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(* StrLib.def provides string manipulation procedures.
Copyright (C) 2001-2025 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. *)
DEFINITION MODULE StrLib ;
EXPORT QUALIFIED StrConCat, StrLen, StrCopy, StrEqual, StrLess,
IsSubString, StrRemoveWhitePrefix ;
(*
StrConCat - combines a and b into c.
*)
PROCEDURE StrConCat (a, b: ARRAY OF CHAR; VAR c: ARRAY OF CHAR) ;
(*
StrLess - returns TRUE if string, a, alphabetically occurs before
string, b.
*)
PROCEDURE StrLess (a, b: ARRAY OF CHAR) : BOOLEAN ;
(*
StrEqual - performs a = b on two strings.
*)
PROCEDURE StrEqual (a, b: ARRAY OF CHAR) : BOOLEAN ;
(*
StrLen - returns the length of string, a.
*)
PROCEDURE StrLen (a: ARRAY OF CHAR) : CARDINAL ;
(*
StrCopy - copy string src into string dest providing dest is large enough.
If dest is smaller than a then src then the string is truncated when
dest is full. Add a nul character if there is room in dest.
*)
PROCEDURE StrCopy (src: ARRAY OF CHAR ; VAR dest: ARRAY OF CHAR) ;
(*
IsSubString - returns true if b is a subcomponent of a.
*)
PROCEDURE IsSubString (a, b: ARRAY OF CHAR) : BOOLEAN ;
(*
StrRemoveWhitePrefix - copies string, into string, b, excluding any white
space infront of a.
*)
PROCEDURE StrRemoveWhitePrefix (a: ARRAY OF CHAR; VAR b: ARRAY OF CHAR) ;
END StrLib.
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