Adjust the terminal height for any overlap, so that no lines

get lost off the top
 -Erik
This commit is contained in:
Eric Andersen 2001-02-22 00:22:46 +00:00
parent 54006bce25
commit be30a6b8b0
2 changed files with 32 additions and 10 deletions

21
more.c
View File

@ -71,6 +71,7 @@ extern int more_main(int argc, char **argv)
int please_display_more_prompt = 0;
struct stat st;
FILE *file;
int len;
#if defined BB_FEATURE_AUTOWIDTH && defined BB_FEATURE_USE_TERMIOS
struct winsize win = { 0, 0, 0, 0 };
@ -112,12 +113,12 @@ extern int more_main(int argc, char **argv)
(void) signal(SIGTERM, gotsig);
#endif
len = 0;
while ((c = getc(file)) != EOF) {
if (please_display_more_prompt) {
int len = 0;
please_display_more_prompt = 0;
if (please_display_more_prompt) {
lines = 0;
please_display_more_prompt = 0;
len = printf("--More-- ");
if (file != stdin) {
#if _FILE_OFFSET_BITS == 64
@ -160,7 +161,7 @@ extern int more_main(int argc, char **argv)
putc('\b', stdout);
fflush(stdout);
#endif
len=0;
}
/*
@ -183,14 +184,24 @@ extern int more_main(int argc, char **argv)
please_display_more_prompt = 1;
break;
}
if (++lines == terminal_height)
/* Adjust the terminal height for any overlap, so that
* no lines get lost off the top. */
if (len) {
div_t result = div( len, terminal_width);
if (result.quot)
terminal_height-=(result.quot-1);
}
if (++lines == terminal_height) {
please_display_more_prompt = 1;
}
len=0;
}
/*
* If we just read a newline from the file being 'mored' and any
* key other than a return is hit, scroll by one page
*/
putc(c, stdout);
len++;
}
fclose(file);
fflush(stdout);

View File

@ -71,6 +71,7 @@ extern int more_main(int argc, char **argv)
int please_display_more_prompt = 0;
struct stat st;
FILE *file;
int len;
#if defined BB_FEATURE_AUTOWIDTH && defined BB_FEATURE_USE_TERMIOS
struct winsize win = { 0, 0, 0, 0 };
@ -112,12 +113,12 @@ extern int more_main(int argc, char **argv)
(void) signal(SIGTERM, gotsig);
#endif
len = 0;
while ((c = getc(file)) != EOF) {
if (please_display_more_prompt) {
int len = 0;
please_display_more_prompt = 0;
if (please_display_more_prompt) {
lines = 0;
please_display_more_prompt = 0;
len = printf("--More-- ");
if (file != stdin) {
#if _FILE_OFFSET_BITS == 64
@ -160,7 +161,7 @@ extern int more_main(int argc, char **argv)
putc('\b', stdout);
fflush(stdout);
#endif
len=0;
}
/*
@ -183,14 +184,24 @@ extern int more_main(int argc, char **argv)
please_display_more_prompt = 1;
break;
}
if (++lines == terminal_height)
/* Adjust the terminal height for any overlap, so that
* no lines get lost off the top. */
if (len) {
div_t result = div( len, terminal_width);
if (result.quot)
terminal_height-=(result.quot-1);
}
if (++lines == terminal_height) {
please_display_more_prompt = 1;
}
len=0;
}
/*
* If we just read a newline from the file being 'mored' and any
* key other than a return is hit, scroll by one page
*/
putc(c, stdout);
len++;
}
fclose(file);
fflush(stdout);