less/dist/search.c

1 /*	$NetBSD: search.c,v 1.5 2023/10/06 05:49:49 simonb Exp $	*/
14  * Routines to search a file for a pattern.
61  * search for constant-time lookup if the next search is near enough to
113  * search pattern and filter pattern.
163  * Compile and save a search pattern.
204  * Initialize search variables.
230  * Is there a previous (remembered) search pattern?
338  * Toggle or clear search string highlighting.
429 			 * distance, don't keep doing a linear search!
1018  * Figure out where to start a search.
1204 	/* When the search wraps around, end at starting position. */
1217 			 * A signal aborts the search.
1266 				 * The search wraps around the current file, so
1285 					 * continue the search at new pos.
1302 		 * the search.  Remember the line number only if
1317 		 * If it's a caseless search, convert the line to lowercase.
1384 						 * search match is fully visible.
1436  * search for a pattern in history. If found, compile that pattern.
1464  * Updates the internal search state to reflect a change in the -i flag.
1472 		 * Set the search caselessness to the global caselessness.
1495  * Return -1 if the search should be aborted.
1496  * Caller may continue the search in another file
1499 public int search(int search_type, char *pattern, int n)
1522 			error("Please re-enter search pattern", NULL_PARG);
1530 			 * If the search fails, we'll redisplay them later.
1538 			 * before we actually start the search.
1568 			 * before we actually start the search.
1576 	 * Figure out where to start the search.
1591 		error("Nothing to search", NULL_PARG);
1639  * the current search pattern, and hilites have been created for such matches.
1654  * Search beyond where we're asked to search, so the prep region covers
1655  * more than we need.  Do one big search instead of a bunch of small ones.
1683 	 * The range that we need to search (spos,epos); and the range that
1722 			 * Truncate search to end at start of old prep region.
1743 			 * Trim search to start at end of old prep region.