[p5sagit/p5-mst-13.2.git] / msdos / usage.c

/*	usage.c
 *
 * Show usage message.
 */

#include <stdio.h>
#include <string.h>


usage(char *myname)
{
char	* p;
char 	* name_p;

name_p = myname;
if ( p = strrchr(myname,'/') )
	name_p = p+1;	/* point after final '/' */
#ifdef MSDOS
if ( p = strrchr(name_p,'\\') )
	name_p = p+1;	/* point after final '\\' */
if ( p = strrchr(name_p,':') )
	name_p = p+1;	/* point after final ':' */
  printf("\nUsage: %s [-acdnpsSvw] [-Dnumber] [-i[extension]] [-Idirectory]"
#else
  printf("\nUsage: %s [-acdnpPsSuUvw] [-Dnumber] [-i[extension]] [-Idirectory]"
#endif
         "\n            [-e \"command\"] [-x[directory]] [filename] [arguments]\n", name_p);

  printf("\n  -a  autosplit mode with -n or -p"
         "\n  -c  syntaxcheck only"
         "\n  -d  run scripts under debugger"
         "\n  -n  assume 'while (<>) { ...script... }' loop arround your script"
         "\n  -p  assume loop like -n but print line also like sed"
#ifndef MSDOS
         "\n  -P  run script through C preprocessor befor compilation"
#endif
         "\n  -s  enable some switch parsing for switches after script name"
         "\n  -S  look for the script using PATH environment variable");
#ifndef MSDOS
  printf("\n  -u  dump core after compiling the script"
         "\n  -U  allow unsafe operations");
#endif
  printf("\n  -v  print version number and patchlevel of perl"
         "\n  -w  turn warnings on for compilation of your script\n"
         "\n  -Dnumber        set debugging flags"
         "\n  -i[extension]   edit <> files in place (make backup if extension supplied)"
         "\n  -Idirectory     specify include directory in conjunction with -P"
         "\n  -e command      one line of script, multiple -e options are allowed"
         "\n                  [filename] can be ommitted, when -e is used"
         "\n  -x[directory]   strip off text before #!perl line and perhaps cd to directory\n");
}
Commit	Line	Data
fe14fcc3	1	/* usage.c
	2	*
	3	* Show usage message.
	4	*/
	5
	6	#include <stdio.h>
	7	#include <string.h>
	8
	9
	10	usage(char *myname)
	11	{
	12	char * p;
	13	char * name_p;
	14
	15	name_p = myname;
	16	if ( p = strrchr(myname,'/') )
	17	name_p = p+1; /* point after final '/' */
	18	#ifdef MSDOS
	19	if ( p = strrchr(name_p,'\\') )
	20	name_p = p+1; /* point after final '\\' */
	21	if ( p = strrchr(name_p,':') )
	22	name_p = p+1; /* point after final ':' */
	23	printf("\nUsage: %s [-acdnpsSvw] [-Dnumber] [-i[extension]] [-Idirectory]"
	24	#else
	25	printf("\nUsage: %s [-acdnpPsSuUvw] [-Dnumber] [-i[extension]] [-Idirectory]"
	26	#endif
	27	"\n [-e \"command\"] [-x[directory]] [filename] [arguments]\n", name_p);
	28
	29	printf("\n -a autosplit mode with -n or -p"
	30	"\n -c syntaxcheck only"
	31	"\n -d run scripts under debugger"
	32	"\n -n assume 'while (<>) { ...script... }' loop arround your script"
	33	"\n -p assume loop like -n but print line also like sed"
	34	#ifndef MSDOS
	35	"\n -P run script through C preprocessor befor compilation"
	36	#endif
	37	"\n -s enable some switch parsing for switches after script name"
	38	"\n -S look for the script using PATH environment variable");
	39	#ifndef MSDOS
	40	printf("\n -u dump core after compiling the script"
	41	"\n -U allow unsafe operations");
	42	#endif
	43	printf("\n -v print version number and patchlevel of perl"
	44	"\n -w turn warnings on for compilation of your script\n"
	45	"\n -Dnumber set debugging flags"
	46	"\n -i[extension] edit <> files in place (make backup if extension supplied)"
	47	"\n -Idirectory specify include directory in conjunction with -P"
	48	"\n -e command one line of script, multiple -e options are allowed"
	49	"\n [filename] can be ommitted, when -e is used"
	50	"\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n");
	51	}