yanglint REFACTOR new yl_opt and cmd callbacks
The yanglint options were stored in non-interactive mode in the
structure named 'context'. This structure was renamed to yl_opt
and is now also used in the interactive mode, which has also been
expanded with new callbacks. These callbacks are the basis for
further refactoring commits, which aim to reduce duplicate code
between interactive and non-interactive modes to a minimum.
diff --git a/tools/lint/yl_opt.c b/tools/lint/yl_opt.c
new file mode 100644
index 0000000..1e5eb39
--- /dev/null
+++ b/tools/lint/yl_opt.c
@@ -0,0 +1,187 @@
+/**
+ * @file yl_opt.c
+ * @author Adam Piecek <piecek@cesnet.cz>
+ * @brief Settings options for the libyang context.
+ *
+ * Copyright (c) 2020 - 2023 CESNET, z.s.p.o.
+ *
+ * This source code is licensed under BSD 3-Clause License (the "License").
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ */
+
+#define _GNU_SOURCE
+
+#include <assert.h>
+#include <errno.h>
+#include <getopt.h>
+#include <strings.h>
+
+#include "in.h" /* ly_in_free */
+
+#include "common.h"
+#include "yl_opt.h"
+
+struct cmdline_file *
+fill_cmdline_file(struct ly_set *set, struct ly_in *in, const char *path, LYD_FORMAT format)
+{
+ struct cmdline_file *rec;
+
+ rec = malloc(sizeof *rec);
+ if (!rec) {
+ YLMSG_E("Allocating memory for data file information failed.\n");
+ return NULL;
+ }
+ rec->in = in;
+ rec->path = path;
+ rec->format = format;
+
+ if (set && ly_set_add(set, rec, 1, NULL)) {
+ free(rec);
+ YLMSG_E("Storing data file information failed.\n");
+ return NULL;
+ }
+
+ return rec;
+}
+
+void
+free_cmdline_file_items(struct cmdline_file *rec)
+{
+ if (rec && rec->in) {
+ ly_in_free(rec->in, 1);
+ }
+}
+
+void
+free_cmdline_file(void *cmdline_file)
+{
+ struct cmdline_file *rec = (struct cmdline_file *)cmdline_file;
+
+ if (rec) {
+ free_cmdline_file_items(rec);
+ free(rec);
+ }
+}
+
+void
+yl_opt_erase(struct yl_opt *yo)
+{
+ ly_bool interactive;
+
+ interactive = yo->interactive;
+
+ /* data */
+ ly_set_erase(&yo->data_inputs, free_cmdline_file);
+ ly_in_free(yo->data_operational.in, 1);
+ ly_set_erase(&yo->data_xpath, NULL);
+
+ /* schema */
+ ly_set_erase(&yo->schema_features, free_features);
+ ly_set_erase(&yo->schema_modules, NULL);
+ free(yo->features_output);
+
+ /* context */
+ free(yo->searchpaths);
+
+ /* --reply-rpc */
+ ly_in_free(yo->reply_rpc.in, 1);
+
+ ly_out_free(yo->out, NULL, yo->out_stdout ? 0 : 1);
+
+ free_cmdline(yo->argv);
+
+ *yo = (const struct yl_opt) {
+ 0
+ };
+ yo->interactive = interactive;
+}
+
+void
+free_cmdline(char *argv[])
+{
+ if (argv) {
+ free(argv[0]);
+ free(argv);
+ }
+}
+
+int
+parse_cmdline(const char *cmdline, int *argc_p, char **argv_p[])
+{
+ int count;
+ char **vector;
+ char *ptr;
+ char qmark = 0;
+
+ assert(cmdline);
+ assert(argc_p);
+ assert(argv_p);
+
+ /* init */
+ optind = 0; /* reinitialize getopt() */
+ count = 1;
+ vector = malloc((count + 1) * sizeof *vector);
+ vector[0] = strdup(cmdline);
+
+ /* command name */
+ strtok(vector[0], " ");
+
+ /* arguments */
+ while ((ptr = strtok(NULL, " "))) {
+ size_t len;
+ void *r;
+
+ len = strlen(ptr);
+
+ if (qmark) {
+ /* still in quotated text */
+ /* remove NULL termination of the previous token since it is not a token,
+ * but a part of the quotation string */
+ ptr[-1] = ' ';
+
+ if ((ptr[len - 1] == qmark) && (ptr[len - 2] != '\\')) {
+ /* end of quotation */
+ qmark = 0;
+ /* shorten the argument by the terminating quotation mark */
+ ptr[len - 1] = '\0';
+ }
+ continue;
+ }
+
+ /* another token in cmdline */
+ ++count;
+ r = realloc(vector, (count + 1) * sizeof *vector);
+ if (!r) {
+ YLMSG_E("Memory allocation failed (%s:%d, %s).\n", __FILE__, __LINE__, strerror(errno));
+ free(vector);
+ return -1;
+ }
+ vector = r;
+ vector[count - 1] = ptr;
+
+ if ((ptr[0] == '"') || (ptr[0] == '\'')) {
+ /* remember the quotation mark to identify end of quotation */
+ qmark = ptr[0];
+
+ /* move the remembered argument after the quotation mark */
+ ++vector[count - 1];
+
+ /* check if the quotation is terminated within this token */
+ if ((ptr[len - 1] == qmark) && (ptr[len - 2] != '\\')) {
+ /* end of quotation */
+ qmark = 0;
+ /* shorten the argument by the terminating quotation mark */
+ ptr[len - 1] = '\0';
+ }
+ }
+ }
+ vector[count] = NULL;
+
+ *argc_p = count;
+ *argv_p = vector;
+
+ return 0;
+}