Add example files to SVN

1 files changed, 49 insertions, 0 deletions

diff --git a/src/examples/linenoExample.py b/src/examples/linenoExample.py
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+++ b/src/examples/linenoExample.py
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+#

+# linenoExample.py

+#

+# an example of using the location value returned by pyparsing to

+# extract the line and column number of the location of the matched text,

+# or to extract the entire line of text.

+#

+# Copyright (c) 2006, Paul McGuire

+#

+from pyparsing import *

+

+data = """Now is the time

+for all good men

+to come to the aid

+of their country."""

+

+# demonstrate use of lineno, line, and col in a parse action

+def reportLongWords(st,locn,toks):

+    word = toks[0]

+    if len(word) > 3:

+        print "Found '%s' on line %d at column %d" % (word, lineno(locn,st), col(locn,st))

+        print "The full line of text was:"

+        print "'%s'" % line(locn,st)

+        print (" "*col(locn,st))+" ^"

+        print 

+        

+wd = Word(alphas).setParseAction( reportLongWords )

+OneOrMore(wd).parseString(data)

+

+

+# demonstrate returning an object from a parse action, containing more information

+# than just the matching token text

+class Token(object):

+    def __init__(self, st, locn, tokString):

+        self.tokenString = tokString

+        self.locn = locn

+        self.sourceLine = line(locn,st)

+        self.lineNo = lineno(locn,st)

+        self.col = col(locn,st)

+    def __str__(self):

+        return "%(tokenString)s (line: %(lineNo)d, col: %(col)d)" % self.__dict__

+        

+def createTokenObject(st,locn,toks):

+    return Token(st,locn, toks[0])

+

+wd = Word(alphas).setParseAction( createTokenObject )

+

+for tokenObj in OneOrMore(wd).parseString(data):

+    print tokenObj