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We have two JSON writers written in C: qobject/qjson.c provides qobject_to_json(), and migration/qjson.c provides a more low level imperative interface. They don't share code. The latter tacitly limits numbers to int64_t, and strings contents to characters that don't need escaping. Factor out qobject_to_json()'s JSON writer as qobject/json-writer.c. Straightforward, except for numbers: since the writer is to be independent of QObject, it can't use qnum_to_string(). Open-code it instead. This is actually an improvement of sorts, because it liberates qnum_to_string() from JSON's needs: its JSON-related FIXMEs move to the JSON writer, where they belong. The next commit will replace migration/qjson.c. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20201211171152.146877-16-armbru@redhat.com>
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/*
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* JSON Writer
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*
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* Copyright (c) 2020 Red Hat Inc.
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*
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* Authors:
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* Markus Armbruster <armbru@redhat.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
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* See the COPYING.LIB file in the top-level directory.
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*
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*/
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#ifndef JSON_WRITER_H
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#define JSON_WRITER_H
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typedef struct JSONWriter JSONWriter;
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JSONWriter *json_writer_new(bool pretty);
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const char *json_writer_get(JSONWriter *);
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GString *json_writer_get_and_free(JSONWriter *);
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void json_writer_free(JSONWriter *);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(JSONWriter, json_writer_free)
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void json_writer_start_object(JSONWriter *, const char *name);
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void json_writer_end_object(JSONWriter *);
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void json_writer_start_array(JSONWriter *, const char *name);
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void json_writer_end_array(JSONWriter *);
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void json_writer_bool(JSONWriter *, const char *name, bool val);
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void json_writer_null(JSONWriter *, const char *name);
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void json_writer_int64(JSONWriter *, const char *name, int64_t val);
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void json_writer_uint64(JSONWriter *, const char *name, uint64_t val);
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void json_writer_double(JSONWriter *, const char *name, double val);
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void json_writer_str(JSONWriter *, const char *name, const char *str);
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#endif
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