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WL#5945 : Improve libedit library

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Updated libedit library.
This commit is contained in:
Nirbhay Choubey
2011-10-14 01:03:25 +05:30
parent 41b97529d0
commit 05a38e7bf3
52 changed files with 5379 additions and 3000 deletions
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111
cmd-line-utils/libedit/tokenizer.c
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@ -1,4 +1,4 @@
/* $NetBSD: tokenizer.c,v 1.14 2003/12/05 13:37:48 lukem Exp $ */
/* $NetBSD: tokenizer.c,v 1.19 2011/07/28 20:50:55 christos Exp $ */
/*-
* Copyright (c) 1992, 1993
@ -40,51 +40,53 @@ static char sccsid[] = "@(#)tokenizer.c 8.1 (Berkeley) 6/4/93";
#endif
#endif /* not lint && not SCCSID */
/* We build this file twice, once as NARROW, once as WIDE. */
/*
* tokenize.c: Bourne shell like tokenizer
*/
#include <string.h>
#include <stdlib.h>
#include "histedit.h"
#include "chartype.h"
typedef enum {
Q_none, Q_single, Q_double, Q_one, Q_doubleone
} quote_t;
#define IFS "\t \n"
#define TOK_KEEP 1
#define TOK_EAT 2
#define WINCR 20
#define AINCR 10
#define tok_strdup(a) strdup(a)
#define IFS STR("\t \n")
#define tok_malloc(a) malloc(a)
#define tok_free(a) free(a)
#define tok_realloc(a, b) realloc(a, b)
#define tok_strdup(a) Strdup(a)
struct tokenizer {
char *ifs; /* In field separator */
struct TYPE(tokenizer) {
Char *ifs; /* In field separator */
int argc, amax; /* Current and maximum number of args */
char **argv; /* Argument list */
char *wptr, *wmax; /* Space and limit on the word buffer */
char *wstart; /* Beginning of next word */
char *wspace; /* Space of word buffer */
Char **argv; /* Argument list */
Char *wptr, *wmax; /* Space and limit on the word buffer */
Char *wstart; /* Beginning of next word */
Char *wspace; /* Space of word buffer */
quote_t quote; /* Quoting state */
int flags; /* flags; */
};
private void tok_finish(Tokenizer *);
private void FUN(tok,finish)(TYPE(Tokenizer) *);
/* tok_finish():
/* FUN(tok,finish)():
* Finish a word in the tokenizer.
*/
private void
tok_finish(Tokenizer *tok)
FUN(tok,finish)(TYPE(Tokenizer) *tok)
{
*tok->wptr = '\0';
@ -97,35 +99,35 @@ tok_finish(Tokenizer *tok)
}
/* tok_init():
/* FUN(tok,init)():
* Initialize the tokenizer
*/
public Tokenizer *
tok_init(const char *ifs)
public TYPE(Tokenizer) *
FUN(tok,init)(const Char *ifs)
{
Tokenizer *tok = (Tokenizer *) tok_malloc(sizeof(Tokenizer));
TYPE(Tokenizer) *tok = tok_malloc(sizeof(*tok));
if (tok == NULL)
return NULL;
tok->ifs = tok_strdup(ifs ? ifs : IFS);
if (tok->ifs == NULL) {
tok_free((ptr_t)tok);
tok_free(tok);
return NULL;
}
tok->argc = 0;
tok->amax = AINCR;
tok->argv = (char **) tok_malloc(sizeof(char *) * tok->amax);
tok->argv = tok_malloc(sizeof(*tok->argv) * tok->amax);
if (tok->argv == NULL) {
tok_free((ptr_t)tok->ifs);
tok_free((ptr_t)tok);
tok_free(tok->ifs);
tok_free(tok);
return NULL;
}
tok->argv[0] = NULL;
tok->wspace = (char *) tok_malloc(WINCR);
tok->wspace = tok_malloc(WINCR * sizeof(*tok->wspace));
if (tok->wspace == NULL) {
tok_free((ptr_t)tok->argv);
tok_free((ptr_t)tok->ifs);
tok_free((ptr_t)tok);
tok_free(tok->argv);
tok_free(tok->ifs);
tok_free(tok);
return NULL;
}
tok->wmax = tok->wspace + WINCR;
@ -138,11 +140,11 @@ tok_init(const char *ifs)
}
/* tok_reset():
/* FUN(tok,reset)():
* Reset the tokenizer
*/
public void
tok_reset(Tokenizer *tok)
FUN(tok,reset)(TYPE(Tokenizer) *tok)
{
tok->argc = 0;
@ -153,25 +155,25 @@ tok_reset(Tokenizer *tok)
}
/* tok_end():
/* FUN(tok,end)():
* Clean up
*/
public void
tok_end(Tokenizer *tok)
FUN(tok,end)(TYPE(Tokenizer) *tok)
{
tok_free((ptr_t) tok->ifs);
tok_free((ptr_t) tok->wspace);
tok_free((ptr_t) tok->argv);
tok_free((ptr_t) tok);
tok_free(tok->ifs);
tok_free(tok->wspace);
tok_free(tok->argv);
tok_free(tok);
}
/* tok_line():
/* FUN(tok,line)():
* Bourne shell (sh(1)) like tokenizing
* Arguments:
* tok current tokenizer state (setup with tok_init())
* tok current tokenizer state (setup with FUN(tok,init)())
* line line to parse
* Returns:
* -1 Internal error
@ -186,20 +188,20 @@ tok_end(Tokenizer *tok)
* cursorv if !NULL, offset in argv[cursorc] of cursor
*/
public int
tok_line(Tokenizer *tok, const LineInfo *line,
int *argc, const char ***argv, int *cursorc, int *cursoro)
FUN(tok,line)(TYPE(Tokenizer) *tok, const TYPE(LineInfo) *line,
int *argc, const Char ***argv, int *cursorc, int *cursoro)
{
const char *ptr;
const Char *ptr;
int cc, co;
cc = co = -1;
ptr = line->buffer;
for (ptr = line->buffer; ;ptr++) {
if (ptr >= line->lastchar)
ptr = "";
ptr = STR("");
if (ptr == line->cursor) {
cc = tok->argc;
co = tok->wptr - tok->wstart;
co = (int)(tok->wptr - tok->wstart);
}
switch (*ptr) {
case '\'':
@ -357,8 +359,8 @@ tok_line(Tokenizer *tok, const LineInfo *line,
tok->flags &= ~TOK_EAT;
switch (tok->quote) {
case Q_none:
if (strchr(tok->ifs, *ptr) != NULL)
tok_finish(tok);
if (Strchr(tok->ifs, *ptr) != NULL)
FUN(tok,finish)(tok);
else
*tok->wptr++ = *ptr;
break;
@ -389,7 +391,8 @@ tok_line(Tokenizer *tok, const LineInfo *line,
if (tok->wptr >= tok->wmax - 4) {
size_t size = tok->wmax - tok->wspace + WINCR;
char *s = (char *) tok_realloc(tok->wspace, size);
Char *s = tok_realloc(tok->wspace,
size * sizeof(*s));
if (s == NULL)
return (-1);
@ -406,10 +409,9 @@ tok_line(Tokenizer *tok, const LineInfo *line,
tok->wmax = s + size;
}
if (tok->argc >= tok->amax - 4) {
char **p;
Char **p;
tok->amax += AINCR;
p = (char **) tok_realloc(tok->argv,
tok->amax * sizeof(char *));
p = tok_realloc(tok->argv, tok->amax * sizeof(*p));
if (p == NULL)
return (-1);
tok->argv = p;
@ -418,29 +420,30 @@ tok_line(Tokenizer *tok, const LineInfo *line,
tok_line_outok:
if (cc == -1 && co == -1) {
cc = tok->argc;
co = tok->wptr - tok->wstart;
co = (int)(tok->wptr - tok->wstart);
}
if (cursorc != NULL)
*cursorc = cc;
if (cursoro != NULL)
*cursoro = co;
tok_finish(tok);
*argv = (const char **)tok->argv;
FUN(tok,finish)(tok);
*argv = (const Char **)tok->argv;
*argc = tok->argc;
return (0);
}
/* tok_str():
/* FUN(tok,str)():
* Simpler version of tok_line, taking a NUL terminated line
* and splitting into words, ignoring cursor state.
*/
public int
tok_str(Tokenizer *tok, const char *line, int *argc, const char ***argv)
FUN(tok,str)(TYPE(Tokenizer) *tok, const Char *line, int *argc,
const Char ***argv)
{
LineInfo li;
TYPE(LineInfo) li;
memset(&li, 0, sizeof(li));
li.buffer = line;
li.cursor = li.lastchar = strchr(line, '\0');
return (tok_line(tok, &li, argc, argv, NULL, NULL));
li.cursor = li.lastchar = Strchr(line, '\0');
return (FUN(tok,line)(tok, &li, argc, argv, NULL, NULL));
}