songbook [from: Songs data for LaTeX songbooks http:///www.patacrep.com]
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 

397 lines
13 KiB

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