char read/print improvement
adding char.upcase and char.downcase
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@ -475,11 +475,8 @@ static void cvalue_printdata(ios_t *f, void *data, size_t len, value_t type,
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if (!princ) outsn("#\\", f, 2);
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outs(seq, f);
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}
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else if (weak) {
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HPOS+=ios_printf(f, "%d", (int)wc);
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}
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else {
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HPOS+=ios_printf(f, "#%s(%d)", symbol_name(type), (int)wc);
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HPOS+=ios_printf(f, "#\\x%04x", (int)wc);
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}
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}
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else if (type == int64sym
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@ -206,9 +206,10 @@ static u_int32_t peek()
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uint32_t cval;
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if (ios_getutf8(F, &cval) == IOS_EOF)
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lerror(ParseError, "read: end of input in character constant");
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if (cval == (uint32_t)'u' || cval == (uint32_t)'U') {
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if (cval == (uint32_t)'u' || cval == (uint32_t)'U' ||
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cval == (uint32_t)'x') {
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read_token('u', 0);
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if (buf[1] != '\0') { // not a solitary 'u' or 'U'
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if (buf[1] != '\0') { // not a solitary 'u','U','x'
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if (!read_numtok(&buf[1], &tokval, 16))
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lerror(ParseError,
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"read: invalid hex character constant");
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@ -8,6 +8,7 @@
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#include <stdarg.h>
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#include <assert.h>
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#include <ctype.h>
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#include <wctype.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <errno.h>
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@ -193,6 +194,23 @@ value_t fl_string_char(value_t *args, u_int32_t nargs)
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return mk_wchar(u8_nextchar(s, &i));
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}
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value_t fl_char_upcase(value_t *args, u_int32_t nargs)
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{
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argcount("char.upcase", nargs, 1);
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cprim_t *cp = (cprim_t*)ptr(args[0]);
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if (!iscprim(args[0]) || cp_class(cp) != wchartype)
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type_error("char.upcase", "wchar", args[0]);
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return mk_wchar(towupper(*(int32_t*)cp_data(cp)));
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}
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value_t fl_char_downcase(value_t *args, u_int32_t nargs)
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{
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argcount("char.downcase", nargs, 1);
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cprim_t *cp = (cprim_t*)ptr(args[0]);
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if (!iscprim(args[0]) || cp_class(cp) != wchartype)
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type_error("char.downcase", "wchar", args[0]);
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return mk_wchar(towlower(*(int32_t*)cp_data(cp)));
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}
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static value_t mem_find_byte(char *s, char c, size_t start, size_t len)
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{
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char *p = memchr(s+start, c, len-start);
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@ -351,6 +369,9 @@ static builtinspec_t stringfunc_info[] = {
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{ "string.encode", fl_string_encode },
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{ "string.decode", fl_string_decode },
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{ "char.upcase", fl_char_upcase },
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{ "char.downcase", fl_char_downcase },
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{ "number->string", fl_numbertostring },
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{ "string->number", fl_stringtonumber },
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