diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/n3.c | 89 |
1 files changed, 47 insertions, 42 deletions
@@ -312,11 +312,14 @@ eat_delim(SerdReader* reader, const char delim) // STRING_LITERAL_LONG_QUOTE and STRING_LITERAL_LONG_SINGLE_QUOTE // Initial triple quotes are already eaten by caller -static Ref -read_STRING_LITERAL_LONG(SerdReader* reader, SerdNodeFlags* flags, uint8_t q) +static SerdStatus +read_STRING_LITERAL_LONG(SerdReader* reader, + Ref ref, + SerdNodeFlags* flags, + uint8_t q) { - Ref ref = push_node(reader, SERD_LITERAL, "", 0); - SerdStatus st = SERD_SUCCESS; + SerdStatus st = SERD_SUCCESS; + while (!reader->status && !(st && reader->strict)) { const int c = peek_byte(reader); if (c == '\\') { @@ -324,9 +327,8 @@ read_STRING_LITERAL_LONG(SerdReader* reader, SerdNodeFlags* flags, uint8_t q) uint32_t code = 0; if ((st = read_ECHAR(reader, ref, flags)) && (st = read_UCHAR(reader, ref, &code))) { - r_err(reader, st, - "invalid escape `\\%c'\n", peek_byte(reader)); - return pop_node(reader, ref); + return r_err(reader, st, + "invalid escape `\\%c'\n", peek_byte(reader)); } } else if (c == q) { eat_byte_safe(reader, q); @@ -338,89 +340,90 @@ read_STRING_LITERAL_LONG(SerdReader* reader, SerdNodeFlags* flags, uint8_t q) } *flags |= SERD_HAS_QUOTE; push_byte(reader, ref, c); - read_character(reader, ref, flags, (uint8_t)q2); + st = read_character(reader, ref, flags, (uint8_t)q2); } else if (c == EOF) { - r_err(reader, SERD_ERR_BAD_SYNTAX, "end of file in long string\n"); - return pop_node(reader, ref); + return r_err(reader, SERD_ERR_BAD_SYNTAX, + "end of file in long string\n"); } else { st = read_character( reader, ref, flags, (uint8_t)eat_byte_safe(reader, c)); } } - return ref; + + return (st && reader->strict) ? st : SERD_SUCCESS; } // STRING_LITERAL_QUOTE and STRING_LITERAL_SINGLE_QUOTE // Initial quote is already eaten by caller -static Ref -read_STRING_LITERAL(SerdReader* reader, SerdNodeFlags* flags, uint8_t q) +static SerdStatus +read_STRING_LITERAL(SerdReader* reader, + Ref ref, + SerdNodeFlags* flags, + uint8_t q) { - Ref ref = push_node(reader, SERD_LITERAL, "", 0); - SerdStatus st = SERD_SUCCESS; + SerdStatus st = SERD_SUCCESS; + while (!reader->status && !(st && reader->strict)) { const int c = peek_byte(reader); uint32_t code = 0; switch (c) { case EOF: - r_err(reader, SERD_ERR_BAD_SYNTAX, "end of file in short string\n"); - return pop_node(reader, ref); + return r_err(reader, SERD_ERR_BAD_SYNTAX, + "end of file in short string\n"); case '\n': case '\r': - r_err(reader, SERD_ERR_BAD_SYNTAX, "line end in short string\n"); - return pop_node(reader, ref); + return r_err(reader, SERD_ERR_BAD_SYNTAX, + "line end in short string\n"); case '\\': eat_byte_safe(reader, c); if ((st = read_ECHAR(reader, ref, flags)) && (st = read_UCHAR(reader, ref, &code))) { - r_err(reader, st, - "invalid escape `\\%c'\n", peek_byte(reader)); - return pop_node(reader, ref); + return r_err(reader, st, + "invalid escape `\\%c'\n", peek_byte(reader)); } break; default: if (c == q) { eat_byte_check(reader, q); - return ref; + return SERD_SUCCESS; } else { st = read_character( reader, ref, flags, (uint8_t)eat_byte_safe(reader, c)); } } } - eat_byte_check(reader, q); - return ref; + + return st ? st + : eat_byte_check(reader, q) ? SERD_SUCCESS : SERD_ERR_BAD_SYNTAX; } -static Ref -read_String(SerdReader* reader, SerdNodeFlags* flags) +static SerdStatus +read_String(SerdReader* reader, Ref node, SerdNodeFlags* flags) { const int q1 = peek_byte(reader); eat_byte_safe(reader, q1); const int q2 = peek_byte(reader); if (q2 == EOF) { - r_err(reader, SERD_ERR_BAD_SYNTAX, "unexpected end of file\n"); - return 0; + return r_err(reader, SERD_ERR_BAD_SYNTAX, "unexpected end of file\n"); } else if (q2 != q1) { // Short string (not triple quoted) - return read_STRING_LITERAL(reader, flags, (uint8_t)q1); + return read_STRING_LITERAL(reader, node, flags, (uint8_t)q1); } eat_byte_safe(reader, q2); const int q3 = peek_byte(reader); if (q3 == EOF) { - r_err(reader, SERD_ERR_BAD_SYNTAX, "unexpected end of file\n"); - return 0; + return r_err(reader, SERD_ERR_BAD_SYNTAX, "unexpected end of file\n"); } else if (q3 != q1) { // Empty short string ("" or '') - return push_node(reader, SERD_LITERAL, "", 0); + return SERD_SUCCESS; } if (!fancy_syntax(reader)) { - r_err(reader, SERD_ERR_BAD_SYNTAX, - "syntax does not support long literals\n"); - return 0; + return r_err(reader, SERD_ERR_BAD_SYNTAX, + "syntax does not support long literals\n"); } eat_byte_safe(reader, q3); - return read_STRING_LITERAL_LONG(reader, flags, (uint8_t)q1); + return read_STRING_LITERAL_LONG(reader, node, flags, (uint8_t)q1); } static inline bool @@ -845,9 +848,12 @@ static bool read_literal(SerdReader* reader, Ref* dest, Ref* datatype, Ref* lang, SerdNodeFlags* flags, bool* ate_dot) { - Ref str = read_String(reader, flags); - if (!str) { - return false; + *dest = push_node(reader, SERD_LITERAL, "", 0); + + SerdStatus st = read_String(reader, *dest, flags); + if (st) { + *dest = pop_node(reader, *dest); + return st; } switch (peek_byte(reader)) { @@ -861,12 +867,11 @@ read_literal(SerdReader* reader, Ref* dest, TRY_THROW(read_iri(reader, datatype, ate_dot)); break; } - *dest = str; return true; except: *datatype = pop_node(reader, *datatype); *lang = pop_node(reader, *lang); - pop_node(reader, str); + *dest = pop_node(reader, *dest); r_err(reader, SERD_ERR_BAD_SYNTAX, "bad literal syntax\n"); return false; } |