*/
/*
- Copyright (C) 2000-2004 Kern Sibbald and John Walker
+ Copyright (C) 2000-2005 Kern Sibbald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
/*
* Scan to "logical" end of line. I.e. end of line,
- * or semicolon.
+ * or semicolon, but stop on T_EOB (same as end of
+ * line except it is not eaten).
*/
void scan_to_eol(LEX *lc)
{
- Dmsg0(900, "start scan to eof\n");
- while (lex_get_token(lc, T_ALL) != T_EOL)
- { }
- Dmsg0(900, "done scan to eof\n");
+ int token;
+ Dmsg0(2000, "start scan to eof\n");
+ while ((token = lex_get_token(lc, T_ALL)) != T_EOL) {
+ if (token == T_EOB) {
+ lex_unget_char(lc);
+ return;
+ }
+ }
+}
+
+/*
+ * Get next token, but skip EOL
+ */
+int scan_to_next_not_eol(LEX * lc)
+{
+ int token;
+ do {
+ token = lex_get_token(lc, T_ALL);
+ } while (token == T_EOL);
+ return token;
}
-
/*
- * Format a scanner error message
+ * Format a scanner error message
*/
static void s_err(const char *file, int line, LEX *lc, const char *msg, ...)
{
va_start(arg_ptr, msg);
bvsnprintf(buf, sizeof(buf), msg, arg_ptr);
va_end(arg_ptr);
-
+
if (lc->line_no > lc->begin_line_no) {
- bsnprintf(more, sizeof(more),
+ bsnprintf(more, sizeof(more),
_("Problem probably begins at line %d.\n"), lc->begin_line_no);
} else {
more[0] = 0;
+ }
+ if (lc->line_no > 0) {
+ e_msg(file, line, M_ERROR_TERM, 0, _("Config error: %s\n"
+" : line %d, col %d of file %s\n%s\n%s"),
+ buf, lc->line_no, lc->col_no, lc->fname, lc->line, more);
+ } else {
+ e_msg(file, line, M_ERROR_TERM, 0, _("Config error: %s\n"), buf);
}
- e_msg(file, line, M_ERROR_TERM, 0, _("Config error: %s\n\
- : line %d, col %d of file %s\n%s\n%s"),
- buf, lc->line_no, lc->col_no, lc->fname, lc->line, more);
+}
+
+void lex_set_default_error_handler(LEX *lf)
+{
+ lf->scan_error = s_err;
}
{
LEX *of;
- Dmsg1(900, "Close lex file: %s\n", lf->fname);
+ Dmsg1(2000, "Close lex file: %s\n", lf->fname);
if (lf == NULL) {
- Emsg0(M_ABORT, 0, "Close of NULL file\n");
+ Emsg0(M_ABORT, 0, _("Close of NULL file\n"));
}
of = lf->next;
fclose(lf->fd);
- Dmsg1(900, "Close cfg file %s\n", lf->fname);
+ Dmsg1(2000, "Close cfg file %s\n", lf->fname);
free(lf->fname);
if (of) {
of->options = lf->options; /* preserve options */
memcpy(lf, of, sizeof(LEX));
- Dmsg1(900, "Restart scan of cfg file %s\n", of->fname);
+ Dmsg1(2000, "Restart scan of cfg file %s\n", of->fname);
} else {
of = lf;
lf = NULL;
return lf;
}
-/*
+/*
* Open a new configuration file. We push the
* state of the current file (lf) so that we
* can do includes. This is a bit of a hammer.
* the next field.
*
*/
-LEX *lex_open_file(LEX *lf, const char *filename, LEX_ERROR_HANDLER *scan_error)
-
+LEX *lex_open_file(LEX *lf, const char *filename, LEX_ERROR_HANDLER *scan_error)
+
{
LEX *nf;
FILE *fd;
char *fname = bstrdup(filename);
-
+
if ((fd = fopen(fname, "r")) == NULL) {
- Emsg2(M_ERROR_TERM, 0, _("Cannot open config file %s: %s\n"),
- fname, strerror(errno));
- return NULL; /* Never reached if exit_on_error == 1 */
+ return NULL;
}
- Dmsg1(900, "Open config file: %s\n", fname);
+ Dmsg1(400, "Open config file: %s\n", fname);
nf = (LEX *)malloc(sizeof(LEX));
- if (lf) {
+ if (lf) {
memcpy(nf, lf, sizeof(LEX));
memset(lf, 0, sizeof(LEX));
- lf->next = nf; /* if have lf, push it behind new one */
+ lf->next = nf; /* if have lf, push it behind new one */
lf->options = nf->options; /* preserve user options */
} else {
- lf = nf; /* start new packet */
+ lf = nf; /* start new packet */
memset(lf, 0, sizeof(LEX));
}
- lf->fd = fd;
- lf->fname = fname;
- lf->state = lex_none;
- lf->ch = L_EOL;
if (scan_error) {
lf->scan_error = scan_error;
} else {
- lf->scan_error = s_err;
+ lex_set_default_error_handler(lf);
}
- Dmsg1(900, "Return lex=%x\n", lf);
+ lf->fd = fd;
+ lf->fname = fname;
+ lf->state = lex_none;
+ lf->ch = L_EOL;
+ Dmsg1(2000, "Return lex=%x\n", lf);
return lf;
}
-/*
+/*
* Get the next character from the input.
* Returns the character or
* L_EOF if end of file
int lex_get_char(LEX *lf)
{
if (lf->ch == L_EOF) {
- Emsg0(M_ABORT, 0, "get_char: called after EOF\n");
+ Emsg0(M_ABORT, 0, _("get_char: called after EOF\n"));
}
if (lf->ch == L_EOL) {
- if (fgets(lf->line, MAXSTRING, lf->fd) == NULL) {
- lf->ch = L_EOF;
- if (lf->next) {
- lex_close_file(lf);
- }
- return lf->ch;
+ if (bfgets(lf->line, MAXSTRING, lf->fd) == NULL) {
+ lf->ch = L_EOF;
+ if (lf->next) {
+ lex_close_file(lf);
+ }
+ return lf->ch;
}
lf->line_no++;
lf->col_no = 0;
+ Dmsg2(1000, "fget line=%d %s", lf->line_no, lf->line);
}
- lf->ch = lf->line[lf->col_no];
+ lf->ch = (uint8_t)lf->line[lf->col_no];
if (lf->ch == 0) {
lf->ch = L_EOL;
} else {
lf->col_no++;
}
- Dmsg2(900, "lex_get_char: %c %d\n", lf->ch, lf->ch);
+ Dmsg2(2000, "lex_get_char: %c %d\n", lf->ch, lf->ch);
return lf->ch;
}
void lex_unget_char(LEX *lf)
{
- lf->col_no--;
+ lf->col_no--;
if (lf->ch == L_EOL)
lf->ch = 0;
}
{
if (lf->str_len >= MAXSTRING-3) {
Emsg3(M_ERROR_TERM, 0, _(
- _("Config token too long, file: %s, line %d, begins at line %d\n")),
- lf->fname, lf->line_no, lf->begin_line_no);
+ _("Config token too long, file: %s, line %d, begins at line %d\n")),
+ lf->fname, lf->line_no, lf->begin_line_no);
}
lf->str[lf->str_len++] = ch;
lf->str[lf->str_len] = 0;
/*
* Begin the string
*/
-static void begin_str(LEX *lf, int ch)
+static void begin_str(LEX *lf, int ch)
{
lf->str_len = 0;
lf->str[0] = 0;
static const char *lex_state_to_str(int state)
{
switch (state) {
- case lex_none: return "none";
- case lex_comment: return "comment";
- case lex_number: return "number";
- case lex_ip_addr: return "ip_addr";
- case lex_identifier: return "identifier";
- case lex_string: return "string";
- case lex_quoted_string: return "quoted_string";
+ case lex_none: return _("none");
+ case lex_comment: return _("comment");
+ case lex_number: return _("number");
+ case lex_ip_addr: return _("ip_addr");
+ case lex_identifier: return _("identifier");
+ case lex_string: return _("string");
+ case lex_quoted_string: return _("quoted_string");
default: return "??????";
}
}
val = str_to_int64(str);
if (errno != 0 || val < 0) {
scan_err1(lf, _("expected a postive integer number, got: %s"), str);
- /* NOT REACHED */
+ /* NOT REACHED */
}
}
return (uint32_t)val;
}
-/*
- *
+/*
+ *
* Get the next token from the input
*
*/
{
int ch;
int token = T_NONE;
- int esc_next = FALSE;
+ bool esc_next = false;
- Dmsg0(900, "enter lex_get_token\n");
+ Dmsg0(2000, "enter lex_get_token\n");
while (token == T_NONE) {
ch = lex_get_char(lf);
switch (lf->state) {
case lex_none:
- Dmsg2(900, "Lex state lex_none ch=%d,%x\n", ch, ch);
- if (B_ISSPACE(ch))
- break;
- if (B_ISALPHA(ch)) {
- if (lf->options & LOPT_NO_IDENT)
- lf->state = lex_string;
- else
- lf->state = lex_identifier;
- begin_str(lf, ch);
- break;
- }
- if (B_ISDIGIT(ch)) {
- lf->state = lex_number;
- begin_str(lf, ch);
- break;
- }
- Dmsg0(900, "Enter lex_none switch\n");
- switch (ch) {
- case L_EOF:
- token = T_EOF;
- Dmsg0(900, "got L_EOF set token=T_EOF\n");
- break;
+ Dmsg2(2000, "Lex state lex_none ch=%d,%x\n", ch, ch);
+ if (B_ISSPACE(ch))
+ break;
+ if (B_ISALPHA(ch)) {
+ if (lf->options & LOPT_NO_IDENT || lf->options & LOPT_STRING) {
+ lf->state = lex_string;
+ } else {
+ lf->state = lex_identifier;
+ }
+ begin_str(lf, ch);
+ break;
+ }
+ if (B_ISDIGIT(ch)) {
+ if (lf->options & LOPT_STRING) {
+ lf->state = lex_string;
+ } else {
+ lf->state = lex_number;
+ }
+ begin_str(lf, ch);
+ break;
+ }
+ Dmsg0(2000, "Enter lex_none switch\n");
+ switch (ch) {
+ case L_EOF:
+ token = T_EOF;
+ Dmsg0(2000, "got L_EOF set token=T_EOF\n");
+ break;
case '#':
- lf->state = lex_comment;
- break;
+ lf->state = lex_comment;
+ break;
case '{':
- token = T_BOB;
- begin_str(lf, ch);
- break;
+ token = T_BOB;
+ begin_str(lf, ch);
+ break;
case '}':
- token = T_EOB;
- begin_str(lf, ch);
- break;
+ token = T_EOB;
+ begin_str(lf, ch);
+ break;
case '"':
- lf->state = lex_quoted_string;
- begin_str(lf, 0);
- break;
- case '=':
- token = T_EQUALS;
- begin_str(lf, ch);
- break;
+ lf->state = lex_quoted_string;
+ begin_str(lf, 0);
+ break;
+ case '=':
+ token = T_EQUALS;
+ begin_str(lf, ch);
+ break;
case ',':
- token = T_COMMA;
- begin_str(lf, ch);
- break;
+ token = T_COMMA;
+ begin_str(lf, ch);
+ break;
case ';':
- token = T_EOL; /* treat ; like EOL */
- break;
- case L_EOL:
- Dmsg0(900, "got L_EOL set token=T_EOL\n");
- token = T_EOL;
- break;
+ if (expect != T_SKIP_EOL) {
+ token = T_EOL; /* treat ; like EOL */
+ }
+ break;
+ case L_EOL:
+ Dmsg0(2000, "got L_EOL set token=T_EOL\n");
+ if (expect != T_SKIP_EOL) {
+ token = T_EOL;
+ }
+ break;
case '@':
- lf->state = lex_include;
- begin_str(lf, 0);
- break;
- default:
- lf->state = lex_string;
- begin_str(lf, ch);
- break;
- }
- break;
+ lf->state = lex_include;
+ begin_str(lf, 0);
+ break;
+ default:
+ lf->state = lex_string;
+ begin_str(lf, ch);
+ break;
+ }
+ break;
case lex_comment:
- Dmsg1(900, "Lex state lex_comment ch=%x\n", ch);
- if (ch == L_EOL) {
- lf->state = lex_none;
- token = T_EOL;
- } else if (ch == L_EOF) {
- token = T_ERROR;
- }
- break;
+ Dmsg1(2000, "Lex state lex_comment ch=%x\n", ch);
+ if (ch == L_EOL) {
+ lf->state = lex_none;
+ if (expect != T_SKIP_EOL) {
+ token = T_EOL;
+ }
+ } else if (ch == L_EOF) {
+ token = T_ERROR;
+ }
+ break;
case lex_number:
- Dmsg2(900, "Lex state lex_number ch=%x %c\n", ch, ch);
- if (ch == L_EOF) {
- token = T_ERROR;
- break;
- }
- /* Might want to allow trailing specifications here */
- if (B_ISDIGIT(ch)) {
- add_str(lf, ch);
- break;
- }
-
- /* A valid number can be terminated by the following */
+ Dmsg2(2000, "Lex state lex_number ch=%x %c\n", ch, ch);
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
+ /* Might want to allow trailing specifications here */
+ if (B_ISDIGIT(ch)) {
+ add_str(lf, ch);
+ break;
+ }
+
+ /* A valid number can be terminated by the following */
if (B_ISSPACE(ch) || ch == L_EOL || ch == ',' || ch == ';') {
- token = T_NUMBER;
- lf->state = lex_none;
- } else {
- lf->state = lex_string;
- }
- lex_unget_char(lf);
- break;
+ token = T_NUMBER;
+ lf->state = lex_none;
+ } else {
+ lf->state = lex_string;
+ }
+ lex_unget_char(lf);
+ break;
case lex_ip_addr:
- if (ch == L_EOF) {
- token = T_ERROR;
- break;
- }
- Dmsg1(900, "Lex state lex_ip_addr ch=%x\n", ch);
- break;
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
+ Dmsg1(2000, "Lex state lex_ip_addr ch=%x\n", ch);
+ break;
case lex_string:
- Dmsg1(900, "Lex state lex_string ch=%x\n", ch);
- if (ch == L_EOF) {
- token = T_ERROR;
- break;
- }
+ Dmsg1(2000, "Lex state lex_string ch=%x\n", ch);
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
if (ch == '\n' || ch == L_EOL || ch == '=' || ch == '}' || ch == '{' ||
ch == '\r' || ch == ';' || ch == ',' || ch == '#' || (B_ISSPACE(ch)) ) {
- lex_unget_char(lf);
- token = T_UNQUOTED_STRING;
- lf->state = lex_none;
- break;
- }
- add_str(lf, ch);
- break;
+ lex_unget_char(lf);
+ token = T_UNQUOTED_STRING;
+ lf->state = lex_none;
+ break;
+ }
+ add_str(lf, ch);
+ break;
case lex_identifier:
- Dmsg2(900, "Lex state lex_identifier ch=%x %c\n", ch, ch);
- if (B_ISALPHA(ch)) {
- add_str(lf, ch);
- break;
- } else if (B_ISSPACE(ch)) {
- break;
+ Dmsg2(2000, "Lex state lex_identifier ch=%x %c\n", ch, ch);
+ if (B_ISALPHA(ch)) {
+ add_str(lf, ch);
+ break;
+ } else if (B_ISSPACE(ch)) {
+ break;
} else if (ch == '\n' || ch == L_EOL || ch == '=' || ch == '}' || ch == '{' ||
ch == '\r' || ch == ';' || ch == ',' || ch == '"' || ch == '#') {
- lex_unget_char(lf);
- token = T_IDENTIFIER;
- lf->state = lex_none;
- break;
- } else if (ch == L_EOF) {
- token = T_ERROR;
- lf->state = lex_none;
- begin_str(lf, ch);
- break;
- }
- /* Some non-alpha character => string */
- lf->state = lex_string;
- add_str(lf, ch);
- break;
+ lex_unget_char(lf);
+ token = T_IDENTIFIER;
+ lf->state = lex_none;
+ break;
+ } else if (ch == L_EOF) {
+ token = T_ERROR;
+ lf->state = lex_none;
+ begin_str(lf, ch);
+ break;
+ }
+ /* Some non-alpha character => string */
+ lf->state = lex_string;
+ add_str(lf, ch);
+ break;
case lex_quoted_string:
- Dmsg2(900, "Lex state lex_quoted_string ch=%x %c\n", ch, ch);
- if (ch == L_EOF) {
- token = T_ERROR;
- break;
- }
- if (ch == L_EOL) {
- esc_next = FALSE;
- break;
- }
- if (esc_next) {
- add_str(lf, ch);
- esc_next = FALSE;
- break;
- }
+ Dmsg2(2000, "Lex state lex_quoted_string ch=%x %c\n", ch, ch);
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
+ if (ch == L_EOL) {
+ esc_next = false;
+ break;
+ }
+ if (esc_next) {
+ add_str(lf, ch);
+ esc_next = false;
+ break;
+ }
if (ch == '\\') {
- esc_next = TRUE;
- break;
- }
+ esc_next = true;
+ break;
+ }
if (ch == '"') {
- token = T_QUOTED_STRING;
- lf->state = lex_none;
- break;
- }
- add_str(lf, ch);
- break;
- case lex_include: /* scanning a filename */
- if (ch == L_EOF) {
- token = T_ERROR;
- break;
- }
+ token = T_QUOTED_STRING;
+ lf->state = lex_none;
+ break;
+ }
+ add_str(lf, ch);
+ break;
+ case lex_include: /* scanning a filename */
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
if (B_ISSPACE(ch) || ch == '\n' || ch == L_EOL || ch == '}' || ch == '{' ||
ch == ';' || ch == ',' || ch == '"' || ch == '#') {
- lf->state = lex_none;
- lf = lex_open_file(lf, lf->str, NULL);
- break;
- }
- add_str(lf, ch);
- break;
+ /* Keep the original LEX so we can print an error if the included file can't be opened. */
+ LEX* lfori = lf;
+
+ lf->state = lex_none;
+ lf = lex_open_file(lf, lf->str, NULL);
+ if (lf == NULL) {
+ berrno be;
+ scan_err2(lfori, _("Cannot open included config file %s: %s\n"),
+ lfori->str, be.strerror());
+ return T_ERROR;
+ }
+ break;
+ }
+ add_str(lf, ch);
+ break;
}
- Dmsg4(900, "ch=%d state=%s token=%s %c\n", ch, lex_state_to_str(lf->state),
- lex_tok_to_str(token), ch);
+ Dmsg4(2000, "ch=%d state=%s token=%s %c\n", ch, lex_state_to_str(lf->state),
+ lex_tok_to_str(token), ch);
}
- Dmsg2(900, "lex returning: line %d token: %s\n", lf->line_no, lex_tok_to_str(token));
+ Dmsg2(2000, "lex returning: line %d token: %s\n", lf->line_no, lex_tok_to_str(token));
lf->token = token;
- /*
- * Here is where we check to see if the user has set certain
+ /*
+ * Here is where we check to see if the user has set certain
* expectations (e.g. 32 bit integer). If so, we do type checking
* and possible additional scanning (e.g. for range).
*/
case T_PINT32_RANGE:
if (token == T_NUMBER) {
- lf->pint32_val = scan_pint(lf, lf->str);
- lf->pint32_val2 = lf->pint32_val;
- token = T_PINT32;
+ lf->pint32_val = scan_pint(lf, lf->str);
+ lf->pint32_val2 = lf->pint32_val;
+ token = T_PINT32;
} else {
char *p = strchr(lf->str, '-');
- if (!p) {
- scan_err2(lf, _("expected an integer or a range, got %s: %s"),
- lex_tok_to_str(token), lf->str);
- token = T_ERROR;
- break;
- }
- *p++ = 0; /* terminate first half of range */
- lf->pint32_val = scan_pint(lf, lf->str);
- lf->pint32_val2 = scan_pint(lf, p);
- token = T_PINT32_RANGE;
+ if (!p) {
+ scan_err2(lf, _("expected an integer or a range, got %s: %s"),
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ break;
+ }
+ *p++ = 0; /* terminate first half of range */
+ lf->pint32_val = scan_pint(lf, lf->str);
+ lf->pint32_val2 = scan_pint(lf, p);
+ token = T_PINT32_RANGE;
}
break;
case T_INT32:
if (token != T_NUMBER || !is_a_number(lf->str)) {
scan_err2(lf, _("expected an integer number, got %s: %s"),
- lex_tok_to_str(token), lf->str);
- token = T_ERROR;
- break;
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ break;
}
errno = 0;
lf->int32_val = (int32_t)str_to_int64(lf->str);
if (errno != 0) {
scan_err2(lf, _("expected an integer number, got %s: %s"),
- lex_tok_to_str(token), lf->str);
- token = T_ERROR;
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
} else {
- token = T_INT32;
+ token = T_INT32;
}
break;
case T_INT64:
- Dmsg2(900, "int64=:%s: %f\n", lf->str, strtod(lf->str, NULL));
+ Dmsg2(2000, "int64=:%s: %f\n", lf->str, strtod(lf->str, NULL));
if (token != T_NUMBER || !is_a_number(lf->str)) {
scan_err2(lf, _("expected an integer number, got %s: %s"),
- lex_tok_to_str(token), lf->str);
- token = T_ERROR;
- break;
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ break;
}
errno = 0;
lf->int64_val = str_to_int64(lf->str);
if (errno != 0) {
scan_err2(lf, _("expected an integer number, got %s: %s"),
- lex_tok_to_str(token), lf->str);
- token = T_ERROR;
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
} else {
- token = T_INT64;
+ token = T_INT64;
}
break;
case T_NAME:
if (token != T_IDENTIFIER && token != T_UNQUOTED_STRING && token != T_QUOTED_STRING) {
scan_err2(lf, _("expected a name, got %s: %s"),
- lex_tok_to_str(token), lf->str);
- token = T_ERROR;
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
} else if (lf->str_len > MAX_RES_NAME_LENGTH) {
- scan_err3(lf, _("name %s length %d too long, max is %d\n"), lf->str,
- lf->str_len, MAX_RES_NAME_LENGTH);
- token = T_ERROR;
+ scan_err3(lf, _("name %s length %d too long, max is %d\n"), lf->str,
+ lf->str_len, MAX_RES_NAME_LENGTH);
+ token = T_ERROR;
}
break;
case T_STRING:
if (token != T_IDENTIFIER && token != T_UNQUOTED_STRING && token != T_QUOTED_STRING) {
scan_err2(lf, _("expected a string, got %s: %s"),
- lex_tok_to_str(token), lf->str);
- token = T_ERROR;
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
} else {
- token = T_STRING;
+ token = T_STRING;
}
break;
default:
- break; /* no expectation given */
+ break; /* no expectation given */
}
- lf->token = token; /* set possible new token */
+ lf->token = token; /* set possible new token */
return token;
}
projects / bacula / bacula / blobdiff