public void NotClosedByEoS()
{
// Literals are not closed by EOS
string src = "\" ";
int[] exp = { 1, 1 };
var lit = new InLiteral();
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], lit.WithinLiteral(src[i]) ? 1 : 0);
}
Assert.Equal(1, lit.WithinLiteral('\0') ? 1 : 0);
}
public void ClosedByNewLine()
{
// Literals *are* closed by '\n'
string src = "\" '\n ";
int[] exp = { 1, 1, 1, 0, 0 };
var lit = new InLiteral(InLiteral.EFlags.Escaped | InLiteral.EFlags.SingleLineStrings);
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], lit.WithinLiteral(src[i]) ? 1 : 0);
}
}
public void MatchSameQuoteMark()
{
// Literals must match " to " and ' to '
string src = "\"'\" '\"' ";
int[] exp = { 1, 1, 1, 0, 1, 1, 1, 0 };
var lit = new InLiteral();
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], lit.WithinLiteral(src[i]) ? 1 : 0);
}
}
public void EscapedQuotesIgnored()
{
// Escaped quotes are ignored
string src = " \"\\\"\" ";
int[] exp = { 0, 1, 1, 1, 1, 0 };
var lit = new InLiteral();
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], lit.WithinLiteral(src[i]) ? 1 : 0);
}
}
public void ExcludeQuotes()
{
// Escape sequences are not always 1 character, but it doesn't
// matter because we only care about escaped quotes.
string src = " \"\\xB1\" ";
int[] exp = { 0, 0, 1, 1, 1, 1, 0, 0 };
// Don't include the quotes
var lit = new InLiteral(InLiteral.EFlags.Escaped | InLiteral.EFlags.ExcludeQuotes);
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], lit.WithinLiteral(src[i]) ? 1 : 0);
}
}
/// <summary>Buffer from the current position to the next keyword</summary>
private static int BufferTemplateDeclaration(Src src)
{
// Stop buffering when the next keyword is found, or, if the
// template contains a section, when the section end is found.
var nest = 0;
var has_section = false;
var lit = new InLiteral();
Extract.BufferWhile(src, (s, i) =>
{
var ch = s[i];
if (lit.WithinLiteral(ch))
{
return(1);
}
nest += "{[(<".Contains(ch) ? 1 : 0;
nest -= "}])>".Contains(ch) ? 1 : 0;
has_section |= ch == '{';
if (nest > 0)
{
return(1);
}
if (nest < 0)
{
return(0);
}
if (has_section && ch == '}')
{
return(0);
}
if (!has_section && (ch == TemplateMark || ch == ReferenceMark || ch == ExpandMark))
{
return(0);
}
return(1);
}, 1, out var len);
if (has_section && src[len] == '}')
{
++len;
}
return(len);
}