/* * STEVIE - Simply Try this Editor for VI Enthusiasts * * Code Contributions By : Tim Thompson twitch!tjt * Tony Andrews onecom!wldrdg!tony * G. R. (Fred) Walter watmath!watcgl!grwalter */ #include "env.h" #include #ifndef ATARI # ifndef UNIX # include # endif #endif #include #ifndef MWC # include #endif #include "ascii.h" #include "keymap.h" #include "param.h" #include "term.h" #include "macros.h" #ifdef AMIGA /* * This won't be needed if you have a version of Lattice 4.01 without broken * break signal handling. */ #include #endif extern char *strchr(); #define NORMAL 0 #define CMDLINE 1 #define INSERT 2 #define APPEND 3 #define UNDO 4 #define REDO 5 #define PUT 6 #define FORWARD 7 #define BACKWARD 8 #define VALID 9 #define NOT_VALID 10 #define VALID_TO_CURSCHAR 11 /* * Boolean type definition and constants */ typedef int bool_t; #ifndef TRUE #define FALSE (0) #define TRUE (1) #endif #define SORTOF (2) #define YES TRUE #define NO FALSE #define MAYBE SORTOF /* * Maximum screen dimensions */ #define MAX_COLUMNS 140L /* * Buffer sizes */ #define CMDBUFFSIZE MAX_COLUMNS /* size of the command processing buffer */ #define LSIZE 512 /* max. size of a line in the tags file */ #define IOSIZE (1024+1) /* file i/o and sprintf buffer size */ #define YANKSIZE 5200 /* yank buffer size */ #define INSERT_SIZE 5300 /* insert, redo and undo buffer size must be * bigger than YANKSIZE */ #define REDO_UNDO_SIZE 5400 /* redo, undo and (undo an undo) buffer size * must be bigger than INSERT_SIZE */ #define READSIZE 5500 /* read buffer size must be bigger than * YANKSIZE and REDO_UNDO_SIZE */ /* * SLOP is the amount of extra space we get for text on a line during editing * operations that need more space. This keeps us from calling alloc every * time we get a character during insert mode. No extra space is allocated * when the file is initially read. */ #define SLOP 10 /* * LINEINC is the gap we leave between the artificial line numbers. This * helps to avoid renumbering all the lines every time a new line is * inserted. * * Since line numbers are stored in longs (32 bits), a LINEINC of 10000 * lets us have > 200,000 lines and we won't have to renumber very often. */ #define LINEINC 10000 #define CHANGED { Changed = TRUE; } #define UNCHANGED { Changed = FALSE; } struct line { struct line *next; /* next line */ struct line *prev; /* previous line */ char *s; /* text for this line */ int size; /* actual size of space at 's' */ unsigned long num; /* line "number" */ }; #define LINEOF(x) ((x)->linep->num) struct lptr { struct line *linep; /* line we're referencing */ int index; /* position within that line */ }; typedef struct line LINE; typedef struct lptr LPtr; struct charinfo { char ch_size; char *ch_str; }; extern struct charinfo chars[]; extern int State; extern int Rows; extern int Columns; extern char *Realscreen; extern char *Nextscreen; extern int NumLineSizes; extern LINE **LinePointers; extern char *LineSizes; extern char *Filename; extern LPtr *Filemem; extern LPtr *Filetop; extern LPtr *Fileend; extern LPtr *Topchar; extern LPtr *Botchar; extern LPtr *Curschar; extern LPtr *Insstart; extern int Cursrow, Curscol, Cursvcol, Curswant; extern bool_t set_want_col; extern int Prenum; extern bool_t Changed; extern bool_t RedrawingDisabled; extern bool_t MustRedrawLine; extern bool_t MustRedrawScreen; extern bool_t UndoInProgress; extern bool_t Binary; extern char *IObuff; extern char *Insbuffptr; extern char *Insbuff; extern char *Readbuffptr; extern char *Readbuff; extern char *Redobuffptr; extern char *Redobuff; extern char *Undobuffptr; extern char *Undobuff; extern char *UndoUndobuffptr; extern char *UndoUndobuff; extern char *Yankbuffptr; extern char *Yankbuff; extern char last_command; extern char last_command_char; extern char *strcpy(); /* alloc.c */ char *alloc(); char *strsave(); void screenalloc(), filealloc(), freeall(); LINE *newline(); bool_t canincrease(); /* cmdline.c */ void readcmdline(); void dotag(); void msg(), emsg(), smsg(); void gotocmdline(); void wait_return(); /* dec.c */ int dec(); /* edit.c */ void edit(), insertchar(), getout(), scrollup(), scrolldown(), beginline(); bool_t oneright(), oneleft(), oneup(), onedown(); /* fileio.c */ void filemess(), renum(); bool_t readfile(), writeit(); /* updateNs.c */ void updateNextscreen(); /* updateRs.c */ void updateRealscreen(); /* help.c */ bool_t help(); /* inc.c */ int inc(); /* linefunc.c */ LPtr *nextline(), *prevline(), *coladvance(); /* main.c */ void stuffReadbuff(); void stuffnumReadbuff(); char vgetc(); char vpeekc(); /* mark.c */ void setpcmark(), clrall(), clrmark(); bool_t setmark(); LPtr *getmark(); /* misccmds.c */ bool_t OpenForward(); bool_t OpenBackward(); void fileinfo(), inschar(), insstr(), delline(); bool_t delchar(); int cntllines(), plines(); LPtr *gotoline(); /* normal.c */ void normal(); void ResetBuffers(); void AppendToInsbuff(); void AppendToRedobuff(); void AppendNumberToRedobuff(); void AppendToUndobuff(); void AppendNumberToUndobuff(); void AppendPositionToUndobuff(); void AppendToUndoUndobuff(); void AppendNumberToUndoUndobuff(); void AppendPositionToUndoUndobuff(); bool_t linewhite(); /* mk.c */ char *mkstr(); char *mkline(); /* param.c */ void doset(); /* screen.c */ void nexttoscreen(); void updateline(); void redrawline(); void screenclear(); void cursupdate(); void prt_line(); void s_del(); void s_ins(); /* search.c */ void doglob(); void dosub(); void searchagain(); bool_t dosearch(); bool_t repsearch(); bool_t searchc(), crepsearch(), findfunc(); LPtr *showmatch(); LPtr *fwd_word(), *bck_word(), *end_word(); /* * Machine-dependent routines. */ #ifdef AMIGA # include "amiga.h" #endif #ifdef BSD # include "bsd.h" #endif #ifdef UNIX # include "unix.h" #endif #ifdef TOS # include "tos.h" #endif #ifdef OS2 # include "os2.h" #endif #ifdef DOS # include "dos.h" #endif