X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Fstrings%2Ffmt.cpp;fp=source%2Fstrings%2Ffmt.cpp;h=e06f71ab456f40d55825345ea413bc6981d10dd6;hp=0000000000000000000000000000000000000000;hb=b42ed73a1b241c0e93ee03c43c4584b41c549bac;hpb=5b1368cb791cab043f0435628cacbaff36e39b7b

diff --git a/source/strings/fmt.cpp b/source/strings/fmt.cpp
new file mode 100644
index 0000000..e06f71a
--- /dev/null
+++ b/source/strings/fmt.cpp
@@ -0,0 +1,127 @@
+/* $Id$
+
+This file is part of libmspstrings
+Copyright © 2006-2008 Mikko Rasa
+Distributed under the LGPL
+*/
+
+#include <msp/core/except.h>
+#include "fmt.h"
+
+using namespace std;
+
+namespace Msp {
+
+void Fmt::parse(const char *f)
+{
+	if(*f=='%') ++f;
+
+	for(; *f; ++f)
+	{
+		if(*f=='#')
+		{
+			sbase = true;
+			spoint = true;
+		}
+		else if(*f=='0')
+			fillc = '0';
+		else if(*f=='-')
+			align = LEFT;
+		else if(*f=='+')
+			spos = true;
+		else
+			break;
+	}
+
+	wd = 0;
+	for(; *f; ++f)
+	{
+		if(*f>='0' && *f<='9')
+			wd = wd*10+(*f-'0');
+		else
+			break;
+	}
+
+	if(*f=='.')
+	{
+		++f;
+		prec = 0;
+		for(; *f; ++f)
+		{
+			if(*f>='0' && *f<='9')
+				prec = prec*10+(*f-'0');
+			else
+				break;
+		}
+	}
+
+	type = NUM;
+	if(*f=='d' || *f=='u')
+		base = DEC;
+	else if(*f=='x' || *f=='X')
+		base = HEX;
+	else if(*f=='o')
+		base = OCT;
+	else if(*f=='b')
+		base = BIN;
+	else if(*f=='e' || *f=='E')
+		fmode = SCI;
+	else if(*f=='f' || *f=='F')
+		fmode = FIXED;
+	else if(*f=='g' || *f=='G')
+		fmode = AUTOFLT;
+	else if(*f=='p' || *f=='P')
+	{
+		base = HEX;
+		sbase = true;
+	}
+	else if(*f=='c')
+		type = CHAR;
+	else if(*f=='s')
+		type = STR;
+	else if(*f=='i')
+		base = AUTOBASE;
+	else
+		throw InvalidParameterValue("Invalid conversion specifier");
+
+	if(*f=='E' || *f=='F' || *f=='G' || *f=='X' || *f=='P')
+		ucase = true;
+
+	++f;
+
+	if(*f)
+		throw InvalidParameterValue("Extra characters in conversion specification");
+}
+
+Fmt &Fmt::reset()
+{
+	wd = 0;
+	prec = 6;
+	spos = false;
+	fillc = ' ';
+	base = DEC;
+	sbase = false;
+	fmode = AUTOFLT;
+	spoint = false;
+	align = RIGHT;
+	ucase = false;
+	type = STR;
+
+	return *this;
+}
+
+void Fmt::apply(ostream &out) const
+{
+	out.flags(((base==HEX) ? ios_base::hex : (base==OCT) ? ios_base::oct : ios_base::dec)
+		| ((fmode==SCI) ? ios_base::scientific : (fmode==FIXED) ? ios_base::fixed : ios_base::fmtflags(0))
+		| (fillc=='0' ? ios_base::internal : (align==LEFT) ? ios_base::left : ios_base::right)
+		| (sbase ? ios_base::showbase : ios_base::fmtflags(0))
+		| (spoint ? ios_base::showpoint : ios_base::fmtflags(0))
+		| (spos ? ios_base::showpos : ios_base::fmtflags(0))
+		| (ucase ? ios_base::uppercase : ios_base::fmtflags(0)));
+	out.fill(fillc);
+	out.width(wd);
+	out.precision(prec);
+}
+
+} // namespace Msp