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Changes In Branch aspect-string-match Excluding Merge-Ins
This is equivalent to a diff from 2158eea530 to c84d53f778
2017-05-22
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11:07 | fix advancement of snext: could not cook up a test for this, but the error is clear Leaf check-in: c84d53f778 user: aspect tags: aspect-string-match | |
10:49 | retab Tcl_StringCaseMatch. Oops check-in: 34aca29ae4 user: aspect tags: aspect-string-match | |
2017-05-06
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00:36 | streamline StringCaseMatch with switch and comments. BEHAVIOUR CHANGE: incomplete bracket groups no... check-in: 5efe8a956f user: aspect tags: aspect-string-match | |
2017-05-01
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20:23 | [f9fe90d0fa] [file join] normalization. See filesystem-1.52* check-in: 650c12161a user: dgp tags: core-8-5-branch | |
2017-04-30
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05:34 | glob for hidden files on unix should not require stat() Leaf check-in: e83297c2af user: aspect tags: aspect-bug-391bc0fd2c | |
2017-04-28
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17:52 | [f34cf83dd0] An optimization was being taken in a case where it produced the wrong result, failing t... check-in: e015bfe72f user: dgp tags: core-8-6-branch | |
17:49 | [f34cf83dd0] An optimization was being taken in a case where it produced the wrong result, failing t... check-in: 2158eea530 user: dgp tags: core-8-5-branch | |
17:43 | Test for [f34cf83dd0]. check-in: f49a421a0d user: dgp tags: core-8-5-branch | |
Changes to generic/tclUtil.c.
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1914 1915 1916 1917 1918 1919 1920 | int Tcl_StringCaseMatch( CONST char *str, /* String. */ CONST char *pattern, /* Pattern, which may contain special * characters. */ int nocase) /* 0 for case sensitive, 1 for insensitive */ { | | | > > > | | < < < < < | | | > > | < < | > > > > > > > | < < < < < < | | | | < | < < < < < < | > > | > > | > > > > | | | | | | | < < < < < < < < < | < < < < < < | < | < | < < < > | | > > > | | | > | | | | | | > > > | > > > | > | > | > | | > > > > > > > > > | > > | | | < | | | < | < < < < | < | < | > | | < > | < | | | | | | | | | | < | > | < > | < < | | < < > | < < < > | | | | > > > | | | | | | | | | | < | | | > | | > | | > > | > | | | > > > > | | | < | | | | < > | < < < < < < | | | | | > | | > | < | | < | | | | < > | | < > | > | > > > > > > > > > > > > > | 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 | int Tcl_StringCaseMatch( CONST char *str, /* String. */ CONST char *pattern, /* Pattern, which may contain special * characters. */ int nocase) /* 0 for case sensitive, 1 for insensitive */ { int charLen; CONST char *pstart = pattern; Tcl_UniChar pch, sch; Tcl_UniChar startChar, endChar; CONST char *pnext = 0, *snext; while (1) { matchLoop: switch (*pattern) { case '\0': if (*str == '\0') { return 1; } else { goto matchFail; } case '?': if (*str == '\0') { goto matchFail; } else { str += TclUtfToUniChar(str, &sch); ++pattern; goto matchLoop; } case '*': /* * Skip past the '*', and any following '*'s */ while (*(++pattern) == '*') {} /* * If the pattern ends after '*', we have a match */ if (*pattern == '\0') { return 1; } /* * Peek at the next pattern char */ if (UCHAR(*pattern) < 0x80) { pch = (Tcl_UniChar) (nocase ? tolower(UCHAR(*pattern)) : UCHAR(*pattern)); } else { TclUtfToUniChar(pattern, &pch); if (nocase) { pch = Tcl_UniCharToLower(pch); } } /* * If the next char in pattern is a literal, zoom through str to the next match */ switch (*pattern) { case '[': case '?': case '\\': break; default: while (*str) { charLen = TclUtfToUniChar(str, &sch); if ( (pch == sch) || (nocase && (pch == Tcl_UniCharToLower(sch)))) { break; } str += charLen; } } /* * Avoid recursion, using technique described at https://research.swtch.com/glob * * `pnext` stores the first pattern char following a (sequence of) '*'. * `snext` stores the current match position - on resume at matchFail it * will need to be incremented. */ pnext = pattern - 1; snext = str; goto matchLoop; case '[': ++pattern; /* * Take the next char from input string to match * against '[]' group */ if(UCHAR(*str) < 0x80) { sch = (Tcl_UniChar) (nocase ? tolower(UCHAR(*str)) : UCHAR(*str)); ++str; } else { str += TclUtfToUniChar(str, &sch); if (nocase) { sch = Tcl_UniCharToLower(sch); } } /* * '[]' group loop: process single chars and a-z ranges */ while (1) { if (*pattern == ']') { /* * End of [] range with no match - fail! */ goto matchFail; } if (*pattern == '\0') { return 0; /* Illegal pattern! (incomplete [..) */ } if (UCHAR(*pattern) < 0x80) { pch = (Tcl_UniChar) (nocase ? tolower(UCHAR(*pattern)) : UCHAR(*pattern)); ++pattern; } else { pattern += TclUtfToUniChar(pattern, &pch); if (nocase) { pch = Tcl_UniCharToLower(pch); } } if (*pattern != '-') { /* * Try to match a single char in '[]' group */ if (pch == sch) break; continue; } else { /* * Start of a 'a-z' style range. */ ++pattern; if (*pattern == '\0') { return 0; /* Illegal pattern! (incomplete [..) */ } // if (*pattern == ']') { // return 0; /* Illegal pattern! (incomplete [a-]) */ // } if (UCHAR(*pattern) < 0x80) { pch = (Tcl_UniChar) (nocase ? tolower(UCHAR(*pattern)) : UCHAR(*pattern)); ++pattern; } else { pattern += TclUtfToUniChar(pattern, &pch); if (nocase) { pch = Tcl_UniCharToLower(pch); } } endChar = pch; /* * We have a range ('a-z' inside '[]') with * startChar, endChar as the endpoints. */ if (((startChar <= sch) && (sch <= endChar)) || ((endChar <= sch) && (sch <= startChar))) { break; } /* * No match with this character or range. Carry * on with the next part of '[]' */ continue; } } /* * If we get here, a [] group has successfully matched. *pattern * is still inside the brackets, so advance past next ']' */ while (*pattern != ']') { if (*pattern == '\0') { return 0; /* Illegal pattern! (incomplete [..) */ } pattern++; } pattern++; goto matchLoop; case '\\': ++pattern; if (*pattern == '\0') { return 0; /* Illegal pattern! (lone \ at end) */ } goto matchLiteral; default: matchLiteral: /* * Try to match a literal character in pattern */ str += TclUtfToUniChar(str, &sch); pattern += TclUtfToUniChar(pattern, &pch); if (nocase) { if (Tcl_UniCharToLower(sch) != Tcl_UniCharToLower(pch)) { goto matchFail; } } else if (sch != pch) { goto matchFail; } goto matchLoop; } } matchFail: if (pnext != 0) { /* * Backtrack to position following last '*' in `pattern`. * `snext` points to where we last tried to match, so advance * it first. */ pattern = pnext; str = snext + TclUtfToUniChar(snext, &sch); if (*str) goto matchLoop; } return 0; } /* *---------------------------------------------------------------------- * * TclByteArrayMatch -- * |
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