glts wrote:
> Hi,
>
> The new regexp engine seems unable to deal with combining characters.
> This is on Vim 7.4.9. Steps to reproduce:
>
> :put =\"ca\u0300t\"
> :echo getline('.') =~ '\%#=0a'
> :echo getline('.') =~ '\%#=1a'
>
> Only the old regexp engine finds the match.
>
> Best,
It might be related to the TODO comments in regexp_nfa.c
at lines 1135 and 3161:
1117 case 'U': /* %U1234abcd hex 8 */
1118 {
1119 int nr;
1120
1121 switch (c)
1122 {
1123 case 'd': nr = getdecchrs(); break;
1124 case 'o': nr = getoctchrs(); break;
1125 case 'x': nr = gethexchrs(2); break;
1126 case 'u': nr = gethexchrs(4); break;
1127 case 'U': nr = gethexchrs(8); break;
1128 default: nr = -1; break;
1129 }
1130
1131 if (nr < 0)
1132 EMSG2_RET_FAIL(
1133 _("E678: Invalid character after
%s%%[dxouU]"),
1134 reg_magic == MAGIC_ALL);
!1135 /* TODO: what if a composing character follows? */
1136 EMIT(nr);
1137 }
...
3158 #ifdef FEAT_MBYTE
3159 case NFA_COMPOSING: /* char with composing char */
3160 #if 0
!3161 /* TODO */
3162 if (regflags & RF_ICOMBINE)
3163 {
3164 /* use the base character only */
3165 }
3166 #endif
....
Regards
Dominique
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