X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=userv.git;a=blobdiff_plain;f=lexer.l.m4;h=7b42a1d33914f1678f5098402121c325e9445b6d;hp=22ad0e0ead615ba0f4becb522d88a60c8e655b74;hb=a271d7dfc7a7ab9509daf656f0a92a55c7fe7257;hpb=949af4df9625f3371e146f7c78f4f1a17a2bf6db

diff --git a/lexer.l.m4 b/lexer.l.m4
index 22ad0e0..7b42a1d 100644
--- a/lexer.l.m4
+++ b/lexer.l.m4
@@ -132,6 +132,7 @@ struct error_handling {
 static struct error_handling eh = { tokv_word_errorstostderr, 0,0,0,0,0 };
 
 static int dequote(char *inplace);
+static void countnewlines(void);
 
 #define YY_NO_UNPUT
 
@@ -155,40 +156,35 @@ changequote({*,*})
 			  char *ep;
 			  lr_min= (int)strtoul(yytext,&ep,10);
 			  assert(*ep == HYPHEN);
-			  assert(*++ep);
+			  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]*\\[\ \t]*\n[\ \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 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;
-			}
-[^\ \t\n\\]+		return tokv_barestring;
-<<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(`,')
 %%