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35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/*
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* Helpers for filtering JSON results while generating.
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*/
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#ifndef LIGHTNING_COMMON_JSON_FILTER_H
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#define LIGHTNING_COMMON_JSON_FILTER_H
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#include "config.h"
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#include <ccan/tal/tal.h>
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#include <stdbool.h>
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struct json_filter;
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/* Print this? */
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bool json_filter_ok(const struct json_filter *filter, const char *member);
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/* Returns true if we should print this new obj/array */
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bool json_filter_down(struct json_filter **filter, const char *member);
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/* Returns true if we were printing (i.e. close object/arr) */
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bool json_filter_up(struct json_filter **filter);
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/* Is filter finished (i.e. balanced!) */
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bool json_filter_finished(const struct json_filter *filter);
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/* Has filter been misused? If so, returns explanatory string, otherwise NULL */
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const char *json_filter_misused(const tal_t *ctx, const struct json_filter *f);
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/* Filter allocation */
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struct json_filter *json_filter_new(const tal_t *ctx);
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struct json_filter *json_filter_subobj(struct json_filter *filter,
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const char *fieldname,
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size_t fieldnamelen);
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struct json_filter *json_filter_subarr(struct json_filter *filter);
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#endif /* LIGHTNING_COMMON_JSON_FILTER_H */
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