popt/popthelp.c File Reference

#include "system.h"
#include <wchar.h>
#include "poptint.h"

Go to the source code of this file.

Data Structures

struct  poptDone_s
 Keep track of option tables already processed. More...

Defines

#define POPT_WCHAR_HACK

Typedefs

typedef struct poptDone_spoptDone

Functions

static void displayArgs (poptContext con, enum poptCallbackReason foo, struct poptOption *key, const char *arg, void *data)
 Display arguments.
static const char *const getTableTranslationDomain (const struct poptOption *table)
 
Parameters:
table option(s)

static const char *const getArgDescrip (const struct poptOption *opt, const char *translation_domain)
 
Parameters:
opt option(s)

static char * singleOptionDefaultValue (size_t lineLength, const struct poptOption *opt, const char *translation_domain)
 Display default value for an option.
static void singleOptionHelp (FILE *fp, size_t maxLeftCol, const struct poptOption *opt, const char *translation_domain)
 Display help text for an option.
static size_t maxArgWidth (const struct poptOption *opt, const char *translation_domain)
 Find display width for longest argument string.
static void itemHelp (FILE *fp, poptItem items, int nitems, size_t left, const char *translation_domain)
 Display popt alias and exec help.
static void singleTableHelp (poptContext con, FILE *fp, const struct poptOption *table, size_t left, const char *translation_domain)
 Display help text for a table of options.
static int showHelpIntro (poptContext con, FILE *fp)
 
Parameters:
con context

void poptPrintHelp (poptContext con, FILE *fp, int flags)
 Print detailed description of options.
static size_t singleOptionUsage (FILE *fp, size_t cursor, const struct poptOption *opt, const char *translation_domain)
 Display usage text for an option.
static size_t itemUsage (FILE *fp, size_t cursor, poptItem item, int nitems, const char *translation_domain)
 Display popt alias and exec usage.
static size_t singleTableUsage (poptContext con, FILE *fp, size_t cursor, const struct poptOption *opt, const char *translation_domain, poptDone done)
 Display usage text for a table of options.
static int showShortOptions (const struct poptOption *opt, FILE *fp, char *str)
 Return concatenated short options for display.
void poptPrintUsage (poptContext con, FILE *fp, int flags)
 Print terse description of options.
void poptSetOtherOptionHelp (poptContext con, const char *text)
 Provide text to replace default "[OPTION...]" in help/usage output.

Variables

struct poptOption poptAliasOptions []
 Empty table marker to enable displaying popt alias/exec options.
struct poptOption poptHelpOptions []
 Auto help table options.
static struct poptOption poptHelpOptions2 []
struct poptOptionpoptHelpOptionsI18N = poptHelpOptions2


Detailed Description

Definition in file popthelp.c.


Define Documentation

#define POPT_WCHAR_HACK

Definition at line 13 of file popthelp.c.


Typedef Documentation

typedef struct poptDone_s * poptDone


Function Documentation

static void displayArgs ( poptContext  con,
enum poptCallbackReason  foo,
struct poptOption key,
const char *  arg,
void *  data 
) [static]

Display arguments.

Parameters:
con context
foo (unused)
key option(s)
arg (unused)
data (unused)

Definition at line 30 of file popthelp.c.

References poptPrintHelp(), poptPrintUsage(), and poptOption::shortName.

static const char* const getArgDescrip ( const struct poptOption opt,
const char *  translation_domain 
) [static]

Parameters:
opt option(s)

Parameters:
translation_domain translation domain

Definition at line 109 of file popthelp.c.

References poptOption::argDescrip, poptOption::argInfo, D_, POPT_, POPT_ARG_DOUBLE, POPT_ARG_FLOAT, POPT_ARG_INT, POPT_ARG_LONG, POPT_ARG_MASK, POPT_ARG_NONE, POPT_ARG_STRING, and POPT_ARG_VAL.

static const char* const getTableTranslationDomain ( const struct poptOption table  )  [static]

Parameters:
table option(s)

Definition at line 91 of file popthelp.c.

References poptOption::arg, poptOption::argInfo, poptOption::longName, POPT_ARG_INTL_DOMAIN, and poptOption::shortName.

static void itemHelp ( FILE *  fp,
poptItem  items,
int  nitems,
size_t  left,
const char *  translation_domain 
) [static]

Display popt alias and exec help.

Parameters:
fp output file handle
items alias/exec array
nitems no. of alias/exec entries
left largest argument display width
translation_domain translation domain

Definition at line 471 of file popthelp.c.

static size_t itemUsage ( FILE *  fp,
size_t  cursor,
poptItem  item,
int  nitems,
const char *  translation_domain 
) [static]

Display popt alias and exec usage.

Parameters:
fp output file handle
cursor current display position
item alias/exec array
nitems no. of ara/exec entries
translation_domain translation domain

Definition at line 658 of file popthelp.c.

static size_t maxArgWidth ( const struct poptOption opt,
const char *  translation_domain 
) [static]

Find display width for longest argument string.

Parameters:
opt option(s)
translation_domain translation domain
Returns:
display width

Definition at line 409 of file popthelp.c.

static int showHelpIntro ( poptContext  con,
FILE *  fp 
) [static]

Parameters:
con context

Parameters:
fp output file handle

Definition at line 539 of file popthelp.c.

static int showShortOptions ( const struct poptOption opt,
FILE *  fp,
char *  str 
) [static]

Return concatenated short options for display.

Todo:
Sub-tables should be recursed.
Parameters:
opt option(s)
fp output file handle
Return values:
str concatenation of short options
Returns:
length of display string

Definition at line 753 of file popthelp.c.

static char* singleOptionDefaultValue ( size_t  lineLength,
const struct poptOption opt,
const char *  translation_domain 
) [static]

Display default value for an option.

Parameters:
lineLength display positions remaining
opt option(s)
translation_domain translation domain
Returns:

Definition at line 146 of file popthelp.c.

References _free(), poptOption::arg, poptOption::argInfo, D_, POPT_ARG_DOUBLE, POPT_ARG_FLOAT, POPT_ARG_INT, POPT_ARG_LONG, POPT_ARG_MASK, POPT_ARG_NONE, POPT_ARG_STRING, and POPT_ARG_VAL.

static void singleOptionHelp ( FILE *  fp,
size_t  maxLeftCol,
const struct poptOption opt,
const char *  translation_domain 
) [static]

Display help text for an option.

Parameters:
fp output file handle
maxLeftCol largest argument display width
opt option(s)
translation_domain translation domain

Definition at line 217 of file popthelp.c.

static size_t singleOptionUsage ( FILE *  fp,
size_t  cursor,
const struct poptOption opt,
const char *  translation_domain 
) [static]

Display usage text for an option.

Parameters:
fp output file handle
cursor current display position
opt option(s)
translation_domain translation domain

Definition at line 583 of file popthelp.c.

static void singleTableHelp ( poptContext  con,
FILE *  fp,
const struct poptOption table,
size_t  left,
const char *  translation_domain 
) [static]

Display help text for a table of options.

Parameters:
con context
fp output file handle
table option(s)
left largest argument display width
translation_domain translation domain

Definition at line 498 of file popthelp.c.

static size_t singleTableUsage ( poptContext  con,
FILE *  fp,
size_t  cursor,
const struct poptOption opt,
const char *  translation_domain,
poptDone  done 
) [static]

Display usage text for a table of options.

Parameters:
con context
fp output file handle
cursor current display position
opt option(s)
translation_domain translation domain
done tables already processed
Returns:

Definition at line 702 of file popthelp.c.


Variable Documentation

struct poptOption poptAliasOptions[]

Initial value:

Empty table marker to enable displaying popt alias/exec options.

Definition at line 52 of file popthelp.c.

struct poptOption poptHelpOptions[]

Initial value:

 {
  { NULL, '\0', POPT_ARG_CALLBACK, (void *)&displayArgs, '\0', NULL, NULL },
  { "help", '?', 0, NULL, '?',  "Show this help message" , NULL },
  { "usage", '\0', 0, NULL, 'u',  "Display brief usage message" , NULL },
    POPT_TABLEEND
}
Auto help table options.

Definition at line 61 of file popthelp.c.

Referenced by findOption().

struct poptOption poptHelpOptions2[] [static]

Initial value:

 {

  { NULL, '\0', POPT_ARG_INTL_DOMAIN, PACKAGE, 0, NULL, NULL},

  { NULL, '\0', POPT_ARG_CALLBACK, (void *)&displayArgs, '\0', NULL, NULL },
  { "help", '?', 0, NULL, '?',  "Show this help message" , NULL },
  { "usage", '\0', 0, NULL, 'u',  "Display brief usage message" , NULL },




    POPT_TABLEEND
}

Definition at line 69 of file popthelp.c.

struct poptOption* poptHelpOptionsI18N = poptHelpOptions2

Definition at line 84 of file popthelp.c.

Referenced by findOption().


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