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Diffstat (limited to 'WWW/Library/Implementation/HTString.h')
| -rw-r--r-- | WWW/Library/Implementation/HTString.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/WWW/Library/Implementation/HTString.h b/WWW/Library/Implementation/HTString.h new file mode 100644 index 0000000..82520ad --- /dev/null +++ b/WWW/Library/Implementation/HTString.h @@ -0,0 +1,167 @@ +/* + * $LynxId: HTString.h,v 1.41 2021/06/09 19:30:55 tom Exp $ + * String handling for libwww + * STRINGS + * + * Case-independent string comparison and allocations with copies etc + */ +#ifndef HTSTRING_H +#define HTSTRING_H + +#ifndef HTUTILS_H +#include <HTUtils.h> +#endif /* HTUTILS_H */ + +#ifdef __cplusplus +extern "C" { +#endif + extern const char *HTLibraryVersion; /* String for help screen etc */ + +/* + * EBCDIC string comparison using ASCII collating sequence + */ +#ifdef NOT_ASCII + extern int AS_casecomp(const char *a, const char *b); + extern int AS_ncmp(const char *a, const char *b, unsigned int n); + +#define AS_cmp( a, b ) ( AS_ncmp( ( a ), ( b ), -1 ) ) + +#else +#define AS_casecomp( a, b ) ( strcasecomp( ( a ), ( b ) ) ) +#define AS_ncmp( a, b, c ) ( StrNCmp( ( a ), ( b ), ( c ) ) ) +#define AS_cmp strcmp + +#endif /* NOT_ASCII */ + +#define StrNCat(a,b,c) strncat((a),(b),(size_t)(c)) +#define StrNCpy(a,b,c) strncpy((a),(b),(size_t)(c)) +#define StrNCmp(a,b,c) strncmp((a),(b),(size_t)(c)) + +#define MemCpy(a,b,c) memcpy((a),(b),(size_t)(c)) +#define MemCmp(a,b,c) memcmp((a),(b),(size_t)(c)) + + /* + * Workaround for glibc header defect combined with -Wlogical-op warnings + */ +#define StrChr (strchr) + + /* + * Case-insensitive string comparison + * + * The usual routines (comp instead of cmp) had some problem. + */ + extern int strcasecomp(const char *a, const char *b); + extern int strncasecomp(const char *a, const char *b, int n); + + extern int strcasecomp8(const char *a, const char *b); + extern int strncasecomp8(const char *a, const char *b, int n); + + extern int strcasecomp_asterisk(const char *a, const char *b); + + /* + * strcasecomp8 and strncasecomp8 are variants of strcasecomp and + * strncasecomp, but use 8bit upper/lower case information from the + * current display charset + */ + + /* + * Malloced string manipulation + */ +#define StrAllocCopy(dest, src) HTSACopy (&(dest), src) +#define StrAllocCat(dest, src) HTSACat (&(dest), src) + extern char *HTSACopy(char **dest, const char *src); + extern char *HTSACat(char **dest, const char *src); + + /* + * optimized for heavily realloc'd strings in temp objects + */ +#define StrAllocCopy_extra(dest, src) HTSACopy_extra (&(dest), src) +#define FREE_extra(x) {if (x != NULL) {HTSAFree_extra(x); x = NULL;}} +#define Clear_extra(x) {if (x != NULL) {*x = '\0';}} + extern char *HTSACopy_extra(char **dest, const char *src); + extern void HTSAFree_extra(char *s); + + /* + * Next word or quoted string + */ + extern char *HTNextField(char **pstr); + + /* A more general parser - kw */ + extern char *HTNextTok(char **pstr, + const char *delims, const char *bracks, char *found); + + extern char *HTSprintf(char **pstr, const char *fmt, ...) GCC_PRINTFLIKE(2,3); + extern char *HTSprintf0(char **pstr, const char *fmt, ...) GCC_PRINTFLIKE(2,3); + +#if defined(LY_FIND_LEAKS) /* private otherwise */ + extern char *StrAllocVsprintf(char **pstr, + size_t len, + const char *fmt, + va_list *ap); +#endif + +#if defined(__CYGWIN__) +#define USE_QUOTED_PARAMETER 2 /* single and double-quoting */ +#elif defined(DOSPATH) +#define USE_QUOTED_PARAMETER 1 /* double-quoting only */ +#elif (defined(VMS) || defined(__EMX__)) +#define USE_QUOTED_PARAMETER 0 /* no quoting */ +#else +#define USE_QUOTED_PARAMETER 2 /* single and double-quoting */ +#endif + +#if USE_QUOTED_PARAMETER + extern char *HTQuoteParameter(const char *parameter); + extern void HTAddXpand(char **result, const char *command, int number, const char *parameter); + +#else +#define HTQuoteParameter(parameter) parameter /* simplify ifdef'ing */ +#define HTAddXpand(result,command,number,parameter) HTAddParam(result,command,number,parameter) +#endif + + extern int HTCountCommandArgs(const char *command); + extern void HTAddToCmd(char **result, const char *command, int number, const char *string); + extern void HTAddParam(char **result, const char *command, int number, const char *parameter); + extern void HTEndParam(char **result, const char *command, int number); + +/* Force an option, with leading blanks, to be appended without quoting them */ +#define HTOptParam(result, command, number, parameter) HTSACat(result, parameter) + +/* Binary copy and concat */ + typedef struct { + char *str; + int len; + } bstring; + + extern void HTSABAlloc(bstring **dest, int len); + extern void HTSABCopy(bstring **dest, const char *src, int len); + extern void HTSABCopy0(bstring **dest, const char *src); + extern void HTSABCat(bstring **dest, const char *src, int len); + extern void HTSABCat0(bstring **dest, const char *src); + extern BOOL HTSABEql(bstring *a, bstring *b); + extern void HTSABFree(bstring **ptr); + +#define BStrLen(s) (((s) != 0) ? (s)->len : 0) +#define BStrData(s) (((s) != 0) ? (s)->str : 0) + +#define BINEQ(a,b) (HTSABEql(a,b)) /* like STREQ() */ + +#define isBEmpty(p) ((p) == 0 || BStrData(p) == 0 || BStrLen(p) == 0) + +#define BStrAlloc(d,n) HTSABAlloc( &(d), n) +#define BStrCopy(d,s) HTSABCopy( &(d), BStrData(s), BStrLen(s)) +#define BStrCopy0(d,s) HTSABCopy0( &(d), s) +#define BStrCopy1(d,s,n) HTSABCopy( &(d), s, n) +#define BStrCat(d,s) HTSABCat( &(d), BStrData(s), BStrLen(s)) +#define BStrCat0(d,s) HTSABCat0( &(d), s) +#define BStrFree(d) HTSABFree( &(d)) + + extern bstring *HTBprintf(bstring **pstr, const char *fmt, ...) GCC_PRINTFLIKE(2,3); + + extern void trace_bstring(bstring *data); + extern void trace_bstring2(const char *text, int size); + +#ifdef __cplusplus +} +#endif +#endif /* HTSTRING_H */ |