210 lines
8.0 KiB
Plaintext
210 lines
8.0 KiB
Plaintext
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%{
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function ERR(yy, err){
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console.log("hmmlib error: L%d: %s\n", yy.line, err);
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throw { message: err, line: yy.line };
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}
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function CHECKESCAPE(yy, str){
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if("[]:@~\\\"".indexOf(str) == -1){
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ERR(yy, "hmmlib: Unknown backslash escape code: %s", str);
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}
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}
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function UNQUOTE(yy, str){
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var i = 0;
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var j = 0;
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while((j = str.indexOf('\\', i)) != -1){
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CHECKESCAPE(yy, str.charAt(j));
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str = str.slice(i, j) + str.slice(j+1);
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i = j+1;
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}
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return str;
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}
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function M_(yy, str, s){
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yy.an.markers.push({ type: str });
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yy.mnext = s;
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}
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function M_ADD(yy, t, n){
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yy.an.markers[yy.an.markers.length - 1].marker = t.substr(0, n);
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yy.an.markers[yy.an.markers.length - 1].offset = yy.an.text.length;
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if(yy.mnext === "TEXT"){
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yy.an.text += t.substr(0, n);
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}
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}
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function MX_ADD(yy, c){
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var m = yy.an.markers[yy.an.markers.length - 1];
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if(m.parameter){
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m.parameter += c;
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} else {
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m.parameter = c;
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}
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yy.an.text += c;
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}
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function NEWANNO(yy){
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if(!yy.first) yy.annos.push(yy.an);
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yy.an = {
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line: yy.line,
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text: "",
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references: [],
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markers: [],
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};
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yy.an.line = yy.line;
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yy.first = false;
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}
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%}
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%option reentrant
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%option noyywrap
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S [\t \r]*
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SP [\t \r]+
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ATTR_SIMPLE [^\" \]\t\r\n][^ \]\t\r\n]*
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ATTR_ALNUM [0-9a-zA-Z][0-9a-zA-Z_]*
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ATTR_QUOTED \"([^\n\"\\]|\\.)*\"
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TAG_VIDEO_OPEN "[video"
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TIMECODE \[[0-9]{1,2}(\:[0-5][0-9]){1,2}\]
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BAD_TIMECODE \[[0-9]{1,2}(\:[6-9][0-9]){1,2}\]
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TEXT_BREAK [^\\\:\@\~\[\]\r\n\t ]
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LB \[
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RB \]
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%s VIDEO
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%s V_ATTR
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%s V2_ATTR
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%s ANNOTATION
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%s TEXT_START
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%s TEXT
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%s MARKER
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%s MARKER_XTRA
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%s REF
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%s R_ATTR
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%s AFTERTEXT
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%s AUTHOR
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%s CATEGORIES
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%s QUOTES
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%%
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<<EOF>> { ERR(yy, "Unexpected EOF, video close tag not found."); }
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\r\n|\n { yy.line++; }
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<INITIAL>{TAG_VIDEO_OPEN} { yy_.begin("VIDEO"); }
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<INITIAL>. { ERR(yy, "Missing video tag."); }
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<VIDEO>{SP} {}
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<VIDEO>member{S}\= { yy.attr = "member"; yy_.begin("V_ATTR"); }
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<VIDEO>stream_platform{S}\= { yy.attr = "stream_platform"; yy_.begin("V_ATTR"); }
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<VIDEO>stream_username{S}\= { yy.attr = "stream_username"; yy_.begin("V_ATTR"); }
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<VIDEO>project{S}\= { yy.attr = "project"; yy_.begin("V_ATTR"); }
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<VIDEO>title{S}\= { yy.attr = "title"; yy_.begin("V_ATTR"); }
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<VIDEO>vod_platform{S}\= { yy.attr = "vod_platform"; yy_.begin("V_ATTR"); }
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<VIDEO>id{S}\= { yy.attr = "id"; yy_.begin("V_ATTR"); }
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<VIDEO>co\-host{S}\= { yy.attr = "co_hosts" yy_.begin("V2_ATTR"); }
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<VIDEO>guest{S}\= { yy.attr = "guests" yy_.begin("V2_ATTR"); }
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<VIDEO>annotator{S}\= { yy.attr = "annotators"; yy_.begin("V2_ATTR"); }
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<VIDEO>\] { yy_.begin("ANNOTATION"); };
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<VIDEO>. { ERR(yy, "Invalid char '"+ yytext +"' in video tag."); }
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<V_ATTR>{SP} { yy_.begin("VIDEO"); }
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<V_ATTR>{ATTR_SIMPLE} { yy.meta[yy.attr] = yytext; yy_.begin("VIDEO"); }
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<V_ATTR>{ATTR_QUOTED} { yy.meta[yy.attr] = UNQUOTE(yy, yytext.substr(1, yyleng-2)); yy_.begin("VIDEO"); }
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<V_ATTR>\] { yy_.less(0); yy_.begin("VIDEO"); }
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<V2_ATTR>{SP} { yy_.begin("VIDEO"); }
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<V2_ATTR>{ATTR_SIMPLE} { yy.meta[yy.attr].push(yytext); yy_.begin("VIDEO"); }
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<V2_ATTR>{ATTR_QUOTED} { yy.meta[yy.attr].push(UNQUOTE(yy, yytext.substr(1, yyleng-2))); yy_.begin("VIDEO"); }
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<V2_ATTR>\] { yy_.less(0); yy_.begin("VIDEO"); }
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<ANNOTATION>\[\/video\] { NEWANNO(yy); return 1; }
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<ANNOTATION>{TIMECODE}{LB}\@ { NEWANNO(yy); yy.an.time = yytext.substr(1, yyleng-4); yy_.begin("AUTHOR"); }
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<ANNOTATION>{TIMECODE} { NEWANNO(yy); yy.an.time = yytext.substr(1, yyleng-2); yy_.begin("TEXT_START"); }
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<ANNOTATION>{BAD_TIMECODE} { ERR(yy, "Timecode '"+ yytext +"' out of range."); }
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<ANNOTATION>{SP} {}
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<ANNOTATION>. { ERR(yy, "Cannot parse annotation. Expected timecode."); }
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<TEXT_START>{LB}\: { M_(yy, "CATEGORY", "TEXT"); yy_.begin("MARKER"); }
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<TEXT_START>{LB}\@ { M_(yy, "MEMBER" , "TEXT"); yy_.begin("MARKER"); }
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<TEXT_START>{LB}\~ { M_(yy, "PROJECT" , "TEXT"); yy_.begin("MARKER"); }
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<TEXT_START>{LB} { yy_.less(0); yy_.begin("TEXT"); }
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<TEXT_START>. { ERR(yy, "Unknown character '"+ yytext +"' after timecode."); }
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<TEXT>{TEXT_BREAK}+ { yy.an.text += yytext; }
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<TEXT>\\. { CHECKESCAPE(yy, yytext.charAt(1)); yy.an.text += yytext.substr(1, yyleng-1); }
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<TEXT>[ \r\t]+\: { yy.an.text += ' '; M_(yy, "CATEGORY", "TEXT"); yy_.begin("MARKER"); }
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<TEXT>[ \r\t]+\@ { yy.an.text += ' '; M_(yy, "MEMBER" , "TEXT"); yy_.begin("MARKER"); }
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<TEXT>[ \r\t]+\~ { yy.an.text += ' '; M_(yy, "PROJECT" , "TEXT"); yy_.begin("MARKER"); }
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<TEXT>{LB}\: { M_(yy, "CATEGORY", "MARKER_XTRA"); yy_.begin("MARKER"); }
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<TEXT>{LB}\@ { M_(yy, "MEMBER" , "MARKER_XTRA"); yy_.begin("MARKER"); }
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<TEXT>{LB}\~ { M_(yy, "PROJECT" , "MARKER_XTRA"); yy_.begin("MARKER"); }
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<TEXT>\] { yy_.begin("AFTERTEXT"); }
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<TEXT>{LB}ref { yy.ref.offset = yy.an.text.length; yy_.begin("REF"); }
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<TEXT>{LB} {}
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<TEXT>{SP} { yy.an.text += ' '; }
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<TEXT>. { yy.an.text += yytext; }
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<MARKER>{ATTR_ALNUM} { M_ADD(yy, yytext); yy_.begin(yy.mnext); };
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<MARKER>{ATTR_QUOTED} { M_ADD(yy, yytext.substr(1, yyleng-2)); yy_.begin(yy.mnext); };
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<MARKER>. { ERR(yy, "Cannot parse Marker. Expected quoted or alphanumeric attribute."); }
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<MARKER_XTRA>\\] { MX_ADD(yy, ']'); }
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<MARKER_XTRA>\\\# { MX_ADD(yy, '#'); }
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<MARKER_XTRA>\] { yy_.begin("TEXT"); }
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<MARKER_XTRA>[ ] { if(yy.an.markers[yy.an.markers.length - 1].parameter){ MX_ADD(yy, ' '); } }
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<MARKER_XTRA>[ ]\#[0-9]+ {
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var m = yy.an.markers[yy.an.markers.length - 1];
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if(m.type == "PROJECT"){
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m.episode = yytext.substr(2);
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} else {
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MX_ADD(yytext.substr(1));
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}
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}
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<MARKER_XTRA>. { MX_ADD(yy, yytext); }
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<REF>{SP} {}
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<REF>site{S}\= { yy.attr = "site"; yy_.begin("R_ATTR"); }
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<REF>page{S}\= { yy.attr = "page"; yy_.begin("R_ATTR"); }
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<REF>url{S}\= { yy.attr = "url"; yy_.begin("R_ATTR"); }
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<REF>title{S}\= { yy.attr = "title"; yy_.begin("R_ATTR"); }
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<REF>article{S}\= { yy.attr = "article"; yy_.begin("R_ATTR"); }
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<REF>author{S}\= { yy.attr = "author"; yy_.begin("R_ATTR"); }
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<REF>editor{S}\= { yy.attr = "editor"; yy_.begin("R_ATTR"); }
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<REF>publisher{S}\= { yy.attr = "publisher"; yy_.begin("R_ATTR"); }
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<REF>isbn{S}\= { yy.attr = "isbn"; yy_.begin("R_ATTR"); }
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<REF>\] { yy.an.references.push(yy.ref); yy.ref = {}; yy_.begin("TEXT"); }
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<REF>. { ERR(yy, "Unexpected item in ref: " + yytext); }
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<R_ATTR>{SP} {}
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<R_ATTR>{ATTR_SIMPLE} { yy.ref[yy.attr] = yytext; yy_.begin("REF"); }
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<R_ATTR>{ATTR_QUOTED} { yy.ref[yy.attr] = UNQUOTE(yy, yytext.substr(1, yyleng-2)); yy_.begin("REF"); }
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<AFTERTEXT>\[\/video\] { NEWANNO(yy); return 1; }
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<AFTERTEXT>{SP} {}
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<AFTERTEXT>{LB}quote { yy_.begin("QUOTES"); }
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<AFTERTEXT>{LB}\: { yy_.begin("CATEGORIES"); yy_.less(1); }
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<AFTERTEXT>{LB}[0-9] { yy_.begin("ANNOTATION"); yy_.less(0); }
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<AFTERTEXT>.. { ERR(yy, "Unexpected thing after text node: " + yytext); }
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<AFTERTEXT>. { ERR(yy, "Unexpected thing after text node: " + yytext); }
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<AUTHOR>[^\]\n]+\] { yy.an.author = yytext.substr(0, yyleng-1); yy_.begin("TEXT_START"); }
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<AUTHOR>{SP} {}
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<CATEGORIES>{SP} {}
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<CATEGORIES>\:{ATTR_SIMPLE} { yy.an.markers.push({ type: "CATEGORY", marker: yytext.substr(1, yyleng-1), offset: -1 }); }
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<CATEGORIES>\:{ATTR_QUOTED} { yy.an.markers.push({ type: "CATEGORY", marker: UNQUOTE(yy, yytext.substr(2, yyleng-3)), offset: -1 }); }
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<CATEGORIES>\]{LB} { yy_.begin("QUOTES"); }
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<CATEGORIES>\] { yy_.begin("ANNOTATION"); }
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<CATEGORIES>. { ERR(yy, "Unexpected character in category tag: " + yytext); }
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<QUOTES>{SP} {}
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<QUOTES>[0-9]+{S}\] { yy.an.quote = { author: "", id: parseInt(yytext) }; yy_.begin("ANNOTATION"); }
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<QUOTES>{ATTR_ALNUM} { yy.an.quote.author += yytext; }
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<QUOTES>. { ERR(yy, "Unexpected character in quotes tag: " + yytext); }
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%%
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