If you have a lot of strings with the same format, look at the header to
printf (run open 'printf' to see the file). The adverb vbsprintf
creates a verb that runs faster when repeated.
Henry Rich
On 2/18/2013 10:17 AM, Devon McCormick wrote:
I like the "sprintf" method, Martin - I hadn't known about that. It makes
my multiple cases version neater:
]str=. 'Hello, %s.',LF,'Nice to meet you.',LF,'%s'
Hello, %s.
Nice to meet you.
%s
]nmsdts=. >_2<\'Dave';'1/1/2001';'Fred';'2/18/2013'
+----+---------+
|Dave|1/1/2001 |
+----+---------+
|Fred|2/18/2013|
+----+---------+
str sprintf"1 nmsdts
Hello, Dave.
Nice to meet you.
1/1/2001
Hello, Fred.
Nice to meet you.
2/18/2013
$str sprintf"1 nmsdts
2 40
On Mon, Feb 18, 2013 at 8:32 AM, Raul Miller <[email protected]> wrote:
Here's a quick implementation:
template=:1 :0
assert. -. 0 e. }., I. '{}' =/ m NB. {} syntax check
assert. (,2) -: }.$y NB. need two cols: names; values
nams=. {."1 ,.y
vals=. {:"1 ,.y
subst=. vals {::~ nams i. <a
;(+/\@e.&'{}' <@({. subst@]^:('{'=[) }.)/. ]) m
)
Example use:
'{this} food' template ,:'this';'that'
that food
or, given
example=: 0 :0 template
Hello {name},
Nice to meet you.
{date}
)
This would also be an example:
example (;:'name date'),.'George';'today'
FYI,
--
Raul
On Mon, Feb 18, 2013 at 12:18 AM, June Kim (김창준) <[email protected]>
wrote:
Hello
I am looking for a string template library in J. Is there something like
what's following(it's in Python):
"""
... Hello {name},
... Nice to meet you.
... {date}
... """.format(**dict(name="David", date="2013.2.18"))
'\nHello David,\nNice to meet you.\n2013.2.18\n'
print _
Hello David,
Nice to meet you.
2013.2.18
I think I can write a verb in J, but firstly I wanted to check if there
is
something out there already.
June
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