Programmer Guide/Shell Items/File/FILE Item Attributes: Difference between revisions
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|- | |- | ||
| !ATTRIBUTES | | !ATTRIBUTES | ||
| <code>DIRECTORY | | <code>DIRECTORY|SYSTEM|HIDDEN|NORMAL</code> | ||
| type attributes of file attached to the file item | | type attributes of file attached to the file item | ||
|- | |- | ||
| !ACCESS | | !ACCESS | ||
| <code>READ | | <code>READ|WRITE|APPEND</code> | ||
| access attributes of file attached to the file item | | access attributes of file attached to the file item | ||
|- | |- | ||
| Line 44: | Line 44: | ||
|- | |- | ||
| !TYPE | | !TYPE | ||
| <code>FILE | | <code>FILE|LIST|TEXT|SECTION|XML</code> | ||
| type of file item (set in NEW command) | | type of file item (set in NEW command) | ||
|- | |- | ||
| Line 60: | Line 60: | ||
|- | |- | ||
| rowspan="2" | !CHANGED | | rowspan="2" | !CHANGED | ||
| <code>1 | | <code>1|0</code> | ||
| A value of 1 indicates that the file has been changed in memory and has not been saved yet. A value of 0 indicates that the file in memory is identical to that on disk. | | A value of 1 indicates that the file has been changed in memory and has not been saved yet. A value of 0 indicates that the file in memory is identical to that on disk. | ||
|- | |- | ||
Revision as of 10:38, 11 May 2012
The following file item attributes can be queried in the format $#fileItem[Attribute].
Contents
General file item attributes
| Attribute | Value(s) and Description | |
|---|---|---|
| !PATH | full path of the file attached to the respective file item | |
| !DRIVE | the drive letter (without a colon) of the file attached to the respective file item | |
| !DIRECTORY | the directory (without a trailing backslash) of the file attached to the respective file item | |
| !NAME | the name of file attached to the file item | |
| !EXTENSION | extension part of the filename (without the leading .) of the file attached to the respective file item
| |
| !CREATED | yyyy.mm.dd hh.mm.ss
|
creation date and time of file attached to the file item |
| !MODIFIED | yyyy.mm.dd hh.mm.ss
|
time of last modification of file attached to the file item |
| !ATTRIBUTES | DIRECTORY|SYSTEM|HIDDEN|NORMAL
|
type attributes of file attached to the file item |
| !ACCESS | READ|WRITE|APPEND
|
access attributes of file attached to the file item |
| !SIZE | filesize
|
size of file attached to the file item in bytes |
| !TYPE | FILE|LIST|TEXT|SECTION|XML
|
type of file item (set in NEW command) |
| !SHELL | owner
|
shellidid of shell creating the file item (8 hex digits) |
| !USERS | numusers
|
number of linked items sharing the file item |
| !LASTACCESS | yyyy.mm.dd hh.mm.ss
|
date and time of the last access to the file attached to the file item |
| !CHANGED | 1|0
|
A value of 1 indicates that the file has been changed in memory and has not been saved yet. A value of 0 indicates that the file in memory is identical to that on disk. |
assigning 1 or 0
|
You may programmatically set, or reset, the value of the !CHANGED attribute by assigning 1, or 0, to this attribute:
$#file[!changed] := 1 // set the attribute $#file[!changed] := 0 // reset the attribute Warning: this functionality changed in version 3.9.0. Previously, setting the attribute using '1' would reset the attribute, and using the value '0' was unsupported. | |
Binary file item attributes
| Attribute | Value(s) and Description |
|---|---|
| !BININFO | number of sectionsAfter a LIST commandindex of last loaded/saved sectionAfter a LOAD command-1If the file is not a binary file, or the last command failed. |
GDX file item attributes
The GDX file item supports the following attributes in addition to the general file item attributes.
- !DATA
- The
!DATAattribute returns data from the GDX file.
$#gdx[!DATA] // returns all the data
$#gdx[!DATA,index,count] // returns one or more columns
indexdetermines the first column, andcountthe number of columns to return.
- !DATATYPE
- The !DATATYPE attribute returns the data type of this GDX file (See Creating a GDX file for details).
- !NCOL
- The
!NCOLattribute returns the number of columns.
- !NROW
- The
!NROWattribute returns the number of rows.
- !NWRITTEN
- The
!NWRITTENattribute returns the number of columns which have been written (rather than defined).
XML file item attributes
General attributes of XML file items
| Attribute | Value(s) | Description |
|---|---|---|
| !XROOT | root_element_nametag | name of the root element |
| !XPARENT | parent_element_nametag | name of the parent element |
| !XPARENTPATH | root_element_name\…\parent_element_name | full path of the parent element |
| !XELEMENTS | elementcountnumber | of elements on selected element level |
| !XNODETYPE | COMMENT|PROC|DOCTYPE | type of the selected node |
Attributes of the selected element of a XML file item
| Attribute | Argument | Value(s) and Description |
|---|---|---|
| !XALL | ||
| a list of all element parts | ||
| tag | element tag name | |
| empty | 1 if element data is empty, 0 otherwise | |
| cdata | 1 if element data is a CData-section, 0 otherwise | |
| childs | number of child elements | |
| size | size of data section (characters) | |
| nattr | number of attributes | |
| attr0,… | name of attribute 0, ... (0 to nattr-1) | |
| !XTAG | - | element_tag |
| !XATTRIBUTES | - | number_of_attributes |
| !XATTRIBUTE | index | attribute_name name of attribute number index |
| !XATTRIBUTE | name | attribute_value value of attribute named name |
| !XEMPTY | - | returns 1 if element is empty (no data) and 0 otherwise |
| !XCDATA | - | returns 1 if element contains a CData section and 0 otherwise |
| !XCHILDS or !XCHILDREN | - | returns number of child elements of the selected element |
| !XSIZE | - | size of data section in characters |
| !XDATA | - | content of data section |
XML file item document/element type definition attributes
| Attribute-Id | Sub-Id 1 | Sub-Id 2 | Value(s) and Description | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| !XDTNAME | - | - | name of document type definition | ||||||||||||||||||||
| !XDTROOT | - | - | tag of root element | ||||||||||||||||||||
| !XDTELEMENTS | - | - | number of defined element types | ||||||||||||||||||||
| !XDTELEMENT | index or tag | - | definition of element type with specified index or tag; the result is
| ||||||||||||||||||||
| !XDTCHILDREN | tag | - | number of children defined for element tag | ||||||||||||||||||||
| !XDTCHILD | tag | cindex or ctag | definition of child cindex or ctag of the element tag. The result is:ctag min maxwith:
| ||||||||||||||||||||
| !XDTATTRIBUTES | tag | - | number of attributes defined for element tag | ||||||||||||||||||||
| !XTDATTRIBUTE | tag | aindex or aname | definition of attribute aindex or aname of element tag. The result is:aname req vis val type paramswith:
| ||||||||||||||||||||
| !XDTISA | tag | none | returns 1 if the selected element of the file item is of type tag or is derived from tag and 0 otherwise
|