parser_nt.c

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/* Generated by re2c 4.5.1 on Sun Jul  5 01:01:35 2026 */
#line 1 "lexer_nt.re"
// vim:ft=c
#include "volksdata/codec/parser_nt.h"
#include "volksdata/codec/tokens_nt.h"
 
#line 1 "../../include/volksdata/codec/parser_common.h"
#ifndef VOLK_PARSER_COMMON_H
#define VOLK_PARSER_COMMON_H
 
#include "volksdata/codec_interface.h"
 

#define YYCTYPE     uint8_t
#define YYCURSOR    it->cur
#define YYMARKER    it->mar
#define YYLIMIT     it->lim
#define YYFILL      fill(it) == 0
 
 
typedef struct parse_it_t {
    FILE          * fh;         
    const char    * sh;         
    size_t          buf_size;   
    YYCTYPE       * buf,        
                  * lim,        
                  * cur,        
                  * mar,        
                  * tok,        
                  * bol;        
    unsigned        line;       
    unsigned        ct;         
    bool            eof;        
    
#line 50 "parser_nt.c"
YYCTYPE *yyt1;YYCTYPE *yyt2;YYCTYPE *yyt3;
#line 41 "../../include/volksdata/codec/parser_common.h"
 
} ParseIterator;
 
 
static inline void newline (ParseIterator *it) {
    it->line ++;
    it->bol = YYCURSOR;
    log_trace ("New line: #%u.", it->line);
}
 
 
static int fill(ParseIterator *it);
 

static void parse_init (ParseIterator *it, FILE *fh, const char *sh)
{
    if(fh) {
        // Stream handling. It engages YYFILL and reads by chunks.
        it->fh = fh;
        it->sh = NULL;
        it->buf_size = CHUNK_SIZE;
        it->buf = malloc(it->buf_size);
        if (!it->buf) log_error ("Error allocating lexer buffer.");
        it->cur = it->mar = it->tok = it->lim = it->buf + it->buf_size - 1;
        it->bol = it->buf;
        it->eof = false;
        it->lim[0] = 0;
    } else {
        // String handling. Uses the provided string as the buffer.
        it->fh = NULL;
        it->sh = sh;
        it->buf_size = strlen(sh) + 1;
        it->buf = NULL;
        it->cur = it->tok = (YYCTYPE*)it->sh;
        it->lim = it->mar = it->cur + it->buf_size - 1;
        it->bol = it->cur;
        it->eof = true;
    }
    it->line = 1;
    it->ct = 0;
    
#line 103 "parser_nt.c"
it->yyt1 = NULL; it->yyt2 = NULL; it->yyt3 = NULL; 
#line 90 "../../include/volksdata/codec/parser_common.h"
 
}
 
 
int
fill(ParseIterator *it)
{
    log_debug ("Filling codec buffer @ %p.", it->buf);
    if (it->eof) return 1;
 
    size_t shift = it->tok - it->buf;
    size_t used = it->lim - it->tok;
 
    // If buffer is too small for the lexeme, double the capacity.
    if (shift < 1) {
        shift += it->buf_size;
        it->buf_size *= 2;
        // Store offsets to reapply to moved buffer.
        size_t
            cur_off = it->cur - it->buf,
            tok_off = it->tok - it->buf,
            lim_off = it->lim - it->buf,
            mar_off = it->mar - it->buf;
 
        log_debug ("Reallocating buffer to %zu bytes.", it->buf_size);
        YYCTYPE *tmp = realloc (it->buf, it->buf_size);
        if (!tmp) {
            log_error ("Memory allocation error.");
            return -1;
        }
        it->buf = tmp;
        // Move all relative points if address changed.
        it->cur = it->buf + cur_off;
        it->tok = it->buf + tok_off;
        it->lim = it->buf + lim_off;
        it->mar = it->buf + mar_off;
    } else {
        log_debug ("Shifting bytes: %zu", shift);
        memmove (it->buf, it->tok, used);
        log_trace ("Limit offset before reading data: %zu", it->lim - it->tok);
        it->lim -= shift;
        it->cur -= shift;
        it->mar -= shift;
        it->tok -= shift;
    }
    it->lim += fread (it->lim, 1, it->buf_size - used - 1, it->fh);
    
#line 153 "parser_nt.c"
if (it->yyt1) it->yyt1 -= shift; if (it->yyt2) it->yyt2 -= shift; if (it->yyt3) it->yyt3 -= shift; 
#line 136 "../../include/volksdata/codec/parser_common.h"
 
    log_trace ("Cursor offset from last token: %zu", it->cur - it->tok);
    log_trace ("Limit offset from last token: %zu", it->lim - it->tok);
    it->lim[0] = 0;
    it->eof = it->lim < it->buf + it->buf_size - 1;
    return 0;
}
 
 
#endif // VOLK_PARSER_COMMON_H
#line 5 "lexer_nt.re"
 
 
 
// Parser interface. Required here to silence linters.
void *NTParseAlloc();
void NTParse();
void NTParseFree();
#ifdef VOLK_CODEC_DEBUG
void NTParseTrace();
#endif
 
// Lexer.
 
static int lex (ParseIterator *it, VOLK_Term **term)
{
    const YYCTYPE *lit_data_e, *dtype_s, *lang_s;
 
loop:
    it->tok = it->cur;
    *term = NULL;
 
    
#line 189 "parser_nt.c"
{
    YYCTYPE yych;
    unsigned int yyaccept = 0;
yyFillLabel0:
    yych = *YYCURSOR;
    switch (yych) {
        case '\t':
        case ' ': goto yy3;
        case '\n':
        case '\r': goto yy5;
        case '"': goto yy7;
        case '#': goto yy8;
        case '.': goto yy10;
        case '<': goto yy11;
        case '_': goto yy12;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel0;
                goto yy110;
            }
            goto yy1;
    }
yy1:
    ++YYCURSOR;
yy2:
#line 134 "nt_def.re.inc"
    {
    log_error (
        "Invalid token @ %p: %s (\\x%x)",
        YYCURSOR - it->buf - 1, it->tok, *it->tok);
 
    return -1;
}
#line 223 "parser_nt.c"
yy3:
    ++YYCURSOR;
yyFillLabel1:
    yych = *YYCURSOR;
    switch (yych) {
        case '\t':
        case ' ': goto yy3;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel1;
            }
            goto yy4;
    }
yy4:
#line 117 "nt_def.re.inc"
    {
    log_debug ("Separator.");
 
    return T_WS;
}
#line 244 "parser_nt.c"
yy5:
    ++YYCURSOR;
yyFillLabel2:
    yych = *YYCURSOR;
    switch (yych) {
        case '\t' ... '\n':
        case '\r':
        case ' ': goto yy5;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel2;
            }
            goto yy6;
    }
yy6:
#line 33 "nt_def.re.inc"
    {
    it->line ++;
    it->bol = YYCURSOR;
    log_debug ("New line: #%u.", it->line);
    return T_EOL;
}
#line 267 "parser_nt.c"
yy7:
    yyaccept = 0;
    YYMARKER = ++YYCURSOR;
yyFillLabel3:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x00:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel3;
                goto yy2;
            }
            goto yy13;
        case 0x01 ... '\t':
        case '\v' ... '\f':
        case 0x0E ... 0x7F:
        case 0xC2 ... 0xF4: goto yy14;
        default: goto yy2;
    }
yy8:
    yyaccept = 1;
    YYMARKER = ++YYCURSOR;
yyFillLabel4:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x00:
        case 0x01 ... '\t':
        case '\v' ... 0x7F:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel4;
                goto yy9;
            }
            goto yy8;
        case 0xC2 ... 0xDF: goto yy25;
        case 0xE0: goto yy26;
        case 0xE1 ... 0xEF: goto yy27;
        case 0xF0: goto yy28;
        case 0xF1 ... 0xF3: goto yy29;
        case 0xF4: goto yy30;
        default: goto yy9;
    }
yy9:
#line 123 "nt_def.re.inc"
    {
    size_t size = YYCURSOR - it->tok + 1;
    YYCTYPE *data = malloc (size);
    memcpy (data, it->tok, size);
    data [size - 1] = '\0';
    log_debug ("Comment: `%s`", data);
    free (data);
 
    goto loop;
}
#line 320 "parser_nt.c"
yy10:
    ++YYCURSOR;
#line 110 "nt_def.re.inc"
    {
    log_debug ("End of triple.");
    it->ct ++;
 
    return T_DOT;
}
#line 330 "parser_nt.c"
yy11:
    yyaccept = 0;
    YYMARKER = ++YYCURSOR;
yyFillLabel5:
    yych = *YYCURSOR;
    switch (yych) {
        case '!':
        case '#' ... ';':
        case '=' ... ']':
        case '_':
        case 'a' ... 'z':
        case '~' ... 0x7F:
        case 0xC2 ... 0xF4: goto yy32;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel5;
            }
            goto yy2;
    }
yy12:
    yyaccept = 0;
    YYMARKER = ++YYCURSOR;
yyFillLabel6:
    yych = *YYCURSOR;
    switch (yych) {
        case ':': goto yy41;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel6;
            }
            goto yy2;
    }
yy13:
    ++YYCURSOR;
yyFillLabel7:
    yych = *YYCURSOR;
yy14:
    switch (yych) {
        case 0x00:
        case 0x01 ... '\t':
        case '\v' ... '\f':
        case 0x0E ... '!':
        case '#' ... '[':
        case ']' ... 0x7F:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel7;
                goto yy15;
            }
            goto yy13;
        case '"': goto yy16;
        case '\\': goto yy18;
        case 0xC2 ... 0xDF: goto yy19;
        case 0xE0: goto yy20;
        case 0xE1 ... 0xEF: goto yy21;
        case 0xF0: goto yy22;
        case 0xF1 ... 0xF3: goto yy23;
        case 0xF4: goto yy24;
        default: goto yy15;
    }
yy15:
    YYCURSOR = YYMARKER;
    switch (yyaccept) {
        case 0: goto yy2;
        case 1: goto yy9;
        case 2:
            it->yyt1 = YYCURSOR;
            it->yyt2 = NULL;
            it->yyt3 = NULL;
            goto yy17;
        case 3:
            it->yyt2 = NULL;
            it->yyt3 = NULL;
            goto yy17;
        case 4: goto yy51;
        default:
            it->yyt2 = NULL;
            goto yy17;
    }
yy16:
    yyaccept = 2;
    YYMARKER = ++YYCURSOR;
yyFillLabel8:
    yych = *YYCURSOR;
    switch (yych) {
        case '\t':
        case ' ':
            it->yyt1 = YYCURSOR;
            goto yy42;
        case '@':
            it->yyt1 = YYCURSOR;
            it->yyt3 = YYCURSOR;
            goto yy43;
        case '^':
            it->yyt1 = YYCURSOR;
            goto yy44;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel8;
            }
            it->yyt1 = YYCURSOR;
            it->yyt2 = NULL;
            it->yyt3 = NULL;
            goto yy17;
    }
yy17:
    lit_data_e = it->yyt1;
    dtype_s = it->yyt2;
    lang_s = it->yyt3;
#line 57 "nt_def.re.inc"
    {
    // Only unescape Unicode from data.
    size_t size = lit_data_e - it->tok - 2;
    YYCTYPE *data = unescape_unicode (it->tok + 1, size);
    log_trace ("Literal data: %s", data);
 
    char *metadata = NULL;
    const YYCTYPE *md_marker;
    VOLK_TermType type = VOLK_TERM_LITERAL;
 
    if (dtype_s) {
        md_marker = dtype_s;
        size = YYCURSOR - md_marker - 1;
    } else if (lang_s) {
        type = VOLK_TERM_LT_LITERAL;
        md_marker = lang_s;
        size = YYCURSOR - md_marker;
    } else md_marker = NULL;
 
    if (md_marker) {
        metadata = malloc (size);
        memcpy (metadata, md_marker + 1, size);
        metadata [size - 1] = '\0';
        log_trace ("metadata: %s", metadata);
    }
 
    if (type == VOLK_TERM_LITERAL) {
        VOLK_Term *dtype;
        dtype = (metadata ? VOLK_iriref_new ((char *) metadata) : NULL);
 
        *term = VOLK_literal_new ((char *) data, dtype);
 
    } else *term = VOLK_lt_literal_new ((char *) data, (char *) metadata);
 
    free (data);
    free (metadata);
 
    if (UNLIKELY (!term)) return -1;
    return T_LITERAL;
}
#line 480 "parser_nt.c"
yy18:
    ++YYCURSOR;
yyFillLabel9:
    yych = *YYCURSOR;
    switch (yych) {
        case '"':
        case '\'':
        case '\\':
        case 'b':
        case 'f':
        case 'n':
        case 'r':
        case 't': goto yy13;
        case 'U': goto yy45;
        case 'u': goto yy46;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel9;
            }
            goto yy15;
    }
yy19:
    ++YYCURSOR;
yyFillLabel10:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy13;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel10;
            }
            goto yy15;
    }
yy20:
    ++YYCURSOR;
yyFillLabel11:
    yych = *YYCURSOR;
    switch (yych) {
        case 0xA0 ... 0xBF: goto yy19;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel11;
            }
            goto yy15;
    }
yy21:
    ++YYCURSOR;
yyFillLabel12:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy19;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel12;
            }
            goto yy15;
    }
yy22:
    ++YYCURSOR;
yyFillLabel13:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x90 ... 0xBF: goto yy21;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel13;
            }
            goto yy15;
    }
yy23:
    ++YYCURSOR;
yyFillLabel14:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy21;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel14;
            }
            goto yy15;
    }
yy24:
    ++YYCURSOR;
yyFillLabel15:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0x8F: goto yy21;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel15;
            }
            goto yy15;
    }
yy25:
    ++YYCURSOR;
yyFillLabel16:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy8;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel16;
            }
            goto yy15;
    }
yy26:
    ++YYCURSOR;
yyFillLabel17:
    yych = *YYCURSOR;
    switch (yych) {
        case 0xA0 ... 0xBF: goto yy25;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel17;
            }
            goto yy15;
    }
yy27:
    ++YYCURSOR;
yyFillLabel18:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy25;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel18;
            }
            goto yy15;
    }
yy28:
    ++YYCURSOR;
yyFillLabel19:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x90 ... 0xBF: goto yy27;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel19;
            }
            goto yy15;
    }
yy29:
    ++YYCURSOR;
yyFillLabel20:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy27;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel20;
            }
            goto yy15;
    }
yy30:
    ++YYCURSOR;
yyFillLabel21:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0x8F: goto yy27;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel21;
            }
            goto yy15;
    }
yy31:
    ++YYCURSOR;
yyFillLabel22:
    yych = *YYCURSOR;
yy32:
    switch (yych) {
        case '!':
        case '#' ... ';':
        case '=':
        case '?' ... '[':
        case ']':
        case '_':
        case 'a' ... 'z':
        case '~' ... 0x7F: goto yy31;
        case '>': goto yy33;
        case '\\': goto yy34;
        case 0xC2 ... 0xDF: goto yy35;
        case 0xE0: goto yy36;
        case 0xE1 ... 0xEF: goto yy37;
        case 0xF0: goto yy38;
        case 0xF1 ... 0xF3: goto yy39;
        case 0xF4: goto yy40;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel22;
            }
            goto yy15;
    }
yy33:
    ++YYCURSOR;
#line 45 "nt_def.re.inc"
    {
    YYCTYPE *data = unescape_unicode (it->tok + 1, YYCURSOR - it->tok - 2);
 
    log_debug ("URI data: %s", data);
 
    *term = VOLK_iriref_new ((char*)data);
    free (data);
 
    if (UNLIKELY (!term)) return -1;
    return T_IRIREF;
}
#line 688 "parser_nt.c"
yy34:
    ++YYCURSOR;
yyFillLabel23:
    yych = *YYCURSOR;
    switch (yych) {
        case 'U': goto yy47;
        case 'u': goto yy48;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel23;
            }
            goto yy15;
    }
yy35:
    ++YYCURSOR;
yyFillLabel24:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy31;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel24;
            }
            goto yy15;
    }
yy36:
    ++YYCURSOR;
yyFillLabel25:
    yych = *YYCURSOR;
    switch (yych) {
        case 0xA0 ... 0xBF: goto yy35;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel25;
            }
            goto yy15;
    }
yy37:
    ++YYCURSOR;
yyFillLabel26:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy35;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel26;
            }
            goto yy15;
    }
yy38:
    ++YYCURSOR;
yyFillLabel27:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x90 ... 0xBF: goto yy37;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel27;
            }
            goto yy15;
    }
yy39:
    ++YYCURSOR;
yyFillLabel28:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy37;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel28;
            }
            goto yy15;
    }
yy40:
    ++YYCURSOR;
yyFillLabel29:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0x8F: goto yy37;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel29;
            }
            goto yy15;
    }
yy41:
    ++YYCURSOR;
yyFillLabel30:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... ':':
        case 'A' ... 'Z':
        case '_':
        case 'a' ... 'z':
        case 0xC3 ... 0xCB:
        case 0xCE ... 0xE1:
        case 0xE3 ... 0xED:
        case 0xEF ... 0xF3: goto yy50;
        case 0xCD: goto yy54;
        case 0xE2: goto yy57;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel30;
            }
            goto yy15;
    }
yy42:
    yyaccept = 3;
    YYMARKER = ++YYCURSOR;
yyFillLabel31:
    yych = *YYCURSOR;
    switch (yych) {
        case '\t':
        case ' ': goto yy42;
        case '@':
            it->yyt3 = YYCURSOR;
            goto yy43;
        case '^': goto yy44;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel31;
            }
            it->yyt2 = NULL;
            it->yyt3 = NULL;
            goto yy17;
    }
yy43:
    ++YYCURSOR;
yyFillLabel32:
    yych = *YYCURSOR;
    switch (yych) {
        case 'A' ... 'Z':
        case 'a' ... 'z': goto yy64;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel32;
            }
            goto yy15;
    }
yy44:
    ++YYCURSOR;
yyFillLabel33:
    yych = *YYCURSOR;
    switch (yych) {
        case '^': goto yy65;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel33;
            }
            goto yy15;
    }
yy45:
    ++YYCURSOR;
yyFillLabel34:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy66;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel34;
            }
            goto yy15;
    }
yy46:
    ++YYCURSOR;
yyFillLabel35:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy67;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel35;
            }
            goto yy15;
    }
yy47:
    ++YYCURSOR;
yyFillLabel36:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy68;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel36;
            }
            goto yy15;
    }
yy48:
    ++YYCURSOR;
yyFillLabel37:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy69;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel37;
            }
            goto yy15;
    }
yy49:
    yyaccept = 4;
    YYMARKER = ++YYCURSOR;
yyFillLabel38:
    yych = *YYCURSOR;
yy50:
    switch (yych) {
        case '-':
        case '0' ... ':':
        case 'A' ... 'Z':
        case '_':
        case 'a' ... 'z': goto yy49;
        case '.': goto yy70;
        case 0xC2: goto yy71;
        case 0xC3: goto yy52;
        case 0xC4 ... 0xCC:
        case 0xCE ... 0xDF: goto yy53;
        case 0xCD: goto yy72;
        case 0xE0: goto yy55;
        case 0xE1:
        case 0xE4 ... 0xEC: goto yy56;
        case 0xE2: goto yy73;
        case 0xE3: goto yy58;
        case 0xED: goto yy59;
        case 0xEF: goto yy60;
        case 0xF0: goto yy61;
        case 0xF1 ... 0xF2: goto yy62;
        case 0xF3: goto yy63;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel38;
            }
            goto yy51;
    }
yy51:
#line 98 "nt_def.re.inc"
    {
    YYCTYPE *data = unescape_unicode (it->tok + 2, YYCURSOR - it->tok - 2);
 
    log_debug ("BNode data: %s", data);
 
    *term = VOLK_term_new (VOLK_TERM_BNODE, (char*)data, NULL);
    free (data);
 
    if (UNLIKELY (!term)) return -1;
    return T_BNODE;
}
#line 943 "parser_nt.c"
yy52:
    ++YYCURSOR;
yyFillLabel39:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0x96:
        case 0x98 ... 0xB6:
        case 0xB8 ... 0xBF: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel39;
            }
            goto yy15;
    }
yy53:
    ++YYCURSOR;
yyFillLabel40:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel40;
            }
            goto yy15;
    }
yy54:
    ++YYCURSOR;
yyFillLabel41:
    yych = *YYCURSOR;
    switch (yych) {
        case 0xB0 ... 0xBD:
        case 0xBF: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel41;
            }
            goto yy15;
    }
yy55:
    ++YYCURSOR;
yyFillLabel42:
    yych = *YYCURSOR;
    switch (yych) {
        case 0xA0 ... 0xBF: goto yy53;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel42;
            }
            goto yy15;
    }
yy56:
    ++YYCURSOR;
yyFillLabel43:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy53;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel43;
            }
            goto yy15;
    }
yy57:
    ++YYCURSOR;
yyFillLabel44:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80: goto yy74;
        case 0x81: goto yy75;
        case 0x82 ... 0x85:
        case 0xB0 ... 0xBE: goto yy53;
        case 0x86: goto yy76;
        case 0xBF: goto yy77;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel44;
            }
            goto yy15;
    }
yy58:
    ++YYCURSOR;
yyFillLabel45:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80: goto yy78;
        case 0x81 ... 0xBF: goto yy53;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel45;
            }
            goto yy15;
    }
yy59:
    ++YYCURSOR;
yyFillLabel46:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0x9F: goto yy53;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel46;
            }
            goto yy15;
    }
yy60:
    ++YYCURSOR;
yyFillLabel47:
    yych = *YYCURSOR;
    switch (yych) {
        case 0xA4 ... 0xB6:
        case 0xB8 ... 0xBE: goto yy53;
        case 0xB7: goto yy79;
        case 0xBF: goto yy80;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel47;
            }
            goto yy15;
    }
yy61:
    ++YYCURSOR;
yyFillLabel48:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x90 ... 0xBF: goto yy56;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel48;
            }
            goto yy15;
    }
yy62:
    ++YYCURSOR;
yyFillLabel49:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy56;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel49;
            }
            goto yy15;
    }
yy63:
    ++YYCURSOR;
yyFillLabel50:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xAF: goto yy56;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel50;
            }
            goto yy15;
    }
yy64:
    yyaccept = 5;
    YYMARKER = ++YYCURSOR;
yyFillLabel51:
    yych = *YYCURSOR;
    switch (yych) {
        case '-': goto yy81;
        case 'A' ... 'Z':
        case 'a' ... 'z': goto yy64;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel51;
            }
            it->yyt2 = NULL;
            goto yy17;
    }
yy65:
    ++YYCURSOR;
yyFillLabel52:
    yych = *YYCURSOR;
    switch (yych) {
        case '\t':
        case ' ': goto yy65;
        case '<':
            it->yyt2 = YYCURSOR;
            goto yy82;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel52;
            }
            goto yy15;
    }
yy66:
    ++YYCURSOR;
yyFillLabel53:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy83;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel53;
            }
            goto yy15;
    }
yy67:
    ++YYCURSOR;
yyFillLabel54:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy84;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel54;
            }
            goto yy15;
    }
yy68:
    ++YYCURSOR;
yyFillLabel55:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy85;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel55;
            }
            goto yy15;
    }
yy69:
    ++YYCURSOR;
yyFillLabel56:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy86;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel56;
            }
            goto yy15;
    }
yy70:
    ++YYCURSOR;
yyFillLabel57:
    yych = *YYCURSOR;
    switch (yych) {
        case '-':
        case '0' ... ':':
        case 'A' ... 'Z':
        case '_':
        case 'a' ... 'z': goto yy49;
        case '.': goto yy70;
        case 0xC2: goto yy71;
        case 0xC3: goto yy52;
        case 0xC4 ... 0xCC:
        case 0xCE ... 0xDF: goto yy53;
        case 0xCD: goto yy72;
        case 0xE0: goto yy55;
        case 0xE1:
        case 0xE4 ... 0xEC: goto yy56;
        case 0xE2: goto yy73;
        case 0xE3: goto yy58;
        case 0xED: goto yy59;
        case 0xEF: goto yy60;
        case 0xF0: goto yy61;
        case 0xF1 ... 0xF2: goto yy62;
        case 0xF3: goto yy63;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel57;
            }
            goto yy15;
    }
yy71:
    ++YYCURSOR;
yyFillLabel58:
    yych = *YYCURSOR;
    switch (yych) {
        case 0xB7: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel58;
            }
            goto yy15;
    }
yy72:
    ++YYCURSOR;
yyFillLabel59:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBD:
        case 0xBF: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel59;
            }
            goto yy15;
    }
yy73:
    ++YYCURSOR;
yyFillLabel60:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80: goto yy87;
        case 0x81: goto yy88;
        case 0x82 ... 0x85:
        case 0xB0 ... 0xBE: goto yy53;
        case 0x86: goto yy76;
        case 0xBF: goto yy77;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel60;
            }
            goto yy15;
    }
yy74:
    ++YYCURSOR;
yyFillLabel61:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x8C ... 0x8D: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel61;
            }
            goto yy15;
    }
yy75:
    ++YYCURSOR;
yyFillLabel62:
    yych = *YYCURSOR;
    switch (yych) {
        case 0xB0 ... 0xBF: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel62;
            }
            goto yy15;
    }
yy76:
    ++YYCURSOR;
yyFillLabel63:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0x8F: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel63;
            }
            goto yy15;
    }
yy77:
    ++YYCURSOR;
yyFillLabel64:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xAF: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel64;
            }
            goto yy15;
    }
yy78:
    ++YYCURSOR;
yyFillLabel65:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x81 ... 0xBF: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel65;
            }
            goto yy15;
    }
yy79:
    ++YYCURSOR;
yyFillLabel66:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0x8F:
        case 0xB0 ... 0xBF: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel66;
            }
            goto yy15;
    }
yy80:
    ++YYCURSOR;
yyFillLabel67:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBD: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel67;
            }
            goto yy15;
    }
yy81:
    ++YYCURSOR;
yyFillLabel68:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'Z':
        case 'a' ... 'z': goto yy89;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel68;
            }
            goto yy15;
    }
yy82:
    ++YYCURSOR;
yyFillLabel69:
    yych = *YYCURSOR;
    switch (yych) {
        case '!':
        case '#' ... ';':
        case '=':
        case '?' ... '[':
        case ']':
        case '_':
        case 'a' ... 'z':
        case '~' ... 0x7F: goto yy82;
        case '>': goto yy90;
        case '\\': goto yy91;
        case 0xC2 ... 0xDF: goto yy92;
        case 0xE0: goto yy93;
        case 0xE1 ... 0xEF: goto yy94;
        case 0xF0: goto yy95;
        case 0xF1 ... 0xF3: goto yy96;
        case 0xF4: goto yy97;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel69;
            }
            goto yy15;
    }
yy83:
    ++YYCURSOR;
yyFillLabel70:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy98;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel70;
            }
            goto yy15;
    }
yy84:
    ++YYCURSOR;
yyFillLabel71:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy99;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel71;
            }
            goto yy15;
    }
yy85:
    ++YYCURSOR;
yyFillLabel72:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy100;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel72;
            }
            goto yy15;
    }
yy86:
    ++YYCURSOR;
yyFillLabel73:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy101;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel73;
            }
            goto yy15;
    }
yy87:
    ++YYCURSOR;
yyFillLabel74:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x8C ... 0x8D:
        case 0xBF: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel74;
            }
            goto yy15;
    }
yy88:
    ++YYCURSOR;
yyFillLabel75:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80:
        case 0xB0 ... 0xBF: goto yy49;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel75;
            }
            goto yy15;
    }
yy89:
    yyaccept = 5;
    YYMARKER = ++YYCURSOR;
yyFillLabel76:
    yych = *YYCURSOR;
    switch (yych) {
        case '-': goto yy81;
        case '0' ... '9':
        case 'A' ... 'Z':
        case 'a' ... 'z': goto yy89;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel76;
            }
            it->yyt2 = NULL;
            goto yy17;
    }
yy90:
    ++YYCURSOR;
    it->yyt3 = NULL;
    goto yy17;
yy91:
    ++YYCURSOR;
yyFillLabel77:
    yych = *YYCURSOR;
    switch (yych) {
        case 'U': goto yy102;
        case 'u': goto yy103;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel77;
            }
            goto yy15;
    }
yy92:
    ++YYCURSOR;
yyFillLabel78:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy82;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel78;
            }
            goto yy15;
    }
yy93:
    ++YYCURSOR;
yyFillLabel79:
    yych = *YYCURSOR;
    switch (yych) {
        case 0xA0 ... 0xBF: goto yy92;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel79;
            }
            goto yy15;
    }
yy94:
    ++YYCURSOR;
yyFillLabel80:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy92;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel80;
            }
            goto yy15;
    }
yy95:
    ++YYCURSOR;
yyFillLabel81:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x90 ... 0xBF: goto yy94;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel81;
            }
            goto yy15;
    }
yy96:
    ++YYCURSOR;
yyFillLabel82:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0xBF: goto yy94;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel82;
            }
            goto yy15;
    }
yy97:
    ++YYCURSOR;
yyFillLabel83:
    yych = *YYCURSOR;
    switch (yych) {
        case 0x80 ... 0x8F: goto yy94;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel83;
            }
            goto yy15;
    }
yy98:
    ++YYCURSOR;
yyFillLabel84:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy46;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel84;
            }
            goto yy15;
    }
yy99:
    ++YYCURSOR;
yyFillLabel85:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy13;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel85;
            }
            goto yy15;
    }
yy100:
    ++YYCURSOR;
yyFillLabel86:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy48;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel86;
            }
            goto yy15;
    }
yy101:
    ++YYCURSOR;
yyFillLabel87:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy31;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel87;
            }
            goto yy15;
    }
yy102:
    ++YYCURSOR;
yyFillLabel88:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy104;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel88;
            }
            goto yy15;
    }
yy103:
    ++YYCURSOR;
yyFillLabel89:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy105;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel89;
            }
            goto yy15;
    }
yy104:
    ++YYCURSOR;
yyFillLabel90:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy106;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel90;
            }
            goto yy15;
    }
yy105:
    ++YYCURSOR;
yyFillLabel91:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy107;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel91;
            }
            goto yy15;
    }
yy106:
    ++YYCURSOR;
yyFillLabel92:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy108;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel92;
            }
            goto yy15;
    }
yy107:
    ++YYCURSOR;
yyFillLabel93:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy109;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel93;
            }
            goto yy15;
    }
yy108:
    ++YYCURSOR;
yyFillLabel94:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy103;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel94;
            }
            goto yy15;
    }
yy109:
    ++YYCURSOR;
yyFillLabel95:
    yych = *YYCURSOR;
    switch (yych) {
        case '0' ... '9':
        case 'A' ... 'F':
        case 'a' ... 'f': goto yy82;
        default:
            if (YYLIMIT <= YYCURSOR) {
                if (YYFILL) goto yyFillLabel95;
            }
            goto yy15;
    }
yy110:
#line 40 "nt_def.re.inc"
    {
    log_debug ("End of buffer.");
    return T_EOF;
}
#line 1750 "parser_nt.c"
}
#line 28 "lexer_nt.re"
 
}
 
 
VOLK_rc
nt_parse_term (const char *rep, VOLK_Term **term)
{
    ParseIterator *parse_it = malloc (sizeof (*parse_it));
    NLRCCK (parse_it, VOLK_MEM_ERR);
    parse_init (parse_it, NULL, rep);
 
    int ttype = lex (parse_it, term);
 
    free (parse_it->buf);
    free (parse_it);
 
    switch (ttype) {
        case T_IRIREF:
        case T_LITERAL:
        case T_BNODE:
            return VOLK_OK;
        default:
            return VOLK_PARSE_ERR;
    }
}
 
VOLK_rc
nt_parse_doc (
        FILE *fh, const char *sh, VOLK_Graph *gr)
{
    if (!fh && !sh) {
        log_error ("Neither file handle nor string input provided.");
        return VOLK_VALUE_ERR;
    }
 
    ParseIterator *parse_it = malloc (sizeof (*parse_it));
    NLRCCK (parse_it, VOLK_MEM_ERR);
    parse_init (parse_it, fh, sh);
 
#ifdef VOLK_CODEC_DEBUG
    NTParseTrace (stderr, "NT Parser > ");
#endif
 
    void *parser = NTParseAlloc (malloc);
 
    VOLK_rc rc;
 
    VOLK_GraphIterator *it = VOLK_graph_add_init (gr);
    if (UNLIKELY (!it)) {
        VOLK_graph_free (gr);
        return VOLK_MEM_ERR;
    }
 
    VOLK_Term *term = NULL;
 
    for (;;) {
        int ttype = lex (parse_it, &term);
 
        if (ttype == -1) {
            log_error (
                "Lexical error near token `%s[…]` at line %u, character %ld.",
                parse_it->tok, parse_it->line, parse_it->cur - parse_it->bol
            );
            rc = VOLK_PARSE_ERR;
 
            goto finally;
        }
 
        NTParse (parser, ttype, term, it);
 
        if (ttype == T_EOF) break;
    };
 
    log_info ("Parsed %zu triples.", parse_it->ct);
    log_debug ("Graph size: %lu", VOLK_graph_size (gr));
 
    rc = parse_it->ct > 0 ? VOLK_OK : VOLK_NORESULT;
 
finally: ;
    NTParse (parser, 0, NULL, it);
    NTParseFree (parser, free);
 
    free (parse_it->buf);
    free (parse_it);
 
    VOLK_graph_iter_free (it);
    VOLK_term_free (term);
 
    return rc;
}