aee.c

aee是一种易使用的文本编辑器。你可以不用说明书来使用它。它提供终端接口和本地的X-windows接口。它的特性包括即弹的菜单

/*
	+---------------------------------------------------------------+
	|								|
	|	Hugh F. Mahon						|
	|	begun Nov. 22, 1985					|
	|								|
	|	ae (another editor)					|
	+---------------------------------------------------------------+

	$Header: /home/hugh/sources/aee/RCS/aee.c,v 1.65 1999/10/10 02:29:39 hugh Exp $

*/

/*
 |	An easy to use, simple screen oriented editor.
 |
 |	THIS MATERIAL IS PROVIDED "AS IS".  THERE ARE
 |	NO WARRANTIES OF ANY KIND WITH REGARD TO THIS
 |	MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE
 |	IMPLIED WARRANTIES OF MERCHANTABILITY AND
 |	FITNESS FOR A PARTICULAR PURPOSE.  Neither
 |	Hewlett-Packard nor Hugh Mahon shall be liable
 |	for errors contained herein, nor for
 |	incidental or consequential damages in
 |	connection with the furnishing, performance or
 |	use of this material.  Neither Hewlett-Packard
 |	nor Hugh Mahon assumes any responsibility for
 |	the use or reliability of this software or
 |	documentation.  This software and
 |	documentation is totally UNSUPPORTED.  There
 |	is no support contract available.  Hewlett-
 |	Packard has done NO Quality Assurance on ANY
 |	of the program or documentation.  You may find
 |	the quality of the materials inferior to
 |	supported materials.
 |
 |	This software is not a product of Hewlett-Packard, Co., or any 
 |	other company.  No support is implied or offered with this software.
 |	You've got the source, and you're on your own.
 |
 |	This software may be distributed under the terms of Larry Wall's 
 |	Artistic license, a copy of which is included in this distribution. 
 |
 |	This notice must be included with this software and any derivatives.
 |
 |	This software and documentation contains
 |	proprietary information which is protected by
 |	copyright.  All rights are reserved.
 |
 */
char *copyright_notice = "Copyright (c) 1986 - 1988, 1991 - 1999 Hugh Mahon.";

char *long_notice[] = {
	"This software and documentation contains", 
	"proprietary information which is protected by", 
	"copyright.  All rights are reserved."
	};

char *version_string = "@(#) aee (another easy editor) version 2.2.3 October 1999 $Revision: 1.65 $";

#include "aee.h"

int eightbit;			/* eight bit character flag		*/

struct stat buf;

#ifndef NO_CATGETS
nl_catd catalog;
#endif /* NO_CATGETS */

extern int errno;

struct text *first_line;	/* first line of current buffer		*/
struct text *dlt_line;		/* structure for info on deleted line	*/
struct text *curr_line;		/* current line cursor is on		*/
struct text *fpste_line;	/* first line of select buffer		*/
struct text *cpste_line;	/* current paste/select line		*/
struct text *paste_buff;	/* first line of paste buffer		*/
struct text *pste_tmp;		/* temporary paste pointer		*/
struct text *tmp_line;		/* temporary line pointer		*/
struct text *srch_line;		/* temporary pointer for search routine */

struct files *top_of_stack;

struct bufr *first_buff;	/* first buffer in list			*/
struct bufr *curr_buff;		/* pointer to current buffer		*/
struct bufr *t_buff;		/* temporary pointer for buffers	*/

struct tab_stops *tabs;

struct del_buffs *undel_first;
struct del_buffs *undel_current;

WINDOW *com_win;		/* command window			*/
WINDOW *help_win;		/* window for help facility		*/
int windows;			/* flag for windows or no windows	*/
WINDOW *info_win;

int lines_moved;		/* number of lines moved in search	*/
int d_wrd_len;			/* length of deleted word		*/
int value;			/* temporary integer value		*/
int tmp_pos;			/* temporary position			*/
int tmp_vert;			/* temporary vertical position		*/
int tmp_horz;			/* temporary horizontal position	*/
int repl_length;		/* length of string to replace		*/
int pst_pos;			/* position in cpste_line->line		*/
int gold_count;			/* number of times to execute pressed key */
int fildes;			/* file descriptor			*/
int get_fd;			/* get file descriptor			*/
int write_fd;			/* write file descriptor		*/
int num_of_bufs;		/* the number of buffers that exist	*/
int temp_stdin;			/* temporary storage for stdin		*/
int temp_stdout;		/* temp storage for stdout descriptor	*/
int temp_stderr;		/* temp storage for stderr descriptor	*/
int pipe_out[2];		/* pipe file desc for output		*/
int pipe_in[2];			/* pipe file descriptors for input	*/
int line_wrap;			/* should line extend forever?		*/
int right_margin;		/* right margin	(if observ_margins = TRUE) */
int left_margin;		/* left margin				*/
int info_type;
int info_win_height = INFO_WIN_HEIGHT_DEF;
int local_LINES = 0;		/* copy of LINES, to detect when win resizes */
int local_COLS = 0;		/* copy of COLS, to detect when win resizes  */
int bit_bucket;			/* file descriptor to /dev/null		*/
int tab_spacing = 8;		/* spacing for tabs			*/

/*
 |	boolean flags
 */

char mark_text;			/* flag to indicate if MARK is active	*/
char journ_on;			/* flag for journaling			*/
char input_file;		/* indicate to read input file		*/
char recv_file;			/* indicate reading a file		*/
char edit;			/* continue executing while true	*/
char gold;			/* 'gold' function key pressed		*/
char recover;			/* set true if recover operation to occur */
char case_sen;			/* case sensitive search flag		*/
char change;			/* indicate changes have been made to file*/
char go_on;			/* loop control for help function	*/
char clr_cmd_line;		/* flag set to clear command line	*/
char literal;		/* is search string to be interpreted literally? */
char forward;	/* if TRUE, search after cursor, else search before cursor */
char echo_flag;			/* allow/disallow echo in init file	*/
char status_line;		/* place status info in the bottom line	*/
char overstrike;		/* overstrike / insert mode flag	*/
char indent;			/* auto-indent mode flag		*/
char expand;			/* expand tabs flag			*/
char shell_fork;
char out_pipe = FALSE;		/* flag that info is piped out		*/
char in_pipe = FALSE;		/* flag that info is piped in		*/
char observ_margins = FALSE;	/* should margins be observed		*/
char right_justify = FALSE;	/* justify right margin when formatting */
char free_d_line = FALSE;	/* free d_line (already freed from del list) */
char free_d_word = FALSE;	/* free d_word (already freed from del list) */
char info_window = TRUE;	/* is info window displayed?		*/
char auto_format = FALSE;	/* automatically format paragraph	*/
char formatted = FALSE;		/* has paragraph been formatted?	*/
char window_resize = FALSE;	/* flag to indicate a resize has occurred */
char change_dir_allowed = TRUE;	/* flag to indicate if chdir is allowed */
char restricted = FALSE;	/* flag to indicate restricted mode	*/
char com_win_initialized = FALSE;
char text_only = TRUE;		/* editor is to treat file being read as 
				   text only (not a binary file)	*/

long mask;			/* mask for sigblock			*/
#ifdef XAE
int win_width;			/* width and height of edit session window */
int win_height;
extern char *xsrch_string;
extern char *xold_string;
extern char *xnew_string;
extern Window testwin;
#endif

char in_string[513];		/* input buffer string			*/
char *pst_line;			/* start of paste line			*/
char *pst_pnt;			/* current position within paste line	*/
char *pste1;			/* temporary pointers for cut/paste ops */
char *pste2;
char *pste3;
char *old_string;		/* old string to be replaced		*/
char *u_old_string;		/* upper case verson of old_string	*/
char *new_string;		/* new string to insert instead of old	*/
char *srch_str;			/* pointer for search string		*/
char *u_srch_str;		/* pointer to non-case sensitive search */
char *in_file_name;		/* name of input file and path		*/
char *short_file_name;		/* name of input file only		*/
char *journ;			/* name of journal file			*/
char *journal_dir = "";		/* name of journal directory		*/
char *out_file;			/* name of output file if not input file*/
char *tmp_file;			/* temporary file name			*/
char d_char;			/* deleted character			*/
char *d_word;			/* deleted word				*/
char *d_line;			/* deleted line				*/
char *term_type;		/* type of terminal being used		*/
char *help_line;			/* input line for help facility		*/
char *sline;			/* temporary line pointer for help fac	*/
char *subject;			/* subject user wants to learn about	*/
char *start_of_string;		/* start of search string		*/
char match_char;		/* character found by search for match	*/
char in_buff_name[128];		/* input buffer name			*/
char out_buff_name[128];	/* output buffer name			*/
char *start_at_line;		/* move to this line at start of session*/
char *print_command = "lp";	/* string to hold command for printing file */
char nohighlight = FALSE;

char *ctr[32];			/* control key strings			*/
char ctr_changed[32];		/* control key strings changed flags	*/
char *g_ctr[32];		/* gold control key strings		*/
char g_ctr_changed[32];	/* gold control key strings changed 	*/
char *f[64];			/* function key strings			*/
char f_changed[64];		/* function key strings			*/
char *g_f[64];			/* gold function key strings		*/
char g_f_changed[64];		/* gold function key strings		*/
char *ctrl_table[] = { 
	"^@", "^A", "^B", "^C", "^D", "^E", "^F", "^G", 
	"^H", "\t", "^J", "^K", "^L", "^M", "^N", "^O", "^P", "^Q", "^R", 
	"^S", "^T", "^U", "^V", "^W", "^X", "^Y", "^Z", "^[", "^\\", "^]", 
	"^^", "^_", "^?"
	};
char *keypads[5];		/* keypad keys from terminfo		*/
char *g_keypads[5];		/* keypad keys from terminfo		*/

int in;				/* input character			*/

FILE *fp;			/* file pointer for input		*/
FILE *outp;			/* pointer for output file		*/
FILE *temp_fp;			/* temporary file pointer		*/
FILE *get_fp;			/* read file pointer			*/
FILE *write_fp;			/* write file pointer			*/

char info_data[MAX_HELP_LINES][MAX_HELP_COLS];

struct edit_keys assignment[] = {
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 }, 
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 },
{ "", "",  0, 0, 0, 0 }
};


/*
 |	allocate space here for the strings that will be in the menu
 */

struct menu_entries modes_menu[] = {
	{"", NULL, NULL, NULL, NULL, 0}, 	/* 0 title		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 1      		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 2      		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 3      		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 4      		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 5      		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 6      		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 7      		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 8      		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 9      		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 10     		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 11     		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 12     		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 13     		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 14     		*/
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 15 text/binary mode  */
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 16 dos/ux text file  */
	{"", NULL, NULL, NULL, NULL, -1}, 	/* 17 save configuration */
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

int modes_initialized = FALSE;

char *mode_strings[NUM_MODES_ITEMS];

struct menu_entries config_dump_menu[] = {
	{"", NULL, NULL, NULL, NULL, 0}, 
	{"", NULL, NULL, NULL, NULL, -1},
	{"", NULL, NULL, NULL, NULL, -1},
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

struct menu_entries leave_menu[] = {
	{"", NULL, NULL, NULL, NULL, 0}, 
	{"", NULL, NULL, NULL, NULL, -1}, 
	{"", NULL, NULL, NULL, NULL, -1}, 
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

struct menu_entries leave_menu_2[] = {
	{"", NULL, NULL, NULL, NULL, 0}, 
	{"", NULL, NULL, NULL, NULL, -1}, 
	{"", NULL, NULL, NULL, NULL, -1}, 
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

struct menu_entries file_menu[] = {
	{"", NULL, NULL, NULL, NULL, 0},
	{"", NULL, NULL, file_op, NULL, READ_FILE},
	{"", NULL, NULL, file_op, NULL, WRITE_FILE},
	{"", NULL, NULL, file_op, NULL, SAVE_FILE},
	{"", NULL, NULL, NULL, print_buffer, -1},
	{"", NULL, NULL, NULL, recover_op, -1},
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

struct menu_entries search_menu[] = {
	{"", NULL, NULL, NULL, NULL, 0}, 
	{"", NULL, NULL, search_prompt, NULL, TRUE},
	{"", NULL, NULL, NULL, search_op, -1},
	{"", NULL, NULL, repl_prompt, NULL, TRUE},
	{"", NULL, NULL, NULL, replace, -1},
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

struct menu_entries spell_menu[] = {
	{"", NULL, NULL, NULL, NULL, 0}, 
	{"", NULL, NULL, NULL, spell_op, -1},
	{"", NULL, NULL, NULL, ispell_op, -1},
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

struct menu_entries misc_menu[] = {
	{"", NULL, NULL, NULL, NULL, 0}, 
	{"", NULL, NULL, NULL, Format, -1},
	{"", NULL, NULL, NULL, shell_op, -1}, 
	{"", menu_op, spell_menu, NULL, NULL, -1}, 
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

struct menu_entries edit_menu[] = {
	{"", NULL, NULL, NULL, NULL, 0}, 
	{"", NULL, NULL, slct, NULL, Mark}, 
	{"", NULL, NULL, NULL, copy, -1}, 
	{"", NULL, NULL, NULL, cut, -1}, 
	{"", NULL, NULL, NULL, paste, -1}, 
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

struct menu_entries main_menu[] = {
	{"", NULL, NULL, NULL, NULL, 0}, 
	{"", NULL, NULL, NULL, leave_op, -1}, 
	{"", NULL, NULL, NULL, help, -1}, 
	{"", menu_op, edit_menu, NULL, NULL, -1}, 
	{"", menu_op, file_menu, NULL, NULL, -1}, 
	{"", NULL, NULL, NULL, redraw, -1}, 
	{"", NULL, NULL, NULL, modes_op, -1}, 
	{"", menu_op, search_menu, NULL, NULL, -1}, 
	{"", menu_op, misc_menu, NULL, NULL, -1}, 
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

struct menu_entries del_buff_menu[] = {
	{"", NULL, NULL, NULL, NULL, MENU_WARN}, 
	{"", NULL, NULL, file_op, NULL, SAVE_FILE}, 
	{"", NULL, NULL, NULL, NULL, -1}, 
	{"", NULL, NULL, NULL, NULL, -1}, 
	{NULL, NULL, NULL, NULL, NULL, -1}
	};

struct menu_entries rae_err_menu[] = {
	{"", NULL, NULL, NULL, NULL, MENU_WARN}, 
	{"", NULL, NULL, NULL, NULL, -1}, 
	{NULL, NULL, NULL, NULL, NULL, -1}
	};


char *commands[70];
char *init_strings[40];

/*
 |	memory debugging macros
 */

#ifdef DEBUG
FILE *error_fp;
#endif /* DEBUG */

/*
 |	declaration for localizable strings
 */

char *ae_help_file, *SL_line_str, *SL_col_str, *SL_lit_str, *SL_nolit_str;
char *SL_fwd_str, *SL_rev_str, *SL_over_str, *SL_insrt_str, *SL_indent_str;
char *SL_noindnt_str, *SL_marg_str, *SL_nomarg_str, *SL_mark_str, *ascii_code_str;
char *left_err_msg, *right_err_msg, *help_err_msg, *prompt_for_more, *topic_prompt;
char *topic_err_msg, *continue_prompt, *printing_msg, *EXPAND_str, *NOEXPAND_str;
char *NOJUSTIFY_str, *JUSTIFY_str, *EXIT_str, *QUIT_str, *AUTOFORMAT_str;
char *NOAUTOFORMAT_str, *INFO_str, *NOINFO_str, *TABS_str, *UNTABS_str;
char *WRITE_str, *READ_str, *SAVE_str, *LITERAL_str, *NOLITERAL_str;
char *STATUS_str, *NOSTATUS_str, *MARGINS_str, *NOMARGINS_str, *INDENT_str;
char *NOINDENT_str, *OVERSTRIKE_str, *NOOVERSTRIKE_str, *LEFTMARGIN_str, *RIGHTMARGIN_str;
char *LINE_str, *FILE_str, *COPYRIGHT_str, *CHARACTER_str, *REDRAW_str;
char *RESEQUENCE_str, *AUTHOR_str, *VERSION_str, *CASE_str, *NOCASE_str;
char *EIGHT_str, *NOEIGHT_str, *WINDOWS_str, *NOWINDOWS_str, *DEFINE_str;
char *SHOW_str, *HELP_str, *PRINT_str, *BUFFER_str, *DELETE_str;
char *GOLD_str, *tab_msg, *file_write_prompt_str, *file_read_prompt_str, *left_mrg_err_msg;
char *right_mrg_err_msg, *left_mrg_setting, *right_mrg_setting, *line_num_str, *lines_from_top;
char *total_lines_str, *current_file_str, *char_str, *key_def_msg, *unkn_syntax_msg;
char *current_buff_msg, *unkn_cmd_msg, *usage_str, *read_only_msg, *no_rcvr_fil_msg;
char *cant_opn_rcvr_fil_msg, *fin_read_file_msg, *rcvr_op_comp_msg, *file_is_dir_msg, *path_not_a_dir_msg;
char *access_not_allowed_msg, *new_file_msg, *cant_open_msg, *bad_rcvr_msg, *reading_file_msg;
char *file_read_lines_msg, *other_buffs_exist_msg, *changes_made_prompt, *no_write_access_msg, *file_exists_prompt;
char *cant_creat_fil_msg, *writing_msg, *file_written_msg, *searching_msg, *fwd_srch_msg;
char *rev_srch_msg, *str_str, *not_fnd_str, *search_prompt_str, *mark_not_actv_str;
char *mark_active_str, *mark_alrdy_actv_str, *no_buff_named_str, *press_ret_to_cont_str, *fn_GOLD_str;
char *fn_DL_str, *fn_DC_str, *fn_CL_str, *fn_NP_str, *fn_PP_str;
char *fn_NB_str, *fn_PB_str, *fn_UDL_str, *fn_UDC_str, *fn_DW_str;
char *fn_UDW_str, *fn_UND_str, *fn_EOL_str, *fn_BOL_str, *fn_BOT_str;
char *fn_EOT_str, *fn_FORMAT_str, *fn_MARGINS_str, *fn_NOMARGINS_str, *fn_IL_str;
char *fn_PRP_str, *fn_RP_str, *fn_MC_str, *fn_PSRCH_str, *fn_SRCH_str;
char *fn_AL_str, *fn_AW_str, *fn_AC_str, *fn_PW_str, *fn_CUT_str;
char *fn_FWD_str, *fn_REV_str, *fn_MARK_str, *fn_UNMARK_str, *fn_APPEND_str;
char *fn_PREFIX_str, *fn_COPY_str, *fn_CMD_str, *fn_PST_str, *fn_RD_str;
char *fn_UP_str, *fn_DOWN_str, *fn_LEFT_str, *fn_RIGHT_str, *fn_BCK_str;
char *fn_CR_str, *fn_EXPAND_str, *fn_NOEXPAND_str, *fn_EXIT_str, *fn_QUIT_str;
char *fn_LITERAL_str, *fn_NOLITERAL_str, *fn_STATUS_str, *fn_NOSTATUS_str, *fn_INDENT_str;
char *fn_NOINDENT_str, *fn_OVERSTRIKE_str, *fn_NOOVERSTRIKE_str, *fn_CASE_str, *fn_NOCASE_str;
char *fn_WINDOWS_str, *fn_NOWINDOWS_str, *fn_HELP_str, *fn_MENU_str, *fwd_mode_str;
char *rev_mode_str, *ECHO_str, *cmd_prompt, *PRINTCOMMAND_str, *replace_action_prompt;
char *replace_prompt_str, *replace_r_char, *replace_skip_char, *replace_all_char, *quit_char;
char *yes_char, *no_char, *cant_find_match_str, *fmting_par_msg, *cancel_string;
char *menu_too_lrg_msg, *shell_cmd_prompt, *shell_echo_msg, *spell_in_prog_msg, *left_marg_prompt;
char *left_mrgn_err_msg, *right_mrgn_prompt, *right_mrgn_err_msg, *cant_redef_msg, *buff_msg;
char *cant_chng_while_mark_msg, *too_many_parms_msg, *buff_is_main_msg, *cant_del_while_mark, *main_buffer_name;
char *cant_del_buf_msg, *HIGHLIGHT_str, *NOHIGHLIGHT_str;
char *non_unique_cmd_msg;
char *ON, *OFF;
char *save_file_name_prompt, *file_not_saved_msg, *cant_reopen_journ;
char *write_err_msg, *jrnl_dir, *CD_str ;
char *no_dir_entered_msg,  *path_not_dir_msg, *path_not_permitted_msg;
char *path_chng_failed_msg, *no_chng_dir_msg, *SPACING_str, *SPACING_msg;
char *help_file_str;
char *pwd_cmd_str, *pwd_err_msg;
char *no_file_string, *no_chng_no_save, *changes_made_title;
char *save_then_delete, *dont_delete, *delete_anyway_msg;