tdestr.h

一个开源著名的TDE编辑器源代码

/*
 * New editor name:  tde, the Thomson-Davis Editor.
 * Author:           Frank Davis
 * Date:             June 5, 1991
 *
 * This modification of Douglas Thomson's code is released into the
 * public domain, Frank Davis.  You may distribute it freely.
 *
 * This file contains define's and structure declarations common to all
 * editor modules.  It should be included in every source code module.
 *
 * I'm so stupid, I can't keep up with which declarations are in which
 * file.  I decided to put all typedefs, structs, and defines in one file.
 * If I don't, I end up defining a typedef one way in one file and a
 * completely different way in another file.
 */


#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <limits.h>

#include <assert.h>
#if defined( __DOS16__ )
 #if defined( __MSC__ )
  #include <malloc.h>          /* for memory allocation */
 #else
  #include <alloc.h>           /* for memory allocation */
 #endif
#endif

/*
 * in unix (POSIX?), getch( ) is in the curses package.  in Linux, ncurses
 *  seems to be the best of the worst curses.
 */
#if defined( __UNIX__ )
   #include <dirent.h>             /* walking down directories */
   #include <limits.h>             /* NAME_MAX and PATH_MAX, POSIX stuff */
   #include <malloc.h>             /* for memory allocation */
   #include <ncurses.h>
   #include <unistd.h>             /* chdir, getcwd, etc... */
   #include <sys/types.h>
   #include <sys/stat.h>
   #include <fcntl.h>              /* creat */
   #define fattr_t mode_t          /* attribute type for unix */
   #define ftime_t time_t          /* timestamp type for unix */
   #ifndef stricmp
   # define stricmp strcasecmp
   #endif
#else
   #include <io.h>                 /* isatty() (DOS16 - I hope MSC has it) */
                                   /* setmode (_setmode for MSC) */
   #include <fcntl.h>              /* O_BINARY (_O_BINARY for MSC) */
   #define fattr_t unsigned int    /* attribute type for dos/djgpp/Win32 */
# if defined( __WIN32__ )
   #define ftime_t FILETIME        /* timestamp type for Win32 */
# else
   #define ftime_t unsigned long   /* timestamp type for dos/djgpp */
# endif
#endif

#if defined( __DJGPP__ )
   #include <sys/farptr.h>
   #include <go32.h>
   #include <dpmi.h>
   #include <dir.h>
   #undef DIRECTORY             /* this define interferes with the lister */
   #include <unistd.h>          /* for isatty() */
   #include <limits.h>
   #undef NAME_MAX              /* defined as 12, yet it should also handle */
   #define NAME_MAX 255         /*  LFN which can be this */
#endif

#if defined( __WIN32__ )
   #include <windows.h>
   #ifdef PATH_MAX              /* MinGW defines this in limits.h */
   # undef PATH_MAX
   #endif
   #define PATH_MAX MAX_PATH
   #define NAME_MAX MAX_PATH
   #undef ERROR                 /* fix this!! */
   #undef DELETE                /* fix this!! */
   #undef TEXT                  /* fix this!! */
   #ifdef IGNORE
   # undef IGNORE               /* MinGW32 */
   #endif
   #ifdef SEARCH_ALL
   # undef SEARCH_ALL           /* Visual Studio */
   #endif

   #ifndef ENABLE_QUICK_EDIT    /* undocumented console modes */
   # define ENABLE_QUICK_EDIT      0x0040
   #endif
   #ifndef ENABLE_EXTENDED_FLAGS
   # define ENABLE_EXTENDED_FLAGS  0x0080
   #endif
#endif

#ifndef PATH_MAX
# define PATH_MAX 100           /* maximum file size 66+1+12+1+just-in-case */
#endif
#ifndef NAME_MAX
# define NAME_MAX 12
#endif



#include "bj_ctype.h"
#include "letters.h"
#include "filmatch.h"


/*
 * defines for the inline assembler.
 */
#if defined( __MSC__ )
   #define  ASSEMBLE   _asm
#else
   #define  ASSEMBLE   asm
#endif


#if defined( __UNIX__ )
   #define my_stdprn stderr
   #define STDFILE "/dev/tty"
#else
# if defined( __WIN32__ )
   #define my_stdprn stderr
# else
   #define my_stdprn stdprn
# endif
   #define STDFILE "CON"
#endif

/*
 * based on code contributed by "The Big Boss" <[e-mail]>
 *  let's look for a config file in the current directory or in the user's
 *  home directory, or the executable's directory.
 */
#if defined( __UNIX__ )
# define CONFIGFILE      ".tdecfg"
# define HELPFILE        ".tdehlp"
# define SYNTAXFILE      ".tdeshl"
# define WORKSPACEFILE   ".tdewsp"
#else
# define CONFIGFILE      "tde.cfg"
# define HELPFILE        "tde.hlp"
# define SYNTAXFILE      "tde.shl"
# define WORKSPACEFILE   "tde.wsp"
#endif


/*
 * jmh 020817: If this is the first line of a file, then it is a valid
 *              workspace file.
 */
#define WORKSPACE_SIG    "TDE Workspace File"


/*
 * based on code by chen.
 *  in both DOS and UNIX, let's assume the biggest screen is 132x60.
 * jmh - Browsing through Ralf Brown's Interrupt List, I see that the
 *       widest screen is 160 and the longest is 75.
 * jmh 991019: 80 lines is now the biggest (6-line font, 480 scan lines).
 */
#define MAX_COLS           160  /* widest  screen ever used */
#define MAX_LINES           80  /* highest screen ever used */

#define BUFF_SIZE         1042  /* buffer size for lines */
#define MAX_LINE_LENGTH   1040  /* longest line allowed in file */
#define MAX_TAB_SIZE        80  /* largest tab size allowed (jmh 021105) */
#define NO_MARKERS           4  /* maximum no. of markers (inc. previous) */
#if defined( __DOS16__ )
#define UNDO_STACK_LEN     200  /* number of lines in undo stack */
#define MAX_UNDOS          200  /* number of undos to keep */
#else
#define UNDO_STACK_LEN       0
#define MAX_UNDOS            0
#endif

/*
 * when we read in a file, lets try to match the size of the read buffer
 *   with some multiple of a hardware or software cache that may be present.
 */
#define READ_LENGTH             1024
#define DEFAULT_BIN_LENGTH      64


#define REGX_SIZE               200     /* maximum number of nodes in nfa */


/*
 * general defines.
 */
#ifndef ERROR
# define ERROR            (-1)  /* abnormal termination */
#endif
#ifndef OK
# define OK                  0  /* normal termination */
#endif
#ifndef TRUE
# define TRUE                1  /* logical true */
#endif
#ifndef FALSE
# define FALSE               0  /* logical false */
#endif

#define MAX_KEYS            88  /* number of physical keys recognised by TDE */
#define MODIFIERS            8  /* number of states of those keys */
#define AVAIL_KEYS         117  /* number of config keys */
#define STROKE_LIMIT      1024  /* number of key strokes in playback buffer */


#define STACK_UNDERFLOW      1  /* code for underflowing macro stack */
#define STACK_OVERFLOW       2  /* code for overflowing macro stack */
#define SAS_P               20  /* number of sas pointers to tokens */
#define NUM_FUNCS          239

#define NUM_COLORS          28  /* number of color fields in TDE */
#define SHL_NUM_COLORS      14  /* number of colors for syntax highlighting */
#define SHL_NUM_FEATURES    27  /* number of customizable features */


/*
 * Function flags (jmh 031129).  These are used to indicate a function is
 * available in read-only mode and to help the menu determine invalid fns.
 */
#define F_MODIFY         1      /* function modifies the file */
#define F_BOX            2      /* function requires BOX block */
#define F_LINE           4      /* function requires LINE block */
#define F_STREAM         8      /* function requires STREAM block */
#define F_BSAFE         16      /* block function does not modify its file */

#define F_BLOCK         (F_BOX | F_LINE | F_STREAM)


/*
 * special cases for keyboard mapping -  see define.h
 */
#define RTURN           _ENTER        /* Return key */
#define ESC             _ESC          /* Escape key */


/*
 * The following defines are used by the "error" function to indicate
 *  how serious the error is.
 */
#define WARNING         1    /* user must acknowledge, editor continues */
#define INFO            2    /* display message, acknowledge, continue */


/*
 * define the type of block marked by user and block actions
 */
#define NOTMARKED        0      /* block type undefined */
#define BOX              1      /* block marked by row and column */
#define LINE             2      /* block marked by begin and end lines */
#define STREAM           3      /* block marked by begin and end characters */

#define MOVE             1
#define DELETE           2
#define COPY             3
#define KOPY             4
#define FILL             5
#define OVERLAY          6
#define NUMBER           7
#define SWAP             8
#define BORDER           9      /* added by jmh 980731 */
#define JUSTIFY         10      /* added by jmh 980810 */
#define SUM             11      /* added by jmh 991112 */

#define LEFT            1
#define RIGHT           2

#define ASCENDING       1
#define DESCENDING      2


/*
 * three types of ways to update windows
 * jmh 991124: added a RULER type, treat as a mask.
 */
#define LOCAL           1
#define NOT_LOCAL       2
#define GLOBAL          3       /* LOCAL | NOT_LOCAL */
#define RULER           4

/*
 * Additional flags to indicate read-only status from command line.
 */
#define O_READ_ONLY     4
#define O_READ_WRITE    8
#define CMDLINE        16       /* jmh 030303 */

#define CURLINE         1
#define NOTCURLINE      2


/*
 * search/replace flags.
 */
#define BOYER_MOORE     0
#define REG_EXPRESSION  1

#define CLR_SEARCH      0
#define WRAPPED         1
#define SEARCHING       2
#define REPLACING       3
#define NFA_GAVE_UP     4
#define CHANGED        12
#define SORTING        13

#define IGNORE          1
#define MATCH           2

#define PROMPT          1
#define NOPROMPT        2

#define FORWARD         1
#define BACKWARD        2

#define BEGIN           1
#define END             2

#define BEGINNING       1
#define CURRENT         2

/*
 * jmh 991006: flags to indicate what type of search is being performed
 */
#define SEARCH_REGX     1       /* TRUE = regx,      FALSE = text        */
#define SEARCH_BACK     2       /* TRUE = backward,  FALSE = forward     */
#define SEARCH_BLOCK    4       /* TRUE = block,     FALSE = file        */
#define SEARCH_BEGIN    8       /* TRUE = beginning, FALSE = current     */
#define SEARCH_I       16       /* TRUE = isearch,   FALSE = normal      */
#define SEARCH_ALL     32       /* search all loaded files               */
#define SEARCH_RESULTS 64       /* all matching lines go in a new window */


/*
 * additional messages included with the search ones.
 */
#define DIFFING         5
#define NEXTKEY         6
#define UNDO_GROUP      7       /* 7 is off,  8 is on */
#define UNDO_MOVE       9       /* 9 is off, 10 is on */
#define TALLYING       11


/*
 * get_response flags
 */
#define R_PROMPT   1            /* display responses */
#define R_MACRO    2            /* accept response from a macro */
#define R_DEFAULT  4            /* accept the first response as a default */
#define R_ABORT    8            /* cancel query */
#define R_NOMACRO  (R_PROMPT | R_DEFAULT | R_ABORT)
#define R_ALL      (R_MACRO  | R_NOMACRO)


/*
 * word wrap flag.
 */
#define NO_WRAP         0
#define FIXED_WRAP      1
#define DYNAMIC_WRAP    2


/*
 * used in interrupt 0x21 function xx for checking file status
 */
#define EXIST           0
#define WRITE           2
#define READ            4
#define READ_WRITE      6

#define NORMAL          0x00
#define READ_ONLY       0x01
#define HIDDEN          0x02
#define SYSTEM          0x04
#define VOLUME_LABEL    0x08
#define SUBDIRECTORY    0x10
#define ARCHIVE         0x20

/*
 * critical error def's
 */
#define RETRY           1
#define ABORT           2
#define FAIL            3


/*
 * flags used for opening files to write either in binary or text mode.
 * crlf is for writing files in text mode - Operating System converts
 * lf to crlf automatically on output.  in binary mode, lf is not translated.
 */
#define CRLF            0
#define LF              1
#define BINARY          2
#define TEXT            3
#define NATIVE          4

#define OVERWRITE       1
#define APPEND          2


/*
 * cursor sizes (modified by jmh 990404)
 */
#define SMALL_CURSOR    0
#define MEDIUM_CURSOR   1
#define LARGE_CURSOR    2