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sgml: support appending SGML to supplied string

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Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2023-06-06 15:33:31 +02:00
parent 1fb78a78f2
commit 2c8fad779c
1 changed files with 58 additions and 18 deletions
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76
include/stdex/sgml.hpp
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@ -79,18 +79,20 @@ namespace stdex
// constexpr int sgml_kolos = sgml_amp | sgml_quot | sgml_dollar | sgml_percnt | sgml_lt_gt | sgml_bsol/* | sgml_commat | sgml_num*/ | sgml_lpar_rpar | sgml_lcub_rcub | sgml_lsqb_rsqb; // constexpr int sgml_kolos = sgml_amp | sgml_quot | sgml_dollar | sgml_percnt | sgml_lt_gt | sgml_bsol/* | sgml_commat | sgml_num*/ | sgml_lpar_rpar | sgml_lcub_rcub | sgml_lsqb_rsqb;
/// ///
/// Convert SGML string to Unicode string (UTF-16 on Windows) /// Convert SGML string to Unicode (UTF-16 on Windows) and append to string
/// ///
/// \param[in] src SGML string /// \param[inout] dst String to append Unicode to
/// \param[in] count_src SGML string character count limit /// \param[in] src SGML string
/// \param[in] skip Bitwise flag of stdex::sgml_* constants that list SGML entities to skip converting /// \param[in] count_src SGML string character count limit
/// \param[in] offset Logical starting offset of source and destination strings. Unused when map parameter is nullptr. /// \param[in] skip Bitwise flag of stdex::sgml_* constants that list SGML entities to skip converting
/// \param[out] map The vector to append index mapping between source and destination string to. /// \param[in] offset Logical starting offset of source and destination strings. Unused when map parameter is nullptr.
/// \param[out] map The vector to append index mapping between source and destination string to.
/// ///
/// \return Unicode string /// \return Unicode string
/// ///
template <class T> template <class T>
inline std::wstring sgml2str( inline void sgml2str(
_Inout_ std::wstring &dst,
_In_reads_or_z_(count_src) const T* src, _In_ size_t count_src, _In_reads_or_z_(count_src) const T* src, _In_ size_t count_src,
_In_ int skip = 0, _In_ int skip = 0,
_In_ const mapping<size_t>& offset = mapping<size_t>(0, 0), _In_ const mapping<size_t>& offset = mapping<size_t>(0, 0),
@ -113,8 +115,7 @@ namespace stdex
skip_lsqb_rsqb = (skip & sgml_lsqb_rsqb) == 0; skip_lsqb_rsqb = (skip & sgml_lsqb_rsqb) == 0;
count_src = strnlen(src, count_src); count_src = strnlen(src, count_src);
std::wstring dst; dst.reserve(dst.size() + count_src);
dst.reserve(count_src);
for (size_t i = 0; i < count_src;) { for (size_t i = 0; i < count_src;) {
if (src[i] == '&') { if (src[i] == '&') {
auto end = sgmlend(src + i + 1, count_src - i - 1); auto end = sgmlend(src + i + 1, count_src - i - 1);
@ -169,6 +170,28 @@ namespace stdex
} }
dst.append(1, src[i++]); dst.append(1, src[i++]);
} }
}
///
/// Convert SGML string to Unicode string (UTF-16 on Windows)
///
/// \param[in] src SGML string
/// \param[in] count_src SGML string character count limit
/// \param[in] skip Bitwise flag of stdex::sgml_* constants that list SGML entities to skip converting
/// \param[in] offset Logical starting offset of source and destination strings. Unused when map parameter is nullptr.
/// \param[out] map The vector to append index mapping between source and destination string to.
///
/// \return Unicode string
///
template <class T>
inline std::wstring sgml2str(
_In_reads_or_z_(count_src) const T* src, _In_ size_t count_src,
_In_ int skip = 0,
_In_ const mapping<size_t>& offset = mapping<size_t>(0, 0),
_Inout_opt_ mapping_vector<size_t>* map = nullptr)
{
std::wstring dst;
sgml2str(dst, src, count_src, skip, offset, map);
return dst; return dst;
} }
@ -202,15 +225,15 @@ namespace stdex
/// \endcond /// \endcond
/// ///
/// Convert Unicode string (UTF-16 on Windows) to SGML string /// Convert Unicode string (UTF-16 on Windows) to SGML and append to string
/// ///
/// \param[in] src Unicode string /// \param[inout] dst String to append SGML to
/// \param[in] count_src Unicode string character count limit /// \param[in] src Unicode string
/// \param[in] what Bitwise flag of stdex::sgml_* constants that force extra characters otherwise not converted to SGML /// \param[in] count_src Unicode string character count limit
/// \param[in] what Bitwise flag of stdex::sgml_* constants that force extra characters otherwise not converted to SGML
/// ///
/// \return SGML string inline void str2sgml(
/// _Inout_ std::string &dst,
inline std::string str2sgml(
_In_reads_or_z_(count_src) const wchar_t* src, _In_reads_or_z_(count_src) const wchar_t* src,
_In_ size_t count_src, _In_ size_t count_src,
_In_ size_t what = 0) _In_ size_t what = 0)
@ -232,8 +255,7 @@ namespace stdex
do_lsqb_rsqb = (what & sgml_lsqb_rsqb) == 0; do_lsqb_rsqb = (what & sgml_lsqb_rsqb) == 0;
count_src = wcsnlen(src, count_src); count_src = wcsnlen(src, count_src);
std::string dst; dst.reserve(dst.size() + count_src);
dst.reserve(count_src);
for (size_t i = 0; i < count_src;) { for (size_t i = 0; i < count_src;) {
size_t n = glyphlen(src + i, count_src - i); size_t n = glyphlen(src + i, count_src - i);
if (n == 1 && if (n == 1 &&
@ -303,6 +325,24 @@ namespace stdex
} }
} }
} }
}
///
/// Convert Unicode string (UTF-16 on Windows) to SGML string
///
/// \param[in] src Unicode string
/// \param[in] count_src Unicode string character count limit
/// \param[in] what Bitwise flag of stdex::sgml_* constants that force extra characters otherwise not converted to SGML
///
/// \return SGML string
///
inline std::string str2sgml(
_In_reads_or_z_(count_src) const wchar_t* src,
_In_ size_t count_src,
_In_ size_t what = 0)
{
std::string dst;
str2sgml(dst, src, count_src, what);
return dst; return dst;
} }
} }