From 5ce121ab1cf38815cc39b8b212f8f8eaf8d59ee4 Mon Sep 17 00:00:00 2001
From: Joerg Wunsch <j@uriah.heep.sax.de>
Date: Wed, 2 Nov 2005 21:49:52 +0000
Subject: [PATCH] Make the lexer work with Solaris' (10) default lex(1).

While Solaris' lex understands start conditions, they cannot be grouped,
so unfold the <strng> group.

All actions need braces, even if they only consist of a comment.

As the classic lex uses semi-static resource allocation, we need to bump
the resource limits quite a bit.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk@541 81a1dc3b-b13d-400b-aceb-764788c761c2
---
 avrdude/ChangeLog |  2 ++
 avrdude/lexer.l   | 35 +++++++++++++++++++----------------
 2 files changed, 21 insertions(+), 16 deletions(-)

diff --git a/avrdude/ChangeLog b/avrdude/ChangeLog
index 97ce4706..254c3592 100644
--- a/avrdude/ChangeLog
+++ b/avrdude/ChangeLog
@@ -2,6 +2,8 @@
 
 	* config.h: change YYSTYPE to be a single word, to work around
 	a bug in Solaris' yacc.
+	* lexer.l: remove incompatibilities with Solaris' default lex,
+	bump resource limits for lex.
 
 2005-11-01  Joerg Wunsch <j@uriah.heep.sax.de>
 
diff --git a/avrdude/lexer.l b/avrdude/lexer.l
index 5afa6154..b99ad3a4 100644
--- a/avrdude/lexer.l
+++ b/avrdude/lexer.l
@@ -50,6 +50,11 @@ SIGN     [+-]
 %x incl
 %x comment
 
+/* Bump resources for classic lex. */
+%e2000
+%p5000
+%n1000
+
 %%
 
 {SIGN}*{DIGIT}+            { yylval = number(yytext); return TKN_NUMBER; }
@@ -64,7 +69,7 @@ SIGN     [+-]
 
 #   { /* The following eats '#' style comments to end of line */
        BEGIN(comment); }
-<comment>[^\n] /* eat comments */ 
+<comment>[^\n] { /* eat comments */ }
 <comment>\n { lineno++; BEGIN(INITIAL); }
 
 
@@ -99,21 +104,19 @@ SIGN     [+-]
      }
 
 
-<strng>{
-  \" { *string_buf_ptr = 0; string_buf_ptr = string_buf; 
-         yylval = string(string_buf_ptr); BEGIN(INITIAL); return TKN_STRING; }
-  \\n  *string_buf_ptr++ = '\n';
-  \\t  *string_buf_ptr++ = '\t';
-  \\r  *string_buf_ptr++ = '\r';
-  \\b  *string_buf_ptr++ = '\b';
-  \\f  *string_buf_ptr++ = '\f';
-  \\(.|\n)  *(string_buf_ptr++) = yytext[1];
-  [^\\\n\"]+ { char *yptr = yytext; while (*yptr) 
+<strng>\" { *string_buf_ptr = 0; string_buf_ptr = string_buf;
+             yylval = string(string_buf_ptr); BEGIN(INITIAL); return TKN_STRING; }
+<strng>\\n  *string_buf_ptr++ = '\n';
+<strng>\\t  *string_buf_ptr++ = '\t';
+<strng>\\r  *string_buf_ptr++ = '\r';
+<strng>\\b  *string_buf_ptr++ = '\b';
+<strng>\\f  *string_buf_ptr++ = '\f';
+<strng>\\(.|\n)  *(string_buf_ptr++) = yytext[1];
+<strng>[^\\\n\"]+ { char *yptr = yytext; while (*yptr) 
                                          *(string_buf_ptr++) = *(yptr++); }
-  \n { fprintf(stderr, "error at line %d: unterminated character constant\n",
-         lineno); 
-         exit(1); }
-}
+<strng>\n { fprintf(stderr, "error at line %d: unterminated character constant\n",
+            lineno); 
+            exit(1); }
 
 allowfullpagebitstream { yylval=NULL; return K_ALLOWFULLPAGEBITSTREAM; }
 avr910           { yylval=NULL; return K_AVR910; }
@@ -216,7 +219,7 @@ yes              { yylval=new_token(K_YES); return K_YES; }
 "~"       { yylval = NULL; pyytext(); return TKN_TILDE; }
 
 "\n"      { lineno++; }
-[ \r\t]+  /* ignore whitespace */
+[ \r\t]+  { /* ignore whitespace */ }
 
 c: { fprintf(stderr, "error at %s:%d: possible old-style config file entry\n",
              infile, lineno);