Oliverpool
10 years ago
3 changed files with 6805 additions and 0 deletions
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/* |
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Parse Latex song into chordpro |
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*/ |
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{ |
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function megajoin(array){ |
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for(x in array) { |
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if(array[x] instanceof Array) { |
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array[x] = array[x].join(""); |
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} |
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} |
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return array.join(""); |
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} |
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function property(name, value){ |
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if(value instanceof Array) { |
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value = value.join(""); |
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} |
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return "{" + name +": " + value + "}"; |
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} |
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function tab_property(name, base, frets, special, ukulele){ |
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var content = ""; |
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content += name.replace("/b/g", "&"); |
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if(base > 0){ |
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content += " base-fret "; |
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content += base; |
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} |
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content += " frets "; |
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content += frets.join("").toUpperCase(); |
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if(special){ |
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content += " special"; |
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} |
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var define = "define"; |
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if(ukulele){ |
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define += "_ukulele"; |
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} |
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return property(define, content); |
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} |
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function blockify(name, content, newline){ |
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var start = "{start_of_"+name+"}"; |
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var end = "{end_of_"+name+"}"; |
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if(newline){ |
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start += "\r\n"; |
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end += "\r\n"; |
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} |
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return start + content + end; |
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} |
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function blockify_param(name, param, content, newline){ |
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if(param instanceof Array) { |
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param = param.join(""); |
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} |
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var start = "{start_of_"+name + ": "+param+"}"; |
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var end = "{end_of_"+name+"}"; |
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if(newline){ |
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start += "\r\n"; |
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end += "\r\n"; |
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} |
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return start + content + end; |
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} |
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function chordname_split(chordname){ |
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return chordname.split(" - ").join(" ").split(" ").join("][").replace("/b/g", "&"); |
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} |
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} |
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start |
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= content:(language? newlines_merge columnsetting? newlines_merge song) {return content.join(""); } |
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// Basic characters |
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digits |
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= digits:[0-9]+ {return digits.join("")} |
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ndigits |
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= digits |
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/ "-" digits |
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digit |
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= digit:[0-9] |
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alpha |
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= chars:[a-zA-Z]+ {return chars.join("")} |
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slug |
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= chars:[a-zA-Z0-9-_]+ {return chars.join("")} |
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url |
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= chars:[a-zA-Z0-9-_$.+!*'(),/:]+ {return chars.join("")} |
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// Text patterns |
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inline_text |
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= content:inline_text_elt+ {return content.join("")} |
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inline_text_elt |
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= safe_text |
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/ inline_command |
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/ empty_command |
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/ ignored_command |
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/ equation |
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safe_text |
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= content:nonlatex_char+ {return content.join("")} |
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nonlatex_char |
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= [^\\\n\r{}$%\[\]] |
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inline_command |
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= "\\dots {" content:inline_text "}" {return "..." + content} |
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/ "\\shrp{" content:inline_text "}" {return "#" + content} |
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empty_command |
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= "\\" content:empty_command_name " "? "{}" {return content} |
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/ "\\" content:empty_command_name {return content} |
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/ "{\\" content:empty_command_name "}" {return content} |
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empty_command_name |
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= "oe" { return "œ"} |
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/ "ier" |
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/ "ieme" |
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/ "dots" { return "..."} |
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/ "ldots" { return "..."} |
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/ "og" { return "``"} // guillemets |
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/ "fg" { return "''"} // guillemets |
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/ "flt" { return "&"} |
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/ "shrp" { return "#"} |
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/ "&" |
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/ "_" |
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/ "%" |
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/ "#" |
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/ "," |
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/ "'" |
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/ " " |
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/ removed_command_name { return ""} |
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removed_command_name |
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= "{" |
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/ "}" |
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/ "newline" |
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/ "MultiwordChords" |
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/ "Adlib" |
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ignored_command |
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= "\\" ignored_command_name "{" content:inline_text "}" {return content} |
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ignored_command_name |
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= "emph" |
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/ "Outro" |
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equation |
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= "$" eq:equation_content "$" {return eq} |
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equation_content |
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= "\\beta_1" { return "Beta1"} |
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/ "\\beta_2" { return "Beta2"} |
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/ "H_2O" { return "H20"} |
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/ "H_2" { return "H2"} |
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/ "O" |
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/ "CO_2" { return "CO2"} |
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/ "5m^2" { return "5m²"} |
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block_standalone_command |
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= "\\capo{" digits:digits "}" { return property("capo", digits)} |
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/ "\\meter{" num:digits "}{" denom:digits "}" { return property("meter", num + "/" + denom)} |
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/ "\\cover" { return ""} |
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/ "\\transposition{" digits:ndigits "}" {return property("transposition", digits)} |
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/ "\\lilypond" " "? "{" file:slug "}" { return property("partition", [file + ".ly"])} |
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/ "\\nolyrics{\\lilypond{" file:slug "}}" { return property("partition", [file + ".ly"])} |
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/ "\\rep{" digits:digits "}" {return property("repeat", digits)} |
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/ guitar_tab |
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/ ukulele_tab |
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guitar_tab |
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= "\\gtab{" name:inline_text "}{" base:basefret frets:([0-9xX]+) "}" { return tab_property(name, base, frets, false, false)} |
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/ "\\gtab*{" name:inline_text "}{" base:basefret frets:([0-9xX]+) ":"? "}" { return tab_property(name, base, frets, true, false)} |
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/ "\\gtab" "*"? "{" name:inline_text "}{}" { return ""} |
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ukulele_tab |
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= "\\utab{" name:inline_text "}{" base:basefret frets:([0-9xX]+) "}" { return tab_property(name, base, frets, false, true)} |
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/ "\\utab*{" name:inline_text "}{" base:basefret frets:([0-9xX]+) "}" { return tab_property(name, base, frets, true, true)} |
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basefret |
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= digits:digits ":" " "? { return digits; } |
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/ "" { return "0"} |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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language |
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= "\\selectlanguage{" lang:alpha "}" {return property("language", lang);} |
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columnsetting |
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= "\\songcolumns{" num:digits "}" {return property("columns", num);} |
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song |
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= content:(begin_song properties newlines_merge song_blocks newlines_merge end_song newlines_discard scripture_block? newlines_discard) {return content.join(""); } |
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begin_song |
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= "\\beginsong{" title:inline_text "}" {return property("title", title);} |
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end_song |
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= "\\endsong" { return "";} |
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properties |
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= newlines_merge "[" newlines_merge props:property* "]" { return "\n" + props.join("\n")} |
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property |
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= "by={" value:inline_text "}" prop_separator* { return property("artist", value)} |
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/ "cov={" value:slug "}" prop_separator* { return property("cover", value)} |
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/ "album={" value:inline_text "}" prop_separator* { return property("album", value)} |
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/ "url={" value:url "}" prop_separator* { return property("url", value)} |
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/ "original={" value:inline_text "}" prop_separator* { return property("original", value)} |
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prop_separator |
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= "," |
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/ " " |
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/ "%"? newline |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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// @ |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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song_blocks |
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= content:(song_block newlines_merge)* {return megajoin(content)} |
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song_block |
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= block_standalone_command |
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/ verse |
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/ chorus |
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/ bridge |
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/ latex_comment_block |
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/ branching_block |
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/ textnote_block |
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/ musicnote_block |
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/ tablature_block |
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/ repeated_block |
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/ nolyrics_block |
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/ special_block |
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song_block_parts |
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= content:(song_block_part newlines_merge)* {return megajoin(content)} |
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song_block_part |
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= block_standalone_command |
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/ repeated_block_part |
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/ nolyrics_block_part |
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/ musicnote_block_part |
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/ textnote_block_part |
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/ special_block_part |
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/ paragraph_line |
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latex_comment_block |
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= "%" content:[^\r\n]* {return "#" + content.join("")} |
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branching_block |
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= "\\if" condition:[^\r\n]+ newlines {return "#if" + condition.join("") + "\r\n"} |
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/ "\\else" "%"? newlines {return "#else\r\n"} |
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/ "\\fi" "%"? newlines {return "#fi\r\n"} |
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repeated_block |
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= "\\begin{repeatedchords}" newlines c:song_blocks "\\end{repeatedchords}" newlines {return c} |
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repeated_block_part |
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= "\\begin{repeatedchords}" newlines c:song_block_parts "\\end{repeatedchords}" newlines {return c} |
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verse |
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= "\\begin{verse}" newlines c:song_block_parts "\\end{verse}" {return c} |
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/ "\\beginverse" newlines c:song_block_parts "\\endverse" {return c} |
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/ "\\begin{verse*}" newlines c:song_block_parts "\\end{verse*}" {return c} |
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chorus |
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= "\\begin{chorus}" newlines c:song_block_parts "\\end{chorus}" {return blockify("chorus", c, true)} |
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/ "\\beginchorus" newlines c:song_block_parts "\\endchorus" {return blockify("chorus", c, true)} |
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bridge |
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= "\\begin{bridge}" newlines c:song_block_parts "\\end{bridge}" {return blockify("bridge", c, true)} |
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nolyrics_block |
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= "{\\nolyrics " newlines c:song_block_parts "}" {return c} |
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/ "\\nolyrics" "{" c:song_block_parts "}" {return c} |
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nolyrics_block_part |
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= "{\\nolyrics " newlines c:song_block_parts "}" {return c} |
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/ "\\nolyrics" " "? "{" c:song_block_parts "}" {return c} |
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/ "\\nolyrics" {return ""} |
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musicnote_block |
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= "\\musicnote" " "* "{" c:song_block_parts "}" {return blockify("musicnote", c, true)} |
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/ "\\musicnote[" lang:alpha "]" " "* "{" c:song_block_parts "}" {return blockify_param("musicnote", lang, c, true)} |
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musicnote_block_part |
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= "\\musicnote" " "* "{" c:song_block_parts "}" {return c} |
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/ "\\musicnote[" lang:alpha "]" " "* "{" c:song_block_parts "}" {return c} |
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textnote_block |
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= "\\textnote" " "* "{" c:song_block_parts "}" {return blockify("textnote", c, false)} |
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/ "\\textnote[" lang:alpha "]" " "* "{" c:song_block_parts "}" {return blockify_param("textnote", lang, c, false)} |
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textnote_block_part |
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= "\\textnote" " "* "{" c:song_block_parts "}" {return c} |
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/ "\\textnote[" lang:alpha "]" " "* "{" c:song_block_parts "}" {return c} |
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/ "\\textbf" " "* "{" c:song_block_parts "}" {return "**" + c + "**"} |
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scripture_block |
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= "\\beginscripture{}" "%"? newlines c:song_block_parts "\\endscripture" "%"? {return blockify("scripture", c, true)} |
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/ "\\beginscripture{" comment:inline_text "}" newlines c:song_block_parts "\\endscripture" "%"? {return blockify_param("scripture", comment, c, true)} |
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special_block |
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= "\\Bridge" {return blockify("textnote", "Bridge", false)} |
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/ "\\image[" [^\]]+ "]{" [^}]+ "}" {return ""} |
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/ "\\MultiwordChords" { return ""} |
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special_block_part |
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= "\\Outro : " "{" newlines c:song_block_parts "}" {return c} |
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/ "\\ifrepeatchords" c:song_block_parts "\\fi" {return c} |
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/ "\\ifchorded" newline c:song_block_parts "\\fi" {return c} |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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// Line |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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paragraph_line |
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= content:paragraph_line_elt+ paragraph_line_elt_comment? {return content.join("")} |
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/ paragraph_line_elt_comment |
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paragraph_line_elt_comment |
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= "%" newline { return ""} |
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/ "%" c:[^\r\n]+ newline { return "\r\n#" + c.join("")} |
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paragraph_line_elt |
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= inline_text |
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/ chord |
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/ command_in_paragraph |
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command_in_paragraph |
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= "\\emph{" c:paragraph_line "}" {return c} |
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/ "\\echo{" c:song_block_parts "}" {return blockify("echo", c, false)} |
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/ "\\" c:ignored_command_in_paragraph "{}"? { return c} |
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ignored_command_in_paragraph |
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= "Intro" |
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/ "Chorus" |
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/ "Bridge" |
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/ "Verse" |
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/ "Rythm" |
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/ "Outro" |
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/ "Solo" |
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/ "Pattern" |
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chord |
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= "\\[" chordname:inline_text "]" " "? "{" text:inline_text "}" {return "[" + chordname_split(chordname) + "]" + text} |
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/ "\\[" chordname:inline_text "]" {return "[" + chordname_split(chordname) + "]"} |
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newlines_discard |
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= newlines {return ""; } |
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newlines_merge |
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= lines:newline* {return (lines.length>0)?"\r\n":""; } |
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newlines |
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= lines:newline* {return lines.join(""); } |
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newline |
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= " "* newline_char " "* |
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newline_char |
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= "\r\n" |
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/ "\r" |
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/ "\n" |
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tablature_block |
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= " "* "\\begin{tab}" content:tablature_block_line+ "\\end{tab}" {return "#Tabs\n# " +content.join("# ")} |
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tablature_block_line |
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= newlines t:tablature_command newlines { return t + "\r\n"} |
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tablature_command |
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= "\\single " chord:digit " " fret:digits { return "single chord:" + chord + " fret:" + fret} |
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/ "\\bar" { return "bar"} |
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File diff suppressed because it is too large
@ -0,0 +1,6 @@ |
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Include the parser_latex.js file. |
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run parser.parse(content); to convert the latex content to chordpro. |
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You can test it online at: |
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http://pegjs.org/online |
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Just copy and paste the grammar |
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Reference in new issue