initial commit

test/Makefile

@@ -0,0 +1,23 @@
+CC = cc
+LDFLAGS = -lreadopt
+MACROS = -D_POSIX_C_SOURCE=200809L
+CFLAGS = $(MACROS) --std=c99 -O2 -g -Wall -Wextra -Wpedantic
+
+SOURCES = test.c
+OBJECTS = $(SOURCES:.c=.o)
+
+RM = rm -f --
+CP = cp --
+
+all: test
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c $<
+
+test: $(OBJECTS)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+clean:
+	$(RM) $(OBJECTS)
+
+.PHONY: clean

test/build.ninja

@@ -0,0 +1,16 @@
+# vim: set tabstop=2 shiftwidth=2 expandtab :
+
+include config.ninja
+
+rule compile
+  command = $cc $cflags -c -o $out $in
+
+rule link
+  command = $cc $cflags -o $out $in $ldflags $ldlibs
+
+build ./test.o: compile ./test.c
+build $target: link ./test.o
+
+build all: phony $target
+
+default all

test/config.ninja

@@ -0,0 +1,9 @@
+# vim: set tabstop=2 shiftwidth=2 expandtab :
+
+cc      = cc
+macros  = -D _POSIX_C_SOURCE=200809L -D NDEBUG
+cflags  = --std=c99 -Wall -Wextra -Wpedantic -g $macros -O2
+ldflags =
+ldlibs  = -lreadopt
+
+target  = ./test

test/test.c

@@ -0,0 +1,198 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <stdint.h>
+
+#include <readopt.h>
+
+int
+main(int argc, char **argv)
+{
+	if (!*argv)
+		return EXIT_FAILURE;
+
+	struct readopt_opt opts[] = {
+		{
+			.names = {
+				[READOPT_FORM_SHORT] = READOPT_ALLOC_STRINGS("e", "x"),
+				[READOPT_FORM_LONG] = READOPT_ALLOC_STRINGS("expr", "expression")
+			},
+			.cont = {
+				.req = 1,
+				.oper.bounds.val = {1, 4}
+			}
+		},
+		{
+			.names = {
+				[READOPT_FORM_SHORT] = READOPT_ALLOC_STRINGS("c"),
+				[READOPT_FORM_LONG] = READOPT_ALLOC_STRINGS("config")
+			},
+			.cont = {
+				.req = 1,
+				.oper = {
+					.name = "file",
+					.bounds.val = {2},
+				}
+			}
+		},
+		{
+			.names = {
+				[READOPT_FORM_SHORT] = READOPT_ALLOC_STRINGS("i"),
+				[READOPT_FORM_LONG] = READOPT_ALLOC_STRINGS("uri")
+			},
+			.cont = {
+				.req = 1,
+				.oper.bounds.inf = 1
+			}
+		},
+		{
+			.names = {
+				[READOPT_FORM_SHORT] = READOPT_ALLOC_STRINGS("b"),
+				[READOPT_FORM_LONG] = READOPT_ALLOC_STRINGS("backup", "backup-file")
+			},
+			.cont = {
+				.req = 1,
+				.oper.bounds.inf = 1
+			}
+		},
+		{
+			.names = {
+				[READOPT_FORM_SHORT] = READOPT_ALLOC_STRINGS("v"),
+				[READOPT_FORM_LONG] = READOPT_ALLOC_STRINGS("verbose")
+			},
+			.cont.oper.bounds.val = {3}
+		},
+		{
+			.names = {
+				[READOPT_FORM_SHORT] = READOPT_ALLOC_STRINGS("s"),
+				[READOPT_FORM_LONG] = READOPT_ALLOC_STRINGS("sort")
+			},
+			.cont.oper.bounds.inf = 1
+		},
+		{
+			.names = {
+				[READOPT_FORM_LONG] = READOPT_ALLOC_STRINGS("help")
+			},
+			.cont.oper.bounds.val = {1}
+		},
+		{
+			.names = {
+				[READOPT_FORM_SHORT] = READOPT_ALLOC_STRINGS("V"),
+				[READOPT_FORM_LONG] = READOPT_ALLOC_STRINGS("version")
+			},
+			.cont.oper.bounds.val = {1}
+		},
+		{0}
+	};
+
+	struct readopt_oper opers[] = {
+		{
+			.name = "pattern",
+			.bounds.inf = 1
+		},
+		{
+			.name = "file",
+			.bounds = {
+				.val = {1},
+				.inf = 1
+			}
+		},
+		{
+			.name = "name",
+			.bounds = {
+				.val = {1},
+				.inf = 1
+			}
+		},
+		{0}
+	};
+
+	struct readopt_parser rp = readopt_parser_create(
+		opts,
+		opers,
+		(struct readopt_view_strings){
+			.strings = argv + 1,
+			.len = argc - 1
+		}
+	);
+
+	struct readopt_answer answer = readopt_parse_all(&rp);
+
+	fputs("status: ", stderr);
+	readopt_put_status(answer.status, &(struct readopt_write_context){
+		.dest.stream = stderr
+	});
+	fputc('\n', stderr);
+	if (answer.status != READOPT_STATUS_SUCCESS) {
+		return EXIT_FAILURE;
+	}
+
+	printf("opt:\n");
+	{
+		struct readopt_opt *curr = rp.opts;
+		for (size_t i = 0; readopt_validate_opt(curr + i); i++) {
+			for (size_t j = 0; j < sizeof curr[i].names / sizeof *curr[i].names; j++) {
+				if (curr[i].names[j]) {
+					for (size_t k = 0; curr[i].names[j][k]; k++) {
+						printf("%s ", curr[i].names[j][k]);
+					}
+				}
+			}
+			printf("{ [%zu] ", curr[i].cont.oper.val.len);
+			if (curr[i].cont.req) {
+				struct readopt_view_strings val = curr[i].cont.oper.val;
+				for (size_t j = 0; j < val.len; j++) {
+					printf("%s ", val.strings[j]);
+				}
+			}
+			printf("}\n");
+		}
+	}
+
+	printf("oper:\n");
+	{
+		struct readopt_oper *curr = rp.opers;
+		for (size_t i = 0; readopt_validate_oper(curr + i); i++) {
+			printf("%s { [%zu] ", curr[i].name, curr[i].val.len);
+			for (size_t j = 0; j < curr[i].val.len; j++) {
+				printf("%s ", curr[i].val.strings[j]);
+			}
+			printf("}\n");
+		}
+	}
+
+	printf("usage (plain) (stream):\n");
+	readopt_put_usage(&rp, &(struct readopt_format_context){
+		.fmt = READOPT_FORMAT_PLAIN,
+		.wr = &(struct readopt_write_context){
+			.dest.stream = stdout,
+		}
+	});
+	printf("\nusage (mdoc) (stream):\n");
+	readopt_put_usage(&rp, &(struct readopt_format_context){
+		.fmt = READOPT_FORMAT_MDOC,
+		.wr = &(struct readopt_write_context){
+			.dest.stream = stdout,
+		}
+	});
+
+	size_t sz = 0;
+	char *buf = NULL;
+	/* alternatively, use fmemopen and increase the buffer size via the callback */
+	FILE *stream = open_memstream(&buf, &sz);
+	readopt_put_usage(&rp, &(struct readopt_format_context){
+		.fmt = READOPT_FORMAT_MDOC,
+		.wr = &(struct readopt_write_context){
+			.dest = {
+				.stream = stream,
+				.size = SIZE_MAX
+			}
+		}
+	});
+	fflush(stream);
+	printf("usage (mdoc) (buffer):\n%s", buf);
+	fclose(stream);
+	free(buf);
+
+	return 0;
+}

test/test.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+./test \
+	-e a \
+	--expr b \
+	c \
+	-xd \
+	e \
+	--expression=f \
+	g \
+	-c h \
+	--config=i \
+	--uri j \
+	k \
+	-il \
+	-b m \
+	--backup n \
+	--backup-file=o \
+	p \
+	q \
+	-vv \
+	r \
+	-v \
+	-s \
+	s \
+	t \
+	--sort \
+	u \
+	v \
+	--help \
+	w \
+	--version \
+	-- \
+	x \
+	y \
+	z