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patch 8.0.0519: character classes are not well tested

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Problem:    Character classes are not well tested. They can differ between
            platforms.
Solution:   Add tests.  In the documentation make clear which classes depend
            on what library function.  Only use :cntrl: and :graph: for ASCII.
            (Kazunobu Kuriyama, Dominique Pelle, closes #1560)
            Update the documentation.
This commit is contained in:
Bram Moolenaar
2017-03-29 15:31:20 +02:00
parent c6cd8409c2
commit 0c078fc7db
5 changed files with 91 additions and 33 deletions
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4
src/regexp_nfa.c
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@@ -4871,7 +4871,7 @@ check_char_class(int class, int c)
return OK;
break;
case NFA_CLASS_CNTRL:
if (c >= 1 && c <= 255 && iscntrl(c))
if (c >= 1 && c <= 127 && iscntrl(c))
return OK;
break;
case NFA_CLASS_DIGIT:
@@ -4879,7 +4879,7 @@ check_char_class(int class, int c)
return OK;
break;
case NFA_CLASS_GRAPH:
if (c >= 1 && c <= 255 && isgraph(c))
if (c >= 1 && c <= 127 && isgraph(c))
return OK;
break;
case NFA_CLASS_LOWER: