diff options
Diffstat (limited to 'ncurses-5.2/form/fty_regex.c')
| -rw-r--r-- | ncurses-5.2/form/fty_regex.c | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/ncurses-5.2/form/fty_regex.c b/ncurses-5.2/form/fty_regex.c deleted file mode 100644 index ec02157..0000000 --- a/ncurses-5.2/form/fty_regex.c +++ /dev/null @@ -1,257 +0,0 @@ - -/* - * THIS CODE IS SPECIFICALLY EXEMPTED FROM THE NCURSES PACKAGE COPYRIGHT. - * You may freely copy it for use as a template for your own field types. - * If you develop a field type that might be of general use, please send - * it back to the ncurses maintainers for inclusion in the next version. - */ -/*************************************************************************** -* * -* Author : Juergen Pfeifer, juergen.pfeifer@gmx.net * -* * -***************************************************************************/ - -#include "form.priv.h" - -MODULE_ID("$Id$") - -#if HAVE_REGEX_H_FUNCS /* We prefer POSIX regex */ -#include <regex.h> - -typedef struct -{ - regex_t *pRegExp; - unsigned long *refCount; -} RegExp_Arg; - -#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS -#undef RETURN -static int reg_errno; - -static char *RegEx_Init(char *instring) -{ - reg_errno = 0; - return instring; -} - -static char *RegEx_Error(int code) -{ - reg_errno = code; - return 0; -} - -#define INIT register char *sp = RegEx_Init(instring); -#define GETC() (*sp++) -#define PEEKC() (*sp) -#define UNGETC(c) (--sp) -#define RETURN(c) return(c) -#define ERROR(c) return RegEx_Error(c) - -#if HAVE_REGEXP_H_FUNCS -#include <regexp.h> -#else -#include <regexpr.h> -#endif - -typedef struct -{ - char *compiled_expression; - unsigned long *refCount; -} RegExp_Arg; - -/* Maximum Length we allow for a compiled regular expression */ -#define MAX_RX_LEN (2048) -#define RX_INCREMENT (256) - -#endif - -/*--------------------------------------------------------------------------- -| Facility : libnform -| Function : static void *Make_RegularExpression_Type(va_list * ap) -| -| Description : Allocate structure for regex type argument. -| -| Return Values : Pointer to argument structure or NULL on error -+--------------------------------------------------------------------------*/ -static void *Make_RegularExpression_Type(va_list * ap) -{ -#if HAVE_REGEX_H_FUNCS - char *rx = va_arg(*ap,char *); - RegExp_Arg *preg; - - preg = (RegExp_Arg*)malloc(sizeof(RegExp_Arg)); - if (preg) - { - if (((preg->pRegExp = (regex_t*)malloc(sizeof(regex_t))) != (regex_t*)0) - && !regcomp(preg->pRegExp,rx, - (REG_EXTENDED | REG_NOSUB | REG_NEWLINE) )) - { - preg->refCount = (unsigned long *)malloc(sizeof(unsigned long)); - *(preg->refCount) = 1; - } - else - { - if (preg->pRegExp) - free(preg->pRegExp); - free(preg); - preg = (RegExp_Arg*)0; - } - } - return((void *)preg); -#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS - char *rx = va_arg(*ap,char *); - RegExp_Arg *pArg; - - pArg = (RegExp_Arg *)malloc(sizeof(RegExp_Arg)); - - if (pArg) - { - int blen = RX_INCREMENT; - pArg->compiled_expression = NULL; - pArg->refCount = (unsigned long *)malloc(sizeof(unsigned long)); - *(pArg->refCount) = 1; - - do { - char *buf = (char *)malloc(blen); - if (buf) - { -#if HAVE_REGEXP_H_FUNCS - char *last_pos = compile (rx, buf, &buf[blen], '\0'); -#else /* HAVE_REGEXPR_H_FUNCS */ - char *last_pos = compile (rx, buf, &buf[blen]); -#endif - if (reg_errno) - { - free(buf); - if (reg_errno==50) - blen += RX_INCREMENT; - else - { - free(pArg); - pArg = NULL; - break; - } - } - else - { - pArg->compiled_expression = buf; - break; - } - } - } while( blen <= MAX_RX_LEN ); - } - if (pArg && !pArg->compiled_expression) - { - free(pArg); - pArg = NULL; - } - return (void *)pArg; -#else - return 0; -#endif -} - -/*--------------------------------------------------------------------------- -| Facility : libnform -| Function : static void *Copy_RegularExpression_Type( -| const void * argp) -| -| Description : Copy structure for regex type argument. -| -| Return Values : Pointer to argument structure or NULL on error. -+--------------------------------------------------------------------------*/ -static void *Copy_RegularExpression_Type(const void * argp) -{ -#if (HAVE_REGEX_H_FUNCS | HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS) - const RegExp_Arg *ap = (const RegExp_Arg *)argp; - const RegExp_Arg *result = (const RegExp_Arg *)0; - - if (ap) - { - *(ap->refCount) += 1; - result = ap; - } - return (void *)result; -#else - return 0; -#endif -} - -/*--------------------------------------------------------------------------- -| Facility : libnform -| Function : static void Free_RegularExpression_Type(void * argp) -| -| Description : Free structure for regex type argument. -| -| Return Values : - -+--------------------------------------------------------------------------*/ -static void Free_RegularExpression_Type(void * argp) -{ -#if HAVE_REGEX_H_FUNCS | HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS - RegExp_Arg *ap = (RegExp_Arg *)argp; - if (ap) - { - if (--(*(ap->refCount)) == 0) - { -#if HAVE_REGEX_H_FUNCS - if (ap->pRegExp) - { - free(ap->refCount); - regfree(ap->pRegExp); - } -#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS - if (ap->compiled_expression) - { - free(ap->refCount); - free(ap->compiled_expression); - } -#endif - free(ap); - } - } -#endif -} - -/*--------------------------------------------------------------------------- -| Facility : libnform -| Function : static bool Check_RegularExpression_Field( -| FIELD * field, -| const void * argp) -| -| Description : Validate buffer content to be a valid regular expression -| -| Return Values : TRUE - field is valid -| FALSE - field is invalid -+--------------------------------------------------------------------------*/ -static bool Check_RegularExpression_Field(FIELD * field, const void * argp) -{ - bool match = FALSE; -#if HAVE_REGEX_H_FUNCS - const RegExp_Arg *ap = (const RegExp_Arg*)argp; - if (ap && ap->pRegExp) - match = (regexec(ap->pRegExp,field_buffer(field,0),0,NULL,0) ? FALSE:TRUE); -#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS - RegExp_Arg *ap = (RegExp_Arg *)argp; - if (ap && ap->compiled_expression) - match = (step(field_buffer(field,0),ap->compiled_expression) ? TRUE:FALSE); -#endif - return match; -} - -static FIELDTYPE typeREGEXP = { - _HAS_ARGS | _RESIDENT, - 1, /* this is mutable, so we can't be const */ - (FIELDTYPE *)0, - (FIELDTYPE *)0, - Make_RegularExpression_Type, - Copy_RegularExpression_Type, - Free_RegularExpression_Type, - Check_RegularExpression_Field, - NULL, - NULL, - NULL -}; - -FIELDTYPE* TYPE_REGEXP = &typeREGEXP; - -/* fty_regex.c ends here */ |