static Lisp_Object casify_object (enum case_action flag, Lisp_Object string_or_char, Lisp_Object buffer) { struct buffer *buf = decode_buffer (buffer, 0); retry: if (CHAR_OR_CHAR_INTP (string_or_char)) { Ichar c; CHECK_CHAR_COERCE_INT (string_or_char); c = XCHAR (string_or_char); if (flag == CASE_DOWN) { c = DOWNCASE (buf, c); } else if (flag == CASE_UP) { c = UPCASE (buf, c); } else { c = CANONCASE (buf, c); } return make_char (c); } if (STRINGP (string_or_char)) { Lisp_Object syntax_table = buf->mirror_syntax_table; Ibyte *storage = alloca_ibytes (XSTRING_LENGTH (string_or_char) * MAX_ICHAR_LEN); Ibyte *newp = storage; Ibyte *oldp = XSTRING_DATA (string_or_char); Ibyte *endp = oldp + XSTRING_LENGTH (string_or_char); int wordp = 0, wordp_prev; while (oldp < endp) { Ichar c = itext_ichar (oldp); switch (flag) { case CASE_UP: c = UPCASE (buf, c); break; case CASE_DOWN: c = DOWNCASE (buf, c); break; case CASE_CANONICALIZE: c = CANONCASE (buf, c); break; case CASE_CAPITALIZE: case CASE_CAPITALIZE_UP: wordp_prev = wordp; wordp = WORD_SYNTAX_P (syntax_table, c); if (!wordp) break; if (wordp_prev) { if (flag == CASE_CAPITALIZE) c = DOWNCASE (buf, c); } else c = UPCASE (buf, c); break; } newp += set_itext_ichar (newp, c); INC_IBYTEPTR (oldp); } return make_string (storage, newp - storage); } string_or_char = wrong_type_argument (Qchar_or_string_p, string_or_char); goto retry; }
static Lisp_Object casify_object(enum case_action flag, Lisp_Object string_or_char, Lisp_Object buffer) { struct buffer *buf = decode_buffer(buffer, 0); retry: if (CHAR_OR_CHAR_INTP(string_or_char)) { Emchar c; CHECK_CHAR_COERCE_INT(string_or_char); c = XCHAR(string_or_char); c = (flag == CASE_DOWN) ? DOWNCASE(buf, c) : UPCASE(buf, c); return make_char(c); } if (STRINGP(string_or_char)) { Lisp_Char_Table *syntax_table = XCHAR_TABLE(buf->mirror_syntax_table); Bufbyte *storage = alloca_array(Bufbyte, XSTRING_LENGTH(string_or_char) * MAX_EMCHAR_LEN); Bufbyte *newp = storage; Bufbyte *oldp = XSTRING_DATA(string_or_char); int wordp = 0, wordp_prev; while (*oldp) { Emchar c = charptr_emchar(oldp); switch (flag) { case CASE_UP: c = UPCASE(buf, c); break; case CASE_DOWN: c = DOWNCASE(buf, c); break; case CASE_CAPITALIZE: case CASE_CAPITALIZE_UP: wordp_prev = wordp; wordp = WORD_SYNTAX_P(syntax_table, c); if (!wordp) break; if (wordp_prev) { if (flag == CASE_CAPITALIZE) c = DOWNCASE(buf, c); } else c = UPCASE(buf, c); break; /* can't happen */ default: /* abort()? */ break; } newp += set_charptr_emchar(newp, c); INC_CHARPTR(oldp); } return make_string(storage, newp - storage); } string_or_char = wrong_type_argument(Qchar_or_string_p, string_or_char); goto retry; }