WL#5945 : Improve libedit library

Updated libedit library.

cmd-line-utils/libedit/el.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: el.c,v 1.47 2009/01/18 12:17:24 lukem Exp $	*/
+/*	$NetBSD: el.c,v 1.68 2011/07/29 15:16:33 christos Exp $	*/
 
 /*-
  * Copyright (c) 1992, 1993
@@ -48,6 +48,9 @@ static char sccsid[] = "@(#)el.c	8.2 (Berkeley) 1/3/94";
 #include <string.h>
 #include <stdlib.h>
 #include <stdarg.h>
+#include <ctype.h>
+#include <locale.h>
+#include <langinfo.h>
 #include "el.h"
 
 /* el_init():
@@ -56,11 +59,10 @@ static char sccsid[] = "@(#)el.c	8.2 (Berkeley) 1/3/94";
 public EditLine *
 el_init(const char *prog, FILE *fin, FILE *fout, FILE *ferr)
 {
-
-	EditLine *el = (EditLine *) el_malloc(sizeof(EditLine));
+	EditLine *el = el_malloc(sizeof(*el));
 
 	if (el == NULL)
-		return (NULL);
+		return NULL;
 
 	memset(el, 0, sizeof(EditLine));
 
@@ -69,8 +71,11 @@ el_init(const char *prog, FILE *fin, FILE *fout, FILE *ferr)
 	el->el_errfile = ferr;
 
 	el->el_infd = fileno(fin);
+	el->el_outfd = fileno(fout);
+	el->el_errfd = fileno(ferr);
 
-	if ((el->el_prog = el_strdup(prog)) == NULL) {
+	el->el_prog = Strdup(ct_decode_string(prog, &el->el_scratch));
+	if (el->el_prog == NULL) {
 		el_free(el);
 		return NULL;
 	}
@@ -79,13 +84,18 @@ el_init(const char *prog, FILE *fin, FILE *fout, FILE *ferr)
          * Initialize all the modules. Order is important!!!
          */
 	el->el_flags = 0;
+#ifdef WIDECHAR
+	setlocale(LC_CTYPE, NULL);
+        if (MB_CUR_MAX > 1)
+		el->el_flags |= CHARSET_IS_MULTIBYTE;
+#endif
 
-	if (term_init(el) == -1) {
+	if (terminal_init(el) == -1) {
 		el_free(el->el_prog);
 		el_free(el);
 		return NULL;
 	}
-	(void) key_init(el);
+	(void) keymacro_init(el);
 	(void) map_init(el);
 	if (tty_init(el) == -1)
 		el->el_flags |= NO_TTY;
@@ -96,7 +106,7 @@ el_init(const char *prog, FILE *fin, FILE *fout, FILE *ferr)
 	(void) sig_init(el);
 	(void) read_init(el);
 
-	return (el);
+	return el;
 }
 
 
@@ -112,8 +122,8 @@ el_end(EditLine *el)
 
 	el_reset(el);
 
-	term_end(el);
-	key_end(el);
+	terminal_end(el);
+	keymacro_end(el);
 	map_end(el);
 	tty_end(el);
 	ch_end(el);
@@ -122,8 +132,14 @@ el_end(EditLine *el)
 	prompt_end(el);
 	sig_end(el);
 
-	el_free((ptr_t) el->el_prog);
-	el_free((ptr_t) el);
+	el_free(el->el_prog);
+#ifdef WIDECHAR
+	el_free(el->el_scratch.cbuff);
+	el_free(el->el_scratch.wbuff);
+	el_free(el->el_lgcyconv.cbuff);
+	el_free(el->el_lgcyconv.wbuff);
+#endif
+	el_free(el);
 }
 
 
@@ -143,27 +159,46 @@ el_reset(EditLine *el)
  *	set the editline parameters
  */
 public int
-el_set(EditLine *el, int op, ...)
+FUN(el,set)(EditLine *el, int op, ...)
 {
 	va_list ap;
 	int rv = 0;
 
 	if (el == NULL)
-		return (-1);
+		return -1;
 	va_start(ap, op);
 
 	switch (op) {
 	case EL_PROMPT:
-	case EL_RPROMPT:
-		rv = prompt_set(el, va_arg(ap, el_pfunc_t), op);
+	case EL_RPROMPT: {
+		el_pfunc_t p = va_arg(ap, el_pfunc_t);
+
+		rv = prompt_set(el, p, 0, op, 1);
 		break;
+	}
+
+	case EL_RESIZE: {
+		el_zfunc_t p = va_arg(ap, el_zfunc_t);
+		void *arg = va_arg(ap, void *);
+		rv = ch_resizefun(el, p, arg);
+		break;
+	}
+
+	case EL_PROMPT_ESC:
+	case EL_RPROMPT_ESC: {
+		el_pfunc_t p = va_arg(ap, el_pfunc_t);
+		int c = va_arg(ap, int);
+
+		rv = prompt_set(el, p, c, op, 1);
+		break;
+	}
 
 	case EL_TERMINAL:
-		rv = term_set(el, va_arg(ap, char *));
+		rv = terminal_set(el, va_arg(ap, char *));
 		break;
 
 	case EL_EDITOR:
-		rv = map_set_editor(el, va_arg(ap, char *));
+		rv = map_set_editor(el, va_arg(ap, Char *));
 		break;
 
 	case EL_SIGNAL:
@@ -176,40 +211,39 @@ el_set(EditLine *el, int op, ...)
 	case EL_BIND:
 	case EL_TELLTC:
 	case EL_SETTC:
-	case EL_GETTC:
 	case EL_ECHOTC:
 	case EL_SETTY:
 	{
-		const char *argv[20];
+		const Char *argv[20];
 		int i;
 
 		for (i = 1; i < 20; i++)
-			if ((argv[i] = va_arg(ap, char *)) == NULL)
+			if ((argv[i] = va_arg(ap, Char *)) == NULL)
 				break;
 
 		switch (op) {
 		case EL_BIND:
-			argv[0] = "bind";
+			argv[0] = STR("bind");
 			rv = map_bind(el, i, argv);
 			break;
 
 		case EL_TELLTC:
-			argv[0] = "telltc";
-			rv = term_telltc(el, i, argv);
+			argv[0] = STR("telltc");
+			rv = terminal_telltc(el, i, argv);
 			break;
 
 		case EL_SETTC:
-			argv[0] = "settc";
-			rv = term_settc(el, i, argv);
+			argv[0] = STR("settc");
+			rv = terminal_settc(el, i, argv);
 			break;
 
 		case EL_ECHOTC:
-			argv[0] = "echotc";
-			rv = term_echotc(el, i, argv);
+			argv[0] = STR("echotc");
+			rv = terminal_echotc(el, i, argv);
 			break;
 
 		case EL_SETTY:
-			argv[0] = "setty";
+			argv[0] = STR("setty");
 			rv = tty_stty(el, i, argv);
 			break;
 
@@ -223,8 +257,8 @@ el_set(EditLine *el, int op, ...)
 
 	case EL_ADDFN:
 	{
-		char *name = va_arg(ap, char *);
-		char *help = va_arg(ap, char *);
+		Char *name = va_arg(ap, Char *);
+		Char *help = va_arg(ap, Char *);
 		el_func_t func = va_arg(ap, el_func_t);
 
 		rv = map_addfunc(el, name, help, func);
@@ -234,9 +268,11 @@ el_set(EditLine *el, int op, ...)
 	case EL_HIST:
 	{
 		hist_fun_t func = va_arg(ap, hist_fun_t);
-		ptr_t ptr = va_arg(ap, char *);
+		void *ptr = va_arg(ap, void *);
 
 		rv = hist_set(el, func, ptr);
+		if (!(el->el_flags & CHARSET_IS_MULTIBYTE))
+			el->el_flags &= ~NARROW_HISTORY;
 		break;
 	}
 
@@ -252,6 +288,7 @@ el_set(EditLine *el, int op, ...)
 	{
 		el_rfunc_t rc = va_arg(ap, el_rfunc_t);
 		rv = el_read_setfn(el, rc);
+		el->el_flags &= ~NARROW_READ;
 		break;
 	}
 
@@ -296,9 +333,11 @@ el_set(EditLine *el, int op, ...)
 			break;
 		case 1:
 			el->el_outfile = fp;
+			el->el_outfd = fileno(fp);
 			break;
 		case 2:
 			el->el_errfile = fp;
+			el->el_errfd = fileno(fp);
 			break;
 		default:
 			rv = -1;
@@ -310,7 +349,7 @@ el_set(EditLine *el, int op, ...)
 	case EL_REFRESH:
 		re_clear_display(el);
 		re_refresh(el);
-		term__flush(el);
+		terminal__flush(el);
 		break;
 
 	default:
@@ -319,7 +358,7 @@ el_set(EditLine *el, int op, ...)
 	}
 
 	va_end(ap);
-	return (rv);
+	return rv;
 }
 
 
@@ -327,7 +366,7 @@ el_set(EditLine *el, int op, ...)
  *	retrieve the editline parameters
  */
 public int
-el_get(EditLine *el, int op, ...)
+FUN(el,get)(EditLine *el, int op, ...)
 {
 	va_list ap;
 	int rv;
@@ -339,12 +378,22 @@ el_get(EditLine *el, int op, ...)
 
 	switch (op) {
 	case EL_PROMPT:
-	case EL_RPROMPT:
-		rv = prompt_get(el, va_arg(ap, el_pfunc_t *), op);
+	case EL_RPROMPT: {
+		el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
+		rv = prompt_get(el, p, 0, op);
 		break;
+	}
+	case EL_PROMPT_ESC:
+	case EL_RPROMPT_ESC: {
+		el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
+		Char *c = va_arg(ap, Char *);
+
+		rv = prompt_get(el, p, c, op);
+		break;
+	}
 
 	case EL_EDITOR:
-		rv = map_get_editor(el, va_arg(ap, const char **));
+		rv = map_get_editor(el, va_arg(ap, const Char **));
 		break;
 
 	case EL_SIGNAL:
@@ -358,7 +407,7 @@ el_get(EditLine *el, int op, ...)
 		break;
 
 	case EL_TERMINAL:
-		term_get(el, va_arg(ap, const char **));
+		terminal_get(el, va_arg(ap, const char **));
 		rv = 0;
 		break;
 
@@ -375,7 +424,7 @@ el_get(EditLine *el, int op, ...)
 		switch (op) {
 		case EL_GETTC:
 			argv[0] = name;
-			rv = term_gettc(el, i, argv);
+			rv = terminal_gettc(el, i, argv);
 			break;
 
 		default:
@@ -386,26 +435,6 @@ el_get(EditLine *el, int op, ...)
 		break;
 	}
 
-#if 0 /* XXX */
-	case EL_ADDFN:
-	{
-		char *name = va_arg(ap, char *);
-		char *help = va_arg(ap, char *);
-		el_func_t func = va_arg(ap, el_func_t);
-
-		rv = map_addfunc(el, name, help, func);
-		break;
-	}
-
-	case EL_HIST:
-		{
-			hist_fun_t func = va_arg(ap, hist_fun_t);
-			ptr_t ptr = va_arg(ap, char *);
-			rv = hist_set(el, func, ptr);
-		}
-		break;
-#endif /* XXX */
-
 	case EL_GETCFN:
 		*va_arg(ap, el_rfunc_t *) = el_read_getfn(el);
 		rv = 0;
@@ -451,18 +480,18 @@ el_get(EditLine *el, int op, ...)
 	}
 	va_end(ap);
 
-	return (rv);
+	return rv;
 }
 
 
 /* el_line():
  *	Return editing info
  */
-public const LineInfo *
-el_line(EditLine *el)
+public const TYPE(LineInfo) *
+FUN(el,line)(EditLine *el)
 {
 
-	return (const LineInfo *) (void *) &el->el_line;
+	return (const TYPE(LineInfo) *)(void *)&el->el_line;
 }
 
 
@@ -475,6 +504,9 @@ el_source(EditLine *el, const char *fname)
 	FILE *fp;
 	size_t len;
 	char *ptr;
+	char *path = NULL;
+	const Char *dptr;
+	int error = 0;
 
 	fp = NULL;
 	if (fname == NULL) {
@@ -486,25 +518,21 @@ el_source(EditLine *el, const char *fname)
 
 #if (defined(HAVE_ISSETUGID) || defined(HAVE_IDENTITY_FUNCS))
 		static const char elpath[] = "/.editrc";
+		size_t plen = sizeof(elpath);
 /* XXXMYSQL: Portability fix (for which platforms?) */
-#ifdef MAXPATHLEN
-		char path[MAXPATHLEN];
-#else
-		char path[4096];
-#endif
 #ifdef HAVE_ISSETUGID
 		if (issetugid())
-			return (-1);
+			return -1;
 #elif defined(HAVE_IDENTITY_FUNCS)
                 if (getuid() != geteuid() || getgid() != getegid())
                   return (-1);
 #endif
 		if ((ptr = getenv("HOME")) == NULL)
-			return (-1);
-		if (strlcpy(path, ptr, sizeof(path)) >= sizeof(path))
-			return (-1);
-		if (strlcat(path, elpath, sizeof(path)) >= sizeof(path))
-			return (-1);
+			return -1;
+		plen += strlen(ptr);
+		if ((path = el_malloc(plen * sizeof(*path))) == NULL)
+			return -1;
+		(void)snprintf(path, plen, "%s%s", ptr, elpath);
 		fname = path;
 #else
 		/*
@@ -513,26 +541,37 @@ el_source(EditLine *el, const char *fname)
 		 * to keep from inadvertently opening up the user to a
 		 * security hole.
 		 */
-		return (-1);
+		return -1;
 #endif
 	}
 	if (fp == NULL)
 		fp = fopen(fname, "r");
-	if (fp == NULL)
-		return (-1);
-
-	while ((ptr = fgetln(fp, &len)) != NULL) {
-		if (len > 0 && ptr[len - 1] == '\n')
-			--len;
-		ptr[len] = '\0';
-		if (parse_line(el, ptr) == -1) {
-			(void) fclose(fp);
-			return (-1);
-		}
+	if (fp == NULL) {
+		el_free(path);
+		return -1;
 	}
 
+	while ((ptr = fgetln(fp, &len)) != NULL) {
+		if (*ptr == '\n')
+			continue;	/* Empty line. */
+		dptr = ct_decode_string(ptr, &el->el_scratch);
+		if (!dptr)
+			continue;
+		if (len > 0 && dptr[len - 1] == '\n')
+			--len;
+
+		/* loop until first non-space char or EOL */
+		while (*dptr != '\0' && Isspace(*dptr))
+			dptr++;
+		if (*dptr == '#')
+			continue;   /* ignore, this is a comment line */
+		if ((error = parse_line(el, dptr)) == -1)
+			break;
+	}
+
+	el_free(path);
 	(void) fclose(fp);
-	return (0);
+	return error;
 }
 
 
@@ -550,8 +589,8 @@ el_resize(EditLine *el)
 	(void) sigprocmask(SIG_BLOCK, &nset, &oset);
 
 	/* get the correct window size */
-	if (term_get_size(el, &lins, &cols))
-		term_change_size(el, lins, cols);
+	if (terminal_get_size(el, &lins, &cols))
+		terminal_change_size(el, lins, cols);
 
 	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
 }
@@ -564,7 +603,7 @@ public void
 el_beep(EditLine *el)
 {
 
-	term_beep(el);
+	terminal_beep(el);
 }
 
 
@@ -573,24 +612,25 @@ el_beep(EditLine *el)
  */
 protected int
 /*ARGSUSED*/
-el_editmode(EditLine *el, int argc, const char **argv)
+el_editmode(EditLine *el, int argc, const Char **argv)
 {
-	const char *how;
+	const Char *how;
 
 	if (argv == NULL || argc != 2 || argv[1] == NULL)
-		return (-1);
+		return -1;
 
 	how = argv[1];
-	if (strcmp(how, "on") == 0) {
+	if (Strcmp(how, STR("on")) == 0) {
 		el->el_flags &= ~EDIT_DISABLED;
 		tty_rawmode(el);
-	} else if (strcmp(how, "off") == 0) {
+	} else if (Strcmp(how, STR("off")) == 0) {
 		tty_cookedmode(el);
 		el->el_flags |= EDIT_DISABLED;
 	}
 	else {
-		(void) fprintf(el->el_errfile, "edit: Bad value `%s'.\n", how);
-		return (-1);
+		(void) fprintf(el->el_errfile, "edit: Bad value `" FSTR "'.\n",
+		    how);
+		return -1;
 	}
-	return (0);
+	return 0;
 }