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vi: fix the bug where vi never grows the edit buffer.

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vi: do G trick on it

function                                             old     new   delta
place_cursor                                         264     276     +12
next_tabstop                                          22      34     +12
mycmp                                                 44      52      +8
status_line                                           34      40      +6
yank_delete                                           89      92      +3
what_reg                                              34      37      +3
suspend_sig                                           63      66      +3
find_range                                           493     496      +3
redraw                                               104     106      +2
cont_sig                                              63      65      +2
Indicate_Error                                        59      61      +2
status_line_bold                                      71      72      +1
file_insert                                          327     328      +1
vi_setops                                              1       -      -1
...
cmdcnt                                                 4       -      -4
chars_to_parse                                         4       -      -4
ccol                                                   4       -      -4
dot_scroll                                            88      79      -9
stupid_insert                                         28      18     -10
winch_sig                                            102      91     -11
char_insert                                          353     336     -17
readit                                               354     336     -18
get_one_char                                         128     110     -18
init_text_buffer                                     171     152     -19
text_hole_delete                                     132     112     -20
edit_file                                            940     918     -22
get_input_line                                       198     168     -30
show_status_line                                     449     408     -41
colon                                               3112    3067     -45
vi_main                                              312     250     -62
refresh                                             1077     974    -103
do_cmd                                              4818    4483    -335
------------------------------------------------------------------------------
(add/remove: 0/38 grow/shrink: 13/20 up/down: 58/-889)       Total: -831 bytes
   text    data     bss     dec     hex filename
 809566     612    7044  817222   c7846 busybox_old
 808794     611    6924  816329   c74c9 busybox_unstripped

   text    data     bss     dec     hex filename
  18888       1     122   19011    4a43 busybox.t8/editors/vi.o
  18116       0       0   18116    46c4 busybox.t9/editors/vi.o
This commit is contained in:
Denis Vlasenko 2008-06-20 20:20:54 +00:00
parent b67004b2ae
commit b175946ba4
1 changed files with 153 additions and 120 deletions
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273
editors/vi.c
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@ -112,11 +112,19 @@ enum {
S_END_ALNUM = 5, // used in skip_thing() for moving "dot" S_END_ALNUM = 5, // used in skip_thing() for moving "dot"
}; };
/* vi.c expects chars to be unsigned. */ /* vi.c expects chars to be unsigned. */
/* busybox build system provides that, but it's better */ /* busybox build system provides that, but it's better */
/* to audit and fix the source */ /* to audit and fix the source */
static smallint vi_setops; 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
int text_size; // size of the allocated buffer
/* the rest */
smallint vi_setops;
#define VI_AUTOINDENT 1 #define VI_AUTOINDENT 1
#define VI_SHOWMATCH 2 #define VI_SHOWMATCH 2
#define VI_IGNORECASE 4 #define VI_IGNORECASE 4
@ -127,83 +135,76 @@ static smallint vi_setops;
/* indicate error with beep or flash */ /* indicate error with beep or flash */
#define err_method (vi_setops & VI_ERR_METHOD) #define err_method (vi_setops & VI_ERR_METHOD)
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 unsigned rows, columns; // the terminal screen is this size
static int crow, ccol; // cursor is on Crow x Ccol
static int offset; // chars scrolled off the screen to the left
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 char *current_filename; // current 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 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'
#if ENABLE_FEATURE_VI_READONLY #if ENABLE_FEATURE_VI_READONLY
//static smallint vi_readonly, readonly; smallint readonly_mode;
static smallint readonly_mode = 0;
#define SET_READONLY_FILE(flags) ((flags) |= 0x01) #define SET_READONLY_FILE(flags) ((flags) |= 0x01)
#define SET_READONLY_MODE(flags) ((flags) |= 0x02) #define SET_READONLY_MODE(flags) ((flags) |= 0x02)
#define UNSET_READONLY_FILE(flags) ((flags) &= 0xfe) #define UNSET_READONLY_FILE(flags) ((flags) &= 0xfe)
#else #else
#define readonly_mode 0 #define SET_READONLY_FILE(flags) ((void)0)
#define SET_READONLY_FILE(flags) #define SET_READONLY_MODE(flags) ((void)0)
#define SET_READONLY_MODE(flags) #define UNSET_READONLY_FILE(flags) ((void)0)
#define UNSET_READONLY_FILE(flags)
#endif #endif
smallint editing; // >0 while we are editing a file
// [code audit says "can be 0 or 1 only"]
smallint cmd_mode; // 0=command 1=insert 2=replace
int file_modified; // buffer contents changed (counter, not flag!)
int last_file_modified; // = -1;
int fn_start; // index of first cmd line file name
int save_argc; // how many file names on cmd line
int cmdcnt; // repetition count
unsigned rows, columns; // the terminal screen is this size
int crow, ccol; // cursor is on Crow x Ccol
int offset; // chars scrolled off the screen to the left
int have_status_msg; // is default edit status needed?
// [don't make smallint!]
int last_status_cksum; // hash of current status line
char *current_filename;
char *screenbegin; // index into text[], of top line on the screen
char *screen; // pointer to the virtual screen buffer
int screensize; // and its size
int tabstop;
char erase_char; // the users erase character
char last_input_char; // last char read from user
char last_forward_char; // last char searched for with 'f'
#if ENABLE_FEATURE_VI_DOT_CMD #if ENABLE_FEATURE_VI_DOT_CMD
static smallint adding2q; // are we currently adding user input to q smallint adding2q; // are we currently adding user input to q
static char *last_modifying_cmd; // [MAX_INPUT_LEN] last modifying cmd for "." int lmc_len; // length of last_modifying_cmd
static smallint lmc_len; // length of last_modifying_cmd char *ioq, *ioq_start; // pointer to string for get_one_char to "read"
static char *ioq, *ioq_start; // pointer to string for get_one_char to "read"
#endif #endif
#if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR #if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR
static int last_row; // where the cursor was last moved to int last_row; // where the cursor was last moved to
#endif #endif
#if ENABLE_FEATURE_VI_USE_SIGNALS || ENABLE_FEATURE_VI_CRASHME #if ENABLE_FEATURE_VI_USE_SIGNALS || ENABLE_FEATURE_VI_CRASHME
static int my_pid; int my_pid;
#endif #endif
#if ENABLE_FEATURE_VI_DOT_CMD || ENABLE_FEATURE_VI_YANKMARK #if ENABLE_FEATURE_VI_DOT_CMD || ENABLE_FEATURE_VI_YANKMARK
static char *modifying_cmds; // cmds that modify text[] char *modifying_cmds; // cmds that modify text[]
#endif #endif
#if ENABLE_FEATURE_VI_SEARCH #if ENABLE_FEATURE_VI_SEARCH
static char *last_search_pattern; // last pattern from a '/' or '?' search char *last_search_pattern; // last pattern from a '/' or '?' search
#endif #endif
int chars_to_parse;
/* former statics */
#if ENABLE_FEATURE_VI_YANKMARK
char *edit_file__cur_line;
#endif
int refresh__old_offset;
int format_edit_status__tot;
/* Moving biggest data to malloced space... */ /* a few references only */
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
int text_size; // size of the allocated buffer
#if ENABLE_FEATURE_VI_YANKMARK #if ENABLE_FEATURE_VI_YANKMARK
int YDreg, Ureg; // default delete register and orig line for "U" int YDreg, Ureg; // default delete register and orig line for "U"
char *reg[28]; // named register a-z, "D", and "U" 0-25,26,27 char *reg[28]; // named register a-z, "D", and "U" 0-25,26,27
char *mark[28]; // user marks points somewhere in text[]- a-z and previous context '' char *mark[28]; // user marks points somewhere in text[]- a-z and previous context ''
char *context_start, *context_end; char *context_start, *context_end;
#endif #endif
/* a few references only */
#if ENABLE_FEATURE_VI_USE_SIGNALS #if ENABLE_FEATURE_VI_USE_SIGNALS
sigjmp_buf restart; // catch_sig() sigjmp_buf restart; // catch_sig()
#endif #endif
struct termios term_orig, term_vi; // remember what the cooked mode was struct termios term_orig, term_vi; // remember what the cooked mode was
#if ENABLE_FEATURE_VI_COLON #if ENABLE_FEATURE_VI_COLON
char *initial_cmds[3]; // currently 2 entries, NULL terminated char *initial_cmds[3]; // currently 2 entries, NULL terminated
#endif #endif
@ -214,6 +215,12 @@ struct globals {
#else #else
char readbuffer[32]; char readbuffer[32];
#endif #endif
#define STATUS_BUFFER_LEN 200
char status_buffer[STATUS_BUFFER_LEN]; // messages to the user
#if ENABLE_FEATURE_VI_DOT_CMD
char last_modifying_cmd[MAX_INPUT_LEN]; // last modifying cmd for "."
#endif
char get_input_line__buf[MAX_INPUT_LEN]; /* former static */
char scr_out_buf[MAX_SCR_COLS + MAX_TABSTOP * 2]; char scr_out_buf[MAX_SCR_COLS + MAX_TABSTOP * 2];
}; };
@ -223,6 +230,50 @@ struct globals {
#define end (G.end ) #define end (G.end )
#define dot (G.dot ) #define dot (G.dot )
#define reg (G.reg ) #define reg (G.reg )
#define vi_setops (G.vi_setops )
#define editing (G.editing )
#define cmd_mode (G.cmd_mode )
#define file_modified (G.file_modified )
#define last_file_modified (G.last_file_modified )
#define fn_start (G.fn_start )
#define save_argc (G.save_argc )
#define cmdcnt (G.cmdcnt )
#define rows (G.rows )
#define columns (G.columns )
#define crow (G.crow )
#define ccol (G.ccol )
#define offset (G.offset )
#define status_buffer (G.status_buffer )
#define have_status_msg (G.have_status_msg )
#define last_status_cksum (G.last_status_cksum )
#define current_filename (G.current_filename )
#define screen (G.screen )
#define screensize (G.screensize )
#define screenbegin (G.screenbegin )
#define tabstop (G.tabstop )
#define erase_char (G.erase_char )
#define last_input_char (G.last_input_char )
#define last_forward_char (G.last_forward_char )
#if ENABLE_FEATURE_VI_READONLY
#define readonly_mode (G.readonly_mode )
#else
#define readonly_mode 0 readonly_mode )
#endif
#define adding2q (G.adding2q )
#define lmc_len (G.lmc_len )
#define ioq (G.ioq )
#define ioq_start (G.ioq_start )
#define last_row (G.last_row )
#define my_pid (G.my_pid )
#define modifying_cmds (G.modifying_cmds )
#define last_search_pattern (G.last_search_pattern)
#define chars_to_parse (G.chars_to_parse )
#define edit_file__cur_line (G.edit_file__cur_line)
#define refresh__old_offset (G.refresh__old_offset)
#define format_edit_status__tot (G.format_edit_status__tot)
#define YDreg (G.YDreg ) #define YDreg (G.YDreg )
#define Ureg (G.Ureg ) #define Ureg (G.Ureg )
#define mark (G.mark ) #define mark (G.mark )
@ -234,10 +285,15 @@ struct globals {
#define initial_cmds (G.initial_cmds ) #define initial_cmds (G.initial_cmds )
#define readbuffer (G.readbuffer ) #define readbuffer (G.readbuffer )
#define scr_out_buf (G.scr_out_buf ) #define scr_out_buf (G.scr_out_buf )
#define last_modifying_cmd (G.last_modifying_cmd )
#define get_input_line__buf (G.get_input_line__buf)
#define INIT_G() do { \ #define INIT_G() do { \
SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \ SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
last_file_modified = -1; \
} while (0) } while (0)
static int init_text_buffer(char *); // init from file or create new static int init_text_buffer(char *); // init from file or create new
static void edit_file(char *); // edit one file static void edit_file(char *); // edit one file
static void do_cmd(char); // execute a command static void do_cmd(char); // execute a command
@ -355,22 +411,15 @@ int vi_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int vi_main(int argc, char **argv) int vi_main(int argc, char **argv)
{ {
int c; int c;
RESERVE_CONFIG_BUFFER(STATUS_BUFFER, STATUS_BUFFER_LEN);
INIT_G();
#if ENABLE_FEATURE_VI_USE_SIGNALS || ENABLE_FEATURE_VI_CRASHME #if ENABLE_FEATURE_VI_USE_SIGNALS || ENABLE_FEATURE_VI_CRASHME
my_pid = getpid(); my_pid = getpid();
#endif #endif
INIT_G();
#if ENABLE_FEATURE_VI_CRASHME #if ENABLE_FEATURE_VI_CRASHME
srand((long) my_pid); srand((long) my_pid);
#endif #endif
status_buffer = STATUS_BUFFER;
last_status_cksum = 0;
text = NULL;
#ifdef NO_SUCH_APPLET_YET #ifdef NO_SUCH_APPLET_YET
/* If we aren't "vi", we are "view" */ /* If we aren't "vi", we are "view" */
if (ENABLE_FEATURE_VI_READONLY && applet_name[2]) { if (ENABLE_FEATURE_VI_READONLY && applet_name[2]) {
@ -379,9 +428,6 @@ int vi_main(int argc, char **argv)
#endif #endif
vi_setops = VI_AUTOINDENT | VI_SHOWMATCH | VI_IGNORECASE; vi_setops = VI_AUTOINDENT | VI_SHOWMATCH | VI_IGNORECASE;
#if ENABLE_FEATURE_VI_YANKMARK
memset(reg, 0, sizeof(reg)); // init the yank regs
#endif
#if ENABLE_FEATURE_VI_DOT_CMD || ENABLE_FEATURE_VI_YANKMARK #if ENABLE_FEATURE_VI_DOT_CMD || ENABLE_FEATURE_VI_YANKMARK
modifying_cmds = (char *) "aAcCdDiIJoOpPrRsxX<>~"; // cmds modifying text[] modifying_cmds = (char *) "aAcCdDiIJoOpPrRsxX<>~"; // cmds modifying text[]
#endif #endif
@ -417,7 +463,6 @@ int vi_main(int argc, char **argv)
case 'H': case 'H':
show_help(); show_help();
/* fall through */ /* fall through */
default: default:
bb_show_usage(); bb_show_usage();
return 1; return 1;
@ -451,9 +496,7 @@ static int init_text_buffer(char *fn)
/* allocate/reallocate text buffer */ /* allocate/reallocate text buffer */
free(text); free(text);
text_size = size * 2; text_size = size + 10240;
if (text_size < 10240)
text_size = 10240; // have a minimum size for new files
screenbegin = dot = end = text = xzalloc(text_size); screenbegin = dot = end = text = xzalloc(text_size);
if (fn != current_filename) { if (fn != current_filename) {
@ -479,15 +522,14 @@ static int init_text_buffer(char *fn)
static void edit_file(char *fn) static void edit_file(char *fn)
{ {
#if ENABLE_FEATURE_VI_YANKMARK
#define cur_line edit_file__cur_line
#endif
char c; char c;
int size; int size;
#if ENABLE_FEATURE_VI_USE_SIGNALS #if ENABLE_FEATURE_VI_USE_SIGNALS
int sig; int sig;
#endif #endif
#if ENABLE_FEATURE_VI_YANKMARK
static char *cur_line;
#endif
editing = 1; // 0 = exit, 1 = one file, 2 = multiple files editing = 1; // 0 = exit, 1 = one file, 2 = multiple files
rawmode(); rawmode();
@ -606,6 +648,7 @@ static void edit_file(char *fn)
place_cursor(rows, 0, FALSE); // go to bottom of screen place_cursor(rows, 0, FALSE); // go to bottom of screen
clear_to_eol(); // Erase to end of line clear_to_eol(); // Erase to end of line
cookmode(); cookmode();
#undef cur_line
} }
//----- The Colon commands ------------------------------------- //----- The Colon commands -------------------------------------
@ -1611,7 +1654,7 @@ static char *char_insert(char * p, char c) // insert the char c at 'p'
c = get_one_char(); c = get_one_char();
*p = c; *p = c;
p++; p++;
file_modified++; // has the file been modified file_modified++;
} else if (c == 27) { // Is this an ESC? } else if (c == 27) { // Is this an ESC?
cmd_mode = 0; cmd_mode = 0;
cmdcnt = 0; cmdcnt = 0;
@ -1654,12 +1697,9 @@ static char *char_insert(char * p, char c) // insert the char c at 'p'
static char *stupid_insert(char * p, char 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); p = text_hole_make(p, 1);
if (p != 0) { *p = c;
*p = c; //file_modified++; - done by text_hole_make()
file_modified++; // has the file been modified return p + 1;
p++;
}
return p;
} }
static int find_range(char ** start, char ** stop, char c) static int find_range(char ** start, char ** stop, char c)
@ -1842,24 +1882,21 @@ static void showmatching(char *p)
// open a hole in text[] // open a hole in text[]
static char *text_hole_make(char * 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
{ {
char *src, *dest;
int cnt;
if (size <= 0) if (size <= 0)
goto thm0; return p;
src = p; end += size; // adjust the new END
dest = p + size; if (end >= (text + text_size)) {
cnt = end - src; // the rest of buffer char *new_text;
if ( ((end + size) >= (text + text_size)) // TODO: realloc here text_size += end - (text + text_size) + 10240;
|| memmove(dest, src, cnt) != dest) { new_text = xrealloc(text, text_size);
status_line_bold("can't create room for new characters"); screenbegin = new_text + (screenbegin - text);
p = NULL; dot = new_text + (dot - text);
goto thm0; end = new_text + (end - text);
p = new_text + (p - text);
text = new_text;
} }
memset(p, ' ', size); // clear new hole memset(p, ' ', size); // clear new hole
end += size; // adjust the new END file_modified++;
file_modified++; // has the file been modified
thm0:
return p; return p;
} }
@ -1885,16 +1922,14 @@ static char *text_hole_delete(char * p, char * q) // delete "p" through "q", inc
goto thd0; goto thd0;
if (src >= end) if (src >= end)
goto thd_atend; // just delete the end of the buffer goto thd_atend; // just delete the end of the buffer
if (memmove(dest, src, cnt) != dest) { memmove(dest, src, cnt);
status_line_bold("can't delete the character");
}
thd_atend: thd_atend:
end = end - hole_size; // adjust the new END end = end - hole_size; // adjust the new END
if (dest >= end) if (dest >= end)
dest = end - 1; // make sure dest in below end-1 dest = end - 1; // make sure dest in below end-1
if (end <= text) if (end <= text)
dest = end = text; // keep pointers valid dest = end = text; // keep pointers valid
file_modified++; // has the file been modified file_modified++;
thd0: thd0:
return dest; return dest;
} }
@ -1973,8 +2008,6 @@ static void show_help(void)
static void start_new_cmd_q(char c) static void start_new_cmd_q(char c)
{ {
// get buffer for new cmd // get buffer for new cmd
if (!last_modifying_cmd)
last_modifying_cmd = xzalloc(MAX_INPUT_LEN);
// if there is a current cmd count put it in the buffer first // if there is a current cmd count put it in the buffer first
if (cmdcnt > 0) if (cmdcnt > 0)
lmc_len = sprintf(last_modifying_cmd, "%d%c", cmdcnt, c); lmc_len = sprintf(last_modifying_cmd, "%d%c", cmdcnt, c);
@ -2164,8 +2197,6 @@ static int mysleep(int hund) // sleep for 'h' 1/100 seconds
return safe_poll(pfd, 1, hund*10) > 0; return safe_poll(pfd, 1, hund*10) > 0;
} }
static int chars_to_parse;
//----- IO Routines -------------------------------------------- //----- IO Routines --------------------------------------------
static char readit(void) // read (maybe cursor) key from stdin static char readit(void) // read (maybe cursor) key from stdin
{ {
@ -2300,13 +2331,11 @@ static char get_one_char(void)
} else { } else {
// adding STDIN chars to q // adding STDIN chars to q
c = readit(); // get the users input c = readit(); // get the users input
if (last_modifying_cmd != NULL) { if (lmc_len >= MAX_INPUT_LEN - 1) {
if (lmc_len >= MAX_INPUT_LEN - 1) { status_line_bold("last_modifying_cmd overrun");
status_line_bold("last_modifying_cmd overrun"); } else {
} else { // add new char to q
// add new char to q last_modifying_cmd[lmc_len++] = c;
last_modifying_cmd[lmc_len++] = c;
}
} }
} }
#else #else
@ -2318,13 +2347,12 @@ static char get_one_char(void)
// Get input line (uses "status line" area) // Get input line (uses "status line" area)
static char *get_input_line(const char *prompt) static char *get_input_line(const char *prompt)
{ {
static char *buf; // [MAX_INPUT_LEN] // char [MAX_INPUT_LEN]
#define buf get_input_line__buf
char c; char c;
int i; int i;
if (!buf) buf = xmalloc(MAX_INPUT_LEN);
strcpy(buf, prompt); strcpy(buf, prompt);
last_status_cksum = 0; // force status update last_status_cksum = 0; // force status update
place_cursor(rows - 1, 0, FALSE); // go to Status line, bottom of screen place_cursor(rows - 1, 0, FALSE); // go to Status line, bottom of screen
@ -2350,6 +2378,7 @@ static char *get_input_line(const char *prompt)
} }
refresh(FALSE); refresh(FALSE);
return buf; return buf;
#undef buf
} }
static int file_size(const char *fn) // what is the byte size of "fn" static int file_size(const char *fn) // what is the byte size of "fn"
@ -2451,7 +2480,7 @@ static int file_write(char * fn, char * first, char * last)
ftruncate(fd, charcnt); ftruncate(fd, charcnt);
if (charcnt == cnt) { if (charcnt == cnt) {
// good write // good write
//file_modified = FALSE; // the file has not been modified //file_modified = FALSE;
} else { } else {
charcnt = 0; charcnt = 0;
} }
@ -2701,8 +2730,10 @@ static void not_implemented(const char *s)
// show file status on status line // show file status on status line
static int format_edit_status(void) static int format_edit_status(void)
{ {
static int tot;
static const char cmd_mode_indicator[] ALIGN1 = "-IR-"; static const char cmd_mode_indicator[] ALIGN1 = "-IR-";
#define tot format_edit_status__tot
int cur, percent, ret, trunc_at; int cur, percent, ret, trunc_at;
// file_modified is now a counter rather than a flag. this // file_modified is now a counter rather than a flag. this
@ -2753,13 +2784,14 @@ static int format_edit_status(void)
return ret; /* it all fit */ return ret; /* it all fit */
return trunc_at; /* had to truncate */ return trunc_at; /* had to truncate */
#undef tot
} }
//----- Force refresh of all Lines ----------------------------- //----- Force refresh of all Lines -----------------------------
static void redraw(int full_screen) static void redraw(int full_screen)
{ {
place_cursor(0, 0, FALSE); // put cursor in correct place place_cursor(0, 0, FALSE); // put cursor in correct place
clear_to_eos(); // tel terminal to erase display clear_to_eos(); // tell terminal to erase display
screen_erase(); // erase the internal screen buffer screen_erase(); // erase the internal screen buffer
last_status_cksum = 0; // force status update last_status_cksum = 0; // force status update
refresh(full_screen); // this will redraw the entire display refresh(full_screen); // this will redraw the entire display
@ -2831,7 +2863,7 @@ static char* format_line(char *src /*, int li*/)
// //
static void refresh(int full_screen) static void refresh(int full_screen)
{ {
static int old_offset; #define old_offset refresh__old_offset
int li, changed; int li, changed;
char *tp, *sp; // pointer into text[] and screen[] char *tp, *sp; // pointer into text[] and screen[]
@ -2919,6 +2951,7 @@ static void refresh(int full_screen)
place_cursor(crow, ccol, TRUE); place_cursor(crow, ccol, TRUE);
old_offset = offset; old_offset = offset;
#undef old_offset
} }
//--------------------------------------------------------------------- //---------------------------------------------------------------------
@ -3276,7 +3309,7 @@ static void do_cmd(char c)
case '.': // .- repeat the last modifying command case '.': // .- repeat the last modifying command
// Stuff the last_modifying_cmd back into stdin // Stuff the last_modifying_cmd back into stdin
// and let it be re-executed. // and let it be re-executed.
if (last_modifying_cmd != NULL && lmc_len > 0) { if (lmc_len > 0) {
last_modifying_cmd[lmc_len] = 0; last_modifying_cmd[lmc_len] = 0;
ioq = ioq_start = xstrdup(last_modifying_cmd); ioq = ioq_start = xstrdup(last_modifying_cmd);
} }
@ -3750,7 +3783,7 @@ static void do_cmd(char c)
c1 = get_one_char(); // get the replacement char c1 = get_one_char(); // get the replacement char
if (*dot != '\n') { if (*dot != '\n') {
*dot = c1; *dot = c1;
file_modified++; // has the file been modified file_modified++;
} }
end_cmd_q(); // stop adding to q end_cmd_q(); // stop adding to q
break; break;
@ -3795,10 +3828,10 @@ static void do_cmd(char c)
} // repeat cnt } // repeat cnt
if (islower(*dot)) { if (islower(*dot)) {
*dot = toupper(*dot); *dot = toupper(*dot);
file_modified++; // has the file been modified file_modified++;
} else if (isupper(*dot)) { } else if (isupper(*dot)) {
*dot = tolower(*dot); *dot = tolower(*dot);
file_modified++; // has the file been modified file_modified++;
} }
dot_right(); dot_right();
end_cmd_q(); // stop adding to q end_cmd_q(); // stop adding to q