Summary

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	File:     lastc.icn

	Subject:  Procedures for string scanning

	Author:   David A. Gamey

	Date:     May 2, 2001

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   This file is in the public domain.

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     Descriptions:

     lastc( c, s, i1, i2 ) : i3

        succeeds and produces i1, provided either
        -  i1 is 1, or
        -  s[i1 - 1] is in c and i2 is greater than i1

        defaults:   same as for any
        errors:     same as for any

     findp( c, s1, s2, i1, i2 ) : i3, i4, ..., in

        generates the sequence of positions in s2 at which s1 occurs
        provided that: 
        -  s2 is preceded by a character in c,
           or is found at the begining of the string
        i1 & i2 limit the search as in find

        defaults:   same as for find
        errors:     same as for find & lastc

     findw( c1, s1, c2, s2, i1, i2 ) : i3, i4, ..., in

        generates the sequence of positions in s2 at which s1 occurs
        provided that:
        -  s2 is preceded by a character in c1, 
           or is found at the beginning of the string; 
        and
        -  s2 is succeeded by a character in c2,
           or the end of the string
        i1 & i2 limit the search as in find

        defaults:   same as for find
        errors:     same as for find & lastc

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This file is part of the (main) package.

findp(c, s1, s2, i1, i2)

findw(c1, s1, c2, s2, i1, i2)

lastc(c, s, i1, i2)