sh: Add UTF-8 support to pattern matching.
?, [...] patterns match codepoints instead of bytes. They do not match
invalid sequences. [...] patterns must not contain invalid sequences
otherwise they will not match anything. This is so that ${var#?} removes the
first codepoint, not the first byte, without putting UTF-8 knowledge into
the ${var#pattern} code. However, * continues to match any string and an
invalid sequence matches an identical invalid sequence. (This differs from
fnmatch(3).)
This commit is contained in:
Jilles Tjoelker
parent
ab0ffb4c88
commit
7cc6b3df80
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=221646
@ -52,6 +52,7 @@ __FBSDID("$FreeBSD$");
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <wchar.h>
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/*
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* Routines to expand arguments to commands. We have to deal with
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@ -111,16 +112,16 @@ static void addfname(char *);
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static struct strlist *expsort(struct strlist *);
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static struct strlist *msort(struct strlist *, int);
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static char *cvtnum(int, char *);
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static int collate_range_cmp(int, int);
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static int collate_range_cmp(wchar_t, wchar_t);
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static int
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collate_range_cmp(int c1, int c2)
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collate_range_cmp(wchar_t c1, wchar_t c2)
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{
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static char s1[2], s2[2];
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static wchar_t s1[2], s2[2];
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s1[0] = c1;
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s2[0] = c2;
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return (strcoll(s1, s2));
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return (wcscoll(s1, s2));
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}
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/*
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@ -1377,6 +1378,23 @@ msort(struct strlist *list, int len)
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static wchar_t
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get_wc(const char **p)
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{
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wchar_t c;
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int chrlen;
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chrlen = mbtowc(&c, *p, 4);
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if (chrlen == 0)
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return 0;
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else if (chrlen == -1)
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c = 0;
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else
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*p += chrlen;
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return c;
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}
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/*
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* Returns true if the pattern matches the string.
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*/
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@ -1386,6 +1404,7 @@ patmatch(const char *pattern, const char *string, int squoted)
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{
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const char *p, *q;
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char c;
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wchar_t wc, wc2;
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p = pattern;
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q = string;
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@ -1404,7 +1423,11 @@ patmatch(const char *pattern, const char *string, int squoted)
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case '?':
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if (squoted && *q == CTLESC)
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q++;
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if (*q++ == '\0')
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if (localeisutf8)
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wc = get_wc(&q);
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else
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wc = *q++;
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if (wc == '\0')
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return 0;
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break;
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case '*':
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@ -1434,7 +1457,7 @@ patmatch(const char *pattern, const char *string, int squoted)
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case '[': {
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const char *endp;
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int invert, found;
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char chr;
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wchar_t chr;
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endp = p;
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if (*endp == '!' || *endp == '^')
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@ -1455,8 +1478,11 @@ patmatch(const char *pattern, const char *string, int squoted)
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p++;
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}
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found = 0;
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chr = *q++;
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if (squoted && chr == CTLESC)
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if (squoted && *q == CTLESC)
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q++;
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if (localeisutf8)
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chr = get_wc(&q);
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else
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chr = *q++;
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if (chr == '\0')
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return 0;
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@ -1466,19 +1492,31 @@ patmatch(const char *pattern, const char *string, int squoted)
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continue;
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if (c == CTLESC)
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c = *p++;
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if (localeisutf8 && c & 0x80) {
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p--;
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wc = get_wc(&p);
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if (wc == 0) /* bad utf-8 */
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return 0;
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} else
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wc = c;
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if (*p == '-' && p[1] != ']') {
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p++;
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while (*p == CTLQUOTEMARK)
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p++;
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if (*p == CTLESC)
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p++;
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if ( collate_range_cmp(chr, c) >= 0
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&& collate_range_cmp(chr, *p) <= 0
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if (localeisutf8) {
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wc2 = get_wc(&p);
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if (wc2 == 0) /* bad utf-8 */
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return 0;
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} else
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wc2 = *p++;
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if ( collate_range_cmp(chr, wc) >= 0
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&& collate_range_cmp(chr, wc2) <= 0
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)
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found = 1;
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p++;
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} else {
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if (chr == c)
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if (chr == wc)
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found = 1;
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}
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} while ((c = *p++) != ']');
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57
tools/regression/bin/sh/builtins/case5.0
Normal file
57
tools/regression/bin/sh/builtins/case5.0
Normal file
@ -0,0 +1,57 @@
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# $FreeBSD$
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unset LC_ALL
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LC_CTYPE=en_US.UTF-8
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export LC_CTYPE
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c1=e
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# a umlaut
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c2=$(printf '\303\244')
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# euro sign
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c3=$(printf '\342\202\254')
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# some sort of 't' outside BMP
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c4=$(printf '\360\235\225\245')
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ok=0
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case $c1$c2$c3$c4 in
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*) ok=1 ;;
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esac
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if [ $ok = 0 ]; then
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echo wrong at $LINENO
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exit 3
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fi
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case $c1$c2$c3$c4 in
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$c1$c2$c3$c4) ;;
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*) echo wrong at $LINENO ;;
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esac
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case $c1$c2$c3$c4 in
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"$c1$c2$c3$c4") ;;
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*) echo wrong at $LINENO ;;
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esac
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case $c1$c2$c3$c4 in
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????) ;;
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*) echo wrong at $LINENO ;;
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esac
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case $c1.$c2.$c3.$c4 in
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?.?.?.?) ;;
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*) echo wrong at $LINENO ;;
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esac
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case $c1$c2$c3$c4 in
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[!a][!b][!c][!d]) ;;
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*) echo wrong at $LINENO ;;
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esac
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case $c1$c2$c3$c4 in
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[$c1][$c2][$c3][$c4]) ;;
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*) echo wrong at $LINENO ;;
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esac
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case $c1$c2$c3$c4 in
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["$c1"]["$c2"]["$c3"]["$c4"]) ;;
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*) echo wrong at $LINENO ;;
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esac
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75
tools/regression/bin/sh/expansion/trim8.0
Normal file
75
tools/regression/bin/sh/expansion/trim8.0
Normal file
@ -0,0 +1,75 @@
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# $FreeBSD$
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unset LC_ALL
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LC_CTYPE=en_US.UTF-8
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export LC_CTYPE
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c1=e
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# a umlaut
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c2=$(printf '\303\244')
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# euro sign
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c3=$(printf '\342\202\254')
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# some sort of 't' outside BMP
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c4=$(printf '\360\235\225\245')
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s=$c1$c2$c3$c4
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testcase() {
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code="$1"
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expected="$2"
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oIFS="$IFS"
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eval "$code"
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IFS='|'
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result="$#|$*"
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IFS="$oIFS"
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if [ "x$result" = "x$expected" ]; then
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ok=x$ok
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else
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failures=x$failures
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echo "For $code, expected $expected actual $result"
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fi
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}
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testcase 'set -- "$s"' "1|$s"
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testcase 'set -- "${s#$c2}"' "1|$s"
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testcase 'set -- "${s#*}"' "1|$s"
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testcase 'set -- "${s#$c1}"' "1|$c2$c3$c4"
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testcase 'set -- "${s#$c1$c2}"' "1|$c3$c4"
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testcase 'set -- "${s#$c1$c2$c3}"' "1|$c4"
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testcase 'set -- "${s#$c1$c2$c3$c4}"' "1|"
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testcase 'set -- "${s#?}"' "1|$c2$c3$c4"
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testcase 'set -- "${s#??}"' "1|$c3$c4"
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testcase 'set -- "${s#???}"' "1|$c4"
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testcase 'set -- "${s#????}"' "1|"
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testcase 'set -- "${s#*$c3}"' "1|$c4"
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testcase 'set -- "${s%$c4}"' "1|$c1$c2$c3"
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testcase 'set -- "${s%$c3$c4}"' "1|$c1$c2"
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testcase 'set -- "${s%$c2$c3$c4}"' "1|$c1"
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testcase 'set -- "${s%$c1$c2$c3$c4}"' "1|"
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testcase 'set -- "${s%?}"' "1|$c1$c2$c3"
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testcase 'set -- "${s%??}"' "1|$c1$c2"
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testcase 'set -- "${s%???}"' "1|$c1"
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testcase 'set -- "${s%????}"' "1|"
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testcase 'set -- "${s%$c2*}"' "1|$c1"
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testcase 'set -- "${s##$c2}"' "1|$s"
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testcase 'set -- "${s##*}"' "1|"
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testcase 'set -- "${s##$c1}"' "1|$c2$c3$c4"
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testcase 'set -- "${s##$c1$c2}"' "1|$c3$c4"
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testcase 'set -- "${s##$c1$c2$c3}"' "1|$c4"
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testcase 'set -- "${s##$c1$c2$c3$c4}"' "1|"
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testcase 'set -- "${s##?}"' "1|$c2$c3$c4"
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testcase 'set -- "${s##??}"' "1|$c3$c4"
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testcase 'set -- "${s##???}"' "1|$c4"
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testcase 'set -- "${s##????}"' "1|"
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testcase 'set -- "${s##*$c3}"' "1|$c4"
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testcase 'set -- "${s%%$c4}"' "1|$c1$c2$c3"
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testcase 'set -- "${s%%$c3$c4}"' "1|$c1$c2"
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testcase 'set -- "${s%%$c2$c3$c4}"' "1|$c1"
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testcase 'set -- "${s%%$c1$c2$c3$c4}"' "1|"
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testcase 'set -- "${s%%?}"' "1|$c1$c2$c3"
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testcase 'set -- "${s%%??}"' "1|$c1$c2"
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testcase 'set -- "${s%%???}"' "1|$c1"
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testcase 'set -- "${s%%????}"' "1|"
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testcase 'set -- "${s%%$c2*}"' "1|$c1"
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test "x$failures" = x
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