%{

#include "context.h"
#include "libformatmanglingdextype_la-type_gram.h"

/* See lemoda.net/c/reentrant-parser */

%}


%option noyywrap
%option yylineno
%option nounput
/*%option noinput*/
%option reentrant
%option bison-bridge

%x string

ASCII       [A-Za-z0-9]
SIMPLE      {ASCII}|"$"|"-"|"_"

%%

"V"                     { return V; }
"Z"                     { return Z; }
"B"                     { return B; }
"S"                     { return S; }
"C"                     { return C; }
"I"                     { return I; }
"J"                     { return J; }
"F"                     { return F; }
"D"                     { return D; }
"L"                     { BEGIN(string); return L; }
"["*                    { yylval->adeep = strlen(yytext); return ARRAY; }
<string>"/"             { return SLASH; }
<string>";"             { BEGIN(INITIAL); return SEMICOLON; }

<string>{SIMPLE}*       { yylval->text = yytext; return TEXT; }

<string>.               {
                            unsigned char next;
                            char mutf8[4];

                            switch ((unsigned char)yytext[0])
                            {
                                /* U+00a1 ... U+1fff */
                                case 0x00 ... 0x1f:

                                    next = input(yyscanner);

                                    if (yytext[0] == 0x00 && next < 0xa1)
                                    {
                                        REJECT;
                                    }

                                    else
                                    {
                                        mutf8[0] = yytext[0];
                                        mutf8[1] = next;
                                        mutf8[2] = '\0';

                                        strcpy(yylval->text, mutf8); return TEXT;

                                    }

                                    break;

                                /* U+2010 ... U+2027 / U+2030 ... U+d7ff */
                                case 0x20:

                                    next = input(yyscanner);

                                    switch (next)
                                    {
                                        case 0x10 ... 0x27:
                                        case 0x30 ... 0xff:

                                            mutf8[0] = yytext[0];
                                            mutf8[1] = next;
                                            mutf8[2] = '\0';

                                            strcpy(yylval->text, mutf8); return TEXT;
                                            break;

                                        default:
                                            REJECT;
                                            break;

                                    }

                                    break;

                                /* ~ U+2030 ... U+d7ff */
                                case 0x21 ... 0xd7:

                                    next = input(yyscanner);

                                    mutf8[0] = yytext[0];
                                    mutf8[1] = next;
                                    mutf8[2] = '\0';

                                    strcpy(yylval->text, mutf8); return TEXT;
                                    break;

                                /* U+e000 ... U+ffef */
                                case 0xe0 ... 0xff:

                                    next = input(yyscanner);

                                    if (yytext[0] == 0xff && next > 0xef)
                                    {
                                        REJECT;
                                    }

                                    else
                                    {
                                        mutf8[0] = yytext[0];
                                        mutf8[1] = next;
                                        mutf8[2] = '\0';

                                        strcpy(yylval->text, mutf8); return TEXT;

                                    }

                                    break;

                                /* U+10000 ... U+10ffff */
                                /*
                                case 0x10:

                                    mutf8[0] = yytext[0];
                                    mutf8[1] = input(yyscanner);
                                    mutf8[2] = input(yyscanner);
                                    mutf8[3] = '\0';

                                    strcpy(yylval->text, mutf8); return TEXT;
                                    break;
                                */

                                default:
                                    REJECT;
                                    break;

                            }

                        }

%%