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74d459fd52
I, Luke T. Shumaker, am the sole author of the added code.
I did not reference CVTUTF when writing it. I did reference the
Unicode standard (15.0.0), the Wikipedia article on UTF-8, and the
Wikipedia article on UTF-16. When I saw some tests fail, I did
reference the old deleted code (but a JSON-specific part, inherently
not as based on CVTUTF) to determine that script_safe should also
escape U+2028 and U+2029.
I targeted simplicity and clarity when writing the code--it can likely
be optimized. In my mind, the obvious next optimization is to have it
combine contiguous non-escaped characters into just one call to
fbuffer_append(), instead of calling fbuffer_append() for each
character.
Regarding the use of the "modern" types `uint32_t`, `uint16_t`, and
`bool`:
- ruby.h is guaranteed to give us uint32_t and uint16_t.
- Since Ruby 3.0.0, ruby.h is guaranteed to give us bool... but we
support down to Ruby 2.3. But, ruby.h is guaranteed to give us
HAVE_STDBOOL_H for the C99 stdbool.h; so use that to include
stdbool.h if we can, and if not then fall back to a copy of the
same bool definition that Ruby 3.0.5 uses with C89.
c96351f874
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
#ifndef _PARSER_H_
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#define _PARSER_H_
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#include "ruby.h"
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#ifndef HAVE_RUBY_RE_H
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#include "re.h"
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#endif
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#ifdef HAVE_RUBY_ST_H
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#include "ruby/st.h"
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#else
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#include "st.h"
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#endif
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#ifndef MAYBE_UNUSED
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# define MAYBE_UNUSED(x) x
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#endif
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#define option_given_p(opts, key) RTEST(rb_funcall(opts, i_key_p, 1, key))
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typedef struct JSON_ParserStruct {
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VALUE Vsource;
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char *source;
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long len;
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char *memo;
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VALUE create_id;
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int max_nesting;
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int allow_nan;
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int parsing_name;
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int symbolize_names;
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int freeze;
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VALUE object_class;
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VALUE array_class;
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VALUE decimal_class;
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int create_additions;
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VALUE match_string;
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FBuffer *fbuffer;
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} JSON_Parser;
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#define GET_PARSER \
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GET_PARSER_INIT; \
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if (!json->Vsource) rb_raise(rb_eTypeError, "uninitialized instance")
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#define GET_PARSER_INIT \
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JSON_Parser *json; \
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TypedData_Get_Struct(self, JSON_Parser, &JSON_Parser_type, json)
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#define MinusInfinity "-Infinity"
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#define EVIL 0x666
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static uint32_t unescape_unicode(const unsigned char *p);
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static int convert_UTF32_to_UTF8(char *buf, uint32_t ch);
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static char *JSON_parse_object(JSON_Parser *json, char *p, char *pe, VALUE *result, int current_nesting);
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static char *JSON_parse_value(JSON_Parser *json, char *p, char *pe, VALUE *result, int current_nesting);
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static char *JSON_parse_integer(JSON_Parser *json, char *p, char *pe, VALUE *result);
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static char *JSON_parse_float(JSON_Parser *json, char *p, char *pe, VALUE *result);
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static char *JSON_parse_array(JSON_Parser *json, char *p, char *pe, VALUE *result, int current_nesting);
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static VALUE json_string_unescape(char *string, char *stringEnd, int intern, int symbolize);
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static char *JSON_parse_string(JSON_Parser *json, char *p, char *pe, VALUE *result);
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static VALUE convert_encoding(VALUE source);
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static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self);
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static VALUE cParser_parse(VALUE self);
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static void JSON_mark(void *json);
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static void JSON_free(void *json);
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static VALUE cJSON_parser_s_allocate(VALUE klass);
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static VALUE cParser_source(VALUE self);
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#ifndef ZALLOC
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#define ZALLOC(type) ((type *)ruby_zalloc(sizeof(type)))
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static inline void *ruby_zalloc(size_t n)
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{
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void *p = ruby_xmalloc(n);
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memset(p, 0, n);
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return p;
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}
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#endif
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static const rb_data_type_t JSON_Parser_type;
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#endif
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