diff options
Diffstat (limited to 'lib/util/shhopt.h')
| -rw-r--r-- | lib/util/shhopt.h | 66 |
1 files changed, 41 insertions, 25 deletions
diff --git a/lib/util/shhopt.h b/lib/util/shhopt.h index 9a446290..d9304f9f 100644 --- a/lib/util/shhopt.h +++ b/lib/util/shhopt.h @@ -4,7 +4,7 @@ HERE IS AN EXAMPLE OF THE USE OF SHHOPT: #include <shhopt.h> -int +int main ( int argc, char **argv ) { /* initial values here are just to demonstrate what gets set and @@ -18,19 +18,21 @@ main ( int argc, char **argv ) { int height=7; int verbose_flag=7; int debug_flag=7; + char ** methodlist; struct optNameValue * optlist; - + optStruct3 opt; unsigned int option_def_index = 0; optEntry * option_def; MALLOCARRAY(option_def, 100); - OPTENT3(0, "help", OPT_FLAG, &help_flag, &help_spec, 0); - OPTENT3(0, "height", OPT_INT, &height, &height_spec, 0); - OPTENT3('n', "name", OPT_STRING, &name, &name_spec, 0); - OPTENT3('v', "verbose", OPT_FLAG, &verbose_flag, NULL, 0); - OPTENT3('g', "debug", OPT_FLAG, &debug_flag, NULL, 0); - OPTENT3(0, "options", OPT_NAMELIST, &optlist, NULL, 0); + OPTENT3(0, "help", OPT_FLAG, &help_flag, &help_spec, 0); + OPTENT3(0, "height", OPT_INT, &height, &height_spec, 0); + OPTENT3('n', "name", OPT_STRING, &name, &name_spec, 0); + OPTENT3('v', "verbose", OPT_FLAG, &verbose_flag, NULL, 0); + OPTENT3('g', "debug", OPT_FLAG, &debug_flag, NULL, 0); + OPTENT3(0, "methods", OPT_STRINGLIST, &methodlist, NULL, 0); + OPTENT3(0, "options", OPT_NAMELIST, &optlist, NULL, 0); opt.opt_table = option_def; opt.short_allowed = 1; @@ -38,7 +40,7 @@ main ( int argc, char **argv ) { pm_optParseOptions3(&argc, argv, opt, sizeof(opt), 0); - + printf("argc=%d\n", argc); printf("help_flag=%d\n", help_flag); @@ -50,13 +52,24 @@ main ( int argc, char **argv ) { printf("verbose_flag=%d\n", verbose_flag); printf("debug_flag=%d\n", verbose_flag); + if (methodlist) { + unsigned int i; + printf("methods: "); + while (methodlist[i]) { + printf("'%s', ", methodlist[i]); + ++i; + } + free(methodlist); + } else + printf("No -options\n"); + if (optlist) { unsigned int i; while (optlist[i].name) { printf("option '%s' = '%s'\n", optlist[i].name, optlist[i].value); ++i; } - optDestroyNameValueList(optlist); + pm_optDestroyNameValueList(optlist); } else printf("No -options\n"); } @@ -116,7 +129,7 @@ typedef struct { * or pointer to function if type == OPT_FUNC. */ int flags; /* modifier flags. */ } optStruct; - + typedef struct { /* This structure describes a single program option in a form for use by the pm_optParseOptions3() function. @@ -124,10 +137,10 @@ typedef struct { char shortName; /* short option name. */ const char *longName; /* long option name, not including '--' or '-' */ optArgType type; /* option type. */ - void *arg; + void *arg; /* pointer to variable in which to return option's argument (or TRUE - if it's a flag option), or pointer to function if - type == OPT_FUNC. If the option is specified multiple times, only + if it's a flag option), or pointer to function if + type == OPT_FUNC. If the option is specified multiple times, only the rightmost one affects this return value. */ unsigned int *specified; @@ -136,7 +149,7 @@ typedef struct { */ int flags; /* modifier flags. */ } optEntry; - + typedef struct { /* This structure describes the options of a program in a form for @@ -146,20 +159,20 @@ typedef struct { /* The syntax may include short (i.e. one-character) options. These options may be stacked within a single token (e.g. -abc = -a -b -c). If this value is not true, the short option - member of the option table entry is meaningless and long + member of the option table entry is meaningless and long options may have either one or two dashes. */ unsigned char allowNegNum; /* boolean */ /* Anything that starts with - and then a digit is a numeric - parameter, not an option + parameter, not an option */ optStruct *opt_table; } optStruct2; typedef struct { /* Same as optStruct2, but for pm_optParseOptions3() */ - unsigned char short_allowed; - unsigned char allowNegNum; + unsigned char short_allowed; + unsigned char allowNegNum; optEntry *opt_table; } optStruct3; @@ -173,9 +186,9 @@ typedef struct { optStruct *option_def = malloc(100*sizeof(optStruct)); OPTENTRY('h', "help", OPT_FLAG, &help_flag, 0); OPTENTRY(0, "alphaout", OPT_STRING, &alpha_filename, 0); -*/ +*/ -/* If you name your variables option_def and option_def_index like in the +/* If you name your variables option_def and option_def_index like in the example above, everything's easy. If you want to use OPTENTRY with other variables, define macros OPTION_DEF and OPTION_DEF_INDEX before calling OPTENTRY. @@ -217,7 +230,10 @@ typedef struct { OPTENTRY(shortvalue, longvalue, typevalue, outputvalue, flagvalue) \ } -#define OPTENTINIT OPTION_DEF[0].type = OPT_END +#define OPTENTINIT \ + do {OPTION_DEF_INDEX=0; \ + OPTION_DEF[OPTION_DEF_INDEX].type = OPT_END; \ + } while (0) struct optNameValue { @@ -226,7 +242,7 @@ struct optNameValue { }; - + void pm_optSetFatalFunc(void (*f)(const char *, ...)); @@ -234,10 +250,10 @@ void pm_optParseOptions(int *argc, char *argv[], optStruct opt[], int allowNegNum); void -pm_optParseOptions2(int * const argc_p, char *argv[], const optStruct2 opt, +pm_optParseOptions2(int * const argc_p, char *argv[], const optStruct2 opt, const unsigned long flags); void -pm_optParseOptions3(int * const argc_p, char *argv[], const optStruct3 opt, +pm_optParseOptions3(int * const argc_p, char *argv[], const optStruct3 opt, const unsigned int optStructSize, const unsigned long flags); void |