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Flags setting moved to the API

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pull/15/head
Sergey Lyubka 10 years ago
parent dfc6c21b5b
commit 1c59641398
3 changed files with 139 additions and 138 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 19
      slre.c
  2. 7
      slre.h
  3. 251
      unit_test.c

19
slre.c
Unescape View File

@ -66,10 +66,9 @@ struct regex_info {
struct slre_cap *caps;
int num_caps;
/* E.g. IGNORE_CASE. See enum below */
/* E.g. SLRE_IGNORE_CASE. See enum below */
int flags;
};
enum { IGNORE_CASE = 1 };
static int is_metacharacter(const unsigned char *s) {
static const char *metacharacters = "^$().[]*+?|\\Ssd";
@ -147,7 +146,7 @@ static int match_op(const unsigned char *re, const unsigned char *s,
case '.': result++; break;
default:
if (info->flags & IGNORE_CASE) {
if (info->flags & SLRE_IGNORE_CASE) {
FAIL_IF(tolower(*re) != tolower(*s), SLRE_NO_MATCH);
} else {
FAIL_IF(*re != *s, SLRE_NO_MATCH);
@ -169,7 +168,7 @@ static int match_set(const char *re, int re_len, const char *s,
/* Support character range */
if (re[len] != '-' && re[len + 1] == '-' && re[len + 2] != ']' &&
re[len + 2] != '\0') {
result = info->flags && IGNORE_CASE ?
result = info->flags && SLRE_IGNORE_CASE ?
*s >= re[len] && *s <= re[len + 2] :
tolower(*s) >= tolower(re[len]) && tolower(*s) <= tolower(re[len + 2]);
len += 3;
@ -422,21 +421,15 @@ static int foo(const char *re, int re_len, const char *s, int s_len,
}
int slre_match(const char *regexp, const char *s, int s_len,
struct slre_cap *caps, int num_caps) {
struct slre_cap *caps, int num_caps, int flags) {
struct regex_info info;
/* Initialize info structure */
info.flags = info.num_brackets = info.num_branches = 0;
info.flags = flags;
info.num_brackets = info.num_branches = 0;
info.num_caps = num_caps;
info.caps = caps;
DBG(("========================> [%s] [%.*s]\n", regexp, s_len, s));
/* Handle regexp flags. At the moment, only 'i' is supported */
if (memcmp(regexp, "(?i)", 4) == 0) {
info.flags |= IGNORE_CASE;
regexp += 4;
}
return foo(regexp, strlen(regexp), s, s_len, &info);
}

7
slre.h
Unescape View File

@ -34,8 +34,13 @@ struct slre_cap {
int len;
};
int slre_match(const char *regexp, const char *buf, int buf_len,
struct slre_cap *caps, int num_caps);
struct slre_cap *caps, int num_caps, int flags);
/* Possible flags for slre_match() */
enum { SLRE_IGNORE_CASE = 1 };
/* slre_match() failure codes */
#define SLRE_NO_MATCH -1

251
unit_test.c
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@ -26,7 +26,7 @@ static char *slre_replace(const char *regex, const char *buf,
do {
s_len = s == NULL ? 0 : strlen(s);
if ((n = slre_match(regex, buf, len, &cap, 1)) > 0) {
if ((n = slre_match(regex, buf, len, &cap, 1, 0)) > 0) {
n1 = cap.ptr - buf, n2 = strlen(sub),
n3 = &buf[n] - &cap.ptr[cap.len];
} else {
@ -49,163 +49,166 @@ int main(void) {
struct slre_cap caps[10];
/* Metacharacters */
ASSERT(slre_match("$", "abcd", 4, NULL, 0) == 4);
ASSERT(slre_match("^", "abcd", 4, NULL, 0) == 0);
ASSERT(slre_match("x|^", "abcd", 4, NULL, 0) == 0);
ASSERT(slre_match("x|$", "abcd", 4, NULL, 0) == 4);
ASSERT(slre_match("x", "abcd", 4, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match(".", "abcd", 4, NULL, 0) == 1);
ASSERT(slre_match("(?i)^.*\\\\.*$", "c:\\Tools", 8, NULL, 0) == 8);
ASSERT(slre_match("\\", "a", 1, NULL, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("\\x", "a", 1, NULL, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("\\x1", "a", 1, NULL, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("\\x20", " ", 1, NULL, 0) == 1);
ASSERT(slre_match("$", "abcd", 4, NULL, 0, 0) == 4);
ASSERT(slre_match("^", "abcd", 4, NULL, 0, 0) == 0);
ASSERT(slre_match("x|^", "abcd", 4, NULL, 0, 0) == 0);
ASSERT(slre_match("x|$", "abcd", 4, NULL, 0, 0) == 4);
ASSERT(slre_match("x", "abcd", 4, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match(".", "abcd", 4, NULL, 0, 0) == 1);
ASSERT(slre_match("^.*\\\\.*$", "c:\\Tools", 8, NULL, 0, SLRE_IGNORE_CASE)
== 8);
ASSERT(slre_match("\\", "a", 1, NULL, 0, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("\\x", "a", 1, NULL, 0, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("\\x1", "a", 1, NULL, 0, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("\\x20", " ", 1, NULL, 0, 0) == 1);
ASSERT(slre_match("^.+$", "", 0, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("^(.+)$", "", 0, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("(?i)^([\\+-]?)([\\d]+)$", "+", 1,
caps, 10) == SLRE_NO_MATCH);
ASSERT(slre_match("(?i)^([\\+-]?)([\\d]+)$", "+27", 3,
caps, 10) == 3);
ASSERT(slre_match("^.+$", "", 0, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("^(.+)$", "", 0, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("^([\\+-]?)([\\d]+)$", "+", 1,
caps, 10, SLRE_IGNORE_CASE) == SLRE_NO_MATCH);
ASSERT(slre_match("^([\\+-]?)([\\d]+)$", "+27", 3,
caps, 10, SLRE_IGNORE_CASE) == 3);
ASSERT(caps[0].len == 1);
ASSERT(caps[0].ptr[0] == '+');
ASSERT(caps[1].len == 2);
ASSERT(memcmp(caps[1].ptr, "27", 2) == 0);
ASSERT(slre_match("tel:\\+(\\d+[\\d-]+\\d)",
"tel:+1-201-555-0123;a=b", 23, caps, 10) == 19);
"tel:+1-201-555-0123;a=b", 23, caps, 10, 0) == 19);
ASSERT(caps[0].len == 14);
ASSERT(memcmp(caps[0].ptr, "1-201-555-0123", 14) == 0);
/* Character sets */
ASSERT(slre_match("[abc]", "1c2", 3, NULL, 0) == 2);
ASSERT(slre_match("[abc]", "1C2", 3, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("(?i)[abc]", "1C2", 3, NULL, 0) == 2);
ASSERT(slre_match("[.2]", "1C2", 3, NULL, 0) == 1);
ASSERT(slre_match("[\\S]+", "ab cd", 5, NULL, 0) == 2);
ASSERT(slre_match("[\\S]+\\s+[tyc]*", "ab cd", 5, NULL, 0) == 4);
ASSERT(slre_match("[\\d]", "ab cd", 5, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("[^\\d]", "ab cd", 5, NULL, 0) == 1);
ASSERT(slre_match("[^\\d]+", "abc123", 6, NULL, 0) == 3);
ASSERT(slre_match("[1-5]+", "123456789", 9, NULL, 0) == 5);
ASSERT(slre_match("[1-5a-c]+", "123abcdef", 9, NULL, 0) == 6);
ASSERT(slre_match("[1-5a-]+", "123abcdef", 9, NULL, 0) == 4);
ASSERT(slre_match("[1-5a-]+", "123a--2oo", 9, NULL, 0) == 7);
ASSERT(slre_match("[htps]+://", "https://", 8, NULL, 0) == 8);
ASSERT(slre_match("[^\\s]+", "abc def", 7, NULL, 0) == 3);
ASSERT(slre_match("[^fc]+", "abc def", 7, NULL, 0) == 2);
ASSERT(slre_match("[^d\\sf]+", "abc def", 7, NULL, 0) == 3);
ASSERT(slre_match("[abc]", "1c2", 3, NULL, 0, 0) == 2);
ASSERT(slre_match("[abc]", "1C2", 3, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("[abc]", "1C2", 3, NULL, 0, SLRE_IGNORE_CASE) == 2);
ASSERT(slre_match("[.2]", "1C2", 3, NULL, 0, 0) == 1);
ASSERT(slre_match("[\\S]+", "ab cd", 5, NULL, 0, 0) == 2);
ASSERT(slre_match("[\\S]+\\s+[tyc]*", "ab cd", 5, NULL, 0, 0) == 4);
ASSERT(slre_match("[\\d]", "ab cd", 5, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("[^\\d]", "ab cd", 5, NULL, 0, 0) == 1);
ASSERT(slre_match("[^\\d]+", "abc123", 6, NULL, 0, 0) == 3);
ASSERT(slre_match("[1-5]+", "123456789", 9, NULL, 0, 0) == 5);
ASSERT(slre_match("[1-5a-c]+", "123abcdef", 9, NULL, 0, 0) == 6);
ASSERT(slre_match("[1-5a-]+", "123abcdef", 9, NULL, 0, 0) == 4);
ASSERT(slre_match("[1-5a-]+", "123a--2oo", 9, NULL, 0, 0) == 7);
ASSERT(slre_match("[htps]+://", "https://", 8, NULL, 0, 0) == 8);
ASSERT(slre_match("[^\\s]+", "abc def", 7, NULL, 0, 0) == 3);
ASSERT(slre_match("[^fc]+", "abc def", 7, NULL, 0, 0) == 2);
ASSERT(slre_match("[^d\\sf]+", "abc def", 7, NULL, 0, 0) == 3);
/* Flags - case sensitivity */
ASSERT(slre_match("FO", "foo", 3, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("(?i)FO", "foo", 3, NULL, 0) == 2);
ASSERT(slre_match("(?m)FO", "foo", 3, NULL, 0) == SLRE_UNEXPECTED_QUANTIFIER);
ASSERT(slre_match("(?m)x", "foo", 3, NULL, 0) == SLRE_UNEXPECTED_QUANTIFIER);
ASSERT(slre_match("FO", "foo", 3, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("FO", "foo", 3, NULL, 0, SLRE_IGNORE_CASE) == 2);
ASSERT(slre_match("(?m)FO", "foo", 3, NULL, 0, 0) ==
SLRE_UNEXPECTED_QUANTIFIER);
ASSERT(slre_match("(?m)x", "foo", 3, NULL, 0, 0) ==
SLRE_UNEXPECTED_QUANTIFIER);
ASSERT(slre_match("fo", "foo", 3, NULL, 0) == 2);
ASSERT(slre_match(".+", "foo", 3, NULL, 0) == 3);
ASSERT(slre_match(".+k", "fooklmn", 7, NULL, 0) == 4);
ASSERT(slre_match(".+k.", "fooklmn", 7, NULL, 0) == 5);
ASSERT(slre_match("p+", "fooklmn", 7, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("ok", "fooklmn", 7, NULL, 0) == 4);
ASSERT(slre_match("lmno", "fooklmn", 7, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("mn.", "fooklmn", 7, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("o", "fooklmn", 7, NULL, 0) == 2);
ASSERT(slre_match("^o", "fooklmn", 7, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("^", "fooklmn", 7, NULL, 0) == 0);
ASSERT(slre_match("n$", "fooklmn", 7, NULL, 0) == 7);
ASSERT(slre_match("n$k", "fooklmn", 7, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("l$", "fooklmn", 7, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match(".$", "fooklmn", 7, NULL, 0) == 7);
ASSERT(slre_match("a?", "fooklmn", 7, NULL, 0) == 0);
ASSERT(slre_match("^a*CONTROL", "CONTROL", 7, NULL, 0) == 7);
ASSERT(slre_match("^[a]*CONTROL", "CONTROL", 7, NULL, 0) == 7);
ASSERT(slre_match("^(a*)CONTROL", "CONTROL", 7, NULL, 0) == 7);
ASSERT(slre_match("^(a*)?CONTROL", "CONTROL", 7, NULL, 0) == 7);
ASSERT(slre_match("fo", "foo", 3, NULL, 0, 0) == 2);
ASSERT(slre_match(".+", "foo", 3, NULL, 0, 0) == 3);
ASSERT(slre_match(".+k", "fooklmn", 7, NULL, 0, 0) == 4);
ASSERT(slre_match(".+k.", "fooklmn", 7, NULL, 0, 0) == 5);
ASSERT(slre_match("p+", "fooklmn", 7, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("ok", "fooklmn", 7, NULL, 0, 0) == 4);
ASSERT(slre_match("lmno", "fooklmn", 7, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("mn.", "fooklmn", 7, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("o", "fooklmn", 7, NULL, 0, 0) == 2);
ASSERT(slre_match("^o", "fooklmn", 7, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("^", "fooklmn", 7, NULL, 0, 0) == 0);
ASSERT(slre_match("n$", "fooklmn", 7, NULL, 0, 0) == 7);
ASSERT(slre_match("n$k", "fooklmn", 7, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("l$", "fooklmn", 7, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match(".$", "fooklmn", 7, NULL, 0, 0) == 7);
ASSERT(slre_match("a?", "fooklmn", 7, NULL, 0, 0) == 0);
ASSERT(slre_match("^a*CONTROL", "CONTROL", 7, NULL, 0, 0) == 7);
ASSERT(slre_match("^[a]*CONTROL", "CONTROL", 7, NULL, 0, 0) == 7);
ASSERT(slre_match("^(a*)CONTROL", "CONTROL", 7, NULL, 0, 0) == 7);
ASSERT(slre_match("^(a*)?CONTROL", "CONTROL", 7, NULL, 0, 0) == 7);
ASSERT(slre_match("\\_", "abc", 3, NULL, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("+", "fooklmn", 7, NULL, 0) == SLRE_UNEXPECTED_QUANTIFIER);
ASSERT(slre_match("()+", "fooklmn", 7, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("\\x", "12", 2, NULL, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("\\xhi", "12", 2, NULL, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("\\x20", "_ J", 3, NULL, 0) == 2);
ASSERT(slre_match("\\x4A", "_ J", 3, NULL, 0) == 3);
ASSERT(slre_match("\\d+", "abc123def", 9, NULL, 0) == 6);
ASSERT(slre_match("\\_", "abc", 3, NULL, 0, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("+", "fooklmn", 7, NULL, 0, 0) == SLRE_UNEXPECTED_QUANTIFIER);
ASSERT(slre_match("()+", "fooklmn", 7, NULL, 0, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("\\x", "12", 2, NULL, 0, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("\\xhi", "12", 2, NULL, 0, 0) == SLRE_INVALID_METACHARACTER);
ASSERT(slre_match("\\x20", "_ J", 3, NULL, 0, 0) == 2);
ASSERT(slre_match("\\x4A", "_ J", 3, NULL, 0, 0) == 3);
ASSERT(slre_match("\\d+", "abc123def", 9, NULL, 0, 0) == 6);
/* Balancing brackets */
ASSERT(slre_match("(x))", "fooklmn", 7, NULL, 0) == SLRE_UNBALANCED_BRACKETS);
ASSERT(slre_match("(", "fooklmn", 7, NULL, 0) == SLRE_UNBALANCED_BRACKETS);
ASSERT(slre_match("(x))", "fooklmn", 7, NULL, 0, 0) == SLRE_UNBALANCED_BRACKETS);
ASSERT(slre_match("(", "fooklmn", 7, NULL, 0, 0) == SLRE_UNBALANCED_BRACKETS);
ASSERT(slre_match("klz?mn", "fooklmn", 7, NULL, 0) == 7);
ASSERT(slre_match("fa?b", "fooklmn", 7, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("klz?mn", "fooklmn", 7, NULL, 0, 0) == 7);
ASSERT(slre_match("fa?b", "fooklmn", 7, NULL, 0, 0) == SLRE_NO_MATCH);
/* Brackets & capturing */
ASSERT(slre_match("^(te)", "tenacity subdues all", 20, caps, 10) == 2);
ASSERT(slre_match("(bc)", "abcdef", 6, caps, 10) == 3);
ASSERT(slre_match(".(d.)", "abcdef", 6, caps, 10) == 5);
ASSERT(slre_match(".(d.)\\)?", "abcdef", 6, caps, 10) == 5);
ASSERT(slre_match("^(te)", "tenacity subdues all", 20, caps, 10, 0) == 2);
ASSERT(slre_match("(bc)", "abcdef", 6, caps, 10, 0) == 3);
ASSERT(slre_match(".(d.)", "abcdef", 6, caps, 10, 0) == 5);
ASSERT(slre_match(".(d.)\\)?", "abcdef", 6, caps, 10, 0) == 5);
ASSERT(caps[0].len == 2);
ASSERT(memcmp(caps[0].ptr, "de", 2) == 0);
ASSERT(slre_match("(.+)", "123", 3, caps, 10) == 3);
ASSERT(slre_match("(2.+)", "123", 3, caps, 10) == 3);
ASSERT(slre_match("(.+)", "123", 3, caps, 10, 0) == 3);
ASSERT(slre_match("(2.+)", "123", 3, caps, 10, 0) == 3);
ASSERT(caps[0].len == 2);
ASSERT(memcmp(caps[0].ptr, "23", 2) == 0);
ASSERT(slre_match("(.+2)", "123", 3, caps, 10) == 2);
ASSERT(slre_match("(.+2)", "123", 3, caps, 10, 0) == 2);
ASSERT(caps[0].len == 2);
ASSERT(memcmp(caps[0].ptr, "12", 2) == 0);
ASSERT(slre_match("(.*(2.))", "123", 3, caps, 10) == 3);
ASSERT(slre_match("(.)(.)", "123", 3, caps, 10) == 2);
ASSERT(slre_match("(\\d+)\\s+(\\S+)", "12 hi", 5, caps, 10) == 5);
ASSERT(slre_match("ab(cd)+ef", "abcdcdef", 8, NULL, 0) == 8);
ASSERT(slre_match("ab(cd)*ef", "abcdcdef", 8, NULL, 0) == 8);
ASSERT(slre_match("ab(cd)+?ef", "abcdcdef", 8, NULL, 0) == 8);
ASSERT(slre_match("ab(cd)+?.", "abcdcdef", 8, NULL, 0) == 5);
ASSERT(slre_match("ab(cd)?", "abcdcdef", 8, NULL, 0) == 4);
ASSERT(slre_match("a(b)(cd)", "abcdcdef", 8, caps, 1) ==
ASSERT(slre_match("(.*(2.))", "123", 3, caps, 10, 0) == 3);
ASSERT(slre_match("(.)(.)", "123", 3, caps, 10, 0) == 2);
ASSERT(slre_match("(\\d+)\\s+(\\S+)", "12 hi", 5, caps, 10, 0) == 5);
ASSERT(slre_match("ab(cd)+ef", "abcdcdef", 8, NULL, 0, 0) == 8);
ASSERT(slre_match("ab(cd)*ef", "abcdcdef", 8, NULL, 0, 0) == 8);
ASSERT(slre_match("ab(cd)+?ef", "abcdcdef", 8, NULL, 0, 0) == 8);
ASSERT(slre_match("ab(cd)+?.", "abcdcdef", 8, NULL, 0, 0) == 5);
ASSERT(slre_match("ab(cd)?", "abcdcdef", 8, NULL, 0, 0) == 4);
ASSERT(slre_match("a(b)(cd)", "abcdcdef", 8, caps, 1, 0) ==
SLRE_CAPS_ARRAY_TOO_SMALL);
ASSERT(slre_match("(.+/\\d+\\.\\d+)\\.jpg$", "/foo/bar/12.34.jpg", 18,
caps, 1) == 18);
ASSERT(slre_match("(ab|cd).*\\.(xx|yy)", "ab.yy", 5, NULL, 0) == 5);
ASSERT(slre_match(".*a", "abcdef", 6, NULL, 0) == 1);
ASSERT(slre_match("(.+)c", "abcdef", 6, NULL, 0) == 3);
caps, 1, 0) == 18);
ASSERT(slre_match("(ab|cd).*\\.(xx|yy)", "ab.yy", 5, NULL, 0, 0) == 5);
ASSERT(slre_match(".*a", "abcdef", 6, NULL, 0, 0) == 1);
ASSERT(slre_match("(.+)c", "abcdef", 6, NULL, 0, 0) == 3);
/* Greedy vs non-greedy */
ASSERT(slre_match(".+c", "abcabc", 6, NULL, 0) == 6);
ASSERT(slre_match(".+?c", "abcabc", 6, NULL, 0) == 3);
ASSERT(slre_match(".*?c", "abcabc", 6, NULL, 0) == 3);
ASSERT(slre_match(".*c", "abcabc", 6, NULL, 0) == 6);
ASSERT(slre_match("bc.d?k?b+", "abcabc", 6, NULL, 0) == 5);
ASSERT(slre_match(".+c", "abcabc", 6, NULL, 0, 0) == 6);
ASSERT(slre_match(".+?c", "abcabc", 6, NULL, 0, 0) == 3);
ASSERT(slre_match(".*?c", "abcabc", 6, NULL, 0, 0) == 3);
ASSERT(slre_match(".*c", "abcabc", 6, NULL, 0, 0) == 6);
ASSERT(slre_match("bc.d?k?b+", "abcabc", 6, NULL, 0, 0) == 5);
/* Branching */
ASSERT(slre_match("|", "abc", 3, NULL, 0) == 0);
ASSERT(slre_match("|.", "abc", 3, NULL, 0) == 1);
ASSERT(slre_match("x|y|b", "abc", 3, NULL, 0) == 2);
ASSERT(slre_match("k(xx|yy)|ca", "abcabc", 6, NULL, 0) == 4);
ASSERT(slre_match("k(xx|yy)|ca|bc", "abcabc", 6, NULL, 0) == 3);
ASSERT(slre_match("(|.c)", "abc", 3, caps, 10) == 3);
ASSERT(slre_match("|", "abc", 3, NULL, 0, 0) == 0);
ASSERT(slre_match("|.", "abc", 3, NULL, 0, 0) == 1);
ASSERT(slre_match("x|y|b", "abc", 3, NULL, 0, 0) == 2);
ASSERT(slre_match("k(xx|yy)|ca", "abcabc", 6, NULL, 0, 0) == 4);
ASSERT(slre_match("k(xx|yy)|ca|bc", "abcabc", 6, NULL, 0, 0) == 3);
ASSERT(slre_match("(|.c)", "abc", 3, caps, 10, 0) == 3);
ASSERT(caps[0].len == 2);
ASSERT(memcmp(caps[0].ptr, "bc", 2) == 0);
ASSERT(slre_match("a|b|c", "a", 1, NULL, 0) == 1);
ASSERT(slre_match("a|b|c", "b", 1, NULL, 0) == 1);
ASSERT(slre_match("a|b|c", "c", 1, NULL, 0) == 1);
ASSERT(slre_match("a|b|c", "d", 1, NULL, 0) == SLRE_NO_MATCH);
ASSERT(slre_match("a|b|c", "a", 1, NULL, 0, 0) == 1);
ASSERT(slre_match("a|b|c", "b", 1, NULL, 0, 0) == 1);
ASSERT(slre_match("a|b|c", "c", 1, NULL, 0, 0) == 1);
ASSERT(slre_match("a|b|c", "d", 1, NULL, 0, 0) == SLRE_NO_MATCH);
/* Optional match at the end of the string */
ASSERT(slre_match("^.*c.?$", "abc", 3, NULL, 0) == 3);
ASSERT(slre_match("(?i)^.*C.?$", "abc", 3, NULL, 0) == 3);
ASSERT(slre_match("bk?", "ab", 2, NULL, 0) == 2);
ASSERT(slre_match("b(k?)", "ab", 2, NULL, 0) == 2);
ASSERT(slre_match("b[k-z]*", "ab", 2, NULL, 0) == 2);
ASSERT(slre_match("ab(k|z|y)*", "ab", 2, NULL, 0) == 2);
ASSERT(slre_match("[b-z].*", "ab", 2, NULL, 0) == 2);
ASSERT(slre_match("(b|z|u).*", "ab", 2, NULL, 0) == 2);
ASSERT(slre_match("ab(k|z|y)?", "ab", 2, NULL, 0) == 2);
ASSERT(slre_match(".*", "ab", 2, NULL, 0) == 2);
ASSERT(slre_match(".*$", "ab", 2, NULL, 0) == 2);
ASSERT(slre_match("a+$", "aa", 2, NULL, 0) == 2);
ASSERT(slre_match("a*$", "aa", 2, NULL, 0) == 2);
ASSERT(slre_match( "a+$" ,"Xaa", 3, NULL, 0) == 3);
ASSERT(slre_match( "a*$" ,"Xaa", 3, NULL, 0) == 3);
ASSERT(slre_match("^.*c.?$", "abc", 3, NULL, 0, 0) == 3);
ASSERT(slre_match("^.*C.?$", "abc", 3, NULL, 0, SLRE_IGNORE_CASE) == 3);
ASSERT(slre_match("bk?", "ab", 2, NULL, 0, 0) == 2);
ASSERT(slre_match("b(k?)", "ab", 2, NULL, 0, 0) == 2);
ASSERT(slre_match("b[k-z]*", "ab", 2, NULL, 0, 0) == 2);
ASSERT(slre_match("ab(k|z|y)*", "ab", 2, NULL, 0, 0) == 2);
ASSERT(slre_match("[b-z].*", "ab", 2, NULL, 0, 0) == 2);
ASSERT(slre_match("(b|z|u).*", "ab", 2, NULL, 0, 0) == 2);
ASSERT(slre_match("ab(k|z|y)?", "ab", 2, NULL, 0, 0) == 2);
ASSERT(slre_match(".*", "ab", 2, NULL, 0, 0) == 2);
ASSERT(slre_match(".*$", "ab", 2, NULL, 0, 0) == 2);
ASSERT(slre_match("a+$", "aa", 2, NULL, 0, 0) == 2);
ASSERT(slre_match("a*$", "aa", 2, NULL, 0, 0) == 2);
ASSERT(slre_match( "a+$" ,"Xaa", 3, NULL, 0, 0) == 3);
ASSERT(slre_match( "a*$" ,"Xaa", 3, NULL, 0, 0) == 3);
{
/* Example: HTTP request */
@ -213,7 +216,7 @@ int main(void) {
struct slre_cap caps[4];
if (slre_match("^\\s*(\\S+)\\s+(\\S+)\\s+HTTP/(\\d)\\.(\\d)",
request, strlen(request), caps, 4) > 0) {
request, strlen(request), caps, 4, 0) > 0) {
printf("Method: [%.*s], URI: [%.*s]\n",
caps[0].len, caps[0].ptr,
caps[1].len, caps[1].ptr);
@ -246,7 +249,7 @@ int main(void) {
int i, j = 0, str_len = strlen(str);
while (j < str_len &&
(i = slre_match(regex, str + j, str_len - j, caps, 2)) > 0) {
(i = slre_match(regex, str + j, str_len - j, caps, 2, 0)) > 0) {
printf("Found URL: [%.*s]\n", caps[0].len, caps[0].ptr);
j += i;
}

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