history: Searching the History List
2.3.5 Searching the History List
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These functions allow searching of the history list for entries
containing a specific string. Searching may be performed both forward
and backward from the current history position. The search may be
"anchored", meaning that the string must match at the beginning of the
history entry.
-- Function: int history_search (const char *string, int direction)
Search the history for STRING, starting at the current history
offset. If DIRECTION is less than 0, then the search is through
previous entries, otherwise through subsequent entries. If STRING
is found, then the current history index is set to that history
entry, and the value returned is the offset in the line of the
entry where STRING was found. Otherwise, nothing is changed, and a
-1 is returned.
-- Function: int history_search_prefix (const char *string, int
direction)
Search the history for STRING, starting at the current history
offset. The search is anchored: matching lines must begin with
STRING. If DIRECTION is less than 0, then the search is through
previous entries, otherwise through subsequent entries. If STRING
is found, then the current history index is set to that entry, and
the return value is 0. Otherwise, nothing is changed, and a -1 is
returned.
-- Function: int history_search_pos (const char *string, int direction,
int pos)
Search for STRING in the history list, starting at POS, an absolute
index into the list. If DIRECTION is negative, the search proceeds
backward from POS, otherwise forward. Returns the absolute index
of the history element where STRING was found, or -1 otherwise.
Info Catalog
history: Moving Around the History List
history: History Functions
history: Managing the History File