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%{
#include "location.h"
#include "formula_tab.hh"
extern YYLTYPE fmla_lloc;
#define YY_USER_ACTION SET_LLOC(fmla_);
%}
%option nounput
%option noyy_top_state
%option stack
%option yylineno
%option prefix="fmla_"
%option never-interactive
%x CMT
%%
/* comments */
<*>"/*" {yy_push_state(CMT);}
<CMT>[^*\n]*
<CMT>"*"+[^*/\n]*
<CMT>"*"+"/" {yy_pop_state();}
<CMT>[\n]
"//".*\n
/* initial spaces or tabs are ignored */
[ \t\r\n]
[+] {return YPLUS;}
[-] {return YMINUS;}
[*] {return YTIMES;}
[/] {return YDIVIDE;}
[\^] {return YPOWER;}
exp {return YEXP;}
log {return YLOG;}
sin {return YSIN;}
cos {return YCOS;}
tan {return YTAN;}
sqrt {return YSQRT;}
erf {return YERF;}
erfc {return YERFC;}
diff {return YDIFF;}
/* names: parameters, variables (lagged/leaded) */
[A-Za-z_][A-Za-z0-9_]*([\(\{][+-]?[0-9]+[\)\}])? {
fmla_lval.string=fmla_text;
return NAME;
}
/* floating point numbers */
(([0-9]*\.?[0-9]+)|([0-9]+\.))([edED][-+]?[0-9]+)? {
fmla_lval.string=fmla_text;
return DNUMBER;
}
= {return EQUAL_SIGN;}
. {return fmla_text[0];}
%%
int fmla_wrap()
{
return 1;
}
void fmla__destroy_buffer(void* p)
{
fmla__delete_buffer((YY_BUFFER_STATE)p);
}
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