Problem controlling page numbers in bookparts

[Vincent Gay]

    Hello,
    
    I'm a french Lilypond user and I use to discuss on the LilyPond
    French-speaking list.
    
    I recently found a post of Thomas Morley about page numbering within
    a \bookpart (this
      page). It is very useful for me, is there a more recent
    version?
    
    Here are a few things I'm having trouble with :
    
    1- the example in the post compiles perfectly, mine (first example
    below) ends with this error.

FORMAT: error with call: (format #f "~(~@r<===~)" ===>0 )

only positive integers can be romanized

<unnamed port>: In procedure scm-error in _expression_ (scm-error (quote misc-error) #f ...):

<unnamed port>: error in format

    I don't understand where the difference is. 
    
    2- If I compile two books in the same document and
    print-first-page-number has the value ##f the second page of the
    second book is numbered with the value 0. If print-first-page-number
    has the value ##t the result is correct. See the second example
    below.
    
    3- Even with print-first-page-number = ##f the first pages of the
    \bookparts (starting from the second one) are printed. Is there a
    way to hide them?
    
    Many thanks in advance. 
    
    
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    
    First example :
    \version "2.22.1"
      \include "BookPartPagesNumber.ly"
      musique = \relative c'' { \repeat unfold 2 { d1 \pageBreak } }
      
      \book {
        \bookpart {
          \paper {
            oddHeaderMarkup = \oddMarkup #'roman-lower
            evenHeaderMarkup = \evenMarkup #'roman-lower
          }
          \score {
            \musique
          }
        }
        \bookpart {
          \paper {
            oddHeaderMarkup = \oddMarkup #'arabic
            evenHeaderMarkup = \evenMarkup #'arabic
          }
          \score {
            \musique
          }
        }
      }
    
    
    Second example :
    \version "2.22.1"
      \include "BookPartPagesNumber.ly"
      musique = \relative c'' { \repeat unfold 2 { d1 \pageBreak } }
      
      \paper {
        print-first-page-number = ##f
      }
      
      \book {
        \bookpart {
          \paper {
            oddHeaderMarkup = \oddMarkup #'arabic
            evenHeaderMarkup = \evenMarkup #'arabic
          }
          \score {
            \musique
          }
        }
        \bookpart {
          \paper {
            oddHeaderMarkup = \oddMarkup #'arabic
            evenHeaderMarkup = \evenMarkup #'arabic
          }
          \score {
            \musique
          }
        }
      }
      
      \book {
        \bookpart {
          \paper {
            oddHeaderMarkup = \oddMarkup #'arabic
            evenHeaderMarkup = \evenMarkup #'arabic
          }
          \score {
            \musique
          }
        }
        \bookpart {
          \paper {
            oddHeaderMarkup = \oddMarkup #'arabic
            evenHeaderMarkup = \evenMarkup #'arabic
          }
          \score {
            \musique
          }
        }
      }
-- 
Vincent Gay
Envoyé depuis mon saxo-phone :)
https://myrealbook.vintherine.org/ - http://photos.vintherine.org/

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