[builtin/printf] Support width and precision for %()T

osh/builtin_printf.py

@@ -115,7 +115,7 @@ def _ParseFormatStr(self):
       p_die(msg, token=self.cur_token)
 
     # Do this check AFTER the floating point checks
-    if part.precision and part.type.val not in 'fs':
+    if part.precision and part.type.val[-1] not in 'fsT':
       p_die("precision can't be specified when here",
             token=part.precision)
 
@@ -329,6 +329,8 @@ def Run(self, cmd_val):
               elif d == -2: # shell start time
                 d = shell_start_time
               s = time.strftime(typ[1:-2], time.localtime(d));
+              if precision is not None:
+                s = s[:precision]  # truncate
 
             else:
               raise AssertionError()

spec/builtin-printf.test.sh

@@ -584,3 +584,19 @@ status=0
 ## N-I dash/mksh/zsh/ash STDOUT:
 status=1
 ## END
+
+#### %10.5(strftime format)T
+# The result depends on timezone
+export TZ=Asia/Tokyo
+printf '[%10.5(%Y-%m-%d)T]\n' 1557978599
+export TZ=US/Eastern
+printf '[%10.5(%Y-%m-%d)T]\n' 1557978599
+echo status=$?
+## STDOUT:
+[     2019-]
+[     2019-]
+status=0
+## END
+## N-I dash/mksh/zsh/ash STDOUT:
+[[status=1
+## END