Auto Detect Last Paragraph and Pass to Macro












4















The MWE below produces the desired results:




enter image description here




via the ProcessLastPara{} which applies a desired parshape to the given (last) paragraph.



Questions:



The MWE below required me to manually identify both the start and end of the last paragraph so it could be passed on to the ProcessLastPara{} macro.





  1. Is it possible to achieve the effect of ProcessLastPara{<text>} by simply identifying the beginning of the last paragraph. That is, can I change the call to SetMyText to be of the form:



    SetMyText{%
    Other Text...

    LastParaBeginsHere
    Last Para Text%
    }%


    so that LastParaBeginsHere invokesProcessLastPara{Last Para Text}.



    This would need some error checking to make sure that LastParaBeginsHere really was indeed the last paragraph defined by SetMyText.



  2. Is it possible to auto detect where the last paragraph begins and ends so that I do not need to manually invoke ProcessLastPara{} and identify the text of the last paragraph?



Notes:




  • This needs to work for the case where the text is defined in a macro before it is typeset.

  • The solution of defLastParaBeginsHere{LastParShape} won't work as I need to process the last paragraph text to determine the appropriate parshape to apply. That is, this is a 2 step process, the details of which are not included here to simplify the test case.


Code:



documentclass{article}

usepackage[paperwidth=15cm]{geometry}

makeatletter
newcommand{@MyText}{}
newcommand{SetMyText}[1]{def@MyText{#1}}%
newcommand*{OutputMyText}{@MyText}%
makeatother

newcommand*{LastParShape}{%
parshape 5
0.10hsize 0.80hsize
0.15hsize 0.70hsize
0.20hsize 0.60hsize
0.25hsize 0.50hsize
0.30hsize 0.40hsize
}%


newcommand*{ProcessLastPara}[1]{%
LastParShape
#1}%

begin{document}
SetMyText{%
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua.

Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat.

ProcessLastPara{%
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
deserunt mollit anim id est laborum.}%
}%
%% ----------------
OutputMyText%
end{document}









share|improve this question























  • do you want the para indent on the first line of your triangle, I cancelled it out (not quite correctly) in my answer but I could remove it to get the same shape that you and egreg show...

    – David Carlisle
    Dec 12 '18 at 9:15











  • @DavidCarlisle: Removing indentation of the last para is preferrable.

    – Peter Grill
    Dec 12 '18 at 17:59
















4















The MWE below produces the desired results:




enter image description here




via the ProcessLastPara{} which applies a desired parshape to the given (last) paragraph.



Questions:



The MWE below required me to manually identify both the start and end of the last paragraph so it could be passed on to the ProcessLastPara{} macro.





  1. Is it possible to achieve the effect of ProcessLastPara{<text>} by simply identifying the beginning of the last paragraph. That is, can I change the call to SetMyText to be of the form:



    SetMyText{%
    Other Text...

    LastParaBeginsHere
    Last Para Text%
    }%


    so that LastParaBeginsHere invokesProcessLastPara{Last Para Text}.



    This would need some error checking to make sure that LastParaBeginsHere really was indeed the last paragraph defined by SetMyText.



  2. Is it possible to auto detect where the last paragraph begins and ends so that I do not need to manually invoke ProcessLastPara{} and identify the text of the last paragraph?



Notes:




  • This needs to work for the case where the text is defined in a macro before it is typeset.

  • The solution of defLastParaBeginsHere{LastParShape} won't work as I need to process the last paragraph text to determine the appropriate parshape to apply. That is, this is a 2 step process, the details of which are not included here to simplify the test case.


Code:



documentclass{article}

usepackage[paperwidth=15cm]{geometry}

makeatletter
newcommand{@MyText}{}
newcommand{SetMyText}[1]{def@MyText{#1}}%
newcommand*{OutputMyText}{@MyText}%
makeatother

newcommand*{LastParShape}{%
parshape 5
0.10hsize 0.80hsize
0.15hsize 0.70hsize
0.20hsize 0.60hsize
0.25hsize 0.50hsize
0.30hsize 0.40hsize
}%


newcommand*{ProcessLastPara}[1]{%
LastParShape
#1}%

begin{document}
SetMyText{%
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua.

Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat.

ProcessLastPara{%
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
deserunt mollit anim id est laborum.}%
}%
%% ----------------
OutputMyText%
end{document}









share|improve this question























  • do you want the para indent on the first line of your triangle, I cancelled it out (not quite correctly) in my answer but I could remove it to get the same shape that you and egreg show...

    – David Carlisle
    Dec 12 '18 at 9:15











  • @DavidCarlisle: Removing indentation of the last para is preferrable.

    – Peter Grill
    Dec 12 '18 at 17:59














4












4








4


1






The MWE below produces the desired results:




enter image description here




via the ProcessLastPara{} which applies a desired parshape to the given (last) paragraph.



Questions:



The MWE below required me to manually identify both the start and end of the last paragraph so it could be passed on to the ProcessLastPara{} macro.





  1. Is it possible to achieve the effect of ProcessLastPara{<text>} by simply identifying the beginning of the last paragraph. That is, can I change the call to SetMyText to be of the form:



    SetMyText{%
    Other Text...

    LastParaBeginsHere
    Last Para Text%
    }%


    so that LastParaBeginsHere invokesProcessLastPara{Last Para Text}.



    This would need some error checking to make sure that LastParaBeginsHere really was indeed the last paragraph defined by SetMyText.



  2. Is it possible to auto detect where the last paragraph begins and ends so that I do not need to manually invoke ProcessLastPara{} and identify the text of the last paragraph?



Notes:




  • This needs to work for the case where the text is defined in a macro before it is typeset.

  • The solution of defLastParaBeginsHere{LastParShape} won't work as I need to process the last paragraph text to determine the appropriate parshape to apply. That is, this is a 2 step process, the details of which are not included here to simplify the test case.


Code:



documentclass{article}

usepackage[paperwidth=15cm]{geometry}

makeatletter
newcommand{@MyText}{}
newcommand{SetMyText}[1]{def@MyText{#1}}%
newcommand*{OutputMyText}{@MyText}%
makeatother

newcommand*{LastParShape}{%
parshape 5
0.10hsize 0.80hsize
0.15hsize 0.70hsize
0.20hsize 0.60hsize
0.25hsize 0.50hsize
0.30hsize 0.40hsize
}%


newcommand*{ProcessLastPara}[1]{%
LastParShape
#1}%

begin{document}
SetMyText{%
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua.

Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat.

ProcessLastPara{%
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
deserunt mollit anim id est laborum.}%
}%
%% ----------------
OutputMyText%
end{document}









share|improve this question














The MWE below produces the desired results:




enter image description here




via the ProcessLastPara{} which applies a desired parshape to the given (last) paragraph.



Questions:



The MWE below required me to manually identify both the start and end of the last paragraph so it could be passed on to the ProcessLastPara{} macro.





  1. Is it possible to achieve the effect of ProcessLastPara{<text>} by simply identifying the beginning of the last paragraph. That is, can I change the call to SetMyText to be of the form:



    SetMyText{%
    Other Text...

    LastParaBeginsHere
    Last Para Text%
    }%


    so that LastParaBeginsHere invokesProcessLastPara{Last Para Text}.



    This would need some error checking to make sure that LastParaBeginsHere really was indeed the last paragraph defined by SetMyText.



  2. Is it possible to auto detect where the last paragraph begins and ends so that I do not need to manually invoke ProcessLastPara{} and identify the text of the last paragraph?



Notes:




  • This needs to work for the case where the text is defined in a macro before it is typeset.

  • The solution of defLastParaBeginsHere{LastParShape} won't work as I need to process the last paragraph text to determine the appropriate parshape to apply. That is, this is a 2 step process, the details of which are not included here to simplify the test case.


Code:



documentclass{article}

usepackage[paperwidth=15cm]{geometry}

makeatletter
newcommand{@MyText}{}
newcommand{SetMyText}[1]{def@MyText{#1}}%
newcommand*{OutputMyText}{@MyText}%
makeatother

newcommand*{LastParShape}{%
parshape 5
0.10hsize 0.80hsize
0.15hsize 0.70hsize
0.20hsize 0.60hsize
0.25hsize 0.50hsize
0.30hsize 0.40hsize
}%


newcommand*{ProcessLastPara}[1]{%
LastParShape
#1}%

begin{document}
SetMyText{%
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua.

Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat.

ProcessLastPara{%
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
deserunt mollit anim id est laborum.}%
}%
%% ----------------
OutputMyText%
end{document}






macros line-breaking paragraphs






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asked Dec 12 '18 at 7:43









Peter GrillPeter Grill

165k25438752




165k25438752













  • do you want the para indent on the first line of your triangle, I cancelled it out (not quite correctly) in my answer but I could remove it to get the same shape that you and egreg show...

    – David Carlisle
    Dec 12 '18 at 9:15











  • @DavidCarlisle: Removing indentation of the last para is preferrable.

    – Peter Grill
    Dec 12 '18 at 17:59



















  • do you want the para indent on the first line of your triangle, I cancelled it out (not quite correctly) in my answer but I could remove it to get the same shape that you and egreg show...

    – David Carlisle
    Dec 12 '18 at 9:15











  • @DavidCarlisle: Removing indentation of the last para is preferrable.

    – Peter Grill
    Dec 12 '18 at 17:59

















do you want the para indent on the first line of your triangle, I cancelled it out (not quite correctly) in my answer but I could remove it to get the same shape that you and egreg show...

– David Carlisle
Dec 12 '18 at 9:15





do you want the para indent on the first line of your triangle, I cancelled it out (not quite correctly) in my answer but I could remove it to get the same shape that you and egreg show...

– David Carlisle
Dec 12 '18 at 9:15













@DavidCarlisle: Removing indentation of the last para is preferrable.

– Peter Grill
Dec 12 '18 at 17:59





@DavidCarlisle: Removing indentation of the last para is preferrable.

– Peter Grill
Dec 12 '18 at 17:59










2 Answers
2






active

oldest

votes


















5














documentclass{article}

usepackage[paperwidth=15cm]{geometry}

makeatletter
newcommand{@MyText}{}
newcommand{SetMyText}[1]{def@MyText{#1LastParShapepar}}%
newcommand*{OutputMyText}{@MyText}%
makeatother

newcommand*{LastParShape}{%
parshape 5
dimexpr0.10hsize-parindentrelax dimexpr0.80hsize+parindentrelax
0.15hsize 0.70hsize
0.20hsize 0.60hsize
0.25hsize 0.50hsize
0.30hsize 0.40hsize
}%



begin{document}
SetMyText{%
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua.

Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
deserunt mollit anim id est laborum.%
}%
%% ----------------
OutputMyText%
end{document}


enter image description here






share|improve this answer





















  • 1





    I didn't even need egreg's hat.

    – David Carlisle
    Dec 12 '18 at 9:10











  • What kind of sorcery is this? You can specify the parhsape after the paragraph (ie, after the #1 in SetMyText)? However, this won't work as per second point in the Notes. I need the content of the last paragraph to be passed to ProcessLastPara{} as a parameter so that I can determine the correct parshape to apply.

    – Peter Grill
    Dec 12 '18 at 17:58













  • @PeterGrill I saw that note but decided just to answer the question as asked, as I wanted to demonstrate this (which uses a few orders of magnitude fewer macro expansions than egreg's:-) (you could of course add a noindent to the code in your question and egreg's answer to get the full length top row.

    – David Carlisle
    Dec 12 '18 at 18:45








  • 1





    @DavidCarlisle Very nice and concise answer, but I'm really confused by putting the LastParShape after #1. I wish you would have time to explain more about it.

    – javadr
    Dec 12 '18 at 19:12






  • 2





    @javadr paragraph settings, whether parshape or centering etc use the settings in force at the end of the paragraph, which is why you often see on this site warnings that {centering hello} does not center as the settings are discarded but {centering hellopar} does center, as does {noindent hellocenteringpar} setting the parshape is the same, it sets the linebreaking but is not consulted until tex starts linebreaking which is at the end of the paragraph.

    – David Carlisle
    Dec 12 '18 at 19:44



















3














It's quite easy with expl3: collect the text, split it at par, then detach the last paragraph and typeset it separately.



documentclass{article}
usepackage[paperwidth=15cm]{geometry}
usepackage{xparse}

ExplSyntaxOn
NewDocumentCommand{SetMyText}{s+m}
{
IfBooleanTF{#1}
{
seq_set_split:NnV l_peter_mytext_seq { par } #2
}
{
seq_set_split:Nnn l_peter_mytext_seq { par } { #2 }
}
}
cs_generate_variant:Nn seq_set_split:Nnn { NnV }
seq_new:N l_peter_mytext_seq
tl_new:N l_peter_mytext_tl

NewDocumentCommand{OutputMyText}{}
{
seq_pop_right:NN l_peter_mytext_seq l_peter_mytext_tl
seq_use:Nn l_peter_mytext_seq { par } par
LastParShape l_peter_mytext_tl
}
ExplSyntaxOff

newcommand*{LastParShape}{%
parshape 5
0.10hsize 0.80hsize
0.15hsize 0.70hsize
0.20hsize 0.60hsize
0.25hsize 0.50hsize
0.30hsize 0.40hsize
}

begin{document}

SetMyText{
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua.

Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
deserunt mollit anim id est laborum.
}

OutputMyText

end{document}


enter image description here






share|improve this answer























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    2 Answers
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    2 Answers
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    documentclass{article}

    usepackage[paperwidth=15cm]{geometry}

    makeatletter
    newcommand{@MyText}{}
    newcommand{SetMyText}[1]{def@MyText{#1LastParShapepar}}%
    newcommand*{OutputMyText}{@MyText}%
    makeatother

    newcommand*{LastParShape}{%
    parshape 5
    dimexpr0.10hsize-parindentrelax dimexpr0.80hsize+parindentrelax
    0.15hsize 0.70hsize
    0.20hsize 0.60hsize
    0.25hsize 0.50hsize
    0.30hsize 0.40hsize
    }%



    begin{document}
    SetMyText{%
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
    incididunt ut labore et dolore magna aliqua.

    Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
    aliquip ex ea commodo consequat.

    Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
    eu fugiat nulla pariatur.
    Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
    deserunt mollit anim id est laborum.%
    }%
    %% ----------------
    OutputMyText%
    end{document}


    enter image description here






    share|improve this answer





















    • 1





      I didn't even need egreg's hat.

      – David Carlisle
      Dec 12 '18 at 9:10











    • What kind of sorcery is this? You can specify the parhsape after the paragraph (ie, after the #1 in SetMyText)? However, this won't work as per second point in the Notes. I need the content of the last paragraph to be passed to ProcessLastPara{} as a parameter so that I can determine the correct parshape to apply.

      – Peter Grill
      Dec 12 '18 at 17:58













    • @PeterGrill I saw that note but decided just to answer the question as asked, as I wanted to demonstrate this (which uses a few orders of magnitude fewer macro expansions than egreg's:-) (you could of course add a noindent to the code in your question and egreg's answer to get the full length top row.

      – David Carlisle
      Dec 12 '18 at 18:45








    • 1





      @DavidCarlisle Very nice and concise answer, but I'm really confused by putting the LastParShape after #1. I wish you would have time to explain more about it.

      – javadr
      Dec 12 '18 at 19:12






    • 2





      @javadr paragraph settings, whether parshape or centering etc use the settings in force at the end of the paragraph, which is why you often see on this site warnings that {centering hello} does not center as the settings are discarded but {centering hellopar} does center, as does {noindent hellocenteringpar} setting the parshape is the same, it sets the linebreaking but is not consulted until tex starts linebreaking which is at the end of the paragraph.

      – David Carlisle
      Dec 12 '18 at 19:44
















    5














    documentclass{article}

    usepackage[paperwidth=15cm]{geometry}

    makeatletter
    newcommand{@MyText}{}
    newcommand{SetMyText}[1]{def@MyText{#1LastParShapepar}}%
    newcommand*{OutputMyText}{@MyText}%
    makeatother

    newcommand*{LastParShape}{%
    parshape 5
    dimexpr0.10hsize-parindentrelax dimexpr0.80hsize+parindentrelax
    0.15hsize 0.70hsize
    0.20hsize 0.60hsize
    0.25hsize 0.50hsize
    0.30hsize 0.40hsize
    }%



    begin{document}
    SetMyText{%
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
    incididunt ut labore et dolore magna aliqua.

    Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
    aliquip ex ea commodo consequat.

    Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
    eu fugiat nulla pariatur.
    Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
    deserunt mollit anim id est laborum.%
    }%
    %% ----------------
    OutputMyText%
    end{document}


    enter image description here






    share|improve this answer





















    • 1





      I didn't even need egreg's hat.

      – David Carlisle
      Dec 12 '18 at 9:10











    • What kind of sorcery is this? You can specify the parhsape after the paragraph (ie, after the #1 in SetMyText)? However, this won't work as per second point in the Notes. I need the content of the last paragraph to be passed to ProcessLastPara{} as a parameter so that I can determine the correct parshape to apply.

      – Peter Grill
      Dec 12 '18 at 17:58













    • @PeterGrill I saw that note but decided just to answer the question as asked, as I wanted to demonstrate this (which uses a few orders of magnitude fewer macro expansions than egreg's:-) (you could of course add a noindent to the code in your question and egreg's answer to get the full length top row.

      – David Carlisle
      Dec 12 '18 at 18:45








    • 1





      @DavidCarlisle Very nice and concise answer, but I'm really confused by putting the LastParShape after #1. I wish you would have time to explain more about it.

      – javadr
      Dec 12 '18 at 19:12






    • 2





      @javadr paragraph settings, whether parshape or centering etc use the settings in force at the end of the paragraph, which is why you often see on this site warnings that {centering hello} does not center as the settings are discarded but {centering hellopar} does center, as does {noindent hellocenteringpar} setting the parshape is the same, it sets the linebreaking but is not consulted until tex starts linebreaking which is at the end of the paragraph.

      – David Carlisle
      Dec 12 '18 at 19:44














    5












    5








    5







    documentclass{article}

    usepackage[paperwidth=15cm]{geometry}

    makeatletter
    newcommand{@MyText}{}
    newcommand{SetMyText}[1]{def@MyText{#1LastParShapepar}}%
    newcommand*{OutputMyText}{@MyText}%
    makeatother

    newcommand*{LastParShape}{%
    parshape 5
    dimexpr0.10hsize-parindentrelax dimexpr0.80hsize+parindentrelax
    0.15hsize 0.70hsize
    0.20hsize 0.60hsize
    0.25hsize 0.50hsize
    0.30hsize 0.40hsize
    }%



    begin{document}
    SetMyText{%
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
    incididunt ut labore et dolore magna aliqua.

    Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
    aliquip ex ea commodo consequat.

    Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
    eu fugiat nulla pariatur.
    Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
    deserunt mollit anim id est laborum.%
    }%
    %% ----------------
    OutputMyText%
    end{document}


    enter image description here






    share|improve this answer















    documentclass{article}

    usepackage[paperwidth=15cm]{geometry}

    makeatletter
    newcommand{@MyText}{}
    newcommand{SetMyText}[1]{def@MyText{#1LastParShapepar}}%
    newcommand*{OutputMyText}{@MyText}%
    makeatother

    newcommand*{LastParShape}{%
    parshape 5
    dimexpr0.10hsize-parindentrelax dimexpr0.80hsize+parindentrelax
    0.15hsize 0.70hsize
    0.20hsize 0.60hsize
    0.25hsize 0.50hsize
    0.30hsize 0.40hsize
    }%



    begin{document}
    SetMyText{%
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
    incididunt ut labore et dolore magna aliqua.

    Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
    aliquip ex ea commodo consequat.

    Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
    eu fugiat nulla pariatur.
    Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
    deserunt mollit anim id est laborum.%
    }%
    %% ----------------
    OutputMyText%
    end{document}


    enter image description here







    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited Dec 12 '18 at 18:49

























    answered Dec 12 '18 at 9:10









    David CarlisleDavid Carlisle

    490k4111321881




    490k4111321881








    • 1





      I didn't even need egreg's hat.

      – David Carlisle
      Dec 12 '18 at 9:10











    • What kind of sorcery is this? You can specify the parhsape after the paragraph (ie, after the #1 in SetMyText)? However, this won't work as per second point in the Notes. I need the content of the last paragraph to be passed to ProcessLastPara{} as a parameter so that I can determine the correct parshape to apply.

      – Peter Grill
      Dec 12 '18 at 17:58













    • @PeterGrill I saw that note but decided just to answer the question as asked, as I wanted to demonstrate this (which uses a few orders of magnitude fewer macro expansions than egreg's:-) (you could of course add a noindent to the code in your question and egreg's answer to get the full length top row.

      – David Carlisle
      Dec 12 '18 at 18:45








    • 1





      @DavidCarlisle Very nice and concise answer, but I'm really confused by putting the LastParShape after #1. I wish you would have time to explain more about it.

      – javadr
      Dec 12 '18 at 19:12






    • 2





      @javadr paragraph settings, whether parshape or centering etc use the settings in force at the end of the paragraph, which is why you often see on this site warnings that {centering hello} does not center as the settings are discarded but {centering hellopar} does center, as does {noindent hellocenteringpar} setting the parshape is the same, it sets the linebreaking but is not consulted until tex starts linebreaking which is at the end of the paragraph.

      – David Carlisle
      Dec 12 '18 at 19:44














    • 1





      I didn't even need egreg's hat.

      – David Carlisle
      Dec 12 '18 at 9:10











    • What kind of sorcery is this? You can specify the parhsape after the paragraph (ie, after the #1 in SetMyText)? However, this won't work as per second point in the Notes. I need the content of the last paragraph to be passed to ProcessLastPara{} as a parameter so that I can determine the correct parshape to apply.

      – Peter Grill
      Dec 12 '18 at 17:58













    • @PeterGrill I saw that note but decided just to answer the question as asked, as I wanted to demonstrate this (which uses a few orders of magnitude fewer macro expansions than egreg's:-) (you could of course add a noindent to the code in your question and egreg's answer to get the full length top row.

      – David Carlisle
      Dec 12 '18 at 18:45








    • 1





      @DavidCarlisle Very nice and concise answer, but I'm really confused by putting the LastParShape after #1. I wish you would have time to explain more about it.

      – javadr
      Dec 12 '18 at 19:12






    • 2





      @javadr paragraph settings, whether parshape or centering etc use the settings in force at the end of the paragraph, which is why you often see on this site warnings that {centering hello} does not center as the settings are discarded but {centering hellopar} does center, as does {noindent hellocenteringpar} setting the parshape is the same, it sets the linebreaking but is not consulted until tex starts linebreaking which is at the end of the paragraph.

      – David Carlisle
      Dec 12 '18 at 19:44








    1




    1





    I didn't even need egreg's hat.

    – David Carlisle
    Dec 12 '18 at 9:10





    I didn't even need egreg's hat.

    – David Carlisle
    Dec 12 '18 at 9:10













    What kind of sorcery is this? You can specify the parhsape after the paragraph (ie, after the #1 in SetMyText)? However, this won't work as per second point in the Notes. I need the content of the last paragraph to be passed to ProcessLastPara{} as a parameter so that I can determine the correct parshape to apply.

    – Peter Grill
    Dec 12 '18 at 17:58







    What kind of sorcery is this? You can specify the parhsape after the paragraph (ie, after the #1 in SetMyText)? However, this won't work as per second point in the Notes. I need the content of the last paragraph to be passed to ProcessLastPara{} as a parameter so that I can determine the correct parshape to apply.

    – Peter Grill
    Dec 12 '18 at 17:58















    @PeterGrill I saw that note but decided just to answer the question as asked, as I wanted to demonstrate this (which uses a few orders of magnitude fewer macro expansions than egreg's:-) (you could of course add a noindent to the code in your question and egreg's answer to get the full length top row.

    – David Carlisle
    Dec 12 '18 at 18:45







    @PeterGrill I saw that note but decided just to answer the question as asked, as I wanted to demonstrate this (which uses a few orders of magnitude fewer macro expansions than egreg's:-) (you could of course add a noindent to the code in your question and egreg's answer to get the full length top row.

    – David Carlisle
    Dec 12 '18 at 18:45






    1




    1





    @DavidCarlisle Very nice and concise answer, but I'm really confused by putting the LastParShape after #1. I wish you would have time to explain more about it.

    – javadr
    Dec 12 '18 at 19:12





    @DavidCarlisle Very nice and concise answer, but I'm really confused by putting the LastParShape after #1. I wish you would have time to explain more about it.

    – javadr
    Dec 12 '18 at 19:12




    2




    2





    @javadr paragraph settings, whether parshape or centering etc use the settings in force at the end of the paragraph, which is why you often see on this site warnings that {centering hello} does not center as the settings are discarded but {centering hellopar} does center, as does {noindent hellocenteringpar} setting the parshape is the same, it sets the linebreaking but is not consulted until tex starts linebreaking which is at the end of the paragraph.

    – David Carlisle
    Dec 12 '18 at 19:44





    @javadr paragraph settings, whether parshape or centering etc use the settings in force at the end of the paragraph, which is why you often see on this site warnings that {centering hello} does not center as the settings are discarded but {centering hellopar} does center, as does {noindent hellocenteringpar} setting the parshape is the same, it sets the linebreaking but is not consulted until tex starts linebreaking which is at the end of the paragraph.

    – David Carlisle
    Dec 12 '18 at 19:44











    3














    It's quite easy with expl3: collect the text, split it at par, then detach the last paragraph and typeset it separately.



    documentclass{article}
    usepackage[paperwidth=15cm]{geometry}
    usepackage{xparse}

    ExplSyntaxOn
    NewDocumentCommand{SetMyText}{s+m}
    {
    IfBooleanTF{#1}
    {
    seq_set_split:NnV l_peter_mytext_seq { par } #2
    }
    {
    seq_set_split:Nnn l_peter_mytext_seq { par } { #2 }
    }
    }
    cs_generate_variant:Nn seq_set_split:Nnn { NnV }
    seq_new:N l_peter_mytext_seq
    tl_new:N l_peter_mytext_tl

    NewDocumentCommand{OutputMyText}{}
    {
    seq_pop_right:NN l_peter_mytext_seq l_peter_mytext_tl
    seq_use:Nn l_peter_mytext_seq { par } par
    LastParShape l_peter_mytext_tl
    }
    ExplSyntaxOff

    newcommand*{LastParShape}{%
    parshape 5
    0.10hsize 0.80hsize
    0.15hsize 0.70hsize
    0.20hsize 0.60hsize
    0.25hsize 0.50hsize
    0.30hsize 0.40hsize
    }

    begin{document}

    SetMyText{
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
    incididunt ut labore et dolore magna aliqua.

    Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
    aliquip ex ea commodo consequat.

    Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
    eu fugiat nulla pariatur.
    Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
    deserunt mollit anim id est laborum.
    }

    OutputMyText

    end{document}


    enter image description here






    share|improve this answer




























      3














      It's quite easy with expl3: collect the text, split it at par, then detach the last paragraph and typeset it separately.



      documentclass{article}
      usepackage[paperwidth=15cm]{geometry}
      usepackage{xparse}

      ExplSyntaxOn
      NewDocumentCommand{SetMyText}{s+m}
      {
      IfBooleanTF{#1}
      {
      seq_set_split:NnV l_peter_mytext_seq { par } #2
      }
      {
      seq_set_split:Nnn l_peter_mytext_seq { par } { #2 }
      }
      }
      cs_generate_variant:Nn seq_set_split:Nnn { NnV }
      seq_new:N l_peter_mytext_seq
      tl_new:N l_peter_mytext_tl

      NewDocumentCommand{OutputMyText}{}
      {
      seq_pop_right:NN l_peter_mytext_seq l_peter_mytext_tl
      seq_use:Nn l_peter_mytext_seq { par } par
      LastParShape l_peter_mytext_tl
      }
      ExplSyntaxOff

      newcommand*{LastParShape}{%
      parshape 5
      0.10hsize 0.80hsize
      0.15hsize 0.70hsize
      0.20hsize 0.60hsize
      0.25hsize 0.50hsize
      0.30hsize 0.40hsize
      }

      begin{document}

      SetMyText{
      Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
      incididunt ut labore et dolore magna aliqua.

      Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
      aliquip ex ea commodo consequat.

      Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
      eu fugiat nulla pariatur.
      Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
      deserunt mollit anim id est laborum.
      }

      OutputMyText

      end{document}


      enter image description here






      share|improve this answer


























        3












        3








        3







        It's quite easy with expl3: collect the text, split it at par, then detach the last paragraph and typeset it separately.



        documentclass{article}
        usepackage[paperwidth=15cm]{geometry}
        usepackage{xparse}

        ExplSyntaxOn
        NewDocumentCommand{SetMyText}{s+m}
        {
        IfBooleanTF{#1}
        {
        seq_set_split:NnV l_peter_mytext_seq { par } #2
        }
        {
        seq_set_split:Nnn l_peter_mytext_seq { par } { #2 }
        }
        }
        cs_generate_variant:Nn seq_set_split:Nnn { NnV }
        seq_new:N l_peter_mytext_seq
        tl_new:N l_peter_mytext_tl

        NewDocumentCommand{OutputMyText}{}
        {
        seq_pop_right:NN l_peter_mytext_seq l_peter_mytext_tl
        seq_use:Nn l_peter_mytext_seq { par } par
        LastParShape l_peter_mytext_tl
        }
        ExplSyntaxOff

        newcommand*{LastParShape}{%
        parshape 5
        0.10hsize 0.80hsize
        0.15hsize 0.70hsize
        0.20hsize 0.60hsize
        0.25hsize 0.50hsize
        0.30hsize 0.40hsize
        }

        begin{document}

        SetMyText{
        Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
        incididunt ut labore et dolore magna aliqua.

        Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
        aliquip ex ea commodo consequat.

        Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
        eu fugiat nulla pariatur.
        Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
        deserunt mollit anim id est laborum.
        }

        OutputMyText

        end{document}


        enter image description here






        share|improve this answer













        It's quite easy with expl3: collect the text, split it at par, then detach the last paragraph and typeset it separately.



        documentclass{article}
        usepackage[paperwidth=15cm]{geometry}
        usepackage{xparse}

        ExplSyntaxOn
        NewDocumentCommand{SetMyText}{s+m}
        {
        IfBooleanTF{#1}
        {
        seq_set_split:NnV l_peter_mytext_seq { par } #2
        }
        {
        seq_set_split:Nnn l_peter_mytext_seq { par } { #2 }
        }
        }
        cs_generate_variant:Nn seq_set_split:Nnn { NnV }
        seq_new:N l_peter_mytext_seq
        tl_new:N l_peter_mytext_tl

        NewDocumentCommand{OutputMyText}{}
        {
        seq_pop_right:NN l_peter_mytext_seq l_peter_mytext_tl
        seq_use:Nn l_peter_mytext_seq { par } par
        LastParShape l_peter_mytext_tl
        }
        ExplSyntaxOff

        newcommand*{LastParShape}{%
        parshape 5
        0.10hsize 0.80hsize
        0.15hsize 0.70hsize
        0.20hsize 0.60hsize
        0.25hsize 0.50hsize
        0.30hsize 0.40hsize
        }

        begin{document}

        SetMyText{
        Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
        incididunt ut labore et dolore magna aliqua.

        Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
        aliquip ex ea commodo consequat.

        Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore
        eu fugiat nulla pariatur.
        Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
        deserunt mollit anim id est laborum.
        }

        OutputMyText

        end{document}


        enter image description here







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Dec 12 '18 at 8:49









        egregegreg

        719k8719053205




        719k8719053205






























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