December 2002
Intermediate to advanced
1232 pages
56h 38m
English
A line that begins with either a tab or a space character is considered a continuation of the preceding line. Internally, such continuation lines are joined to the preceding line, and the newline character of that preceding line is retained. Thus, for example:
DZzoos
lions and bears
↑line begins with a tab characteris internally joined by sendmail to form:
DZzoos\n lions and bears
↑newline and tab retainedBoth the newline (\n) and the tab are retained.
When such a joined line is later used (as in a header), the joined
line is split at the newline and prints as two separate lines again.
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