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units(1): Add 'terse' support

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terse output is used when calling units from another script.
This commit is contained in:
Eitan Adler 2014-07-05 03:17:57 +00:00
parent 18e32ebc89
commit 8d61f393a3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=268277
2 changed files with 24 additions and 11 deletions
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4
usr.bin/units/units.1
View File

@ -26,6 +26,10 @@ If not, print
.Qo
Units data file not found
.Qc
.It Fl t No , Fl -terse
Only print the result. This is used when calling
.Nm
from other programs for easy to parse results.
.It Fl v No , Fl -verbose
Print the units in the conversion output.
Be more verbose in general.

31
usr.bin/units/units.c
View File

@ -78,6 +78,7 @@ static char NULLUNIT[] = "";
static int unitcount;
static int prefixcount;
static bool verbose = false;
static bool terse = false;
static const char * havestr;
static const char * wantstr;
@ -657,14 +658,16 @@ showanswer(struct unittype * have, struct unittype * want)
printf("conformability error\n");
if (verbose)
printf("\t%s = ", havestr);
else
else if (!terse)
printf("\t");
showunit(have);
if (verbose)
printf("\t%s = ", wantstr);
else
printf("\t");
showunit(want);
if (!terse) {
if (verbose)
printf("\t%s = ", wantstr);
else
printf("\t");
showunit(want);
}
}
else if (have->offset != want->offset) {
if (want->quantity)
@ -684,12 +687,14 @@ showanswer(struct unittype * have, struct unittype * want)
ans = have->factor / want->factor;
if (verbose)
printf("\t%s = %.8g * %s\n", havestr, ans, wantstr);
else
else if (terse)
printf("%.8g\n", ans);
else
printf("\t* %.8g\n", ans);
if (verbose)
printf("\t%s = (1 / %.8g) * %s\n", havestr, 1/ans, wantstr);
else
else if (!terse)
printf("\t/ %.8g\n", 1/ans);
}
}
@ -707,8 +712,9 @@ static struct option longopts[] = {
{"help", no_argument, NULL, 'h'},
{"file", required_argument, NULL, 'f'},
{"quiet", no_argument, NULL, 'q'},
{"verbose", no_argument, NULL, 'v'},
{"terse", no_argument, NULL, 't'},
{"unitsfile", no_argument, NULL, 'U'},
{"verbose", no_argument, NULL, 'v'},
{"version", no_argument, NULL, 'V'},
{ 0, 0, 0, 0 }
};
@ -729,7 +735,7 @@ main(int argc, char **argv)
quiet = false;
readfile = false;
while ((optchar = getopt_long(argc, argv, "+hf:qvUV", longopts, NULL)) != -1) {
while ((optchar = getopt_long(argc, argv, "+hf:qtvUV", longopts, NULL)) != -1) {
switch (optchar) {
case 'f':
readfile = true;
@ -741,6 +747,9 @@ main(int argc, char **argv)
case 'q':
quiet = true;
break;
case 't':
terse = true;
break;
case 'v':
verbose = true;
break;
@ -825,5 +834,5 @@ main(int argc, char **argv)
history_end(inhistory);
el_end(el);
return(0);
return (0);
}