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mscan: use tty width

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This commit is contained in:
Christian Neukirchen 2016-07-20 15:06:31 +02:00
parent e709f6f588
commit 2c2be8bd37
1 changed files with 14 additions and 5 deletions
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19
mscan.c
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@ -1,5 +1,6 @@
#define _GNU_SOURCE #define _GNU_SOURCE
#include <sys/ioctl.h>
#include <sys/stat.h> #include <sys/stat.h>
#include <sys/types.h> #include <sys/types.h>
@ -15,7 +16,9 @@
#include "blaze822.h" #include "blaze822.h"
wchar_t replacement = '?'; static int cols;
static wchar_t replacement = L'?';
static char *cur;
void void
u8putstr(FILE *out, char *s, size_t l, int pad) u8putstr(FILE *out, char *s, size_t l, int pad)
@ -44,8 +47,6 @@ u8putstr(FILE *out, char *s, size_t l, int pad)
putc(' ', out); putc(' ', out);
} }
static char *cur;
void void
oneline(char *file) oneline(char *file)
{ {
@ -62,7 +63,7 @@ oneline(char *file)
struct message *msg = blaze822(file); struct message *msg = blaze822(file);
if (!msg) { if (!msg) {
int p = 80-38-3-indent; int p = cols-38-3-indent;
printf("%*.*s\\_ %*.*s\n", -38 - indent, 38 + indent, "", printf("%*.*s\\_ %*.*s\n", -38 - indent, 38 + indent, "",
-p, p, file); -p, p, file);
return; return;
@ -141,7 +142,7 @@ oneline(char *file)
int z; int z;
for (z = 0; z < indent; z++) for (z = 0; z < indent; z++)
printf(" "); printf(" ");
u8putstr(stdout, subjdec, 80-38-indent, 0); u8putstr(stdout, subjdec, cols-38-indent, 0);
printf("\n"); printf("\n");
blaze822_free(msg); blaze822_free(msg);
@ -154,6 +155,14 @@ main(int argc, char *argv[])
if (wcwidth(0xFFFD) > 0) if (wcwidth(0xFFFD) > 0)
replacement = 0xFFFD; replacement = 0xFFFD;
struct winsize w;
if (ioctl(1, TIOCGWINSZ, &w) == 0)
cols = w.ws_col;
if (getenv("COLUMNS"))
cols = atoi(getenv("COLUMNS"));
if (cols <= 40)
cols = 80;
char *seqmap = blaze822_seq_open(0); char *seqmap = blaze822_seq_open(0);
blaze822_seq_load(seqmap); blaze822_seq_load(seqmap);
cur = blaze822_seq_cur(); cur = blaze822_seq_cur();