\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