The working part of View. More...

#include <common.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <regex.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>

Include dependency graph for view_engine.c:

Macros
#define	get_next_char()
	read the next characater from the virtual file
#define	get_prev_char()
	read the previous characater from the virtual file

Functions
int	view_file (Init *init)
	Start view.
int	view_cmd_processor (Init *init)
	Main Command Processing Loop for View.
int	get_cmd_char (View view, off_t n)
	Get Command Character and Numeric Argument.
int	get_cmd_arg (View view, char prompt)
	Get Command Argument from User Input.
void	build_prompt (View *view)
	Build Prompt String.
void	cat_file (View *view)
	Concatenate File to Standard Output.
void	lp (char *PrintFile)
	Send File to Print Queue.
void	go_to_mark (View *view, int c)
	Go to Mark.
void	go_to_eof (View *view)
	Go to End of File.
int	go_to_line (View *view, off_t line_idx)
	Go to Specific Line.
void	go_to_percent (View *view, int percent)
	Go to Percent of File.
void	go_to_position (View *view, off_t go_to_pos)
	Go to Specific File Position.
bool	search (View view, int search_cmd, char *regex_pattern)
	Search for Regular Expression Pattern.
void	next_page (View *view)
	Advance to Next Page.
void	prev_page (View *view)
	display previous page
void	resize_page (Init *init)
	Resize Viewing Page.
void	scroll_down_n_lines (View *view, int n)
	Scroll N Lines.
void	scroll_up_n_lines (View *view, int n)
	Scroll Up N Lines.
off_t	get_next_line (View *view, off_t pos)
	Get Next Line from View->buf.
off_t	get_prev_line (View *view, off_t pos)
	Get Previous Line from View->buf.
off_t	get_pos_next_line (View *view, off_t pos)
	Get Position of Next Line.
off_t	get_pos_prev_line (View *view, off_t pos)
	Get Position of Previous Line.
int	fmt_line (View *view)
	Format Line for Display.
void	display_line (View *view)
	Display Line on Padparam View *view data structure.
void	view_display_page (View *view)
	Display Current Page.
void	parse_ansi_str (char ansi_str, attr_t attr, int *cpx)
	Parse ANSI SGR Escape Sequence.
void	view_display_help (Init *init)
	Display View Help File.
int	display_prompt (View view, char s)
	Display Command Line Prompt.
void	remove_file (View *view)
	Remove File.
int	write_view_buffer (Init *init, bool f_strip_ansi)
	Write buffer contents to files.
bool	enter_file_spec (Init init, char file_spec)
	use form to enter a file specification
int	a_toi (char , bool )
	a safer alternative to atoi() for converting ASCII strings to integers.
void	increment_ln (View *view)
	Increment Line Index and Update Line Table.
void	initialize_line_table (View *view)
	Initialize Line Table.
int	pad_refresh (View *view)
	Refresh Pad and Line Number Window.
void	sync_ln (View *view)
	Synchronize Line Table with Current File Position.
void	view_restore_wins ()

Variables
char	prev_regex_pattern [MAXLEN]
FILE *	dbgfp
char	err_msg [MAXLEN]

Detailed Description

The working part of View.

Author: Bill Waller Copyright (c) 2025 MIT License billx.nosp@m.wall.nosp@m.er@gm.nosp@m.ail..nosp@m.com

Date: 2026-02-09

Definition in file view_engine.c.

Function Documentation

◆ view_restore_wins()

void view_restore_wins ( )

Definition at line 1979 of file view_engine.c.

                         {
    wnoutrefresh(view->ln_win);
    wrefresh(view->ln_win);
    wnoutrefresh(view->win);
    wrefresh(view->win);
}

References View::ln_win, view, and View::win.

Variable Documentation

◆ dbgfp

FILE* dbgfp

Definition at line 81 of file view_engine.c.

◆ err_msg

char err_msg[MAXLEN]

Definition at line 118 of file view_engine.c.

◆ prev_regex_pattern

char prev_regex_pattern[MAXLEN]

Definition at line 80 of file view_engine.c.

Referenced by view_cmd_processor().

Macros

Functions