TranslateAddHook Function

GoFiler Legato Script Reference

Legato v 1.5d

Application v 5.25a

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Chapter Twenty-two — Conversion Functions (continued)

TranslateAddHook Function

Overview

The TranslateAddHook function adds a translate filter to the translate module.

Syntax/Parameters

Syntax

dword = TranslateAddHook ( string name,
                       string s_format | dword s_code,
                       string d_format | dword d_code,
                       string description, string script, string function.
                       [dword flags] );

Parameters

name

A string defining the name of the conversion filter such as ‘CSVtoSpecialHTML’.

s_format or s_code

A string or dword specifying the source file type as a string or a code.

d_format or d_code

A string or dword specifying the destination file type as a string or a code.

description

A string specifying the description of the filter. This description is displayed in the import selection dialog.

script

An optional string that specifies the script that will service the translate. If empty, the script name from the script executing the function is used.

function

A string specifying the name of the entry function for translation.

flags

An optional dword specifying flags. Presently the only flag is TAH_ALLOW_DUPLICATES or TRUE which will allow the same file types.

Return Value

A dword as as the translate type code or a formatted error code. The the code is essentially a script ID and serial number.

On success, the last error will also contain information regarding the translate index table insertion:


Definition		Bitwise	Description
Translate Table
	TAH_INDEX_MASK	0x000000FF	Translate Table Index Mask
Flags
	TAH_REPLACED_BY_NAME	0x00010000	Replaced Existing Name
	TAH_REPLACED_BY_TYPE	0x00020000	Replaced Existing Type Pair
	TAH_OVERRODE_TYPE_MATCH	0x00040000	Overrode Existing File Type Match

Remarks

This function allows the import and translate function to be extended with custom conversion scripts. An example of adding a hook:

TranslateAddHook("IDMLtoHTML", FT_IDML, FT_HTML,
"InDesign Markup Language (IDML) to HTML for one or more files.", "",
"idml_to_html_hook");

Note that the script name parameter is an empty, thus the hook script is the source for the specified connection. The hook is normally defined during application startup. See Section 17.2 Application Startup for more information.

Creating the Hook

The hook entry point in the script must match the following template:

int translate_hook (string xl_src, string xl_dst, string xl_dst_base,
dword xl_flags, string xl_options);

Where

xl_src

A string containing a fully qualified source file. It can be a URI.

xl_dst

A string containing a fully qualified destination file. The file can be in the application (user’s) temporary area.

xl_dst_base

A string containing a the base path for the destination. If image or other companion files must be created, they should be placed in this folder.

xl_flags

A dword specifying various control bits.

xl_options

A string in the form of parameter: value pairs that may be passed with data from the API or other source and can be used by the script to set various options.

The xl_flags parameter tells the hook about the context and requested operations. These are bitwise items specified as follows:

Definition		Bitwise	Comment/Description
Shares with Options Settings
	XL_GLOBAL_FLAGS_MASK	0xFFFF0000	Global Import/Translate Options
	XL_MODULE_FLAGS_MASK	0x0000FFFF	Reserved Import/Translate Options
	XL_SUB_TYPE_MASK	0x0000000F	Sub Type of Conversion for Module
General Flags
Control
	XL_QUIET	0x00010000	Do Not Display Messages
	XL_PSG_FORMAT	0x00020000	Output in PSG Format (if possible)
	XL_NO_NEW_LINES	0x00040000	Output With 0x0D (not 0x0D/0x0A)
	XL_WANT_LOG	0x00080000	Output Errors to Translate Log
Context
	XL_CONVERT_AS_INSERT	0x00100000	Treat as Inserting
	XL_MULTI_IMPORT	0x00200000	Importing Multiple Sheets
	XL_SOURCED_FROM_CLIPBOARD	0x00400000	Sourced from Clipboard
Multiple Files
	XL_GROUP_IMPORT_MODE_MASK	0x03000000	Multiple File Mode (if supported)
	XL_GROUP_IMPORT_SINGLE	0x00000000	Import Single File
	XL_GROUP_IMPORT_MULTIPLE	0x01000000	Automatically Import Multiple
	XL_GROUP_IMPORT_QUERY	0x02000000	Query if Multiple

The default log for the script is imported back into the caller to the hook and then included into the Information View window. Note that on paste, an error must be in the log for it to appear at the end of the operation.

The XL_SOURCED_FROM_CLIPBOARD flag will indicate whether the source data was retrieved from the clipboard. If the XL_QUIET, the hook should not display message boxes or dialog boxes.

A formatted error code should be returned upon completion or error. The script should perform its own cleanup.

Related Functions

Platform Support

Go13, GoFiler Complete, GoFiler Corporate, GoFiler, GoXBRL

Page revised 2024-12-13

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