poafloc

Parser Of Arguments For Lines Of Commands
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commit3cdb743888aa56c5e5301858e24973284a311946
parent0ab5aaf2158b43e4fa1423450384ed51a6c9cbd2
authorDimitrije Dobrota <mail@dimitrijedobrota.com>
dateSat, 8 Jun 2024 20:05:12 +0200

Add support for 2 part message in --help

Diffstat:
Margs.hpp|+++++++++++
Mdemo.cpp|++++++-

2 files changed, 17 insertions(+), 1 deletions(-)

diff --git a/args.hpp b/args.hpp

@@ -42,6 +42,7 @@ class Parser {

const option_t *options;
const parse_f parser;
const char *doc;
const char *message;
};
Parser(argp_t *argp) : argp(argp) {

@@ -318,8 +319,16 @@ class Parser {

}
void help(const char *name) const {
std::string m1, m2;
if (argp->message) {
std::istringstream iss(argp->message);
std::getline(iss, m1, '\v');
std::getline(iss, m2, '\v');
}
std::cout << std::format("Usage: {} [OPTIONS...]", name);
print_usage(name);
if (!m1.empty()) std::cout << "\n" << m1;
std::cout << "\n\n";
for (const auto &entry : help_entries) {

@@ -377,6 +386,8 @@ class Parser {

std::cout << std::endl;
}
if (!m2.empty()) std::cout << "\n" << m2 << "\n";
exit(0);
}

diff --git a/demo.cpp b/demo.cpp

@@ -52,7 +52,12 @@ static const Parser::option_t options[] = {

// clang-format on
int main(int argc, char *argv[]) {
Parser::argp_t argp = {options, parse_opt, "doc string"};
Parser::argp_t argp = {
options,
parse_opt,
"doc string\nother usage",
"First half of the message\vsecond half of the message"
};
Parser parser(&argp);
arguments_t arguments;