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Linux and UNIX Man Pages

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OpenSolaris 2009.06 - man page for lsearch (opensolaris section 1t)

lsearch(1T)						       Tcl Built-In Commands						       lsearch(1T)

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NAME
lsearch - See if a list contains a particular element
SYNOPSIS
lsearch ?options? list pattern _________________________________________________________________
DESCRIPTION
This command searches the elements of list to see if one of them matches pattern. If so, the command returns the index of the first match- ing element (unless the options -all or -inline are specified.) If not, the command returns -1. The option arguments indicates how the | elements of the list are to be matched against pattern and it must have one of the following values: -all Changes the result to be the list of all matching indices (or all matching values if -inline is specified as well.) | -ascii The list elements are to be examined as Unicode strings (the name is for backward-compatability reasons.) This option is only mean- ingful when used with -exact or -sorted. -decreasing The list elements are sorted in decreasing order. This option is only meaningful when used with -sorted. -dictionary The list elements are to be compared using dictionary-style comparisons (see lsort for a fuller description). This option is only meaningful when used with -exact or -sorted, and it is only distinguishable from the -ascii option when the -sorted option is given, because values are only dictionary-equal when exactly equal. -exact The list element must contain exactly the same string as pattern. -glob Pattern is a glob-style pattern which is matched against each list element using the same rules as the string match command. -increasing The list elements are sorted in increasing order. This option is only meaningful when used with -sorted. -inline The matching value is returned instead of its index (or an empty string if no value matches.) If -all is also specified, then the | result of the command is the list of all values that matched. -integer The list elements are to be compared as integers. This option is only meaningful when used with -exact or -sorted. -not This negates the sense of the match, returning the index of the first non-matching value in the list. | -real The list elements are to be compared as floating-point values. This option is only meaningful when used with -exact or -sorted. -regexp Pattern is treated as a regular expression and matched against each list element using the rules described in the re_syntax refer- ence page. -sorted The list elements are in sorted order. If this option is specified, lsearch will use a more efficient searching algorithm to search list. If no other options are specified, list is assumed to be sorted in increasing order, and to contain ASCII strings. This option is mutually exclusive with -glob and -regexp, and is treated exactly like -exact when either -all, or -not is specified. -start index The list is searched starting at position index. If index has the value end, it refers to the last element in the list, and | end-integer refers to the last element in the list minus the specified integer offset. If option is omitted then it defaults to -glob. If more than one of -exact, -glob, -regexp, and -sorted is specified, whichever option is specified last takes precedence. If more than one of -ascii, -dictionary, -integer and -real is specified, the option specified last takes precedence. If more than one of -increasing and -decreasing is specified, the option specified last takes precedence.
EXAMPLES
| lsearch {a b c d e} c => 2 | lsearch -all {a b c a b c} c => 2 5 | lsearch -inline {a20 b35 c47} b* => b35 | lsearch -inline -not {a20 b35 c47} b* => a20 | lsearch -all -inline -not {a20 b35 c47} b* => a20 c47 | lsearch -all -not {a20 b35 c47} b* => 0 2 | lsearch -start 3 {a b c a b c} c => 5 |
SEE ALSO
foreach(1T), list(1T), lappend(1T), lindex(1T), linsert(1T), llength(1T), lset(1T), lsort(1T), lrange(1T), lreplace(1T) |
KEYWORDS
list, match, pattern, regular expression, search, string
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWTcl | +--------------------+-----------------+ |Interface Stability | Uncommitted | +--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org. Tcl 8.4 lsearch(1T)

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