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/// @file
/// @brief XML escaping functionality
#pragma once
#include <util/api.h>
#ifdef __cplusplus
extern "C" {
#endif
/// options to tweak the behavior of XML escaping
typedef struct {
/// assume no embedded escapes, and escape "\n" and "\r"
unsigned raw : 1;
/// escape '-'
unsigned dash : 1;
/// escape consecutive ' '
unsigned nbsp : 1;
/// anticipate non-ASCII characters that need to be encoded
unsigned utf8 : 1;
} xml_flags_t;
/// XML-escape a string
///
/// @param s Source string to process.
/// @param flags Options of how to configure escaping.
/// @param cb An `fputs` analogue for emitting escaped output.
/// @param state Caller-defined data to pass to `cb`.
/// @return The first negative value `cb` returns or the last return value of
/// `cb`.
UTIL_API int gv_xml_escape(const char *s, xml_flags_t flags,
int (*cb)(void *state, const char *s), void *state);
#ifdef __cplusplus
}
#endif
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