Cfrgtkky

I am trying to adapt this advance date method for a 3-day syllabus without success.

The goal is to create a M-W-F class schedule. The method in the link above is for a two-day schedule. It takes the three-letter day of the week for the current date ("Mon", "Tue", etc.) and compares it to the width of a box containing the startdate (e.g. "Mon"). If the widths are equal, it advances two and the prints the date two days ahead. Otherwise, it it advances five days. By contrast, I need to advance the date two days if the current date is "Mon", two days if the current date is "Wed", and three days otherwise.

Assuming classes start on a Monday, the two-day method saves "Mon" in a box for the boolean comparison used to advance dates. So I created a second box for "Wed"

newsavebox{MONDAY}savebox{MONDAY}{Mon}% Mon

newsavebox{WEDNESDAY}savebox{WEDNESDAY}{Wed}% WED

and then added another condition in the "if" statement:

newcommand{class}[1]{%

  cleardate{mydate}% Clear date

  newdate{mydate}{theday}{themonth}{theyear}% Store date

  section*{displaydate{mydate} quad #1}% Set heading

  setbox1=hbox{shortdayofweekname{getdateday{mydate}}{getdatemonth{mydate}}{getdateyear{mydate}}}%

  ifdimwd1=wdMONDAY

    AdvanceDate[2]

  else

  ifdimwd1=wdWEDNESDAY

    AdvanceDate[2]

  else

    AdvanceDate[3]

  fi%

}

but this does not work. Any tips?

Full MWE:

documentclass{article}

usepackage[ddmmyyyy]{datetime}% http://ctan.org/pkg/datetime

usepackage{advdate}% http://ctan.org/pkg/advdate



newdateformat{syldate}{THEMONTH/THEDAY/THEYEAR}%(shortdayofweekname%{THEDAY}{THEMONTH}{THEYEAR})}



newsavebox{MONDAY}savebox{MONDAY}{Mon}% Mon

newsavebox{WEDNESDAY}savebox{WEDNESDAY}{Wed}% WED



makeatletter

newcommand{cleardate}[1]{%

  expandafterletcsname date@#1@dendcsnamerelax% Clear day

  expandafterletcsname date@#1@mendcsnamerelax% Clear month

  expandafterletcsname date@#1@yendcsnamerelax% Clear year

}

makeatother



newcommand{class}[1]{%

  cleardate{mydate}% Clear date

  newdate{mydate}{theday}{themonth}{theyear}% Store date

  section*{displaydate{mydate} quad #1}% Set heading

  setbox1=hbox{shortdayofweekname{getdateday{mydate}}{getdatemonth{mydate}}{getdateyear{mydate}}}%

  ifdimwd1=wdMONDAY

    AdvanceDate[2]

  else

  ifdimwd1=wdWEDNESDAY

    AdvanceDate[2]

  else

    AdvanceDate[3]

  fi%

}



SetDate[14/01/2019]





begin{document}



class{First class}

class{Second class}

class{Third class}





class{Fourth class}

class{Fifth class}

class{Sixth class}

class{Seventh class}



end{document}

Your code works without problem once you close the outer conditional with a fi:

documentclass{article}



usepackage[ddmmyyyy]{datetime}% http://ctan.org/pkg/datetime

usepackage{advdate}% http://ctan.org/pkg/advdate



newdateformat{syldate}{THEMONTH/THEDAY/THEYEAR}



newsavebox{MONDAY}savebox{MONDAY}{Mon}% Monday

newsavebox{WEDNESDAY}savebox{WEDNESDAY}{Wed}% Wednesday



makeatletter

newcommand{cleardate}[1]{%

  expandafterletcsname date@#1@dendcsnamerelax% Clear day

  expandafterletcsname date@#1@mendcsnamerelax% Clear month

  expandafterletcsname date@#1@yendcsnamerelax% Clear year

}

makeatother



newcommand{class}[1]{%

  cleardate{mydate}% Clear date

  newdate{mydate}{theday}{themonth}{theyear}% Store date

  section*{displaydate{mydate} quad #1}% Set heading

  setbox1=hbox{shortdayofweekname{getdateday{mydate}}{getdatemonth{mydate}}{getdateyear{mydate}}}%

  ifdimwd1=wdMONDAY

    AdvanceDate[2]

  else

    ifdimwd1=wdWEDNESDAY

      AdvanceDate[2]

    else

      AdvanceDate[3]

    fi

  fi

}



SetDate[14/01/2019]



begin{document}



class{First class}

class{Second class}

class{Third class}



class{Fourth class}

class{Fifth class}

class{Sixth class}

class{Seventh class}



end{document}

Additionally, consider migrating to datetime2 since datetime is considered obsolete.