diff options
Diffstat (limited to 'srclib/pcre/config.hw')
| -rw-r--r-- | srclib/pcre/config.hw | 73 |
1 files changed, 67 insertions, 6 deletions
diff --git a/srclib/pcre/config.hw b/srclib/pcre/config.hw index e192e8bc6e..5427366f7f 100644 --- a/srclib/pcre/config.hw +++ b/srclib/pcre/config.hw @@ -11,20 +11,35 @@ memmove(), change the definition of HAVE_BCOPY instead of HAVE_MEMMOVE. If your system has neither bcopy() nor memmove(), leave them both as 0; an emulation function will be used. */ -/* Define to empty if the keyword does not work. */ +/* If you are compiling for a system that uses EBCDIC instead of ASCII +character codes, define this macro as 1. On systems that can use "configure", +this can be done via --enable-ebcdic. */ + +#ifndef EBCDIC +#define EBCDIC 0 +#endif + +/* If you are compiling for a system that needs some magic to be inserted +before the definition of an exported function, define this macro to contain the +relevant magic. It apears at the start of every exported function. */ + +#define EXPORT + +/* Define to empty if the "const" keyword does not work. */ #undef const -/* Define to `unsigned' if <stddef.h> doesn't define size_t. */ +/* Define to "unsigned" if <stddef.h> doesn't define size_t. */ #undef size_t /* The following two definitions are mainly for the benefit of SunOS4, which doesn't have the strerror() or memmove() functions that should be present in -all Standard C libraries. The macros should normally be defined with the value -1 for other systems, but unfortunately we can't make this the default because -"configure" files generated by autoconf will only change 0 to 1; they won't -change 1 to 0 if the functions are not found. */ +all Standard C libraries. The macros HAVE_STRERROR and HAVE_MEMMOVE should +normally be defined with the value 1 for other systems, but unfortunately we +can't make this the default because "configure" files generated by autoconf +will only change 0 to 1; they won't change 1 to 0 if the functions are not +found. */ #define HAVE_STRERROR 1 #define HAVE_MEMMOVE 1 @@ -43,4 +58,50 @@ On Unix systems, "configure" can be used to override this default. */ #define NEWLINE '\n' #endif +/* The value of LINK_SIZE determines the number of bytes used to store +links as offsets within the compiled regex. The default is 2, which allows for +compiled patterns up to 64K long. This covers the vast majority of cases. +However, PCRE can also be compiled to use 3 or 4 bytes instead. This allows for +longer patterns in extreme cases. On Unix systems, "configure" can be used to +override this default. */ + +#ifndef LINK_SIZE +#define LINK_SIZE 2 +#endif + +/* The value of MATCH_LIMIT determines the default number of times the match() +function can be called during a single execution of pcre_exec(). (There is a +runtime method of setting a different limit.) The limit exists in order to +catch runaway regular expressions that take for ever to determine that they do +not match. The default is set very large so that it does not accidentally catch +legitimate cases. On Unix systems, "configure" can be used to override this +default default. */ + +#ifndef MATCH_LIMIT +#define MATCH_LIMIT 10000000 +#endif + +/* When calling PCRE via the POSIX interface, additional working storage is +required for holding the pointers to capturing substrings because PCRE requires +three integers per substring, whereas the POSIX interface provides only two. If +the number of expected substrings is small, the wrapper function uses space on +the stack, because this is faster than using malloc() for each call. The +threshold above which the stack is no longer use is defined by POSIX_MALLOC_ +THRESHOLD. On Unix systems, "configure" can be used to override this default. +*/ + +#ifndef POSIX_MALLOC_THRESHOLD +#define POSIX_MALLOC_THRESHOLD 10 +#endif + +/* PCRE uses recursive function calls to handle backtracking while matching. +This can sometimes be a problem on systems that have stacks of limited size. +Define NO_RECURSE to get a version that doesn't use recursion in the match() +function; instead it creates its own stack by steam using pcre_recurse_malloc +to get memory. For more detail, see comments and other stuff just above the +match() function. On Unix systems, "configure" can be used to set this in the +Makefile (use --disable-stack-for-recursion). */ + +/* #define NO_RECURSE */ + /* End */ |