761 lines
17 KiB
C
761 lines
17 KiB
C
/* $Header: /p/tcsh/cvsroot/tcsh/ed.xmap.c,v 3.36 2006/11/29 22:30:09 christos Exp $ */
|
|
/*
|
|
* ed.xmap.c: This module contains the procedures for maintaining
|
|
* the extended-key map.
|
|
*
|
|
* An extended-key (Xkey) is a sequence of keystrokes
|
|
* introduced with an sequence introducer and consisting
|
|
* of an arbitrary number of characters. This module maintains
|
|
* a map (the Xmap) to convert these extended-key sequences
|
|
* into input strings (XK_STR), editor functions (XK_CMD), or
|
|
* unix commands (XK_EXE). It contains the
|
|
* following externally visible functions.
|
|
*
|
|
* int GetXkey(ch,val);
|
|
* CStr *ch;
|
|
* XmapVal *val;
|
|
*
|
|
* Looks up *ch in map and then reads characters until a
|
|
* complete match is found or a mismatch occurs. Returns the
|
|
* type of the match found (XK_STR, XK_CMD, or XK_EXE).
|
|
* Returns NULL in val.str and XK_STR for no match.
|
|
* The last character read is returned in *ch.
|
|
*
|
|
* void AddXkey(Xkey, val, ntype);
|
|
* CStr *Xkey;
|
|
* XmapVal *val;
|
|
* int ntype;
|
|
*
|
|
* Adds Xkey to the Xmap and associates the value in val with it.
|
|
* If Xkey is already is in Xmap, the new code is applied to the
|
|
* existing Xkey. Ntype specifies if code is a command, an
|
|
* out string or a unix command.
|
|
*
|
|
* int DeleteXkey(Xkey);
|
|
* CStr *Xkey;
|
|
*
|
|
* Delete the Xkey and all longer Xkeys staring with Xkey, if
|
|
* they exists.
|
|
*
|
|
* Warning:
|
|
* If Xkey is a substring of some other Xkeys, then the longer
|
|
* Xkeys are lost!! That is, if the Xkeys "abcd" and "abcef"
|
|
* are in Xmap, adding the key "abc" will cause the first two
|
|
* definitions to be lost.
|
|
*
|
|
* void ResetXmap();
|
|
*
|
|
* Removes all entries from Xmap and resets the defaults.
|
|
*
|
|
* void PrintXkey(Xkey);
|
|
* CStr *Xkey;
|
|
*
|
|
* Prints all extended keys prefixed by Xkey and their associated
|
|
* commands.
|
|
*
|
|
* Restrictions:
|
|
* -------------
|
|
* 1) It is not possible to have one Xkey that is a
|
|
* substring of another.
|
|
*/
|
|
/*-
|
|
* Copyright (c) 1980, 1991 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
* 3. Neither the name of the University 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 OR 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.
|
|
*/
|
|
#include "sh.h"
|
|
|
|
RCSID("$tcsh: ed.xmap.c,v 3.36 2006/11/29 22:30:09 christos Exp $")
|
|
|
|
#include "ed.h"
|
|
#include "ed.defns.h"
|
|
|
|
#ifndef NULL
|
|
#define NULL 0
|
|
#endif
|
|
|
|
/* Internal Data types and declarations */
|
|
|
|
/* The Nodes of the Xmap. The Xmap is a linked list of these node
|
|
* elements
|
|
*/
|
|
typedef struct Xmapnode {
|
|
Char ch; /* single character of Xkey */
|
|
int type;
|
|
XmapVal val; /* command code or pointer to string, if this
|
|
* is a leaf */
|
|
struct Xmapnode *next; /* ptr to next char of this Xkey */
|
|
struct Xmapnode *sibling; /* ptr to another Xkey with same prefix */
|
|
} XmapNode;
|
|
|
|
static XmapNode *Xmap = NULL; /* the current Xmap */
|
|
|
|
|
|
/* Some declarations of procedures */
|
|
static int TraverseMap (XmapNode *, CStr *, XmapVal *);
|
|
static int TryNode (XmapNode *, CStr *, XmapVal *, int);
|
|
static XmapNode *GetFreeNode (CStr *);
|
|
static void PutFreeNode (XmapNode *);
|
|
static int TryDeleteNode (XmapNode **, CStr *);
|
|
static int Lookup (struct Strbuf *, const CStr *,
|
|
const XmapNode *);
|
|
static void Enumerate (struct Strbuf *, const XmapNode *);
|
|
static void unparsech (struct Strbuf *, Char);
|
|
|
|
|
|
XmapVal *
|
|
XmapCmd(int cmd)
|
|
{
|
|
static XmapVal xm;
|
|
xm.cmd = (KEYCMD) cmd;
|
|
return &xm;
|
|
}
|
|
|
|
XmapVal *
|
|
XmapStr(CStr *str)
|
|
{
|
|
static XmapVal xm;
|
|
xm.str.len = str->len;
|
|
xm.str.buf = str->buf;
|
|
return &xm;
|
|
}
|
|
|
|
/* ResetXmap():
|
|
* Takes all nodes on Xmap and puts them on free list. Then
|
|
* initializes Xmap with arrow keys
|
|
*/
|
|
void
|
|
ResetXmap(void)
|
|
{
|
|
PutFreeNode(Xmap);
|
|
Xmap = NULL;
|
|
|
|
DefaultArrowKeys();
|
|
return;
|
|
}
|
|
|
|
|
|
/* GetXkey():
|
|
* Calls the recursive function with entry point Xmap
|
|
*/
|
|
int
|
|
GetXkey(CStr *ch, XmapVal *val)
|
|
{
|
|
return (TraverseMap(Xmap, ch, val));
|
|
}
|
|
|
|
/* TraverseMap():
|
|
* recursively traverses node in tree until match or mismatch is
|
|
* found. May read in more characters.
|
|
*/
|
|
static int
|
|
TraverseMap(XmapNode *ptr, CStr *ch, XmapVal *val)
|
|
{
|
|
Char tch;
|
|
|
|
if (ptr->ch == *(ch->buf)) {
|
|
/* match found */
|
|
if (ptr->next) {
|
|
/* Xkey not complete so get next char */
|
|
if (GetNextChar(&tch) != 1) { /* if EOF or error */
|
|
val->cmd = F_SEND_EOF;
|
|
return XK_CMD;/* PWP: Pretend we just read an end-of-file */
|
|
}
|
|
*(ch->buf) = tch;
|
|
return (TraverseMap(ptr->next, ch, val));
|
|
}
|
|
else {
|
|
*val = ptr->val;
|
|
if (ptr->type != XK_CMD)
|
|
*(ch->buf) = '\0';
|
|
return ptr->type;
|
|
}
|
|
}
|
|
else {
|
|
/* no match found here */
|
|
if (ptr->sibling) {
|
|
/* try next sibling */
|
|
return (TraverseMap(ptr->sibling, ch, val));
|
|
}
|
|
else {
|
|
/* no next sibling -- mismatch */
|
|
val->str.buf = NULL;
|
|
val->str.len = 0;
|
|
return XK_STR;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
AddXkey(const CStr *Xkey, XmapVal *val, int ntype)
|
|
{
|
|
CStr cs;
|
|
cs.buf = Xkey->buf;
|
|
cs.len = Xkey->len;
|
|
if (Xkey->len == 0) {
|
|
xprintf(CGETS(9, 1, "AddXkey: Null extended-key not allowed.\n"));
|
|
return;
|
|
}
|
|
|
|
if (ntype == XK_CMD && val->cmd == F_XKEY) {
|
|
xprintf(CGETS(9, 2, "AddXkey: sequence-lead-in command not allowed\n"));
|
|
return;
|
|
}
|
|
|
|
if (Xmap == NULL)
|
|
/* tree is initially empty. Set up new node to match Xkey[0] */
|
|
Xmap = GetFreeNode(&cs); /* it is properly initialized */
|
|
|
|
/* Now recurse through Xmap */
|
|
(void) TryNode(Xmap, &cs, val, ntype);
|
|
return;
|
|
}
|
|
|
|
static int
|
|
TryNode(XmapNode *ptr, CStr *str, XmapVal *val, int ntype)
|
|
{
|
|
/*
|
|
* Find a node that matches *string or allocate a new one
|
|
*/
|
|
if (ptr->ch != *(str->buf)) {
|
|
XmapNode *xm;
|
|
|
|
for (xm = ptr; xm->sibling != NULL; xm = xm->sibling)
|
|
if (xm->sibling->ch == *(str->buf))
|
|
break;
|
|
if (xm->sibling == NULL)
|
|
xm->sibling = GetFreeNode(str); /* setup new node */
|
|
ptr = xm->sibling;
|
|
}
|
|
|
|
str->buf++;
|
|
str->len--;
|
|
if (str->len == 0) {
|
|
size_t len;
|
|
|
|
/* we're there */
|
|
if (ptr->next != NULL) {
|
|
PutFreeNode(ptr->next); /* lose longer Xkeys with this prefix */
|
|
ptr->next = NULL;
|
|
}
|
|
|
|
switch (ptr->type) {
|
|
case XK_STR:
|
|
case XK_EXE:
|
|
xfree(ptr->val.str.buf);
|
|
ptr->val.str.len = 0;
|
|
break;
|
|
case XK_NOD:
|
|
case XK_CMD:
|
|
break;
|
|
default:
|
|
abort();
|
|
break;
|
|
}
|
|
|
|
switch (ptr->type = ntype) {
|
|
case XK_CMD:
|
|
ptr->val = *val;
|
|
break;
|
|
case XK_STR:
|
|
case XK_EXE:
|
|
ptr->val.str.len = val->str.len;
|
|
len = (val->str.len + 1) * sizeof(*ptr->val.str.buf);
|
|
ptr->val.str.buf = xmalloc(len);
|
|
(void) memcpy(ptr->val.str.buf, val->str.buf, len);
|
|
break;
|
|
default:
|
|
abort();
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
/* still more chars to go */
|
|
if (ptr->next == NULL)
|
|
ptr->next = GetFreeNode(str); /* setup new node */
|
|
(void) TryNode(ptr->next, str, val, ntype);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
ClearXkey(KEYCMD *map, const CStr *in)
|
|
{
|
|
unsigned char c = (unsigned char) *(in->buf);
|
|
if ((map[c] == F_XKEY) &&
|
|
((map == CcKeyMap && CcAltMap[c] != F_XKEY) ||
|
|
(map == CcAltMap && CcKeyMap[c] != F_XKEY)))
|
|
(void) DeleteXkey(in);
|
|
}
|
|
|
|
int
|
|
DeleteXkey(const CStr *Xkey)
|
|
{
|
|
CStr s;
|
|
|
|
s = *Xkey;
|
|
if (s.len == 0) {
|
|
xprintf(CGETS(9, 3, "DeleteXkey: Null extended-key not allowed.\n"));
|
|
return (-1);
|
|
}
|
|
|
|
if (Xmap == NULL)
|
|
return (0);
|
|
|
|
(void) TryDeleteNode(&Xmap, &s);
|
|
return (0);
|
|
}
|
|
|
|
/* Destroys str */
|
|
static int
|
|
TryDeleteNode(XmapNode **inptr, CStr *str)
|
|
{
|
|
XmapNode *ptr;
|
|
|
|
ptr = *inptr;
|
|
/*
|
|
* Find a node that matches *string or allocate a new one
|
|
*/
|
|
if (ptr->ch != *(str->buf)) {
|
|
XmapNode *xm;
|
|
|
|
for (xm = ptr; xm->sibling != NULL; xm = xm->sibling)
|
|
if (xm->sibling->ch == *(str->buf))
|
|
break;
|
|
if (xm->sibling == NULL)
|
|
return (0);
|
|
inptr = &xm->sibling;
|
|
ptr = xm->sibling;
|
|
}
|
|
|
|
str->buf++;
|
|
str->len--;
|
|
|
|
if (str->len == 0) {
|
|
/* we're there */
|
|
*inptr = ptr->sibling;
|
|
ptr->sibling = NULL;
|
|
PutFreeNode(ptr);
|
|
return (1);
|
|
}
|
|
else if (ptr->next != NULL && TryDeleteNode(&ptr->next, str) == 1) {
|
|
if (ptr->next != NULL)
|
|
return (0);
|
|
*inptr = ptr->sibling;
|
|
ptr->sibling = NULL;
|
|
PutFreeNode(ptr);
|
|
return (1);
|
|
}
|
|
else {
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
/* PutFreeNode():
|
|
* Puts a tree of nodes onto free list using free(3).
|
|
*/
|
|
static void
|
|
PutFreeNode(XmapNode *ptr)
|
|
{
|
|
if (ptr == NULL)
|
|
return;
|
|
|
|
if (ptr->next != NULL) {
|
|
PutFreeNode(ptr->next);
|
|
ptr->next = NULL;
|
|
}
|
|
|
|
PutFreeNode(ptr->sibling);
|
|
|
|
switch (ptr->type) {
|
|
case XK_CMD:
|
|
case XK_NOD:
|
|
break;
|
|
case XK_EXE:
|
|
case XK_STR:
|
|
xfree(ptr->val.str.buf);
|
|
break;
|
|
default:
|
|
abort();
|
|
break;
|
|
}
|
|
xfree(ptr);
|
|
}
|
|
|
|
|
|
/* GetFreeNode():
|
|
* Returns pointer to an XmapNode for ch.
|
|
*/
|
|
static XmapNode *
|
|
GetFreeNode(CStr *ch)
|
|
{
|
|
XmapNode *ptr;
|
|
|
|
ptr = xmalloc(sizeof(XmapNode));
|
|
ptr->ch = ch->buf[0];
|
|
ptr->type = XK_NOD;
|
|
ptr->val.str.buf = NULL;
|
|
ptr->val.str.len = 0;
|
|
ptr->next = NULL;
|
|
ptr->sibling = NULL;
|
|
return (ptr);
|
|
}
|
|
|
|
|
|
/* PrintXKey():
|
|
* Print the binding associated with Xkey key.
|
|
* Print entire Xmap if null
|
|
*/
|
|
void
|
|
PrintXkey(const CStr *key)
|
|
{
|
|
struct Strbuf buf = Strbuf_INIT;
|
|
CStr cs;
|
|
|
|
if (key) {
|
|
cs.buf = key->buf;
|
|
cs.len = key->len;
|
|
}
|
|
else {
|
|
cs.buf = STRNULL;
|
|
cs.len = 0;
|
|
}
|
|
/* do nothing if Xmap is empty and null key specified */
|
|
if (Xmap == NULL && cs.len == 0)
|
|
return;
|
|
|
|
Strbuf_append1(&buf, '"');
|
|
cleanup_push(&buf, Strbuf_cleanup);
|
|
if (Lookup(&buf, &cs, Xmap) <= -1)
|
|
/* key is not bound */
|
|
xprintf(CGETS(9, 4, "Unbound extended key \"%S\"\n"), cs.buf);
|
|
cleanup_until(&buf);
|
|
}
|
|
|
|
/* Lookup():
|
|
* look for the string starting at node ptr.
|
|
* Print if last node
|
|
*/
|
|
static int
|
|
Lookup(struct Strbuf *buf, const CStr *str, const XmapNode *ptr)
|
|
{
|
|
if (ptr == NULL)
|
|
return (-1); /* cannot have null ptr */
|
|
|
|
if (str->len == 0) {
|
|
/* no more chars in string. Enumerate from here. */
|
|
Enumerate(buf, ptr);
|
|
return (0);
|
|
}
|
|
else {
|
|
/* If match put this char into buf. Recurse */
|
|
if (ptr->ch == *(str->buf)) {
|
|
/* match found */
|
|
unparsech(buf, ptr->ch);
|
|
if (ptr->next != NULL) {
|
|
/* not yet at leaf */
|
|
CStr tstr;
|
|
tstr.buf = str->buf + 1;
|
|
tstr.len = str->len - 1;
|
|
return (Lookup(buf, &tstr, ptr->next));
|
|
}
|
|
else {
|
|
/* next node is null so key should be complete */
|
|
if (str->len == 1) {
|
|
Strbuf_append1(buf, '"');
|
|
Strbuf_terminate(buf);
|
|
printOne(buf->s, &ptr->val, ptr->type);
|
|
return (0);
|
|
}
|
|
else
|
|
return (-1);/* mismatch -- string still has chars */
|
|
}
|
|
}
|
|
else {
|
|
/* no match found try sibling */
|
|
if (ptr->sibling)
|
|
return (Lookup(buf, str, ptr->sibling));
|
|
else
|
|
return (-1);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
Enumerate(struct Strbuf *buf, const XmapNode *ptr)
|
|
{
|
|
size_t old_len;
|
|
|
|
if (ptr == NULL) {
|
|
#ifdef DEBUG_EDIT
|
|
xprintf(CGETS(9, 6, "Enumerate: BUG!! Null ptr passed\n!"));
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
old_len = buf->len;
|
|
unparsech(buf, ptr->ch); /* put this char at end of string */
|
|
if (ptr->next == NULL) {
|
|
/* print this Xkey and function */
|
|
Strbuf_append1(buf, '"');
|
|
Strbuf_terminate(buf);
|
|
printOne(buf->s, &ptr->val, ptr->type);
|
|
}
|
|
else
|
|
Enumerate(buf, ptr->next);
|
|
|
|
/* go to sibling if there is one */
|
|
if (ptr->sibling) {
|
|
buf->len = old_len;
|
|
Enumerate(buf, ptr->sibling);
|
|
}
|
|
}
|
|
|
|
|
|
/* PrintOne():
|
|
* Print the specified key and its associated
|
|
* function specified by val
|
|
*/
|
|
void
|
|
printOne(const Char *key, const XmapVal *val, int ntype)
|
|
{
|
|
struct KeyFuncs *fp;
|
|
static const char *fmt = "%s\n";
|
|
|
|
xprintf("%-15S-> ", key);
|
|
if (val != NULL)
|
|
switch (ntype) {
|
|
case XK_STR:
|
|
case XK_EXE: {
|
|
unsigned char *p;
|
|
|
|
p = unparsestring(&val->str, ntype == XK_STR ? STRQQ : STRBB);
|
|
cleanup_push(p, xfree);
|
|
xprintf(fmt, p);
|
|
cleanup_until(p);
|
|
break;
|
|
}
|
|
case XK_CMD:
|
|
for (fp = FuncNames; fp->name; fp++)
|
|
if (val->cmd == fp->func)
|
|
xprintf(fmt, fp->name);
|
|
break;
|
|
default:
|
|
abort();
|
|
break;
|
|
}
|
|
else
|
|
xprintf(fmt, CGETS(9, 7, "no input"));
|
|
}
|
|
|
|
static void
|
|
unparsech(struct Strbuf *buf, Char ch)
|
|
{
|
|
if (ch == 0) {
|
|
Strbuf_append1(buf, '^');
|
|
Strbuf_append1(buf, '@');
|
|
}
|
|
else if (Iscntrl(ch)) {
|
|
Strbuf_append1(buf, '^');
|
|
if (ch == CTL_ESC('\177'))
|
|
Strbuf_append1(buf, '?');
|
|
else
|
|
#ifdef IS_ASCII
|
|
Strbuf_append1(buf, ch | 0100);
|
|
#else
|
|
Strbuf_append1(buf, _toebcdic[_toascii[ch]|0100]);
|
|
#endif
|
|
}
|
|
else if (ch == '^') {
|
|
Strbuf_append1(buf, '\\');
|
|
Strbuf_append1(buf, '^');
|
|
} else if (ch == '\\') {
|
|
Strbuf_append1(buf, '\\');
|
|
Strbuf_append1(buf, '\\');
|
|
} else if (ch == ' ' || (Isprint(ch) && !Isspace(ch))) {
|
|
Strbuf_append1(buf, ch);
|
|
}
|
|
else {
|
|
Strbuf_append1(buf, '\\');
|
|
Strbuf_append1(buf, ((ch >> 6) & 7) + '0');
|
|
Strbuf_append1(buf, ((ch >> 3) & 7) + '0');
|
|
Strbuf_append1(buf, (ch & 7) + '0');
|
|
}
|
|
}
|
|
|
|
eChar
|
|
parseescape(const Char **ptr)
|
|
{
|
|
const Char *p;
|
|
Char c;
|
|
|
|
p = *ptr;
|
|
|
|
if ((p[1] & CHAR) == 0) {
|
|
xprintf(CGETS(9, 8, "Something must follow: %c\n"), (char)*p);
|
|
return CHAR_ERR;
|
|
}
|
|
if ((*p & CHAR) == '\\') {
|
|
p++;
|
|
switch (*p & CHAR) {
|
|
case 'a':
|
|
c = CTL_ESC('\007'); /* Bell */
|
|
break;
|
|
case 'b':
|
|
c = CTL_ESC('\010'); /* Backspace */
|
|
break;
|
|
case 'e':
|
|
c = CTL_ESC('\033'); /* Escape */
|
|
break;
|
|
case 'f':
|
|
c = CTL_ESC('\014'); /* Form Feed */
|
|
break;
|
|
case 'n':
|
|
c = CTL_ESC('\012'); /* New Line */
|
|
break;
|
|
case 'r':
|
|
c = CTL_ESC('\015'); /* Carriage Return */
|
|
break;
|
|
case 't':
|
|
c = CTL_ESC('\011'); /* Horizontal Tab */
|
|
break;
|
|
case 'v':
|
|
c = CTL_ESC('\013'); /* Vertical Tab */
|
|
break;
|
|
case '\\':
|
|
c = '\\';
|
|
break;
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
{
|
|
int cnt, val;
|
|
Char ch;
|
|
|
|
for (cnt = 0, val = 0; cnt < 3; cnt++) {
|
|
ch = *p++ & CHAR;
|
|
if (ch < '0' || ch > '7') {
|
|
p--;
|
|
break;
|
|
}
|
|
val = (val << 3) | (ch - '0');
|
|
}
|
|
if ((val & ~0xff) != 0) {
|
|
xprintf(CGETS(9, 9,
|
|
"Octal constant does not fit in a char.\n"));
|
|
return 0;
|
|
}
|
|
#ifndef IS_ASCII
|
|
if (CTL_ESC(val) != val && adrof(STRwarnebcdic))
|
|
xprintf(/*CGETS(9, 9, no NLS-String yet!*/
|
|
"Warning: Octal constant \\%3.3o is interpreted as EBCDIC value.\n", val/*)*/);
|
|
#endif
|
|
c = (Char) val;
|
|
--p;
|
|
}
|
|
break;
|
|
default:
|
|
c = *p;
|
|
break;
|
|
}
|
|
}
|
|
else if ((*p & CHAR) == '^' && (Isalpha(p[1] & CHAR) ||
|
|
strchr("@^_?\\|[{]}", p[1] & CHAR))) {
|
|
p++;
|
|
#ifdef IS_ASCII
|
|
c = ((*p & CHAR) == '?') ? CTL_ESC('\177') : ((*p & CHAR) & 0237);
|
|
#else
|
|
c = ((*p & CHAR) == '?') ? CTL_ESC('\177') : _toebcdic[_toascii[*p & CHAR] & 0237];
|
|
if (adrof(STRwarnebcdic))
|
|
xprintf(/*CGETS(9, 9, no NLS-String yet!*/
|
|
"Warning: Control character ^%c may be interpreted differently in EBCDIC.\n", *p & CHAR /*)*/);
|
|
#endif
|
|
}
|
|
else
|
|
c = *p;
|
|
*ptr = p;
|
|
return (c);
|
|
}
|
|
|
|
|
|
unsigned char *
|
|
unparsestring(const CStr *str, const Char *sep)
|
|
{
|
|
unsigned char *buf, *b;
|
|
Char p;
|
|
int l;
|
|
|
|
/* Worst-case is "\uuu" or result of wctomb() for each char from str */
|
|
buf = xmalloc((str->len + 1) * max(4, MB_LEN_MAX));
|
|
b = buf;
|
|
if (sep[0])
|
|
#ifndef WINNT_NATIVE
|
|
*b++ = sep[0];
|
|
#else /* WINNT_NATIVE */
|
|
*b++ = CHAR & sep[0];
|
|
#endif /* !WINNT_NATIVE */
|
|
|
|
for (l = 0; l < str->len; l++) {
|
|
p = str->buf[l];
|
|
if (Iscntrl(p)) {
|
|
*b++ = '^';
|
|
if (p == CTL_ESC('\177'))
|
|
*b++ = '?';
|
|
else
|
|
#ifdef IS_ASCII
|
|
*b++ = (unsigned char) (p | 0100);
|
|
#else
|
|
*b++ = _toebcdic[_toascii[p]|0100];
|
|
#endif
|
|
}
|
|
else if (p == '^' || p == '\\') {
|
|
*b++ = '\\';
|
|
*b++ = (unsigned char) p;
|
|
}
|
|
else if (p == ' ' || (Isprint(p) && !Isspace(p)))
|
|
b += one_wctomb((char *)b, p & CHAR);
|
|
else {
|
|
*b++ = '\\';
|
|
*b++ = ((p >> 6) & 7) + '0';
|
|
*b++ = ((p >> 3) & 7) + '0';
|
|
*b++ = (p & 7) + '0';
|
|
}
|
|
}
|
|
if (sep[0] && sep[1])
|
|
#ifndef WINNT_NATIVE
|
|
*b++ = sep[1];
|
|
#else /* WINNT_NATIVE */
|
|
*b++ = CHAR & sep[1];
|
|
#endif /* !WINNT_NATIVE */
|
|
*b++ = 0;
|
|
return buf; /* should check for overflow */
|
|
}
|