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| author | Guido van Rossum <guido@python.org> | 1997-07-17 22:41:38 (GMT) |
|---|---|---|
| committer | Guido van Rossum <guido@python.org> | 1997-07-17 22:41:38 (GMT) |
| commit | 74fb3039972db03a97852eb5ded0c618e7c60d79 (patch) | |
| tree | 9effea54e2b051d9f3cfbfd7d4686d31c3718155 /Modules/regexpr.c | |
| parent | 9e18ec7dc9e8452035085ea34d8f4dda43c8baed (diff) | |
| download | cpython-74fb3039972db03a97852eb5ded0c618e7c60d79.zip cpython-74fb3039972db03a97852eb5ded0c618e7c60d79.tar.gz cpython-74fb3039972db03a97852eb5ded0c618e7c60d79.tar.bz2 | |
Jeffrey's latests
Diffstat (limited to 'Modules/regexpr.c')
| -rw-r--r-- | Modules/regexpr.c | 54 |
1 files changed, 28 insertions, 26 deletions
diff --git a/Modules/regexpr.c b/Modules/regexpr.c index 6b6ccbef..2d30171 100644 --- a/Modules/regexpr.c +++ b/Modules/regexpr.c @@ -1,7 +1,3 @@ -/* - * -*- mode: c-mode; c-file-style: python -*- - */ - /* regexpr.c * * Author: Tatu Ylonen <ylo@ngs.fi> @@ -472,16 +468,15 @@ static int regexp_ansi_sequences; #define MAX_NESTING 100 /* max nesting level of operators */ #define SYNTAX(ch) re_syntax_table[(unsigned char)(ch)] -#define Sword 1 -static char re_syntax_table[256]; +char re_syntax_table[256]; -static void re_compile_initialize(void) +void re_compile_initialize(void) { int a; static int syntax_table_inited = 0; - + if (!syntax_table_inited) { syntax_table_inited = 1; @@ -491,7 +486,11 @@ static void re_compile_initialize(void) for (a = 'A'; a <= 'Z'; a++) re_syntax_table[a] = Sword; for (a = '0'; a <= '9'; a++) - re_syntax_table[a] = Sword; + re_syntax_table[a] = Sword | Sdigit; + re_syntax_table['_'] = Sword; + for (a = 9; a <= 13; a++) + re_syntax_table[a] = Swhitespace; + re_syntax_table[' '] = Swhitespace; } re_compile_initialized = 1; for (a = 0; a < 256; a++) @@ -602,13 +601,12 @@ static void re_compile_fastmap_aux(char *code, return; /* we have already been here */ visited[pos] = 1; for (;;) - switch (code[pos++]) - { + switch (code[pos++]) { case Cend: - { - *can_be_null = 1; - return; - } + { + *can_be_null = 1; + return; + } case Cbol: case Cbegbuf: case Cendbuf: @@ -1609,9 +1607,6 @@ int re_match(regexp_t bufp, NEW_STATE(state, bufp->num_registers); - if (!re_compile_initialized) - re_compile_initialize(); - continue_matching: switch (*code++) { @@ -1883,11 +1878,11 @@ int re_match(regexp_t bufp, { if (text == textend) goto fail; - if (SYNTAX(*text) != Sword) + if (SYNTAX(*text) & Sword) goto fail; if (text == textstart) goto continue_matching; - if (SYNTAX(text[-1]) != Sword) + if (!(SYNTAX(text[-1]) & Sword)) goto continue_matching; goto fail; } @@ -1895,11 +1890,11 @@ int re_match(regexp_t bufp, { if (text == textstart) goto fail; - if (SYNTAX(text[-1]) != Sword) + if (!(SYNTAX(text[-1]) & Sword)) goto fail; if (text == textend) goto continue_matching; - if (SYNTAX(*text) == Sword) + if (SYNTAX(*text) & Sword) goto fail; goto continue_matching; } @@ -1910,7 +1905,7 @@ int re_match(regexp_t bufp, if (text == textstart || text == textend) goto continue_matching; - if ((SYNTAX(text[-1]) == Sword) ^ (SYNTAX(*text) == Sword)) + if ((SYNTAX(text[-1]) & Sword) ^ (SYNTAX(*text) & Sword)) goto continue_matching; goto fail; } @@ -1920,21 +1915,21 @@ int re_match(regexp_t bufp, * beginning and end of buffer. */ if (text == textstart || text == textend) goto fail; - if (!((SYNTAX(text[-1]) == Sword) ^ (SYNTAX(*text) == Sword))) + if (!((SYNTAX(text[-1]) & Sword) ^ (SYNTAX(*text) & Sword))) goto fail; goto continue_matching; } case Csyntaxspec: { NEXTCHAR(ch); - if (SYNTAX(ch) != (unsigned char)*code++) + if (!(SYNTAX(ch) & (unsigned char)*code++)) goto fail; goto continue_matching; } case Cnotsyntaxspec: { NEXTCHAR(ch); - if (SYNTAX(ch) != (unsigned char)*code++) + if (SYNTAX(ch) & (unsigned char)*code++) break; goto continue_matching; } @@ -2067,3 +2062,10 @@ int re_search(regexp_t bufp, } return -1; } + +/* +** Local Variables: +** mode: c +** c-file-style: "python" +** End: +*/ |