-/*
- * Copyright (c) 2016, Olivier MATZ <zer0@droids-corp.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the University of California, Berkeley nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2016, Olivier MATZ <zer0@droids-corp.org>
*/
#define _GNU_SOURCE /* for asprintf */
#include <stdlib.h>
#include <stdio.h>
+#include <errno.h>
#include <assert.h>
#include <readline/readline.h>
#include <readline/history.h>
+#include <ecoli_init.h>
#include <ecoli_node.h>
-#include <ecoli_parsed.h>
-#include <ecoli_completed.h>
+#include <ecoli_parse.h>
+#include <ecoli_complete.h>
#include <ecoli_keyval.h>
#include <ecoli_node_str.h>
#include <ecoli_node_seq.h>
static char *my_completion_entry(const char *s, int state)
{
- static struct ec_completed *c;
- static struct ec_completed_iter *iter;
- static const struct ec_completed_item *item;
+ static struct ec_comp *c;
+ static struct ec_comp_iter *iter;
+ const struct ec_comp_item *item;
+ enum ec_comp_type item_type;
+ const char *item_str, *item_display;
(void)s;
- /* don't append a quote */
+ /* Don't append a quote. Note: there are still some bugs when
+ * completing a quoted token. */
rl_completion_suppress_quote = 1;
- rl_basic_quote_characters = "";
+ rl_completer_quote_characters = "\"'";
if (state == 0) {
char *line;
- ec_completed_free(c);
-
+ ec_comp_free(c);
line = strdup(rl_line_buffer);
if (line == NULL)
return NULL;
if (c == NULL)
return NULL;
- ec_completed_iter_free(iter);
- iter = ec_completed_iter(c, EC_MATCH | EC_PARTIAL_MATCH);
+ ec_comp_iter_free(iter);
+ iter = ec_comp_iter(c, EC_COMP_FULL | EC_COMP_PARTIAL);
if (iter == NULL)
return NULL;
}
- item = ec_completed_iter_next(iter);
+ item = ec_comp_iter_next(iter);
if (item == NULL)
return NULL;
- if (c->count_match == 1) {
+ item_str = ec_comp_item_get_str(item);
+ if (c->count_full == 1) {
/* don't add the trailing space for partial completions */
if (state == 0) {
- if (item->type == EC_MATCH)
+ item_type = ec_comp_item_get_type(item);
+ if (item_type == EC_COMP_FULL)
rl_completion_suppress_append = 0;
else
rl_completion_suppress_append = 1;
}
- return strdup(item->str);
+ return strdup(item_str);
} else if (rl_completion_type == '?') {
/* on second try only show the display part */
- return strdup(item->display);
+ item_display = ec_comp_item_get_display(item);
+ return strdup(item_display);
}
- return strdup(item->str);
+ return strdup(item_str);
}
static char **my_attempted_completion(const char *text, int start, int end)
}
/* this function builds the help string */
-static char *get_node_help(const struct ec_completed_node *compnode)
+static char *get_node_help(const struct ec_comp_item *item)
{
- const struct ec_completed_item *item;
+ const struct ec_comp_group *grp;
+ const struct ec_parse *state;
const struct ec_node *node;
char *help = NULL;
const char *node_help = NULL;
const char *node_desc = NULL;
- size_t i;
-
- /* Since we display only one help per node, only look at the first item
- * to get the path. The objective is to retrieve the most precise
- * help for this node. */
- item = TAILQ_FIRST(&compnode->items);
- for (i = 0; i < item->pathlen; i++) {
- node = item->path[i];
+
+ grp = ec_comp_item_get_grp(item);
+ state = grp->state;
+ for (state = grp->state; state != NULL;
+ state = ec_parse_get_parent(state)) {
+ node = ec_parse_get_node(state);
if (node_help == NULL)
node_help = ec_keyval_get(ec_node_attrs(node), "help");
if (node_desc == NULL)
}
if (node_help == NULL)
- node_help = "";
+ node_help = "-";
if (node_desc == NULL)
return NULL;
static int show_help(int ignore, int invoking_key)
{
- const struct ec_completed_node *compnode;
- struct ec_completed *c;
- struct ec_parsed *p;
- char *line;
- unsigned int count, i;
+ struct ec_comp_iter *iter = NULL;
+ const struct ec_comp_group *grp, *prev_grp = NULL;
+ const struct ec_comp_item *item;
+ struct ec_comp *c = NULL;
+ struct ec_parse *p = NULL;
+ char *line = NULL;
+ unsigned int count;
char **helps = NULL;
int match = 0;
+ int cols;
(void)ignore;
(void)invoking_key;
line = strdup(rl_line_buffer);
if (line == NULL)
- return 1;
+ goto fail;
/* check if the current line matches */
p = ec_node_parse(commands, line);
- if (ec_parsed_matches(p))
+ if (ec_parse_matches(p))
match = 1;
- ec_parsed_free(p);
+ ec_parse_free(p);
+ p = NULL;
/* complete at current cursor position */
line[rl_point] = '\0';
c = ec_node_complete(commands, line);
- //ec_completed_dump(stdout, c);
free(line);
+ line = NULL;
if (c == NULL)
- return 1;
+ goto fail;
/* let's display one contextual help per node */
count = 0;
- TAILQ_FOREACH(compnode, &c->nodes, next) {
- if (TAILQ_EMPTY(&compnode->items))
- continue;
- count++;
- }
+ iter = ec_comp_iter(c,
+ EC_COMP_UNKNOWN | EC_COMP_FULL | EC_COMP_PARTIAL);
+ if (iter == NULL)
+ goto fail;
- helps = calloc(count + match + 1, sizeof(char *));
+ /* strangely, rl_display_match_list() expects first index at 1 */
+ helps = calloc(match + 1, sizeof(char *));
if (helps == NULL)
- return 1;
-
+ goto fail;
if (match)
helps[1] = "<return>";
- /* strangely, rl_display_match_list() expects first index at 1 */
- i = match + 1;
- TAILQ_FOREACH(compnode, &c->nodes, next) {
- if (TAILQ_EMPTY(&compnode->items))
+ while ((item = ec_comp_iter_next(iter)) != NULL) {
+ char **tmp;
+
+ /* keep one help per group, skip other items */
+ grp = ec_comp_item_get_grp(item);
+ if (grp == prev_grp)
continue;
- helps[i++] = get_node_help(compnode);
- }
- ec_completed_free(c);
+ prev_grp = grp;
- rl_display_match_list(helps, count + match, 1000); /* XXX 1000 */
+ tmp = realloc(helps, (count + match + 2) * sizeof(char *));
+ if (tmp == NULL)
+ goto fail;
+ helps = tmp;
+ helps[count + match + 1] = get_node_help(item);
+ count++;
+ }
+ ec_comp_iter_free(iter);
+ ec_comp_free(c);
+ /* ensure not more than 1 entry per line */
+ rl_get_screen_size(NULL, &cols);
+ rl_display_match_list(helps, count + match, cols);
rl_forced_update_display();
return 0;
- // free helps[n] XXX on error ?
+fail:
+ ec_comp_iter_free(iter);
+ ec_parse_free(p);
+ free(line);
+ ec_comp_free(c);
+ if (helps != NULL) {
+ while (count--)
+ free(helps[count + match + 1]);
+ }
+ free(helps);
+
+ return 1;
}
static int create_commands(void)
{
struct ec_node *cmdlist = NULL, *cmd = NULL;
- cmdlist = ec_node("or", NULL);
+ cmdlist = ec_node("or", EC_NO_ID);
if (cmdlist == NULL)
goto fail;
- cmd = EC_NODE_SEQ(NULL,
- ec_node_str(NULL, "hello"),
+ cmd = EC_NODE_SEQ(EC_NO_ID,
+ ec_node_str(EC_NO_ID, "hello"),
EC_NODE_OR("name",
ec_node_str("john", "john"),
- ec_node_str(NULL, "johnny"),
- ec_node_str(NULL, "mike")
+ ec_node_str(EC_NO_ID, "johnny"),
+ ec_node_str(EC_NO_ID, "mike")
),
- ec_node_option(NULL, ec_node_int("int", 0, 10, 10))
+ ec_node_option(EC_NO_ID, ec_node_int("int", 0, 10, 10))
);
if (cmd == NULL)
goto fail;
goto fail;
- cmd = EC_NODE_CMD(NULL, "good morning name [count]",
+ cmd = EC_NODE_CMD(EC_NO_ID, "good morning name [count]",
EC_NODE_CMD("name", "bob|bobby|michael"),
ec_node_int("count", 0, 10, 10));
if (cmd == NULL)
ec_keyval_set(ec_node_attrs(ec_node_find(cmd, "name")), "help",
"the person to greet", NULL);
ec_keyval_set(ec_node_attrs(ec_node_find(cmd, "count")), "help",
- "how many times to greet", NULL);
+ "how many times to greet (0-10)", NULL);
if (ec_node_or_add(cmdlist, cmd) < 0)
goto fail;
- cmd = EC_NODE_CMD(NULL,
+ cmd = EC_NODE_CMD(EC_NO_ID,
"buy potatoes,carrots,pumpkins");
if (cmd == NULL)
goto fail;
goto fail;
- cmd = EC_NODE_CMD(NULL, "eat vegetables",
+ cmd = EC_NODE_CMD(EC_NO_ID, "eat vegetables",
ec_node_many("vegetables",
- EC_NODE_OR(NULL,
- ec_node_str(NULL, "potatoes"),
- ec_node_once(NULL,
- ec_node_str(NULL, "carrots")),
- ec_node_once(NULL,
- ec_node_str(NULL, "pumpkins"))),
+ EC_NODE_OR(EC_NO_ID,
+ ec_node_str(EC_NO_ID, "potatoes"),
+ ec_node_once(EC_NO_ID,
+ ec_node_str(EC_NO_ID, "carrots")),
+ ec_node_once(EC_NO_ID,
+ ec_node_str(EC_NO_ID, "pumpkins"))),
1, 0));
if (cmd == NULL)
goto fail;
goto fail;
- cmd = EC_NODE_SEQ(NULL,
- ec_node_str(NULL, "bye")
+ cmd = EC_NODE_SEQ(EC_NO_ID,
+ ec_node_str(EC_NO_ID, "bye")
);
ec_keyval_set(ec_node_attrs(cmd), "help", "say bye", NULL);
if (ec_node_or_add(cmdlist, cmd) < 0)
goto fail;
- cmd = EC_NODE_SEQ(NULL,
- ec_node_str(NULL, "load"),
- ec_node("file", NULL)
+ cmd = EC_NODE_SEQ(EC_NO_ID,
+ ec_node_str(EC_NO_ID, "load"),
+ ec_node("file", EC_NO_ID)
);
ec_keyval_set(ec_node_attrs(cmd), "help", "load a file", NULL);
if (ec_node_or_add(cmdlist, cmd) < 0)
goto fail;
- commands = ec_node_sh_lex(NULL, cmdlist);
+ commands = ec_node_sh_lex(EC_NO_ID, cmdlist);
if (commands == NULL)
goto fail;
int main(void)
{
- struct ec_parsed *p;
+ struct ec_parse *p;
char *line;
+ if (ec_init() < 0) {
+ fprintf(stderr, "cannot init ecoli: %s\n", strerror(errno));
+ return 1;
+ }
+
if (create_commands() < 0)
return 1;
break;
p = ec_node_parse(commands, line);
- ec_parsed_dump(stdout, p);
+ ec_parse_dump(stdout, p);
add_history(line);
- ec_parsed_free(p);
+ ec_parse_free(p);
}
git.droids-corp.org / protos / libecoli.git / blobdiff