replaceFirst

replaceFirst(text:         String;
             replacements: String;
             pattern:      String;
             ignoreCase:   Boolean): String;

The replaceFirst method of the JadeRegex class replaces only the first occurrence (if any) of the specified pattern in the specified text with the replacement text. This method returns the replacement string or it returns the original text if there is no successful match.

The replaceFirst method parameters are described in the following table.

Parameter	Description
text	Text string within which your want to replace text
replacements	Text with which to replace the first match
pattern	Regex pattern string
ignoreCase	Specifies whether matching is case-sensitive

The following is an example of a replaceFirst type method.

typeReplaceFirst();
vars
    text, pattern, replacement : String;
begin
    text := "<p>lorem ipsom</p><p>paragraph2</p>";
    pattern := "<p>[^<]*</p>";
    replacement := '<p>paragraph1</p>';
    write JadeRegex@replaceFirst(text, replacement, pattern, true);
    /* writes <p>paragraph1</p><p>paragraph2</p> */
end;

2020.0.01 and higher