diff options
Diffstat (limited to 'generic/tclUtf.c')
-rw-r--r-- | generic/tclUtf.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/generic/tclUtf.c b/generic/tclUtf.c index 83900e9..9dacb53 100644 --- a/generic/tclUtf.c +++ b/generic/tclUtf.c @@ -1101,6 +1101,33 @@ Tcl_UtfNcasecmp( } return 0; } + + +/* Replacement for strcasecmp in Tcl core, in places where UTF-8 should be handled. */ +int +TclUtfCasecmp( + CONST char *cs, /* UTF string to compare to ct. */ + CONST char *ct) /* UTF string cs is compared to. */ +{ + Tcl_UniChar ch1, ch2; + char c; + + do { + + /* If c == '\0', loop should end. */ + c = *cs; + + cs += TclUtfToUniChar(cs, &ch1); + ct += TclUtfToUniChar(ct, &ch2); + if (ch1 != ch2) { + ch1 = Tcl_UniCharToLower(ch1); + ch2 = Tcl_UniCharToLower(ch2); + if (ch1 != ch2) break; + } + } while (c); + return (ch1 - ch2); +} + /* *---------------------------------------------------------------------- |