This is rather big change, but that is the only way to do this sort job. To
keep this change relatively understandable only moves global variables to a
state structure.
Signed-off-by: Sami Kerola <kerolasa@xxxxxx>
---
text-utils/more.c | 1316 +++++++++++++++++++++++----------------------
1 file changed, 672 insertions(+), 644 deletions(-)
diff --git a/text-utils/more.c b/text-utils/more.c
index 603c79003..03aae421f 100644
--- a/text-utils/more.c
+++ b/text-utils/more.c
@@ -85,11 +85,11 @@
#define VI "vi" /* found on the user's path */
-#define Fopen(s,m) (Currline = 0,file_pos=0,fopen(s,m))
-#define Ftell(f) file_pos
-#define Fseek(f,off) (file_pos=off,fseek(f,off,0))
-#define Getc(f) (++file_pos, getc(f))
-#define Ungetc(c,f) (--file_pos, ungetc(c,f))
+#define Fopen(s,m) (ctl->Currline = 0, ctl->file_pos=0, fopen(s,m))
+#define Ftell(f) ctl->file_pos
+#define Fseek(f,off) (ctl->file_pos=off, fseek(f, off, 0))
+#define Getc(f) (++ctl->file_pos, getc(f))
+#define Ungetc(c,f) (--ctl->file_pos, ungetc(c,f))
#define putcerr(c) fputc(c, stderr)
#define putserr(s) fputs(s, stderr)
#define putsout(s) fputs(s, stdout)
@@ -99,9 +99,9 @@
#define ERASEONECOLUMN(x) \
do { \
if (x) \
- putserr(BSB); \
+ putserr("\b \b"); \
else \
- putserr(BS); \
+ putserr("\b"); \
} while(0)
#define TBUFSIZ 1024
@@ -142,69 +142,83 @@
#define TERM_UNDERLINE_CHAR "uc"
#define TERM_UNDERLINE "ul"
-static struct termios otty, savetty0;
-static long file_pos, file_size;
-static int fnum, no_intty, no_tty;
-static int dum_opt, dlines;
-static void onquit(int), onsusp(int), chgwinsz(int), end_it(int);
-static int nscroll = SCROLL_LEN; /* Number of lines scrolled by 'd' */
-static int fold_opt = 1; /* Fold long lines */
-static int stop_opt = 1; /* Stop after form feeds */
-static int ssp_opt = 0; /* Suppress white space */
-static int ul_opt = 1; /* Underline as best we can */
-static int promptlen;
-static int Currline; /* Line we are currently at */
-static int startup = 1;
-static int firstf = 1;
-static int notell = 1;
-static int docrterase = 0;
-static int docrtkill = 0;
-static int bad_so; /* True if overwriting does not turn
- off standout */
-static int inwait, Pause, errors;
-static int within; /* true if we are within a file,
- false if we are between files */
-static int hard, dumb, noscroll, hardtabs, clreol, eatnl;
-static int catch_susp; /* We should catch the SIGTSTP signal */
-static char **fnames; /* The list of file names */
-static int nfiles; /* Number of files left to process */
-static char *shell; /* The name of the shell to use */
-static int shellp; /* A previous shell command exists */
-static sigjmp_buf restore;
-static char *Line; /* Line buffer */
-static size_t LineLen; /* size of Line buffer */
-static int Lpp = LINES_PER_PAGE; /* lines per page */
-static char *Clear; /* clear screen */
-static char *eraseln; /* erase line */
-static char *Senter, *Sexit; /* enter and exit standout mode */
-static char *ULenter, *ULexit; /* enter and exit underline mode */
-static char *chUL; /* underline character */
-static char *chBS; /* backspace character */
-static char *Home; /* go to home */
-static char *cursorm; /* cursor movement */
-static char cursorhome[40]; /* contains cursor movement to home */
-static char *EodClr; /* clear rest of screen */
-static int Mcol = NUM_COLUMNS; /* number of columns */
-static int Wrap = 1; /* set if automargins */
-static int soglitch; /* terminal has standout mode glitch */
-static int ulglitch; /* terminal has underline mode glitch */
-static int pstate = 0; /* current UL state */
-static int magic(FILE *, char *);
-static char *previousre; /* previous search() buf[] item */
-static struct {
- long chrctr, line;
-} context, screen_start;
-extern char PC; /* pad character */
-
-static char *BS = "\b";
-static char *BSB = "\b \b";
-static char *CARAT = "^";
-
-static char ch;
-static int lastcmd, lastarg, lastp;
-static int lastcolon;
-static char shell_line[SHELL_LINE];
-
+struct more_control {
+ struct termios otty; /* output terminal */
+ struct termios savetty0; /* original terminal settings */
+ long file_pos; /* file position */
+ long file_size; /* file size */
+ int fnum; /* argv[] position */
+ int dlines; /* screen size in lines */
+ int nscroll; /* number of lines scrolled by 'd' */
+ int promptlen; /* message prompt length */
+ int Currline; /* line we are currently at */
+ char **fnames; /* The list of file names */
+ int nfiles; /* Number of files left to process */
+ char *shell; /* name of the shell to use */
+ int shellp; /* does previous shell command exist */
+ sigjmp_buf restore; /* siglongjmp() destination */
+ char *Line; /* line buffer */
+ size_t LineLen; /* size of Line buffer */
+ int Lpp; /* lines per page */
+ char *Clear; /* clear screen */
+ char *eraseln; /* erase line */
+ char *Senter; /* enter standout mode */
+ char *Sexit; /* exit standout mode */
+ char *ULenter; /* enter underline mode */
+ char *ULexit; /* exit underline mode */
+ char *chUL; /* underline character */
+ char *chBS; /* backspace character */
+ char *Home; /* go to home */
+ char *cursorm; /* cursor movement */
+ char cursorhome[40]; /* contains cursor movement to home */
+ char *EodClr; /* clear rest of screen */
+ int Mcol; /* number of columns */
+ char *previousre; /* previous search() buf[] item */
+ struct {
+ long chrctr; /* row number */
+ long line; /* line number */
+ } context,
+ screen_start;
+ char ch;
+ int lastcmd; /* previous more key command */
+ int lastarg; /* previous key command argument */
+ int lastcolon; /* is a colon-prefixed key command */
+ char shell_line[SHELL_LINE];
+ char PC; /* pad character */
+ uint32_t
+ bad_so:1, /* true if overwriting does not turn off standout */
+ catch_susp:1, /* we should catch the SIGTSTP signal */
+ clreol:1, /* do not scroll, paint each screen from the top */
+ docrterase:1, /* is erase previous supported */
+ docrtkill:1, /* is erase input supported */
+ dumb:1, /* is terminal type known */
+ dum_opt:1, /* suppress bell */
+ eatnl:1, /* is newline ignored after 80 cols */
+ errors:1, /* is an error reported */
+ firstf:1, /* is the input file the first in list */
+ fold_opt:1, /* fold long lines */
+ hard:1, /* is this hard copy terminal (a printer or such) */
+ hardtabs:1, /* print spaces instead of '\t' */
+ inwait:1, /* is waiting user input */
+ lastp:1, /* run previous key command */
+ no_intty:1, /* is input in interactive mode */
+ noscroll:1, /* do not scroll, clear the screen and then display text */
+ notell:1, /* suppress quit dialog */
+ no_tty:1, /* is output in interactive mode */
+ Pause:1, /* is output paused */
+ pstate:1, /* current UL state */
+ soglitch:1, /* terminal has standout mode glitch */
+ ssp_opt:1, /* suppress white space */
+ startup:1, /* is startup completed */
+ stop_opt:1, /* stop after form feeds */
+ ulglitch:1, /* terminal has underline mode glitch */
+ ul_opt:1, /* underline as best we can */
+ within:1, /* true if we are within a file, false if we are between files */
+ Wrap:1; /* set if automargins */
+};
+
+/* FIXME: global_ctl is used in signal handlers. */
+struct more_control *global_ctl;
static void putstring(char *s)
{
@@ -240,7 +254,7 @@ static void __attribute__((__noreturn__)) usage(void)
}
-static void argscan(char *s)
+static void argscan(struct more_control *ctl, char *s)
{
int seen_num = 0;
@@ -257,31 +271,31 @@ static void argscan(char *s)
case '8':
case '9':
if (!seen_num) {
- dlines = 0;
+ ctl->dlines = 0;
seen_num = 1;
}
- dlines = dlines * 10 + *s - '0';
+ ctl->dlines = ctl->dlines * 10 + *s - '0';
break;
case 'd':
- dum_opt = 1;
+ ctl->dum_opt = 1;
break;
case 'l':
- stop_opt = 0;
+ ctl->stop_opt = 0;
break;
case 'f':
- fold_opt = 0;
+ ctl->fold_opt = 0;
break;
case 'p':
- noscroll++;
+ ctl->noscroll = 1;
break;
case 'c':
- clreol++;
+ ctl->clreol = 1;
break;
case 's':
- ssp_opt = 1;
+ ctl->ssp_opt = 1;
break;
case 'u':
- ul_opt = 0;
+ ctl->ul_opt = 0;
break;
case '-':
case ' ':
@@ -301,9 +315,9 @@ static void argscan(char *s)
}
/* force clear to end of line */
-static void cleareol(void)
+static void cleareol(struct more_control *ctl)
{
- putstring(eraseln);
+ putstring(ctl->eraseln);
}
/* magic --
@@ -338,7 +352,7 @@ static int magic(FILE *f, char *fs)
/* Check whether the file named by fs is an ASCII file which the user may
* access. If it is, return the opened file. Otherwise return NULL. */
-static FILE *checkf(register char *fs, int *clearfirst)
+static FILE *checkf(struct more_control *ctl, register char *fs, int *clearfirst)
{
struct stat stbuf;
register FILE *f;
@@ -346,8 +360,8 @@ static FILE *checkf(register char *fs, int *clearfirst)
if (stat(fs, &stbuf) == -1) {
fflush(stdout);
- if (clreol)
- cleareol();
+ if (ctl->clreol)
+ cleareol(ctl);
warn(_("stat of %s failed"), fs);
return ((FILE *)NULL);
}
@@ -368,30 +382,30 @@ static FILE *checkf(register char *fs, int *clearfirst)
c = Getc(f);
*clearfirst = (c == '\f');
Ungetc(c, f);
- if ((file_size = stbuf.st_size) == 0)
- file_size = LONG_MAX;
+ if ((ctl->file_size = stbuf.st_size) == 0)
+ ctl->file_size = LONG_MAX;
return (f);
}
-static void prepare_line_buffer(void)
+static void prepare_line_buffer(struct more_control *ctl)
{
char *nline;
- size_t nsz = Mcol * 4;
+ size_t nsz = ctl->Mcol * 4;
- if (LineLen >= nsz)
+ if (ctl->LineLen >= nsz)
return;
if (nsz < LINSIZ)
nsz = LINSIZ;
/* alloc nsz and extra space for \n\0 */
- nline = xrealloc(Line, nsz + 2);
- Line = nline;
- LineLen = nsz;
+ nline = xrealloc(ctl->Line, nsz + 2);
+ ctl->Line = nline;
+ ctl->LineLen = nsz;
}
/* Get a logical line */
-static int get_line(register FILE *f, int *length)
+static int get_line(struct more_control *ctl, register FILE *f, int *length)
{
int c;
char *p;
@@ -413,18 +427,18 @@ static int get_line(register FILE *f, int *length)
memset(&state, '\0', sizeof(mbstate_t));
#endif
- prepare_line_buffer();
+ prepare_line_buffer(ctl);
- p = Line;
+ p = ctl->Line;
column = 0;
c = Getc(f);
if (colflg && c == '\n') {
- Currline++;
+ ctl->Currline++;
c = Getc(f);
}
- while (p < &Line[LineLen - 1]) {
+ while (p < &ctl->Line[ctl->LineLen - 1]) {
#ifdef HAVE_WIDECHAR
- if (fold_opt && use_mbc_buffer_flag && MB_CUR_MAX > 1) {
+ if (ctl->fold_opt && use_mbc_buffer_flag && MB_CUR_MAX > 1) {
use_mbc_buffer_flag = 0;
state_bak = state;
mbc[mbc_pos++] = c;
@@ -443,7 +457,7 @@ static int get_line(register FILE *f, int *length)
column++;
file_pos_bak++;
- if (column >= Mcol) {
+ if (column >= ctl->Mcol) {
Fseek(f, file_pos_bak);
} else {
memmove(mbc, mbc + 1, --mbc_pos);
@@ -457,11 +471,11 @@ static int get_line(register FILE *f, int *length)
default:
wc_width = wcwidth(wc);
- if (column + wc_width > Mcol) {
+ if (column + wc_width > ctl->Mcol) {
Fseek(f, file_pos_bak);
break_flag = 1;
} else {
- for (i = 0; p < &Line[LineLen - 1] &&
+ for (i = 0; p < &ctl->Line[ctl->LineLen - 1] &&
i < mbc_pos; i++)
*p++ = mbc[i];
if (wc_width > 0)
@@ -469,7 +483,7 @@ static int get_line(register FILE *f, int *length)
}
}
- if (break_flag || column >= Mcol)
+ if (break_flag || column >= ctl->Mcol)
break;
c = Getc(f);
@@ -477,16 +491,16 @@ static int get_line(register FILE *f, int *length)
}
#endif /* HAVE_WIDECHAR */
if (c == EOF) {
- if (p > Line) {
+ if (p > ctl->Line) {
*p = '\0';
- *length = p - Line;
+ *length = p - ctl->Line;
return (column);
}
- *length = p - Line;
+ *length = p - ctl->Line;
return (EOF);
}
if (c == '\n') {
- Currline++;
+ ctl->Currline++;
break;
}
@@ -506,19 +520,19 @@ static int get_line(register FILE *f, int *length)
}
#endif /* 0 */
if (c == '\t') {
- if (!hardtabs || (column < promptlen && !hard)) {
- if (hardtabs && eraseln && !dumb) {
+ if (!ctl->hardtabs || (column < ctl->promptlen && !ctl->hard)) {
+ if (ctl->hardtabs && ctl->eraseln && !ctl->dumb) {
column = 1 + (column | 7);
- putstring(eraseln);
- promptlen = 0;
+ putp(ctl->eraseln);
+ ctl->promptlen = 0;
} else {
- for (--p; p < &Line[LineLen - 1];) {
+ for (--p; p < &ctl->Line[ctl->LineLen - 1];) {
*p++ = ' ';
if ((++column & 7) == 0)
break;
}
- if (column >= promptlen)
- promptlen = 0;
+ if (column >= ctl->promptlen)
+ ctl->promptlen = 0;
}
} else
column = 1 + (column | 7);
@@ -528,22 +542,22 @@ static int get_line(register FILE *f, int *length)
int next = Getc(f);
if (next == '\n') {
p--;
- Currline++;
+ ctl->Currline++;
break;
}
Ungetc(next, f);
column = 0;
- } else if (c == '\f' && stop_opt) {
+ } else if (c == '\f' && ctl->stop_opt) {
p[-1] = '^';
*p++ = 'L';
column += 2;
- Pause++;
+ ctl->Pause = 1;
} else if (c == EOF) {
- *length = p - Line;
+ *length = p - ctl->Line;
return (column);
} else {
#ifdef HAVE_WIDECHAR
- if (fold_opt && MB_CUR_MAX > 1) {
+ if (ctl->fold_opt && MB_CUR_MAX > 1) {
memset(mbc, '\0', MB_LEN_MAX);
mbc_pos = 0;
mbc[mbc_pos++] = c;
@@ -577,52 +591,52 @@ static int get_line(register FILE *f, int *length)
}
}
- if (column >= Mcol && fold_opt)
+ if (column >= ctl->Mcol && ctl->fold_opt)
break;
#ifdef HAVE_WIDECHAR
- if (use_mbc_buffer_flag == 0 && p >= &Line[LineLen - 1 - 4])
+ if (use_mbc_buffer_flag == 0 && p >= &ctl->Line[ctl->LineLen - 1 - 4])
/* don't read another char if there is no space for
* whole multibyte sequence */
break;
#endif
c = Getc(f);
}
- if (column >= Mcol && Mcol > 0) {
- if (!Wrap) {
+ if (column >= ctl->Mcol && ctl->Mcol > 0) {
+ if (!ctl->Wrap) {
*p++ = '\n';
}
}
- colflg = column == Mcol && fold_opt;
- if (colflg && eatnl && Wrap) {
+ colflg = column == ctl->Mcol && ctl->fold_opt;
+ if (colflg && ctl->eatnl && ctl->Wrap) {
*p++ = '\n'; /* simulate normal wrap */
}
- *length = p - Line;
+ *length = p - ctl->Line;
*p = 0;
return (column);
}
-static void clreos(void)
+static void clreos(struct more_control *ctl)
{
- putstring(EodClr);
+ putstring(ctl->EodClr);
}
/* Erase the rest of the prompt, assuming we are starting at column col. */
-static void erasep(register int col)
+static void erasep(struct more_control *ctl, register int col)
{
- if (promptlen == 0)
+ if (ctl->promptlen == 0)
return;
- if (hard) {
+ if (ctl->hard) {
putchar('\n');
} else {
if (col == 0)
putchar('\r');
- if (!dumb && eraseln)
- putstring(eraseln);
+ if (!ctl->dumb && ctl->eraseln)
+ putstring(ctl->eraseln);
else
- printf("%*s", promptlen - col, "");
+ printf("%*s", ctl->promptlen - col, "");
}
- promptlen = 0;
+ ctl->promptlen = 0;
}
#ifdef HAVE_WIDECHAR
@@ -637,17 +651,17 @@ static UL_ASAN_BLACKLIST size_t xmbrtowc(wchar_t *wc, const char *s, size_t n,
#endif
/* Print a buffer of n characters */
-static void prbuf(register char *s, register int n)
+static void prbuf(struct more_control *ctl, register char *s, register int n)
{
register char c; /* next output character */
register int state; /* next output char's UL state */
#define wouldul(s,n) ((n) >= 2 && (((s)[0] == '_' && (s)[1] == '\b') || ((s)[1] == '\b' && (s)[2] == '_')))
while (--n >= 0)
- if (!ul_opt)
+ if (!ctl->ul_opt)
putchar(*s++);
else {
- if (*s == ' ' && pstate == 0 && ulglitch
+ if (*s == ' ' && ctl->pstate == 0 && ctl->ulglitch
&& wouldul(s + 1, n - 1)) {
s++;
continue;
@@ -658,15 +672,15 @@ static void prbuf(register char *s, register int n)
s += 3;
} else
c = *s++;
- if (state != pstate) {
- if (c == ' ' && state == 0 && ulglitch
+ if (state != ctl->pstate) {
+ if (c == ' ' && state == 0 && ctl->ulglitch
&& wouldul(s, n - 1))
state = 1;
else
- putstring(state ? ULenter : ULexit);
+ putp(state ? ctl->ULenter : ctl->ULexit);
}
- if (c != ' ' || pstate == 0 || state != 0
- || ulglitch == 0)
+ if (c != ' ' || ctl->pstate == 0 || state != 0
+ || ctl->ulglitch == 0)
#ifdef HAVE_WIDECHAR
{
wchar_t wc;
@@ -683,58 +697,58 @@ static void prbuf(register char *s, register int n)
#else
putchar(c);
#endif /* HAVE_WIDECHAR */
- if (state && *chUL) {
- putsout(chBS);
- putstring(chUL);
+ if (state && *ctl->chUL) {
+ putsout(ctl->chBS);
+ putstring(ctl->chUL);
}
- pstate = state;
+ ctl->pstate = state;
}
}
/* Erase the current line entirely */
-static void kill_line(void)
+static void kill_line(struct more_control *ctl)
{
- erasep(0);
- if (!eraseln || dumb)
+ erasep(ctl, 0);
+ if (!ctl->eraseln || ctl->dumb)
putchar('\r');
}
#define ringbell() putcerr('\007')
-static void prompt(char *filename)
+static void prompt(struct more_control *ctl, char *filename)
{
- if (clreol)
- cleareol();
- else if (promptlen > 0)
- kill_line();
- if (!hard) {
- promptlen = 0;
- if (Senter && Sexit) {
- putstring(Senter);
- promptlen += (2 * soglitch);
+ if (ctl->clreol)
+ cleareol(ctl);
+ else if (ctl->promptlen > 0)
+ kill_line(ctl);
+ if (!ctl->hard) {
+ ctl->promptlen = 0;
+ if (ctl->Senter && ctl->Sexit) {
+ putstring(ctl->Senter);
+ ctl->promptlen += (2 * ctl->soglitch);
}
- if (clreol)
- cleareol();
- promptlen += printf(_("--More--"));
+ if (ctl->clreol)
+ cleareol(ctl);
+ ctl->promptlen += printf(_("--More--"));
if (filename != NULL) {
- promptlen += printf(_("(Next file: %s)"), filename);
- } else if (!no_intty) {
- promptlen +=
+ ctl->promptlen += printf(_("(Next file: %s)"), filename);
+ } else if (!ctl->no_intty) {
+ ctl->promptlen +=
printf("(%d%%)",
- (int)((file_pos * 100) / file_size));
+ (int)((ctl->file_pos * 100) / ctl->file_size));
}
- if (dum_opt) {
- promptlen +=
+ if (ctl->dum_opt) {
+ ctl->promptlen +=
printf(_("[Press space to continue, 'q' to quit.]"));
}
- if (Senter && Sexit)
- putstring(Sexit);
- if (clreol)
- clreos();
+ if (ctl->Senter && ctl->Sexit)
+ putstring(ctl->Sexit);
+ if (ctl->clreol)
+ clreos(ctl);
fflush(stdout);
} else
ringbell();
- inwait++;
+ ctl->inwait++;
}
static int ourputch(int c)
@@ -744,18 +758,18 @@ static int ourputch(int c)
static void reset_tty(void)
{
- if (no_tty)
+ if (global_ctl->no_tty)
return;
- if (pstate) {
+ if (global_ctl->pstate) {
/* putchar - if that isn't a macro */
- tputs(ULexit, fileno(stdout), ourputch);
+ tputs(global_ctl->ULexit, fileno(stdout), ourputch);
fflush(stdout);
- pstate = 0;
+ global_ctl->pstate = 0;
}
- otty.c_lflag |= ICANON | ECHO;
- otty.c_cc[VMIN] = savetty0.c_cc[VMIN];
- otty.c_cc[VTIME] = savetty0.c_cc[VTIME];
- stty(fileno(stderr), &savetty0);
+ global_ctl->otty.c_lflag |= ICANON | ECHO;
+ global_ctl->otty.c_cc[VMIN] = global_ctl->savetty0.c_cc[VMIN];
+ global_ctl->otty.c_cc[VTIME] = global_ctl->savetty0.c_cc[VTIME];
+ stty(fileno(stderr), &global_ctl->savetty0);
}
/* Clean up terminal state and exit. Also come here if interrupt signal received */
@@ -770,21 +784,21 @@ static void __attribute__((__noreturn__)) end_it(int dummy __attribute__((__unus
signal(SIGINT, SIG_IGN);
reset_tty();
- if (clreol) {
+ if (global_ctl->clreol) {
putchar('\r');
- clreos();
+ clreos(global_ctl);
fflush(stdout);
- } else if (!clreol && (promptlen > 0)) {
- kill_line();
+ } else if (!global_ctl->clreol && (global_ctl->promptlen > 0)) {
+ kill_line(global_ctl);
fflush(stdout);
} else
putcerr('\n');
- free(previousre);
- free(Line);
+ free(global_ctl->previousre);
+ free(global_ctl->Line);
_exit(EXIT_SUCCESS);
}
-static int readch(void)
+static int readch(struct more_control *ctl)
{
unsigned char c;
@@ -793,27 +807,27 @@ static int readch(void)
if (errno != EINTR)
end_it(0);
else
- c = otty.c_cc[VKILL];
+ c = ctl->otty.c_cc[VKILL];
}
return (c);
}
/* Read a decimal number from the terminal. Set cmd to the non-digit
* which terminates the number. */
-static int number(char *cmd)
+static int number(struct more_control *ctl, char *cmd)
{
register int i;
i = 0;
- ch = otty.c_cc[VKILL];
+ ctl->ch = ctl->otty.c_cc[VKILL];
for (;;) {
- ch = readch();
- if (isdigit(ch))
- i = i * 10 + ch - '0';
- else if ((cc_t) ch == otty.c_cc[VKILL])
+ ctl->ch = readch(ctl);
+ if (isdigit(ctl->ch))
+ i = i * 10 + ctl->ch - '0';
+ else if ((cc_t) ctl->ch == ctl->otty.c_cc[VKILL])
i = 0;
else {
- *cmd = ch;
+ *cmd = ctl->ch;
break;
}
}
@@ -822,62 +836,62 @@ static int number(char *cmd)
/* Skip nskip files in the file list (from the command line). Nskip may
* be negative. */
-static void skipf(register int nskip)
+static void skipf(struct more_control *ctl, register int nskip)
{
if (nskip == 0)
return;
if (nskip > 0) {
- if (fnum + nskip > nfiles - 1)
- nskip = nfiles - fnum - 1;
- } else if (within)
- ++fnum;
- fnum += nskip;
- if (fnum < 0)
- fnum = 0;
+ if (ctl->fnum + nskip > ctl->nfiles - 1)
+ nskip = ctl->nfiles - ctl->fnum - 1;
+ } else if (ctl->within)
+ ctl->fnum++;
+ ctl->fnum += nskip;
+ if (ctl->fnum < 0)
+ ctl->fnum = 0;
puts(_("\n...Skipping "));
- if (clreol)
- cleareol();
+ if (ctl->clreol)
+ cleareol(ctl);
if (nskip > 0)
putsout(_("...Skipping to file "));
else
putsout(_("...Skipping back to file "));
- puts(fnames[fnum]);
- if (clreol)
- cleareol();
+ puts(ctl->fnames[ctl->fnum]);
+ if (ctl->clreol)
+ cleareol(ctl);
putchar('\n');
- --fnum;
+ ctl->fnum--;
}
-static void show(char c)
+static void show(struct more_control *ctl, char c)
{
if ((c < ' ' && c != '\n' && c != ESC) || c == RUBOUT) {
c += (c == RUBOUT) ? -0100 : 0100;
- putserr(CARAT);
- promptlen++;
+ putserr("^");
+ ctl->promptlen++;
}
putcerr(c);
- promptlen++;
+ ctl->promptlen++;
}
-static void more_error(char *mess)
+static void more_error(struct more_control *ctl, char *mess)
{
- if (clreol)
- cleareol();
+ if (ctl->clreol)
+ cleareol(ctl);
else
- kill_line();
- promptlen += strlen(mess);
- if (Senter && Sexit) {
- putstring(Senter);
+ kill_line(ctl);
+ ctl->promptlen += strlen(mess);
+ if (ctl->Senter && ctl->Sexit) {
+ putp(ctl->Senter);
putsout(mess);
- putstring(Sexit);
+ putp(ctl->Sexit);
} else
putsout(mess);
fflush(stdout);
- errors++;
- siglongjmp(restore, 1);
+ ctl->errors++;
+ siglongjmp(ctl->restore, 1);
}
-static void ttyin(char buf[], register int nmax, char pchar)
+static void ttyin(struct more_control *ctl, char buf[], register int nmax, char pchar)
{
char *sp;
int c;
@@ -887,12 +901,12 @@ static void ttyin(char buf[], register int nmax, char pchar)
sp = buf;
maxlen = 0;
while (sp - buf < nmax) {
- if (promptlen > maxlen)
- maxlen = promptlen;
- c = readch();
+ if (ctl->promptlen > maxlen)
+ maxlen = ctl->promptlen;
+ c = readch(ctl);
if (c == '\\') {
slash++;
- } else if (((cc_t) c == otty.c_cc[VERASE]) && !slash) {
+ } else if (((cc_t) c == ctl->otty.c_cc[VERASE]) && !slash) {
if (sp > buf) {
#ifdef HAVE_WIDECHAR
if (MB_CUR_MAX > 1) {
@@ -925,7 +939,7 @@ static void ttyin(char buf[], register int nmax, char pchar)
}
if (mblength == 1) {
- ERASEONECOLUMN(docrterase);
+ ERASEONECOLUMN(ctl->docrterase);
} else {
int wc_width;
wc_width = wcwidth(wc);
@@ -933,54 +947,54 @@ static void ttyin(char buf[], register int nmax, char pchar)
(wc_width <
1) ? 1 : wc_width;
while (wc_width--) {
- ERASEONECOLUMN(docrterase);
+ ERASEONECOLUMN(ctl->docrterase);
}
}
while (mblength--) {
- --promptlen;
+ --ctl->promptlen;
--sp;
}
} else
#endif /* HAVE_WIDECHAR */
{
- --promptlen;
- ERASEONECOLUMN(docrterase);
+ --ctl->promptlen;
+ ERASEONECOLUMN(ctl->docrterase);
--sp;
}
if ((*sp < ' ' && *sp != '\n') || *sp == RUBOUT) {
- --promptlen;
- ERASEONECOLUMN(docrterase);
+ --ctl->promptlen;
+ ERASEONECOLUMN(ctl->docrterase);
}
continue;
} else {
- if (!eraseln)
- promptlen = maxlen;
- siglongjmp(restore, 1);
+ if (!ctl->eraseln)
+ ctl->promptlen = maxlen;
+ siglongjmp(ctl->restore, 1);
}
- } else if (((cc_t) c == otty.c_cc[VKILL]) && !slash) {
- if (hard) {
- show(c);
+ } else if (((cc_t) c == ctl->otty.c_cc[VKILL]) && !slash) {
+ if (ctl->hard) {
+ show(ctl, c);
putchar('\n');
putchar(pchar);
} else {
putchar('\r');
putchar(pchar);
- if (eraseln)
- erasep(1);
- else if (docrtkill)
- while (promptlen-- > 1)
- putserr(BSB);
- promptlen = 1;
+ if (ctl->eraseln)
+ erasep(ctl, 1);
+ else if (ctl->docrtkill)
+ while (ctl->promptlen-- > 1)
+ putserr("\b \b");
+ ctl->promptlen = 1;
}
sp = buf;
fflush(stdout);
continue;
}
- if (slash && ((cc_t) c == otty.c_cc[VKILL]
- || (cc_t) c == otty.c_cc[VERASE])) {
- ERASEONECOLUMN(docrterase);
+ if (slash && ((cc_t) c == ctl->otty.c_cc[VKILL]
+ || (cc_t) c == ctl->otty.c_cc[VERASE])) {
+ ERASEONECOLUMN(ctl->docrterase);
--sp;
}
if (c != '\\')
@@ -988,24 +1002,24 @@ static void ttyin(char buf[], register int nmax, char pchar)
*sp++ = c;
if ((c < ' ' && c != '\n' && c != ESC) || c == RUBOUT) {
c += (c == RUBOUT) ? -0100 : 0100;
- putserr(CARAT);
- promptlen++;
+ putserr("^");
+ ctl->promptlen++;
}
if (c != '\n' && c != ESC) {
putcerr(c);
- promptlen++;
+ ctl->promptlen++;
} else
break;
}
*--sp = '\0';
- if (!eraseln)
- promptlen = maxlen;
+ if (!ctl->eraseln)
+ ctl->promptlen = maxlen;
if (sp - buf >= nmax - 1)
- more_error(_("Line too long"));
+ more_error(ctl, _("Line too long"));
}
/* return: 0 - unchanged, 1 - changed, -1 - overflow (unchanged) */
-static int expand(char **outbuf, char *inbuf)
+static int expand(struct more_control *ctl, char **outbuf, char *inbuf)
{
char *inpstr;
char *outstr;
@@ -1014,7 +1028,7 @@ static int expand(char **outbuf, char *inbuf)
int changed = 0;
int tempsz, xtra, offset;
- xtra = strlen(fnames[fnum]) + strlen(shell_line) + 1;
+ xtra = strlen(ctl->fnames[ctl->fnum]) + strlen(ctl->shell_line) + 1;
tempsz = 200 + xtra;
temp = xmalloc(tempsz);
inpstr = inbuf;
@@ -1028,19 +1042,19 @@ static int expand(char **outbuf, char *inbuf)
}
switch (c) {
case '%':
- if (!no_intty) {
- strcpy(outstr, fnames[fnum]);
- outstr += strlen(fnames[fnum]);
+ if (!ctl->no_intty) {
+ strcpy(outstr, ctl->fnames[ctl->fnum]);
+ outstr += strlen(ctl->fnames[ctl->fnum]);
changed++;
} else
*outstr++ = c;
break;
case '!':
- if (!shellp)
- more_error(_
+ if (!ctl->shellp)
+ more_error(ctl, _
("No previous command to substitute for"));
- strcpy(outstr, shell_line);
- outstr += strlen(shell_line);
+ strcpy(outstr, ctl->shell_line);
+ outstr += strlen(ctl->shell_line);
changed++;
break;
case '\\':
@@ -1058,28 +1072,28 @@ static int expand(char **outbuf, char *inbuf)
return (changed);
}
-static void set_tty(void)
+static void set_tty(struct more_control *ctl)
{
- otty.c_lflag &= ~(ICANON | ECHO);
- otty.c_cc[VMIN] = 1; /* read at least 1 char */
- otty.c_cc[VTIME] = 0; /* no timeout */
- stty(fileno(stderr), &otty);
+ ctl->otty.c_lflag &= ~(ICANON | ECHO);
+ ctl->otty.c_cc[VMIN] = 1; /* read at least 1 char */
+ ctl->otty.c_cc[VTIME] = 0; /* no timeout */
+ stty(fileno(stderr), &ctl->otty);
}
/* Come here if a quit signal is received */
static void onquit(int dummy __attribute__((__unused__)))
{
signal(SIGQUIT, SIG_IGN);
- if (!inwait) {
+ if (!global_ctl->inwait) {
putchar('\n');
- if (!startup) {
+ if (!global_ctl->startup) {
signal(SIGQUIT, onquit);
- siglongjmp(restore, 1);
+ siglongjmp(global_ctl->restore, 1);
} else
- Pause++;
- } else if (!dum_opt && notell) {
- promptlen += fprintf(stderr, _("[Use q or Q to quit]"));
- notell = 0;
+ global_ctl->Pause = 1;
+ } else if (!global_ctl->dum_opt && global_ctl->notell) {
+ global_ctl->promptlen += fprintf(stderr, _("[Use q or Q to quit]"));
+ global_ctl->notell = 0;
}
signal(SIGQUIT, onquit);
}
@@ -1109,12 +1123,12 @@ static void onsusp(int dummy __attribute__((__unused__)))
/* We're back */
signal(SIGTSTP, onsusp);
- set_tty();
- if (inwait)
- siglongjmp(restore, 1);
+ set_tty(global_ctl);
+ if (global_ctl->inwait)
+ siglongjmp(global_ctl->restore, 1);
}
-static void execute(char *filename, char *cmd, ...)
+static void execute(struct more_control *ctl, char *filename, char *cmd, ...)
{
int id;
int n;
@@ -1164,101 +1178,101 @@ static void execute(char *filename, char *cmd, ...)
if (id > 0) {
signal(SIGINT, SIG_IGN);
signal(SIGQUIT, SIG_IGN);
- if (catch_susp)
+ if (ctl->catch_susp)
signal(SIGTSTP, SIG_DFL);
while (wait(NULL) > 0) ;
signal(SIGINT, end_it);
signal(SIGQUIT, onquit);
- if (catch_susp)
+ if (ctl->catch_susp)
signal(SIGTSTP, onsusp);
} else
putserr(_("can't fork\n"));
- set_tty();
+ set_tty(ctl);
puts("------------------------");
- prompt(filename);
+ prompt(ctl, filename);
}
-static void do_shell(char *filename)
+static void do_shell(struct more_control *ctl, char *filename)
{
char cmdbuf[COMMAND_BUF];
int rc;
char *expanded;
- kill_line();
+ kill_line(ctl);
putchar('!');
fflush(stdout);
- promptlen = 1;
- if (lastp)
- putsout(shell_line);
+ ctl->promptlen = 1;
+ if (ctl->lastp)
+ putsout(ctl->shell_line);
else {
- ttyin(cmdbuf, sizeof(cmdbuf) - 2, '!');
+ ttyin(ctl, cmdbuf, sizeof(cmdbuf) - 2, '!');
expanded = NULL;
- rc = expand(&expanded, cmdbuf);
+ rc = expand(ctl, &expanded, cmdbuf);
if (expanded) {
- if (strlen(expanded) < sizeof(shell_line))
- strcpy(shell_line, expanded);
+ if (strlen(expanded) < sizeof(ctl->shell_line))
+ strcpy(ctl->shell_line, expanded);
else
rc = -1;
free(expanded);
}
if (rc < 0) {
putserr(_(" Overflow\n"));
- prompt(filename);
+ prompt(ctl, filename);
return;
} else if (rc > 0) {
- kill_line();
- promptlen = printf("!%s", shell_line);
+ kill_line(ctl);
+ ctl->promptlen = printf("!%s", ctl->shell_line);
}
}
fflush(stdout);
putcerr('\n');
- promptlen = 0;
- shellp = 1;
- execute(filename, shell, shell, "-c", shell_line, 0);
+ ctl->promptlen = 0;
+ ctl->shellp = 1;
+ execute(ctl, filename, ctl->shell, ctl->shell, "-c", ctl->shell_line, 0);
}
/* Execute a colon-prefixed command. Returns <0 if not a command that
* should cause more of the file to be printed. */
-static int colon(char *filename, int cmd, int nlines)
+static int colon(struct more_control *ctl, char *filename, int cmd, int nlines)
{
if (cmd == 0)
- ch = readch();
+ ctl->ch = readch(ctl);
else
- ch = cmd;
- lastcolon = ch;
- switch (ch) {
+ ctl->ch = cmd;
+ ctl->lastcolon = ctl->ch;
+ switch (ctl->ch) {
case 'f':
- kill_line();
- if (!no_intty)
- promptlen =
- printf(_("\"%s\" line %d"), fnames[fnum], Currline);
+ kill_line(ctl);
+ if (!ctl->no_intty)
+ ctl->promptlen =
+ printf(_("\"%s\" line %d"), ctl->fnames[ctl->fnum], ctl->Currline);
else
- promptlen = printf(_("[Not a file] line %d"), Currline);
+ ctl->promptlen = printf(_("[Not a file] line %d"), ctl->Currline);
fflush(stdout);
return (-1);
case 'n':
if (nlines == 0) {
- if (fnum >= nfiles - 1)
+ if (ctl->fnum >= ctl->nfiles - 1)
end_it(0);
nlines++;
}
putchar('\r');
- erasep(0);
- skipf(nlines);
+ erasep(ctl, 0);
+ skipf(ctl, nlines);
return (0);
case 'p':
- if (no_intty) {
+ if (ctl->no_intty) {
ringbell();
return (-1);
}
putchar('\r');
- erasep(0);
+ erasep(ctl, 0);
if (nlines == 0)
nlines++;
- skipf(-nlines);
+ skipf(ctl, -nlines);
return (0);
case '!':
- do_shell(filename);
+ do_shell(ctl, filename);
return (-1);
case 'q':
case 'Q':
@@ -1270,7 +1284,7 @@ static int colon(char *filename, int cmd, int nlines)
}
/* Skip n lines in the file f */
-static void skiplns(register int n, register FILE *f)
+static void skiplns(struct more_control *ctl, register int n, register FILE *f)
{
register int c;
@@ -1279,47 +1293,47 @@ static void skiplns(register int n, register FILE *f)
if (c == EOF)
return;
n--;
- Currline++;
+ ctl->Currline++;
}
}
/* Clear the screen */
-static void doclear(void)
+static void doclear(struct more_control *ctl)
{
- if (Clear && !hard) {
- putstring(Clear);
+ if (ctl->Clear && !ctl->hard) {
+ putp(ctl->Clear);
/* Put out carriage return so that system doesn't get
* confused by escape sequences when expanding tabs */
putchar('\r');
- promptlen = 0;
+ ctl->promptlen = 0;
}
}
-static void rdline(register FILE *f)
+static void rdline(struct more_control *ctl, register FILE *f)
{
register int c;
register char *p;
- prepare_line_buffer();
+ prepare_line_buffer(ctl);
- p = Line;
+ p = ctl->Line;
while ((c = Getc(f)) != '\n' && c != EOF
- && (size_t)(p - Line) < LineLen - 1)
+ && (size_t)(p - ctl->Line) < ctl->LineLen - 1)
*p++ = c;
if (c == '\n')
- Currline++;
+ ctl->Currline++;
*p = '\0';
}
/* Go to home position */
-static void home(void)
+static void home(struct more_control *ctl)
{
- putstring(Home);
+ putp(ctl->Home);
}
/* Search for nth occurrence of regular expression contained in buf in
* the file */
-static void search(char buf[], FILE *file, register int n)
+static void search(struct more_control *ctl, char buf[], FILE *file, register int n)
{
long startline = Ftell(file);
register long line1 = startline;
@@ -1329,51 +1343,51 @@ static void search(char buf[], FILE *file, register int n)
int saveln, rc;
regex_t re;
- context.line = saveln = Currline;
- context.chrctr = startline;
+ ctl->context.line = saveln = ctl->Currline;
+ ctl->context.chrctr = startline;
lncount = 0;
if (!buf)
goto notfound;
if ((rc = regcomp(&re, buf, REG_NOSUB)) != 0) {
char s[REGERR_BUF];
regerror(rc, &re, s, sizeof s);
- more_error(s);
+ more_error(ctl, s);
}
while (!feof(file)) {
line3 = line2;
line2 = line1;
line1 = Ftell(file);
- rdline(file);
+ rdline(ctl, file);
lncount++;
- if (regexec(&re, Line, 0, NULL, 0) == 0) {
+ if (regexec(&re, ctl->Line, 0, NULL, 0) == 0) {
if (--n == 0) {
- if (lncount > 3 || (lncount > 1 && no_intty)) {
+ if (lncount > 3 || (lncount > 1 && ctl->no_intty)) {
putchar('\n');
- if (clreol)
- cleareol();
+ if (ctl->clreol)
+ cleareol(ctl);
putsout(_("...skipping\n"));
}
- if (!no_intty) {
- Currline -=
+ if (!ctl->no_intty) {
+ ctl->Currline -=
(lncount >= 3 ? 3 : lncount);
Fseek(file, line3);
- if (noscroll) {
- if (clreol) {
- home();
- cleareol();
+ if (ctl->noscroll) {
+ if (ctl->clreol) {
+ home(ctl);
+ cleareol(ctl);
} else
- doclear();
+ doclear(ctl);
}
} else {
- kill_line();
- if (noscroll) {
- if (clreol) {
- home();
- cleareol();
+ kill_line(ctl);
+ if (ctl->noscroll) {
+ if (ctl->clreol) {
+ home(ctl);
+ cleareol(ctl);
} else
- doclear();
+ doclear(ctl);
}
- puts(Line);
+ puts(ctl->Line);
}
break;
}
@@ -1381,17 +1395,17 @@ static void search(char buf[], FILE *file, register int n)
}
regfree(&re);
if (feof(file)) {
- if (!no_intty) {
- Currline = saveln;
+ if (!ctl->no_intty) {
+ ctl->Currline = saveln;
Fseek(file, startline);
} else {
putsout(_("\nPattern not found\n"));
end_it(0);
}
- free(previousre);
- previousre = NULL;
+ free(ctl->previousre);
+ ctl->previousre = NULL;
notfound:
- more_error(_("Pattern not found"));
+ more_error(ctl, _("Pattern not found"));
}
}
@@ -1399,7 +1413,7 @@ notfound:
* argument followed by the command character. Return the number of
* lines to display in the next screenful. If there is nothing more to
* display in the current file, zero is returned. */
-static int command(char *filename, register FILE *f)
+static int command(struct more_control *ctl, char *filename, register FILE *f)
{
register int nlines;
register int retval = 0;
@@ -1411,30 +1425,30 @@ static int command(char *filename, register FILE *f)
#define ret(val) retval=val;done++;break
done = 0;
- if (!errors)
- prompt(filename);
+ if (!ctl->errors)
+ prompt(ctl, filename);
else
- errors = 0;
+ ctl->errors = 0;
for (;;) {
- nlines = number(&comchar);
- lastp = colonch = 0;
+ nlines = number(ctl, &comchar);
+ ctl->lastp = colonch = 0;
if (comchar == '.') { /* Repeat last command */
- lastp++;
- comchar = lastcmd;
- nlines = lastarg;
- if (lastcmd == ':')
- colonch = lastcolon;
+ ctl->lastp++;
+ comchar = ctl->lastcmd;
+ nlines = ctl->lastarg;
+ if (ctl->lastcmd == ':')
+ colonch = ctl->lastcolon;
}
- lastcmd = comchar;
- lastarg = nlines;
- if ((cc_t) comchar == otty.c_cc[VERASE]) {
- kill_line();
- prompt(filename);
+ ctl->lastcmd = comchar;
+ ctl->lastarg = nlines;
+ if ((cc_t) comchar == ctl->otty.c_cc[VERASE]) {
+ kill_line(ctl);
+ prompt(ctl, filename);
continue;
}
switch (comchar) {
case ':':
- retval = colon(filename, colonch, nlines);
+ retval = colon(ctl, filename, colonch, nlines);
if (retval >= 0)
done++;
break;
@@ -1443,7 +1457,7 @@ static int command(char *filename, register FILE *f)
{
register int initline;
- if (no_intty) {
+ if (ctl->no_intty) {
ringbell();
return (-1);
}
@@ -1452,43 +1466,43 @@ static int command(char *filename, register FILE *f)
nlines++;
putchar('\r');
- erasep(0);
+ erasep(ctl, 0);
putchar('\n');
- if (clreol)
- cleareol();
+ if (ctl->clreol)
+ cleareol(ctl);
printf(P_("...back %d page",
"...back %d pages", nlines),
nlines);
- if (clreol)
- cleareol();
+ if (ctl->clreol)
+ cleareol(ctl);
putchar('\n');
- initline = Currline - dlines * (nlines + 1);
- if (!noscroll)
+ initline = ctl->Currline - ctl->dlines * (nlines + 1);
+ if (!ctl->noscroll)
--initline;
if (initline < 0)
initline = 0;
Fseek(f, 0L);
- Currline = 0; /* skiplns() will make Currline correct */
- skiplns(initline, f);
- if (!noscroll) {
- ret(dlines + 1);
+ ctl->Currline = 0; /* skiplns() will make Currline correct */
+ skiplns(ctl, initline, f);
+ if (!ctl->noscroll) {
+ ret(ctl->dlines + 1);
} else {
- ret(dlines);
+ ret(ctl->dlines);
}
}
case ' ':
case 'z':
if (nlines == 0)
- nlines = dlines;
+ nlines = ctl->dlines;
else if (comchar == 'z')
- dlines = nlines;
+ ctl->dlines = nlines;
ret(nlines);
case 'd':
case ctrl('D'):
if (nlines != 0)
- nscroll = nlines;
- ret(nscroll);
+ ctl->nscroll = nlines;
+ ret(ctl->nscroll);
case 'q':
case 'Q':
end_it(0);
@@ -1498,18 +1512,18 @@ static int command(char *filename, register FILE *f)
if (nlines == 0)
nlines++;
if (comchar == 'f')
- nlines *= dlines;
+ nlines *= ctl->dlines;
putchar('\r');
- erasep(0);
+ erasep(ctl, 0);
putchar('\n');
- if (clreol)
- cleareol();
+ if (ctl->clreol)
+ cleareol(ctl);
printf(P_("...skipping %d line",
"...skipping %d lines", nlines),
nlines);
- if (clreol)
- cleareol();
+ if (ctl->clreol)
+ cleareol(ctl);
putchar('\n');
while (nlines > 0) {
@@ -1519,74 +1533,74 @@ static int command(char *filename, register FILE *f)
done++;
goto endsw;
}
- Currline++;
+ ctl->Currline++;
nlines--;
}
- ret(dlines);
+ ret(ctl->dlines);
case '\n':
if (nlines != 0)
- dlines = nlines;
+ ctl->dlines = nlines;
else
nlines = 1;
ret(nlines);
case '\f':
- if (!no_intty) {
- doclear();
- Fseek(f, screen_start.chrctr);
- Currline = screen_start.line;
- ret(dlines);
+ if (!ctl->no_intty) {
+ doclear(ctl);
+ Fseek(f, ctl->screen_start.chrctr);
+ ctl->Currline = ctl->screen_start.line;
+ ret(ctl->dlines);
} else {
ringbell();
break;
}
case '\'':
- if (!no_intty) {
- kill_line();
+ if (!ctl->no_intty) {
+ kill_line(ctl);
putsout(_("\n***Back***\n\n"));
- Fseek(f, context.chrctr);
- Currline = context.line;
- ret(dlines);
+ Fseek(f, ctl->context.chrctr);
+ ctl->Currline = ctl->context.line;
+ ret(ctl->dlines);
} else {
ringbell();
break;
}
case '=':
- kill_line();
- promptlen = printf("%d", Currline);
+ kill_line(ctl);
+ ctl->promptlen = printf("%d", ctl->Currline);
fflush(stdout);
break;
case 'n':
- if (!previousre) {
- more_error(_("No previous regular expression"));
+ if (!ctl->previousre) {
+ more_error(ctl, _("No previous regular expression"));
break;
}
- lastp++;
+ ctl->lastp++;
/* fallthrough */
case '/':
if (nlines == 0)
nlines++;
- kill_line();
+ kill_line(ctl);
putchar('/');
- promptlen = 1;
+ ctl->promptlen = 1;
fflush(stdout);
- if (lastp) {
+ if (ctl->lastp) {
putcerr('\r');
- search(previousre, f, nlines);
+ search(ctl, ctl->previousre, f, nlines);
} else {
- ttyin(cmdbuf, sizeof(cmdbuf) - 2, '/');
+ ttyin(ctl, cmdbuf, sizeof(cmdbuf) - 2, '/');
putcerr('\r');
- free(previousre);
- previousre = xstrdup(cmdbuf);
- search(cmdbuf, f, nlines);
+ free(ctl->previousre);
+ ctl->previousre = xstrdup(cmdbuf);
+ search(ctl, cmdbuf, f, nlines);
}
- ret(dlines - 1);
+ ret(ctl->dlines - 1);
case '!':
- do_shell(filename);
+ do_shell(ctl, filename);
break;
case '?':
case 'h':
- if (noscroll)
- doclear();
+ if (ctl->noscroll)
+ doclear(ctl);
putsout(_("\n"
"Most commands optionally preceded by integer argument k. "
"Defaults in brackets.\n"
@@ -1615,16 +1629,16 @@ static int command(char *filename, register FILE *f)
". Repeat previous command\n"));
puts("---------------------------------------"
"----------------------------------------");
- prompt(filename);
+ prompt(ctl, filename);
break;
case 'v': /* This case should go right before default */
- if (!no_intty) {
+ if (!ctl->no_intty) {
/* Earlier: call vi +n file. This also
* works for emacs. POSIX: call vi -c n
* file (when editor is vi or ex). */
char *editor, *p;
- int n = (Currline - dlines <= 0 ? 1 :
- Currline - (dlines + 1) / 2);
+ int n = (ctl->Currline - ctl->dlines <= 0 ? 1 :
+ ctl->Currline - (ctl->dlines + 1) / 2);
int split = 0;
editor = getenv("VISUAL");
@@ -1645,33 +1659,33 @@ static int command(char *filename, register FILE *f)
sprintf(cmdbuf, "+%d", n);
}
- kill_line();
+ kill_line(ctl);
printf("%s %s %s", editor, cmdbuf,
- fnames[fnum]);
+ ctl->fnames[ctl->fnum]);
if (split) {
cmdbuf[2] = 0;
- execute(filename, editor, editor,
+ execute(ctl, filename, editor, editor,
cmdbuf, cmdbuf + 3,
- fnames[fnum], (char *)0);
+ ctl->fnames[ctl->fnum], (char *)0);
} else
- execute(filename, editor, editor,
- cmdbuf, fnames[fnum],
+ execute(ctl, filename, editor, editor,
+ cmdbuf, ctl->fnames[ctl->fnum],
(char *)0);
break;
}
/* fallthrough */
default:
- if (dum_opt) {
- kill_line();
- if (Senter && Sexit) {
- putstring(Senter);
- promptlen =
+ if (ctl->dum_opt) {
+ kill_line(ctl);
+ if (ctl->Senter && ctl->Sexit) {
+ putstring(ctl->Senter);
+ ctl->promptlen =
printf(_
("[Press 'h' for instructions.]"))
- + 2 * soglitch;
- putstring(Sexit);
+ + 2 * ctl->soglitch;
+ putstring(ctl->Sexit);
} else
- promptlen =
+ ctl->promptlen =
printf(_
("[Press 'h' for instructions.]"));
fflush(stdout);
@@ -1684,13 +1698,13 @@ static int command(char *filename, register FILE *f)
}
putchar('\r');
endsw:
- inwait = 0;
- notell++;
+ ctl->inwait = 0;
+ ctl->notell = 1;
return (retval);
}
/* Print out the contents of the file f, one screenful at a time. */
-static void screen(register FILE *f, register int num_lines)
+static void screen(struct more_control *ctl, register FILE *f, register int num_lines)
{
register int c;
register int nchars;
@@ -1698,67 +1712,67 @@ static void screen(register FILE *f, register int num_lines)
static int prev_len = 1; /* length of previous line */
for (;;) {
- while (num_lines > 0 && !Pause) {
- if ((nchars = get_line(f, &length)) == EOF) {
- if (clreol)
- clreos();
+ while (num_lines > 0 && !ctl->Pause) {
+ if ((nchars = get_line(ctl, f, &length)) == EOF) {
+ if (ctl->clreol)
+ clreos(ctl);
return;
}
- if (ssp_opt && length == 0 && prev_len == 0)
+ if (ctl->ssp_opt && length == 0 && prev_len == 0)
continue;
prev_len = length;
- if (bad_so
- || ((Senter && *Senter == ' ') && (promptlen > 0)))
- erasep(0);
+ if (ctl->bad_so
+ || ((ctl->Senter && *ctl->Senter == ' ') && (ctl->promptlen > 0)))
+ erasep(ctl, 0);
/* must clear before drawing line since tabs on
* some terminals do not erase what they tab
* over. */
- if (clreol)
- cleareol();
- prbuf(Line, length);
- if (nchars < promptlen)
- erasep(nchars); /* erasep () sets promptlen to 0 */
+ if (ctl->clreol)
+ cleareol(ctl);
+ prbuf(ctl, ctl->Line, length);
+ if (nchars < ctl->promptlen)
+ erasep(ctl, nchars); /* erasep () sets promptlen to 0 */
else
- promptlen = 0;
+ ctl->promptlen = 0;
/* is this needed?
* if (clreol)
* cleareol(); * must clear again in case we wrapped *
*/
- if (nchars < Mcol || !fold_opt)
- prbuf("\n", 1); /* will turn off UL if necessary */
+ if (nchars < ctl->Mcol || !ctl->fold_opt)
+ prbuf(ctl, "\n", 1); /* will turn off UL if necessary */
if (nchars == STOP)
break;
num_lines--;
}
- if (pstate) {
- putstring(ULexit);
- pstate = 0;
+ if (ctl->pstate) {
+ putp(ctl->ULexit);
+ ctl->pstate = 0;
}
fflush(stdout);
if ((c = Getc(f)) == EOF) {
- if (clreol)
- clreos();
+ if (ctl->clreol)
+ clreos(ctl);
return;
}
- if (Pause && clreol)
- clreos();
+ if (ctl->Pause && ctl->clreol)
+ clreos(ctl);
Ungetc(c, f);
- sigsetjmp(restore, 1);
- Pause = 0;
- startup = 0;
- if ((num_lines = command(NULL, f)) == 0)
+ sigsetjmp(ctl->restore, 1);
+ ctl->Pause = 0;
+ ctl->startup = 0;
+ if ((num_lines = command(ctl, NULL, f)) == 0)
return;
- if (hard && promptlen > 0)
- erasep(0);
- if (noscroll && num_lines >= dlines) {
- if (clreol)
- home();
+ if (ctl->hard && ctl->promptlen > 0)
+ erasep(ctl, 0);
+ if (ctl->noscroll && num_lines >= ctl->dlines) {
+ if (ctl->clreol)
+ home(ctl);
else
- doclear();
+ doclear(ctl);
}
- screen_start.line = Currline;
- screen_start.chrctr = Ftell(f);
+ ctl->screen_start.line = ctl->Currline;
+ ctl->screen_start.chrctr = Ftell(f);
}
}
@@ -1771,14 +1785,14 @@ static void chgwinsz(int dummy __attribute__((__unused__)))
signal(SIGWINCH, SIG_IGN);
if (ioctl(fileno(stdout), TIOCGWINSZ, &win) != -1) {
if (win.ws_row != 0) {
- Lpp = win.ws_row;
- nscroll = Lpp / 2 - 1;
- if (nscroll <= 0)
- nscroll = 1;
- dlines = Lpp - 1; /* was: Lpp - (noscroll ? 1 : 2) */
+ global_ctl->Lpp = win.ws_row;
+ global_ctl->nscroll = global_ctl->Lpp / 2 - 1;
+ if (global_ctl->nscroll <= 0)
+ global_ctl->nscroll = 1;
+ global_ctl->dlines = global_ctl->Lpp - 1; /* was: Lpp - (noscroll ? 1 : 2) */
}
if (win.ws_col != 0)
- Mcol = win.ws_col;
+ global_ctl->Mcol = win.ws_col;
}
signal(SIGWINCH, chgwinsz);
}
@@ -1795,7 +1809,7 @@ static void copy_file(register FILE *f)
/*----------------------------- Terminal I/O -------------------------------*/
-static void initterm(void)
+static void initterm(struct more_control *ctl)
{
int ret;
char *padstr;
@@ -1807,11 +1821,11 @@ static void initterm(void)
#endif
#ifndef NON_INTERACTIVE_MORE
- no_tty = tcgetattr(fileno(stdout), &otty);
+ ctl->no_tty = tcgetattr(fileno(stdout), &ctl->otty);
#endif
- if (!no_tty) {
- docrterase = (otty.c_cc[VERASE] != 255);
- docrtkill = (otty.c_cc[VKILL] != 255);
+ if (!ctl->no_tty) {
+ ctl->docrterase = (ctl->otty.c_cc[VERASE] != 255);
+ ctl->docrtkill = (ctl->otty.c_cc[VKILL] != 255);
#ifdef do_SIGTTOU
{
int tgrp;
@@ -1826,46 +1840,46 @@ static void initterm(void)
}
#endif /* do_SIGTTOU */
if ((term = getenv("TERM")) == NULL) {
- dumb++;
- ul_opt = 0;
+ ctl->dumb = 1;
+ ctl->ul_opt = 0;
}
setupterm(term, 1, &ret);
if (ret <= 0) {
- dumb++;
- ul_opt = 0;
+ ctl->dumb = 1;
+ ctl->ul_opt = 0;
} else {
#ifdef TIOCGWINSZ
if (ioctl(fileno(stdout), TIOCGWINSZ, &win) < 0) {
#endif
- Lpp = tigetnum(TERM_LINES);
- Mcol = tigetnum(TERM_COLS);
+ ctl->Lpp = tigetnum(TERM_LINES);
+ ctl->Mcol = tigetnum(TERM_COLS);
#ifdef TIOCGWINSZ
} else {
- if ((Lpp = win.ws_row) == 0)
- Lpp = tigetnum(TERM_LINES);
- if ((Mcol = win.ws_col) == 0)
- Mcol = tigetnum(TERM_COLS);
+ if ((ctl->Lpp = win.ws_row) == 0)
+ ctl->Lpp = tigetnum(TERM_LINES);
+ if ((ctl->Mcol = win.ws_col) == 0)
+ ctl->Mcol = tigetnum(TERM_COLS);
}
#endif
- if ((Lpp <= 0) || tigetflag(TERM_HARD_COPY)) {
- hard++; /* Hard copy terminal */
- Lpp = LINES_PER_PAGE;
+ if ((ctl->Lpp <= 0) || tigetflag(TERM_HARD_COPY)) {
+ ctl->hard = 1; /* Hard copy terminal */
+ ctl->Lpp = LINES_PER_PAGE;
}
if (tigetflag(TERM_EAT_NEW_LINE))
/* Eat newline at last column + 1; dec, concept */
- eatnl++;
- if (Mcol <= 0)
- Mcol = NUM_COLUMNS;
-
- Wrap = tigetflag(TERM_AUTO_RIGHT_MARGIN);
- bad_so = tigetflag(TERM_CEOL);
- eraseln = tigetstr(TERM_CLEAR_TO_LINE_END);
- Clear = tigetstr(TERM_CLEAR);
- Senter = tigetstr(TERM_STANDARD_MODE);
- Sexit = tigetstr(TERM_EXIT_STANDARD_MODE);
- if ((soglitch = tigetnum(TERM_STD_MODE_GLITCH)) < 0)
- soglitch = 0;
+ ctl->eatnl++;
+ if (ctl->Mcol <= 0)
+ ctl->Mcol = NUM_COLUMNS;
+
+ ctl->Wrap = tigetflag(TERM_AUTO_RIGHT_MARGIN);
+ ctl->bad_so = tigetflag(TERM_CEOL);
+ ctl->eraseln = tigetstr(TERM_CLEAR_TO_LINE_END);
+ ctl->Clear = tigetstr(TERM_CLEAR);
+ ctl->Senter = tigetstr(TERM_STANDARD_MODE);
+ ctl->Sexit = tigetstr(TERM_EXIT_STANDARD_MODE);
+ if (0 < tigetnum(TERM_STD_MODE_GLITCH))
+ ctl->soglitch = 1;
/* Set up for underlining: some terminals don't
* need it; others have start/stop sequences,
@@ -1875,54 +1889,54 @@ static void initterm(void)
* available, settle for standout sequence. */
if (tigetflag(TERM_UNDERLINE)
|| tigetflag(TERM_OVER_STRIKE))
- ul_opt = 0;
- if ((chUL = tigetstr(TERM_UNDERLINE_CHAR)) == NULL)
- chUL = "";
- if (((ULenter =
+ ctl->ul_opt = 0;
+ if ((ctl->chUL = tigetstr(TERM_UNDERLINE_CHAR)) == NULL)
+ ctl->chUL = "";
+ if (((ctl->ULenter =
tigetstr(TERM_ENTER_UNDERLINE)) == NULL
- || (ULexit =
+ || (ctl->ULexit =
tigetstr(TERM_EXIT_UNDERLINE)) == NULL)
- && !*chUL) {
- if ((ULenter = Senter) == NULL
- || (ULexit = Sexit) == NULL) {
- ULenter = "";
- ULexit = "";
+ && !*ctl->chUL) {
+ if ((ctl->ULenter = ctl->Senter) == NULL
+ || (ctl->ULexit = ctl->Sexit) == NULL) {
+ ctl->ULenter = "";
+ ctl->ULexit = "";
} else
- ulglitch = soglitch;
+ ctl->ulglitch = ctl->soglitch;
} else {
- ulglitch = 0;
+ ctl->ulglitch = 0;
}
if ((padstr = tigetstr(TERM_PAD_CHAR)) != NULL)
- PC = *padstr;
- Home = tigetstr(TERM_HOME);
- if (Home == NULL || *Home == '\0') {
- if ((cursorm =
+ ctl->PC = *padstr;
+ ctl->Home = tigetstr(TERM_HOME);
+ if (ctl->Home == NULL || *ctl->Home == '\0') {
+ if ((ctl->cursorm =
tigetstr(TERM_CURSOR_ADDRESS)) != NULL) {
const char *t =
- (const char *)tparm(cursorm, 0,
+ (const char *)tparm(ctl->cursorm, 0,
0);
- xstrncpy(cursorhome, t,
- sizeof(cursorhome));
- Home = cursorhome;
+ xstrncpy(ctl->cursorhome, t,
+ sizeof(ctl->cursorhome));
+ ctl->Home = ctl->cursorhome;
}
}
- EodClr = tigetstr(TERM_CLEAR_TO_SCREEN_END);
- if ((chBS = tigetstr(TERM_LINE_DOWN)) == NULL)
- chBS = "\b";
+ ctl->EodClr = tigetstr(TERM_CLEAR_TO_SCREEN_END);
+ if ((ctl->chBS = tigetstr(TERM_LINE_DOWN)) == NULL)
+ ctl->chBS = "\b";
}
- if ((shell = getenv("SHELL")) == NULL)
- shell = "/bin/sh";
+ if ((ctl->shell = getenv("SHELL")) == NULL)
+ ctl->shell = "/bin/sh";
}
- no_intty = tcgetattr(fileno(stdin), &otty);
- tcgetattr(fileno(stderr), &otty);
- savetty0 = otty;
- hardtabs = (otty.c_oflag & TABDLY) != XTABS;
- if (!no_tty) {
- otty.c_lflag &= ~(ICANON | ECHO);
- otty.c_cc[VMIN] = 1;
- otty.c_cc[VTIME] = 0;
+ ctl->no_intty = tcgetattr(fileno(stdin), &ctl->otty);
+ tcgetattr(fileno(stderr), &ctl->otty);
+ ctl->savetty0 = ctl->otty;
+ ctl->hardtabs = (ctl->otty.c_oflag & TABDLY) != XTABS;
+ if (!ctl->no_tty) {
+ ctl->otty.c_lflag &= ~(ICANON | ECHO);
+ ctl->otty.c_cc[VMIN] = 1;
+ ctl->otty.c_cc[VTIME] = 0;
}
}
@@ -1938,6 +1952,20 @@ int main(int argc, char **argv)
int clearit = 0;
int initline = 0;
char *initbuf = NULL;
+ struct more_control ctl = {
+ .firstf = 1,
+ .fold_opt = 1,
+ .notell = 1,
+ .startup = 1,
+ .stop_opt = 1,
+ .ul_opt = 1,
+ .Wrap = 1,
+ .Lpp = LINES_PER_PAGE,
+ .Mcol = NUM_COLUMNS,
+ .nscroll = SCROLL_LEN,
+ 0
+ };
+ global_ctl = &ctl;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
@@ -1954,29 +1982,29 @@ int main(int argc, char **argv)
}
}
- nfiles = argc;
- fnames = argv;
+ ctl.nfiles = argc;
+ ctl.fnames = argv;
setlocale(LC_ALL, "");
- initterm();
+ initterm(&ctl);
/* Auto set no scroll on when binary is called page */
if (!(strcmp(program_invocation_short_name, "page")))
- noscroll++;
+ ctl.noscroll++;
- prepare_line_buffer();
+ prepare_line_buffer(&ctl);
- nscroll = Lpp / 2 - 1;
- if (nscroll <= 0)
- nscroll = 1;
+ ctl.nscroll = ctl.Lpp / 2 - 1;
+ if (ctl.nscroll <= 0)
+ ctl.nscroll = 1;
if ((s = getenv("MORE")) != NULL)
- argscan(s);
+ argscan(&ctl, s);
- while (--nfiles > 0) {
- if ((chr = (*++fnames)[0]) == '-') {
- argscan(*fnames + 1);
+ while (--ctl.nfiles > 0) {
+ if ((chr = (*++ctl.fnames)[0]) == '-') {
+ argscan(&ctl, *ctl.fnames + 1);
} else if (chr == '+') {
- s = *fnames;
+ s = *ctl.fnames;
if (*++s == '/') {
srchopt++;
initbuf = xstrdup(s + 1);
@@ -1993,25 +2021,25 @@ int main(int argc, char **argv)
}
/* allow clreol only if Home and eraseln and EodClr strings are
* defined, and in that case, make sure we are in noscroll mode */
- if (clreol) {
- if ((Home == NULL) || (*Home == '\0') ||
- (eraseln == NULL) || (*eraseln == '\0') ||
- (EodClr == NULL) || (*EodClr == '\0'))
- clreol = 0;
+ if (ctl.clreol) {
+ if ((ctl.Home == NULL) || (*ctl.Home == '\0') ||
+ (ctl.eraseln == NULL) || (*ctl.eraseln == '\0') ||
+ (ctl.EodClr == NULL) || (*ctl.EodClr == '\0'))
+ ctl.clreol = 0;
else
- noscroll = 1;
+ ctl.noscroll = 1;
}
- if (dlines == 0)
- dlines = Lpp - 1; /* was: Lpp - (noscroll ? 1 : 2) */
- left = dlines;
- if (nfiles > 1)
+ if (ctl.dlines == 0)
+ ctl.dlines = ctl.Lpp - 1; /* was: Lpp - (noscroll ? 1 : 2) */
+ left = ctl.dlines;
+ if (ctl.nfiles > 1)
prnames++;
- if (!no_intty && nfiles == 0) {
+ if (!ctl.no_intty && ctl.nfiles == 0) {
warnx(_("bad usage"));
errtryhelp(EXIT_FAILURE);
} else
f = stdin;
- if (!no_tty) {
+ if (!ctl.no_tty) {
signal(SIGQUIT, onquit);
signal(SIGINT, end_it);
#ifdef SIGWINCH
@@ -2019,106 +2047,106 @@ int main(int argc, char **argv)
#endif
if (signal(SIGTSTP, SIG_IGN) == SIG_DFL) {
signal(SIGTSTP, onsusp);
- catch_susp++;
+ ctl.catch_susp++;
}
- stty(fileno(stderr), &otty);
+ stty(fileno(stderr), &ctl.otty);
}
- if (no_intty) {
- if (no_tty)
+ if (ctl.no_intty) {
+ if (ctl.no_tty)
copy_file(stdin);
else {
- if ((chr = Getc(f)) == '\f')
- doclear();
+ if ((chr = getc(f)) == '\f')
+ doclear(&ctl);
else {
- Ungetc(chr, f);
- if (noscroll && (chr != EOF)) {
- if (clreol)
- home();
+ ungetc(chr, f);
+ if (ctl.noscroll && (chr != EOF)) {
+ if (ctl.clreol)
+ home(&ctl);
else
- doclear();
+ doclear(&ctl);
}
}
if (srchopt) {
- free(previousre);
- previousre = xstrdup(initbuf);
- search(initbuf, stdin, 1);
- if (noscroll)
+ free(ctl.previousre);
+ ctl.previousre = xstrdup(initbuf);
+ search(&ctl, initbuf, stdin, 1);
+ if (ctl.noscroll)
left--;
} else if (initopt)
- skiplns(initline, stdin);
- screen(stdin, left);
+ skiplns(&ctl, initline, stdin);
+ screen(&ctl, stdin, left);
}
- no_intty = 0;
+ ctl.no_intty = 0;
prnames++;
- firstf = 0;
+ ctl.firstf = 0;
}
- while (fnum < nfiles) {
- if ((f = checkf(fnames[fnum], &clearit)) != NULL) {
- context.line = context.chrctr = 0;
- Currline = 0;
- if (firstf)
- sigsetjmp(restore, 1);
- if (firstf) {
- firstf = 0;
+ while (ctl.fnum < ctl.nfiles) {
+ if ((f = checkf(&ctl, ctl.fnames[ctl.fnum], &clearit)) != NULL) {
+ ctl.context.line = ctl.context.chrctr = 0;
+ ctl.Currline = 0;
+ if (ctl.firstf)
+ sigsetjmp(ctl.restore, 1);
+ if (ctl.firstf) {
+ ctl.firstf = 0;
if (srchopt) {
- free(previousre);
- previousre = xstrdup(initbuf);
- search(initbuf, f, 1);
- if (noscroll)
+ free(ctl.previousre);
+ ctl.previousre = xstrdup(initbuf);
+ search(&ctl, initbuf, f, 1);
+ if (ctl.noscroll)
left--;
} else if (initopt)
- skiplns(initline, f);
- } else if (fnum < nfiles && !no_tty) {
- sigsetjmp(restore, 1);
- left = command(fnames[fnum], f);
+ skiplns(&ctl, initline, f);
+ } else if (ctl.fnum < ctl.nfiles && !ctl.no_tty) {
+ sigsetjmp(ctl.restore, 1);
+ left = command(&ctl, ctl.fnames[ctl.fnum], f);
}
if (left != 0) {
- if ((noscroll || clearit)
- && (file_size != LONG_MAX)) {
- if (clreol)
- home();
+ if ((ctl.noscroll || clearit)
+ && (ctl.file_size != LONG_MAX)) {
+ if (ctl.clreol)
+ home(&ctl);
else
- doclear();
+ doclear(&ctl);
}
if (prnames) {
- if (bad_so)
- erasep(0);
- if (clreol)
- cleareol();
+ if (ctl.bad_so)
+ erasep(&ctl, 0);
+ if (ctl.clreol)
+ cleareol(&ctl);
putsout("::::::::::::::");
- if (promptlen > 14)
- erasep(14);
+ if (ctl.promptlen > 14)
+ erasep(&ctl, 14);
putchar('\n');
- if (clreol)
- cleareol();
- puts(fnames[fnum]);
- if (clreol)
- cleareol();
+ if (ctl.clreol)
+ cleareol(&ctl);
+ puts(ctl.fnames[ctl.fnum]);
+ if (ctl.clreol)
+ cleareol(&ctl);
puts("::::::::::::::");
- if (left > Lpp - 4)
- left = Lpp - 4;
+ if (left > ctl.Lpp - 4)
+ left = ctl.Lpp - 4;
}
- if (no_tty)
+ if (ctl.no_tty)
copy_file(f);
else {
- within++;
- screen(f, left);
- within = 0;
+ ctl.within = 1;
+ screen(&ctl, f, left);
+ ctl.within = 0;
}
}
- sigsetjmp(restore, 1);
+ sigsetjmp(ctl.restore, 1);
fflush(stdout);
fclose(f);
- screen_start.line = screen_start.chrctr = 0L;
- context.line = context.chrctr = 0L;
+ ctl.screen_start.line = ctl.screen_start.chrctr = 0L;
+ ctl.context.line = ctl.context.chrctr = 0L;
}
- fnum++;
- firstf = 0;
+ ctl.fnum++;
+ ctl.firstf = 0;
}
- free(previousre);
+ free(ctl.previousre);
free(initbuf);
- free(Line);
+ free(ctl.Line);
reset_tty();
exit(EXIT_SUCCESS);
}
--
2.17.0
--
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