Initial project import

tools/v/vlib/flag/testdata/simplest_flag_program.dashdash.help.out

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+[vlib/flag/testdata/simplest_flag_program.v:13] rest_of_args: ['--help']

tools/v/vlib/flag/testdata/simplest_flag_program.dashdash.version.out

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+[vlib/flag/testdata/simplest_flag_program.v:13] rest_of_args: ['--version']

tools/v/vlib/flag/testdata/simplest_flag_program.help.out

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+abc 0.0.1
+-----------------------------------------------
+Usage: abc [options] [ARGS]
+
+Options:
+  -h, --help                display this help and exit
+  --version                 output version information and exit

tools/v/vlib/flag/testdata/simplest_flag_program.out

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+[vlib/flag/testdata/simplest_flag_program.v:13] rest_of_args: []

tools/v/vlib/flag/testdata/simplest_flag_program.v

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+import os
+import flag
+
+fn main() {
+	mut fp := flag.new_flag_parser(os.args)
+	fp.application('abc')
+	fp.version('0.0.1')
+	fp.skip_executable()
+	rest_of_args := fp.finalize() or {
+		eprintln(err)
+		exit(1)
+	}
+	dump(rest_of_args)
+}

tools/v/vlib/flag/testdata/simplest_flag_program.version.out

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+abc 0.0.1

tools/v/vlib/flag/testdata/usage_example.help.out

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+xyz 0.0.2
+-----------------------------------------------
+Usage: xyz [NUMBER]...
+   or: xyz OPTION
+
+Description: description line 1
+description line 2
+
+Options:
+  -h, --help                display this help and exit
+  --version                 output version information and exit
+footer 1
+footer 2

tools/v/vlib/flag/testdata/usage_example.out

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+[vlib/flag/testdata/usage_example.v:16] rest_of_args: ['abc', 'def']

tools/v/vlib/flag/testdata/usage_example.v

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+import os
+import flag
+
+fn main() {
+	mut fp := flag.new_flag_parser(os.args)
+	fp.skip_executable()
+	fp.application('xyz')
+	fp.version('0.0.2')
+	fp.usage_example('[NUMBER]...')
+	fp.usage_example('OPTION')
+	fp.description('description line 1')
+	fp.description('description line 2')
+	fp.footer('footer 1')
+	fp.footer('footer 2')
+	rest_of_args := fp.remaining_parameters()
+	dump(rest_of_args)
+}

tools/v/vlib/flag/testdata/usage_example.version.out

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+xyz 0.0.2