Fix #161: Don't require 0d/0e/0f/0t prefix on floating point numbers.

While this is not mentioned in the GAS documentation, GAS doesn't require it.

svn path=/trunk/yasm/; revision=2158

4 files changed, 395 insertions, 1 deletions

diff --git a/modules/parsers/gas/gas-token.re b/modules/parsers/gas/gas-token.re
index c08da11a..0ac61f12 100644
--- a/modules/parsers/gas/gas-token.re
+++ b/modules/parsers/gas/gas-token.re
@@ -350,7 +350,21 @@ scan:
         }
 
         /* floating point value */
-        "0" [DdEeFfTt] [-+]? (digit+)? ("." digit*)? ('e' [-+]? digit+)? {
+        [-+]? digit* "." digit+ ('e' [-+]? digit+)? {
+            savech = s->tok[TOKLEN];
+            s->tok[TOKLEN] = '\0';
+            lvalp->flt = yasm_floatnum_create(TOK);
+            s->tok[TOKLEN] = savech;
+            RETURN(FLTNUM);
+        }
+        [-+]? digit+ "." digit* ('e' [-+]? digit+)? {
+            savech = s->tok[TOKLEN];
+            s->tok[TOKLEN] = '\0';
+            lvalp->flt = yasm_floatnum_create(TOK);
+            s->tok[TOKLEN] = savech;
+            RETURN(FLTNUM);
+        }
+        "0" [DdEeFfTt] [-+]? digit* ("." digit*)? ('e' [-+]? digit+)? {
             savech = s->tok[TOKLEN];
             s->tok[TOKLEN] = '\0';
             lvalp->flt = yasm_floatnum_create(TOK+2);
diff --git a/modules/parsers/gas/tests/Makefile.inc b/modules/parsers/gas/tests/Makefile.inc
index 44827334..756e3251 100644
--- a/modules/parsers/gas/tests/Makefile.inc
+++ b/modules/parsers/gas/tests/Makefile.inc
@@ -14,6 +14,8 @@ EXTRA_DIST += modules/parsers/gas/tests/execsect.asm
 EXTRA_DIST += modules/parsers/gas/tests/execsect.hex
 EXTRA_DIST += modules/parsers/gas/tests/gas-fill.asm
 EXTRA_DIST += modules/parsers/gas/tests/gas-fill.hex
+EXTRA_DIST += modules/parsers/gas/tests/gas-float.asm
+EXTRA_DIST += modules/parsers/gas/tests/gas-float.hex
 EXTRA_DIST += modules/parsers/gas/tests/gas-instlabel.asm
 EXTRA_DIST += modules/parsers/gas/tests/gas-instlabel.hex
 EXTRA_DIST += modules/parsers/gas/tests/gas-line-err.asm
diff --git a/modules/parsers/gas/tests/gas-float.asm b/modules/parsers/gas/tests/gas-float.asm
new file mode 100644
index 00000000..7101eed6
--- /dev/null
+++ b/modules/parsers/gas/tests/gas-float.asm
@@ -0,0 +1,2 @@
+.double 0.1
+.double -.0
diff --git a/modules/parsers/gas/tests/gas-float.hex b/modules/parsers/gas/tests/gas-float.hex
new file mode 100644
index 00000000..4daadf4c
--- /dev/null
+++ b/modules/parsers/gas/tests/gas-float.hex
@@ -0,0 +1,376 @@
+7f 
+45 
+4c 
+46 
+01 
+01 
+01 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+01 
+00 
+03 
+00 
+01 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+b0 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+34 
+00 
+00 
+00 
+00 
+00 
+28 
+00 
+05 
+00 
+01 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+9a 
+99 
+99 
+99 
+99 
+99 
+b9 
+3f 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+80 
+00 
+2e 
+74 
+65 
+78 
+74 
+00 
+2e 
+73 
+74 
+72 
+74 
+61 
+62 
+00 
+2e 
+73 
+79 
+6d 
+74 
+61 
+62 
+00 
+2e 
+73 
+68 
+73 
+74 
+72 
+74 
+61 
+62 
+00 
+00 
+00 
+00 
+00 
+2d 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+01 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+04 
+00 
+f1 
+ff 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+03 
+00 
+04 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+17 
+00 
+00 
+00 
+03 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+50 
+00 
+00 
+00 
+21 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+07 
+00 
+00 
+00 
+03 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+74 
+00 
+00 
+00 
+03 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+0f 
+00 
+00 
+00 
+02 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+78 
+00 
+00 
+00 
+30 
+00 
+00 
+00 
+02 
+00 
+00 
+00 
+03 
+00 
+00 
+00 
+04 
+00 
+00 
+00 
+10 
+00 
+00 
+00 
+01 
+00 
+00 
+00 
+01 
+00 
+00 
+00 
+06 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+40 
+00 
+00 
+00 
+10 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+00 
+10 
+00 
+00 
+00 
+00 
+00 
+00 
+00