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Added scanner. (#410)

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This commit is contained in:
Branimir Karadžić
2026-07-25 12:23:58 -07:00
committed by GitHub
parent cd6720ce9a
commit 9916e720fc
21 changed files with 2157 additions and 1899 deletions
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93
src/string.cpp
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@@ -10,65 +10,6 @@
namespace bx
{
inline bool isInRange(char _ch, char _from, char _to)
{
return unsigned(_ch - _from) <= unsigned(_to-_from);
}
bool isSpace(char _ch)
{
return ' ' == _ch // Space.
|| '\t' == _ch // Horizontal tab.
|| '\n' == _ch // Line feed / new line.
|| '\r' == _ch // Carriage return.
|| '\v' == _ch // Vertical tab.
|| '\f' == _ch // Form feed / new page.
;
}
bool isUpper(char _ch)
{
return isInRange(_ch, 'A', 'Z');
}
bool isLower(char _ch)
{
return isInRange(_ch, 'a', 'z');
}
bool isAlpha(char _ch)
{
return isLower(_ch) || isUpper(_ch);
}
bool isNumeric(char _ch)
{
return isInRange(_ch, '0', '9');
}
bool isAlphaNum(char _ch)
{
return false
|| isAlpha(_ch)
|| isNumeric(_ch)
;
}
bool isHexNum(char _ch)
{
return false
|| isInRange(toLower(_ch), 'a', 'f')
|| isNumeric(_ch)
;
}
bool isPrint(char _ch)
{
return isInRange(_ch, ' ', '~');
}
typedef bool (*CharTestFn)(char _ch);
template<CharTestFn fn>
inline bool isCharTest(const StringView& _str)
{
@@ -125,11 +66,6 @@ namespace bx
return isCharTest<isPrint>(_str);
}
char toLower(char _ch)
{
return _ch + (isUpper(_ch) ? 0x20 : 0);
}
void toLowerUnsafe(char* _inOutStr, int32_t _len)
{
for (int32_t ii = 0; ii < _len; ++ii)
@@ -144,11 +80,6 @@ namespace bx
toLowerUnsafe(_inOutStr, len);
}
char toUpper(char _ch)
{
return _ch - (isLower(_ch) ? 0x20 : 0);
}
void toUpperUnsafe(char* _inOutStr, int32_t _len)
{
for (int32_t ii = 0; ii < _len; ++ii)
@@ -165,7 +96,7 @@ namespace bx
typedef char (*CharFn)(char _ch);
inline constexpr char toNoop(char _ch)
inline BX_CONSTEXPR_FUNC char toNoop(char _ch)
{
return _ch;
}
@@ -560,8 +491,6 @@ namespace bx
);
}
constexpr uint32_t kFindStep = 1024;
StringView strFindNl(const StringView& _str)
{
StringView str(_str);
@@ -578,23 +507,19 @@ namespace bx
StringView strFindEol(const StringView& _str)
{
StringView str(_str);
const StringView eol = strFind(_str, '\n');
for (; str.getPtr() != _str.getTerm()
; str = StringView(min(str.getPtr() + kFindStep, _str.getTerm() ), min(str.getPtr() + kFindStep*2, _str.getTerm() ) )
)
if (!eol.isEmpty() )
{
StringView eol = strFind(str, "\r\n");
if (!eol.isEmpty() )
const char* ptr = eol.getPtr();
if (ptr != _str.getPtr()
&& '\r' == ptr[-1])
{
return StringView(eol.getPtr(), _str.getTerm() );
--ptr;
}
eol = strFind(str, '\n');
if (!eol.isEmpty() )
{
return StringView(eol.getPtr(), _str.getTerm() );
}
return StringView(ptr, _str.getTerm() );
}
return StringView(_str.getTerm(), _str.getTerm() );