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[examples] enum member lists

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This commit is contained in:
Allen Webster
2021-09-19 17:26:51 -07:00
parent f0ca7effc5
commit 426de7ca2e
4 changed files with 204 additions and 22 deletions
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source/md.c
+104 -17
View File
@@ -1500,21 +1500,99 @@ MD_S8ChopWhitespace(MD_String8 string)
//~ Numeric Strings
MD_GLOBAL MD_u8 md_char_to_value[] = {
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
0x08,0x09,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
};
MD_GLOBAL MD_u8 md_char_is_integer[] = {
0,0,0,0,0,0,1,1,
1,0,0,0,1,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
};
MD_FUNCTION MD_b32
MD_StringIsU64(MD_String8 string, MD_u32 radix)
{
MD_b32 result = 0;
if (string.size > 0)
{
result = 1;
for (MD_u8 *ptr = string.str, *opl = string.str + string.size;
ptr < opl;
ptr += 1)
{
MD_u8 c = *ptr;
if (!md_char_is_integer[c >> 3])
{
result = 0;
break;
}
if (md_char_to_value[(c - 0x30)&0x1F] >= radix)
{
result = 0;
break;
}
}
}
return(result);
}
MD_FUNCTION MD_b32
MD_StringIsCStyleInt(MD_String8 string)
{
MD_u8 *ptr = string.str;
MD_u8 *opl = string.str + string.size;
// consume sign
for (;ptr < opl && (*ptr == '+' || *ptr == '-'); ptr += 1);
// radix from prefix
MD_u64 radix = 10;
if (ptr < opl)
{
MD_u8 c0 = *ptr;
if (c0 == '0')
{
ptr += 1;
radix = 8;
if (ptr < opl)
{
MD_u8 c1 = *ptr;
if (c1 == 'x')
{
ptr += 1;
radix = 0x10;
}
else if (c1 == 'b')
{
ptr += 1;
radix = 2;
}
}
}
}
// check integer "digits"
MD_String8 digits_substr = MD_S8Range(ptr, opl);
MD_b32 result = MD_StringIsU64(digits_substr, radix);
return(result);
}
MD_FUNCTION MD_u64
MD_U64FromString(MD_String8 string, MD_u32 radix)
{
MD_Assert(2 <= radix && radix <= 16);
static MD_u8 char_to_value[] = {
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
0x08,0x09,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
};
MD_u64 value = 0;
for (MD_u64 i = 0; i < string.size; i += 1){
for (MD_u64 i = 0; i < string.size; i += 1)
{
value *= radix;
MD_u8 c = string.str[i];
value += char_to_value[(c - 0x30)&0x1F];
value += md_char_to_value[(c - 0x30)&0x1F];
}
return(value);
}
@@ -1526,31 +1604,39 @@ MD_CStyleIntFromString(MD_String8 string)
// consume sign
MD_i64 sign = +1;
if (p < string.size){
if (p < string.size)
{
MD_u8 c = string.str[p];
if (c == '-'){
if (c == '-')
{
sign = -1;
p += 1;
}
else if (c == '+'){
else if (c == '+')
{
p += 1;
}
}
// radix from prefix
MD_u64 radix = 10;
if (p < string.size){
if (p < string.size)
{
MD_u8 c0 = string.str[p];
if (c0 == '0'){
if (c0 == '0')
{
p += 1;
radix = 8;
if (p < string.size){
if (p < string.size)
{
MD_u8 c1 = string.str[p];
if (c1 == 'x'){
if (c1 == 'x')
{
p += 1;
radix = 16;
}
else if (c1 == 'b'){
else if (c1 == 'b')
{
p += 1;
radix = 2;
}
@@ -1572,7 +1658,8 @@ MD_F64FromString(MD_String8 string)
{
char str[64];
MD_u64 str_size = string.size;
if (str_size > sizeof(str) - 1){
if (str_size > sizeof(str) - 1)
{
str_size = sizeof(str) - 1;
}
MD_MemoryCopy(str, string.str, str_size);
source/md.h
+3
View File
@@ -1005,6 +1005,9 @@ MD_FUNCTION MD_String8 MD_S8ChopWhitespace(MD_String8 string);
//~ Numeric Strings
MD_FUNCTION MD_b32 MD_StringIsU64(MD_String8 string, MD_u32 radix);
MD_FUNCTION MD_b32 MD_StringIsCStyleInt(MD_String8 string);
MD_FUNCTION MD_u64 MD_U64FromString(MD_String8 string, MD_u32 radix);
MD_FUNCTION MD_i64 MD_CStyleIntFromString(MD_String8 string);
MD_FUNCTION MD_f64 MD_F64FromString(MD_String8 string);