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Diffstat (limited to 'ed.h')
| -rw-r--r-- | ed.h | 142 |
1 files changed, 142 insertions, 0 deletions
@@ -0,0 +1,142 @@ +/* Global declarations for the ed editor. */ +/* GNU ed - The GNU line editor. + Copyright (C) 1993, 1994 Andrew Moore, Talke Studio + Copyright (C) 2006, 2007, 2008, 2009 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 buffer.c */ +char append_lines( const char *ibufp, 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 ); +int inc_addr( int addr ); +int inc_current_addr( void ); +char init_buffers( void ); +char isbinary( void ); +char join_lines( const int from, const int to, const char isglobal ); +int last_addr( void ); +char modified( void ); +char move_lines( const int first_addr, const int second_addr, const int addr, + const char isglobal ); +char newline_added( void ); +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 ); +undo_t *push_undo_atom( const int type, const int from, const int to ); +void reset_undo_state( void ); +char undo( const char isglobal ); + +/* defined in global.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 *get_extended_line( const char *ibufp, int *lenp, const char nonl ); +const char *get_tty_line( int *lenp ); +int read_file( const char *filename, const int addr ); +int write_file( const char * const filename, const char * const mode, + const int from, const int to ); + +/* defined in main.c */ +char is_regular_file( int fd ); +char may_access_filename( const char *name ); +char restricted( void ); +char scripted( void ); +void show_strerror( const char *filename, int errcode ); +char traditional( void ); + +/* defined in main_loop.c */ +int main_loop( const char loose ); +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 regex.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 disable_interrupts( void ); +void enable_interrupts( void ); +char parse_int( int *i, const char *str, const char **tail ); +char resize_buffer( char **buf, int *size, int min_size ); +char resize_line_buffer( const line_t ***buf, int *size, int min_size ); +char resize_undo_buffer( undo_t **buf, int *size, int min_size ); +void set_signals( void ); +void set_window_lines( const int lines ); +const char *strip_escapes( const char *s ); +int window_columns( void ); +int window_lines( void ); |