_ALONE) && defined(_DEBUG)
|
|
_CrtDumpMemoryLeaks ();
|
|
wprintf (L"Press ENTER to quit\n");
|
|
getchar ();
|
|
#endif
|
|
|
|
return n;
|
|
}
|
|
|