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/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4 -*- */
/* Scanner for the Faust language */
%{
#include "tree.hh"
#include "faustparser.hpp"
#include <unistd.h>
%}
DIGIT [0-9]
ID [a-zA-Z][_a-zA-Z0-9]*
LETTER [a-zA-Z]
NUMBER ({DIGIT}+"."{DIGIT}*|"."{DIGIT}+|{DIGIT}+)
WSPACE [ \t\n]
TMACRO \\{ID}(\[(\ *({ID}|{NUMBER}),?\ *)\])?(\{(\ *({ID}|{NUMBER}),?\ *)*\})*
%option yylineno
%x comment
%x doc
%x lst
%%
"/*" BEGIN(comment);
<comment>[^*\x0a\x0d]* /* eat anything that's not a '*' */
<comment>"*"+[^*/\x0a\x0d]* /* eat up '*'s not followed by '/'s */
<comment>\x0a\x0d /* no need to increment yylineno here */
<comment>\x0a /* no need to increment yylineno here */
<comment>\x0d /* no need to increment yylineno here */
<comment>"*"+"/" BEGIN(INITIAL);
"<mdoc>" { BEGIN(doc); return BDOC; }
<doc>. return DOCCHAR; /* char by char, may be slow ?? */
<doc>\n return DOCCHAR; /* keep newline chars */
<doc>"<notice/>" return NOTICE; /* autoclosing tag */
<doc>"<notice />" return NOTICE; /* autoclosing tag */
<doc>"<listing" { BEGIN(lst); return BLST; } /* autoclosing tag */
<doc>"<equation>" { BEGIN(INITIAL); return BEQN; }
"</equation>" { BEGIN(doc); return EEQN; }
<doc>"<diagram>" { BEGIN(INITIAL); return BDGM; }
"</diagram>" { BEGIN(doc); return EDGM; }
<doc>"<metadata>" { BEGIN(INITIAL); return BMETADATA; }
"</metadata>" { BEGIN(doc); return EMETADATA; }
<doc>"</mdoc>" { BEGIN(INITIAL); return EDOC; }
<lst>"true" return LSTTRUE;
<lst>"false" return LSTFALSE;
<lst>"dependencies" return LSTDEPENDENCIES;
<lst>"mdoctags" return LSTMDOCTAGS;
<lst>"distributed" return LSTDISTRIBUTED;
<lst>"=" return LSTEQ;
<lst>"\"" return LSTQ;
<lst>"/>" { BEGIN(doc); return ELST; }
{DIGIT}+ return INT;
{DIGIT}+"."{DIGIT}* return FLOAT;
{DIGIT}+"."{DIGIT}*e[-+]?{DIGIT}+ return FLOAT;
{DIGIT}+e[-+]?{DIGIT}+ return FLOAT;
"."{DIGIT}+ return FLOAT;
"."{DIGIT}+e[-+]?{DIGIT}+ return FLOAT;
":" return SEQ;
"," return PAR;
"<:" return SPLIT;
"+>" return MIX;
":>" return MIX;
"~" return REC;
"+" return ADD;
"-" return SUB;
"*" return MUL;
"/" return DIV;
"%" return MOD;
"@" return FDELAY;
"'" return DELAY1;
"&" return AND;
"|" return OR;
"xor" return XOR;
"<<" return LSH;
">>" return RSH;
"<" return LT;
"<=" return LE;
">" return GT;
">=" return GE;
"==" return EQ;
"!=" return NE;
"_" return WIRE;
"!" return CUT;
";" return ENDDEF;
"=" return DEF;
"(" return LPAR;
")" return RPAR;
"{" return LBRAQ;
"}" return RBRAQ;
"[" return LCROC;
"]" return RCROC;
"\\" return LAMBDA;
"." return DOT;
"with" return WITH;
"mem" return MEM;
"prefix" return PREFIX;
"int" return INTCAST;
"float" return FLOATCAST;
"rdtable" return RDTBL;
"rwtable" return RWTBL;
"select2" return SELECT2;
"select3" return SELECT3;
"ffunction" return FFUNCTION;
"fconstant" return FCONSTANT;
"fvariable" return FVARIABLE;
"button" return BUTTON;
"checkbox" return CHECKBOX;
"vslider" return VSLIDER;
"hslider" return HSLIDER;
"nentry" return NENTRY;
"vgroup" return VGROUP;
"hgroup" return HGROUP;
"tgroup" return TGROUP;
"vbargraph" return VBARGRAPH;
"hbargraph" return HBARGRAPH;
"attach" return ATTACH;
"acos" return ACOS;
"asin" return ASIN;
"atan" return ATAN;
"atan2" return ATAN2;
"cos" return COS;
"sin" return SIN;
"tan" return TAN;
"exp" return EXP;
"log" return LOG;
"log10" return LOG10;
"^" return POWOP;
"pow" return POWFUN;
"sqrt" return SQRT;
"abs" return ABS;
"min" return MIN;
"max" return MAX;
"fmod" return FMOD;
"remainder" return REMAINDER;
"floor" return FLOOR;
"ceil" return CEIL;
"rint" return RINT;
"seq" return ISEQ;
"par" return IPAR;
"sum" return ISUM;
"prod" return IPROD;
"import" return IMPORT;
"component" return COMPONENT;
"library" return LIBRARY;
"environment" return ENVIRONMENT;
"declare" return DECLARE;
"case" return CASE;
"=>" return ARROW;
_{ID} return IDENT;
{ID} return IDENT;
"\""[^\"]*"\"" return STRING;
"<"{LETTER}*"."{LETTER}">" return FSTRING;
"<"{LETTER}*">" return FSTRING;
"//"[^\x0a\x0d]* /* eat up one-line comments */
[ \t\x0a\x0d]+ /* eat up whitespace */
<<EOF>> yyterminate();
. printf("extra text is : %s\n", yytext); return EXTRA;
%%
int yywrap() { return 1; }
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