%option nostdinit noyywrap never-interactive full ecs
-%option 8bit nodefault perf-report perf-report
-%option noinput
+%option 8bit nodefault yylineno
%x COMMAND HELP STRING PARAM
%{
/*
static int last_ts, first_ts;
+static char *expand_token(const char *in, size_t n);
+static void append_expanded_string(const char *in);
static void zconf_endhelp(void);
static void zconf_endfile(void);
if (new_size > text_asize) {
new_size += START_STRSIZE - 1;
new_size &= -START_STRSIZE;
- text = realloc(text, new_size);
+ text = xrealloc(text, new_size);
text_asize = new_size;
}
memcpy(text + text_size, str, size);
memcpy(text, str, size);
text[size] = 0;
}
+
+static void warn_ignored_character(char chr)
+{
+ fprintf(stderr,
+ "%s:%d:warning: ignoring unsupported character '%c'\n",
+ zconf_curname(), zconf_lineno(), chr);
+}
%}
-n [A-Za-z0-9_]
+n [A-Za-z0-9_-]
%%
int str = 0;
[ \t]*#.*\n |
[ \t]*\n {
- current_file->lineno++;
return T_EOL;
}
[ \t]*#.*
const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
BEGIN(PARAM);
current_pos.file = current_file;
- current_pos.lineno = current_file->lineno;
+ current_pos.lineno = yylineno;
if (id && id->flags & TF_COMMAND) {
- zconflval.id = id;
+ yylval.id = id;
return id->token;
}
alloc_string(yytext, yyleng);
- zconflval.string = text;
+ yylval.string = text;
return T_WORD;
}
- .
+ . warn_ignored_character(*yytext);
\n {
BEGIN(INITIAL);
- current_file->lineno++;
return T_EOL;
}
}
"!" return T_NOT;
"=" return T_EQUAL;
"!=" return T_UNEQUAL;
+ "<=" return T_LESS_EQUAL;
+ ">=" return T_GREATER_EQUAL;
+ "<" return T_LESS;
+ ">" return T_GREATER;
\"|\' {
str = yytext[0];
new_string();
BEGIN(STRING);
}
- \n BEGIN(INITIAL); current_file->lineno++; return T_EOL;
- --- /* ignore */
- ({n}|[-/.])+ {
+ \n BEGIN(INITIAL); return T_EOL;
+ ({n}|[/.])+ {
const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
if (id && id->flags & TF_PARAM) {
- zconflval.id = id;
+ yylval.id = id;
return id->token;
}
alloc_string(yytext, yyleng);
- zconflval.string = text;
+ yylval.string = text;
return T_WORD;
}
+ ({n}|[/.$])+ {
+ /* this token includes at least one '$' */
+ yylval.string = expand_token(yytext, yyleng);
+ if (strlen(yylval.string))
+ return T_WORD;
+ free(yylval.string);
+ }
#.* /* comment */
- \\\n current_file->lineno++;
+ \\\n ;
[[:blank:]]+
- . {
- fprintf(stderr,
- "%s:%d:warning: ignoring unsupported character '%c'\n",
- zconf_curname(), zconf_lineno(), *yytext);
- }
+ . warn_ignored_character(*yytext);
<<EOF>> {
BEGIN(INITIAL);
}
}
<STRING>{
- [^'"\\\n]+/\n {
+ "$".* append_expanded_string(yytext);
+ [^$'"\\\n]+/\n {
append_string(yytext, yyleng);
- zconflval.string = text;
+ yylval.string = text;
return T_WORD_QUOTE;
}
- [^'"\\\n]+ {
+ [^$'"\\\n]+ {
append_string(yytext, yyleng);
}
\\.?/\n {
append_string(yytext + 1, yyleng - 1);
- zconflval.string = text;
+ yylval.string = text;
return T_WORD_QUOTE;
}
\\.? {
\'|\" {
if (str == yytext[0]) {
BEGIN(PARAM);
- zconflval.string = text;
+ yylval.string = text;
return T_WORD_QUOTE;
} else
append_string(yytext, 1);
}
\n {
- printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno());
- current_file->lineno++;
+ fprintf(stderr,
+ "%s:%d:warning: multi-line strings not supported\n",
+ zconf_curname(), zconf_lineno());
BEGIN(INITIAL);
return T_EOL;
}
}
}
[ \t]*\n/[^ \t\n] {
- current_file->lineno++;
zconf_endhelp();
return T_HELPTEXT;
}
[ \t]*\n {
- current_file->lineno++;
append_string("\n", 1);
}
[^ \t\n].* {
}
%%
+static char *expand_token(const char *in, size_t n)
+{
+ char *out;
+ int c;
+ char c2;
+ const char *rest, *end;
+
+ new_string();
+ append_string(in, n);
+
+ /* get the whole line because we do not know the end of token. */
+ while ((c = input()) != EOF) {
+ if (c == '\n') {
+ unput(c);
+ break;
+ }
+ c2 = c;
+ append_string(&c2, 1);
+ }
+
+ rest = text;
+ out = expand_one_token(&rest);
+
+ /* push back unused characters to the input stream */
+ end = rest + strlen(rest);
+ while (end > rest)
+ unput(*--end);
+
+ free(text);
+
+ return out;
+}
+
+static void append_expanded_string(const char *str)
+{
+ const char *end;
+ char *res;
+
+ str++;
+
+ res = expand_dollar(&str);
+
+ /* push back unused characters to the input stream */
+ end = str + strlen(str);
+ while (end > str)
+ unput(*--end);
+
+ append_string(res, strlen(res));
+
+ free(res);
+}
+
void zconf_starthelp(void)
{
new_string();
static void zconf_endhelp(void)
{
- zconflval.string = text;
+ yylval.string = text;
BEGIN(INITIAL);
}
{
yyin = zconf_fopen(name);
if (!yyin) {
- printf("can't find file %s\n", name);
+ fprintf(stderr, "can't find file %s\n", name);
exit(1);
}
memset(current_buf, 0, sizeof(*current_buf));
current_file = file_lookup(name);
- current_file->lineno = 1;
+ yylineno = 1;
}
void zconf_nextfile(const char *name)
current_buf->state = YY_CURRENT_BUFFER;
yyin = zconf_fopen(file->name);
if (!yyin) {
- printf("%s:%d: can't open file \"%s\"\n",
- zconf_curname(), zconf_lineno(), file->name);
+ fprintf(stderr, "%s:%d: can't open file \"%s\"\n",
+ zconf_curname(), zconf_lineno(), file->name);
exit(1);
}
yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
buf->parent = current_buf;
current_buf = buf;
- for (iter = current_file->parent; iter; iter = iter->parent ) {
- if (!strcmp(current_file->name,iter->name) ) {
- printf("%s:%d: recursive inclusion detected. "
- "Inclusion path:\n current file : '%s'\n",
- zconf_curname(), zconf_lineno(),
- zconf_curname());
- iter = current_file->parent;
- while (iter && \
- strcmp(iter->name,current_file->name)) {
- printf(" included from: '%s:%d'\n",
- iter->name, iter->lineno-1);
+ current_file->lineno = yylineno;
+ file->parent = current_file;
+
+ for (iter = current_file; iter; iter = iter->parent) {
+ if (!strcmp(iter->name, file->name)) {
+ fprintf(stderr,
+ "Recursive inclusion detected.\n"
+ "Inclusion path:\n"
+ " current file : %s\n", file->name);
+ iter = file;
+ do {
iter = iter->parent;
- }
- if (iter)
- printf(" included from: '%s:%d'\n",
- iter->name, iter->lineno+1);
+ fprintf(stderr, " included from: %s:%d\n",
+ iter->name, iter->lineno - 1);
+ } while (strcmp(iter->name, file->name));
exit(1);
}
}
- file->lineno = 1;
- file->parent = current_file;
+
+ yylineno = 1;
current_file = file;
}
struct buffer *parent;
current_file = current_file->parent;
+ if (current_file)
+ yylineno = current_file->lineno;
parent = current_buf->parent;
if (parent) {