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Diffstat (limited to 'Master/texmf-dist/tex/latex/leadsheets/leadsheets.library.chords.code.tex')
-rw-r--r-- | Master/texmf-dist/tex/latex/leadsheets/leadsheets.library.chords.code.tex | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/latex/leadsheets/leadsheets.library.chords.code.tex b/Master/texmf-dist/tex/latex/leadsheets/leadsheets.library.chords.code.tex new file mode 100644 index 00000000000..0dce4372717 --- /dev/null +++ b/Master/texmf-dist/tex/latex/leadsheets/leadsheets.library.chords.code.tex @@ -0,0 +1,189 @@ +\LeadsheetsExplLibrary{chords}{2014/08/10 printing chords} + +\msg_new:nnn {leadsheets} {no-chords} + { No~ more~ chords~ left~ for~ verse~ type~ `#1'~ \msg_line_context: } + +\tl_new:N \l__leadsheets_current_chord_tl +\tl_new:N \l__leadsheets_chord_stack_alignment_tl +\tl_set:Nn \l__leadsheets_chord_stack_alignment_tl {c} + +\bool_new:N \l__leadsheets_smash_chords_bool +\bool_new:N \g__leadsheets_smash_next_chord_bool +\bool_new:N \l__leadsheets_chord_gobble_after_bool +\bool_new:N \l__leadsheets_record_chords_bool +\bool_new:N \l__leadsheets_chord_print_bool +\bool_set_true:N \l__leadsheets_chord_print_bool + +\prop_new:N \g__leadsheets_chords_sequences_prop + +\seq_new:N \l__leadsheets_chords_sequences_seq + +\dim_new:N \l__leadsheets_empty_chord_dim +\dim_set:Nn \l__leadsheets_empty_chord_dim {1em} + +\cs_new:Npn \leadsheets_chord_print:n #1 {#1} +\cs_generate_variant:Nn \leadsheets_chord_print:n {V} + +\cs_new_protected:Npn \leadsheets_chord:nnn #1#2#3 + { + \leadsheets_if_record_chords:T + { \seq_put_right:Nn \l__leadsheets_chords_sequences_seq { {#3} } } + \leadsheets_set_chord:nnn + {#1} + {#2} + { \leadsheets_chord_write:n {#3} } + } + +\cs_new_protected:Npn \leadsheets_set_chord:nnn #1#2#3 + { + \bool_if:NTF #1 + { \bool_set_true:N \l__leadsheets_chord_gobble_after_bool } + { \bool_set_false:N \l__leadsheets_chord_gobble_after_bool } + \bool_if:NT #2 + { \bool_set_true:N \g__leadsheets_smash_next_chord_bool } + \__leadsheets_set_chord:nwn {#3} + } + +\cs_new_protected:Npn \__leadsheets_set_chord:nwn #1#2~#3 + { + \leadsheets_place_above:Vnn + \l__leadsheets_chord_stack_alignment_tl + {#1} + { + \tl_if_blank:nTF {#2} + {\skip_horizontal:N \l__leadsheets_empty_chord_dim} + {#2} + } + \tl_if_blank:nF {#3} + { \bool_if:NF \l__leadsheets_chord_gobble_after_bool {\c_space_tl} } + #3 + } + +\cs_new_protected:Npn \leadsheets_chord_write:n #1 + { +% \bool_if:NT \l__leadsheets_chord_print_bool +% { + \tl_set:Nn \l__leadsheets_current_chord_tl {#1} + \bool_if:nT + { + \leadsheets_if_property_p:Vn \l_leadsheets_current_song_id_tl {key} + && + ( \l__leadsheets_transpose_bool || \l__leadsheets_transpose_capo_bool ) + } + { + \leadsheets_transpose:xVN + { \leadsheets_get_property:Vn \l_leadsheets_current_song_id_tl {key} } + \l__leadsheets_transpose_steps_int + \l__leadsheets_current_chord_tl + } + \bool_if:nTF + { + ! \leadsheets_if_property_p:Vn \l_leadsheets_current_song_id_tl {key} + && + ( \l__leadsheets_transpose_bool || \l__leadsheets_transpose_capo_bool ) + } + { + \msg_warning:nnV {leadsheets} + {transpose-key} + \l_leadsheets_current_song_id_tl + } + \leadsheets_chord_print:V \l__leadsheets_current_chord_tl +% } + } +\cs_generate_variant:Nn \leadsheets_chord_write:n { V } + +\cs_new_protected:Npn \leadsheets_place_above:nnn #1#2#3 + { + \bool_if:NTF \l__leadsheets_chord_print_bool + { + \group_begin: + \leadsheets_ignore_lines: + \bool_if:NT \g__leadsheets_smash_next_chord_bool + { + \bool_set_true:N \l__leadsheets_smash_chords_bool + \bool_gset_false:N \g__leadsheets_smash_next_chord_bool + } + \linespread{1} \selectfont + \begin{tabular} [b] {@{}#1@{}} + \bool_if:NTF \l__leadsheets_smash_chords_bool + {\makebox[0pt][c]{#2}} + {#2} \\ + #3 + \end{tabular} + \group_end: + } + {#3} + } +\cs_generate_variant:Nn \leadsheets_place_above:nnn { V } + +\keys_define:nn {leadsheets} + { + smash-chords .bool_set:N = \l__leadsheets_smash_chords_bool , + smash-next-chord .bool_set:N = \g__leadsheets_smash_next_chord_bool , + empty-chord-dim .dim_set:N = \l__leadsheets_empty_chord_dim , + remember-chords .bool_set:N = \l__leadsheets_record_chords_bool , + align-chords .tl_set:N = \l__leadsheets_chord_stack_alignment_tl , + chord-cs .code:n = + \cs_set_protected:Npn \leadsheets_chord_print:n {#1} , + chord-cs .initial:n = \chordname , + print-chords .bool_set:N = \l__leadsheets_chord_print_bool + } + +\NewDocumentCommand \chord {st-m} { \leadsheets_chord:nnn {#1} {#2} {#3} } + +\NewDocumentCommand \writechord {m} + { \leadsheets_chord_write:n {#1} } + +% -------------------------------------------------------------------------- +% record changes for a verse and automatically print them in the next: +\prg_new_conditional:Npnn \leadsheets_if_record_chords: {T,F,TF} + { + \bool_if:nTF + { + \l__leadsheets_record_chords_bool && + ! \prop_if_in_p:NV + \g__leadsheets_chords_sequences_prop + \l_leadsheets_verse_type_tl && + !\l__leadsheets_measuring_bool + } + { \prg_return_true: } + { \prg_return_false: } + } + +\prg_new_conditional:Npnn \leadsheets_if_recall_chords: {T,F,TF} + { + \bool_if:nTF + { + \l__leadsheets_record_chords_bool && + \prop_if_in_p:NV + \g__leadsheets_chords_sequences_prop + \l_leadsheets_verse_type_tl + && + !\l__leadsheets_measuring_bool + } + { \prg_return_true: } + { \prg_return_false: } + } + +\cs_new:Npn \leadsheets_remember_or_recall_chords:w + { + \leadsheets_if_recall_chords:TF + { \__leadsheets_recall_chord:w } + { \chord } + } + +\cs_new_protected:Npn \leadsheets_recall_chord:nn #1#2 + { + \seq_pop_left:NNF \l__leadsheets_chords_sequences_seq + \l__leadsheets_tmpa_tl + { \msg_error:nnV {leadsheets} {no-chords} \l_leadsheets_verse_type_tl } + \leadsheets_set_chord:nnn + {#1} + {#2} + { \leadsheets_chord_write:V \l__leadsheets_tmpa_tl } + } + +\NewDocumentCommand \__leadsheets_recall_chord:w {st-} + { \leadsheets_recall_chord:nn {#1} {#2} } + +\endinput |