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pg_clean_ascii(): escape bytes rather than lose them

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Rather than replace each unprintable byte with a '?' character, replace
it with a hex escape instead. The API now allocates a copy rather than
modifying the input in place.

Author: Jacob Champion <jchampion@timescale.com>
Discussion: https://www.postgresql.org/message-id/CAAWbhmgsvHrH9wLU2kYc3pOi1KSenHSLAHBbCVmmddW6-mc_=w@mail.gmail.com
This commit is contained in:
Peter Eisentraut
2022-09-13 16:10:44 +02:00
parent da5d4ea5aa
commit 45b1a67a0f
4 changed files with 67 additions and 19 deletions
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2
src/include/common/string.h
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@ -24,7 +24,7 @@ typedef struct PromptInterruptContext
extern bool pg_str_endswith(const char *str, const char *end);
extern int strtoint(const char *pg_restrict str, char **pg_restrict endptr,
int base);
extern void pg_clean_ascii(char *str);
extern char *pg_clean_ascii(const char *str, int alloc_flags);
extern int pg_strip_crlf(char *str);
extern bool pg_is_ascii(const char *str);