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add fl_filename_match comments as per STR3186

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add Notes: section to fl_filename_match documentation
explaining case-sensitivity [or not] and use of \x

see also https://www.fltk.org/str.php?L3186
This commit is contained in:
Duncan Gibson 2020-07-25 10:44:24 +02:00 committed by Albrecht Schlosser
parent 29a56f87e3
commit 6d78015071
1 changed files with 9 additions and 2 deletions
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11
src/filename_match.cxx
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@ -1,7 +1,7 @@
// //
// Pattern matching routines for the Fast Light Tool Kit (FLTK). // Pattern matching routines for the Fast Light Tool Kit (FLTK).
// //
// Copyright 1998-2010 by Bill Spitzak and others. // Copyright 1998-2020 by Bill Spitzak and others.
// //
// This library is free software. Distribution and use rights are outlined in // This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this // the file "COPYING" which should have been included with this file. If this
@ -28,7 +28,14 @@
- [^set] or [!set] matches any character not in the set. - [^set] or [!set] matches any character not in the set.
- {X|Y|Z} or {X,Y,Z} matches any one of the subexpressions literally. - {X|Y|Z} or {X,Y,Z} matches any one of the subexpressions literally.
- \\x quotes the character x so it has no special meaning. - \\x quotes the character x so it has no special meaning.
- x all other characters must be matched exactly. - x all other characters are matched "exactly" on a \b case-insensitive basis.
Notes:
- \p s and \p p are matched on a char/byte basis, not as UCS codepoints or UTF-8 sequences.
- [set] ranges must run from low to high, i.e. [a-z] and not [z-a]
- [set] comparison is \b case-sensitive, i.e. [a-z] won't match "A".
- \\x only applies to the fl_filename_match special characters * ? [ {
- \\x needs a double \\ or the compiler will complain about non-standard escape sequences.
\b Include: \b Include:
\code \code