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Some key bits.

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This commit is contained in:
Nicholas Marriott
2026-06-30 15:14:54 +01:00
parent b48e2ea8e9
commit 9569c57fc3
7 changed files with 119 additions and 45 deletions
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73
cmd-parse.y
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@@ -697,13 +697,13 @@ struct cmd_parse_tree *
cmd_parse_from_node(struct cmd_parse_node *node)
{
struct cmd_parse_tree *new;
struct cmd_parse_node *root, *child;
struct cmd_parse_node *root, *child, *copy;
root = cmd_parse_new_node(CMD_PARSE_ROOT, node->line);
root->end_line = node->end_line;
TAILQ_FOREACH(child, &node->children, entry) {
TAILQ_INSERT_TAIL(&root->children, cmd_parse_copy_node(child),
entry);
copy = cmd_parse_copy_node(child);
TAILQ_INSERT_TAIL(&root->children, copy, entry);
}
new = xcalloc(1, sizeof *new);
@@ -712,6 +712,73 @@ cmd_parse_from_node(struct cmd_parse_node *node)
return (new);
}
/* Build a string node with a single literal text child. */
static struct cmd_parse_node *
cmd_parse_new_string_node(const char *s, u_int line)
{
struct cmd_parse_node *string, *text;
string = cmd_parse_new_node(CMD_PARSE_STRING, line);
if (*s != '\0') {
text = cmd_parse_new_node(CMD_PARSE_TEXT, line);
text->value = xstrdup(s);
TAILQ_INSERT_TAIL(&string->children, text, entry);
}
return (string);
}
/* Build a commands node from a copy of the children of a tree's root. */
static struct cmd_parse_node *
cmd_parse_new_commands_node(struct cmd_parse_tree *tree, u_int line)
{
struct cmd_parse_node *commands, *root, *child, *copy;
commands = cmd_parse_new_node(CMD_PARSE_COMMANDS, line);
root = cmd_parse_root(tree);
TAILQ_FOREACH(child, &root->children, entry) {
copy = cmd_parse_copy_node(child);
TAILQ_INSERT_TAIL(&commands->children, copy, entry);
}
return (commands);
}
/* Build a parse tree directly from existing argument values. */
struct cmd_parse_tree *
cmd_parse_from_arguments(struct args_value *values, u_int count)
{
struct cmd_parse_tree *new;
struct cmd_parse_node *root, *seq, *cmd, *child;
u_int i;
cmd = cmd_parse_new_node(CMD_PARSE_COMMAND, 0);
for (i = 0; i < count; i++) {
switch (values[i].type) {
case ARGS_NONE:
continue;
case ARGS_STRING:
child = cmd_parse_new_string_node(values[i].string, 0);
break;
case ARGS_COMMANDS:
child = cmd_parse_new_commands_node(values[i].cmd, 0);
break;
}
TAILQ_INSERT_TAIL(&cmd->children, child, entry);
}
seq = cmd_parse_new_node(CMD_PARSE_SEQUENCE, 0);
TAILQ_INSERT_TAIL(&seq->children, cmd, entry);
root = cmd_parse_new_node(CMD_PARSE_ROOT, 0);
TAILQ_INSERT_TAIL(&root->children, seq, entry);
new = xcalloc(1, sizeof *new);
new->references = 1;
new->root = root;
return (new);
}
struct cmd_parse_tree *
cmd_parse_add_ref(struct cmd_parse_tree *tree)
{