save
[protos/libecoli.git] / lib / main-readline.c
index 8c5ffc5..b8c2f0b 100644 (file)
 #include <readline/readline.h>
 #include <readline/history.h>
 
-#include <ecoli_tk.h>
+#include <ecoli_node.h>
+#include <ecoli_parsed.h>
+#include <ecoli_completed.h>
 #include <ecoli_keyval.h>
-
-#include <ecoli_tk_str.h>
-#include <ecoli_tk_seq.h>
-#include <ecoli_tk_space.h>
-#include <ecoli_tk_or.h>
-#include <ecoli_tk_shlex.h>
-#include <ecoli_tk_int.h>
-
-static struct ec_tk *commands;
+#include <ecoli_node_str.h>
+#include <ecoli_node_seq.h>
+#include <ecoli_node_space.h>
+#include <ecoli_node_or.h>
+#include <ecoli_node_sh_lex.h>
+#include <ecoli_node_int.h>
+#include <ecoli_node_option.h>
+#include <ecoli_node_cmd.h>
+#include <ecoli_node_many.h>
+#include <ecoli_node_once.h>
+#include <ecoli_node_file.h>
+
+static struct ec_node *commands;
 
 static char *my_completion_entry(const char *s, int state)
 {
-       static struct ec_completed_tk *c;
-       static struct ec_completed_tk_iter *iter;
-       static const struct ec_completed_tk_elt *elt;
+       static struct ec_completed *c;
+       static struct ec_completed_iter *iter;
+       static const struct ec_completed_match *item;
        char *out_string;
 
+       /* don't append a quote */
+       rl_completion_suppress_quote = 1;
+       rl_basic_quote_characters = "";
 
        if (state == 0) {
                char *line;
 
-               ec_completed_tk_free(c);
+               ec_completed_free(c);
 
                line = strdup(rl_line_buffer);
                if (line == NULL)
                        return NULL;
                line[rl_point] = '\0';
 
-               c = ec_tk_complete(commands, line);
+               c = ec_node_complete(commands, line);
                free(line);
                if (c == NULL)
                        return NULL;
 
-               ec_completed_tk_iter_free(iter);
-               iter = ec_completed_tk_iter_new(c, EC_MATCH);
+               ec_completed_iter_free(iter);
+               iter = ec_completed_iter(c, EC_MATCH | EC_PARTIAL_MATCH);
                if (iter == NULL)
                        return NULL;
        }
 
-       elt = ec_completed_tk_iter_next(iter);
-       if (elt == NULL)
+       item = ec_completed_iter_next(iter);
+       if (item == NULL)
                return NULL;
 
-       if (asprintf(&out_string, "%s%s", s, elt->add) < 0)
+       /* don't add the trailing space for partial completions */
+       if (state == 0) {
+               if (item->type == EC_MATCH)
+                       rl_completion_suppress_append = 0;
+               else
+                       rl_completion_suppress_append = 1;
+       }
+
+       //XXX see printable_part() and rl_display_match_list()
+       //XXX or: if match count > 1, strip beginning (in node_file)
+
+       if (asprintf(&out_string, "%s%s", s, item->add) < 0) // XXX ec_asprintf (check all in code)
                return NULL;
 
        return out_string;
@@ -96,19 +116,28 @@ static char **my_attempted_completion(const char *text, int start, int end)
 }
 
 /* this function builds the help string */
-static char *get_tk_help(const struct ec_tk *tk)
+static char *get_node_help(const struct ec_completed_match *elt)
 {
-       const struct ec_tk *tk2;
+       const struct ec_node *node;
        char *help = NULL;
-       char *tk_help = NULL;
-
-       for (tk2 = tk; tk2 != NULL && tk_help == NULL; tk2 = ec_tk_parent(tk2))
-               tk_help = ec_keyval_get(ec_tk_attrs(tk2), "help");
+       const char *node_help = NULL;
+       const char *node_desc = NULL;
+       size_t i;
+
+       for (i = 0; i < elt->pathlen; i++) {
+               node = elt->path[i];
+               if (node_help == NULL)
+                       node_help = ec_keyval_get(ec_node_attrs(node), "help");
+               if (node_desc == NULL)
+                       node_desc = ec_node_desc(node);
+       }
 
-       if (tk_help == NULL)
-               tk_help = "";
+       if (node_help == NULL)
+               node_help = "";
+       if (node_desc == NULL)
+               return NULL;
 
-       if (asprintf(&help, "%-20s %s", ec_tk_desc(tk), tk_help) < 0)
+       if (asprintf(&help, "%-20s %s", node_desc, node_help) < 0)
                return NULL;
 
        return help;
@@ -116,12 +145,15 @@ static char *get_tk_help(const struct ec_tk *tk)
 
 static int show_help(int ignore, int invoking_key)
 {
-       const struct ec_completed_tk_elt *elt;
-       struct ec_completed_tk_iter *iter;
-       struct ec_completed_tk *c;
+       const struct ec_completed_node *compnode;
+//     const struct ec_completed_match *item;
+//     struct ec_completed_iter *iter;
+       struct ec_completed *c;
+       struct ec_parsed *p;
        char *line;
        unsigned int count, i;
        char **helps = NULL;
+       int match = 0;
 
        (void)ignore;
        (void)invoking_key;
@@ -129,39 +161,76 @@ static int show_help(int ignore, int invoking_key)
        line = strdup(rl_line_buffer);
        if (line == NULL)
                return 1;
-       line[rl_point] = '\0';
 
-       c = ec_tk_complete(commands, line);
+       /* check if the current line matches */
+       p = ec_node_parse(commands, line);
+       if (ec_parsed_matches(p))
+               match = 1;
+       ec_parsed_free(p);
+
+       /* complete at current cursor position */
+       line[rl_point] = '\0';
+       c = ec_node_complete(commands, line);
+       //ec_completed_dump(stdout, c);
        free(line);
        if (c == NULL)
                return 1;
-       //ec_completed_tk_dump(stdout, c);
 
-       count = ec_completed_tk_count(c, EC_MATCH | EC_NO_MATCH);
-       helps = calloc(count + 1, sizeof(char *));
+#if 0 // old method
+       count = ec_completed_count(c, EC_MATCH | EC_NO_MATCH |
+                               EC_PARTIAL_MATCH);
+       helps = calloc(count + match + 1, sizeof(char *));
        if (helps == NULL)
                return 1;
 
-       iter = ec_completed_tk_iter_new(c, EC_MATCH | EC_NO_MATCH);
+       if (match)
+               helps[1] = "<return>";
+
+       iter = ec_completed_iter(c, EC_MATCH | EC_NO_MATCH |
+                               EC_PARTIAL_MATCH);
        if (iter == NULL)
                goto fail;
 
        /* strangely, rl_display_match_list() expects first index at 1 */
-       for (i = 1, elt = ec_completed_tk_iter_next(iter);
-            i <= count && elt != NULL;
-            i++, elt = ec_completed_tk_iter_next(iter)) {
-               helps[i] = get_tk_help(elt->tk);
+       for (i = match + 1, item = ec_completed_iter_next(iter);
+            i < count + match + 1 && item != NULL;
+            i++, item = ec_completed_iter_next(iter)) {
+               helps[i] = get_node_help(item);
+       }
+#else
+       count = 0;
+       TAILQ_FOREACH(compnode, &c->nodes, next) {
+               if (TAILQ_EMPTY(&compnode->matches))
+                       continue;
+               count++;
+       }
+
+       helps = calloc(count + match + 1, sizeof(char *));
+       if (helps == NULL)
+               return 1;
+
+       if (match)
+               helps[1] = "<return>";
+
+       i = match + 1;
+       TAILQ_FOREACH(compnode, &c->nodes, next) {
+               if (TAILQ_EMPTY(&compnode->matches))
+                       continue;
+               // we should pass compnode instead
+               helps[i++] = get_node_help(TAILQ_FIRST(&compnode->matches)); //XXX
        }
+#endif
 
-       ec_completed_tk_free(c);
+       ec_completed_dump(stdout, c);
+       ec_completed_free(c);
 
-       rl_display_match_list(helps, count, 1000);
+       rl_display_match_list(helps, count + match, 1000); /* XXX 1000 */
 
        rl_forced_update_display();
 
        return 0;
 
-fail:
+//fail:
        free(helps);
        // free helps[n] XXX
        return 1;
@@ -169,62 +238,112 @@ fail:
 
 static int create_commands(void)
 {
-       struct ec_tk *cmdlist = NULL, *cmd = NULL;
+       struct ec_node *cmdlist = NULL, *cmd = NULL;
 
-       cmdlist = ec_tk_or_new(NULL);
+       cmdlist = ec_node("or", NULL);
        if (cmdlist == NULL)
                goto fail;
 
-       cmd = ec_tk_seq_new_list(NULL,
-               ec_tk_str_new(NULL, "hello"),
-               ec_tk_or_new_list(NULL,
-                       ec_tk_or_new_list("name",
-                               ec_tk_str_new(NULL, "john"),
-                               ec_tk_str_new(NULL, "johnny"),
-                               ec_tk_str_new(NULL, "mike"),
-                               EC_TK_ENDLIST
-                       ),
-                       ec_tk_int_new("int", 0, 10, 10),
-                       EC_TK_ENDLIST
+
+       cmd = EC_NODE_SEQ(NULL,
+               ec_node_str(NULL, "hello"),
+               EC_NODE_OR("name",
+                       ec_node_str("john", "john"),
+                       ec_node_str(NULL, "johnny"),
+                       ec_node_str(NULL, "mike")
                ),
-               EC_TK_ENDLIST
+               ec_node_option(NULL, ec_node_int("int", 0, 10, 10))
        );
-       ec_keyval_set(ec_tk_attrs(cmd), "help", "say hello to someone", NULL);
-       ec_keyval_set(ec_tk_attrs(ec_tk_find(cmd, "name")),
+       if (cmd == NULL)
+               goto fail;
+       ec_keyval_set(ec_node_attrs(cmd), "help",
+               "say hello to someone several times", NULL);
+       ec_keyval_set(ec_node_attrs(ec_node_find(cmd, "john")),
+               "help", "specific help for john", NULL);
+       ec_keyval_set(ec_node_attrs(ec_node_find(cmd, "name")),
                "help", "the name of the person", NULL);
-       ec_keyval_set(ec_tk_attrs(ec_tk_find(cmd, "int")),
+       ec_keyval_set(ec_node_attrs(ec_node_find(cmd, "int")),
                "help", "an integer", NULL);
-       if (ec_tk_or_add(cmdlist, cmd) < 0)
+       if (ec_node_or_add(cmdlist, cmd) < 0)
+               goto fail;
+
+
+       cmd = EC_NODE_CMD(NULL, "good morning name [count]",
+                       EC_NODE_CMD("name", "bob|bobby|michael"),
+                       ec_node_int("count", 0, 10, 10));
+       if (cmd == NULL)
+               goto fail;
+       ec_keyval_set(ec_node_attrs(cmd), "help",
+               "say good morning to someone several times", 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);
+       if (ec_node_or_add(cmdlist, cmd) < 0)
+               goto fail;
+
+
+       cmd = EC_NODE_CMD(NULL,
+                       "buy potatoes,carrots,pumpkins");
+       if (cmd == NULL)
+               goto fail;
+       ec_keyval_set(ec_node_attrs(cmd), "help",
+               "buy some vegetables", NULL);
+       if (ec_node_or_add(cmdlist, cmd) < 0)
+               goto fail;
+
+
+       cmd = EC_NODE_CMD(NULL, "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"))),
+                       1, 0));
+       if (cmd == NULL)
+               goto fail;
+       ec_keyval_set(ec_node_attrs(cmd), "help",
+               "eat vegetables (take some more potatoes)", NULL);
+       if (ec_node_or_add(cmdlist, cmd) < 0)
+               goto fail;
+
+
+       cmd = EC_NODE_SEQ(NULL,
+               ec_node_str(NULL, "bye")
+       );
+       ec_keyval_set(ec_node_attrs(cmd), "help", "say bye", NULL);
+       if (ec_node_or_add(cmdlist, cmd) < 0)
                goto fail;
 
-       cmd = ec_tk_seq_new_list(NULL,
-               ec_tk_str_new(NULL, "bye"),
-               EC_TK_ENDLIST
+
+       cmd = EC_NODE_SEQ(NULL,
+               ec_node_str(NULL, "load"),
+               ec_node("file", NULL)
        );
-       ec_keyval_set(ec_tk_attrs(cmd), "help", "say bye to someone", NULL);
-       if (ec_tk_or_add(cmdlist, cmd) < 0)
+       ec_keyval_set(ec_node_attrs(cmd), "help", "load a file", NULL);
+       if (ec_node_or_add(cmdlist, cmd) < 0)
                goto fail;
 
-       commands = ec_tk_shlex_new(NULL, cmdlist);
+
+       commands = ec_node_sh_lex(NULL, cmdlist);
        if (commands == NULL)
                goto fail;
 
        return 0;
 
  fail:
-       fprintf(stderr, "cannot initialize tokens\n");
-       ec_tk_free(cmd);
-       ec_tk_free(cmdlist);
+       fprintf(stderr, "cannot initialize nodes\n");
+       ec_node_free(cmdlist);
        return -1;
 }
 
 int main(void)
 {
-       struct ec_parsed_tk *p;
-//     const char *name;
+       struct ec_parsed *p;
        char *line;
 
-
        if (create_commands() < 0)
                return 1;
 
@@ -236,14 +355,14 @@ int main(void)
                if (line == NULL)
                        break;
 
-               p = ec_tk_parse(commands, line);
-               ec_parsed_tk_dump(stdout, p);
+               p = ec_node_parse(commands, line);
+               ec_parsed_dump(stdout, p);
                add_history(line);
-               ec_parsed_tk_free(p);
+               ec_parsed_free(p);
        }
 
 
-       ec_tk_free(commands);
+       ec_node_free(commands);
        return 0;
 
 }