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• Document$ is a string containing the source document.
• PageHeader$ is a sub string of Document$ which indicates the first line of the section.
• PageEnd$ is a sub string of Document$ that indicates the end of the section.
  The result starts with the first line of Document$ containing PageHeader$ and ends with the line just before the line containing PageEnd$.
• AddLines% is an optional value, containing the number of lines to be added at the end of the section. E.g. when AddLines%=1, also the line containing PageEnd$ is included.

Remarks

1. If PageHeader$="NullString", the function returns "NullString".
2. If PageHeader$ is not found, the function also returns "NullString".
3. If PageEnd$="NullString", the function returns all text from Document starting with PageHeader$.
4. If PageEnd$ is not found, the function also returns all text from Document starting with PageHeader$.
5. The last line of the result returned by SECTION$() is always terminated by a CrLf (Carriage Return + LineFeed: Chr$(13)+Chr$(10) ). Multiple repeating CrLf's at the end of an extracted section are removed as well as trailing strings from each line in that result.
6. One can also use the PARAGRAPH$() function to return a section of a document.

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SECTION$(Document$, "falls apart", "ceremony")

returns

"NullString"

since "falls apart" is not present in Document$.

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