-/* vi: set sw=8 ts=8: */
+/* vi: set sw=4 ts=4: */
/*
* tiny vi.c: A small 'vi' clone
* Copyright (C) 2000, 2001 Sterling Huxley <sterling@europa.com>
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
-/*
- * To compile for standalone use:
- * gcc -Wall -Os -s -DSTANDALONE -o vi vi.c
- * or
- * gcc -Wall -Os -s -DSTANDALONE -DCONFIG_FEATURE_VI_CRASHME -o vi vi.c # include testing features
- * strip vi
- */
-
/*
* Things To Do:
* EXINIT
* add magic to search /foo.*bar
* add :help command
* :map macros
- * how about mode lines: vi: set sw=8 ts=8:
* if mark[] values were line numbers rather than pointers
* it would be easier to change the mark when add/delete lines
* More intelligence in refresh()
* An "ex" line oriented mode- maybe using "cmdedit"
*/
-//---- Feature -------------- Bytes to implement
-#ifdef STANDALONE
-#define vi_main main
-#define CONFIG_FEATURE_VI_COLON // 4288
-#define CONFIG_FEATURE_VI_YANKMARK // 1408
-#define CONFIG_FEATURE_VI_SEARCH // 1088
-#define CONFIG_FEATURE_VI_USE_SIGNALS // 1056
-#define CONFIG_FEATURE_VI_DOT_CMD // 576
-#define CONFIG_FEATURE_VI_READONLY // 128
-#define CONFIG_FEATURE_VI_SETOPTS // 576
-#define CONFIG_FEATURE_VI_SET // 224
-#define CONFIG_FEATURE_VI_WIN_RESIZE // 256 WIN_RESIZE
-// To test editor using CRASHME:
-// vi -C filename
-// To stop testing, wait until all to text[] is deleted, or
-// Ctrl-Z and kill -9 %1
-// while in the editor Ctrl-T will toggle the crashme function on and off.
-//#define CONFIG_FEATURE_VI_CRASHME // randomly pick commands to execute
-#endif /* STANDALONE */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <strings.h>
-#include <termios.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <time.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <setjmp.h>
-#include <regex.h>
-#include <ctype.h>
-#include <assert.h>
-#include <errno.h>
-#include <stdarg.h>
-#ifndef STANDALONE
-#include "busybox.h"
-#define vi_Version BB_VER " " BB_BT
-#else
-#define vi_Version "standalone"
-#endif /* STANDALONE */
+#include "libbb.h"
+
+#define ENABLE_FEATURE_VI_CRASHME 0
-#ifdef CONFIG_LOCALE_SUPPORT
+#if ENABLE_LOCALE_SUPPORT
#define Isprint(c) isprint((c))
#else
-#define Isprint(c) ( (c) >= ' ' && (c) != 127 && (c) != ((unsigned char)'\233') )
+/* 0x9b is Meta-ESC */
+#define Isprint(c) ((unsigned char)(c) >= ' ' && (c) != 0x7f && (unsigned char)(c) != 0x9b)
#endif
-#ifndef TRUE
-#define TRUE ((int)1)
-#define FALSE ((int)0)
-#endif /* TRUE */
-#define MAX_SCR_COLS BUFSIZ
+enum {
+ MAX_LINELEN = CONFIG_FEATURE_VI_MAX_LEN,
+ MAX_SCR_COLS = CONFIG_FEATURE_VI_MAX_LEN,
+};
// Misc. non-Ascii keys that report an escape sequence
-#define VI_K_UP 128 // cursor key Up
-#define VI_K_DOWN 129 // cursor key Down
-#define VI_K_RIGHT 130 // Cursor Key Right
-#define VI_K_LEFT 131 // cursor key Left
-#define VI_K_HOME 132 // Cursor Key Home
-#define VI_K_END 133 // Cursor Key End
-#define VI_K_INSERT 134 // Cursor Key Insert
-#define VI_K_PAGEUP 135 // Cursor Key Page Up
-#define VI_K_PAGEDOWN 136 // Cursor Key Page Down
-#define VI_K_FUN1 137 // Function Key F1
-#define VI_K_FUN2 138 // Function Key F2
-#define VI_K_FUN3 139 // Function Key F3
-#define VI_K_FUN4 140 // Function Key F4
-#define VI_K_FUN5 141 // Function Key F5
-#define VI_K_FUN6 142 // Function Key F6
-#define VI_K_FUN7 143 // Function Key F7
-#define VI_K_FUN8 144 // Function Key F8
-#define VI_K_FUN9 145 // Function Key F9
-#define VI_K_FUN10 146 // Function Key F10
-#define VI_K_FUN11 147 // Function Key F11
-#define VI_K_FUN12 148 // Function Key F12
+#define VI_K_UP (char)128 // cursor key Up
+#define VI_K_DOWN (char)129 // cursor key Down
+#define VI_K_RIGHT (char)130 // Cursor Key Right
+#define VI_K_LEFT (char)131 // cursor key Left
+#define VI_K_HOME (char)132 // Cursor Key Home
+#define VI_K_END (char)133 // Cursor Key End
+#define VI_K_INSERT (char)134 // Cursor Key Insert
+#define VI_K_PAGEUP (char)135 // Cursor Key Page Up
+#define VI_K_PAGEDOWN (char)136 // Cursor Key Page Down
+#define VI_K_FUN1 (char)137 // Function Key F1
+#define VI_K_FUN2 (char)138 // Function Key F2
+#define VI_K_FUN3 (char)139 // Function Key F3
+#define VI_K_FUN4 (char)140 // Function Key F4
+#define VI_K_FUN5 (char)141 // Function Key F5
+#define VI_K_FUN6 (char)142 // Function Key F6
+#define VI_K_FUN7 (char)143 // Function Key F7
+#define VI_K_FUN8 (char)144 // Function Key F8
+#define VI_K_FUN9 (char)145 // Function Key F9
+#define VI_K_FUN10 (char)146 // Function Key F10
+#define VI_K_FUN11 (char)147 // Function Key F11
+#define VI_K_FUN12 (char)148 // Function Key F12
/* vt102 typical ESC sequence */
/* terminal standout start/normal ESC sequence */
S_TO_WS = 2, // used in skip_thing() for moving "dot"
S_OVER_WS = 3, // used in skip_thing() for moving "dot"
S_END_PUNCT = 4, // used in skip_thing() for moving "dot"
- S_END_ALNUM = 5 // used in skip_thing() for moving "dot"
+ S_END_ALNUM = 5, // used in skip_thing() for moving "dot"
};
-typedef unsigned char Byte;
+/* vi.c expects chars to be unsigned. */
+/* busybox build system provides that, but it's better */
+/* to audit and fix the source */
static int vi_setops;
#define VI_AUTOINDENT 1
#define err_method (vi_setops & VI_ERR_METHOD)
-static int editing; // >0 while we are editing a file
-static int cmd_mode; // 0=command 1=insert 2=replace
-static int file_modified; // buffer contents changed
-static int last_file_modified = -1;
-static int fn_start; // index of first cmd line file name
-static int save_argc; // how many file names on cmd line
-static int cmdcnt; // repetition count
-static fd_set rfds; // use select() for small sleeps
-static struct timeval tv; // use select() for small sleeps
-static int rows, columns; // the terminal screen is this size
-static int crow, ccol, offset; // cursor is on Crow x Ccol with Horz Ofset
-static Byte *status_buffer; // mesages to the user
+static smallint editing; // >0 while we are editing a file
+ // [code audit says "can be 0 or 1 only"]
+static smallint cmd_mode; // 0=command 1=insert 2=replace
+static smallint file_modified; // buffer contents changed
+static smallint last_file_modified = -1;
+static int fn_start; // index of first cmd line file name
+static int save_argc; // how many file names on cmd line
+static int cmdcnt; // repetition count
+static int rows, columns; // the terminal screen is this size
+static int crow, ccol, offset; // cursor is on Crow x Ccol with Horz Ofset
+static char *status_buffer; // mesages to the user
#define STATUS_BUFFER_LEN 200
static int have_status_msg; // is default edit status needed?
+ // [don't make smallint!]
static int last_status_cksum; // hash of current status line
-static Byte *cfn; // previous, current, and next file name
-static Byte *text, *end, *textend; // pointers to the user data in memory
-static Byte *screen; // pointer to the virtual screen buffer
-static int screensize; // and its size
-static Byte *screenbegin; // index into text[], of top line on the screen
-static Byte *dot; // where all the action takes place
+static char *cfn; // previous, current, and next file name
+//static char *text, *end; // pointers to the user data in memory
+static char *screen; // pointer to the virtual screen buffer
+static int screensize; // and its size
+static char *screenbegin; // index into text[], of top line on the screen
+//static char *dot; // where all the action takes place
static int tabstop;
-static struct termios term_orig, term_vi; // remember what the cooked mode was
-static Byte erase_char; // the users erase character
-static Byte last_input_char; // last char read from user
-static Byte last_forward_char; // last char searched for with 'f'
+static char erase_char; // the users erase character
+static char last_input_char; // last char read from user
+static char last_forward_char; // last char searched for with 'f'
-#ifdef CONFIG_FEATURE_VI_OPTIMIZE_CURSOR
+#if ENABLE_FEATURE_VI_READONLY
+static smallint vi_readonly, readonly;
+#endif
+#if ENABLE_FEATURE_VI_DOT_CMD
+static smallint adding2q; // are we currently adding user input to q
+static char *last_modifying_cmd; // last modifying cmd for "."
+static char *ioq, *ioq_start; // pointer to string for get_one_char to "read"
+#endif
+#if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR
static int last_row; // where the cursor was last moved to
-#endif /* CONFIG_FEATURE_VI_OPTIMIZE_CURSOR */
-#ifdef CONFIG_FEATURE_VI_USE_SIGNALS
-static jmp_buf restart; // catch_sig()
-#endif /* CONFIG_FEATURE_VI_USE_SIGNALS */
-#if defined(CONFIG_FEATURE_VI_USE_SIGNALS) || defined(CONFIG_FEATURE_VI_CRASHME)
+#endif
+#if ENABLE_FEATURE_VI_USE_SIGNALS || ENABLE_FEATURE_VI_CRASHME
static int my_pid;
#endif
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
-static int adding2q; // are we currently adding user input to q
-static Byte *last_modifying_cmd; // last modifying cmd for "."
-static Byte *ioq, *ioq_start; // pointer to string for get_one_char to "read"
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
-#if defined(CONFIG_FEATURE_VI_DOT_CMD) || defined(CONFIG_FEATURE_VI_YANKMARK)
-static Byte *modifying_cmds; // cmds that modify text[]
-#endif /* CONFIG_FEATURE_VI_DOT_CMD || CONFIG_FEATURE_VI_YANKMARK */
-#ifdef CONFIG_FEATURE_VI_READONLY
-static int vi_readonly, readonly;
-#endif /* CONFIG_FEATURE_VI_READONLY */
-#ifdef CONFIG_FEATURE_VI_YANKMARK
-static Byte *reg[28]; // named register a-z, "D", and "U" 0-25,26,27
-static int YDreg, Ureg; // default delete register and orig line for "U"
-static Byte *mark[28]; // user marks points somewhere in text[]- a-z and previous context ''
-static Byte *context_start, *context_end;
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
-#ifdef CONFIG_FEATURE_VI_SEARCH
-static Byte *last_search_pattern; // last pattern from a '/' or '?' search
-#endif /* CONFIG_FEATURE_VI_SEARCH */
-
-
-static void edit_file(Byte *); // edit one file
-static void do_cmd(Byte); // execute a command
-static void sync_cursor(Byte *, int *, int *); // synchronize the screen cursor to dot
-static Byte *begin_line(Byte *); // return pointer to cur line B-o-l
-static Byte *end_line(Byte *); // return pointer to cur line E-o-l
-static Byte *prev_line(Byte *); // return pointer to prev line B-o-l
-static Byte *next_line(Byte *); // return pointer to next line B-o-l
-static Byte *end_screen(void); // get pointer to last char on screen
-static int count_lines(Byte *, Byte *); // count line from start to stop
-static Byte *find_line(int); // find begining of line #li
-static Byte *move_to_col(Byte *, int); // move "p" to column l
-static int isblnk(Byte); // is the char a blank or tab
+#if ENABLE_FEATURE_VI_DOT_CMD || ENABLE_FEATURE_VI_YANKMARK
+static char *modifying_cmds; // cmds that modify text[]
+#endif
+#if ENABLE_FEATURE_VI_SEARCH
+static char *last_search_pattern; // last pattern from a '/' or '?' search
+#endif
+
+/* Moving biggest data to malloced space... */
+struct globals {
+ /* many references - keep near the top of globals */
+ char *text, *end; // pointers to the user data in memory
+ char *dot; // where all the action takes place
+#if ENABLE_FEATURE_VI_YANKMARK
+ char *reg[28]; // named register a-z, "D", and "U" 0-25,26,27
+ int YDreg, Ureg; // default delete register and orig line for "U"
+ char *mark[28]; // user marks points somewhere in text[]- a-z and previous context ''
+ char *context_start, *context_end;
+#endif
+ /* a few references only */
+#if ENABLE_FEATURE_VI_USE_SIGNALS
+ jmp_buf restart; // catch_sig()
+#endif
+ struct termios term_orig, term_vi; // remember what the cooked mode was
+#if ENABLE_FEATURE_VI_COLON
+ char *initial_cmds[3]; // currently 2 entries, NULL terminated
+#endif
+};
+#define G (*ptr_to_globals)
+#define text (G.text )
+#define end (G.end )
+#define dot (G.dot )
+#define reg (G.reg )
+#define YDreg (G.YDreg )
+#define Ureg (G.Ureg )
+#define mark (G.mark )
+#define context_start (G.context_start )
+#define context_end (G.context_end )
+#define restart (G.restart )
+#define term_orig (G.term_orig )
+#define term_vi (G.term_vi )
+#define initial_cmds (G.initial_cmds )
+
+static void edit_file(char *); // edit one file
+static void do_cmd(char); // execute a command
+static void sync_cursor(char *, int *, int *); // synchronize the screen cursor to dot
+static char *begin_line(char *); // return pointer to cur line B-o-l
+static char *end_line(char *); // return pointer to cur line E-o-l
+static char *prev_line(char *); // return pointer to prev line B-o-l
+static char *next_line(char *); // return pointer to next line B-o-l
+static char *end_screen(void); // get pointer to last char on screen
+static int count_lines(char *, char *); // count line from start to stop
+static char *find_line(int); // find begining of line #li
+static char *move_to_col(char *, int); // move "p" to column l
+static int isblnk(char); // is the char a blank or tab
static void dot_left(void); // move dot left- dont leave line
static void dot_right(void); // move dot right- dont leave line
static void dot_begin(void); // move dot to B-o-l
static void dot_scroll(int, int); // move the screen up or down
static void dot_skip_over_ws(void); // move dot pat WS
static void dot_delete(void); // delete the char at 'dot'
-static Byte *bound_dot(Byte *); // make sure text[0] <= P < "end"
-static Byte *new_screen(int, int); // malloc virtual screen memory
-static Byte *new_text(int); // malloc memory for text[] buffer
-static Byte *char_insert(Byte *, Byte); // insert the char c at 'p'
-static Byte *stupid_insert(Byte *, Byte); // stupidly insert the char c at 'p'
-static Byte find_range(Byte **, Byte **, Byte); // return pointers for an object
-static int st_test(Byte *, int, int, Byte *); // helper for skip_thing()
-static Byte *skip_thing(Byte *, int, int, int); // skip some object
-static Byte *find_pair(Byte *, Byte); // find matching pair () [] {}
-static Byte *text_hole_delete(Byte *, Byte *); // at "p", delete a 'size' byte hole
-static Byte *text_hole_make(Byte *, int); // at "p", make a 'size' byte hole
-static Byte *yank_delete(Byte *, Byte *, int, int); // yank text[] into register then delete
+static char *bound_dot(char *); // make sure text[0] <= P < "end"
+static char *new_screen(int, int); // malloc virtual screen memory
+static char *new_text(int); // malloc memory for text[] buffer
+static char *char_insert(char *, char); // insert the char c at 'p'
+static char *stupid_insert(char *, char); // stupidly insert the char c at 'p'
+static char find_range(char **, char **, char); // return pointers for an object
+static int st_test(char *, int, int, char *); // helper for skip_thing()
+static char *skip_thing(char *, int, int, int); // skip some object
+static char *find_pair(char *, char); // find matching pair () [] {}
+static char *text_hole_delete(char *, char *); // at "p", delete a 'size' byte hole
+static char *text_hole_make(char *, int); // at "p", make a 'size' byte hole
+static char *yank_delete(char *, char *, int, int); // yank text[] into register then delete
static void show_help(void); // display some help info
static void rawmode(void); // set "raw" mode on tty
static void cookmode(void); // return to "cooked" mode on tty
static int mysleep(int); // sleep for 'h' 1/100 seconds
-static Byte readit(void); // read (maybe cursor) key from stdin
-static Byte get_one_char(void); // read 1 char from stdin
-static int file_size(const Byte *); // what is the byte size of "fn"
-static int file_insert(Byte *, Byte *, int);
-static int file_write(Byte *, Byte *, Byte *);
+static char readit(void); // read (maybe cursor) key from stdin
+static char get_one_char(void); // read 1 char from stdin
+static int file_size(const char *); // what is the byte size of "fn"
+static int file_insert(char *, char *);
+#if ENABLE_FEATURE_VI_READONLY
+static void update_ro_status(const char *);
+#else
+static ALWAYS_INLINE void update_ro_status(const char *name) {}
+#endif
+static int file_write(char *, char *, char *);
static void place_cursor(int, int, int);
static void screen_erase(void);
static void clear_to_eol(void);
static void show_status_line(void); // put a message on the bottom line
static void psb(const char *, ...); // Print Status Buf
static void psbs(const char *, ...); // Print Status Buf in standout mode
-static void ni(Byte *); // display messages
+static void ni(const char *); // display messages
static int format_edit_status(void); // format file status on status line
static void redraw(int); // force a full screen refresh
-static void format_line(Byte*, Byte*, int);
+static void format_line(char*, char*, int);
static void refresh(int); // update the terminal from screen[]
static void Indicate_Error(void); // use flash or beep to indicate error
#define indicate_error(c) Indicate_Error()
static void Hit_Return(void);
-#ifdef CONFIG_FEATURE_VI_SEARCH
-static Byte *char_search(Byte *, Byte *, int, int); // search for pattern starting at p
-static int mycmp(Byte *, Byte *, int); // string cmp based in "ignorecase"
-#endif /* CONFIG_FEATURE_VI_SEARCH */
-#ifdef CONFIG_FEATURE_VI_COLON
-static Byte *get_one_address(Byte *, int *); // get colon addr, if present
-static Byte *get_address(Byte *, int *, int *); // get two colon addrs, if present
-static void colon(Byte *); // execute the "colon" mode cmds
-#endif /* CONFIG_FEATURE_VI_COLON */
-#ifdef CONFIG_FEATURE_VI_USE_SIGNALS
+#if ENABLE_FEATURE_VI_SEARCH
+static char *char_search(char *, const char *, int, int); // search for pattern starting at p
+static int mycmp(const char *, const char *, int); // string cmp based in "ignorecase"
+#endif
+#if ENABLE_FEATURE_VI_COLON
+static char *get_one_address(char *, int *); // get colon addr, if present
+static char *get_address(char *, int *, int *); // get two colon addrs, if present
+static void colon(char *); // execute the "colon" mode cmds
+#endif
+#if ENABLE_FEATURE_VI_USE_SIGNALS
static void winch_sig(int); // catch window size changes
static void suspend_sig(int); // catch ctrl-Z
static void catch_sig(int); // catch ctrl-C and alarm time-outs
-static void core_sig(int); // catch a core dump signal
-#endif /* CONFIG_FEATURE_VI_USE_SIGNALS */
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
-static void start_new_cmd_q(Byte); // new queue for command
+#endif
+#if ENABLE_FEATURE_VI_DOT_CMD
+static void start_new_cmd_q(char); // new queue for command
static void end_cmd_q(void); // stop saving input chars
-#else /* CONFIG_FEATURE_VI_DOT_CMD */
-#define end_cmd_q()
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
-#ifdef CONFIG_FEATURE_VI_WIN_RESIZE
-static void window_size_get(int); // find out what size the window is
-#endif /* CONFIG_FEATURE_VI_WIN_RESIZE */
-#ifdef CONFIG_FEATURE_VI_SETOPTS
-static void showmatching(Byte *); // show the matching pair () [] {}
-#endif /* CONFIG_FEATURE_VI_SETOPTS */
-#if defined(CONFIG_FEATURE_VI_YANKMARK) || defined(CONFIG_FEATURE_VI_SEARCH) || defined(CONFIG_FEATURE_VI_CRASHME)
-static Byte *string_insert(Byte *, Byte *); // insert the string at 'p'
-#endif /* CONFIG_FEATURE_VI_YANKMARK || CONFIG_FEATURE_VI_SEARCH || CONFIG_FEATURE_VI_CRASHME */
-#ifdef CONFIG_FEATURE_VI_YANKMARK
-static Byte *text_yank(Byte *, Byte *, int); // save copy of "p" into a register
-static Byte what_reg(void); // what is letter of current YDreg
-static void check_context(Byte); // remember context for '' command
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
-#ifdef CONFIG_FEATURE_VI_CRASHME
+#else
+#define end_cmd_q() ((void)0)
+#endif
+#if ENABLE_FEATURE_VI_SETOPTS
+static void showmatching(char *); // show the matching pair () [] {}
+#endif
+#if ENABLE_FEATURE_VI_YANKMARK || (ENABLE_FEATURE_VI_COLON && ENABLE_FEATURE_VI_SEARCH) || ENABLE_FEATURE_VI_CRASHME
+static char *string_insert(char *, char *); // insert the string at 'p'
+#endif
+#if ENABLE_FEATURE_VI_YANKMARK
+static char *text_yank(char *, char *, int); // save copy of "p" into a register
+static char what_reg(void); // what is letter of current YDreg
+static void check_context(char); // remember context for '' command
+#endif
+#if ENABLE_FEATURE_VI_CRASHME
static void crash_dummy();
static void crash_test();
static int crashme = 0;
-#endif /* CONFIG_FEATURE_VI_CRASHME */
+#endif
static void write1(const char *out)
fputs(out, stdout);
}
+int vi_main(int argc, char **argv);
int vi_main(int argc, char **argv)
{
int c;
RESERVE_CONFIG_BUFFER(STATUS_BUFFER, STATUS_BUFFER_LEN);
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
int i;
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
-#if defined(CONFIG_FEATURE_VI_USE_SIGNALS) || defined(CONFIG_FEATURE_VI_CRASHME)
+#endif
+#if ENABLE_FEATURE_VI_USE_SIGNALS || ENABLE_FEATURE_VI_CRASHME
my_pid = getpid();
#endif
-#ifdef CONFIG_FEATURE_VI_CRASHME
- (void) srand((long) my_pid);
-#endif /* CONFIG_FEATURE_VI_CRASHME */
- status_buffer = (Byte *)STATUS_BUFFER;
+ PTR_TO_GLOBALS = xzalloc(sizeof(G));
+
+#if ENABLE_FEATURE_VI_CRASHME
+ srand((long) my_pid);
+#endif
+
+ status_buffer = STATUS_BUFFER;
last_status_cksum = 0;
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
vi_readonly = readonly = FALSE;
if (strncmp(argv[0], "view", 4) == 0) {
readonly = TRUE;
vi_readonly = TRUE;
}
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#endif
vi_setops = VI_AUTOINDENT | VI_SHOWMATCH | VI_IGNORECASE | VI_ERR_METHOD;
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
for (i = 0; i < 28; i++) {
reg[i] = 0;
} // init the yank regs
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
-#if defined(CONFIG_FEATURE_VI_DOT_CMD) || defined(CONFIG_FEATURE_VI_YANKMARK)
- modifying_cmds = (Byte *) "aAcCdDiIJoOpPrRsxX<>~"; // cmds modifying text[]
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
+#endif
+#if ENABLE_FEATURE_VI_DOT_CMD || ENABLE_FEATURE_VI_YANKMARK
+ modifying_cmds = (char *) "aAcCdDiIJoOpPrRsxX<>~"; // cmds modifying text[]
+#endif
- // 1- process $HOME/.exrc file
+ // 1- process $HOME/.exrc file (not inplemented yet)
// 2- process EXINIT variable from environment
// 3- process command line args
- while ((c = getopt(argc, argv, "hCR")) != -1) {
+#if ENABLE_FEATURE_VI_COLON
+ {
+ char *p = getenv("EXINIT");
+ if (p && *p)
+ initial_cmds[0] = xstrdup(p);
+ }
+#endif
+ while ((c = getopt(argc, argv, "hCR" USE_FEATURE_VI_COLON("c:"))) != -1) {
switch (c) {
-#ifdef CONFIG_FEATURE_VI_CRASHME
+#if ENABLE_FEATURE_VI_CRASHME
case 'C':
crashme = 1;
break;
-#endif /* CONFIG_FEATURE_VI_CRASHME */
-#ifdef CONFIG_FEATURE_VI_READONLY
+#endif
+#if ENABLE_FEATURE_VI_READONLY
case 'R': // Read-only flag
readonly = TRUE;
vi_readonly = TRUE;
break;
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#endif
//case 'r': // recover flag- ignore- we don't use tmp file
//case 'x': // encryption flag- ignore
//case 'c': // execute command first
+#if ENABLE_FEATURE_VI_COLON
+ case 'c': // cmd line vi command
+ if (*optarg)
+ initial_cmds[initial_cmds[0] != 0] = xstrdup(optarg);
+ break;
//case 'h': // help -- just use default
+#endif
default:
show_help();
return 1;
//----- This is the main file handling loop --------------
if (optind >= argc) {
- editing = 1; // 0= exit, 1= one file, 2= multiple files
+ editing = 1; // 0= exit, 1= one file, 2 = multiple files
edit_file(0);
} else {
for (; optind < argc; optind++) {
- editing = 1; // 0=exit, 1=one file, 2+ =many files
+ editing = 1; // 0=exit, 1=one file, 2+ = many files
free(cfn);
- cfn = (Byte *) bb_xstrdup(argv[optind]);
+ cfn = xstrdup(argv[optind]);
edit_file(cfn);
}
}
//-----------------------------------------------------------
- return (0);
+ return 0;
}
-#ifdef CONFIG_FEATURE_VI_WIN_RESIZE
-//----- See what the window size currently is --------------------
-static inline void window_size_get(int fd)
+static void edit_file(char * fn)
{
- get_terminal_width_height(fd, &columns, &rows);
-}
-#endif /* CONFIG_FEATURE_VI_WIN_RESIZE */
-
-static void edit_file(Byte * fn)
-{
- Byte c;
+ char c;
int cnt, size, ch;
-#ifdef CONFIG_FEATURE_VI_USE_SIGNALS
+#if ENABLE_FEATURE_VI_USE_SIGNALS
int sig;
-#endif /* CONFIG_FEATURE_VI_USE_SIGNALS */
-#ifdef CONFIG_FEATURE_VI_YANKMARK
- static Byte *cur_line;
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif
+#if ENABLE_FEATURE_VI_YANKMARK
+ static char *cur_line;
+#endif
rawmode();
rows = 24;
columns = 80;
- ch= -1;
-#ifdef CONFIG_FEATURE_VI_WIN_RESIZE
- window_size_get(0);
-#endif /* CONFIG_FEATURE_VI_WIN_RESIZE */
+ ch = -1;
+ if (ENABLE_FEATURE_VI_WIN_RESIZE)
+ get_terminal_width_height(0, &columns, &rows);
new_screen(rows, columns); // get memory for virtual screen
cnt = file_size(fn); // file size
new_text(size); // get a text[] buffer
screenbegin = dot = end = text;
if (fn != 0) {
- ch= file_insert(fn, text, cnt);
+ ch = file_insert(fn, text);
+ update_ro_status(fn);
}
if (ch < 1) {
- (void) char_insert(text, '\n'); // start empty buf with dummy line
+ char_insert(text, '\n'); // start empty buf with dummy line
}
file_modified = 0;
last_file_modified = -1;
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
YDreg = 26; // default Yank/Delete reg
Ureg = 27; // hold orig line for "U" cmd
for (cnt = 0; cnt < 28; cnt++) {
mark[cnt] = 0;
} // init the marks
mark[26] = mark[27] = text; // init "previous context"
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif
last_forward_char = last_input_char = '\0';
crow = 0;
ccol = 0;
-#ifdef CONFIG_FEATURE_VI_USE_SIGNALS
+#if ENABLE_FEATURE_VI_USE_SIGNALS
catch_sig(0);
- core_sig(0);
signal(SIGWINCH, winch_sig);
signal(SIGTSTP, suspend_sig);
sig = setjmp(restart);
if (sig != 0) {
- const char *msg = "";
-
- if (sig == SIGWINCH)
- msg = "(window resize)";
- if (sig == SIGHUP)
- msg = "(hangup)";
- if (sig == SIGINT)
- msg = "(interrupt)";
- if (sig == SIGTERM)
- msg = "(terminate)";
- if (sig == SIGBUS)
- msg = "(bus error)";
- if (sig == SIGSEGV)
- msg = "(I tried to touch invalid memory)";
- if (sig == SIGALRM)
- msg = "(alarm)";
-
- psbs("-- caught signal %d %s--", sig, msg);
screenbegin = dot = text;
}
-#endif /* CONFIG_FEATURE_VI_USE_SIGNALS */
+#endif
editing = 1;
cmd_mode = 0; // 0=command 1=insert 2='R'eplace
tabstop = 8;
offset = 0; // no horizontal offset
c = '\0';
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
+#if ENABLE_FEATURE_VI_DOT_CMD
free(last_modifying_cmd);
free(ioq_start);
- ioq = ioq_start = last_modifying_cmd = 0;
+ ioq = ioq_start = last_modifying_cmd = NULL;
adding2q = 0;
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
+#endif
redraw(FALSE); // dont force every col re-draw
show_status_line();
+#if ENABLE_FEATURE_VI_COLON
+ {
+ char *p, *q;
+ int n = 0;
+
+ while ((p = initial_cmds[n])) {
+ do {
+ q = p;
+ p = strchr(q,'\n');
+ if (p)
+ while (*p == '\n')
+ *p++ = '\0';
+ if (*q)
+ colon(q);
+ } while (p);
+ free(initial_cmds[n]);
+ initial_cmds[n] = NULL;
+ n++;
+ }
+ }
+#endif
//------This is the main Vi cmd handling loop -----------------------
while (editing > 0) {
-#ifdef CONFIG_FEATURE_VI_CRASHME
+#if ENABLE_FEATURE_VI_CRASHME
if (crashme > 0) {
if ((end - text) > 1) {
crash_dummy(); // generate a random command
} else {
crashme = 0;
- dot =
- string_insert(text, (Byte *) "\n\n##### Ran out of text to work on. #####\n\n"); // insert the string
+ dot = string_insert(text, "\n\n##### Ran out of text to work on. #####\n\n"); // insert the string
refresh(FALSE);
}
}
-#endif /* CONFIG_FEATURE_VI_CRASHME */
+#endif
last_input_char = c = get_one_char(); // get a cmd from user
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
// save a copy of the current line- for the 'U" command
if (begin_line(dot) != cur_line) {
cur_line = begin_line(dot);
text_yank(begin_line(dot), end_line(dot), Ureg);
}
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
+#endif
+#if ENABLE_FEATURE_VI_DOT_CMD
// These are commands that change text[].
// Remember the input for the "." command
if (!adding2q && ioq_start == 0
- && strchr((char *) modifying_cmds, c) != NULL) {
+ && strchr(modifying_cmds, c)
+ ) {
start_new_cmd_q(c);
}
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
+#endif
do_cmd(c); // execute the user command
//
// poll to see if there is input already waiting. if we are
refresh(FALSE);
show_status_line();
}
-#ifdef CONFIG_FEATURE_VI_CRASHME
+#if ENABLE_FEATURE_VI_CRASHME
if (crashme > 0)
crash_test(); // test editor variables
-#endif /* CONFIG_FEATURE_VI_CRASHME */
+#endif
}
//-------------------------------------------------------------------
}
//----- The Colon commands -------------------------------------
-#ifdef CONFIG_FEATURE_VI_COLON
-static Byte *get_one_address(Byte * p, int *addr) // get colon addr, if present
+#if ENABLE_FEATURE_VI_COLON
+static char *get_one_address(char * p, int *addr) // get colon addr, if present
{
int st;
- Byte *q;
+ char *q;
-#ifdef CONFIG_FEATURE_VI_YANKMARK
- Byte c;
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
-#ifdef CONFIG_FEATURE_VI_SEARCH
- Byte *pat, buf[BUFSIZ];
-#endif /* CONFIG_FEATURE_VI_SEARCH */
+#if ENABLE_FEATURE_VI_YANKMARK
+ char c;
+#endif
+#if ENABLE_FEATURE_VI_SEARCH
+ char *pat, buf[MAX_LINELEN];
+#endif
*addr = -1; // assume no addr
if (*p == '.') { // the current line
p++;
q = begin_line(dot);
*addr = count_lines(text, q);
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
} else if (*p == '\'') { // is this a mark addr
p++;
c = tolower(*p);
if (c >= 'a' && c <= 'z') {
// we have a mark
c = c - 'a';
- q = mark[(int) c];
+ q = mark[(unsigned char) c];
if (q != NULL) { // is mark valid
*addr = count_lines(text, q); // count lines
}
}
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
-#ifdef CONFIG_FEATURE_VI_SEARCH
+#endif
+#if ENABLE_FEATURE_VI_SEARCH
} else if (*p == '/') { // a search pattern
q = buf;
for (p++; *p; p++) {
*q++ = *p;
*q = '\0';
}
- pat = (Byte *) bb_xstrdup((char *) buf); // save copy of pattern
+ pat = xstrdup(buf); // save copy of pattern
if (*p == '/')
p++;
q = char_search(dot, pat, FORWARD, FULL);
*addr = count_lines(text, q);
}
free(pat);
-#endif /* CONFIG_FEATURE_VI_SEARCH */
+#endif
} else if (*p == '$') { // the last line in file
p++;
q = begin_line(end - 1);
*addr = count_lines(text, q);
} else if (isdigit(*p)) { // specific line number
- sscanf((char *) p, "%d%n", addr, &st);
+ sscanf(p, "%d%n", addr, &st);
p += st;
} else { // I don't reconise this
// unrecognised address- assume -1
*addr = -1;
}
- return (p);
+ return p;
}
-static Byte *get_address(Byte *p, int *b, int *e) // get two colon addrs, if present
+static char *get_address(char *p, int *b, int *e) // get two colon addrs, if present
{
//----- get the address' i.e., 1,3 'a,'b -----
// get FIRST addr, if present
// get SECOND addr, if present
p = get_one_address(p, e);
}
-ga0:
+ ga0:
while (isblnk(*p))
p++; // skip over trailing spaces
- return (p);
+ return p;
}
-#ifdef CONFIG_FEATURE_VI_SETOPTS
-static void setops(const Byte *args, const char *opname, int flg_no,
+#if ENABLE_FEATURE_VI_SET && ENABLE_FEATURE_VI_SETOPTS
+static void setops(const char *args, const char *opname, int flg_no,
const char *short_opname, int opt)
{
- const char *a = (char *) args + flg_no;
+ const char *a = args + flg_no;
int l = strlen(opname) - 1; /* opname have + ' ' */
- if (strncasecmp(a, opname, l) == 0 ||
- strncasecmp(a, short_opname, 2) == 0) {
- if(flg_no)
+ if (strncasecmp(a, opname, l) == 0
+ || strncasecmp(a, short_opname, 2) == 0
+ ) {
+ if (flg_no)
vi_setops &= ~opt;
- else
+ else
vi_setops |= opt;
}
}
#endif
-static void colon(Byte * buf)
+static void colon(char * buf)
{
- Byte c, *orig_buf, *buf1, *q, *r;
- Byte *fn, cmd[BUFSIZ], args[BUFSIZ];
- int i, l, li, ch, st, b, e;
+ char c, *orig_buf, *buf1, *q, *r;
+ char *fn, cmd[MAX_LINELEN], args[MAX_LINELEN];
+ int i, l, li, ch, b, e;
int useforce = FALSE, forced = FALSE;
- struct stat st_buf;
// :3154 // if (-e line 3154) goto it else stay put
// :4,33w! foo // write a portion of buffer to file "foo"
// :!<cmd> // run <cmd> then return
//
- if (strlen((char *) buf) <= 0)
+ if (!buf[0])
goto vc1;
if (*buf == ':')
buf++; // move past the ':'
- li = st = ch = i = 0;
+ li = ch = i = 0;
b = e = -1;
q = text; // assume 1,$ for the range
r = end - 1;
li = count_lines(text, end - 1);
fn = cfn; // default to current file
- memset(cmd, '\0', BUFSIZ); // clear cmd[]
- memset(args, '\0', BUFSIZ); // clear args[]
+ memset(cmd, '\0', MAX_LINELEN); // clear cmd[]
+ memset(args, '\0', MAX_LINELEN); // clear args[]
// look for optional address(es) :. :1 :1,9 :'q,'a :%
buf = get_address(buf, &b, &e);
// get any ARGuments
while (isblnk(*buf))
buf++;
- strcpy((char *) args, (char *) buf);
- buf1 = (Byte*)last_char_is((char *)cmd, '!');
+ strcpy(args, buf);
+ buf1 = last_char_is(cmd, '!');
if (buf1) {
useforce = TRUE;
*buf1 = '\0'; // get rid of !
li = e - b + 1;
}
// ------------ now look for the command ------------
- i = strlen((char *) cmd);
+ i = strlen(cmd);
if (i == 0) { // :123CR goto line #123
if (b >= 0) {
dot = find_line(b); // what line is #b
dot_skip_over_ws();
}
- } else if (strncmp((char *) cmd, "!", 1) == 0) { // run a cmd
+ }
+#if ENABLE_FEATURE_ALLOW_EXEC
+ else if (strncmp(cmd, "!", 1) == 0) { // run a cmd
// :!ls run the <cmd>
- (void) alarm(0); // wait for input- no alarms
+ alarm(0); // wait for input- no alarms
place_cursor(rows - 1, 0, FALSE); // go to Status line
clear_to_eol(); // clear the line
cookmode();
- system((char*)(orig_buf+1)); // run the cmd
+ system(orig_buf + 1); // run the cmd
rawmode();
Hit_Return(); // let user see results
- (void) alarm(3); // done waiting for input
- } else if (strncmp((char *) cmd, "=", i) == 0) { // where is the address
+ alarm(3); // done waiting for input
+ }
+#endif
+ else if (strncmp(cmd, "=", i) == 0) { // where is the address
if (b < 0) { // no addr given- use defaults
b = e = count_lines(text, dot);
}
psb("%d", b);
- } else if (strncasecmp((char *) cmd, "delete", i) == 0) { // delete lines
+ } else if (strncasecmp(cmd, "delete", i) == 0) { // delete lines
if (b < 0) { // no addr given- use defaults
q = begin_line(dot); // assume .,. for the range
r = end_line(dot);
}
dot = yank_delete(q, r, 1, YANKDEL); // save, then delete lines
dot_skip_over_ws();
- } else if (strncasecmp((char *) cmd, "edit", i) == 0) { // Edit a file
+ } else if (strncasecmp(cmd, "edit", i) == 0) { // Edit a file
int sr;
+ struct stat st_buf;
sr= 0;
// don't edit, if the current file has been modified
if (file_modified && ! useforce) {
psbs("No write since last change (:edit! overrides)");
goto vc1;
}
- if (strlen((char*)args) > 0) {
+ if (args[0]) {
// the user supplied a file name
- fn= args;
- } else if (cfn != 0 && strlen((char*)cfn) > 0) {
+ fn = args;
+ } else if (cfn && cfn[0]) {
// no user supplied name- use the current filename
- fn= cfn;
+ fn = cfn;
goto vc5;
} else {
// no user file name, no current name- punt
}
// see if file exists- if not, its just a new file request
- if ((sr=stat((char*)fn, &st_buf)) < 0) {
+ sr = stat(fn, &st_buf);
+ if (sr < 0) {
// This is just a request for a new file creation.
// The file_insert below will fail but we get
// an empty buffer with a file name. Then the "write"
// command can do the create.
} else {
- if ((st_buf.st_mode & (S_IFREG)) == 0) {
+ if ((st_buf.st_mode & S_IFREG) == 0) {
// This is not a regular file
psbs("\"%s\" is not a regular file", fn);
goto vc1;
// There is a read-able regular file
// make this the current file
- q = (Byte *) bb_xstrdup((char *) fn); // save the cfn
+ q = xstrdup(fn); // save the cfn
free(cfn); // free the old name
cfn = q; // remember new cfn
- vc5:
+ vc5:
// delete all the contents of text[]
new_text(2 * file_size(fn));
screenbegin = dot = end = text;
// insert new file
- ch = file_insert(fn, text, file_size(fn));
+ ch = file_insert(fn, text);
+ update_ro_status(fn);
if (ch < 1) {
// start empty buf with dummy line
- (void) char_insert(text, '\n');
- ch= 1;
+ char_insert(text, '\n');
+ ch = 1;
}
file_modified = 0;
last_file_modified = -1;
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
if (Ureg >= 0 && Ureg < 28 && reg[Ureg] != 0) {
free(reg[Ureg]); // free orig line reg- for 'U'
reg[Ureg]= 0;
for (li = 0; li < 28; li++) {
mark[li] = 0;
} // init the marks
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif
// how many lines in text[]?
li = count_lines(text, end - 1);
psb("\"%s\"%s"
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
"%s"
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#endif
" %dL, %dC", cfn,
(sr < 0 ? " [New file]" : ""),
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
((vi_readonly || readonly) ? " [Read only]" : ""),
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#endif
li, ch);
- } else if (strncasecmp((char *) cmd, "file", i) == 0) { // what File is this
+ } else if (strncasecmp(cmd, "file", i) == 0) { // what File is this
if (b != -1 || e != -1) {
- ni((Byte *) "No address allowed on this command");
+ ni("No address allowed on this command");
goto vc1;
}
- if (strlen((char *) args) > 0) {
+ if (args[0]) {
// user wants a new filename
free(cfn);
- cfn = (Byte *) bb_xstrdup((char *) args);
+ cfn = xstrdup(args);
} else {
// user wants file status info
last_status_cksum = 0; // force status update
}
- } else if (strncasecmp((char *) cmd, "features", i) == 0) { // what features are available
+ } else if (strncasecmp(cmd, "features", i) == 0) { // what features are available
// print out values of all features
place_cursor(rows - 1, 0, FALSE); // go to Status line, bottom of screen
clear_to_eol(); // clear the line
show_help();
rawmode();
Hit_Return();
- } else if (strncasecmp((char *) cmd, "list", i) == 0) { // literal print line
+ } else if (strncasecmp(cmd, "list", i) == 0) { // literal print line
if (b < 0) { // no addr given- use defaults
q = begin_line(dot); // assume .,. for the range
r = end_line(dot);
int c_is_no_print;
c = *q;
- c_is_no_print = c > 127 && !Isprint(c);
+ c_is_no_print = (c & 0x80) && !Isprint(c);
if (c_is_no_print) {
c = '.';
standout_start();
write1("$\r");
} else if (c < ' ' || c == 127) {
putchar('^');
- if(c == 127)
+ if (c == 127)
c = '?';
- else
- c += '@';
+ else
+ c += '@';
}
putchar(c);
if (c_is_no_print)
standout_end();
}
-#ifdef CONFIG_FEATURE_VI_SET
- vc2:
-#endif /* CONFIG_FEATURE_VI_SET */
+#if ENABLE_FEATURE_VI_SET
+ vc2:
+#endif
Hit_Return();
- } else if ((strncasecmp((char *) cmd, "quit", i) == 0) || // Quit
- (strncasecmp((char *) cmd, "next", i) == 0)) { // edit next file
+ } else if (strncasecmp(cmd, "quit", i) == 0 // Quit
+ || strncasecmp(cmd, "next", i) == 0 // edit next file
+ ) {
if (useforce) {
// force end of argv list
if (*cmd == 'q') {
goto vc1;
}
editing = 0;
- } else if (strncasecmp((char *) cmd, "read", i) == 0) { // read file into text[]
+ } else if (strncasecmp(cmd, "read", i) == 0) { // read file into text[]
fn = args;
- if (strlen((char *) fn) <= 0) {
+ if (!fn[0]) {
psbs("No filename given");
goto vc1;
}
// read after current line- unless user said ":0r foo"
if (b != 0)
q = next_line(q);
-#ifdef CONFIG_FEATURE_VI_READONLY
- l= readonly; // remember current files' status
-#endif
- ch = file_insert(fn, q, file_size(fn));
-#ifdef CONFIG_FEATURE_VI_READONLY
- readonly= l;
-#endif
+ ch = file_insert(fn, q);
if (ch < 0)
goto vc1; // nothing was inserted
// how many lines in text[]?
li = count_lines(q, q + ch - 1);
psb("\"%s\""
-#ifdef CONFIG_FEATURE_VI_READONLY
- "%s"
-#endif /* CONFIG_FEATURE_VI_READONLY */
+ USE_FEATURE_VI_READONLY("%s")
" %dL, %dC", fn,
-#ifdef CONFIG_FEATURE_VI_READONLY
- ((vi_readonly || readonly) ? " [Read only]" : ""),
-#endif /* CONFIG_FEATURE_VI_READONLY */
+ USE_FEATURE_VI_READONLY(((vi_readonly || readonly) ? " [Read only]" : ""),)
li, ch);
if (ch > 0) {
// if the insert is before "dot" then we need to update
dot += ch;
file_modified++;
}
- } else if (strncasecmp((char *) cmd, "rewind", i) == 0) { // rewind cmd line args
+ } else if (strncasecmp(cmd, "rewind", i) == 0) { // rewind cmd line args
if (file_modified && ! useforce) {
psbs("No write since last change (:rewind! overrides)");
} else {
optind = fn_start - 1;
editing = 0;
}
-#ifdef CONFIG_FEATURE_VI_SET
- } else if (strncasecmp((char *) cmd, "set", i) == 0) { // set or clear features
+#if ENABLE_FEATURE_VI_SET
+ } else if (strncasecmp(cmd, "set", i) == 0) { // set or clear features
+#if ENABLE_FEATURE_VI_SETOPTS
+ char *argp;
+#endif
i = 0; // offset into args
- if (strlen((char *) args) == 0) {
+ // only blank is regarded as args delmiter. What about tab '\t' ?
+ if (!args[0] || strcasecmp(args, "all") == 0) {
// print out values of all options
place_cursor(rows - 1, 0, FALSE); // go to Status line, bottom of screen
clear_to_eol(); // clear the line
printf("----------------------------------------\r\n");
-#ifdef CONFIG_FEATURE_VI_SETOPTS
+#if ENABLE_FEATURE_VI_SETOPTS
if (!autoindent)
printf("no");
printf("autoindent ");
printf("no");
printf("showmatch ");
printf("tabstop=%d ", tabstop);
-#endif /* CONFIG_FEATURE_VI_SETOPTS */
+#endif
printf("\r\n");
goto vc2;
}
- if (strncasecmp((char *) args, "no", 2) == 0)
- i = 2; // ":set noautoindent"
-#ifdef CONFIG_FEATURE_VI_SETOPTS
- setops(args, "autoindent ", i, "ai", VI_AUTOINDENT);
- setops(args, "flash ", i, "fl", VI_ERR_METHOD);
- setops(args, "ignorecase ", i, "ic", VI_IGNORECASE);
- setops(args, "showmatch ", i, "ic", VI_SHOWMATCH);
- if (strncasecmp((char *) args + i, "tabstop=%d ", 7) == 0) {
- sscanf(strchr((char *) args + i, '='), "=%d", &ch);
- if (ch > 0 && ch < columns - 1)
- tabstop = ch;
- }
-#endif /* CONFIG_FEATURE_VI_SETOPTS */
-#endif /* CONFIG_FEATURE_VI_SET */
-#ifdef CONFIG_FEATURE_VI_SEARCH
- } else if (strncasecmp((char *) cmd, "s", 1) == 0) { // substitute a pattern with a replacement pattern
- Byte *ls, *F, *R;
+#if ENABLE_FEATURE_VI_SETOPTS
+ argp = args;
+ while (*argp) {
+ if (strncasecmp(argp, "no", 2) == 0)
+ i = 2; // ":set noautoindent"
+ setops(argp, "autoindent ", i, "ai", VI_AUTOINDENT);
+ setops(argp, "flash ", i, "fl", VI_ERR_METHOD);
+ setops(argp, "ignorecase ", i, "ic", VI_IGNORECASE);
+ setops(argp, "showmatch ", i, "ic", VI_SHOWMATCH);
+ /* tabstopXXXX */
+ if (strncasecmp(argp + i, "tabstop=%d ", 7) == 0) {
+ sscanf(strchr(argp + i, '='), "tabstop=%d" + 7, &ch);
+ if (ch > 0 && ch < columns - 1)
+ tabstop = ch;
+ }
+ while (*argp && *argp != ' ')
+ argp++; // skip to arg delimiter (i.e. blank)
+ while (*argp && *argp == ' ')
+ argp++; // skip all delimiting blanks
+ }
+#endif /* FEATURE_VI_SETOPTS */
+#endif /* FEATURE_VI_SET */
+#if ENABLE_FEATURE_VI_SEARCH
+ } else if (strncasecmp(cmd, "s", 1) == 0) { // substitute a pattern with a replacement pattern
+ char *ls, *F, *R;
int gflag;
// F points to the "find" pattern
gflag = 0; // global replace flag
c = orig_buf[1]; // what is the delimiter
F = orig_buf + 2; // start of "find"
- R = (Byte *) strchr((char *) F, c); // middle delimiter
+ R = strchr(F, c); // middle delimiter
if (!R) goto colon_s_fail;
*R++ = '\0'; // terminate "find"
- buf1 = (Byte *) strchr((char *) R, c);
+ buf1 = strchr(R, c);
if (!buf1) goto colon_s_fail;
*buf1++ = '\0'; // terminate "replace"
if (*buf1 == 'g') { // :s/foo/bar/g
e = b; // maybe :.s/foo/bar/
for (i = b; i <= e; i++) { // so, :20,23 s \0 find \0 replace \0
ls = q; // orig line start
- vc4:
+ vc4:
buf1 = char_search(q, F, FORWARD, LIMITED); // search cur line only for "find"
- if (buf1 != NULL) {
- // we found the "find" pattern- delete it
- (void) text_hole_delete(buf1, buf1 + strlen((char *) F) - 1);
+ if (buf1) {
+ // we found the "find" pattern - delete it
+ text_hole_delete(buf1, buf1 + strlen(F) - 1);
// inset the "replace" patern
- (void) string_insert(buf1, R); // insert the string
+ string_insert(buf1, R); // insert the string
// check for "global" :s/foo/bar/g
if (gflag == 1) {
- if ((buf1 + strlen((char *) R)) < end_line(ls)) {
- q = buf1 + strlen((char *) R);
+ if ((buf1 + strlen(R)) < end_line(ls)) {
+ q = buf1 + strlen(R);
goto vc4; // don't let q move past cur line
}
}
}
q = next_line(ls);
}
-#endif /* CONFIG_FEATURE_VI_SEARCH */
- } else if (strncasecmp((char *) cmd, "version", i) == 0) { // show software version
- psb("%s", vi_Version);
- } else if (strncasecmp((char *) cmd, "write", i) == 0 // write text to file
- || strncasecmp((char *) cmd, "wq", i) == 0
- || strncasecmp((char *) cmd, "wn", i) == 0
- || strncasecmp((char *) cmd, "x", i) == 0) {
+#endif /* FEATURE_VI_SEARCH */
+ } else if (strncasecmp(cmd, "version", i) == 0) { // show software version
+ psb("%s", BB_VER " " BB_BT);
+ } else if (strncasecmp(cmd, "write", i) == 0 // write text to file
+ || strncasecmp(cmd, "wq", i) == 0
+ || strncasecmp(cmd, "wn", i) == 0
+ || strncasecmp(cmd, "x", i) == 0
+ ) {
// is there a file name to write to?
- if (strlen((char *) args) > 0) {
+ if (args[0]) {
fn = args;
}
-#ifdef CONFIG_FEATURE_VI_READONLY
- if ((vi_readonly || readonly) && ! useforce) {
+#if ENABLE_FEATURE_VI_READONLY
+ if ((vi_readonly || readonly) && !useforce) {
psbs("\"%s\" File is read only", fn);
goto vc3;
}
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#endif
// how many lines in text[]?
li = count_lines(q, r);
ch = r - q + 1;
editing = 0;
}
}
-#ifdef CONFIG_FEATURE_VI_READONLY
- vc3:;
-#endif /* CONFIG_FEATURE_VI_READONLY */
-#ifdef CONFIG_FEATURE_VI_YANKMARK
- } else if (strncasecmp((char *) cmd, "yank", i) == 0) { // yank lines
+#if ENABLE_FEATURE_VI_READONLY
+ vc3:;
+#endif
+#if ENABLE_FEATURE_VI_YANKMARK
+ } else if (strncasecmp(cmd, "yank", i) == 0) { // yank lines
if (b < 0) { // no addr given- use defaults
q = begin_line(dot); // assume .,. for the range
r = end_line(dot);
text_yank(q, r, YDreg);
li = count_lines(q, r);
psb("Yank %d lines (%d chars) into [%c]",
- li, strlen((char *) reg[YDreg]), what_reg());
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+ li, strlen(reg[YDreg]), what_reg());
+#endif
} else {
// cmd unknown
- ni((Byte *) cmd);
+ ni(cmd);
}
- vc1:
+ vc1:
dot = bound_dot(dot); // make sure "dot" is valid
return;
-#ifdef CONFIG_FEATURE_VI_SEARCH
-colon_s_fail:
+#if ENABLE_FEATURE_VI_SEARCH
+ colon_s_fail:
psb(":s expression missing delimiters");
#endif
}
-#endif /* CONFIG_FEATURE_VI_COLON */
+#endif /* FEATURE_VI_COLON */
static void Hit_Return(void)
{
}
//----- Synchronize the cursor to Dot --------------------------
-static void sync_cursor(Byte * d, int *row, int *col)
+static void sync_cursor(char * d, int *row, int *col)
{
- Byte *beg_cur, *end_cur; // begin and end of "d" line
- Byte *beg_scr, *end_scr; // begin and end of screen
- Byte *tp;
+ char *beg_cur; // begin and end of "d" line
+ char *end_scr; // begin and end of screen
+ char *tp;
int cnt, ro, co;
beg_cur = begin_line(d); // first char of cur line
- end_cur = end_line(d); // last char of cur line
- beg_scr = end_scr = screenbegin; // first char of screen
end_scr = end_screen(); // last char of screen
if (beg_cur < screenbegin) {
// "d" is before top line on screen
// how many lines do we have to move
cnt = count_lines(beg_cur, screenbegin);
- sc1:
+ sc1:
screenbegin = beg_cur;
if (cnt > (rows - 1) / 2) {
// we moved too many lines. put "dot" in middle of screen
}
//----- Text Movement Routines ---------------------------------
-static Byte *begin_line(Byte * p) // return pointer to first char cur line
+static char *begin_line(char * p) // return pointer to first char cur line
{
while (p > text && p[-1] != '\n')
p--; // go to cur line B-o-l
- return (p);
+ return p;
}
-static Byte *end_line(Byte * p) // return pointer to NL of cur line line
+static char *end_line(char * p) // return pointer to NL of cur line line
{
while (p < end - 1 && *p != '\n')
p++; // go to cur line E-o-l
- return (p);
+ return p;
}
-static inline Byte *dollar_line(Byte * p) // return pointer to just before NL line
+static inline char *dollar_line(char * p) // return pointer to just before NL line
{
while (p < end - 1 && *p != '\n')
p++; // go to cur line E-o-l
// Try to stay off of the Newline
if (*p == '\n' && (p - begin_line(p)) > 0)
p--;
- return (p);
+ return p;
}
-static Byte *prev_line(Byte * p) // return pointer first char prev line
+static char *prev_line(char * p) // return pointer first char prev line
{
p = begin_line(p); // goto begining of cur line
if (p[-1] == '\n' && p > text)
p--; // step to prev line
p = begin_line(p); // goto begining of prev line
- return (p);
+ return p;
}
-static Byte *next_line(Byte * p) // return pointer first char next line
+static char *next_line(char * p) // return pointer first char next line
{
p = end_line(p);
if (*p == '\n' && p < end - 1)
p++; // step to next line
- return (p);
+ return p;
}
//----- Text Information Routines ------------------------------
-static Byte *end_screen(void)
+static char *end_screen(void)
{
- Byte *q;
+ char *q;
int cnt;
// find new bottom line
for (cnt = 0; cnt < rows - 2; cnt++)
q = next_line(q);
q = end_line(q);
- return (q);
+ return q;
}
-static int count_lines(Byte * start, Byte * stop) // count line from start to stop
+static int count_lines(char * start, char * stop) // count line from start to stop
{
- Byte *q;
+ char *q;
int cnt;
if (stop < start) { // start and stop are backwards- reverse them
if (*q == '\n')
cnt++;
}
- return (cnt);
+ return cnt;
}
-static Byte *find_line(int li) // find begining of line #li
+static char *find_line(int li) // find begining of line #li
{
- Byte *q;
+ char *q;
for (q = text; li > 1; li--) {
q = next_line(q);
}
- return (q);
+ return q;
}
//----- Dot Movement Routines ----------------------------------
dot = end_line(dot); // return pointer to last char cur line
}
-static Byte *move_to_col(Byte * p, int l)
+static char *move_to_col(char * p, int l)
{
int co;
co++; // display as ^X, use 2 columns
}
} while (++co <= l && p++ < end);
- return (p);
+ return p;
}
static void dot_next(void)
static void dot_scroll(int cnt, int dir)
{
- Byte *q;
+ char *q;
for (; cnt > 0; cnt--) {
if (dir < 0) {
static void dot_delete(void) // delete the char at 'dot'
{
- (void) text_hole_delete(dot, dot);
+ text_hole_delete(dot, dot);
}
-static Byte *bound_dot(Byte * p) // make sure text[0] <= P < "end"
+static char *bound_dot(char * p) // make sure text[0] <= P < "end"
{
if (p >= end && end > text) {
p = end - 1;
p = text;
indicate_error('2');
}
- return (p);
+ return p;
}
//----- Helper Utility Routines --------------------------------
* DO NOT COUNT NEWLINE AS WHITESPACE
*/
-static Byte *new_screen(int ro, int co)
+static char *new_screen(int ro, int co)
{
int li;
free(screen);
screensize = ro * co + 8;
- screen = (Byte *) xmalloc(screensize);
+ screen = xmalloc(screensize);
// initialize the new screen. assume this will be a empty file.
screen_erase();
// non-existent text[] lines start with a tilde (~).
for (li = 1; li < ro - 1; li++) {
screen[(li * co) + 0] = '~';
}
- return (screen);
+ return screen;
}
-static Byte *new_text(int size)
+static char *new_text(int size)
{
if (size < 10240)
size = 10240; // have a minimum size for new files
free(text);
- text = (Byte *) xmalloc(size + 8);
+ text = xmalloc(size + 8);
memset(text, '\0', size); // clear new text[]
//text += 4; // leave some room for "oops"
- textend = text + size - 1;
- //textend -= 4; // leave some root for "oops"
- return (text);
+ return text;
}
-#ifdef CONFIG_FEATURE_VI_SEARCH
-static int mycmp(Byte * s1, Byte * s2, int len)
+#if ENABLE_FEATURE_VI_SEARCH
+static int mycmp(const char * s1, const char * s2, int len)
{
int i;
- i = strncmp((char *) s1, (char *) s2, len);
-#ifdef CONFIG_FEATURE_VI_SETOPTS
+ i = strncmp(s1, s2, len);
+#if ENABLE_FEATURE_VI_SETOPTS
if (ignorecase) {
- i = strncasecmp((char *) s1, (char *) s2, len);
+ i = strncasecmp(s1, s2, len);
}
-#endif /* CONFIG_FEATURE_VI_SETOPTS */
- return (i);
+#endif
+ return i;
}
-static Byte *char_search(Byte * p, Byte * pat, int dir, int range) // search for pattern starting at p
+// search for pattern starting at p
+static char *char_search(char * p, const char * pat, int dir, int range)
{
#ifndef REGEX_SEARCH
- Byte *start, *stop;
+ char *start, *stop;
int len;
- len = strlen((char *) pat);
+ len = strlen(pat);
if (dir == FORWARD) {
stop = end - 1; // assume range is p - end-1
if (range == LIMITED)
stop = next_line(p); // range is to next line
for (start = p; start < stop; start++) {
if (mycmp(start, pat, len) == 0) {
- return (start);
+ return start;
}
}
} else if (dir == BACK) {
stop = prev_line(p); // range is to prev line
for (start = p - len; start >= stop; start--) {
if (mycmp(start, pat, len) == 0) {
- return (start);
+ return start;
}
}
}
// pattern not found
- return (NULL);
-#else /*REGEX_SEARCH */
+ return NULL;
+#else /* REGEX_SEARCH */
char *q;
struct re_pattern_buffer preg;
int i;
// RANGE could be negative if we are searching backwards
range = q - p;
- q = (char *) re_compile_pattern(pat, strlen((char *) pat), &preg);
+ q = re_compile_pattern(pat, strlen(pat), &preg);
if (q != 0) {
// The pattern was not compiled
psbs("bad search pattern: \"%s\": %s", pat, q);
p = 0;
i = 0; // return NULL if pattern not found
}
- cs1:
+ cs1:
if (dir == FORWARD) {
p = p + i;
} else {
p = p - i;
}
- return (p);
-#endif /*REGEX_SEARCH */
+ return p;
+#endif /* REGEX_SEARCH */
}
-#endif /* CONFIG_FEATURE_VI_SEARCH */
+#endif /* FEATURE_VI_SEARCH */
-static Byte *char_insert(Byte * p, Byte c) // insert the char c at 'p'
+static char *char_insert(char * p, char c) // insert the char c at 'p'
{
if (c == 22) { // Is this an ctrl-V?
p = stupid_insert(p, '^'); // use ^ to indicate literal next
cmdcnt = 0;
end_cmd_q(); // stop adding to q
last_status_cksum = 0; // force status update
- if ((p[-1] != '\n') && (dot>text)) {
+ if ((p[-1] != '\n') && (dot > text)) {
p--;
}
} else if (c == erase_char || c == 8 || c == 127) { // Is this a BS
}
} else {
// insert a char into text[]
- Byte *sp; // "save p"
+ char *sp; // "save p"
if (c == 13)
c = '\n'; // translate \r to \n
sp = p; // remember addr of insert
p = stupid_insert(p, c); // insert the char
-#ifdef CONFIG_FEATURE_VI_SETOPTS
+#if ENABLE_FEATURE_VI_SETOPTS
if (showmatch && strchr(")]}", *sp) != NULL) {
showmatching(sp);
}
if (autoindent && c == '\n') { // auto indent the new line
- Byte *q;
+ char *q;
q = prev_line(p); // use prev line as templet
for (; isblnk(*q); q++) {
p = stupid_insert(p, *q); // insert the char
}
}
-#endif /* CONFIG_FEATURE_VI_SETOPTS */
+#endif
}
- return (p);
+ return p;
}
-static Byte *stupid_insert(Byte * p, Byte c) // stupidly insert the char c at 'p'
+static char *stupid_insert(char * p, char c) // stupidly insert the char c at 'p'
{
p = text_hole_make(p, 1);
if (p != 0) {
file_modified++; // has the file been modified
p++;
}
- return (p);
+ return p;
}
-static Byte find_range(Byte ** start, Byte ** stop, Byte c)
+static char find_range(char ** start, char ** stop, char c)
{
- Byte *save_dot, *p, *q;
+ char *save_dot, *p, *q;
int cnt;
save_dot = dot;
*stop = p;
}
dot = save_dot;
- return (c);
+ return c;
}
-static int st_test(Byte * p, int type, int dir, Byte * tested)
+static int st_test(char * p, int type, int dir, char * tested)
{
- Byte c, c0, ci;
+ char c, c0, ci;
int test, inc;
inc = dir;
test = ((isalnum(c)) || c == '_');
}
*tested = c;
- return (test);
+ return test;
}
-static Byte *skip_thing(Byte * p, int linecnt, int dir, int type)
+static char *skip_thing(char * p, int linecnt, int dir, int type)
{
- Byte c;
+ char c;
while (st_test(p, type, dir, &c)) {
// make sure we limit search to correct number of lines
break;
p += dir; // move to next char
}
- return (p);
+ return p;
}
// find matching char of pair () [] {}
-static Byte *find_pair(Byte * p, Byte c)
+static char *find_pair(char * p, char c)
{
- Byte match, *q;
+ char match, *q;
int dir, level;
match = ')';
}
if (level != 0)
q = NULL; // indicate no match
- return (q);
+ return q;
}
-#ifdef CONFIG_FEATURE_VI_SETOPTS
+#if ENABLE_FEATURE_VI_SETOPTS
// show the matching char of a pair, () [] {}
-static void showmatching(Byte * p)
+static void showmatching(char * p)
{
- Byte *q, *save_dot;
+ char *q, *save_dot;
// we found half of a pair
q = find_pair(p, *p); // get loc of matching char
save_dot = dot; // remember where we are
dot = q; // go to new loc
refresh(FALSE); // let the user see it
- (void) mysleep(40); // give user some time
+ mysleep(40); // give user some time
dot = save_dot; // go back to old loc
refresh(FALSE);
}
}
-#endif /* CONFIG_FEATURE_VI_SETOPTS */
+#endif /* FEATURE_VI_SETOPTS */
// open a hole in text[]
-static Byte *text_hole_make(Byte * p, int size) // at "p", make a 'size' byte hole
+static char *text_hole_make(char * p, int size) // at "p", make a 'size' byte hole
{
- Byte *src, *dest;
+ char *src, *dest;
int cnt;
if (size <= 0)
memset(p, ' ', size); // clear new hole
end = end + size; // adjust the new END
file_modified++; // has the file been modified
- thm0:
- return (p);
+ thm0:
+ return p;
}
// close a hole in text[]
-static Byte *text_hole_delete(Byte * p, Byte * q) // delete "p" thru "q", inclusive
+static char *text_hole_delete(char * p, char * q) // delete "p" thru "q", inclusive
{
- Byte *src, *dest;
+ char *src, *dest;
int cnt, hole_size;
// move forwards, from beginning
if (memmove(dest, src, cnt) != dest) {
psbs("can't delete the character");
}
- thd_atend:
+ thd_atend:
end = end - hole_size; // adjust the new END
if (dest >= end)
dest = end - 1; // make sure dest in below end-1
if (end <= text)
dest = end = text; // keep pointers valid
file_modified++; // has the file been modified
- thd0:
- return (dest);
+ thd0:
+ return dest;
}
// copy text into register, then delete text.
// if dist <= 0, do not include, or go past, a NewLine
//
-static Byte *yank_delete(Byte * start, Byte * stop, int dist, int yf)
+static char *yank_delete(char * start, char * stop, int dist, int yf)
{
- Byte *p;
+ char *p;
// make sure start <= stop
if (start > stop) {
stop = p;
}
if (dist <= 0) {
- // we can not cross NL boundaries
+ // we cannot cross NL boundaries
p = start;
if (*p == '\n')
- return (p);
+ return p;
// dont go past a NewLine
for (; p + 1 <= stop; p++) {
if (p[1] == '\n') {
}
}
p = start;
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
text_yank(start, stop, YDreg);
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif
if (yf == YANKDEL) {
p = text_hole_delete(start, stop);
} // delete lines
- return (p);
+ return p;
}
static void show_help(void)
{
puts("These features are available:"
-#ifdef CONFIG_FEATURE_VI_SEARCH
+#if ENABLE_FEATURE_VI_SEARCH
"\n\tPattern searches with / and ?"
-#endif /* CONFIG_FEATURE_VI_SEARCH */
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
+#endif
+#if ENABLE_FEATURE_VI_DOT_CMD
"\n\tLast command repeat with \'.\'"
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#endif
+#if ENABLE_FEATURE_VI_YANKMARK
"\n\tLine marking with 'x"
"\n\tNamed buffers with \"x"
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
-#ifdef CONFIG_FEATURE_VI_READONLY
+#endif
+#if ENABLE_FEATURE_VI_READONLY
"\n\tReadonly if vi is called as \"view\""
"\n\tReadonly with -R command line arg"
-#endif /* CONFIG_FEATURE_VI_READONLY */
-#ifdef CONFIG_FEATURE_VI_SET
+#endif
+#if ENABLE_FEATURE_VI_SET
"\n\tSome colon mode commands with \':\'"
-#endif /* CONFIG_FEATURE_VI_SET */
-#ifdef CONFIG_FEATURE_VI_SETOPTS
+#endif
+#if ENABLE_FEATURE_VI_SETOPTS
"\n\tSettable options with \":set\""
-#endif /* CONFIG_FEATURE_VI_SETOPTS */
-#ifdef CONFIG_FEATURE_VI_USE_SIGNALS
+#endif
+#if ENABLE_FEATURE_VI_USE_SIGNALS
"\n\tSignal catching- ^C"
"\n\tJob suspend and resume with ^Z"
-#endif /* CONFIG_FEATURE_VI_USE_SIGNALS */
-#ifdef CONFIG_FEATURE_VI_WIN_RESIZE
+#endif
+#if ENABLE_FEATURE_VI_WIN_RESIZE
"\n\tAdapt to window re-sizes"
-#endif /* CONFIG_FEATURE_VI_WIN_RESIZE */
+#endif
);
}
-static inline void print_literal(Byte * buf, Byte * s) // copy s to buf, convert unprintable
+static inline void print_literal(char * buf, const char * s) // copy s to buf, convert unprintable
{
- Byte c, b[2];
+ unsigned char c;
+ char b[2];
b[1] = '\0';
- strcpy((char *) buf, ""); // init buf
- if (strlen((char *) s) <= 0)
- s = (Byte *) "(NULL)";
- for (; *s > '\0'; s++) {
+ buf[0] = '\0';
+ if (!s[0])
+ s = "(NULL)";
+ for (; *s; s++) {
int c_is_no_print;
c = *s;
- c_is_no_print = c > 127 && !Isprint(c);
+ c_is_no_print = (c & 0x80) && !Isprint(c);
if (c_is_no_print) {
- strcat((char *) buf, SOn);
+ strcat(buf, SOn);
c = '.';
}
if (c < ' ' || c == 127) {
- strcat((char *) buf, "^");
- if(c == 127)
+ strcat(buf, "^");
+ if (c == 127)
c = '?';
- else
- c += '@';
+ else
+ c += '@';
}
b[0] = c;
- strcat((char *) buf, (char *) b);
+ strcat(buf, b);
if (c_is_no_print)
- strcat((char *) buf, SOs);
- if (*s == '\n') {
- strcat((char *) buf, "$");
- }
+ strcat(buf, SOs);
+ if (*s == '\n')
+ strcat(buf, "$");
}
}
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
-static void start_new_cmd_q(Byte c)
+#if ENABLE_FEATURE_VI_DOT_CMD
+static void start_new_cmd_q(char c)
{
// release old cmd
free(last_modifying_cmd);
// get buffer for new cmd
- last_modifying_cmd = (Byte *) xmalloc(BUFSIZ);
- memset(last_modifying_cmd, '\0', BUFSIZ); // clear new cmd queue
+ last_modifying_cmd = xzalloc(MAX_LINELEN);
// if there is a current cmd count put it in the buffer first
if (cmdcnt > 0)
- sprintf((char *) last_modifying_cmd, "%d%c", cmdcnt, c);
+ sprintf(last_modifying_cmd, "%d%c", cmdcnt, c);
else // just save char c onto queue
last_modifying_cmd[0] = c;
adding2q = 1;
static void end_cmd_q(void)
{
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
YDreg = 26; // go back to default Yank/Delete reg
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif
adding2q = 0;
- return;
}
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
+#endif /* FEATURE_VI_DOT_CMD */
-#if defined(CONFIG_FEATURE_VI_YANKMARK) || defined(CONFIG_FEATURE_VI_SEARCH) || defined(CONFIG_FEATURE_VI_CRASHME)
-static Byte *string_insert(Byte * p, Byte * s) // insert the string at 'p'
+#if ENABLE_FEATURE_VI_YANKMARK \
+ || (ENABLE_FEATURE_VI_COLON && ENABLE_FEATURE_VI_SEARCH) \
+ || ENABLE_FEATURE_VI_CRASHME
+static char *string_insert(char * p, char * s) // insert the string at 'p'
{
int cnt, i;
- i = strlen((char *) s);
+ i = strlen(s);
p = text_hole_make(p, i);
- strncpy((char *) p, (char *) s, i);
+ strncpy(p, s, i);
for (cnt = 0; *s != '\0'; s++) {
if (*s == '\n')
cnt++;
}
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
psb("Put %d lines (%d chars) from [%c]", cnt, i, what_reg());
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
- return (p);
+#endif
+ return p;
}
-#endif /* CONFIG_FEATURE_VI_YANKMARK || CONFIG_FEATURE_VI_COLON || CONFIG_FEATURE_VI_CRASHME */
+#endif
-#ifdef CONFIG_FEATURE_VI_YANKMARK
-static Byte *text_yank(Byte * p, Byte * q, int dest) // copy text into a register
+#if ENABLE_FEATURE_VI_YANKMARK
+static char *text_yank(char * p, char * q, int dest) // copy text into a register
{
- Byte *t;
+ char *t;
int cnt;
if (q < p) { // they are backwards- reverse them
cnt = q - p + 1;
t = reg[dest];
free(t); // if already a yank register, free it
- t = (Byte *) xmalloc(cnt + 1); // get a new register
+ t = xmalloc(cnt + 1); // get a new register
memset(t, '\0', cnt + 1); // clear new text[]
- strncpy((char *) t, (char *) p, cnt); // copy text[] into bufer
+ strncpy(t, p, cnt); // copy text[] into bufer
reg[dest] = t;
- return (p);
+ return p;
}
-static Byte what_reg(void)
+static char what_reg(void)
{
- Byte c;
- int i;
+ char c;
- i = 0;
c = 'D'; // default to D-reg
if (0 <= YDreg && YDreg <= 25)
- c = 'a' + (Byte) YDreg;
+ c = 'a' + (char) YDreg;
if (YDreg == 26)
c = 'D';
if (YDreg == 27)
c = 'U';
- return (c);
+ return c;
}
-static void check_context(Byte cmd)
+static void check_context(char cmd)
{
// A context is defined to be "modifying text"
// Any modifying command establishes a new context.
if (dot < context_start || dot > context_end) {
- if (strchr((char *) modifying_cmds, cmd) != NULL) {
+ if (strchr(modifying_cmds, cmd) != NULL) {
// we are trying to modify text[]- make this the current context
mark[27] = mark[26]; // move cur to prev
mark[26] = dot; // move local to cur
//loiter= start_loiter= now;
}
}
- return;
}
-static inline Byte *swap_context(Byte * p) // goto new context for '' command make this the current context
+static inline char *swap_context(char * p) // goto new context for '' command make this the current context
{
- Byte *tmp;
+ char *tmp;
// the current context is in mark[26]
// the previous context is in mark[27]
context_start = prev_line(prev_line(prev_line(p)));
context_end = next_line(next_line(next_line(p)));
}
- return (p);
+ return p;
}
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif /* FEATURE_VI_YANKMARK */
-static int isblnk(Byte c) // is the char a blank or tab
+static int isblnk(char c) // is the char a blank or tab
{
return (c == ' ' || c == '\t');
}
}
//----- Come here when we get a window resize signal ---------
-#ifdef CONFIG_FEATURE_VI_USE_SIGNALS
+#if ENABLE_FEATURE_VI_USE_SIGNALS
static void winch_sig(int sig ATTRIBUTE_UNUSED)
{
signal(SIGWINCH, winch_sig);
-#ifdef CONFIG_FEATURE_VI_WIN_RESIZE
- window_size_get(0);
-#endif /* CONFIG_FEATURE_VI_WIN_RESIZE */
+ if (ENABLE_FEATURE_VI_WIN_RESIZE)
+ get_terminal_width_height(0, &columns, &rows);
new_screen(rows, columns); // get memory for virtual screen
redraw(TRUE); // re-draw the screen
}
//----- Come here when we get a signal ---------------------------
static void catch_sig(int sig)
{
- signal(SIGHUP, catch_sig);
signal(SIGINT, catch_sig);
- signal(SIGTERM, catch_sig);
- signal(SIGALRM, catch_sig);
- if(sig)
+ if (sig)
longjmp(restart, sig);
}
-
-//----- Come here when we get a core dump signal -----------------
-static void core_sig(int sig)
-{
- signal(SIGQUIT, core_sig);
- signal(SIGILL, core_sig);
- signal(SIGTRAP, core_sig);
- signal(SIGABRT, core_sig);
- signal(SIGFPE, core_sig);
- signal(SIGBUS, core_sig);
- signal(SIGSEGV, core_sig);
-#ifdef SIGSYS
- signal(SIGSYS, core_sig);
-#endif
-
- if(sig) { // signaled
- dot = bound_dot(dot); // make sure "dot" is valid
- longjmp(restart, sig);
- }
-}
-#endif /* CONFIG_FEATURE_VI_USE_SIGNALS */
+#endif /* FEATURE_VI_USE_SIGNALS */
static int mysleep(int hund) // sleep for 'h' 1/100 seconds
{
+ fd_set rfds;
+ struct timeval tv;
+
// Don't hang- Wait 5/100 seconds- 1 Sec= 1000000
fflush(stdout);
FD_ZERO(&rfds);
tv.tv_sec = 0;
tv.tv_usec = hund * 10000;
select(1, &rfds, NULL, NULL, &tv);
- return (FD_ISSET(0, &rfds));
+ return FD_ISSET(0, &rfds);
}
#define readbuffer bb_common_bufsiz1
static int readed_for_parse;
//----- IO Routines --------------------------------------------
-static Byte readit(void) // read (maybe cursor) key from stdin
+static char readit(void) // read (maybe cursor) key from stdin
{
- Byte c;
+ char c;
int n;
struct esc_cmds {
const char *seq;
- Byte val;
+ char val;
};
static const struct esc_cmds esccmds[] = {
- {"OA", (Byte) VI_K_UP}, // cursor key Up
- {"OB", (Byte) VI_K_DOWN}, // cursor key Down
- {"OC", (Byte) VI_K_RIGHT}, // Cursor Key Right
- {"OD", (Byte) VI_K_LEFT}, // cursor key Left
- {"OH", (Byte) VI_K_HOME}, // Cursor Key Home
- {"OF", (Byte) VI_K_END}, // Cursor Key End
- {"[A", (Byte) VI_K_UP}, // cursor key Up
- {"[B", (Byte) VI_K_DOWN}, // cursor key Down
- {"[C", (Byte) VI_K_RIGHT}, // Cursor Key Right
- {"[D", (Byte) VI_K_LEFT}, // cursor key Left
- {"[H", (Byte) VI_K_HOME}, // Cursor Key Home
- {"[F", (Byte) VI_K_END}, // Cursor Key End
- {"[1~", (Byte) VI_K_HOME}, // Cursor Key Home
- {"[2~", (Byte) VI_K_INSERT}, // Cursor Key Insert
- {"[4~", (Byte) VI_K_END}, // Cursor Key End
- {"[5~", (Byte) VI_K_PAGEUP}, // Cursor Key Page Up
- {"[6~", (Byte) VI_K_PAGEDOWN}, // Cursor Key Page Down
- {"OP", (Byte) VI_K_FUN1}, // Function Key F1
- {"OQ", (Byte) VI_K_FUN2}, // Function Key F2
- {"OR", (Byte) VI_K_FUN3}, // Function Key F3
- {"OS", (Byte) VI_K_FUN4}, // Function Key F4
- {"[15~", (Byte) VI_K_FUN5}, // Function Key F5
- {"[17~", (Byte) VI_K_FUN6}, // Function Key F6
- {"[18~", (Byte) VI_K_FUN7}, // Function Key F7
- {"[19~", (Byte) VI_K_FUN8}, // Function Key F8
- {"[20~", (Byte) VI_K_FUN9}, // Function Key F9
- {"[21~", (Byte) VI_K_FUN10}, // Function Key F10
- {"[23~", (Byte) VI_K_FUN11}, // Function Key F11
- {"[24~", (Byte) VI_K_FUN12}, // Function Key F12
- {"[11~", (Byte) VI_K_FUN1}, // Function Key F1
- {"[12~", (Byte) VI_K_FUN2}, // Function Key F2
- {"[13~", (Byte) VI_K_FUN3}, // Function Key F3
- {"[14~", (Byte) VI_K_FUN4}, // Function Key F4
+ {"OA", VI_K_UP}, // cursor key Up
+ {"OB", VI_K_DOWN}, // cursor key Down
+ {"OC", VI_K_RIGHT}, // Cursor Key Right
+ {"OD", VI_K_LEFT}, // cursor key Left
+ {"OH", VI_K_HOME}, // Cursor Key Home
+ {"OF", VI_K_END}, // Cursor Key End
+ {"[A", VI_K_UP}, // cursor key Up
+ {"[B", VI_K_DOWN}, // cursor key Down
+ {"[C", VI_K_RIGHT}, // Cursor Key Right
+ {"[D", VI_K_LEFT}, // cursor key Left
+ {"[H", VI_K_HOME}, // Cursor Key Home
+ {"[F", VI_K_END}, // Cursor Key End
+ {"[1~", VI_K_HOME}, // Cursor Key Home
+ {"[2~", VI_K_INSERT}, // Cursor Key Insert
+ {"[4~", VI_K_END}, // Cursor Key End
+ {"[5~", VI_K_PAGEUP}, // Cursor Key Page Up
+ {"[6~", VI_K_PAGEDOWN},// Cursor Key Page Down
+ {"OP", VI_K_FUN1}, // Function Key F1
+ {"OQ", VI_K_FUN2}, // Function Key F2
+ {"OR", VI_K_FUN3}, // Function Key F3
+ {"OS", VI_K_FUN4}, // Function Key F4
+ {"[15~", VI_K_FUN5}, // Function Key F5
+ {"[17~", VI_K_FUN6}, // Function Key F6
+ {"[18~", VI_K_FUN7}, // Function Key F7
+ {"[19~", VI_K_FUN8}, // Function Key F8
+ {"[20~", VI_K_FUN9}, // Function Key F9
+ {"[21~", VI_K_FUN10}, // Function Key F10
+ {"[23~", VI_K_FUN11}, // Function Key F11
+ {"[24~", VI_K_FUN12}, // Function Key F12
+ {"[11~", VI_K_FUN1}, // Function Key F1
+ {"[12~", VI_K_FUN2}, // Function Key F2
+ {"[13~", VI_K_FUN3}, // Function Key F3
+ {"[14~", VI_K_FUN4}, // Function Key F4
};
+ enum { ESCCMDS_COUNT = ARRAY_SIZE(esccmds) };
-#define ESCCMDS_COUNT (sizeof(esccmds)/sizeof(struct esc_cmds))
-
- (void) alarm(0); // turn alarm OFF while we wait for input
+ alarm(0); // turn alarm OFF while we wait for input
fflush(stdout);
n = readed_for_parse;
// get input from User- are there already input chars in Q?
if (n <= 0) {
- ri0:
+ ri0:
// the Q is empty, wait for a typed char
- n = read(0, readbuffer, BUFSIZ - 1);
+ n = read(0, readbuffer, MAX_LINELEN - 1);
if (n < 0) {
if (errno == EINTR)
goto ri0; // interrupted sys call
editing = 0;
errno = 0;
}
- if(n <= 0)
+ if (n <= 0)
return 0; // error
if (readbuffer[0] == 27) {
- // This is an ESC char. Is this Esc sequence?
- // Could be bare Esc key. See if there are any
- // more chars to read after the ESC. This would
- // be a Function or Cursor Key sequence.
- FD_ZERO(&rfds);
- FD_SET(0, &rfds);
- tv.tv_sec = 0;
- tv.tv_usec = 50000; // Wait 5/100 seconds- 1 Sec=1000000
-
- // keep reading while there are input chars and room in buffer
- while (select(1, &rfds, NULL, NULL, &tv) > 0 && n <= (BUFSIZ - 5)) {
- // read the rest of the ESC string
- int r = read(0, (void *) (readbuffer + n), BUFSIZ - n);
+ fd_set rfds;
+ struct timeval tv;
+
+ // This is an ESC char. Is this Esc sequence?
+ // Could be bare Esc key. See if there are any
+ // more chars to read after the ESC. This would
+ // be a Function or Cursor Key sequence.
+ FD_ZERO(&rfds);
+ FD_SET(0, &rfds);
+ tv.tv_sec = 0;
+ tv.tv_usec = 50000; // Wait 5/100 seconds- 1 Sec=1000000
+
+ // keep reading while there are input chars and room in buffer
+ while (select(1, &rfds, NULL, NULL, &tv) > 0 && n <= (MAX_LINELEN - 5)) {
+ // read the rest of the ESC string
+ int r = read(0, (void *) (readbuffer + n), MAX_LINELEN - n);
if (r > 0) {
n += r;
}
readed_for_parse = n;
}
c = readbuffer[0];
- if(c == 27 && n > 1) {
- // Maybe cursor or function key?
+ if (c == 27 && n > 1) {
+ // Maybe cursor or function key?
const struct esc_cmds *eindex;
for (eindex = esccmds; eindex < &esccmds[ESCCMDS_COUNT]; eindex++) {
int cnt = strlen(eindex->seq);
- if(n <= cnt)
+ if (n <= cnt)
continue;
- if(strncmp(eindex->seq, (char *) readbuffer + 1, cnt))
+ if (strncmp(eindex->seq, readbuffer + 1, cnt))
continue;
// is a Cursor key- put derived value back into Q
c = eindex->val;
n = cnt + 1;
break;
}
- if(eindex == &esccmds[ESCCMDS_COUNT]) {
+ if (eindex == &esccmds[ESCCMDS_COUNT]) {
/* defined ESC sequence not found, set only one ESC */
n = 1;
}
}
// remove key sequence from Q
readed_for_parse -= n;
- memmove(readbuffer, readbuffer + n, BUFSIZ - n);
- (void) alarm(3); // we are done waiting for input, turn alarm ON
- return (c);
+ memmove(readbuffer, readbuffer + n, MAX_LINELEN - n);
+ alarm(3); // we are done waiting for input, turn alarm ON
+ return c;
}
//----- IO Routines --------------------------------------------
-static Byte get_one_char(void)
+static char get_one_char(void)
{
- static Byte c;
+ static char c;
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
+#if ENABLE_FEATURE_VI_DOT_CMD
// ! adding2q && ioq == 0 read()
// ! adding2q && ioq != 0 *ioq
// adding2q *last_modifying_cmd= read()
// adding STDIN chars to q
c = readit(); // get the users input
if (last_modifying_cmd != 0) {
- int len = strlen((char *) last_modifying_cmd);
- if (len + 1 >= BUFSIZ) {
+ int len = strlen(last_modifying_cmd);
+ if (len >= MAX_LINELEN - 1) {
psbs("last_modifying_cmd overrun");
} else {
// add new char to q
}
}
}
-#else /* CONFIG_FEATURE_VI_DOT_CMD */
+#else
c = readit(); // get the users input
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
- return (c); // return the char, where ever it came from
+#endif /* FEATURE_VI_DOT_CMD */
+ return c; // return the char, where ever it came from
}
-static Byte *get_input_line(Byte * prompt) // get input line- use "status line"
+static char *get_input_line(const char * prompt) // get input line- use "status line"
{
- Byte buf[BUFSIZ];
- Byte c;
+ static char *obufp;
+
+ char buf[MAX_LINELEN];
+ char c;
int i;
- static Byte *obufp = NULL;
- strcpy((char *) buf, (char *) prompt);
+ strcpy(buf, prompt);
last_status_cksum = 0; // force status update
place_cursor(rows - 1, 0, FALSE); // go to Status line, bottom of screen
clear_to_eol(); // clear the line
- write1((char *) prompt); // write out the :, /, or ? prompt
+ write1(prompt); // write out the :, /, or ? prompt
- for (i = strlen((char *) buf); i < BUFSIZ;) {
+ i = strlen(buf);
+ while (i < MAX_LINELEN) {
c = get_one_char(); // read user input
if (c == '\n' || c == '\r' || c == 27)
break; // is this end of input
}
refresh(FALSE);
free(obufp);
- obufp = (Byte *) bb_xstrdup((char *) buf);
- return (obufp);
+ obufp = xstrdup(buf);
+ return obufp;
}
-static int file_size(const Byte * fn) // what is the byte size of "fn"
+static int file_size(const char * fn) // what is the byte size of "fn"
{
struct stat st_buf;
- int cnt, sr;
+ int cnt;
- if (fn == 0 || strlen((char *)fn) <= 0)
- return (-1);
cnt = -1;
- sr = stat((char *) fn, &st_buf); // see if file exists
- if (sr >= 0) {
+ if (fn && fn[0] && stat(fn, &st_buf) == 0) // see if file exists
cnt = (int) st_buf.st_size;
- }
- return (cnt);
+ return cnt;
}
-static int file_insert(Byte * fn, Byte * p, int size)
+static int file_insert(char *fn, char *p)
{
- int fd, cnt;
-
- cnt = -1;
-#ifdef CONFIG_FEATURE_VI_READONLY
- readonly = FALSE;
-#endif /* CONFIG_FEATURE_VI_READONLY */
- if (fn == 0 || strlen((char*) fn) <= 0) {
- psbs("No filename given");
- goto fi0;
- }
- if (size == 0) {
- // OK- this is just a no-op
- cnt = 0;
- goto fi0;
- }
+ int cnt = -1;
+ int fd, size;
+
+ size = file_size(fn);
if (size < 0) {
- psbs("Trying to insert a negative number (%d) of characters", size);
+ psbs("File does not exist");
goto fi0;
}
if (p < text || p > end) {
goto fi0;
}
- // see if we can open the file
-#ifdef CONFIG_FEATURE_VI_READONLY
- if (vi_readonly) goto fi1; // do not try write-mode
-#endif
- fd = open((char *) fn, O_RDWR); // assume read & write
+ // read file to buffer
+ fd = open(fn, O_RDONLY);
if (fd < 0) {
- // could not open for writing- maybe file is read only
-#ifdef CONFIG_FEATURE_VI_READONLY
- fi1:
-#endif
- fd = open((char *) fn, O_RDONLY); // try read-only
- if (fd < 0) {
- psbs("\"%s\" %s", fn, "could not open file");
- goto fi0;
- }
-#ifdef CONFIG_FEATURE_VI_READONLY
- // got the file- read-only
- readonly = TRUE;
-#endif /* CONFIG_FEATURE_VI_READONLY */
+ psbs("\"%s\" %s", fn, "cannot open file");
+ goto fi0;
}
p = text_hole_make(p, size);
cnt = read(fd, p, size);
if (cnt < 0) {
cnt = -1;
p = text_hole_delete(p, p + size - 1); // un-do buffer insert
- psbs("could not read file \"%s\"", fn);
+ psbs("cannot read file \"%s\"", fn);
} else if (cnt < size) {
// There was a partial read, shrink unused space text[]
p = text_hole_delete(p + cnt, p + (size - cnt) - 1); // un-do buffer insert
- psbs("could not read all of file \"%s\"", fn);
+ psbs("cannot read all of file \"%s\"", fn);
}
if (cnt >= size)
file_modified++;
- fi0:
- return (cnt);
+ fi0:
+ return cnt;
+}
+
+#if ENABLE_FEATURE_VI_READONLY
+static void update_ro_status(const char *fn)
+{
+ struct stat sb;
+ if (stat(fn, &sb) == 0) {
+ readonly = vi_readonly || (access(fn, W_OK) < 0) ||
+ /* root will always have access()
+ * so we check fileperms too */
+ !(sb.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH));
+ }
}
+#endif
-static int file_write(Byte * fn, Byte * first, Byte * last)
+static int file_write(char * fn, char * first, char * last)
{
int fd, cnt, charcnt;
if (fn == 0) {
psbs("No current filename");
- return (-2);
+ return -2;
}
charcnt = 0;
// FIXIT- use the correct umask()
- fd = open((char *) fn, (O_WRONLY | O_CREAT | O_TRUNC), 0664);
+ fd = open(fn, (O_WRONLY | O_CREAT | O_TRUNC), 0664);
if (fd < 0)
- return (-1);
+ return -1;
cnt = last - first + 1;
charcnt = write(fd, first, cnt);
if (charcnt == cnt) {
// good write
- //file_modified= FALSE; // the file has not been modified
+ //file_modified = FALSE; // the file has not been modified
} else {
charcnt = 0;
}
close(fd);
- return (charcnt);
+ return charcnt;
}
//----- Terminal Drawing ---------------------------------------
//----- Move the cursor to row x col (count from 0, not 1) -------
static void place_cursor(int row, int col, int opti)
{
- char cm1[BUFSIZ];
+ char cm1[MAX_LINELEN];
char *cm;
-#ifdef CONFIG_FEATURE_VI_OPTIMIZE_CURSOR
- char cm2[BUFSIZ];
- Byte *screenp;
- // char cm3[BUFSIZ];
- int Rrow= last_row;
-#endif /* CONFIG_FEATURE_VI_OPTIMIZE_CURSOR */
+#if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR
+ char cm2[MAX_LINELEN];
+ char *screenp;
+ // char cm3[MAX_LINELEN];
+ int Rrow = last_row;
+#endif
- memset(cm1, '\0', BUFSIZ - 1); // clear the buffer
+ memset(cm1, '\0', MAX_LINELEN); // clear the buffer
if (row < 0) row = 0;
if (row >= rows) row = rows - 1;
if (col >= columns) col = columns - 1;
//----- 1. Try the standard terminal ESC sequence
- sprintf((char *) cm1, CMrc, row + 1, col + 1);
- cm= cm1;
- if (! opti) goto pc0;
+ sprintf(cm1, CMrc, row + 1, col + 1);
+ cm = cm1;
+ if (!opti)
+ goto pc0;
-#ifdef CONFIG_FEATURE_VI_OPTIMIZE_CURSOR
+#if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR
//----- find the minimum # of chars to move cursor -------------
//----- 2. Try moving with discreet chars (Newline, [back]space, ...)
- memset(cm2, '\0', BUFSIZ - 1); // clear the buffer
+ memset(cm2, '\0', MAX_LINELEN); // clear the buffer
// move to the correct row
while (row < Rrow) {
strcat(cm2, "\r"); // start at col 0
// just send out orignal source char to get to correct place
screenp = &screen[row * columns]; // start of screen line
- strncat(cm2, (char* )screenp, col);
+ strncat(cm2, screenp, col);
//----- 3. Try some other way of moving cursor
//---------------------------------------------
// pick the shortest cursor motion to send out
- cm= cm1;
+ cm = cm1;
if (strlen(cm2) < strlen(cm)) {
- cm= cm2;
+ cm = cm2;
} /* else if (strlen(cm3) < strlen(cm)) {
cm= cm3;
} */
-#endif /* CONFIG_FEATURE_VI_OPTIMIZE_CURSOR */
- pc0:
+#endif /* FEATURE_VI_OPTIMIZE_CURSOR */
+ pc0:
write1(cm); // move the cursor
}
{
standout_start(); // send "start reverse video" sequence
redraw(TRUE);
- (void) mysleep(h);
+ mysleep(h);
standout_end(); // send "end reverse video" sequence
redraw(TRUE);
}
static void Indicate_Error(void)
{
-#ifdef CONFIG_FEATURE_VI_CRASHME
+#if ENABLE_FEATURE_VI_CRASHME
if (crashme > 0)
return; // generate a random command
-#endif /* CONFIG_FEATURE_VI_CRASHME */
+#endif
if (!err_method) {
write1(bell); // send out a bell character
} else {
memset(screen, ' ', screensize); // clear new screen
}
-static int bufsum(unsigned char *buf, int count)
+static int bufsum(char *buf, int count)
{
int sum = 0;
- unsigned char *e = buf + count;
+ char *e = buf + count;
+
while (buf < e)
- sum += *buf++;
+ sum += (unsigned char) *buf++;
return sum;
}
if (have_status_msg || ((cnt > 0 && last_status_cksum != cksum))) {
last_status_cksum= cksum; // remember if we have seen this line
place_cursor(rows - 1, 0, FALSE); // put cursor on status line
- write1((char*)status_buffer);
+ write1(status_buffer);
clear_to_eol();
if (have_status_msg) {
- if (((int)strlen((char*)status_buffer) - (have_status_msg - 1)) >
+ if (((int)strlen(status_buffer) - (have_status_msg - 1)) >
(columns - 1) ) {
have_status_msg = 0;
Hit_Return();
va_list args;
va_start(args, format);
- strcpy((char *) status_buffer, SOs); // Terminal standout mode on
- vsprintf((char *) status_buffer + strlen((char *) status_buffer), format, args);
- strcat((char *) status_buffer, SOn); // Terminal standout mode off
+ strcpy(status_buffer, SOs); // Terminal standout mode on
+ vsprintf(status_buffer + strlen(status_buffer), format, args);
+ strcat(status_buffer, SOn); // Terminal standout mode off
va_end(args);
have_status_msg = 1 + sizeof(SOs) + sizeof(SOn) - 2;
-
- return;
}
// format status buffer
va_list args;
va_start(args, format);
- vsprintf((char *) status_buffer, format, args);
+ vsprintf(status_buffer, format, args);
va_end(args);
have_status_msg = 1;
-
- return;
}
-static void ni(Byte * s) // display messages
+static void ni(const char * s) // display messages
{
- Byte buf[BUFSIZ];
+ char buf[MAX_LINELEN];
print_literal(buf, s);
psbs("\'%s\' is not implemented", buf);
static int format_edit_status(void) // show file status on status line
{
- int cur, percent, ret, trunc_at;
static int tot;
+ int cur, percent, ret, trunc_at;
+
// file_modified is now a counter rather than a flag. this
// helps reduce the amount of line counting we need to do.
// (this will cause a mis-reporting of modified status
trunc_at = columns < STATUS_BUFFER_LEN-1 ?
columns : STATUS_BUFFER_LEN-1;
- ret = snprintf((char *) status_buffer, trunc_at+1,
-#ifdef CONFIG_FEATURE_VI_READONLY
+ ret = snprintf(status_buffer, trunc_at+1,
+#if ENABLE_FEATURE_VI_READONLY
"%c %s%s%s %d/%d %d%%",
#else
"%c %s%s %d/%d %d%%",
#endif
(cmd_mode ? (cmd_mode == 2 ? 'R':'I'):'-'),
- (cfn != 0 ? (char *) cfn : "No file"),
-#ifdef CONFIG_FEATURE_VI_READONLY
+ (cfn != 0 ? cfn : "No file"),
+#if ENABLE_FEATURE_VI_READONLY
((vi_readonly || readonly) ? " [Read-only]" : ""),
#endif
(file_modified ? " [modified]" : ""),
}
//----- Format a text[] line into a buffer ---------------------
-static void format_line(Byte *dest, Byte *src, int li)
+static void format_line(char *dest, char *src, int li)
{
int co;
- Byte c;
+ char c;
- for (co= 0; co < MAX_SCR_COLS; co++) {
- c= ' '; // assume blank
+ for (co = 0; co < MAX_SCR_COLS; co++) {
+ c = ' '; // assume blank
if (li > 0 && co == 0) {
c = '~'; // not first line, assume Tilde
}
}
if (c == '\n')
break;
- if (c > 127 && !Isprint(c)) {
+ if ((c & 0x80) && !Isprint(c)) {
c = '.';
}
- if (c < ' ' || c == 127) {
+ if ((unsigned char)(c) < ' ' || c == 0x7f) {
if (c == '\t') {
c = ' ';
// co % 8 != 7
}
} else {
dest[co++] = '^';
- if(c == 127)
+ if (c == 0x7f)
c = '?';
- else
+ else
c += '@'; // make it visible
}
}
static void refresh(int full_screen)
{
static int old_offset;
+
int li, changed;
- Byte buf[MAX_SCR_COLS];
- Byte *tp, *sp; // pointer into text[] and screen[]
-#ifdef CONFIG_FEATURE_VI_OPTIMIZE_CURSOR
- int last_li= -2; // last line that changed- for optimizing cursor movement
-#endif /* CONFIG_FEATURE_VI_OPTIMIZE_CURSOR */
-
-#ifdef CONFIG_FEATURE_VI_WIN_RESIZE
- window_size_get(0);
-#endif /* CONFIG_FEATURE_VI_WIN_RESIZE */
+ char buf[MAX_SCR_COLS];
+ char *tp, *sp; // pointer into text[] and screen[]
+#if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR
+ int last_li = -2; // last line that changed- for optimizing cursor movement
+#endif
+
+ if (ENABLE_FEATURE_VI_WIN_RESIZE)
+ get_terminal_width_height(0, &columns, &rows);
sync_cursor(dot, &crow, &ccol); // where cursor will be (on "dot")
tp = screenbegin; // index into text[] of top line
}
// compare newly formatted buffer with virtual screen
// look forward for first difference between buf and screen
- for ( ; cs <= ce; cs++) {
+ for (; cs <= ce; cs++) {
if (buf[cs + offset] != sp[cs]) {
changed = TRUE; // mark for redraw
break;
// if horz offset has changed, force a redraw
if (offset != old_offset) {
- re0:
+ re0:
changed = TRUE;
}
// to handle offsets correctly
place_cursor(li, cs, FALSE);
} else {
-#ifdef CONFIG_FEATURE_VI_OPTIMIZE_CURSOR
+#if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR
// if this just the next line
// try to optimize cursor movement
// otherwise, use standard ESC sequence
place_cursor(li, cs, li == (last_li+1) ? TRUE : FALSE);
last_li= li;
-#else /* CONFIG_FEATURE_VI_OPTIMIZE_CURSOR */
+#else
place_cursor(li, cs, FALSE); // use standard ESC sequence
-#endif /* CONFIG_FEATURE_VI_OPTIMIZE_CURSOR */
+#endif /* FEATURE_VI_OPTIMIZE_CURSOR */
}
// write line out to terminal
{
- int nic = ce-cs+1;
- char *out = (char*)sp+cs;
+ int nic = ce - cs + 1;
+ char *out = sp + cs;
- while(nic-- > 0) {
+ while (nic-- > 0) {
putchar(*out);
out++;
}
}
-#ifdef CONFIG_FEATURE_VI_OPTIMIZE_CURSOR
+#if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR
last_row = li;
-#endif /* CONFIG_FEATURE_VI_OPTIMIZE_CURSOR */
+#endif
}
}
-#ifdef CONFIG_FEATURE_VI_OPTIMIZE_CURSOR
+#if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR
place_cursor(crow, ccol, (crow == last_row) ? TRUE : FALSE);
last_row = crow;
#else
place_cursor(crow, ccol, FALSE);
-#endif /* CONFIG_FEATURE_VI_OPTIMIZE_CURSOR */
+#endif
if (offset != old_offset)
old_offset = offset;
//---------------------------------------------------------------------
//----- Execute a Vi Command -----------------------------------
-static void do_cmd(Byte c)
+static void do_cmd(char c)
{
- Byte c1, *p, *q, *msg, buf[9], *save_dot;
+ const char *msg;
+ char c1, *p, *q, buf[9], *save_dot;
int cnt, i, j, dir, yf;
c1 = c; // quiet the compiler
cnt = yf = dir = 0; // quiet the compiler
- p = q = save_dot = msg = buf; // quiet the compiler
+ msg = p = q = save_dot = buf; // quiet the compiler
memset(buf, '\0', 9); // clear buf
show_status_line();
if (cmd_mode == 2) {
// flip-flop Insert/Replace mode
- if (c == VI_K_INSERT) goto dc_i;
+ if (c == VI_K_INSERT)
+ goto dc_i;
// we are 'R'eplacing the current *dot with new char
if (*dot == '\n') {
// don't Replace past E-o-l
goto dc1;
}
-key_cmd_mode:
+ key_cmd_mode:
switch (c) {
//case 0x01: // soh
//case 0x09: // ht
//case 0x10: // dle
//case 0x11: // dc1
//case 0x13: // dc3
-#ifdef CONFIG_FEATURE_VI_CRASHME
+#if ENABLE_FEATURE_VI_CRASHME
case 0x14: // dc4 ctrl-T
crashme = (crashme == 0) ? 1 : 0;
break;
-#endif /* CONFIG_FEATURE_VI_CRASHME */
+#endif
//case 0x16: // syn
//case 0x17: // etb
//case 0x18: // can
buf[1] = c + '@';
buf[2] = '\0';
}
- ni((Byte *) buf);
+ ni(buf);
end_cmd_q(); // stop adding to q
case 0x00: // nul- ignore
break;
case VI_K_PAGEUP: // Cursor Key Page Up
dot_scroll(rows - 2, -1);
break;
-#ifdef CONFIG_FEATURE_VI_USE_SIGNALS
+#if ENABLE_FEATURE_VI_USE_SIGNALS
case 0x03: // ctrl-C interrupt
longjmp(restart, 1);
break;
case 26: // ctrl-Z suspend
suspend_sig(SIGTSTP);
break;
-#endif /* CONFIG_FEATURE_VI_USE_SIGNALS */
+#endif
case 4: // ctrl-D scroll down half screen
dot_scroll((rows - 2) / 2, 1);
break;
case 'h': // h- move left
case VI_K_LEFT: // cursor key Left
case 8: // ctrl-H- move left (This may be ERASE char)
- case 127: // DEL- move left (This may be ERASE char)
+ case 0x7f: // DEL- move left (This may be ERASE char)
if (cmdcnt-- > 1) {
do_cmd(c);
} // repeat cnt
case 18: // ctrl-R force redraw
place_cursor(0, 0, FALSE); // put cursor in correct place
clear_to_eos(); // tel terminal to erase display
- (void) mysleep(10);
+ mysleep(10);
screen_erase(); // erase the internal screen buffer
last_status_cksum = 0; // force status update
refresh(TRUE); // this will redraw the entire display
} // repeat cnt
dot_right();
break;
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
case '"': // "- name a register to use for Delete/Yank
c1 = get_one_char();
c1 = tolower(c1);
if (islower(c1)) {
c1 = c1 - 'a';
// get the b-o-l
- q = mark[(int) c1];
+ q = mark[(unsigned char) c1];
if (text <= q && q < end) {
dot = q;
dot_begin(); // go to B-o-l
break;
}
// are we putting whole lines or strings
- if (strchr((char *) p, '\n') != NULL) {
+ if (strchr(p, '\n') != NULL) {
if (c == 'P') {
dot_begin(); // putting lines- Put above
}
dot_skip_over_ws();
}
break;
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif /* FEATURE_VI_YANKMARK */
case '$': // $- goto end of line
case VI_K_END: // Cursor Key End
if (cmdcnt-- > 1) {
if (cmdcnt-- > 1) {
do_cmd(';');
} // repeat cnt
- if (last_forward_char == 0) break;
+ if (last_forward_char == 0)
+ break;
q = dot + 1;
while (q < end - 1 && *q != '\n' && *q != last_forward_char) {
q++;
dot_prev();
dot_skip_over_ws();
break;
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
+#if ENABLE_FEATURE_VI_DOT_CMD
case '.': // .- repeat the last modifying command
// Stuff the last_modifying_cmd back into stdin
// and let it be re-executed.
if (last_modifying_cmd != 0) {
- ioq = ioq_start = (Byte *) bb_xstrdup((char *) last_modifying_cmd);
+ ioq = ioq_start = xstrdup(last_modifying_cmd);
}
break;
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
-#ifdef CONFIG_FEATURE_VI_SEARCH
+#endif
+#if ENABLE_FEATURE_VI_SEARCH
case '?': // /- search for a pattern
case '/': // /- search for a pattern
buf[0] = c;
buf[1] = '\0';
q = get_input_line(buf); // get input line- use "status line"
- if (strlen((char *) q) == 1)
- goto dc3; // if no pat re-use old pat
- if (strlen((char *) q) > 1) { // new pat- save it and find
+ if (q[0] && !q[1])
+ goto dc3; // if no pat re-use old pat
+ if (q[0]) { // strlen(q) > 1: new pat- save it and find
// there is a new pat
free(last_search_pattern);
- last_search_pattern = (Byte *) bb_xstrdup((char *) q);
+ last_search_pattern = xstrdup(q);
goto dc3; // now find the pattern
}
// user changed mind and erased the "/"- do nothing
if (cmdcnt-- > 1) {
do_cmd(c);
} // repeat cnt
- dc3:
+ dc3:
if (last_search_pattern == 0) {
- msg = (Byte *) "No previous regular expression";
+ msg = "No previous regular expression";
goto dc2;
}
if (last_search_pattern[0] == '/') {
dir = BACK;
p = dot - 1;
}
- dc4:
+ dc4:
q = char_search(p, last_search_pattern + 1, dir, FULL);
if (q != NULL) {
dot = q; // good search, update "dot"
- msg = (Byte *) "";
+ msg = "";
goto dc2;
}
// no pattern found between "dot" and "end"- continue at top
q = char_search(p, last_search_pattern + 1, dir, FULL);
if (q != NULL) { // found something
dot = q; // found new pattern- goto it
- msg = (Byte *) "search hit BOTTOM, continuing at TOP";
+ msg = "search hit BOTTOM, continuing at TOP";
if (dir == BACK) {
- msg = (Byte *) "search hit TOP, continuing at BOTTOM";
+ msg = "search hit TOP, continuing at BOTTOM";
}
} else {
- msg = (Byte *) "Pattern not found";
+ msg = "Pattern not found";
}
- dc2:
- if (*msg) psbs("%s", msg);
+ dc2:
+ if (*msg)
+ psbs("%s", msg);
break;
case '{': // {- move backward paragraph
- q = char_search(dot, (Byte *) "\n\n", BACK, FULL);
+ q = char_search(dot, "\n\n", BACK, FULL);
if (q != NULL) { // found blank line
dot = next_line(q); // move to next blank line
}
break;
case '}': // }- move forward paragraph
- q = char_search(dot, (Byte *) "\n\n", FORWARD, FULL);
+ q = char_search(dot, "\n\n", FORWARD, FULL);
if (q != NULL) { // found blank line
dot = next_line(q); // move to next blank line
}
break;
-#endif /* CONFIG_FEATURE_VI_SEARCH */
+#endif /* FEATURE_VI_SEARCH */
case '0': // 0- goto begining of line
case '1': // 1-
case '2': // 2-
}
break;
case ':': // :- the colon mode commands
- p = get_input_line((Byte *) ":"); // get input line- use "status line"
-#ifdef CONFIG_FEATURE_VI_COLON
+ p = get_input_line(":"); // get input line- use "status line"
+#if ENABLE_FEATURE_VI_COLON
colon(p); // execute the command
-#else /* CONFIG_FEATURE_VI_COLON */
+#else
if (*p == ':')
p++; // move past the ':'
- cnt = strlen((char *) p);
+ cnt = strlen(p);
if (cnt <= 0)
break;
- if (strncasecmp((char *) p, "quit", cnt) == 0 ||
- strncasecmp((char *) p, "q!", cnt) == 0) { // delete lines
+ if (strncasecmp(p, "quit", cnt) == 0
+ || strncasecmp(p, "q!", cnt) == 0 // delete lines
+ ) {
if (file_modified && p[1] != '!') {
psbs("No write since last change (:quit! overrides)");
} else {
editing = 0;
}
- } else if (strncasecmp((char *) p, "write", cnt) == 0
- || strncasecmp((char *) p, "wq", cnt) == 0
- || strncasecmp((char *) p, "wn", cnt) == 0
- || strncasecmp((char *) p, "x", cnt) == 0) {
+ } else if (strncasecmp(p, "write", cnt) == 0
+ || strncasecmp(p, "wq", cnt) == 0
+ || strncasecmp(p, "wn", cnt) == 0
+ || strncasecmp(p, "x", cnt) == 0
+ ) {
cnt = file_write(cfn, text, end - 1);
if (cnt < 0) {
if (cnt == -1)
file_modified = 0;
last_file_modified = -1;
psb("\"%s\" %dL, %dC", cfn, count_lines(text, end - 1), cnt);
- if (p[0] == 'x' || p[1] == 'q' || p[1] == 'n' ||
- p[0] == 'X' || p[1] == 'Q' || p[1] == 'N') {
+ if (p[0] == 'x' || p[1] == 'q' || p[1] == 'n'
+ || p[0] == 'X' || p[1] == 'Q' || p[1] == 'N'
+ ) {
editing = 0;
}
}
- } else if (strncasecmp((char *) p, "file", cnt) == 0 ) {
+ } else if (strncasecmp(p, "file", cnt) == 0) {
last_status_cksum = 0; // force status update
- } else if (sscanf((char *) p, "%d", &j) > 0) {
+ } else if (sscanf(p, "%d", &j) > 0) {
dot = find_line(j); // go to line # j
dot_skip_over_ws();
} else { // unrecognised cmd
- ni((Byte *) p);
+ ni(p);
}
-#endif /* CONFIG_FEATURE_VI_COLON */
+#endif /* !FEATURE_VI_COLON */
break;
case '<': // <- Left shift something
case '>': // >- Right shift something
cnt = count_lines(text, dot); // remember what line we are on
c1 = get_one_char(); // get the type of thing to delete
find_range(&p, &q, c1);
- (void) yank_delete(p, q, 1, YANKONLY); // save copy before change
+ yank_delete(p, q, 1, YANKONLY); // save copy before change
p = begin_line(p);
q = end_line(q);
i = count_lines(p, q); // # of lines we are shifting
// shift left- remove tab or 8 spaces
if (*p == '\t') {
// shrink buffer 1 char
- (void) text_hole_delete(p, p);
+ text_hole_delete(p, p);
} else if (*p == ' ') {
// we should be calculating columns, not just SPACE
for (j = 0; *p == ' ' && j < tabstop; j++) {
- (void) text_hole_delete(p, p);
+ text_hole_delete(p, p);
}
}
} else if (c == '>') {
// shift right -- add tab or 8 spaces
- (void) char_insert(p, '\t');
+ char_insert(p, '\t');
}
}
dot = find_line(cnt); // what line were we on
dot = yank_delete(save_dot, dot, 0, YANKDEL); // delete to e-o-l
if (c == 'C')
goto dc_i; // start inserting
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
+#if ENABLE_FEATURE_VI_DOT_CMD
if (c == 'D')
end_cmd_q(); // stop adding to q
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
+#endif
break;
case 'G': // G- goto to a line number (default= E-O-F)
dot = end - 1; // assume E-O-F
//**** fall thru to ... 'i'
case 'i': // i- insert before current char
case VI_K_INSERT: // Cursor Key Insert
- dc_i:
+ dc_i:
cmd_mode = 1; // start insrting
break;
case 'J': // J- join current and next lines together
goto dc_i;
break;
case 'R': // R- continuous Replace char
- dc5:
+ dc5:
cmd_mode = 2;
break;
case 'X': // X- delete char before dot
break;
}
if (file_modified) {
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
if (vi_readonly || readonly) {
- psbs("\"%s\" File is read only", cfn);
- break;
+ psbs("\"%s\" File is read only", cfn);
+ break;
}
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#endif
cnt = file_write(cfn, text, end - 1);
if (cnt < 0) {
if (cnt == -1)
break;
case 'c': // c- change something
case 'd': // d- delete something
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
case 'y': // y- yank something
case 'Y': // Y- Yank a line
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif
yf = YANKDEL; // assume either "c" or "d"
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
if (c == 'y' || c == 'Y')
yf = YANKONLY;
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif
c1 = 'y';
if (c != 'Y')
c1 = get_one_char(); // get the type of thing to delete
if (c1 != 27) {
// if CHANGING, not deleting, start inserting after the delete
if (c == 'c') {
- strcpy((char *) buf, "Change");
+ strcpy(buf, "Change");
goto dc_i; // start inserting
}
if (c == 'd') {
- strcpy((char *) buf, "Delete");
+ strcpy(buf, "Delete");
}
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
if (c == 'y' || c == 'Y') {
- strcpy((char *) buf, "Yank");
+ strcpy(buf, "Yank");
}
p = reg[YDreg];
- q = p + strlen((char *) p);
+ q = p + strlen(p);
for (cnt = 0; p <= q; p++) {
if (*p == '\n')
cnt++;
}
psb("%s %d lines (%d chars) using [%c]",
- buf, cnt, strlen((char *) reg[YDreg]), what_reg());
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+ buf, cnt, strlen(reg[YDreg]), what_reg());
+#endif
end_cmd_q(); // stop adding to q
}
break;
break;
}
- dc1:
+ dc1:
// if text[] just became empty, add back an empty line
if (end == text) {
- (void) char_insert(text, '\n'); // start empty buf with dummy line
+ char_insert(text, '\n'); // start empty buf with dummy line
dot = text;
}
// it is OK for dot to exactly equal to end, otherwise check dot validity
if (dot != end) {
dot = bound_dot(dot); // make sure "dot" is valid
}
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
check_context(c); // update the current context
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif
if (!isdigit(c))
cmdcnt = 0; // cmd was not a number, reset cmdcnt
dot--;
}
-#ifdef CONFIG_FEATURE_VI_CRASHME
+#if ENABLE_FEATURE_VI_CRASHME
static int totalcmds = 0;
static int Mp = 85; // Movement command Probability
static int Np = 90; // Non-movement command Probability
static int Yp = 98; // Yank command Probability
static int Pp = 99; // Put command Probability
static int M = 0, N = 0, I = 0, D = 0, Y = 0, P = 0, U = 0;
-char chars[20] = "\t012345 abcdABCD-=.$";
-char *words[20] = { "this", "is", "a", "test",
+const char chars[20] = "\t012345 abcdABCD-=.$";
+const char *const words[20] = {
+ "this", "is", "a", "test",
"broadcast", "the", "emergency", "of",
"system", "quick", "brown", "fox",
"jumped", "over", "lazy", "dogs",
"back", "January", "Febuary", "March"
};
-char *lines[20] = {
+const char *const lines[20] = {
"You should have received a copy of the GNU General Public License\n",
"char c, cm, *cmd, *cmd1;\n",
"generate a command by percentages\n",
// is there already a command running?
if (readed_for_parse > 0)
goto cd1;
- cd0:
+ cd0:
startrbi = rbi = 0;
sleeptime = 0; // how long to pause between commands
- memset(readbuffer, '\0', BUFSIZ); // clear the read buffer
+ memset(readbuffer, '\0', MAX_LINELEN); // clear the read buffer
// generate a command by percentages
percent = (int) lrand48() % 100; // get a number from 0-99
if (percent < Mp) { // Movement commands
if (thing == 0) { // insert chars
readbuffer[rbi++] = chars[((int) lrand48() % strlen(chars))];
} else if (thing == 1) { // insert words
- strcat((char *) readbuffer, words[(int) lrand48() % 20]);
- strcat((char *) readbuffer, " ");
+ strcat(readbuffer, words[(int) lrand48() % 20]);
+ strcat(readbuffer, " ");
sleeptime = 0; // how fast to type
} else if (thing == 2) { // insert lines
- strcat((char *) readbuffer, lines[(int) lrand48() % 20]);
+ strcat(readbuffer, lines[(int) lrand48() % 20]);
sleeptime = 0; // how fast to type
} else { // insert multi-lines
- strcat((char *) readbuffer, multilines[(int) lrand48() % 20]);
+ strcat(readbuffer, multilines[(int) lrand48() % 20]);
sleeptime = 0; // how fast to type
}
}
- strcat((char *) readbuffer, "\033");
+ strcat(readbuffer, "\033");
}
readed_for_parse = strlen(readbuffer);
- cd1:
+ cd1:
totalcmds++;
if (sleeptime > 0)
- (void) mysleep(sleeptime); // sleep 1/100 sec
+ mysleep(sleeptime); // sleep 1/100 sec
}
// test to see if there are any errors
static void crash_test()
{
static time_t oldtim;
+
time_t tim;
- char d[2], msg[BUFSIZ];
+ char d[2], msg[MAX_LINELEN];
msg[0] = '\0';
if (end < text) {
- strcat((char *) msg, "end<text ");
+ strcat(msg, "end<text ");
}
if (end > textend) {
- strcat((char *) msg, "end>textend ");
+ strcat(msg, "end>textend ");
}
if (dot < text) {
- strcat((char *) msg, "dot<text ");
+ strcat(msg, "dot<text ");
}
if (dot > end) {
- strcat((char *) msg, "dot>end ");
+ strcat(msg, "dot>end ");
}
if (screenbegin < text) {
- strcat((char *) msg, "screenbegin<text ");
+ strcat(msg, "screenbegin<text ");
}
if (screenbegin > end - 1) {
- strcat((char *) msg, "screenbegin>end-1 ");
+ strcat(msg, "screenbegin>end-1 ");
}
- if (strlen(msg) > 0) {
+ if (msg[0]) {
alarm(0);
printf("\n\n%d: \'%c\' %s\n\n\n%s[Hit return to continue]%s",
totalcmds, last_input_char, msg, SOs, SOn);
}
tim = (time_t) time((time_t *) 0);
if (tim >= (oldtim + 3)) {
- sprintf((char *) status_buffer,
+ sprintf(status_buffer,
"Tot=%d: M=%d N=%d I=%d D=%d Y=%d P=%d U=%d size=%d",
totalcmds, M, N, I, D, Y, P, U, end - text + 1);
oldtim = tim;
}
- return;
}
-#endif /* CONFIG_FEATURE_VI_CRASHME */
+#endif
projects / oweals / busybox.git / blobdiff