list_file

Saves a list.

Available in:

Apps (win) Apps (char) Reportwriter RPC Standalone PL
X X X X X

Syntax

void list_file(list-name,file-name,file-type[,save-col,...])
list           list-name
string         file-name
string         file-type
expr           save-col

Description

Saves a list to a specified location.
list-name specifies the list to save.

file-name specifies the name to save to. Whenever a file name is specified the extended file names are available. Be sure to give a complete file specification.

file-type specifies the type. Values can be:
  • a[a][sc[q]] --- store as text. [a] appends to text file. If [sc] is not specified, then all columns are stored as one text line. [sc] stores the file with columns separated by c. For example, "as," creates a new comma separated data file; "aas," appends to an existing file. Non-integer numerics will be written in scientific notation. [q] specifies q as the character column quote character. For example, "as,'" creates a new comma separated data file with character column data delimited by "'".
  • b[a] --- store as binary file. [a] appends to binary file. Maintains list's column structure, but loses column names.
  • s[n] --- store in shared memory. [n] allocates a new shared memory segment.
  • x[d] --- store as text file in XML format. Maintains list's column structure and column names as well as recursive list structures. [d] stores only the data as text file in XML format.
save-col (optional) specifies the columns to save. Column numbers can be any expression that evaluates to either an integer or a char string containing space-delimited integers or any combination of these. The default is all columns.

Notes

To use the shared list option, the TRIM_SHM_FILE environment variable must point to a valid file-name. Also, when using the shared list option, save-col is ignored; in other words, all columns are stored.

If you use the "?a" append option, the first list_file() call must not have the append option.

Example

Saves the parts list for later use. 
list_file(xx,"parts.lst","b");
Prints part descriptions. 
list_file(xx,"/dev/lp","a",1);