summaryrefslogtreecommitdiff
path: root/ext/ply/test/lex_module_import.py
diff options
context:
space:
mode:
authorNathan Binkert <nate@binkert.org>2009-08-16 13:39:58 -0700
committerNathan Binkert <nate@binkert.org>2009-08-16 13:39:58 -0700
commite1270f81bdc81f5a575b34c2d2c294bdde3e6f4f (patch)
treeb54af3469a338609faf04e67603c5264e79d59a5 /ext/ply/test/lex_module_import.py
parentbcaf93d182f43bf72d52104bb909324945904120 (diff)
downloadgem5-e1270f81bdc81f5a575b34c2d2c294bdde3e6f4f.tar.xz
ply: update PLY to version 3.2
Diffstat (limited to 'ext/ply/test/lex_module_import.py')
-rw-r--r--ext/ply/test/lex_module_import.py42
1 files changed, 42 insertions, 0 deletions
diff --git a/ext/ply/test/lex_module_import.py b/ext/ply/test/lex_module_import.py
new file mode 100644
index 000000000..df4208236
--- /dev/null
+++ b/ext/ply/test/lex_module_import.py
@@ -0,0 +1,42 @@
+# -----------------------------------------------------------------------------
+# lex_module_import.py
+#
+# A lexer defined in a module, but built in lex_module.py
+# -----------------------------------------------------------------------------
+
+tokens = (
+ 'NAME','NUMBER',
+ 'PLUS','MINUS','TIMES','DIVIDE','EQUALS',
+ 'LPAREN','RPAREN',
+ )
+
+# Tokens
+
+t_PLUS = r'\+'
+t_MINUS = r'-'
+t_TIMES = r'\*'
+t_DIVIDE = r'/'
+t_EQUALS = r'='
+t_LPAREN = r'\('
+t_RPAREN = r'\)'
+t_NAME = r'[a-zA-Z_][a-zA-Z0-9_]*'
+
+def t_NUMBER(t):
+ r'\d+'
+ try:
+ t.value = int(t.value)
+ except ValueError:
+ print("Integer value too large %s" % t.value)
+ t.value = 0
+ return t
+
+t_ignore = " \t"
+
+def t_newline(t):
+ r'\n+'
+ t.lineno += t.value.count("\n")
+
+def t_error(t):
+ print("Illegal character '%s'" % t.value[0])
+ t.lexer.skip(1)
+