/* * \file autoopts.h * * This file defines all the global structures and special values * used in the automated option processing library. * * @group autoopts * @{ */ /* * This file is part of AutoOpts, a companion to AutoGen. * AutoOpts is free software. * AutoOpts is Copyright (C) 1992-2018 by Bruce Korb - all rights reserved * * AutoOpts is available under any one of two licenses. The license * in use must be one of these two and the choice is under the control * of the user of the license. * * The GNU Lesser General Public License, version 3 or later * See the files "COPYING.lgplv3" and "COPYING.gplv3" * * The Modified Berkeley Software Distribution License * See the file "COPYING.mbsd" * * These files have the following sha256 sums: * * 8584710e9b04216a394078dc156b781d0b47e1729104d666658aecef8ee32e95 COPYING.gplv3 * 4379e7444a0e2ce2b12dd6f5a52a27a4d02d39d247901d3285c88cf0d37f477b COPYING.lgplv3 * 13aa749a5b0a454917a944ed8fffc530b784f5ead522b1aacaf4ec8aa55a6239 COPYING.mbsd */ #ifndef AUTOGEN_AUTOOPTS_H #define AUTOGEN_AUTOOPTS_H #include #define AO_NAME_LIMIT 127 #define AO_NAME_SIZE ((size_t)(AO_NAME_LIMIT + 1)) #ifndef AG_PATH_MAX # ifdef PATH_MAX # define AG_PATH_MAX ((size_t)PATH_MAX) # else # ifdef __gnu_hurd__ # define size_t unsigned long # endif # define AG_PATH_MAX ((size_t)4096) # endif #else # if defined(PATH_MAX) && (PATH_MAX > MAXPATHLEN) # undef AG_PATH_MAX # define AG_PATH_MAX ((size_t)PATH_MAX) # endif #endif #undef EXPORT #define EXPORT #ifndef NUL #define NUL '\0' #endif #define BEL '\a' #define BS '\b' #define HT '\t' #define LF '\n' #define VT '\v' #define FF '\f' #define CR '\r' #if defined(_WIN32) && !defined(__CYGWIN__) # define DIRCH '\\' #else # define DIRCH '/' #endif #ifndef EX_USAGE /** * Command line usage problem */ # define EX_USAGE 64 #endif #ifndef EX_DATAERR /** * The input data was incorrect in some way. */ # define EX_DATAERR 64 #endif #ifndef EX_NOINPUT /** * option state was requested from a file that cannot be loaded. */ # define EX_NOINPUT 66 #endif #ifndef EX_SOFTWARE /** * AutoOpts Software failure. */ # define EX_SOFTWARE 70 #endif #ifndef EX_OSERR /** * Command line usage problem */ # define EX_OSERR 71 #endif #define NL '\n' #ifndef C /** * Coercive cast. Compel an address to be interpreted as the type * of the first argument. No complaints, just do it. */ #define C(_t,_p) ((_t)VOIDP(_p)) #endif /* The __attribute__((__warn_unused_result__)) feature is available in gcc versions 3.4 and newer, while the typeof feature has been available since 2.7 at least. */ # if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4) # define ignore_val(x) ((void) (x)) # else # define ignore_val(x) (({ __typeof__ (x) __x = (x); (void) __x; })) # endif /* * Convert the number to a list usable in a printf call */ #define NUM_TO_VER(n) ((n) >> 12), ((n) >> 7) & 0x001F, (n) & 0x007F #define NAMED_OPTS(po) \ (((po)->fOptSet & (OPTPROC_SHORTOPT | OPTPROC_LONGOPT)) == 0) #define SKIP_OPT(p) (((p)->fOptState & OPTST_IMMUTABLE_MASK) != 0) typedef int tDirection; /** * handling option presets. Start with command line and work through * config settings in reverse order. */ #define DIRECTION_PRESET -1 /** * handling normal options. Start with first config file, then environment * variables and finally the command line. */ #define DIRECTION_PROCESS 1 /** * An initialzation phase or an option being loaded from program sources. */ #define DIRECTION_CALLED 0 #define PROCESSING(d) ((d)>0) #define PRESETTING(d) ((d)<0) #define CALLED(d) ((d)==0) /** * When loading a line (or block) of text as an option, the value can * be processed in any of several modes. */ typedef enum { /** * If the value looks like a quoted string, then process it. Double * quoted strings are processed the way strings are in "C" programs, * except they are treated as regular characters if the following * character is not a well-established escape sequence. Single quoted * strings (quoted with apostrophies) are handled the way strings are * handled in shell scripts, *except* that backslash escapes are * honored before backslash escapes and apostrophies. */ OPTION_LOAD_COOKED, /** * Even if the value begins with quote characters, do not do quote * processing. Strip leading and trailing white space. */ OPTION_LOAD_UNCOOKED, /** * Keep every part of the value between the delimiters. */ OPTION_LOAD_KEEP } tOptionLoadMode; static tOptionLoadMode option_load_mode; /** * The pager state is used by optionPagedUsage() procedure. * When it runs, it sets itself up to be called again on exit. * If, however, a routine needs a child process to do some work * before it is done, then 'pagerState' must be set to * 'PAGER_STATE_CHILD' so that optionPagedUsage() will not try * to run the pager program before its time. */ typedef enum { PAGER_STATE_INITIAL, //@< initial option paging state /** * temp file created and optionPagedUsage is scheduled to run at exit */ PAGER_STATE_READY, /** * This is a child process used in creating shell script usage. */ PAGER_STATE_CHILD } tePagerState; typedef enum { ENV_ALL, ENV_IMM, ENV_NON_IMM } teEnvPresetType; typedef enum { TOPT_UNDEFINED = 0, TOPT_SHORT, TOPT_LONG, TOPT_DEFAULT } teOptType; typedef struct { tOptDesc * pOD; char const * pzOptArg; opt_state_mask_t flags; teOptType optType; } tOptState; #define OPTSTATE_INITIALIZER(st) \ { NULL, NULL, OPTST_ ## st, TOPT_UNDEFINED } #define TEXTTO_TABLE \ _TT_(LONGUSAGE) \ _TT_(USAGE) \ _TT_(VERSION) #define _TT_(n) \ TT_ ## n , typedef enum { TEXTTO_TABLE COUNT_TT } teTextTo; #undef _TT_ /** * option argument types. Used to create usage information for * particular options. */ typedef struct { char const * pzStr; char const * pzReq; char const * pzNum; char const * pzFile; char const * pzKey; char const * pzKeyL; char const * pzBool; char const * pzNest; char const * pzOpt; char const * pzNo; char const * pzBrk; char const * pzNoF; char const * pzSpc; char const * pzOptFmt; char const * pzTime; } arg_types_t; #define AGALOC(_c, _w) ao_malloc((size_t)_c) #define AGREALOC(_p, _c, _w) ao_realloc(VOIDP(_p), (size_t)_c) #define AGFREE(_p) free(VOIDP(_p)) #define AGDUPSTR(_p, _s, _w) (_p = ao_strdup(_s)) static void * ao_malloc(size_t sz); static void * ao_realloc(void *p, size_t sz); #define ao_free(_p) free(VOIDP(_p)) static char * ao_strdup(char const * str); /** * DO option handling? * * Options are examined at two times: at immediate handling time and at * normal handling time. If an option is disabled, the timing may be * different from the handling of the undisabled option. The OPTST_DIABLED * bit indicates the state of the currently discovered option. * So, here's how it works: * * A) handling at "immediate" time, either 1 or 2: * * 1. OPTST_DISABLED is not set: * IMM must be set * DISABLE_IMM don't care * TWICE don't care * DISABLE_TWICE don't care * 0 -and- 1 x x x * * 2. OPTST_DISABLED is set: * IMM don't care * DISABLE_IMM must be set * TWICE don't care * DISABLE_TWICE don't care * 1 -and- x 1 x x */ #define DO_IMMEDIATELY(_flg) \ ( (((_flg) & (OPTST_DISABLED|OPTST_IMM)) == OPTST_IMM) \ || ( ((_flg) & (OPTST_DISABLED|OPTST_DISABLE_IMM)) \ == (OPTST_DISABLED|OPTST_DISABLE_IMM) )) /** * B) handling at "regular" time because it was not immediate * * 1. OPTST_DISABLED is not set: * IMM must *NOT* be set * DISABLE_IMM don't care * TWICE don't care * DISABLE_TWICE don't care * 0 -and- 0 x x x * * 2. OPTST_DISABLED is set: * IMM don't care * DISABLE_IMM don't care * TWICE must be set * DISABLE_TWICE don't care * 1 -and- x x 1 x */ #define DO_NORMALLY(_flg) ( \ (((_flg) & (OPTST_DISABLED|OPTST_IMM)) == 0) \ || (((_flg) & (OPTST_DISABLED|OPTST_DISABLE_IMM)) == \ OPTST_DISABLED) ) /** * C) handling at "regular" time because it is to be handled twice. * The immediate bit was already tested and found to be set: * * 3. OPTST_DISABLED is not set: * IMM is set (but don't care) * DISABLE_IMM don't care * TWICE must be set * DISABLE_TWICE don't care * 0 -and- ? x 1 x * * 4. OPTST_DISABLED is set: * IMM don't care * DISABLE_IMM is set (but don't care) * TWICE don't care * DISABLE_TWICE must be set * 1 -and- x ? x 1 */ #define DO_SECOND_TIME(_flg) ( \ (((_flg) & (OPTST_DISABLED|OPTST_TWICE)) == \ OPTST_TWICE) \ || (((_flg) & (OPTST_DISABLED|OPTST_DISABLE_TWICE)) == \ (OPTST_DISABLED|OPTST_DISABLE_TWICE) )) /* * text_mmap structure. Only active on platforms with mmap(2). */ #ifdef HAVE_SYS_MMAN_H # include #else # ifndef PROT_READ # define PROT_READ 0x01 # endif # ifndef PROT_WRITE # define PROT_WRITE 0x02 # endif # ifndef MAP_SHARED # define MAP_SHARED 0x01 # endif # ifndef MAP_PRIVATE # define MAP_PRIVATE 0x02 # endif #endif #ifndef MAP_FAILED # define MAP_FAILED VOIDP(-1) #endif #ifndef _SC_PAGESIZE # ifdef _SC_PAGE_SIZE # define _SC_PAGESIZE _SC_PAGE_SIZE # endif #endif #ifndef HAVE_STRCHR extern char * strchr(char const * s, int c); extern char * strrchr(char const * s, int c); #endif /** * INQUERY_CALL() tests whether the option handling function has been * called by an inquery (help text needed, or option being reset), * or called by a set-the-option operation. */ #define INQUERY_CALL(_o, _d) ( \ ((_o) <= OPTPROC_EMIT_LIMIT) \ || ((_d) == NULL) \ || (((_d)->fOptState & OPTST_RESET) != 0) ) /** * Define and initialize all the user visible strings. * We do not do translations. If translations are to be done, then * the client will provide a callback for that purpose. */ #undef DO_TRANSLATIONS #include "autoopts/usage-txt.h" /** * File pointer for usage output */ FILE * option_usage_fp; /** * If provided in the option structure */ static char const * program_pkgdatadir; /** * privately exported functions */ extern tOptProc optionPrintVersion, optionPagedUsage, optionLoadOpt; #ifdef AUTOOPTS_INTERNAL #ifndef PKGDATADIR # define PKGDATADIR "" #endif #define APOSTROPHE '\'' #define OPTPROC_L_N_S (OPTPROC_LONGOPT | OPTPROC_SHORTOPT) #if defined(ENABLE_NLS) && defined(HAVE_LIBINTL_H) # include #endif typedef struct { size_t fnm_len; uint32_t fnm_mask; char const * fnm_name; } ao_flag_names_t; /** * Automated Options Usage Flags. * NB: no entry may be a prefix of another entry */ #define AOFLAG_TABLE \ _aof_(gnu, OPTPROC_GNUUSAGE ) \ _aof_(autoopts, ~OPTPROC_GNUUSAGE) \ _aof_(no_misuse_usage, OPTPROC_MISUSE ) \ _aof_(misuse_usage, ~OPTPROC_MISUSE ) \ _aof_(compute, OPTPROC_COMPUTE ) #define _aof_(_n, _f) AOUF_ ## _n ## _ID, typedef enum { AOFLAG_TABLE AOUF_COUNT } ao_flag_id_t; #undef _aof_ #define _aof_(_n, _f) AOUF_ ## _n = (1 << AOUF_ ## _n ## _ID), typedef enum { AOFLAG_TABLE } ao_flags_t; #undef _aof_ static char const zNil[] = ""; static arg_types_t argTypes; static char line_fmt_buf[32]; static bool displayEnum = false; static char const pkgdatadir_default[] = PKGDATADIR; static char const * program_pkgdatadir = pkgdatadir_default; static tOptionLoadMode option_load_mode = OPTION_LOAD_UNCOOKED; static tePagerState pagerState = PAGER_STATE_INITIAL; static noreturn void option_exits(int exit_code); static noreturn void fserr_exit(char const * prog, char const * op, char const * fname); static void fserr_warn(char const * prog, char const * op, char const * fname); static noreturn void ao_bug(char const * msg); FILE * option_usage_fp = NULL; static char const * pz_enum_err_fmt; tOptions * optionParseShellOptions = NULL; static char const * shell_prog = NULL; static char * script_leader = NULL; static char * script_trailer = NULL; static char * script_text = NULL; static bool print_exit = false; #endif /* AUTOOPTS_INTERNAL */ #endif /* AUTOGEN_AUTOOPTS_H */ /** * @} * Local Variables: * mode: C * c-file-style: "stroustrup" * indent-tabs-mode: nil * End: * end of autoopts/autoopts.h */