Warning: Tab Character

older
Ambiguous type of WriterT result...

Jeon-Young Kang

21 Nov 2015 21 Nov '15

2:13 p.m.

Hello everyone. I am a newbie of Haskell, using Textmate on mac. I got the following warning. How can I fix it? Warning: Tab character Ok, modules loaded: Main. Sincerely, Young

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Dan Stromberg

21 Nov 21 Nov

3:14 p.m.

Perhaps enable soft tabs? https://manual.macromates.com/en/working_with_text This is an issue in Python too (at least from PEP8's perspective) - but note that many "make" programs require tabs instead of spaces. On Sat, Nov 21, 2015 at 11:13 AM, Jeon-Young Kang wrote:

...

Hello everyone.

I am a newbie of Haskell, using Textmate on mac.

I got the following warning. How can I fix it?

Warning:

Tab character

Ok, modules loaded: Main.

Sincerely, Young

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

Jeon-Young Kang

3:36 p.m.

I've tried to choose "instead of spaces". But there is no option of mine (Textmate 2 beta). On Sat, Nov 21, 2015 at 3:14 PM, Dan Stromberg wrote:

...

Perhaps enable soft tabs? https://manual.macromates.com/en/working_with_text

This is an issue in Python too (at least from PEP8's perspective) - but note that many "make" programs require tabs instead of spaces.

On Sat, Nov 21, 2015 at 11:13 AM, Jeon-Young Kang wrote:

...
Hello everyone.

I am a newbie of Haskell, using Textmate on mac.

I got the following warning. How can I fix it?

Warning:

Tab character

Ok, modules loaded: Main.

Sincerely, Young

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Department of Geography State University of New York at Buffalo jykang22@gmail.com Jeon-Young Kang

David Moberg

6:01 p.m.

Have you found "soft tabs"? That option will make TextMate use spaces instead of tab characters. Read 4.11 "Using Spaces Instead of Tabs" in Dan Strombergs link for instrucitons. 2015-11-21 21:36 GMT+01:00 Jeon-Young Kang :

...

I've tried to choose "instead of spaces". But there is no option of mine (Textmate 2 beta).

On Sat, Nov 21, 2015 at 3:14 PM, Dan Stromberg wrote:

...
Perhaps enable soft tabs? https://manual.macromates.com/en/working_with_text

This is an issue in Python too (at least from PEP8's perspective) - but note that many "make" programs require tabs instead of spaces.

On Sat, Nov 21, 2015 at 11:13 AM, Jeon-Young Kang wrote:

...
Hello everyone.

I am a newbie of Haskell, using Textmate on mac.

I got the following warning. How can I fix it?

Warning:

Tab character

Ok, modules loaded: Main.

Sincerely, Young

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Department of Geography State University of New York at Buffalo

jykang22@gmail.com

Jeon-Young Kang

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

Thomas Jakway

6:34 p.m.

Why would make require tabs...? Admittedly it's been a long time since I've written any makefiles by hand but I always use spaces instead of tabs and have never had any problems. On Nov 21, 2015 6:01 PM, David Moberg wrote:

...

Have you found "soft tabs"? That option will make TextMate use spaces instead of tab characters. Read 4.11 "Using Spaces Instead of Tabs" in Dan Strombergs link for instrucitons.

2015-11-21 21:36 GMT+01:00 Jeon-Young Kang :

...
I've tried to choose "instead of spaces". But there is no option of mine (Textmate 2 beta).

On Sat, Nov 21, 2015 at 3:14 PM, Dan Stromberg wrote:

...
Perhaps enable soft tabs? https://manual.macromates.com/en/working_with_text

This is an issue in Python too (at least from PEP8's perspective) - but note that many "make" programs require tabs instead of spaces.

On Sat, Nov 21, 2015 at 11:13 AM, Jeon-Young Kang wrote:

...
Hello everyone.

I am a newbie of Haskell, using Textmate on mac.

I got the following warning. How can I fix it?

Warning:

Tab character

Ok, modules loaded: Main.

Sincerely, Young

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Department of Geography State University of New York at Buffalo

jykang22@gmail.com Jeon-Young Kang

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

Jeon-Young Kang

6:37 p.m.

Thank you all. I found out the way to replacing Tab with Space. On Sat, Nov 21, 2015 at 6:34 PM, Thomas Jakway wrote:

...

Why would make require tabs...? Admittedly it's been a long time since I've written any makefiles by hand but I always use spaces instead of tabs and have never had any problems.

On Nov 21, 2015 6:01 PM, David Moberg wrote:

...
Have you found "soft tabs"? That option will make TextMate use spaces

instead of tab characters. Read 4.11 "Using Spaces Instead of Tabs" in Dan Strombergs link for instrucitons.

...
2015-11-21 21:36 GMT+01:00 Jeon-Young Kang :

...
I've tried to choose "instead of spaces". But there is no option of

mine (Textmate 2 beta).

...
...
On Sat, Nov 21, 2015 at 3:14 PM, Dan Stromberg

wrote:

...
...
Perhaps enable soft tabs? https://manual.macromates.com/en/working_with_text

This is an issue in Python too (at least from PEP8's perspective) -

but note that many "make" programs require tabs instead of spaces.

...
On Sat, Nov 21, 2015 at 11:13 AM, Jeon-Young Kang

wrote:

...
...
Hello everyone.

I am a newbie of Haskell, using Textmate on mac.

I got the following warning. How can I fix it?

Warning:

Tab character

Ok, modules loaded: Main.

Sincerely, Young

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Department of Geography State University of New York at Buffalo

jykang22@gmail.com

Jeon-Young Kang

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Department of Geography State University of New York at Buffalo jykang22@gmail.com Jeon-Young Kang

Dan Stromberg

7:44 p.m.

I believe the first version of make required tabs, but some subsequent versions have relaxed that requirement to make things easier. Here's an example on a Linux Mint system (the 20's are of course spaces) : $ od -cx < Makefile cmd output started 2015 Sat Nov 21 04:39:47 PM PST 0000000 \n g o : \n . / t \n \n 670a 3a6f 200a 2020 2e20 742f 0a0a 0000016 above cmd output done 2015 Sat Nov 21 04:39:47 PM PST dstromberg@dell-inspiron:/var/tmp/make-tabs i686-pc-linux-gnu 25234 $ make cmd output started 2015 Sat Nov 21 04:39:48 PM PST Makefile:3: *** missing separator. Stop. above cmd output done 2015 Sat Nov 21 04:39:48 PM PST dstromberg@dell-inspiron:/var/tmp/make-tabs i686-pc-linux-gnu 25234 $ make --version cmd output started 2015 Sat Nov 21 04:39:53 PM PST GNU Make 3.81 Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. This program built for i686-pc-linux-gnu above cmd output done 2015 Sat Nov 21 04:39:53 PM PST dstromberg@dell-inspiron:/var/tmp/make-tabs i686-pc-linux-gnu 25234 I'll add that vim's Makefile syntax highlighting puts the space-indented line in red, suggesting an error. Changing the spaces to a single tab makes the red go away. HTH On Sat, Nov 21, 2015 at 3:34 PM, Thomas Jakway wrote:

...

Why would make require tabs...? Admittedly it's been a long time since I've written any makefiles by hand but I always use spaces instead of tabs and have never had any problems.

On Nov 21, 2015 6:01 PM, David Moberg wrote:

...
Have you found "soft tabs"? That option will make TextMate use spaces

instead of tab characters. Read 4.11 "Using Spaces Instead of Tabs" in Dan Strombergs link for instrucitons.

...
2015-11-21 21:36 GMT+01:00 Jeon-Young Kang :

...
I've tried to choose "instead of spaces". But there is no option of

mine (Textmate 2 beta).

...
...
On Sat, Nov 21, 2015 at 3:14 PM, Dan Stromberg

wrote:

...
...
Perhaps enable soft tabs? https://manual.macromates.com/en/working_with_text

This is an issue in Python too (at least from PEP8's perspective) -

but note that many "make" programs require tabs instead of spaces.

...
On Sat, Nov 21, 2015 at 11:13 AM, Jeon-Young Kang

wrote:

...
...
Hello everyone.

I am a newbie of Haskell, using Textmate on mac.

I got the following warning. How can I fix it?

Warning:

Tab character

Ok, modules loaded: Main.

Sincerely, Young

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Department of Geography State University of New York at Buffalo

jykang22@gmail.com

Jeon-Young Kang

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

Jeon-Young Kang

8:03 p.m.

Thanks! I figured out. On Sat, Nov 21, 2015 at 7:44 PM, Dan Stromberg wrote:

...

I believe the first version of make required tabs, but some subsequent versions have relaxed that requirement to make things easier.

Here's an example on a Linux Mint system (the 20's are of course spaces) : $ od -cx < Makefile cmd output started 2015 Sat Nov 21 04:39:47 PM PST 0000000 \n g o : \n . / t \n \n 670a 3a6f 200a 2020 2e20 742f 0a0a 0000016 above cmd output done 2015 Sat Nov 21 04:39:47 PM PST dstromberg@dell-inspiron:/var/tmp/make-tabs i686-pc-linux-gnu 25234

$ make cmd output started 2015 Sat Nov 21 04:39:48 PM PST Makefile:3: *** missing separator. Stop. above cmd output done 2015 Sat Nov 21 04:39:48 PM PST dstromberg@dell-inspiron:/var/tmp/make-tabs i686-pc-linux-gnu 25234

$ make --version cmd output started 2015 Sat Nov 21 04:39:53 PM PST GNU Make 3.81 Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

This program built for i686-pc-linux-gnu above cmd output done 2015 Sat Nov 21 04:39:53 PM PST dstromberg@dell-inspiron:/var/tmp/make-tabs i686-pc-linux-gnu 25234

I'll add that vim's Makefile syntax highlighting puts the space-indented line in red, suggesting an error. Changing the spaces to a single tab makes the red go away.

HTH

On Sat, Nov 21, 2015 at 3:34 PM, Thomas Jakway wrote:

...
Why would make require tabs...? Admittedly it's been a long time since I've written any makefiles by hand but I always use spaces instead of tabs and have never had any problems.

On Nov 21, 2015 6:01 PM, David Moberg wrote:

...
Have you found "soft tabs"? That option will make TextMate use spaces

instead of tab characters. Read 4.11 "Using Spaces Instead of Tabs" in Dan Strombergs link for instrucitons.

...
2015-11-21 21:36 GMT+01:00 Jeon-Young Kang :

...
I've tried to choose "instead of spaces". But there is no option of

mine (Textmate 2 beta).

...
...
On Sat, Nov 21, 2015 at 3:14 PM, Dan Stromberg

wrote:

...
...
Perhaps enable soft tabs? https://manual.macromates.com/en/working_with_text

This is an issue in Python too (at least from PEP8's perspective) -

but note that many "make" programs require tabs instead of spaces.

...
On Sat, Nov 21, 2015 at 11:13 AM, Jeon-Young Kang

wrote:

...
...
Hello everyone.

I am a newbie of Haskell, using Textmate on mac.

I got the following warning. How can I fix it?

Warning:

Tab character

Ok, modules loaded: Main.

Sincerely, Young

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Department of Geography State University of New York at Buffalo

jykang22@gmail.com

Jeon-Young Kang

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Department of Geography State University of New York at Buffalo jykang22@gmail.com Jeon-Young Kang

Thomas Jakway

8:22 p.m.

Huh, cool. I had no idea. Thanks! On Nov 21, 2015 7:44 PM, Dan Stromberg wrote:

...

I believe the first version of make required tabs, but some subsequent versions have relaxed that requirement to make things easier.

Here's an example on a Linux Mint system (the 20's are of course spaces) : $ od -cx < Makefile cmd output started 2015 Sat Nov 21 04:39:47 PM PST 0000000 \n   g   o   : \n                   .   /   t \n \n            670a    3a6f    200a    2020    2e20    742f    0a0a 0000016 above cmd output done    2015 Sat Nov 21 04:39:47 PM PST dstromberg@dell-inspiron:/var/tmp/make-tabs i686-pc-linux-gnu 25234

$ make cmd output started 2015 Sat Nov 21 04:39:48 PM PST Makefile:3: *** missing separator. Stop. above cmd output done    2015 Sat Nov 21 04:39:48 PM PST dstromberg@dell-inspiron:/var/tmp/make-tabs i686-pc-linux-gnu 25234

$ make --version cmd output started 2015 Sat Nov 21 04:39:53 PM PST GNU Make 3.81 Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

This program built for i686-pc-linux-gnu above cmd output done    2015 Sat Nov 21 04:39:53 PM PST dstromberg@dell-inspiron:/var/tmp/make-tabs i686-pc-linux-gnu 25234

I'll add that vim's Makefile syntax highlighting puts the space-indented line in red, suggesting an error. Changing the spaces to a single tab makes the red go away.

HTH

On Sat, Nov 21, 2015 at 3:34 PM, Thomas Jakway wrote:

...
Why would make require tabs...? Admittedly it's been a long time since I've written any makefiles by hand but I always use spaces instead of tabs and have never had any problems.

On Nov 21, 2015 6:01 PM, David Moberg wrote:

...
Have you found "soft tabs"? That option will make TextMate use spaces instead of tab characters. Read 4.11 "Using Spaces Instead of Tabs" in Dan Strombergs link for instrucitons.

2015-11-21 21:36 GMT+01:00 Jeon-Young Kang :

...
I've tried to choose "instead of spaces". But there is no option of mine (Textmate 2 beta).

On Sat, Nov 21, 2015 at 3:14 PM, Dan Stromberg wrote:

...
Perhaps enable soft tabs? https://manual.macromates.com/en/working_with_text

This is an issue in Python too (at least from PEP8's perspective) - but note that many "make" programs require tabs instead of spaces.

On Sat, Nov 21, 2015 at 11:13 AM, Jeon-Young Kang wrote:

...
Hello everyone.

I am a newbie of Haskell, using Textmate on mac.

I got the following warning. How can I fix it?

Warning:

Tab character

Ok, modules loaded: Main.

Sincerely, Young

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Department of Geography State University of New York at Buffalo

jykang22@gmail.com Jeon-Young Kang

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

_______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

-- Dan Stromberg

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Dan Stromberg
David Moberg
Jeon-Young Kang
Thomas Jakway