IS_BASECHAR       199 third_party/libxml/src/include/libxml/parserInternals.h #define IS_LETTER(c) (IS_BASECHAR(c) || IS_IDEOGRAPHIC(c))
IS_BASECHAR       223 third_party/libxml/src/parserInternals.c     return(IS_BASECHAR(c) || IS_IDEOGRAPHIC(c));