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From: Brad Knotwell <bknotwell@yahoo.com>
To: Org-mode <emacs-orgmode@gnu.org>
Subject: a small bug in ob-lua.el
Date: Sat, 29 Dec 2018 17:48:34 +0000 (UTC)	[thread overview]
Message-ID: <437921843.11633137.1546105714093@mail.yahoo.com> (raw)
In-Reply-To: 437921843.11633137.1546105714093.ref@mail.yahoo.com

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Hello all--
I've been using the babel integration with Lua and it has a bug worth noting--multi-line header argument variables that are tangled to a file will be tangled in a way lua doesn't interpret correctly.  To use a specific example:
#+NAME: csvdata#+BEGIN_EXAMPLEx,y,z,zz1,2,3,"hi"4,5,6,"hi,hi"7,8,9,"hi,hi,hi"#+END_EXAMPLE
#+BEGIN_SRC lua :var csv=csvdata :tangle test.lua
print(csv)#+END_SRC
tangles to the (python default?) following:

csv="""x,y,z,zz

1,2,3,\"hi\"

4,5,6,\"hi,hi\"

7,8,9,\"hi,hi,hi\"

"""



print(csv)
which Lua won't parse.  It would parse the following however:

csv=[=[x,y,z,zz

1,2,3,\"hi\"

4,5,6,\"hi,hi\"

7,8,9,\"hi,hi,hi\"

]=]



print(csv)
Furthermore, it will also remove the need to escape the internal double quote characters so you could have even cleaner output:

csv=[=[x,y,z,zz

1,2,3,"hi"

4,5,6,"hi,hi"

7,8,9,"hi,hi,hi"

]=]

The following trivial patch resolves it and tangles to a file that Lua can evaluate:

csv=[=[x,y,z,zz

1,2,3,"hi"

4,5,6,"hi,hig"

7,8,9,"hi,hi,hi"

]=]




print(csv)


diff --git a/lisp/ob-lua.el b/lisp/ob-lua.elindex 442ea568b..4625b3202 100644--- a/lisp/ob-lua.el+++ b/lisp/ob-lua.el@@ -148,7 +148,7 @@ specifying a variable of the same value."     (if (eq var 'hline)         org-babel-lua-hline-to       (format-       (if (and (stringp var) (string-match "[\n\r]" var)) "\"\"%S\"\"" "%S")+       (if (and (stringp var) (string-match "[\n\r]" var)) "[=[%s]=]" "%S")        (if (stringp var) (substring-no-properties var) var)))))  (defun org-babel-lua-table-or-string (results)
Thx.
--Brad

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next      parent reply	other threads:[~2018-12-29 18:01 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <437921843.11633137.1546105714093.ref@mail.yahoo.com>
2018-12-29 17:48 ` Brad Knotwell [this message]
2019-01-12 20:39   ` a small bug in ob-lua.el Kyle Meyer

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