Qedit Workfiles
The Qedit workfile provides both random and sequential access to variable-length lines of text. The workfile is broken into blocks. Each block contains several Qedit lines (the exact number depends on the length of the lines). The lines in a block have contiguous line numbers and are extracted from the block by Qedit.
Block 0 of the workfile has a special format because it contains the control and indexing information.
The first Qedit line is always in block 1, and the start of block 1 points to the next sequential block in the file, which need not be block 2. Each block points to the next, and end-of-file occurs when the forward pointer is zero.
There are three different formats of Qedit workfiles: original, Jumbo, and Wide-Jumbo. All formats work in Qedit for MPE and Qedit for HP-UX, but the default for MPE is the original format while the default for HP-UX is Wide-Jumbo.