diff options
Diffstat (limited to 'editors')
| -rw-r--r-- | editors/vi.c | 869 |
1 files changed, 445 insertions, 424 deletions
diff --git a/editors/vi.c b/editors/vi.c index 77967fb..bd169b0 100644 --- a/editors/vi.c +++ b/editors/vi.c @@ -87,7 +87,9 @@ enum { 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 @@ -112,21 +114,21 @@ 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 char *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; // pointers to the user data in memory -static Byte *screen; // pointer to the virtual screen buffer +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 Byte *screenbegin; // index into text[], of top line on the screen -static Byte *dot; // where all the action takes place +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' #if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR static int last_row; // where the cursor was last moved to @@ -139,38 +141,38 @@ static int my_pid; #endif #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" +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_DOT_CMD || ENABLE_FEATURE_VI_YANKMARK -static Byte *modifying_cmds; // cmds that modify text[] +static char *modifying_cmds; // cmds that modify text[] #endif #if ENABLE_FEATURE_VI_READONLY static int vi_readonly, readonly; #endif #if ENABLE_FEATURE_VI_YANKMARK -static Byte *reg[28]; // named register a-z, "D", and "U" 0-25,26,27 +static char *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; +static char *mark[28]; // user marks points somewhere in text[]- a-z and previous context '' +static char *context_start, *context_end; #endif #if ENABLE_FEATURE_VI_SEARCH -static Byte *last_search_pattern; // last pattern from a '/' or '?' search -#endif - - -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 +static char *last_search_pattern; // last pattern from a '/' or '?' search +#endif + + +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 @@ -180,27 +182,27 @@ static void dot_prev(void); // move dot to prev line 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 *, int); +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); @@ -211,10 +213,10 @@ static void flash(int); // flash the terminal screen 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 @@ -222,13 +224,13 @@ static void Indicate_Error(void); // use flash or beep to indicate error static void Hit_Return(void); #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" +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 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 +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 @@ -236,21 +238,21 @@ static void suspend_sig(int); // catch ctrl-Z static void catch_sig(int); // catch ctrl-C and alarm time-outs #endif #if ENABLE_FEATURE_VI_DOT_CMD -static void start_new_cmd_q(Byte); // new queue for command +static void start_new_cmd_q(char); // new queue for command static void end_cmd_q(void); // stop saving input chars #else #define end_cmd_q() ((void)0) #endif #if ENABLE_FEATURE_VI_SETOPTS -static void showmatching(Byte *); // show the matching pair () [] {} +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 Byte *string_insert(Byte *, Byte *); // insert the string at 'p' +static char *string_insert(char *, char *); // insert the string at 'p' #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 +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(); @@ -278,10 +280,10 @@ int vi_main(int argc, char **argv) my_pid = getpid(); #endif #if ENABLE_FEATURE_VI_CRASHME - (void) srand((long) my_pid); + srand((long) my_pid); #endif - status_buffer = (Byte *)STATUS_BUFFER; + status_buffer = STATUS_BUFFER; last_status_cksum = 0; #if ENABLE_FEATURE_VI_READONLY @@ -298,7 +300,7 @@ int vi_main(int argc, char **argv) } // init the yank regs #endif #if ENABLE_FEATURE_VI_DOT_CMD || ENABLE_FEATURE_VI_YANKMARK - modifying_cmds = (Byte *) "aAcCdDiIJoOpPrRsxX<>~"; // cmds modifying text[] + modifying_cmds = (char *) "aAcCdDiIJoOpPrRsxX<>~"; // cmds modifying text[] #endif // 1- process $HOME/.exrc file (not inplemented yet) @@ -349,7 +351,7 @@ int vi_main(int argc, char **argv) for (; optind < argc; optind++) { editing = 1; // 0=exit, 1=one file, 2+ =many files free(cfn); - cfn = (Byte *) xstrdup(argv[optind]); + cfn = xstrdup(argv[optind]); edit_file(cfn); } } @@ -358,22 +360,22 @@ int vi_main(int argc, char **argv) return 0; } -static void edit_file(Byte * fn) +static void edit_file(char * fn) { - Byte c; + char c; int cnt, size, ch; #if ENABLE_FEATURE_VI_USE_SIGNALS int sig; #endif #if ENABLE_FEATURE_VI_YANKMARK - static Byte *cur_line; + static char *cur_line; #endif rawmode(); rows = 24; columns = 80; - ch= -1; + ch = -1; if (ENABLE_FEATURE_VI_WIN_RESIZE) get_terminal_width_height(0, &columns, &rows); new_screen(rows, columns); // get memory for virtual screen @@ -383,10 +385,10 @@ static void edit_file(Byte * fn) 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, cnt); } 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; @@ -422,7 +424,7 @@ static void edit_file(Byte * fn) #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 redraw(FALSE); // dont force every col re-draw @@ -455,8 +457,7 @@ static void edit_file(Byte * fn) 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); } } @@ -473,7 +474,8 @@ static void edit_file(Byte * fn) // 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 @@ -501,16 +503,16 @@ static void edit_file(Byte * fn) //----- The Colon commands ------------------------------------- #if ENABLE_FEATURE_VI_COLON -static Byte *get_one_address(Byte * p, int *addr) // get colon addr, if present +static char *get_one_address(char * p, int *addr) // get colon addr, if present { int st; - Byte *q; + char *q; #if ENABLE_FEATURE_VI_YANKMARK - Byte c; + char c; #endif #if ENABLE_FEATURE_VI_SEARCH - Byte *pat, buf[BUFSIZ]; + char *pat, buf[BUFSIZ]; #endif *addr = -1; // assume no addr @@ -526,7 +528,7 @@ static Byte *get_one_address(Byte * p, int *addr) // get colon addr, if present 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 } @@ -541,7 +543,7 @@ static Byte *get_one_address(Byte * p, int *addr) // get colon addr, if present *q++ = *p; *q = '\0'; } - pat = (Byte *) xstrdup((char *) buf); // save copy of pattern + pat = xstrdup(buf); // save copy of pattern if (*p == '/') p++; q = char_search(dot, pat, FORWARD, FULL); @@ -555,7 +557,7 @@ static Byte *get_one_address(Byte * p, int *addr) // get colon addr, if present 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 @@ -564,7 +566,7 @@ static Byte *get_one_address(Byte * p, int *addr) // get colon addr, if present 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 @@ -586,33 +588,34 @@ static Byte *get_address(Byte *p, int *b, int *e) // get two colon addrs, if pre // get SECOND addr, if present p = get_one_address(p, e); } -ga0: + ga0: while (isblnk(*p)) p++; // skip over trailing spaces return p; } #if ENABLE_FEATURE_VI_SET && ENABLE_FEATURE_VI_SETOPTS -static void setops(const Byte *args, const char *opname, int flg_no, +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]; + char c, *orig_buf, *buf1, *q, *r; + char *fn, cmd[BUFSIZ], args[BUFSIZ]; int i, l, li, ch, b, e; int useforce = FALSE, forced = FALSE; struct stat st_buf; @@ -632,7 +635,7 @@ static void colon(Byte * buf) // :!<cmd> // run <cmd> then return // - if (strlen((char *) buf) <= 0) + if (!buf[0]) goto vc1; if (*buf == ':') buf++; // move past the ':' @@ -662,8 +665,8 @@ static void colon(Byte * buf) // 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 ! @@ -685,7 +688,7 @@ static void colon(Byte * buf) 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 @@ -693,31 +696,31 @@ static void colon(Byte * buf) } } #if ENABLE_FEATURE_ALLOW_EXEC - else if (strncmp((char *) cmd, "!", 1) == 0) { // run a cmd + 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 + alarm(3); // done waiting for input } #endif - else if (strncmp((char *) cmd, "=", i) == 0) { // where is the address + 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; sr= 0; // don't edit, if the current file has been modified @@ -725,10 +728,10 @@ static void colon(Byte * buf) 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) { + } else if (cfn && cfn[0]) { // no user supplied name- use the current filename fn= cfn; goto vc5; @@ -739,13 +742,14 @@ static void colon(Byte * buf) } // 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; @@ -759,7 +763,7 @@ static void colon(Byte * buf) // There is a read-able regular file // make this the current file - q = (Byte *) xstrdup((char *) fn); // save the cfn + q = xstrdup(fn); // save the cfn free(cfn); // free the old name cfn = q; // remember new cfn @@ -773,8 +777,8 @@ static void colon(Byte * buf) 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; @@ -803,20 +807,20 @@ static void colon(Byte * buf) ((vi_readonly || readonly) ? " [Read only]" : ""), #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 *) 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 @@ -824,7 +828,7 @@ static void colon(Byte * buf) 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); @@ -845,10 +849,10 @@ static void colon(Byte * buf) 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) @@ -858,8 +862,9 @@ static void colon(Byte * buf) 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') { @@ -884,9 +889,9 @@ static void colon(Byte * buf) 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; } @@ -897,7 +902,7 @@ static void colon(Byte * buf) if (b != 0) q = next_line(q); #if ENABLE_FEATURE_VI_READONLY - l= readonly; // remember current files' status + l = readonly; // remember current files' status #endif ch = file_insert(fn, q, file_size(fn)); #if ENABLE_FEATURE_VI_READONLY @@ -922,7 +927,7 @@ static void colon(Byte * buf) 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 { @@ -959,7 +964,7 @@ static void colon(Byte * buf) goto vc2; } #if ENABLE_FEATURE_VI_SETOPTS - argp = (char *)args; + argp = args; while (*argp) { if (strncasecmp(argp, "no", 2) == 0) i = 2; // ":set noautoindent" @@ -969,7 +974,7 @@ static void colon(Byte * buf) setops(argp, "showmatch ", i, "ic", VI_SHOWMATCH); /* tabstopXXXX */ if (strncasecmp(argp + i, "tabstop=%d ", 7) == 0) { - sscanf(strchr(argp + i, '='), "=%d", &ch); + sscanf(strchr(argp + i, '='), "tabstop=%d" + 7, &ch); if (ch > 0 && ch < columns - 1) tabstop = ch; } @@ -981,8 +986,8 @@ static void colon(Byte * buf) #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; + } 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 @@ -991,10 +996,10 @@ static void colon(Byte * buf) 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 @@ -1010,17 +1015,17 @@ static void colon(Byte * buf) 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 } } @@ -1028,14 +1033,15 @@ static void colon(Byte * buf) q = next_line(ls); } #endif /* FEATURE_VI_SEARCH */ - } else if (strncasecmp((char *) cmd, "version", i) == 0) { // show software version + } else if (strncasecmp(cmd, "version", i) == 0) { // show software version 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) { + } 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; } #if ENABLE_FEATURE_VI_READONLY @@ -1080,7 +1086,7 @@ static void colon(Byte * buf) vc3:; #endif #if ENABLE_FEATURE_VI_YANKMARK - } else if (strncasecmp((char *) cmd, "yank", i) == 0) { // yank lines + } 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); @@ -1088,17 +1094,17 @@ static void colon(Byte * buf) 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()); + 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; #if ENABLE_FEATURE_VI_SEARCH -colon_s_fail: + colon_s_fail: psb(":s expression missing delimiters"); #endif } @@ -1118,11 +1124,11 @@ 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; // begin and end of "d" line - Byte *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 @@ -1133,7 +1139,7 @@ static void sync_cursor(Byte * d, int *row, int *col) // "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 @@ -1207,21 +1213,21 @@ static void sync_cursor(Byte * d, int *row, int *col) } //----- 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; } -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; } -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 @@ -1231,7 +1237,7 @@ static inline Byte *dollar_line(Byte * p) // return pointer to just before NL li 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) @@ -1240,7 +1246,7 @@ static Byte *prev_line(Byte * p) // return pointer first char prev line 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) @@ -1249,9 +1255,9 @@ static Byte *next_line(Byte * p) // return pointer first char next line } //----- Text Information Routines ------------------------------ -static Byte *end_screen(void) +static char *end_screen(void) { - Byte *q; + char *q; int cnt; // find new bottom line @@ -1262,9 +1268,9 @@ static Byte *end_screen(void) 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 @@ -1281,9 +1287,9 @@ static int count_lines(Byte * start, Byte * stop) // count line from start to st 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); @@ -1314,7 +1320,7 @@ static void dot_end(void) 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; @@ -1345,7 +1351,7 @@ static void dot_prev(void) static void dot_scroll(int cnt, int dir) { - Byte *q; + char *q; for (; cnt > 0; cnt--) { if (dir < 0) { @@ -1376,10 +1382,10 @@ static void dot_skip_over_ws(void) 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; @@ -1405,7 +1411,7 @@ static Byte *bound_dot(Byte * p) // make sure text[0] <= P < "end" * DO NOT COUNT NEWLINE AS WHITESPACE */ -static Byte *new_screen(int ro, int co) +static char *new_screen(int ro, int co) { int li; @@ -1421,7 +1427,7 @@ static Byte *new_screen(int ro, int co) 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 @@ -1433,26 +1439,27 @@ static Byte *new_text(int size) } #if ENABLE_FEATURE_VI_SEARCH -static int mycmp(Byte * s1, Byte * s2, int len) +static int mycmp(const char * s1, const char * s2, int len) { int i; - i = strncmp((char *) s1, (char *) s2, len); + 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 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) @@ -1474,7 +1481,7 @@ static Byte *char_search(Byte * p, Byte * pat, int dir, int range) // search for } // pattern not found return NULL; -#else /*REGEX_SEARCH */ +#else /* REGEX_SEARCH */ char *q; struct re_pattern_buffer preg; int i; @@ -1501,7 +1508,7 @@ static Byte *char_search(Byte * p, Byte * pat, int dir, int range) // search for // 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); @@ -1528,7 +1535,7 @@ static Byte *char_search(Byte * p, Byte * pat, int dir, int range) // search for p = 0; i = 0; // return NULL if pattern not found } - cs1: + cs1: if (dir == FORWARD) { p = p + i; } else { @@ -1539,7 +1546,7 @@ static Byte *char_search(Byte * p, Byte * pat, int dir, int range) // search for } #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 @@ -1554,7 +1561,7 @@ static Byte *char_insert(Byte * p, Byte c) // insert the char c at 'p' 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 @@ -1565,7 +1572,7 @@ static Byte *char_insert(Byte * p, Byte c) // insert the char c at 'p' } } else { // insert a char into text[] - Byte *sp; // "save p" + char *sp; // "save p" if (c == 13) c = '\n'; // translate \r to \n @@ -1576,7 +1583,7 @@ static Byte *char_insert(Byte * p, Byte c) // insert the char c at 'p' 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++) { @@ -1588,7 +1595,7 @@ static Byte *char_insert(Byte * p, Byte c) // insert the char c at '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) { @@ -1599,9 +1606,9 @@ static Byte *stupid_insert(Byte * p, Byte c) // stupidly insert the char c at '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; @@ -1656,9 +1663,9 @@ static Byte find_range(Byte ** start, Byte ** stop, Byte 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; @@ -1690,9 +1697,9 @@ static int st_test(Byte * p, int type, int dir, Byte * tested) 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 @@ -1708,9 +1715,9 @@ static Byte *skip_thing(Byte * p, int linecnt, int dir, int type) } // 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 = ')'; @@ -1755,9 +1762,9 @@ static Byte *find_pair(Byte * p, Byte c) #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 @@ -1768,7 +1775,7 @@ static void showmatching(Byte * p) 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); } @@ -1776,9 +1783,9 @@ static void showmatching(Byte * p) #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) @@ -1792,14 +1799,14 @@ static Byte *text_hole_make(Byte * p, int size) // at "p", make a 'size' byte ho memset(p, ' ', size); // clear new hole end = end + size; // adjust the new END file_modified++; // has the file been modified - thm0: + 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 @@ -1821,23 +1828,23 @@ static Byte *text_hole_delete(Byte * p, Byte * q) // delete "p" thru "q", inclus 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: + 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) { @@ -1902,42 +1909,42 @@ static void show_help(void) ); } -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); 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, "$"); - } + strcat(buf, SOs); + if (*s == '\n') + strcat(buf, "$"); } } #if ENABLE_FEATURE_VI_DOT_CMD -static void start_new_cmd_q(Byte c) +static void start_new_cmd_q(char c) { // release old cmd free(last_modifying_cmd); @@ -1946,7 +1953,7 @@ static void start_new_cmd_q(Byte c) 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%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; @@ -1964,13 +1971,13 @@ static void end_cmd_q(void) #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' +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++; @@ -1983,9 +1990,9 @@ static Byte *string_insert(Byte * p, Byte * s) // insert the string at 'p' #endif #if ENABLE_FEATURE_VI_YANKMARK -static Byte *text_yank(Byte * p, Byte * q, int dest) // copy text into a register +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 @@ -1998,18 +2005,18 @@ static Byte *text_yank(Byte * p, Byte * q, int dest) // copy text into a registe free(t); // if already a yank register, free it 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; } -static Byte what_reg(void) +static char what_reg(void) { - Byte c; + char c; 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) @@ -2017,13 +2024,13 @@ static Byte what_reg(void) 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 @@ -2034,9 +2041,9 @@ static void check_context(Byte cmd) } } -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] @@ -2053,7 +2060,7 @@ static inline Byte *swap_context(Byte * p) // goto new context for '' command ma } #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'); } @@ -2117,7 +2124,7 @@ static void suspend_sig(int sig ATTRIBUTE_UNUSED) static void catch_sig(int sig) { signal(SIGINT, catch_sig); - if(sig) + if (sig) longjmp(restart, sig); } #endif /* FEATURE_VI_USE_SIGNALS */ @@ -2139,59 +2146,59 @@ static int mysleep(int hund) // sleep for 'h' 1/100 seconds 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 }; #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); if (n < 0) { @@ -2207,21 +2214,21 @@ static Byte readit(void) // read (maybe cursor) key from stdin 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 + // 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 + // read the rest of the ESC string int r = read(0, (void *) (readbuffer + n), BUFSIZ - n); if (r > 0) { n += r; @@ -2231,16 +2238,16 @@ static Byte readit(void) // read (maybe cursor) key from stdin 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; @@ -2248,7 +2255,7 @@ static Byte readit(void) // read (maybe cursor) key from stdin 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; } @@ -2258,14 +2265,14 @@ static Byte readit(void) // read (maybe cursor) key from stdin // 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 + 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; #if ENABLE_FEATURE_VI_DOT_CMD // ! adding2q && ioq == 0 read() @@ -2291,7 +2298,7 @@ static Byte get_one_char(void) // adding STDIN chars to q c = readit(); // get the users input if (last_modifying_cmd != 0) { - int len = strlen((char *) last_modifying_cmd); + int len = strlen(last_modifying_cmd); if (len + 1 >= BUFSIZ) { psbs("last_modifying_cmd overrun"); } else { @@ -2306,20 +2313,22 @@ static Byte get_one_char(void) 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[BUFSIZ]; + 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 < BUFSIZ) { c = get_one_char(); // read user input if (c == '\n' || c == '\r' || c == 27) break; // is this end of input @@ -2341,26 +2350,26 @@ static Byte *get_input_line(Byte * prompt) // get input line- use "status line" } refresh(FALSE); free(obufp); - obufp = (Byte *) xstrdup((char *) buf); + 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; - if (fn == 0 || strlen((char *)fn) <= 0) + if (!fn || !fn[0]) return -1; cnt = -1; - sr = stat((char *) fn, &st_buf); // see if file exists + sr = stat(fn, &st_buf); // see if file exists if (sr >= 0) { cnt = (int) st_buf.st_size; } return cnt; } -static int file_insert(Byte * fn, Byte * p, int size) +static int file_insert(char * fn, char * p, int size) { int fd, cnt; @@ -2368,7 +2377,7 @@ static int file_insert(Byte * fn, Byte * p, int size) #if ENABLE_FEATURE_VI_READONLY readonly = FALSE; #endif - if (fn == 0 || strlen((char*) fn) <= 0) { + if (!fn || !fn[0]) { psbs("No filename given"); goto fi0; } @@ -2390,13 +2399,13 @@ static int file_insert(Byte * fn, Byte * p, int size) #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 + fd = open(fn, O_RDWR); // assume read & write if (fd < 0) { // could not open for writing- maybe file is read only #if ENABLE_FEATURE_VI_READONLY - fi1: + fi1: #endif - fd = open((char *) fn, O_RDONLY); // try read-only + fd = open(fn, O_RDONLY); // try read-only if (fd < 0) { psbs("\"%s\" %s", fn, "cannot open file"); goto fi0; @@ -2420,11 +2429,11 @@ static int file_insert(Byte * fn, Byte * p, int size) } if (cnt >= size) file_modified++; - fi0: + fi0: return cnt; } -static int file_write(Byte * fn, Byte * first, Byte * last) +static int file_write(char * fn, char * first, char * last) { int fd, cnt, charcnt; @@ -2434,14 +2443,14 @@ static int file_write(Byte * fn, Byte * first, Byte * last) } 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; 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; } @@ -2468,9 +2477,9 @@ static void place_cursor(int row, int col, int opti) char *cm; #if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR char cm2[BUFSIZ]; - Byte *screenp; + char *screenp; // char cm3[BUFSIZ]; - int Rrow= last_row; + int Rrow = last_row; #endif memset(cm1, '\0', BUFSIZ - 1); // clear the buffer @@ -2481,9 +2490,10 @@ static void place_cursor(int row, int col, int opti) 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; #if ENABLE_FEATURE_VI_OPTIMIZE_CURSOR //----- find the minimum # of chars to move cursor ------------- @@ -2506,15 +2516,15 @@ static void place_cursor(int row, int col, int opti) 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; } */ @@ -2552,7 +2562,7 @@ static void flash(int h) { standout_start(); // send "start reverse video" sequence redraw(TRUE); - (void) mysleep(h); + mysleep(h); standout_end(); // send "end reverse video" sequence redraw(TRUE); } @@ -2577,12 +2587,13 @@ static void screen_erase(void) 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; } @@ -2600,10 +2611,10 @@ static void show_status_line(void) 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(); @@ -2622,9 +2633,9 @@ 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); - 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; @@ -2636,15 +2647,15 @@ static void psb(const char *format, ...) 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; } -static void ni(Byte * s) // display messages +static void ni(const char * s) // display messages { - Byte buf[BUFSIZ]; + char buf[BUFSIZ]; print_literal(buf, s); psbs("\'%s\' is not implemented", buf); @@ -2652,9 +2663,10 @@ static void ni(Byte * s) // display messages 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 @@ -2685,14 +2697,14 @@ static int format_edit_status(void) // show file status on status line trunc_at = columns < STATUS_BUFFER_LEN-1 ? columns : STATUS_BUFFER_LEN-1; - ret = snprintf((char *) status_buffer, trunc_at+1, + 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"), + (cfn != 0 ? cfn : "No file"), #if ENABLE_FEATURE_VI_READONLY ((vi_readonly || readonly) ? " [Read-only]" : ""), #endif @@ -2717,12 +2729,12 @@ static void redraw(int full_screen) } //----- 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++) { + for (co = 0; co < MAX_SCR_COLS; co++) { c= ' '; // assume blank if (li > 0 && co == 0) { c = '~'; // not first line, assume Tilde @@ -2745,9 +2757,9 @@ static void format_line(Byte *dest, Byte *src, int li) } } else { dest[co++] = '^'; - if(c == 127) + if (c == 127) c = '?'; - else + else c += '@'; // make it visible } } @@ -2767,11 +2779,12 @@ static void format_line(Byte *dest, Byte *src, int li) 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[] + 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 + int last_li = -2; // last line that changed- for optimizing cursor movement #endif if (ENABLE_FEATURE_VI_WIN_RESIZE) @@ -2801,7 +2814,7 @@ static void refresh(int full_screen) } // 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; @@ -2819,7 +2832,7 @@ static void refresh(int full_screen) // if horz offset has changed, force a redraw if (offset != old_offset) { - re0: + re0: changed = TRUE; } @@ -2851,8 +2864,8 @@ static void refresh(int full_screen) // 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) { putchar(*out); @@ -2898,14 +2911,15 @@ static void refresh(int full_screen) //--------------------------------------------------------------------- //----- 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(); @@ -2949,7 +2963,7 @@ static void do_cmd(Byte c) goto dc1; } -key_cmd_mode: + key_cmd_mode: switch (c) { //case 0x01: // soh //case 0x09: // ht @@ -3002,7 +3016,7 @@ key_cmd_mode: buf[1] = c + '@'; buf[2] = '\0'; } - ni((Byte *) buf); + ni(buf); end_cmd_q(); // stop adding to q case 0x00: // nul- ignore break; @@ -3053,7 +3067,7 @@ key_cmd_mode: 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 @@ -3103,7 +3117,7 @@ key_cmd_mode: 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 @@ -3140,7 +3154,7 @@ key_cmd_mode: 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 } @@ -3203,7 +3217,8 @@ key_cmd_mode: 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++; @@ -3223,7 +3238,7 @@ key_cmd_mode: // Stuff the last_modifying_cmd back into stdin // and let it be re-executed. if (last_modifying_cmd != 0) { - ioq = ioq_start = (Byte *) xstrdup((char *) last_modifying_cmd); + ioq = ioq_start = xstrdup(last_modifying_cmd); } break; #endif @@ -3233,12 +3248,12 @@ key_cmd_mode: 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 *) xstrdup((char *) q); + last_search_pattern = xstrdup(q); goto dc3; // now find the pattern } // user changed mind and erased the "/"- do nothing @@ -3261,9 +3276,9 @@ key_cmd_mode: 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] == '/') { @@ -3274,11 +3289,11 @@ key_cmd_mode: 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 @@ -3289,24 +3304,25 @@ key_cmd_mode: 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 } @@ -3329,26 +3345,28 @@ key_cmd_mode: } break; case ':': // :- the colon mode commands - p = get_input_line((Byte *) ":"); // get input line- use "status line" + p = get_input_line(":"); // get input line- use "status line" #if ENABLE_FEATURE_VI_COLON colon(p); // execute the command #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) @@ -3357,18 +3375,19 @@ key_cmd_mode: 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 /* !FEATURE_VI_COLON */ break; @@ -3377,7 +3396,7 @@ key_cmd_mode: 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 @@ -3386,16 +3405,16 @@ key_cmd_mode: // 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 @@ -3462,7 +3481,7 @@ key_cmd_mode: //**** 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 @@ -3511,7 +3530,7 @@ key_cmd_mode: goto dc_i; break; case 'R': // R- continuous Replace char - dc5: + dc5: cmd_mode = 2; break; case 'X': // X- delete char before dot @@ -3632,24 +3651,24 @@ key_cmd_mode: 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"); } #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()); + buf, cnt, strlen(reg[YDreg]), what_reg()); #endif end_cmd_q(); // stop adding to q } @@ -3739,10 +3758,10 @@ key_cmd_mode: 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 @@ -3770,14 +3789,15 @@ static int Ip = 97; // Insert 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", @@ -3835,7 +3855,7 @@ static void crash_dummy() // 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 @@ -3897,54 +3917,55 @@ static void crash_dummy() 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]; 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); @@ -3957,7 +3978,7 @@ static void crash_test() } 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; |