source: libcfa/src/parseargs.hfa @ e25ef8c

Last change on this file since e25ef8c was a4e1b09, checked in by Peter A. Buhr <pabuhr@…>, 5 months ago

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1//
2// Cforall Version 1.0.0 Copyright (C) 2022 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// parseargs.cfa -- PUBLIC
8// API for arguments parsing (argc, argv)
9//
10// Author           : Thierry Delisle
11// Created On       : Wed Oct 12 15:28:01 2022
12// Last Modified By : Peter A. Buhr
13// Last Modified On : Mon Jul  8 18:18:14 2024
14// Update Count     : 2
15//
16#pragma once
17
18#include <array.hfa>
19
20struct cfa_option {
21        int val; // reserved
22        char short_name;
23        const char * long_name;
24        const char * help;
25        void * variable;
26        bool (*parse)(const char *, void * );
27};
28
29extern cfa_option last_option;
30
31static inline void ?{}( cfa_option & this ) {}
32
33forall(T & | { bool parse( const char *, T & ); })
34static inline void ?{}( cfa_option & this, char short_name, const char * long_name, const char * help, T & variable ) {
35        this.val        = 0;
36        this.short_name = short_name;
37        this.long_name  = long_name;
38        this.help       = help;
39        this.variable   = (void*)&variable;
40        this.parse      = (bool (*)(const char *, void * ))parse;
41}
42
43forall(T &)
44static inline void ?{}( cfa_option & this, char short_name, const char * long_name, const char * help, T & variable, bool (*parse)(const char *, T & )) {
45        this.val        = 0;
46        this.short_name = short_name;
47        this.long_name  = long_name;
48        this.help       = help;
49        this.variable   = (void*)&variable;
50        this.parse      = (bool (*)(const char *, void * ))parse;
51}
52
53void parse_args( cfa_option options[], size_t opt_count, const char * usage, char ** & left );
54void parse_args( int argc, char * argv[], cfa_option options[], size_t opt_count, const char * usage, char ** & left );
55
56forall( [N] ) {
57        void parse_args( const array( cfa_option, N ) & options, const char * usage, char ** & left );
58        void parse_args( int argc, char * argv[], const array( cfa_option, N ) & options, const char * usage, char ** & left );
59}
60
61void print_args_usage(cfa_option options[], size_t opt_count, const char * usage, bool error)  __attribute__ ((noreturn));
62void print_args_usage(int argc, char * argv[], cfa_option options[], size_t opt_count, const char * usage, bool error)  __attribute__ ((noreturn));
63
64forall( [N] ) {
65        void print_args_usage( const array(cfa_option, N ) & options, const char * usage, bool error)  __attribute__ ((noreturn));
66        void print_args_usage(int argc, char * argv[], const array( cfa_option, N ) & options, const char * usage, bool error)  __attribute__ ((noreturn));
67}
68
69bool parse_yesno    (const char *, bool & );
70bool parse_truefalse(const char *, bool & );
71bool parse_settrue  (const char *, bool & );
72bool parse_setfalse (const char *, bool & );
73
74bool parse(const char *, const char * & );
75bool parse(const char *, int & );
76bool parse(const char *, unsigned & );
77bool parse(const char *, unsigned long & );
78bool parse(const char *, unsigned long long & );
79bool parse(const char *, double & );
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