From adc93f6097615f16d57e8a24a256302f2144ec4e Mon Sep 17 00:00:00 2001 From: rsc Date: Fri, 14 Jan 2005 17:37:50 +0000 Subject: cut out the html - they're going to cause diffing problems. --- man/man3/arg.html | 152 ------------------------------------------------------ 1 file changed, 152 deletions(-) delete mode 100644 man/man3/arg.html (limited to 'man/man3/arg.html') diff --git a/man/man3/arg.html b/man/man3/arg.html deleted file mode 100644 index 8ca66c80..00000000 --- a/man/man3/arg.html +++ /dev/null @@ -1,152 +0,0 @@ - -arg(3) - Plan 9 from User Space - - - - -
-
-
ARG(3)ARG(3) -
-
-

NAME
- -
- - ARGBEGIN, ARGEND, ARGC, ARGF, EARGF, arginit, argopt – process - option letters from argv
- -
-

SYNOPSIS
- -
- - #include <u.h>
- #include <libc.h> -
- - ARGBEGIN {
- char *ARGF();
- char *EARGF(code);
- Rune ARGC();
- } ARGEND
- -
- - extern char *argv0;
- -
-

DESCRIPTION
- -
- - These macros assume the names argc and argv are in scope; see - exec(3). ARGBEGIN and ARGEND surround code for processing program - options. The code should be the cases of a C switch on option - characters; it is executed once for each option character. Options - end after an argument −−, before an argument −, or - before an argument that doesn’t begin with −. -
- - The function macro ARGC returns the current option character, - as an integer. -
- - The function macro ARGF returns the current option argument: a - pointer to the rest of the option string if not empty, or the - next argument in argv if any, or 0. ARGF must be called just once - for each option that takes an argument. The macro EARGF is like - ARGF but instead of returning zero runs code and, if that - returns, calls abort(3). A typical value for code is usage(), - as in EARGF(usage()). -
- - After ARGBEGIN, argv0 is a copy of argv[0] (conventionally the - name of the program). -
- - After ARGEND, argv points at a zero-terminated list of the remaining - argc arguments.
- -
-

EXAMPLE
- -
- - This C program can take option b and option f, which requires - an argument.
- -
- - #include <u.h>
- #include <libc.h>
- void
- main(int argc, char *argv[])
- {
- -
- - char *f;
- print("%s", argv[0]);
- ARGBEGIN {
- case 'b':
- print(" −b");
- break;
- case 'f':
- print(" −f(%s)", (f=ARGF())? f: "no arg");
- break;
- default:
- print(" badflag('%c')", ARGC());
- } ARGEND
- print(" %d args:", argc);
- while(*argv)
- print(" '%s'", *argv++);
- print("\n");
- exits(nil);
- -
- }
- -
- - -
- Here is the output from running the command prog −bffile1 −r −f - file2 arg1 arg2
- -
- - prog −b −f(file1) badflag('r') −f(file2) 2 args: 'arg1' 'arg2' - -
- -
- -
- - - -
- -
-

SOURCE
- -
- - /usr/local/plan9/include/libc.h
- -
- -

 -
-
- - -
-
-
-Space Glenda -
-
- - -- cgit v1.2.3