Mixing
Environment with argument and optional argument
2
I want to create an environment that receives an argument and an optional argument in such a way that the first argument will be a title and the optional argument will decide whether the title should be justified to the left or centered. It's possible without any package?
macros environments
asked Feb 1 at 17:16
JoanJoan
1027
add a comment |
2
I want to create an environment that receives an argument and an optional argument in such a way that the first argument will be a title and the optional argument will decide whether the title should be justified to the left or centered. It's possible without any package?
macros environments
asked Feb 1 at 17:16
JoanJoan
1027
1
Yes, this is possible and there are many packages, that provide such environments already, e.g.mdframedortcolorbox, with lot of additional features.
– user31729
Feb 1 at 17:25
You should take look at thexparsepackage to do that.
– Bernard
Feb 1 at 17:26
I want to do it without any package.
– Joan
Feb 1 at 17:29
add a comment |
2
2
2
I want to create an environment that receives an argument and an optional argument in such a way that the first argument will be a title and the optional argument will decide whether the title should be justified to the left or centered. It's possible without any package?
macros environments
asked Feb 1 at 17:16
JoanJoan
1027
I want to create an environment that receives an argument and an optional argument in such a way that the first argument will be a title and the optional argument will decide whether the title should be justified to the left or centered. It's possible without any package?
macros environments
macros environments
asked Feb 1 at 17:16
JoanJoan
1027
asked Feb 1 at 17:16
JoanJoan
1027
edited Feb 1 at 22:00
user31729
asked Feb 1 at 17:16
JoanJoan
1027
asked Feb 1 at 17:16
JoanJoan
1027
asked Feb 1 at 17:16
JoanJoan
1027
1027
1
Yes, this is possible and there are many packages, that provide such environments already, e.g.mdframedortcolorbox, with lot of additional features.
– user31729
Feb 1 at 17:25
You should take look at thexparsepackage to do that.
– Bernard
Feb 1 at 17:26
I want to do it without any package.
– Joan
Feb 1 at 17:29
add a comment |
1
Yes, this is possible and there are many packages, that provide such environments already, e.g.mdframedortcolorbox, with lot of additional features.
– user31729
Feb 1 at 17:25
You should take look at thexparsepackage to do that.
– Bernard
Feb 1 at 17:26
I want to do it without any package.
– Joan
Feb 1 at 17:29
1
1
Yes, this is possible and there are many packages, that provide such environments already, e.g.
mdframed or tcolorbox, with lot of additional features.– user31729
Feb 1 at 17:25
Yes, this is possible and there are many packages, that provide such environments already, e.g.
mdframed or tcolorbox, with lot of additional features.– user31729
Feb 1 at 17:25
You should take look at the
xparsepackage to do that.– Bernard
Feb 1 at 17:26
You should take look at the
xparsepackage to do that.– Bernard
Feb 1 at 17:26
I want to do it without any package.
– Joan
Feb 1 at 17:29
I want to do it without any package.
– Joan
Feb 1 at 17:29
add a comment |
3 Answers
3
active
oldest
votes
5
The optional argument can be l or c (default c).
documentclass{article}
makeatletter
newenvironment{something}[2][c]
{begin{csname #1@somethingtitleendcsname}
bfseries #2
end{csname #1@somethingtitleendcsname}}
{paraddvspace{topsep}}
newcommandl@somethingtitle{flushleft}
newcommandc@somethingtitle{center}
makeatother
begin{document}
begin{something}{This is centered}
This is the environment's contents
This is the environment's contents
This is the environment's contents
This is the environment's contents
end{something}
begin{something}[l]{This is left flush}
This is the environment's contents
This is the environment's contents
This is the environment's contents
This is the environment's contents
end{something}
end{document}
answered Feb 1 at 21:53
egregegreg
733k8919313256
I would like to know why you use the char@?
– Joan
Feb 1 at 22:10
@Joan In order to avoid clashes with user macros.
– egreg
Feb 1 at 23:02
in the case that I want to add an optional argument that allows to decide if the title wants to be added to the ToC, how could I do it?
– Joan
Feb 21 at 21:04
add a comment |
4
Without any package: Using an optional argument that is checked with pdfstrcmp (a pdftex primitive).
If #1 is equal to left, the title is left aligned, in any other case it is centered.
documentclass{article}
newenvironment{foo}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
#2%
else
hfil#2hfil%
fi%
medskip
}{}
newcommand{footitleformat}[1]{%
bfseriesMakeUppercase{#1}%
}
newenvironment{fooother}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
footitleformat{#2}%
else
begingroup
centering
footitleformat{#2}%
endgroup
fi%
medskip
}{}
begin{document}
begin{foo}{This is centered}
Foo stuff
end{foo}
begin{foo}[left]{This is not centered}
Other Foo stuff
end{foo}
begin{fooother}{This is centered again}
Yet another Foo stuff
end{fooother}
end{document}
documentclass{article}
newenvironment{foo}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
#2%
else
hfil#2hfil%
fi%
medskip
}{}
begin{document}
begin{foo}{This is centered}
Foo stuff
end{foo}
begin{foo}[left]{This is not centered}
Other Foo stuff
end{foo}
end{document}
I try to use{centeringbfseriesMakeUppercase{#2}}but the text is not center...
– Joan
Feb 1 at 18:01
@Joan: You need an empty line aftercentering
– user31729
Feb 1 at 18:04
Don't understand.
– Joan
Feb 1 at 18:13
@Joan: I changed the answer: I was too short in my explanation ... you need an empty line after the text that is to be centered.
– user31729
Feb 1 at 18:25
1
@Joan: See the answers to the question here -- it takes too long to explain this in a comment
– user31729
Feb 1 at 20:25
|
show 6 more comments
3
Write the environment to take a key-valued optional argument
documentclass{article}
usepackage{xkeyval}
makeatletter
% From the xkeyval documentation (section 3.3 Choice keys)
% http://texdoc.net/texmf-dist/doc/latex/xkeyval/xkeyval.pdf
define@choicekey*{paralign}{align}[valnr]{left,center,right}[center]{% Add align=? key-value
gdeftitlealign{}%
ifcasenrrelax
gdeftitlealign{raggedright}or% 0 = left
gdeftitlealign{centering}or% 1 = center
gdeftitlealign{raggedleft}% 2 = right
fi
}
define@cmdkey{paralign}{format}{}% Add format=? key-value
newenvironment{mytitle}[2]{%
paraddvspace{medskipamount}
begingroup
setkeys{paralign}{%
align,format,% Default settings (align=center,format={})
#1}% Local settings
titlealign cmdKV@paralign@format #2%
par
endgroup
nobreaksmallskip
}{%
paraddvspace{medskipamount}
}
makeatother
begin{document}
begin{mytitle}{Centred titled}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
begin{mytitle}[align=left]{Left-aligned title}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
begin{mytitle}[align=right,format=bfseries]{Right-aligned title}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
end{document}
answered Feb 1 at 20:34
WernerWerner
450k729991709
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
5
The optional argument can be l or c (default c).
documentclass{article}
makeatletter
newenvironment{something}[2][c]
{begin{csname #1@somethingtitleendcsname}
bfseries #2
end{csname #1@somethingtitleendcsname}}
{paraddvspace{topsep}}
newcommandl@somethingtitle{flushleft}
newcommandc@somethingtitle{center}
makeatother
begin{document}
begin{something}{This is centered}
This is the environment's contents
This is the environment's contents
This is the environment's contents
This is the environment's contents
end{something}
begin{something}[l]{This is left flush}
This is the environment's contents
This is the environment's contents
This is the environment's contents
This is the environment's contents
end{something}
end{document}
answered Feb 1 at 21:53
egregegreg
733k8919313256
I would like to know why you use the char@?
– Joan
Feb 1 at 22:10
@Joan In order to avoid clashes with user macros.
– egreg
Feb 1 at 23:02
in the case that I want to add an optional argument that allows to decide if the title wants to be added to the ToC, how could I do it?
– Joan
Feb 21 at 21:04
add a comment |
5
The optional argument can be l or c (default c).
documentclass{article}
makeatletter
newenvironment{something}[2][c]
{begin{csname #1@somethingtitleendcsname}
bfseries #2
end{csname #1@somethingtitleendcsname}}
{paraddvspace{topsep}}
newcommandl@somethingtitle{flushleft}
newcommandc@somethingtitle{center}
makeatother
begin{document}
begin{something}{This is centered}
This is the environment's contents
This is the environment's contents
This is the environment's contents
This is the environment's contents
end{something}
begin{something}[l]{This is left flush}
This is the environment's contents
This is the environment's contents
This is the environment's contents
This is the environment's contents
end{something}
end{document}
answered Feb 1 at 21:53
egregegreg
733k8919313256
I would like to know why you use the char@?
– Joan
Feb 1 at 22:10
@Joan In order to avoid clashes with user macros.
– egreg
Feb 1 at 23:02
in the case that I want to add an optional argument that allows to decide if the title wants to be added to the ToC, how could I do it?
– Joan
Feb 21 at 21:04
add a comment |
5
5
5
The optional argument can be l or c (default c).
documentclass{article}
makeatletter
newenvironment{something}[2][c]
{begin{csname #1@somethingtitleendcsname}
bfseries #2
end{csname #1@somethingtitleendcsname}}
{paraddvspace{topsep}}
newcommandl@somethingtitle{flushleft}
newcommandc@somethingtitle{center}
makeatother
begin{document}
begin{something}{This is centered}
This is the environment's contents
This is the environment's contents
This is the environment's contents
This is the environment's contents
end{something}
begin{something}[l]{This is left flush}
This is the environment's contents
This is the environment's contents
This is the environment's contents
This is the environment's contents
end{something}
end{document}
answered Feb 1 at 21:53
egregegreg
733k8919313256
The optional argument can be l or c (default c).
documentclass{article}
makeatletter
newenvironment{something}[2][c]
{begin{csname #1@somethingtitleendcsname}
bfseries #2
end{csname #1@somethingtitleendcsname}}
{paraddvspace{topsep}}
newcommandl@somethingtitle{flushleft}
newcommandc@somethingtitle{center}
makeatother
begin{document}
begin{something}{This is centered}
This is the environment's contents
This is the environment's contents
This is the environment's contents
This is the environment's contents
end{something}
begin{something}[l]{This is left flush}
This is the environment's contents
This is the environment's contents
This is the environment's contents
This is the environment's contents
end{something}
end{document}
answered Feb 1 at 21:53
egregegreg
733k8919313256
answered Feb 1 at 21:53
egregegreg
733k8919313256
answered Feb 1 at 21:53
egregegreg
733k8919313256
answered Feb 1 at 21:53
egregegreg
733k8919313256
733k8919313256
I would like to know why you use the char@?
– Joan
Feb 1 at 22:10
@Joan In order to avoid clashes with user macros.
– egreg
Feb 1 at 23:02
in the case that I want to add an optional argument that allows to decide if the title wants to be added to the ToC, how could I do it?
– Joan
Feb 21 at 21:04
add a comment |
I would like to know why you use the char@?
– Joan
Feb 1 at 22:10
@Joan In order to avoid clashes with user macros.
– egreg
Feb 1 at 23:02
in the case that I want to add an optional argument that allows to decide if the title wants to be added to the ToC, how could I do it?
– Joan
Feb 21 at 21:04
I would like to know why you use the char
@?– Joan
Feb 1 at 22:10
I would like to know why you use the char
@?– Joan
Feb 1 at 22:10
@Joan In order to avoid clashes with user macros.
– egreg
Feb 1 at 23:02
@Joan In order to avoid clashes with user macros.
– egreg
Feb 1 at 23:02
in the case that I want to add an optional argument that allows to decide if the title wants to be added to the ToC, how could I do it?
– Joan
Feb 21 at 21:04
in the case that I want to add an optional argument that allows to decide if the title wants to be added to the ToC, how could I do it?
– Joan
Feb 21 at 21:04
add a comment |
4
Without any package: Using an optional argument that is checked with pdfstrcmp (a pdftex primitive).
If #1 is equal to left, the title is left aligned, in any other case it is centered.
documentclass{article}
newenvironment{foo}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
#2%
else
hfil#2hfil%
fi%
medskip
}{}
newcommand{footitleformat}[1]{%
bfseriesMakeUppercase{#1}%
}
newenvironment{fooother}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
footitleformat{#2}%
else
begingroup
centering
footitleformat{#2}%
endgroup
fi%
medskip
}{}
begin{document}
begin{foo}{This is centered}
Foo stuff
end{foo}
begin{foo}[left]{This is not centered}
Other Foo stuff
end{foo}
begin{fooother}{This is centered again}
Yet another Foo stuff
end{fooother}
end{document}
documentclass{article}
newenvironment{foo}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
#2%
else
hfil#2hfil%
fi%
medskip
}{}
begin{document}
begin{foo}{This is centered}
Foo stuff
end{foo}
begin{foo}[left]{This is not centered}
Other Foo stuff
end{foo}
end{document}
I try to use{centeringbfseriesMakeUppercase{#2}}but the text is not center...
– Joan
Feb 1 at 18:01
@Joan: You need an empty line aftercentering
– user31729
Feb 1 at 18:04
Don't understand.
– Joan
Feb 1 at 18:13
@Joan: I changed the answer: I was too short in my explanation ... you need an empty line after the text that is to be centered.
– user31729
Feb 1 at 18:25
1
@Joan: See the answers to the question here -- it takes too long to explain this in a comment
– user31729
Feb 1 at 20:25
|
show 6 more comments
4
Without any package: Using an optional argument that is checked with pdfstrcmp (a pdftex primitive).
If #1 is equal to left, the title is left aligned, in any other case it is centered.
documentclass{article}
newenvironment{foo}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
#2%
else
hfil#2hfil%
fi%
medskip
}{}
newcommand{footitleformat}[1]{%
bfseriesMakeUppercase{#1}%
}
newenvironment{fooother}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
footitleformat{#2}%
else
begingroup
centering
footitleformat{#2}%
endgroup
fi%
medskip
}{}
begin{document}
begin{foo}{This is centered}
Foo stuff
end{foo}
begin{foo}[left]{This is not centered}
Other Foo stuff
end{foo}
begin{fooother}{This is centered again}
Yet another Foo stuff
end{fooother}
end{document}
documentclass{article}
newenvironment{foo}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
#2%
else
hfil#2hfil%
fi%
medskip
}{}
begin{document}
begin{foo}{This is centered}
Foo stuff
end{foo}
begin{foo}[left]{This is not centered}
Other Foo stuff
end{foo}
end{document}
I try to use{centeringbfseriesMakeUppercase{#2}}but the text is not center...
– Joan
Feb 1 at 18:01
@Joan: You need an empty line aftercentering
– user31729
Feb 1 at 18:04
Don't understand.
– Joan
Feb 1 at 18:13
@Joan: I changed the answer: I was too short in my explanation ... you need an empty line after the text that is to be centered.
– user31729
Feb 1 at 18:25
1
@Joan: See the answers to the question here -- it takes too long to explain this in a comment
– user31729
Feb 1 at 20:25
|
show 6 more comments
4
4
4
Without any package: Using an optional argument that is checked with pdfstrcmp (a pdftex primitive).
If #1 is equal to left, the title is left aligned, in any other case it is centered.
documentclass{article}
newenvironment{foo}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
#2%
else
hfil#2hfil%
fi%
medskip
}{}
newcommand{footitleformat}[1]{%
bfseriesMakeUppercase{#1}%
}
newenvironment{fooother}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
footitleformat{#2}%
else
begingroup
centering
footitleformat{#2}%
endgroup
fi%
medskip
}{}
begin{document}
begin{foo}{This is centered}
Foo stuff
end{foo}
begin{foo}[left]{This is not centered}
Other Foo stuff
end{foo}
begin{fooother}{This is centered again}
Yet another Foo stuff
end{fooother}
end{document}
documentclass{article}
newenvironment{foo}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
#2%
else
hfil#2hfil%
fi%
medskip
}{}
begin{document}
begin{foo}{This is centered}
Foo stuff
end{foo}
begin{foo}[left]{This is not centered}
Other Foo stuff
end{foo}
end{document}
Without any package: Using an optional argument that is checked with pdfstrcmp (a pdftex primitive).
If #1 is equal to left, the title is left aligned, in any other case it is centered.
documentclass{article}
newenvironment{foo}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
#2%
else
hfil#2hfil%
fi%
medskip
}{}
newcommand{footitleformat}[1]{%
bfseriesMakeUppercase{#1}%
}
newenvironment{fooother}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
footitleformat{#2}%
else
begingroup
centering
footitleformat{#2}%
endgroup
fi%
medskip
}{}
begin{document}
begin{foo}{This is centered}
Foo stuff
end{foo}
begin{foo}[left]{This is not centered}
Other Foo stuff
end{foo}
begin{fooother}{This is centered again}
Yet another Foo stuff
end{fooother}
end{document}
documentclass{article}
newenvironment{foo}[2]{%
ifnumpdfstrcmp{#1}{left}=0%
#2%
else
hfil#2hfil%
fi%
medskip
}{}
begin{document}
begin{foo}{This is centered}
Foo stuff
end{foo}
begin{foo}[left]{This is not centered}
Other Foo stuff
end{foo}
end{document}
edited Feb 1 at 18:25
answered Feb 1 at 17:34
user31729
I try to use{centeringbfseriesMakeUppercase{#2}}but the text is not center...
– Joan
Feb 1 at 18:01
@Joan: You need an empty line aftercentering
– user31729
Feb 1 at 18:04
Don't understand.
– Joan
Feb 1 at 18:13
@Joan: I changed the answer: I was too short in my explanation ... you need an empty line after the text that is to be centered.
– user31729
Feb 1 at 18:25
1
@Joan: See the answers to the question here -- it takes too long to explain this in a comment
– user31729
Feb 1 at 20:25
|
show 6 more comments
I try to use{centeringbfseriesMakeUppercase{#2}}but the text is not center...
– Joan
Feb 1 at 18:01
@Joan: You need an empty line aftercentering
– user31729
Feb 1 at 18:04
Don't understand.
– Joan
Feb 1 at 18:13
@Joan: I changed the answer: I was too short in my explanation ... you need an empty line after the text that is to be centered.
– user31729
Feb 1 at 18:25
1
@Joan: See the answers to the question here -- it takes too long to explain this in a comment
– user31729
Feb 1 at 20:25
I try to use
{centeringbfseriesMakeUppercase{#2}} but the text is not center...– Joan
Feb 1 at 18:01
I try to use
{centeringbfseriesMakeUppercase{#2}} but the text is not center...– Joan
Feb 1 at 18:01
@Joan: You need an empty line after
centering– user31729
Feb 1 at 18:04
@Joan: You need an empty line after
centering– user31729
Feb 1 at 18:04
Don't understand.
– Joan
Feb 1 at 18:13
Don't understand.
– Joan
Feb 1 at 18:13
@Joan: I changed the answer: I was too short in my explanation ... you need an empty line after the text that is to be centered.
– user31729
Feb 1 at 18:25
@Joan: I changed the answer: I was too short in my explanation ... you need an empty line after the text that is to be centered.
– user31729
Feb 1 at 18:25
1
1
@Joan: See the answers to the question here -- it takes too long to explain this in a comment
– user31729
Feb 1 at 20:25
@Joan: See the answers to the question here -- it takes too long to explain this in a comment
– user31729
Feb 1 at 20:25
|
show 6 more comments
3
Write the environment to take a key-valued optional argument
documentclass{article}
usepackage{xkeyval}
makeatletter
% From the xkeyval documentation (section 3.3 Choice keys)
% http://texdoc.net/texmf-dist/doc/latex/xkeyval/xkeyval.pdf
define@choicekey*{paralign}{align}[valnr]{left,center,right}[center]{% Add align=? key-value
gdeftitlealign{}%
ifcasenrrelax
gdeftitlealign{raggedright}or% 0 = left
gdeftitlealign{centering}or% 1 = center
gdeftitlealign{raggedleft}% 2 = right
fi
}
define@cmdkey{paralign}{format}{}% Add format=? key-value
newenvironment{mytitle}[2]{%
paraddvspace{medskipamount}
begingroup
setkeys{paralign}{%
align,format,% Default settings (align=center,format={})
#1}% Local settings
titlealign cmdKV@paralign@format #2%
par
endgroup
nobreaksmallskip
}{%
paraddvspace{medskipamount}
}
makeatother
begin{document}
begin{mytitle}{Centred titled}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
begin{mytitle}[align=left]{Left-aligned title}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
begin{mytitle}[align=right,format=bfseries]{Right-aligned title}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
end{document}
answered Feb 1 at 20:34
WernerWerner
450k729991709
add a comment |
3
Write the environment to take a key-valued optional argument
documentclass{article}
usepackage{xkeyval}
makeatletter
% From the xkeyval documentation (section 3.3 Choice keys)
% http://texdoc.net/texmf-dist/doc/latex/xkeyval/xkeyval.pdf
define@choicekey*{paralign}{align}[valnr]{left,center,right}[center]{% Add align=? key-value
gdeftitlealign{}%
ifcasenrrelax
gdeftitlealign{raggedright}or% 0 = left
gdeftitlealign{centering}or% 1 = center
gdeftitlealign{raggedleft}% 2 = right
fi
}
define@cmdkey{paralign}{format}{}% Add format=? key-value
newenvironment{mytitle}[2]{%
paraddvspace{medskipamount}
begingroup
setkeys{paralign}{%
align,format,% Default settings (align=center,format={})
#1}% Local settings
titlealign cmdKV@paralign@format #2%
par
endgroup
nobreaksmallskip
}{%
paraddvspace{medskipamount}
}
makeatother
begin{document}
begin{mytitle}{Centred titled}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
begin{mytitle}[align=left]{Left-aligned title}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
begin{mytitle}[align=right,format=bfseries]{Right-aligned title}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
end{document}
answered Feb 1 at 20:34
WernerWerner
450k729991709
add a comment |
3
3
3
Write the environment to take a key-valued optional argument
documentclass{article}
usepackage{xkeyval}
makeatletter
% From the xkeyval documentation (section 3.3 Choice keys)
% http://texdoc.net/texmf-dist/doc/latex/xkeyval/xkeyval.pdf
define@choicekey*{paralign}{align}[valnr]{left,center,right}[center]{% Add align=? key-value
gdeftitlealign{}%
ifcasenrrelax
gdeftitlealign{raggedright}or% 0 = left
gdeftitlealign{centering}or% 1 = center
gdeftitlealign{raggedleft}% 2 = right
fi
}
define@cmdkey{paralign}{format}{}% Add format=? key-value
newenvironment{mytitle}[2]{%
paraddvspace{medskipamount}
begingroup
setkeys{paralign}{%
align,format,% Default settings (align=center,format={})
#1}% Local settings
titlealign cmdKV@paralign@format #2%
par
endgroup
nobreaksmallskip
}{%
paraddvspace{medskipamount}
}
makeatother
begin{document}
begin{mytitle}{Centred titled}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
begin{mytitle}[align=left]{Left-aligned title}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
begin{mytitle}[align=right,format=bfseries]{Right-aligned title}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
end{document}
answered Feb 1 at 20:34
WernerWerner
450k729991709
Write the environment to take a key-valued optional argument
documentclass{article}
usepackage{xkeyval}
makeatletter
% From the xkeyval documentation (section 3.3 Choice keys)
% http://texdoc.net/texmf-dist/doc/latex/xkeyval/xkeyval.pdf
define@choicekey*{paralign}{align}[valnr]{left,center,right}[center]{% Add align=? key-value
gdeftitlealign{}%
ifcasenrrelax
gdeftitlealign{raggedright}or% 0 = left
gdeftitlealign{centering}or% 1 = center
gdeftitlealign{raggedleft}% 2 = right
fi
}
define@cmdkey{paralign}{format}{}% Add format=? key-value
newenvironment{mytitle}[2]{%
paraddvspace{medskipamount}
begingroup
setkeys{paralign}{%
align,format,% Default settings (align=center,format={})
#1}% Local settings
titlealign cmdKV@paralign@format #2%
par
endgroup
nobreaksmallskip
}{%
paraddvspace{medskipamount}
}
makeatother
begin{document}
begin{mytitle}{Centred titled}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
begin{mytitle}[align=left]{Left-aligned title}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
begin{mytitle}[align=right,format=bfseries]{Right-aligned title}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus placerat
enim ligula, a efficitur augue sodales nonldots
end{mytitle}
end{document}
answered Feb 1 at 20:34
WernerWerner
450k729991709
answered Feb 1 at 20:34
WernerWerner
450k729991709
answered Feb 1 at 20:34
WernerWerner
450k729991709
answered Feb 1 at 20:34
WernerWerner
450k729991709
450k729991709
add a comment |
add a comment |
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1
Yes, this is possible and there are many packages, that provide such environments already, e.g.
mdframedortcolorbox, with lot of additional features.– user31729
Feb 1 at 17:25
You should take look at the
xparsepackage to do that.– Bernard
Feb 1 at 17:26
I want to do it without any package.
– Joan
Feb 1 at 17:29