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- /* 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");
- }
-