private static Func <PcreCallout, PcreCalloutResult> AutoCalloutHandler(string text)
{
return(arg =>
{
var patternStart = Math.Max(0, arg.PatternPosition - 20);
var patternEnd = Math.Min(PATTERN.Length - 1, arg.PatternPosition + arg.NextPatternItemLength + 20);
var pattern = (
PATTERN.Substring(patternStart, arg.PatternPosition - patternStart)
+ HILITE + PATTERN.Substring(arg.PatternPosition, arg.NextPatternItemLength) + NORMAL
+ PATTERN.Substring(
arg.PatternPosition + arg.NextPatternItemLength,
patternEnd - (arg.PatternPosition + arg.NextPatternItemLength - 1)
)
);
var textStart = Math.Max(0, arg.Match.Index - 20);
var textEnd = Math.Min(text.Length - 1, arg.Match.EndIndex + 20);
var at = (
text.Substring(textStart, arg.Match.Index - textStart)
+ HILITE + arg.Match.Value + NORMAL
+ text.Substring(arg.Match.EndIndex, textEnd - arg.Match.EndIndex)
).Replace("\t", "\\t").Replace("\n", "\\n").Replace("\r", "\\r");
Console.WriteLine(DebugRE.Replace(pattern, ""));
#if !ANSI_TERMINAL
Console.WriteLine(
new string(' ', DebugRE.Replace(PATTERN.Substring(patternStart, arg.PatternPosition - patternStart), "").Length)
+ new string('^', DebugRE.Replace(PATTERN.Substring(arg.PatternPosition, arg.NextPatternItemLength), "").Length)
);
#endif
Console.WriteLine(at);
#if !ANSI_TERMINAL
Console.WriteLine(
new string(' ', text.Substring(textStart, arg.Match.Index - textStart).Replace("\t", "\\t").Replace("\n", "\\n").Replace("\r", "\\r").Length)
+ new string('^', Math.Max(1, arg.Match.Length))
);
#endif
//Console.WriteLine($"mi:{arg.Match.Index},me:{arg.Match.EndIndex},ml:{arg.Match.Length},cc:{arg.Match.CaptureCount},{arg.Match.Success},{(arg.Match.Success ? $"'{arg.Match.Value}'" : "---")}");
Console.WriteLine($"co:{arg.CurrentOffset},lc:{arg.LastCapture},xc:{arg.MaxCapture},sm:{arg.StartMatch},so:{arg.StartOffset},'{arg.String}',So:{arg.StringOffset},bt:{arg.Backtrack}");
Console.WriteLine(string.Join("; ", arg.Match.Groups.Select(g => $"@{g.Index},{g.Success},{(g.Success ? $"'{g.Value}'" : "---")}")));
Console.WriteLine();
return PcreCalloutResult.Pass;
});
}
public void should_replace_indexed_groups_without_braces_at_end_of_pattern()
{
var re = new PcreRegex(@"a+(?<grp>b+)", PcreOptions.IgnoreCase);
var result = re.Replace("foo aabb bar aaabbab baz", "#$1");
Assert.That(result, Is.EqualTo("foo #bb bar #bb#b baz"));
}
public void should_insert_nothing_if_there_are_no_groups()
{
var re = new PcreRegex(@"a+");
var result = re.Replace("foo bar", "<$+>");
Assert.That(result, Is.EqualTo("foo b<>r"));
}
public void should_replace_matches_with_callback()
{
var re = new PcreRegex(@"a+", PcreOptions.IgnoreCase);
var result = re.Replace("foo aaa bar aAAa baz", match => match.Length.ToString(CultureInfo.InvariantCulture));
Assert.That(result, Is.EqualTo("foo 3 b1r 4 b1z"));
}
public void should_insert_last_matched_group()
{
var re = new PcreRegex(@"a+(b+)(c+)?", PcreOptions.IgnoreCase);
var result = re.Replace("foo aabb bar aaabbabcc baz", "<$+>");
Assert.That(result, Is.EqualTo("foo <bb> bar <bb><cc> baz"));
}
public void should_insert_nothing_if_no_group_matched()
{
var re = new PcreRegex(@"a+(b+)?");
var result = re.Replace("foo aabb bar baz", "<$+>");
Assert.That(result, Is.EqualTo("foo <bb> b<>r b<>z"));
}
public void should_insert_dollar()
{
var re = new PcreRegex(@"a+(b+)", PcreOptions.IgnoreCase);
var result = re.Replace("foo aabb bar aaabbab baz", "$$-$");
Assert.That(result, Is.EqualTo("foo $-$ bar $-$$-$ baz"));
}
public void should_insert_subject()
{
var re = new PcreRegex(@"a+(b+)", PcreOptions.IgnoreCase);
var result = re.Replace("foo aabb bar aaabbab baz", "<$_>");
Assert.That(result, Is.EqualTo("foo <foo aabb bar aaabbab baz> bar <foo aabb bar aaabbab baz><foo aabb bar aaabbab baz> baz"));
}
public void should_replace_matches_with_pattern()
{
var re = new PcreRegex(@"a+(b+)", PcreOptions.IgnoreCase);
var result = re.Replace("foo aabb bar aaabbab baz", "<$0><$1><$&>");
Assert.That(result, Is.EqualTo("foo <aabb><bb><aabb> bar <aaabb><bb><aaabb><ab><b><ab> baz"));
}
public void should_replace_named_groups()
{
var re = new PcreRegex(@"a+(?<grp>b+)", PcreOptions.IgnoreCase);
var result = re.Replace("foo aabb bar aaabbab baz", "<${grp}>");
Assert.That(result, Is.EqualTo("foo <bb> bar <bb><b> baz"));
}
public void should_start_at_given_index_and_replace_count()
{
var re = new PcreRegex(@"a+", PcreOptions.IgnoreCase);
var result = re.Replace("foo aabb bar aaabbab baz", "X", 2, 8);
Assert.That(result, Is.EqualTo("foo aabb bXr Xbbab baz"));
}
private static JObject ExtractXml(string text, out string error)
{
var result = new JObject
{
{ EXPENSE, new JObject() },
{ "_original", text }
};
foreach (PcreMatch match in ExtractXmlRE.Matches(text
#if PCRE_DEBUG
, 0, AutoCalloutHandler(text)
#endif
))
{
ProcessXmlFragment(match.Value, result);
}
var expense = (JObject)result[EXPENSE];
JToken _;
var errors =
from requiredKey in RequiredKeys
where !expense.TryGetValue(requiredKey, out _)
select $"Required key '{requiredKey}' was not found!";
if (LooseXmlRE.IsMatch(ExtractXmlRE.Replace(text, "")))
{
errors = errors.Concat(new[] { "Malformed XML found!" });
}
error = string.Join(Environment.NewLine, errors).NullIfEmpty();
return(result);
}
public void should_not_replace_when_count_is_zero()
{
var re = new PcreRegex(@"a+", PcreOptions.IgnoreCase);
var result = re.Replace("foo aabb bar aaabbab baz", "X", 0);
Assert.That(result, Is.EqualTo("foo aabb bar aaabbab baz"));
}
public void should_only_replace_given_count()
{
var re = new PcreRegex(@"a+", PcreOptions.IgnoreCase);
var result = re.Replace("foo aabb bar aaabbab baz", "X", 2);
Assert.That(result, Is.EqualTo("foo Xbb bXr aaabbab baz"));
}
public void readme_replace_example()
{
var result = PcreRegex.Replace("hello, world!!!", @"\p{P}+", "<$&>");
Assert.That(result, Is.EqualTo("hello<,> world<!!!>"));
}
public string should_handle_backslash_k_in_lookahead(string replacement)
{
var re = new PcreRegex(@"(?=a+b\K)");
return(re.Replace("aabab", replacement));
}
public string should_not_throw_on_invalid_replacement_patterns(string replacement)
{
var re = new PcreRegex(@"a+(?<n>b+)", PcreOptions.IgnoreCase);
return(re.Replace("foo aabb bar aaabbab baz", replacement));
}
public string Replace(string input, string pattern, string replacement)
{
return(PcreRegex.Replace(input, pattern, replacement));
}
