dnl userv - lexer.l.m4
dnl lexer, passed through m4 with defs from langauge.i4
/*
- * Copyright (C)1996-1997 Ian Jackson
+ * Copyright (C)1996-1997,1999 Ian Jackson
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
#include <fnmatch.h>
#include <limits.h>
#include <dirent.h>
+#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
+#include <errno.h>
#include "config.h"
#include "common.h"
#include "daemon.h"
#include "lib.h"
+#include "both.h"
#include "tokens.h"
#define HYPHEN '-'
typedef int directive_fnt(int dtoken);
static directive_fnt df_reject, df_execute, df_executefrompath;
-static directive_fnt df_executefromdirectory;
+static directive_fnt df_executefromdirectory, df_executebuiltin;
static directive_fnt df_errorstostderr, df_errorstosyslog, df_errorstofile;
-static directive_fnt dfg_fdwant, dfg_setflag;
+static directive_fnt dfg_fdwant, dfg_setflag, dfg_lookupquotemode;
static directive_fnt df_reset, df_cd, df_userrcfile, df_include;
static directive_fnt df_includelookup, df_includedirectory;
static directive_fnt df_message, df_error, df_quit, df_eof;
/* directive functions return:
* 0 for success having scanned up to and including end of line but not beyond,
* or tokv_error or tokv_quit.
+ * They expect to parse the whitespace before their parameters (if any).
*/
-typedef int parmcondition_fnt(int ctoken, char **parmvalues, int *rtrue);
+typedef int parmcondition_fnt(int ctoken, char *const *parmvalues, int *rtrue);
static parmcondition_fnt pcf_glob, pcf_range, pcf_grep;
/* all conditional functions return tokv_error for failure or 0 for success
* at parsing and testing, in which case *rtrue is set to 0 or 1.
* On success they have scanned up to and including the condition's
- * terminating newline.
+ * terminating newline; the pcf_... functions expect to parse the whitespace
+ * between the parameter name and the condition's arguments.
+ * Otherwise they return tokv_error.
* The parameter-based conditionals take a list of parameter values
* as obtained from the parameter functions and pa_parameter,
* and do _not_ free it.
* freeparm can be used to free such an array.
*/
+typedef int builtinserviceparse_fnt(char ***rnewargs);
+static builtinserviceparse_fnt bispa_none, bispa_parameter;
+/* These parse the arguments to a builtin service, including the
+ * newline at the end of the line. *rnewargs will initially be
+ * null, indicating that no arguments are to be set; the function
+ * may store a mallocd array of mallocd strings in it,
+ * containing the arguments it wishes to have set (null-pointer
+ * terminated).
+ */
+
static int yylex(void);
/* Returns a token (which may be an eof or error exception) */
static directive_fnt *lr_dir;
static parmcondition_fnt *lr_parmcond;
+static builtinserviceparse_fnt *lr_bispa;
+static builtinserviceexec_fnt *lr_bisexec;
static parameter_fnt *lr_parameter;
static int lr_loglevel, lr_logfacility, lr_min, lr_max, *lr_flag;
static int lr_flagval, lr_controlend;
struct parser_state {
int lineno, reportlineno, notedreferer, isinternal;
const char *filename;
+ struct stat filestab;
YY_BUFFER_STATE ybuf;
struct parser_state *upstate;
};
struct error_handling {
int handling; /* One of the error handling modes tokt_ehandlemode */
- int logfacility, loglevel, filekeep;
+ int logfacility, loglevel;
+ int filekeep; /* File is in use by higher-level errors-push, leave it open */
FILE *file;
char *filename;
};
static struct error_handling eh = { tokv_word_errorstostderr, 0,0,0,0,0 };
static int dequote(char *inplace);
+static void countnewlines(void);
%}
+
%option noyywrap
+%option nounput
+
%%
dnl simple words
}
[0-9]{1,8}-[0-9]{1,8} {
char *ep;
- lr_min=(int)strtoul(yytext,&ep,10);
+ lr_min= (int)strtoul(yytext,&ep,10);
assert(*ep == HYPHEN);
- assert(*++ep);
- lr_max=(int)strtoul(ep,&ep,10);
+ ep++; assert(*ep);
+ lr_max= (int)strtoul(ep,&ep,10);
assert(!*ep);
- if (lr_max < lr_min) {
- parseerrprint("fd range has min > max");
- return tokv_error;
- }
+ if (lr_max < lr_min)
+ return parseerrprint("fd range has min > max");
return tokv_fdrange;
}
[0-9]{1,8}- {
char *ep;
lr_min= (int)strtoul(yytext,&ep,10);
assert(*ep == HYPHEN);
- assert(!*++ep);
+ ep++; assert(!*ep);
lr_max=-1;
return tokv_fdstoend;
}
-[\ \t]+ return tokv_lwsp;
+([\ \t]*\\[\ \t]*\n[\ \t]*)+ countnewlines(); return tokv_lwsp;
+[\ \t]+ return tokv_lwsp;
[\ \t]*\n cstate->lineno++; return tokv_newline;
[\ \t]*\#[^\n]*\n cstate->lineno++; return tokv_newline;
-[\ \t]*\#[^\n]* {
- parseerrprint("missing newline at eof after comment");
- return tokv_error;
- }
-[^\ \t\n]+ return tokv_barestring;
-\"([^\\\"\n]|\\[a-z]|\\[0-9]{3}|\\x[0-9A-Fa-f]{2}|\\[:punct:]|\\[ \t]*\n)*\" {
+[\ \t]*\#[^\n]* return parseerrprint("missing newline at eof after comment");
+\"([^\\\"\n]|\\[a-z]|\\[0-9]{3}|\\x[0-9A-Fa-f]{2}|\\[[:punct:]]|\\[ \t]*\n)*\" {
+ countnewlines();
return dequote(yytext);
}
-\".* {
- parseerrprint("misquoted or unterminated string");
- return tokv_error;
- }
-<<EOF>> return tokv_eof;
+[^\ \t\n\\\"]+ return tokv_barestring;
+<<EOF>> return tokv_eof;
+\" return parseerrprint("misquoted or unterminated string");
+\\ return parseerrprint("unexpected backslash");
+. abort(); /* expect lex warning "rule cannot be matched" */
*}
changequote(`,')
%%
+
+const char *const builtinservicehelpstrings[]= {
+undivert(5)dnl
+ 0
+};
`
#include "parser.c"
'
divert(-1)
undivert
-
~ian / userv.git / blobdiff