astr variableDump(le *varlist)
{
astr as = astr_new();
for (; varlist; varlist = varlist->list_next) {
if (varlist->branch) {
astr_afmt(as, "%s \t", varlist->data);
astr_cat_delete(as, leDumpReformat(varlist->branch));
astr_cat_char(as, '\n');
}
}
return as;
}
/*
* Convert a key code sequence into a key code sequence string.
*/
astr keyvectostr(size_t *keys, size_t numkeys)
{
size_t i;
astr as = astr_new();
for (i = 0; i < numkeys; i++) {
astr key = chordtostr(keys[i]);
astr_cat(as, key);
astr_delete(key);
if (i < numkeys - 1)
astr_cat_char(as, ' ');
}
return as;
}
static void draw_status_line(size_t line, Window *wp)
{
size_t i;
char *buf, *eol_type;
Point pt = window_pt(wp);
astr as, bs;
term_attrset(1, FONT_REVERSE);
term_move(line, 0);
for (i = 0; i < wp->ewidth; ++i)
term_addch('-');
if (cur_bp->eol == coding_eol_cr)
eol_type = "(Mac)";
else if (cur_bp->eol == coding_eol_crlf)
eol_type = "(DOS)";
else
eol_type = ":";
term_move(line, 0);
bs = astr_afmt(astr_new(), "(%d,%d)", pt.n+1, get_goalc_wp(wp));
as = astr_afmt(astr_new(), "--%s%2s %-15s %s %-9s (Text",
eol_type, make_mode_line_flags(wp), wp->bp->name,
make_screen_pos(wp, &buf), astr_cstr(bs));
free(buf);
astr_delete(bs);
if (wp->bp->flags & BFLAG_AUTOFILL)
astr_cat_cstr(as, " Fill");
if (wp->bp->flags & BFLAG_OVERWRITE)
astr_cat_cstr(as, " Ovwrt");
if (thisflag & FLAG_DEFINING_MACRO)
astr_cat_cstr(as, " Def");
if (wp->bp->flags & BFLAG_ISEARCH)
astr_cat_cstr(as, " Isearch");
astr_cat_char(as, ')');
term_addnstr(astr_cstr(as), min(term_width(), astr_len(as)));
astr_delete(as);
term_attrset(1, FONT_NORMAL);
}
/*
* Return the current directory.
*/
static astr get_current_dir(void)
{
astr buf;
int p;
if (cur_bp->filename != NULL)
/* If the current buffer has a filename, get the current directory
name from it. */
buf = astr_new_cstr(cur_bp->filename);
else { /* Get the current directory name from the system. */
buf = agetcwd();
if (astr_len(buf) != 0 && *astr_char(buf, -1) != '/')
astr_cat_char(buf, '/');
}
p = astr_rfind_cstr(buf, "/");
astr_truncate(buf, p + 1);
return buf;
}
/*
* Convert a key like "\\C-xrs" to "C-x r s"
*/
astr simplify_key(char *key)
{
int i, j;
size_t *keys;
astr dest = astr_new();
if (key == NULL)
return dest;
i = keystrtovec(key, &keys);
for (j = 0; j < i; j++) {
astr as;
if (j > 0)
astr_cat_char(dest, ' ');
as = chordtostr(keys[j]);
astr_cat(dest, as);
astr_delete(as);
}
if (i > 0)
free(keys);
return dest;
}
static void
draw_status_line (size_t line, Window wp)
{
term_attrset (FONT_REVERSE);
term_move (line, 0);
for (size_t i = 0; i < get_window_ewidth (wp); ++i)
term_addstr ("-");
const char *eol_type;
if (get_buffer_eol (cur_bp) == coding_eol_cr)
eol_type = "(Mac)";
else if (get_buffer_eol (cur_bp) == coding_eol_crlf)
eol_type = "(DOS)";
else
eol_type = ":";
term_move (line, 0);
size_t n = offset_to_line (get_window_bp (wp), window_o (wp));
astr as = astr_fmt ("--%s%2s %-15s %s %-9s (Fundamental",
eol_type, make_mode_line_flags (wp), get_buffer_name (get_window_bp (wp)),
make_screen_pos (wp), astr_cstr (astr_fmt ("(%zu,%zu)", n + 1,
get_goalc_bp (get_window_bp (wp), window_o (wp)))));
if (get_buffer_autofill (get_window_bp (wp)))
astr_cat_cstr (as, " Fill");
if (thisflag & FLAG_DEFINING_MACRO)
astr_cat_cstr (as, " Def");
if (get_buffer_isearch (get_window_bp (wp)))
astr_cat_cstr (as, " Isearch");
astr_cat_char (as, ')');
term_addstr (astr_cstr (as));
term_attrset (FONT_NORMAL);
}
/*
* This functions does some corrections and expansions to
* the passed path:
*
* - expands `~/' and `~name/' expressions;
* - replaces `//' with `/' (restarting from the root directory);
* - removes `..' and `.' entries.
*
* The return value indicates success or failure.
*/
bool
expand_path (astr path)
{
int ok = true;
const char *sp = astr_cstr (path);
astr epath = astr_new ();
if (*sp != '/' && *sp != '~')
{
astr_cat (epath, agetcwd ());
if (astr_len (epath) == 0 ||
astr_get (epath, astr_len (epath) - 1) != '/')
astr_cat_char (epath, '/');
}
for (const char *p = sp; *p != '\0';)
{
if (*p == '/')
{
if (*++p == '/')
{ /* Got `//'. Restart from this point. */
while (*p == '/')
p++;
astr_truncate (epath, 0);
}
if (astr_len (epath) == 0 ||
astr_get (epath, astr_len (epath) - 1) != '/')
astr_cat_char (epath, '/');
}
else if (*p == '~' && (p == sp || p[-1] == '/'))
{ /* Got `/~' or leading `~'. Restart from this point. */
struct passwd *pw;
astr_truncate (epath, 0);
++p;
if (*p == '/')
{ /* Got `~/'. Insert the user's home directory. */
pw = getpwuid (getuid ());
if (pw == NULL)
{
ok = false;
break;
}
if (!STREQ (pw->pw_dir, "/"))
astr_cat_cstr (epath, pw->pw_dir);
}
else
{ /* Got `~something'. Insert that user's home directory. */
astr as = astr_new ();
while (*p != '\0' && *p != '/')
astr_cat_char (as, *p++);
pw = getpwnam (astr_cstr (as));
if (pw == NULL)
{
ok = false;
break;
}
astr_cat_cstr (epath, pw->pw_dir);
}
}
else if (*p == '.' && (p[1] == '/' || p[1] == '\0'))
{ /* Got `.'. */
++p;
}
else if (*p == '.' && p[1] == '.' && (p[2] == '/' || p[2] == '\0'))
{ /* Got `..'. */
if (astr_len (epath) >= 1 && astr_get (epath, astr_len (epath) - 1) == '/')
astr_truncate (epath, astr_len (epath) - 1);
while (astr_get (epath, astr_len (epath) - 1) != '/' && astr_len (epath) >= 1)
astr_truncate (epath, astr_len (epath) - 1);
p += 2;
}
if (*p != '~')
while (*p != '\0' && *p != '/')
astr_cat_char (epath, *p++);
}
astr_cpy (path, epath);
return ok;
}
/*
* Convert a key chord into its ASCII representation
*/
astr chordtostr(size_t key)
{
astr as = astr_new();
if (key & KBD_CTRL)
astr_cat_cstr(as, "C-");
if (key & KBD_META)
astr_cat_cstr(as, "M-");
key &= ~(KBD_CTRL | KBD_META);
switch (key) {
case KBD_PGUP:
astr_cat_cstr(as, "<prior>");
break;
case KBD_PGDN:
astr_cat_cstr(as, "<next>");
break;
case KBD_HOME:
astr_cat_cstr(as, "<home>");
break;
case KBD_END:
astr_cat_cstr(as, "<end>");
break;
case KBD_DEL:
astr_cat_cstr(as, "<delete>");
break;
case KBD_BS:
astr_cat_cstr(as, "<backspace>");
break;
case KBD_INS:
astr_cat_cstr(as, "<insert>");
break;
case KBD_LEFT:
astr_cat_cstr(as, "<left>");
break;
case KBD_RIGHT:
astr_cat_cstr(as, "<right>");
break;
case KBD_UP:
astr_cat_cstr(as, "<up>");
break;
case KBD_DOWN:
astr_cat_cstr(as, "<down>");
break;
case KBD_RET:
astr_cat_cstr(as, "<RET>");
break;
case KBD_TAB:
astr_cat_cstr(as, "<TAB>");
break;
case KBD_F1:
astr_cat_cstr(as, "<f1>");
break;
case KBD_F2:
astr_cat_cstr(as, "<f2>");
break;
case KBD_F3:
astr_cat_cstr(as, "<f3>");
break;
case KBD_F4:
astr_cat_cstr(as, "<f4>");
break;
case KBD_F5:
astr_cat_cstr(as, "<f5>");
break;
case KBD_F6:
astr_cat_cstr(as, "<f6>");
break;
case KBD_F7:
astr_cat_cstr(as, "<f7>");
break;
case KBD_F8:
astr_cat_cstr(as, "<f8>");
break;
case KBD_F9:
astr_cat_cstr(as, "<f9>");
break;
case KBD_F10:
astr_cat_cstr(as, "<f10>");
break;
case KBD_F11:
astr_cat_cstr(as, "<f11>");
break;
case KBD_F12:
astr_cat_cstr(as, "<f12>");
break;
case ' ':
astr_cat_cstr(as, "SPC");
break;
default:
if (isgraph(key))
astr_cat_char(as, (int)(key & 0xff));
else
astr_afmt(as, "<%x>", key);
}
return as;
}
/*
* Read the file contents into a buffer.
* Return quietly if the file doesn't exist, or other error.
*/
void read_from_disk(const char *filename)
{
Line *lp;
FILE *fp;
int i, size, first_eol = TRUE;
char *this_eol_type;
size_t eol_len = 0, total_eols = 0;
char buf[BUFSIZ];
if ((fp = fopen(filename, "r")) == NULL) {
if (errno != ENOENT) {
minibuf_write("%s: %s", filename, strerror(errno));
cur_bp->flags |= BFLAG_READONLY;
}
return;
}
#if HAVE_UNISTD_H
if (!check_writable(filename))
cur_bp->flags |= BFLAG_READONLY;
#endif
lp = cur_bp->pt.p;
/* Read first chunk and determine EOL type. */
if ((size = fread(buf, 1, BUFSIZ, fp)) > 0) {
for (i = 0; i < size && total_eols < MAX_EOL_CHECK_COUNT; i++) {
if (buf[i] == '\n' || buf[i] == '\r') {
total_eols++;
if (buf[i] == '\n')
this_eol_type = coding_eol_lf;
else if (i >= size || buf[i + 1] != '\n')
this_eol_type = coding_eol_cr;
else {
this_eol_type = coding_eol_crlf;
i++;
}
if (first_eol) {
/* This is the first end-of-line. */
cur_bp->eol = this_eol_type;
first_eol = FALSE;
} else if (cur_bp->eol != this_eol_type) {
/* This EOL is different from the last; arbitrarily choose
LF. */
cur_bp->eol = coding_eol_lf;
break;
}
}
}
/* Process this and subsequent chunks into lines. */
eol_len = strlen(cur_bp->eol);
do {
for (i = 0; i < size; i++) {
if (strncmp(cur_bp->eol, buf + i, eol_len) != 0)
astr_cat_char(lp->item, buf[i]);
else {
lp = list_prepend(lp, astr_new());
++cur_bp->num_lines;
i += eol_len - 1;
}
}
} while ((size = fread(buf, 1, BUFSIZ, fp)) > 0);
}
list_next(lp) = cur_bp->lines;
list_prev(cur_bp->lines) = lp;
cur_bp->pt.p = list_next(cur_bp->lines);
fclose(fp);
}
/*
* This functions does some corrections and expansions to
* the passed path:
* - expands `~/' and `~name/' expressions;
* - replaces `//' with `/' (restarting from the root directory);
* - removes `..' and `.' entries.
*
* If something goes wrong, the string is deleted and NULL returned
*/
astr expand_path(astr path)
{
int ret = TRUE;
struct passwd *pw;
const char *sp = astr_cstr(path);
astr epath = astr_new();
if (*sp != '/') {
astr_cat_delete(epath, agetcwd());
if (astr_len(epath) == 0 || *astr_char(epath, -1) != '/')
astr_cat_char(epath, '/');
}
while (*sp != '\0') {
if (*sp == '/') {
if (*++sp == '/') {
/* Got `//'. Restart from this point. */
while (*sp == '/')
sp++;
astr_truncate(epath, 0);
}
astr_cat_char(epath, '/');
} else if (*sp == '~') {
if (*(sp + 1) == '/') {
/* Got `~/'. Restart from this point and insert the user's
home directory. */
astr_truncate(epath, 0);
if ((pw = getpwuid(getuid())) == NULL) {
ret = FALSE;
break;
}
if (strcmp(pw->pw_dir, "/") != 0)
astr_cat_cstr(epath, pw->pw_dir);
++sp;
} else {
/* Got `~something'. Restart from this point and insert that
user's home directory. */
astr as = astr_new();
astr_truncate(epath, 0);
++sp;
while (*sp != '\0' && *sp != '/')
astr_cat_char(as, *sp++);
pw = getpwnam(astr_cstr(as));
astr_delete(as);
if (pw == NULL) {
ret = FALSE;
break;
}
astr_cat_cstr(epath, pw->pw_dir);
}
} else if (*sp == '.') {
if (*(sp + 1) == '/' || *(sp + 1) == '\0') {
++sp;
if (*sp == '/' && *(sp + 1) != '/')
++sp;
} else if (*(sp + 1) == '.' &&
(*(sp + 2) == '/' || *(sp + 2) == '\0')) {
if (astr_len(epath) >= 1 && *astr_char(epath, -1) == '/')
astr_truncate(epath, -1);
while (*astr_char(epath, -1) != '/' &&
astr_len(epath) >= 1)
astr_truncate(epath, -1);
sp += 2;
if (*sp == '/' && *(sp + 1) != '/')
++sp;
} else
goto got_component;
} else {
const char *p;
got_component:
p = sp;
while (*p != '\0' && *p != '/')
p++;
if (*p == '\0') { /* Final filename */
astr_cat_cstr(epath, sp);
break;
} else { /* Non-final directory */
while (*sp != '/')
astr_cat_char(epath, *sp++);
}
}
}
astr_cpy(path, epath);
astr_delete(epath);
if (!ret) {
astr_delete(path);
return NULL;
}
return path;
}
static astr snagAToken(getcCallback getachar, ungetcCallback ungetachar, enum tokenname *tokenid)
{
int c;
int doublequotes = 0;
astr tok = astr_new();
*tokenid = T_EOF;
/* Chew space to next token */
do {
c = getachar();
/* Munch comments */
if (c == ';')
do {
c = getachar();
} while (c != EOF && c != '\n');
} while (c != EOF && (c == ' ' || c == '\t'));
/* Snag token */
if (c == '(') {
*tokenid = T_OPENPAREN;
return tok;
} else if (c == ')') {
*tokenid = T_CLOSEPAREN;
return tok;
} else if (c == '\'') {
*tokenid = T_QUOTE;
return tok;
} else if (c == '\n') {
*tokenid = T_NEWLINE;
return tok;
} else if (c == EOF) {
*tokenid = T_EOF;
return tok;
}
/* It looks like a string. Snag to the next whitespace. */
if (c == '\"') {
doublequotes = 1;
c = getachar();
}
while (1) {
astr_cat_char(tok, (char)c);
if (!doublequotes) {
if (c == ')' || c == '(' || c == ';' || c == ' ' || c == '\n' || c == '\r' || c == EOF) {
ungetachar(c);
astr_truncate(tok, (ptrdiff_t)-1);
if (!astr_cmp_cstr(tok, "quote")) {
*tokenid = T_QUOTE;
return tok;
}
*tokenid = T_WORD;
return tok;
}
} else {
switch (c) {
case '\n':
case '\r':
case EOF:
ungetachar(c);
/* Fall through */
case '\"':
astr_truncate(tok, (ptrdiff_t)-1);
*tokenid = T_WORD;
return tok;
}
}
c = getachar();
}
return tok;
}
