-/* 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>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-static const char vi_Version[] =
- "$Id: vi.c,v 1.36 2004/04/14 17:51:09 andersen Exp $";
-
-/*
- * 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
+ * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
/*
* 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 <termios.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include <sys/time.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"
-#endif /* STANDALONE */
-#ifdef CONFIG_LOCALE_SUPPORT
+#define ENABLE_FEATURE_VI_CRASHME 0
+
+#if ENABLE_LOCALE_SUPPORT
#define Isprint(c) isprint((c))
#else
#define Isprint(c) ( (c) >= ' ' && (c) != 127 && (c) != ((unsigned char)'\233') )
#endif
-#ifndef TRUE
-#define TRUE ((int)1)
-#define FALSE ((int)0)
-#endif /* TRUE */
#define MAX_SCR_COLS BUFSIZ
// Misc. non-Ascii keys that report an escape sequence
static const char CMdown[] = "\n";
-static const int YANKONLY = FALSE;
-static const int YANKDEL = TRUE;
-static const int FORWARD = 1; // code depends on "1" for array index
-static const int BACK = -1; // code depends on "-1" for array index
-static const int LIMITED = 0; // how much of text[] in char_search
-static const int FULL = 1; // how much of text[] in char_search
+enum {
+ YANKONLY = FALSE,
+ YANKDEL = TRUE,
+ FORWARD = 1, // code depends on "1" for array index
+ BACK = -1, // code depends on "-1" for array index
+ LIMITED = 0, // how much of text[] in char_search
+ FULL = 1, // how much of text[] in char_search
-static const int S_BEFORE_WS = 1; // used in skip_thing() for moving "dot"
-static const int S_TO_WS = 2; // used in skip_thing() for moving "dot"
-static const int S_OVER_WS = 3; // used in skip_thing() for moving "dot"
-static const int S_END_PUNCT = 4; // used in skip_thing() for moving "dot"
-static const int S_END_ALNUM = 5; // used in skip_thing() for moving "dot"
+ S_BEFORE_WS = 1, // used in skip_thing() for moving "dot"
+ 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"
+};
typedef unsigned char Byte;
static int editing; // >0 while we are editing a file
-static int cmd_mode; // 0=command 1=insert
+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 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
+#define STATUS_BUFFER_LEN 200
+static int have_status_msg; // is default edit status needed?
+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 *text, *end; // 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 last_input_char; // last char read from user
static Byte last_forward_char; // last char searched for with 'f'
-#ifdef CONFIG_FEATURE_VI_OPTIMIZE_CURSOR
+#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
+#endif
+#if ENABLE_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
+#if ENABLE_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)
+#endif
+#if ENABLE_FEATURE_VI_DOT_CMD || ENABLE_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
+#endif
+#if ENABLE_FEATURE_VI_READONLY
static int vi_readonly, readonly;
-#endif /* CONFIG_FEATURE_VI_READONLY */
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#endif
+#if ENABLE_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
+#endif
+#if ENABLE_FEATURE_VI_SEARCH
static Byte *last_search_pattern; // last pattern from a '/' or '?' search
-#endif /* CONFIG_FEATURE_VI_SEARCH */
+#endif
static void edit_file(Byte *); // edit one file
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 edit_status(void); // show file status on status line
+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 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
+#if ENABLE_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 void Hit_Return(void);
+#endif
+#if ENABLE_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
+#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
+#endif
+#if ENABLE_FEATURE_VI_DOT_CMD
static void start_new_cmd_q(Byte); // 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
+#else
+#define end_cmd_q() ((void)0)
+#endif
+#if ENABLE_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_COLON) || defined(CONFIG_FEATURE_VI_CRASHME)
+#endif
+#if ENABLE_FEATURE_VI_YANKMARK || (ENABLE_FEATURE_VI_COLON && ENABLE_FEATURE_VI_SEARCH) || ENABLE_FEATURE_VI_CRASHME
static Byte *string_insert(Byte *, Byte *); // insert the string at 'p'
-#endif /* CONFIG_FEATURE_VI_YANKMARK || CONFIG_FEATURE_VI_COLON || CONFIG_FEATURE_VI_CRASHME */
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#endif
+#if ENABLE_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
+#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);
}
-extern int vi_main(int argc, char **argv)
+int vi_main(int argc, char **argv)
{
int c;
- RESERVE_CONFIG_BUFFER(STATUS_BUFFER, 200);
+ 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 */
+#endif
#if defined(CONFIG_FEATURE_VI_USE_SIGNALS) || defined(CONFIG_FEATURE_VI_CRASHME)
my_pid = getpid();
#endif
-#ifdef CONFIG_FEATURE_VI_CRASHME
+#if ENABLE_FEATURE_VI_CRASHME
(void) srand((long) my_pid);
-#endif /* CONFIG_FEATURE_VI_CRASHME */
+#endif
- status_buffer = STATUS_BUFFER;
+ status_buffer = (Byte *)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)
+#endif
+#if ENABLE_FEATURE_VI_DOT_CMD || ENABLE_FEATURE_VI_YANKMARK
modifying_cmds = (Byte *) "aAcCdDiIJoOpPrRsxX<>~"; // cmds modifying text[]
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
+#endif
// 1- process $HOME/.exrc file
// 2- process EXINIT variable from environment
// 3- process command line args
while ((c = getopt(argc, argv, "hCR")) != -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
for (; optind < argc; optind++) {
editing = 1; // 0=exit, 1=one file, 2+ =many files
free(cfn);
- cfn = (Byte *) bb_xstrdup(argv[optind]);
+ cfn = (Byte *) xstrdup(argv[optind]);
edit_file(cfn);
}
}
//-----------------------------------------------------------
- return (0);
-}
-
-#ifdef CONFIG_FEATURE_VI_WIN_RESIZE
-//----- See what the window size currently is --------------------
-static inline void window_size_get(int fd)
-{
- get_terminal_width_height(fd, &columns, &rows);
+ return 0;
}
-#endif /* CONFIG_FEATURE_VI_WIN_RESIZE */
static void edit_file(Byte * fn)
{
Byte 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
+#endif
+#if ENABLE_FEATURE_VI_YANKMARK
static Byte *cur_line;
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif
rawmode();
rows = 24;
columns = 80;
ch= -1;
-#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
cnt = file_size(fn); // file size
if (ch < 1) {
(void) char_insert(text, '\n'); // start empty buf with dummy line
}
- file_modified = FALSE;
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+ file_modified = 0;
+ last_file_modified = -1;
+#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;
- edit_status();
-#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;
adding2q = 0;
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
+#endif
redraw(FALSE); // dont force every col re-draw
show_status_line();
- fflush(stdout);
//------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
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) {
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
+#if ENABLE_FEATURE_VI_COLON
static Byte *get_one_address(Byte * p, int *addr) // get colon addr, if present
{
int st;
Byte *q;
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
Byte c;
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
-#ifdef CONFIG_FEATURE_VI_SEARCH
+#endif
+#if ENABLE_FEATURE_VI_SEARCH
Byte *pat, buf[BUFSIZ];
-#endif /* CONFIG_FEATURE_VI_SEARCH */
+#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);
*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 = (Byte *) xstrdup((char *) 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);
// 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
ga0:
while (isblnk(*p))
p++; // skip over trailing spaces
- return (p);
+ return p;
}
-#ifdef CONFIG_FEATURE_VI_SETOPTS
+#if ENABLE_FEATURE_VI_SET && ENABLE_FEATURE_VI_SETOPTS
static void setops(const Byte *args, const char *opname, int flg_no,
const char *short_opname, int opt)
{
{
Byte c, *orig_buf, *buf1, *q, *r;
Byte *fn, cmd[BUFSIZ], args[BUFSIZ];
- int i, l, li, ch, st, b, e;
- int useforce, forced;
+ 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
// :s/find/replace/ // substitute pattern "find" with "replace"
// :!<cmd> // run <cmd> then return
//
+
if (strlen((char *) buf) <= 0)
goto vc1;
if (*buf == ':')
buf++; // move past the ':'
- forced = useforce = FALSE;
- li = st = ch = i = 0;
+ li = ch = i = 0;
b = e = -1;
q = text; // assume 1,$ for the range
r = end - 1;
while (isblnk(*buf))
buf++;
strcpy((char *) args, (char *) buf);
- buf1 = last_char_is((char *)cmd, '!');
+ buf1 = (Byte*)last_char_is((char *)cmd, '!');
if (buf1) {
useforce = TRUE;
*buf1 = '\0'; // get rid of !
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((char *) cmd, "!", 1) == 0) { // run a cmd
// :!ls run the <cmd>
(void) 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(orig_buf+1); // run the cmd
+ system((char*)(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
+ }
+#endif
+ else if (strncmp((char *) cmd, "=", i) == 0) { // where is the address
if (b < 0) { // no addr given- use defaults
b = e = count_lines(text, dot);
}
psbs("No write since last change (:edit! overrides)");
goto vc1;
}
- if (strlen(args) > 0) {
+ if (strlen((char*)args) > 0) {
// the user supplied a file name
fn= args;
- } else if (cfn != 0 && strlen(cfn) > 0) {
+ } else if (cfn != 0 && strlen((char*)cfn) > 0) {
// no user supplied name- use the current filename
fn= cfn;
goto vc5;
// There is a read-able regular file
// make this the current file
- q = (Byte *) bb_xstrdup((char *) fn); // save the cfn
+ q = (Byte *) xstrdup((char *) fn); // save the cfn
free(cfn); // free the old name
cfn = q; // remember new cfn
(void) char_insert(text, '\n');
ch= 1;
}
- file_modified = FALSE;
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+ file_modified = 0;
+ last_file_modified = -1;
+#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
if (b != -1 || e != -1) {
if (strlen((char *) args) > 0) {
// user wants a new filename
free(cfn);
- cfn = (Byte *) bb_xstrdup((char *) args);
+ cfn = (Byte *) xstrdup((char *) args);
} else {
// user wants file status info
- edit_status();
+ last_status_cksum = 0; // force status update
}
} else if (strncasecmp((char *) cmd, "features", i) == 0) { // what features are available
// print out values of all features
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
// read after current line- unless user said ":0r foo"
if (b != 0)
q = next_line(q);
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
l= readonly; // remember current files' status
#endif
ch = file_insert(fn, q, file_size(fn));
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
readonly= l;
#endif
if (ch < 0)
// how many lines in text[]?
li = count_lines(q, q + ch - 1);
psb("\"%s\""
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
"%s"
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#endif
" %dL, %dC", fn,
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
((vi_readonly || readonly) ? " [Read only]" : ""),
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#endif
li, ch);
if (ch > 0) {
// if the insert is before "dot" then we need to update
if (q <= dot)
dot += ch;
- file_modified = TRUE;
+ file_modified++;
}
} else if (strncasecmp((char *) cmd, "rewind", i) == 0) { // rewind cmd line args
if (file_modified && ! useforce) {
optind = fn_start - 1;
editing = 0;
}
-#ifdef CONFIG_FEATURE_VI_SET
+#if ENABLE_FEATURE_VI_SET
} else if (strncasecmp((char *) cmd, "set", i) == 0) { // set or clear features
i = 0; // offset into args
if (strlen((char *) args) == 0) {
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
+#if ENABLE_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);
if (ch > 0 && ch < columns - 1)
tabstop = ch;
}
-#endif /* CONFIG_FEATURE_VI_SETOPTS */
-#endif /* CONFIG_FEATURE_VI_SET */
-#ifdef CONFIG_FEATURE_VI_SEARCH
+#endif /* FEATURE_VI_SETOPTS */
+#endif /* FEATURE_VI_SET */
+#if ENABLE_FEATURE_VI_SEARCH
} else if (strncasecmp((char *) cmd, "s", 1) == 0) { // substitute a pattern with a replacement pattern
Byte *ls, *F, *R;
int gflag;
}
q = next_line(ls);
}
-#endif /* CONFIG_FEATURE_VI_SEARCH */
+#endif /* 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, "x", i) == 0)) {
+ psb("%s", BB_VER " " BB_BT);
+ } 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) {
// is there a file name to write to?
if (strlen((char *) args) > 0) {
fn = args;
}
-#ifdef CONFIG_FEATURE_VI_READONLY
+#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;
// system(syscmd);
forced = FALSE;
}
- psb("\"%s\" %dL, %dC", fn, li, l);
- if (q == text && r == end - 1 && l == ch)
- file_modified = FALSE;
- if ((cmd[0] == 'x' || cmd[1] == 'q') && l == ch) {
- editing = 0;
+ if (l < 0) {
+ if (l == -1)
+ psbs("Write error: %s", strerror(errno));
+ } else {
+ psb("\"%s\" %dL, %dC", fn, li, l);
+ if (q == text && r == end - 1 && l == ch) {
+ file_modified = 0;
+ last_file_modified = -1;
+ }
+ if ((cmd[0] == 'x' || cmd[1] == 'q' || cmd[1] == 'n' ||
+ cmd[0] == 'X' || cmd[1] == 'Q' || cmd[1] == 'N')
+ && l == ch) {
+ editing = 0;
+ }
}
-#ifdef CONFIG_FEATURE_VI_READONLY
- vc3:;
-#endif /* CONFIG_FEATURE_VI_READONLY */
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_READONLY
+ vc3:;
+#endif
+#if ENABLE_FEATURE_VI_YANKMARK
} else if (strncasecmp((char *) cmd, "yank", i) == 0) { // yank lines
if (b < 0) { // no addr given- use defaults
q = begin_line(dot); // assume .,. for the range
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 */
+#endif
} else {
// cmd unknown
ni((Byte *) cmd);
vc1:
dot = bound_dot(dot); // make sure "dot" is valid
return;
-#ifdef CONFIG_FEATURE_VI_SEARCH
+#if ENABLE_FEATURE_VI_SEARCH
colon_s_fail:
psb(":s expression missing delimiters");
#endif
}
+#endif /* FEATURE_VI_COLON */
+
static void Hit_Return(void)
{
char c;
;
redraw(TRUE); // force redraw all
}
-#endif /* CONFIG_FEATURE_VI_COLON */
//----- Synchronize the cursor to Dot --------------------------
static void sync_cursor(Byte * 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 *beg_cur; // begin and end of "d" line
+ Byte *end_scr; // begin and end of screen
Byte *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) {
{
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
{
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
// 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
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
p = end_line(p);
if (*p == '\n' && p < end - 1)
p++; // step to next line
- return (p);
+ return p;
}
//----- Text Information Routines ------------------------------
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
if (*q == '\n')
cnt++;
}
- return (cnt);
+ return cnt;
}
static Byte *find_line(int li) // find begining of line #li
for (q = text; li > 1; li--) {
q = next_line(q);
}
- return (q);
+ return q;
}
//----- Dot Movement Routines ----------------------------------
co++; // display as ^X, use 2 columns
}
} while (++co <= l && p++ < end);
- return (p);
+ return p;
}
static void dot_next(void)
p = text;
indicate_error('2');
}
- return (p);
+ return p;
}
//----- Helper Utility Routines --------------------------------
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)
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
+#if ENABLE_FEATURE_VI_SEARCH
static int mycmp(Byte * s1, Byte * s2, int len)
{
int i;
i = strncmp((char *) s1, (char *) s2, len);
-#ifdef CONFIG_FEATURE_VI_SETOPTS
+#if ENABLE_FEATURE_VI_SETOPTS
if (ignorecase) {
i = strncasecmp((char *) s1, (char *) 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
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);
+ return NULL;
#else /*REGEX_SEARCH */
char *q;
struct re_pattern_buffer preg;
} 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'
{
c = get_one_char();
*p = c;
p++;
- file_modified = TRUE; // has the file been modified
+ file_modified++; // has the file been modified
} else if (c == 27) { // Is this an ESC?
cmd_mode = 0;
cmdcnt = 0;
end_cmd_q(); // stop adding to q
- strcpy((char *) status_buffer, " "); // clear the status buffer
+ last_status_cksum = 0; // force status update
if ((p[-1] != '\n') && (dot>text)) {
p--;
}
- } else if (c == erase_char) { // Is this a BS
+ } else if (c == erase_char || c == 8 || c == 127) { // Is this a BS
// 123456789
if ((p[-1] != '\n') && (dot>text)) {
p--;
p = text_hole_delete(p, p); // shrink buffer 1 char
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
- // also rmove char from last_modifying_cmd
- if (last_modifying_cmd != 0 && strlen((char *) last_modifying_cmd) > 0) {
- Byte *q;
-
- q = last_modifying_cmd;
- q[strlen((char *) q) - 1] = '\0'; // erase BS
- q[strlen((char *) q) - 1] = '\0'; // erase prev char
- }
-#endif /* CONFIG_FEATURE_VI_DOT_CMD */
}
} else {
// insert a char into text[]
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);
}
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'
p = text_hole_make(p, 1);
if (p != 0) {
*p = c;
- file_modified = TRUE; // has the file been modified
+ file_modified++; // has the file been modified
p++;
}
- return (p);
+ return p;
}
static Byte find_range(Byte ** start, Byte ** stop, Byte c)
q = dot;
} else if (strchr("wW", c)) {
do_cmd(c); // execute movement cmd
- // if we are at the next word's first char
- // step back one char
- // but check the possibilities when it is true
+ // if we are at the next word's first char
+ // step back one char
+ // but check the possibilities when it is true
if (dot > text && ((isspace(dot[-1]) && !isspace(dot[0]))
- || (ispunct(dot[-1]) && !ispunct(dot[0]))
- || (isalnum(dot[-1]) && !isalnum(dot[0]))))
- dot--; // move back off of next word
+ || (ispunct(dot[-1]) && !ispunct(dot[0]))
+ || (isalnum(dot[-1]) && !isalnum(dot[0]))))
+ dot--; // move back off of next word
if (dot > text && *dot == '\n')
dot--; // stay off NL
q = dot;
*stop = p;
}
dot = save_dot;
- return (c);
+ return c;
}
static int st_test(Byte * p, int type, int dir, Byte * tested)
test = ((isalnum(c)) || c == '_');
}
*tested = c;
- return (test);
+ return test;
}
static Byte *skip_thing(Byte * p, int linecnt, int dir, int type)
break;
p += dir; // move to next char
}
- return (p);
+ return p;
}
// find matching char of pair () [] {}
}
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)
{
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
}
memset(p, ' ', size); // clear new hole
end = end + size; // adjust the new END
- file_modified = TRUE; // has the file been modified
+ file_modified++; // has the file been modified
thm0:
- return (p);
+ return p;
}
// close a hole in text[]
dest = end - 1; // make sure dest in below end-1
if (end <= text)
dest = end = text; // keep pointers valid
- file_modified = TRUE; // has the file been modified
+ file_modified++; // has the file been modified
thd0:
- return (dest);
+ return dest;
}
// copy text into register, then delete text.
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
);
}
}
}
-#ifdef CONFIG_FEATURE_VI_DOT_CMD
+#if ENABLE_FEATURE_VI_DOT_CMD
static void start_new_cmd_q(Byte c)
{
// release old cmd
free(last_modifying_cmd);
// get buffer for new cmd
- last_modifying_cmd = (Byte *) xmalloc(BUFSIZ);
+ last_modifying_cmd = xmalloc(BUFSIZ);
memset(last_modifying_cmd, '\0', BUFSIZ); // clear new cmd queue
// if there is a current cmd count put it in the buffer first
if (cmdcnt > 0)
- sprintf((char *) last_modifying_cmd, "%d", cmdcnt);
- // save char c onto queue
- last_modifying_cmd[strlen((char *) last_modifying_cmd)] = c;
+ sprintf((char *) last_modifying_cmd, "%d%c", cmdcnt, c);
+ else // just save char c onto queue
+ last_modifying_cmd[0] = c;
adding2q = 1;
- return;
}
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_COLON) || defined(CONFIG_FEATURE_VI_CRASHME)
+#if ENABLE_FEATURE_VI_YANKMARK \
+ || (ENABLE_FEATURE_VI_COLON && ENABLE_FEATURE_VI_SEARCH) \
+ || ENABLE_FEATURE_VI_CRASHME
static Byte *string_insert(Byte * p, Byte * s) // insert the string at 'p'
{
int cnt, i;
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
+#if ENABLE_FEATURE_VI_YANKMARK
static Byte *text_yank(Byte * p, Byte * q, int dest) // copy text into a register
{
Byte *t;
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
reg[dest] = t;
- return (p);
+ return p;
}
static Byte what_reg(void)
{
Byte c;
- int i;
- i = 0;
c = 'D'; // default to D-reg
if (0 <= YDreg && YDreg <= 25)
c = 'a' + (Byte) YDreg;
c = 'D';
if (YDreg == 27)
c = 'U';
- return (c);
+ return c;
}
static void check_context(Byte cmd)
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
{
}
//----- Come here when we get a window resize signal ---------
-#ifdef CONFIG_FEATURE_VI_USE_SIGNALS
-static void winch_sig(int sig)
+#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 continue signal -------------------
-static void cont_sig(int sig)
+static void cont_sig(int sig ATTRIBUTE_UNUSED)
{
rawmode(); // terminal to "raw"
- *status_buffer = '\0'; // clear the status buffer
+ last_status_cksum = 0; // force status update
redraw(TRUE); // re-draw the screen
signal(SIGTSTP, suspend_sig);
}
//----- Come here when we get a Suspend signal -------------------
-static void suspend_sig(int sig)
+static void suspend_sig(int sig ATTRIBUTE_UNUSED)
{
place_cursor(rows - 1, 0, FALSE); // go to bottom of screen
clear_to_eol(); // Erase to end of line
//----- 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)
- longjmp(restart, 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(SIGIOT, 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
{
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);
}
-static Byte readbuffer[BUFSIZ];
+#define readbuffer bb_common_bufsiz1
+
static int readed_for_parse;
//----- IO Routines --------------------------------------------
readed_for_parse -= n;
memmove(readbuffer, readbuffer + n, BUFSIZ - n);
(void) alarm(3); // we are done waiting for input, turn alarm ON
- return (c);
+ return c;
}
//----- IO Routines --------------------------------------------
-static Byte get_one_char()
+static Byte get_one_char(void)
{
static Byte 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()
}
}
}
-#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 Byte *obufp = NULL;
strcpy((char *) buf, (char *) prompt);
- *status_buffer = '\0'; // clear the status buffer
+ 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(prompt); // write out the :, /, or ? prompt
+ write1((char *) prompt); // write out the :, /, or ? prompt
for (i = strlen((char *) buf); i < BUFSIZ;) {
c = get_one_char(); // read user input
if (c == '\n' || c == '\r' || c == 27)
break; // is this end of input
- if (c == erase_char) { // user wants to erase prev char
+ if (c == erase_char || c == 8 || c == 127) {
+ // user wants to erase prev char
i--; // backup to prev char
buf[i] = '\0'; // erase the char
buf[i + 1] = '\0'; // null terminate buffer
}
refresh(FALSE);
free(obufp);
- obufp = (Byte *) bb_xstrdup((char *) buf);
- return (obufp);
+ obufp = (Byte *) xstrdup((char *) buf);
+ return obufp;
}
static int file_size(const Byte * fn) // what is the byte size of "fn"
struct stat st_buf;
int cnt, sr;
- if (fn == 0 || strlen(fn) <= 0)
- return (-1);
+ if (fn == 0 || strlen((char *)fn) <= 0)
+ return -1;
cnt = -1;
sr = stat((char *) fn, &st_buf); // see if file exists
if (sr >= 0) {
cnt = (int) st_buf.st_size;
}
- return (cnt);
+ return cnt;
}
static int file_insert(Byte * fn, Byte * p, int size)
int fd, cnt;
cnt = -1;
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
readonly = FALSE;
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#endif
if (fn == 0 || strlen((char*) fn) <= 0) {
psbs("No filename given");
goto fi0;
}
// see if we can open the file
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
if (vi_readonly) goto fi1; // do not try write-mode
#endif
fd = open((char *) fn, O_RDWR); // assume read & write
if (fd < 0) {
// could not open for writing- maybe file is read only
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_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");
+ psbs("\"%s\" %s", fn, "cannot open file");
goto fi0;
}
-#ifdef CONFIG_FEATURE_VI_READONLY
+#if ENABLE_FEATURE_VI_READONLY
// got the file- read-only
readonly = TRUE;
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#endif
}
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 = TRUE;
+ file_modified++;
fi0:
- return (cnt);
+ return cnt;
}
static int file_write(Byte * fn, Byte * first, Byte * last)
if (fn == 0) {
psbs("No current filename");
- return (-1);
+ return -2;
}
charcnt = 0;
// FIXIT- use the correct umask()
fd = open((char *) 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) {
charcnt = 0;
}
close(fd);
- return (charcnt);
+ return charcnt;
}
//----- Terminal Drawing ---------------------------------------
{
char cm1[BUFSIZ];
char *cm;
-#ifdef CONFIG_FEATURE_VI_OPTIMIZE_CURSOR
+#if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR
char cm2[BUFSIZ];
Byte *screenp;
// char cm3[BUFSIZ];
int Rrow= last_row;
-#endif /* CONFIG_FEATURE_VI_OPTIMIZE_CURSOR */
+#endif
memset(cm1, '\0', BUFSIZ - 1); // clear the buffer
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
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, screenp, col);
+ strncat(cm2, (char* )screenp, col);
//----- 3. Try some other way of moving cursor
//---------------------------------------------
} /* 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
}
//----- Erase from cursor to end of line -----------------------
-static void clear_to_eol()
+static void clear_to_eol(void)
{
write1(Ceol); // Erase from cursor to end of line
}
//----- Erase from cursor to end of screen -----------------------
-static void clear_to_eos()
+static void clear_to_eos(void)
{
write1(Ceos); // Erase from cursor to end of screen
}
//----- Start standout mode ------------------------------------
-static void standout_start() // send "start reverse video" sequence
+static void standout_start(void) // send "start reverse video" sequence
{
write1(SOs); // Start reverse video mode
}
//----- End standout mode --------------------------------------
-static void standout_end() // send "end reverse video" sequence
+static void standout_end(void) // send "end reverse video" sequence
{
write1(SOn); // End reverse video mode
}
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 {
//----- Screen[] Routines --------------------------------------
//----- Erase the Screen[] memory ------------------------------
-static void screen_erase()
+static void screen_erase(void)
{
memset(screen, ' ', screensize); // clear new screen
}
+static int bufsum(unsigned char *buf, int count)
+{
+ int sum = 0;
+ unsigned char *e = buf + count;
+ while (buf < e)
+ sum += *buf++;
+ return sum;
+}
+
//----- Draw the status line at bottom of the screen -------------
static void show_status_line(void)
{
- static int last_cksum;
- int l, cnt, cksum;
+ int cnt = 0, cksum = 0;
- cnt = strlen((char *) status_buffer);
- for (cksum= l= 0; l < cnt; l++) { cksum += (int)(status_buffer[l]); }
- // don't write the status line unless it changes
- if (cnt > 0 && last_cksum != cksum) {
- last_cksum= cksum; // remember if we have seen this line
+ // either we already have an error or status message, or we
+ // create one.
+ if (!have_status_msg) {
+ cnt = format_edit_status();
+ cksum = bufsum(status_buffer, cnt);
+ }
+ 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(status_buffer);
+ write1((char*)status_buffer);
clear_to_eol();
+ if (have_status_msg) {
+ if (((int)strlen((char*)status_buffer) - (have_status_msg - 1)) >
+ (columns - 1) ) {
+ have_status_msg = 0;
+ Hit_Return();
+ }
+ have_status_msg = 0;
+ }
place_cursor(crow, ccol, FALSE); // put cursor back in correct place
}
+ fflush(stdout);
}
//----- format the status buffer, the bottom line of screen ------
-// print status buffer, with STANDOUT mode
+// format status buffer, with STANDOUT mode
static void psbs(const char *format, ...)
{
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);
+ vsprintf((char *) status_buffer + strlen((char *) status_buffer), format, args);
strcat((char *) status_buffer, SOn); // Terminal standout mode off
va_end(args);
+ have_status_msg = 1 + sizeof(SOs) + sizeof(SOn) - 2;
+
return;
}
-// print status buffer
+// format status buffer
static void psb(const char *format, ...)
{
va_list args;
va_start(args, format);
vsprintf((char *) status_buffer, format, args);
va_end(args);
+
+ have_status_msg = 1;
+
return;
}
psbs("\'%s\' is not implemented", buf);
}
-static void edit_status(void) // show file status on status line
+static int format_edit_status(void) // show file status on status line
{
- int cur, tot, percent;
+ int cur, percent, ret, trunc_at;
+ static int tot;
+
+ // 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
+ // once every MAXINT editing operations.)
+ // it would be nice to do a similar optimization here -- if
+ // we haven't done a motion that could have changed which line
+ // we're on, then we shouldn't have to do this count_lines()
cur = count_lines(text, dot);
- tot = count_lines(text, end - 1);
+
+ // reduce counting -- the total lines can't have
+ // changed if we haven't done any edits.
+ if (file_modified != last_file_modified) {
+ tot = cur + count_lines(dot, end - 1) - 1;
+ last_file_modified = file_modified;
+ }
+
// current line percent
// ------------- ~~ ----------
// total lines 100
cur = tot = 0;
percent = 100;
}
- psb("\"%s\""
-#ifdef CONFIG_FEATURE_VI_READONLY
- "%s"
-#endif /* CONFIG_FEATURE_VI_READONLY */
- "%s line %d of %d --%d%%--",
+
+ trunc_at = columns < STATUS_BUFFER_LEN-1 ?
+ columns : STATUS_BUFFER_LEN-1;
+
+ ret = snprintf((char *) 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
- ((vi_readonly || readonly) ? " [Read only]" : ""),
-#endif /* CONFIG_FEATURE_VI_READONLY */
+#if ENABLE_FEATURE_VI_READONLY
+ ((vi_readonly || readonly) ? " [Read-only]" : ""),
+#endif
(file_modified ? " [modified]" : ""),
cur, tot, percent);
+
+ if (ret >= 0 && ret < trunc_at)
+ return ret; /* it all fit */
+
+ return trunc_at; /* had to truncate */
}
//----- Force refresh of all Lines -----------------------------
place_cursor(0, 0, FALSE); // put cursor in correct place
clear_to_eos(); // tel terminal to erase display
screen_erase(); // erase the internal screen buffer
+ last_status_cksum = 0; // force status update
refresh(full_screen); // this will redraw the entire display
+ show_status_line();
}
//----- Format a text[] line into a buffer ---------------------
int li, changed;
Byte buf[MAX_SCR_COLS];
Byte *tp, *sp; // pointer into text[] and screen[]
-#ifdef CONFIG_FEATURE_VI_OPTIMIZE_CURSOR
+#if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR
int last_li= -2; // last line that changed- for optimizing cursor movement
-#endif /* CONFIG_FEATURE_VI_OPTIMIZE_CURSOR */
+#endif
-#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);
sync_cursor(dot, &crow, &ccol); // where cursor will be (on "dot")
tp = screenbegin; // index into text[] of top line
// 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 = sp+cs;
+ char *out = (char*)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;
p = q = save_dot = msg = buf; // quiet the compiler
memset(buf, '\0', 9); // clear buf
+ show_status_line();
+
/* if this is a cursor key, skip these checks */
switch (c) {
case VI_K_UP:
//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
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;
dot_scroll(rows - 2, 1);
break;
case 7: // ctrl-G show current status
- edit_status();
+ last_status_cksum = 0; // force status update
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 8: // ctrl-H- move left (This may be ERASE char)
+ case 127: // DEL- move left (This may be ERASE char)
if (cmdcnt-- > 1) {
do_cmd(c);
} // repeat cnt
clear_to_eos(); // tel terminal to erase display
(void) mysleep(10);
screen_erase(); // erase the internal screen buffer
+ last_status_cksum = 0; // force status update
refresh(TRUE); // this will redraw the entire display
break;
case 13: // Carriage Return ^M
indicate_error(c);
cmd_mode = 0; // stop insrting
end_cmd_q();
- *status_buffer = '\0'; // clear status buffer
+ last_status_cksum = 0; // force status update
break;
case ' ': // move right
case 'l': // move right
} // 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);
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) {
//
// dont separate these two commands. 'f' depends on ';'
//
- //**** fall thru to ... 'i'
+ //**** fall thru to ... ';'
case ';': // ;- look at rest of line for last forward char
if (cmdcnt-- > 1) {
do_cmd(';');
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 = (Byte *) xstrdup((char *) 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;
if (strlen((char *) 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 = (Byte *) xstrdup((char *) q);
goto dc3; // now find the pattern
}
// user changed mind and erased the "/"- do nothing
msg = (Byte *) "Pattern not found";
}
dc2:
- psbs("%s", msg);
+ if (*msg) psbs("%s", msg);
break;
case '{': // {- move backward paragraph
q = char_search(dot, (Byte *) "\n\n", BACK, FULL);
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
+#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);
} else {
editing = 0;
}
- } else if (strncasecmp((char *) p, "write", cnt) == 0 ||
- strncasecmp((char *) p, "wq", cnt) == 0 ||
- strncasecmp((char *) p, "x", cnt) == 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) {
cnt = file_write(cfn, text, end - 1);
- file_modified = FALSE;
- psb("\"%s\" %dL, %dC", cfn, count_lines(text, end - 1), cnt);
- if (p[0] == 'x' || p[1] == 'q') {
- editing = 0;
+ if (cnt < 0) {
+ if (cnt == -1)
+ psbs("Write error: %s", strerror(errno));
+ } else {
+ 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') {
+ editing = 0;
+ }
}
} else if (strncasecmp((char *) p, "file", cnt) == 0 ) {
- edit_status(); // show current file status
+ last_status_cksum = 0; // force status update
} else if (sscanf((char *) p, "%d", &j) > 0) {
dot = find_line(j); // go to line # j
dot_skip_over_ws();
} else { // unrecognised cmd
ni((Byte *) p);
}
-#endif /* CONFIG_FEATURE_VI_COLON */
+#endif /* !FEATURE_VI_COLON */
break;
case '<': // <- Left shift something
case '>': // >- Right shift something
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
case VI_K_INSERT: // Cursor Key Insert
dc_i:
cmd_mode = 1; // start insrting
- psb("-- Insert --");
break;
case 'J': // J- join current and next lines together
if (cmdcnt-- > 2) {
dot_end(); // move to NL
if (dot < end - 1) { // make sure not last char in text[]
*dot++ = ' '; // replace NL with space
+ file_modified++;
while (isblnk(*dot)) { // delete leading WS
dot_delete();
}
case 'R': // R- continuous Replace char
dc5:
cmd_mode = 2;
- psb("-- Replace --");
break;
case 'X': // X- delete char before dot
case 'x': // x- delete the current char
indicate_error(c);
break;
}
- if (file_modified
-#ifdef CONFIG_FEATURE_VI_READONLY
- && ! vi_readonly
- && ! readonly
-#endif /* CONFIG_FEATURE_VI_READONLY */
- ) {
+ if (file_modified) {
+#if ENABLE_FEATURE_VI_READONLY
+ if (vi_readonly || readonly) {
+ psbs("\"%s\" File is read only", cfn);
+ break;
+ }
+#endif
cnt = file_write(cfn, text, end - 1);
- if (cnt == (end - 1 - text + 1)) {
+ if (cnt < 0) {
+ if (cnt == -1)
+ psbs("Write error: %s", strerror(errno));
+ } else if (cnt == (end - 1 - text + 1)) {
editing = 0;
}
} else {
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 (c == 'd') {
strcpy((char *) buf, "Delete");
}
-#ifdef CONFIG_FEATURE_VI_YANKMARK
+#if ENABLE_FEATURE_VI_YANKMARK
if (c == 'y' || c == 'Y') {
strcpy((char *) buf, "Yank");
}
}
psb("%s %d lines (%d chars) using [%c]",
buf, cnt, strlen((char *) reg[YDreg]), what_reg());
-#endif /* CONFIG_FEATURE_VI_YANKMARK */
+#endif
end_cmd_q(); // stop adding to q
}
break;
c1 = get_one_char(); // get the replacement char
if (*dot != '\n') {
*dot = c1;
- file_modified = TRUE; // has the file been modified
+ file_modified++; // has the file been modified
}
end_cmd_q(); // stop adding to q
break;
case 't': // t- move to char prior to next x
- last_forward_char = get_one_char();
- do_cmd(';');
- if (*dot == last_forward_char)
- dot_left();
- last_forward_char= 0;
+ last_forward_char = get_one_char();
+ do_cmd(';');
+ if (*dot == last_forward_char)
+ dot_left();
+ last_forward_char= 0;
break;
case 'w': // w- forward a word
if (cmdcnt-- > 1) {
} // repeat cnt
if (islower(*dot)) {
*dot = toupper(*dot);
- file_modified = TRUE; // has the file been modified
+ file_modified++; // has the file been modified
} else if (isupper(*dot)) {
*dot = tolower(*dot);
- file_modified = TRUE; // has the file been modified
+ file_modified++; // has the file been modified
}
dot_right();
end_cmd_q(); // stop adding to q
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
}
return;
}
-#endif /* CONFIG_FEATURE_VI_CRASHME */
+#endif
projects / oweals / busybox.git / blobdiff