home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Professional
/
OS2PRO194.ISO
/
os2
/
editor
/
stevie
/
term.h
< prev
next >
Wrap
C/C++ Source or Header
|
1994-01-31
|
7KB
|
160 lines
/* $Header: /nw/tony/src/stevie/src/RCS/term.h,v 1.7 89/08/01 17:25:18 tony Exp $
*
* System-dependent escape sequence definitions.
*/
#ifdef TERMCAP
extern char *T_EL; /* erase the entire current line */
extern char *T_IL; /* insert one line */
extern char *T_DL; /* delete one line */
extern char *T_SC; /* save the cursor position */
extern char *T_ED; /* erase display (may optionally home cursor) */
extern char *T_RC; /* restore the cursor position */
extern char *T_CI; /* invisible cursor (very optional) */
extern char *T_CV; /* visible cursor (very optional) */
extern char *T_CM; /* cursor motion string */
#else /* !TERMCAP */
/*
* This file contains the machine dependent escape sequences that
* the editor needs to perform various operations. Some of the sequences
* here are optional. Anything not available should be indicated by
* a null string. In the case of insert/delete line sequences, the
* editor checks the capability and works around the deficiency, if
* necessary.
*
* Currently, insert/delete line sequences are used for screen scrolling.
* There are lots of terminals that have 'index' and 'reverse index'
* capabilities, but no line insert/delete. For this reason, the editor
* routines s_ins() and s_del() should be modified to use 'index'
* sequences when the line to be inserted or deleted is line zero.
*/
/*
* The macro names here correspond (more or less) to the actual ANSI names
*/
# ifdef ATARI
# ifdef MINIX
# define T_EL "\033[2K" /* erase the entire current line */
# define T_IL "\033[L" /* insert one line */
# define T_DL "\033[M" /* delete one line */
# define T_SC "\0337" /* save the cursor position */
# define T_ED "\033[2J" /* erase display (option: home cursor) */
# define T_RC "\0338" /* restore the cursor position */
# define T_CI "" /* invisible cursor (very optional) */
# define T_CV "" /* visible cursor (very optional) */
# else /* !MINIX */
# define T_EL "\033l" /* erase the entire current line */
# define T_IL "\033L" /* insert one line */
# define T_DL "\033M" /* delete one line */
# define T_SC "\033j" /* save the cursor position */
# define T_ED "\033E" /* erase display (may optionally home cursor) */
# define T_RC "\033k" /* restore the cursor position */
# define T_CI "\033f" /* invisible cursor (very optional) */
# define T_CV "\033e" /* visible cursor (very optional) */
# endif /* ?MINIX */
# endif /* ATARI */
# ifdef UNIX
/*
* The following sequences are hard-wired for ansi-like terminals. To get
* termcap support, define TERMCAP in env.h and these sequences go away.
*/
# define T_EL "\033[2K" /* erase the entire current line */
# define T_IL "\033[L" /* insert one line */
# define T_DL "\033[M" /* delete one line */
# define T_ED "\033[2J" /* erase display (may home cursor) */
# define T_SC "\0337" /* save the cursor position */
# define T_RC "\0338" /* restore the cursor position */
# define T_CI "" /* invisible cursor (very optional) */
# define T_CV "" /* visible cursor (very optional) */
# endif /* UNIX */
# ifdef OS2
/*
* The OS/2 ansi console driver is pretty deficient. No insert or delete line
* sequences. The erase line sequence only erases from the cursor to the end
* of the line. For our purposes that works out okay, since the only time
* T_EL is used is when the cursor is in column 0.
*
* The insert/delete line sequences marked here are actually implemented in
* the file os2.c using direct OS/2 system calls. This makes the capability
* available for the rest of the editor via appropriate escape sequences
* passed to outstr().
*/
# define T_EL "\033[K" /* erase the entire current line */
# define T_IL "\033[L" /* insert one line - fake (see os2.c) */
# define T_DL "\033[M" /* delete one line - fake (see os2.c) */
# define T_ED "\033[2J" /* erase display (may home cursor) */
# define T_SC "\033[s" /* save the cursor position */
# define T_RC "\033[u" /* restore the cursor position */
# define T_CI "" /* invisible cursor (very optional) */
# define T_CV "" /* visible cursor (very optional) */
# endif /* OS2 */
# ifdef DOS
/*
* DOS sequences
*
* Some of the following sequences require the use of the "nansi.sys"
* console driver. The standard "ansi.sys" driver doesn't support
* sequences for insert/delete line.
*/
# define T_EL "\033[K" /* erase the entire current line */
# define T_IL "\033[L" /* insert line (requires nansi.sys) */
# define T_DL "\033[M" /* delete line (requires nansi.sys) */
# define T_ED "\033[2J" /* erase display (may home cursor) */
# define T_SC "\033[s" /* save the cursor position */
# define T_RC "\033[u" /* restore the cursor position */
# define T_CI "" /* invisible cursor (very optional) */
# define T_CV "" /* visible cursor (very optional) */
# endif /* DOS */
#endif /* ?TERMCAP */
/*
* Machine-variant screen handling definitions.
*
* Define some macros which for invoking screen functions, whether by
* calling a bios function or outputting an escape sequence to be
* interpreted by a PC console driver or terminal.
*
* At this writing, not all of Stevie has been converted to use these
* macros. So far, only DOS and PC BIOS versions are completely converted.
* Other versions are partly converted (because of changes I made in Stevie's
* common code), but they have not been tested. I'll convert others which I'm
* in a position to test, but I'll leave any I can't test alone. Hopefully,
* this will minimize any damage to working versions which I can't test. -LAS
*/
#ifdef BIOS
# define CANDL TRUE /* Can delete lines */
# define CANIL TRUE /* Can insert lines */
# define CLEOL bios_t_el() /* Erase to end-of-line */
# define CLS bios_t_ed() /* Erase entire display */
# define CRTDL(r,l) bios_t_dl(r,l) /* Delete lines from display */
# define CRTIL(r,l) bios_t_il(r,l) /* Insert lines in display */
# define CUROFF bios_t_ci() /* Make cursor invisible */
# define CURON bios_t_cv() /* Make cursor visible */
# define RESCUR bios_t_rc() /* Restore saved cursor pos. */
# define SAVCUR bios_t_sc() /* Save cursor position */
#else /* !BIOS */
# define CANDL (T_DL[0]!='\0') /* see if can delete lines */
# define CANIL (T_IL[0]!='\0') /* see if can insert lines */
# define CLEOL outstr(T_EL) /* Erase to end-of-line */
# define CLS outstr(T_ED) /* Erase entire display */
# define CRTDL(r,l) DO_DL(r,l) /* Delete lines from display */
# define CRTIL(r,l) DO_IL(r,l) /* Insert lines in display */
# define CUROFF outstr(T_CI) /* Make cursor invisible */
# define CURON outstr(T_CV) /* Make cursor visible */
# define RESCUR outstr(T_RC) /* Restore saved cursor pos. */
# define SAVCUR outstr(T_SC) /* Save cursor position */
# define DO_DL(r,l) {int __xx_knt = l; while (__xx_knt-- > 0) {outstr(T_DL);} }
# define DO_IL(r,l) {int __xx_knt = l; while (__xx_knt-- > 0) {outstr(T_IL);} }
#endif /* ?BIOS */