/* depend: */
/* cflags: */
-/* linker: alloc.o argument.o color.o debug.o element.o format.o parser.o program.o stack.o storage.o tabular.o workspace.o -lm -lreadline */
+/* linker: alloc.o argument.o color.o debug.o element.o format.o parser.o program.o readline.o stack.o storage.o tabular.o workspace.o -lm -lreadline */
#include <malloc.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <unistd.h>
-#include <readline/readline.h>
-#include <readline/history.h>
-
#include "debug.h"
#include "element.h"
#include "format.h"
#include "parser.h"
+#include "readline.h"
/* constants */
#define BUFFER_SIZE 4096
-#define HISTORY_LEN 10
/* macros */
-#define CEIL(x, y) (((x) + (y) - 1) / (y))
-#define MIN(x, y) (((x) < (y)) ? (x) : (y))
-#define MAX(x, y) (((x) > (y)) ? (x) : (y))
-
/* gobal variables */
char *progname = NULL;
int mode = 1;
char *oprompt = "=> ";
int precision = 6;
-char **completion_list = NULL;
/* help function */
return ret;
}
-/* completion function */
-
-char *generator (const char *text, int state);
-
-char **completion (const char *text, __attribute__((unused)) int start, __attribute__((unused)) int end)
-{
- rl_attempted_completion_over = 1;
- return rl_completion_matches (text, generator);
-}
-
-char *generator (const char *text, int state)
-{
- static int index, len;
- char *name;
-
- if (!state) {
- index = 0;
- len = strlen(text);
- }
-
- while ((name = completion_list[index++])) {
- if (strncmp (name, text, len) == 0) {
- return strdup (name);
- }
- }
-
- return NULL;
-}
-
-/* edit line */
-char *edit_line = NULL;
-int edit_hook ()
-{
- static int state = 0;
- if (edit_line) {
- if (state == 0) {
- state = 1;
- } else {
- state = 0;
- free (edit_line);
- edit_line = NULL;
- }
- }
- return rl_insert_text (edit_line);
-}
-
-/* history management */
-
-void history ()
-{
- HIST_ENTRY **entries = history_list ();
- if (entries == NULL) {
- VERBOSE (WARNING, fprintf (stdout, "no history\n"));
- } else {
- int i = 0;
- while (entries[i] != NULL) {
- printf ("%d: %s\n", history_length - i, entries[i]->line);
- i++;
- }
- }
-}
-
/* main function */
int main (int argc, char *argv[])
/* set format */
set_format ();
- /* completion list*/
- completion_list = generate_completion_list ();
- rl_attempted_completion_function = completion;
-
- /* readline parameters */
- rl_startup_hook = edit_hook;
- rl_variable_bind ("blink-matching-paren", "On");
- //rl_set_screen_size (50, 40);
+ /* init readline */
+ if (mode) {
+ init_read_line ();
+ }
/* read from input stream */
char *line[BUFFER_SIZE] = {0};
if (mode) {
- if ((buffer = readline (iprompt)) == NULL) {
+ if (read_line (&buffer, iprompt)) {
break;
}
/* check empty line */
- if (strlen (buffer) == 0) {
- free (buffer);
+ if (buffer == NULL) {
continue;
- } else if (strcmp (buffer, ".") == 0) {
- free (buffer);
- break;
}
/* add line into history */
- add_history (buffer);
- VERBOSE (INFO, fprintf (stdout, "line (%d/%d): '%s'\n",
- where_history (), history_length, buffer));
- if (history_length > HISTORY_LEN) {
- HIST_ENTRY *last = remove_history (0);
- if (last) {
- free_history_entry (last);
- }
- }
+ manage_history (buffer);
+
} else {
printf ("%s", iprompt);
if (read (STDIN_FILENO, buffer, BUFFER_SIZE) == 0) {
break;
}
- VERBOSE (INFO, fprintf (stdout, "line: '%s'\n", buffer));
+ }
+
+ if (strcmp (buffer, ".") == 0) {
+ break;
}
/* pre-process buffer */
fflush (stdout);
}
- free_completion_list (completion_list);
+ clean_read_line (buffer);
free_format ();
--- /dev/null
+#include <malloc.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <readline/readline.h>
+#include <readline/history.h>
+
+#include "debug.h"
+#include "parser.h"
+
+#include "readline.h"
+
+/* constants */
+
+#define HISTORY_LEN 10
+
+/* macros */
+
+/* gobal variables */
+
+char **completion_list = NULL;
+
+/* completion function */
+
+char *generator (const char *text, int state)
+{
+ static int index, len;
+ char *name;
+
+ if (!state) {
+ index = 0;
+ len = strlen(text);
+ }
+
+ while ((name = completion_list[index++])) {
+ if (strncmp (name, text, len) == 0) {
+ return strdup (name);
+ }
+ }
+
+ return NULL;
+}
+
+char **completion (const char *text, __attribute__((unused)) int start, __attribute__((unused)) int end)
+{
+ rl_attempted_completion_over = 1;
+ return rl_completion_matches (text, generator);
+}
+
+/* edit line */
+char *edit_line = NULL;
+int edit_hook ()
+{
+ static int state = 0;
+ if (edit_line) {
+ if (state == 0) {
+ state = 1;
+ } else {
+ state = 0;
+ free (edit_line);
+ edit_line = NULL;
+ }
+ }
+ return rl_insert_text (edit_line);
+}
+
+/* history management */
+
+void history ()
+{
+ HIST_ENTRY **entries = history_list ();
+ if (entries == NULL) {
+ VERBOSE (WARNING, fprintf (stdout, "no history\n"));
+ } else {
+ int i = 0;
+ while (entries[i] != NULL) {
+ printf ("%d: %s\n", history_length - i, entries[i]->line);
+ i++;
+ }
+ }
+}
+
+/* init readline */
+
+void init_read_line ()
+{
+ /* completion list*/
+ completion_list = generate_completion_list ();
+ rl_attempted_completion_function = completion;
+
+ /* edit program */
+ rl_startup_hook = edit_hook;
+
+ /* readline parameters */
+ rl_variable_bind ("blink-matching-paren", "On");
+ //rl_set_screen_size (50, 40);
+}
+
+/* read line */
+
+int read_line (char **buffer, char *prompt)
+{
+ if ((*buffer = readline (prompt)) == NULL) {
+ return 1;
+ }
+
+ /* check empty line */
+ if (strlen (*buffer) == 0) {
+ free (*buffer);
+ *buffer = NULL;
+ }
+
+ return 0;
+}
+
+/* manage history */
+
+void manage_history (char *buffer)
+{
+ /* add line into history */
+ add_history (buffer);
+ VERBOSE (INFO, fprintf (stdout, "line (%d/%d): '%s'\n",
+ where_history (), history_length, buffer));
+ if (history_length > HISTORY_LEN) {
+ HIST_ENTRY *last = remove_history (0);
+ if (last) {
+ free_history_entry (last);
+ }
+ }
+}
+
+/* clean readline */
+
+void clean_read_line (char *buffer)
+{
+ free_completion_list (completion_list);
+ if (buffer) {
+ free (buffer);
+ }
+}