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GoFiler Legato Script Reference
Legato v 1.5d Application v 5.25a
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Chapter Eleven — SGML Functions (continued)
Overview
The SGMLPreviousElement function moves the parser backward until an SGML tag (element) is found. An optional start position can be provided. By default, the parse continues backward from the current position.
Syntax/Parameters
Syntax
string = SGMLPreviousElement ( handle hSGML, [int x, int y] );
Parameters
hSGML
A handle to an SGML object.
x
An optional int value specifying the zero-based X position to parse from. The position is native. When provided, the Y position must also be provided. If omitted, the function parses from the current position.
y
An optional int value specifying the zero-based Y position to parse from. The X position must be provided with this parameter.
Return Value
A string containing the tag’s text, an empty string on error. Use the GetLastError function to retrieve an error code.
Remarks
The SGMLPreviousElement skips all spaces, character entities and PCDATA to get to the previous element. If the end of data is reached prior to a tag, an empty string is returned and ERROR_EOD will be placed in the last error buffer.
The current position, properties and other characteristics are made available through various ‘get’ functions.
Since SGMLPreviousElement only reads tags, the element attributes/properties are loaded into the SGML Object.
Related Functions
Platform Support
Go13, Go16, GoFiler Complete, GoFiler Corporate, GoFiler, GoFiler Lite, GoXBRL
Legato IDE, Legato Basic
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