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/* Global declarations for the ed editor. */
/* GNU ed - The GNU line editor.
Copyright (C) 1993, 1994 Andrew Moore, Talke Studio
Copyright (C) 2006, 2007 Antonio Diaz Diaz.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
enum Gflags
{
GLB = 0x01, /* global command */
GLS = 0x02, /* list after command */
GNP = 0x04, /* enumerate after command */
GPR = 0x08, /* print after command */
GSG = 0x10 /* global substitute */
};
typedef struct line /* Line node */
{
struct line *q_forw;
struct line *q_back;
long pos; /* position of text in scratch buffer */
int len; /* length of line */
}
line_t;
typedef struct
{
enum { UADD = 0, UDEL = 1, UMOV = 2, VMOV = 3 } type;
line_t *head; /* head of list */
line_t *tail; /* tail of list */
}
undo_t;
#ifndef max
#define max( a,b ) (( a ) > ( b ) ? ( a ) : ( b ) )
#endif
#ifndef min
#define min( a,b ) (( a ) < ( b ) ? ( a ) : ( b ) )
#endif
/* defined in buf.c */
char append_lines( const char *ibufp2, const int addr, const char isglobal );
char close_sbuf( void );
char copy_lines( const int first_addr, const int second_addr, const int addr );
int current_addr( void );
int dec_addr( int addr );
char delete_lines( const int from, const int to, const char isglobal );
int get_line_node_addr( const line_t *lp );
char *get_sbuf_line( const line_t *lp );
char newline_added( void );
int inc_addr( int addr );
int inc_current_addr( void );
char init_buffers( void );
char isbinary( void );
char modified( void );
char join_lines( const int from, const int to, const char isglobal );
int last_addr( void );
char move_lines( const int first_addr, const int second_addr, const int addr,
const char isglobal );
char open_sbuf( void );
int path_max( const char *filename );
char put_lines( const int addr );
const char *put_sbuf_line( const char *cs, const int addr );
line_t *search_line_node( const int n );
void set_binary( void );
void set_current_addr( const int addr );
void set_modified( const char m );
void set_newline_added( void );
char yank_lines( const int from, const int to );
void clear_undo_stack( void );
void disable_undo( void );
char pop_undo_stack( const char isglobal );
undo_t *push_undo_stack( const int type, const int from, const int to );
/* defined in glbl.c */
void clear_active_list( void );
const line_t *next_active_node( void );
char set_active_node( const line_t *lp );
void unset_active_nodes( const line_t *np, const line_t *mp );
/* defined in io.c */
char display_lines( int from, const int to, const int gflags, const char traditional );
const char *get_extended_line( const char *ibufp2, int *lenp, const char nonl );
const char *get_tty_line( int *lenp );
int read_file( const char *filename, const int addr, const char scripted );
int write_file( const char *filename, const char *mode,
const int from, const int to, const char scripted );
/* defined in main.c */
char is_regular_file( int fd );
char is_valid_filename( const char *name, const char restricted );
void show_strerror( const char *filename, int errcode );
/* defined in main_loop.c */
int main_loop( const char loose, const char restricted, const char scripted,
const char traditional );
void set_def_filename( const char *s );
void set_error_msg( const char *msg );
void set_prompt( const char *s );
void set_verbose( void );
void unmark_line_node( const line_t *lp );
/* defined in re.c */
char build_active_list( const char **ibufpp, const int first_addr,
const int second_addr, const char match );
char extract_subst_tail( const char **ibufpp, int *gflagsp, int *snump,
const char isglobal );
int get_matching_node_addr( const char **ibufpp, const char forward );
char new_compiled_pattern( const char **ibufpp );
char prev_pattern( void );
char search_and_replace( const int first_addr, const int second_addr,
const int gflags, const int snum, const char isglobal );
/* defined in signal.c */
void enable_interrupts( void );
void disable_interrupts( void );
void set_signals( void );
void set_window_lines( const int lines );
int window_columns( void );
int window_lines( void );
char parse_int( int *i, const char *str, const char **tail );
char resize_buffer( char **buf, int *size, int min_size );
const char *skip_blanks( const char *s );
const char *strip_escapes( const char *s );
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