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/* workspace utilities */
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/* workspace utilities */
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int _prepare_attach2();  /* prepare workspace before attaching a sqlite db */
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int _prepare_attach2();  /* prepare workspace before attaching a sqlite db */
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/* sqlite vector utilities */
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SEXP _create_svector_sexp(const char *iname, const char *tblname, const char *varname, const char *type);
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/* misc utilities */
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/* misc utilities */
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char *_r2iname(char *internal_name, char *filename);
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char *_r2iname(char *internal_name, char *filename);
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char *_fixname(char *rname);
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char *_fixname(char *rname);
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char *_str_tolower(char *out, const char *ref);
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char *_str_tolower(char *out, const char *ref);
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/* R object accessors shortcuts */
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/* R object accessors shortcuts */
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#define CHAR_ELT(str, i) CHAR(STRING_ELT(str,i))
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#define CHAR_ELT(str, i) CHAR(STRING_ELT(str,i))
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/* SDF object accessors shortcuts */
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/* SDF object accessors shortcuts */
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#define SDF_INAME(sdf) CHAR(STRING_ELT(_getListElement(sdf, "iname"),0))
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#define SDF_INAME(sdf) CHAR(STRING_ELT(_getListElement(sdf, "iname"),0))
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#define SVEC_TBLNAME(sdf) CHAR(STRING_ELT(_getListElement(sdf, "tblname"),0))
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#define SVEC_VARNAME(sdf) CHAR(STRING_ELT(_getListElement(sdf, "varname"),0))
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#define SVEC_VARNAME(sdf) CHAR(STRING_ELT(_getListElement(sdf, "varname"),0))
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/* possible var types when stored in sqlite as integer */
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/* possible var types when stored in sqlite as integer */
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#define VAR_INTEGER 0
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#define VAR_INTEGER 0
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#define VAR_FACTOR  1
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#define VAR_FACTOR  1