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-rw-r--r--Lib/plat-irix6/panelparser.py128
1 files changed, 0 insertions, 128 deletions
diff --git a/Lib/plat-irix6/panelparser.py b/Lib/plat-irix6/panelparser.py
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index c831c49..0000000
--- a/Lib/plat-irix6/panelparser.py
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@@ -1,128 +0,0 @@
-# Module 'parser'
-#
-# Parse S-expressions output by the Panel Editor
-# (which is written in Scheme so it can't help writing S-expressions).
-#
-# See notes at end of file.
-
-
-whitespace = ' \t\n'
-operators = '()\''
-separators = operators + whitespace + ';' + '"'
-
-
-# Tokenize a string.
-# Return a list of tokens (strings).
-#
-def tokenize_string(s):
- tokens = []
- while s:
- c = s[:1]
- if c in whitespace:
- s = s[1:]
- elif c == ';':
- s = ''
- elif c == '"':
- n = len(s)
- i = 1
- while i < n:
- c = s[i]
- i = i+1
- if c == '"': break
- if c == '\\': i = i+1
- tokens.append(s[:i])
- s = s[i:]
- elif c in operators:
- tokens.append(c)
- s = s[1:]
- else:
- n = len(s)
- i = 1
- while i < n:
- if s[i] in separators: break
- i = i+1
- tokens.append(s[:i])
- s = s[i:]
- return tokens
-
-
-# Tokenize a whole file (given as file object, not as file name).
-# Return a list of tokens (strings).
-#
-def tokenize_file(fp):
- tokens = []
- while 1:
- line = fp.readline()
- if not line: break
- tokens = tokens + tokenize_string(line)
- return tokens
-
-
-# Exception raised by parse_exr.
-#
-syntax_error = 'syntax error'
-
-
-# Parse an S-expression.
-# Input is a list of tokens as returned by tokenize_*().
-# Return a pair (expr, tokens)
-# where expr is a list representing the s-expression,
-# and tokens contains the remaining tokens.
-# May raise syntax_error.
-#
-def parse_expr(tokens):
- if (not tokens) or tokens[0] != '(':
- raise syntax_error, 'expected "("'
- tokens = tokens[1:]
- expr = []
- while 1:
- if not tokens:
- raise syntax_error, 'missing ")"'
- if tokens[0] == ')':
- return expr, tokens[1:]
- elif tokens[0] == '(':
- subexpr, tokens = parse_expr(tokens)
- expr.append(subexpr)
- else:
- expr.append(tokens[0])
- tokens = tokens[1:]
-
-
-# Parse a file (given as file object, not as file name).
-# Return a list of parsed S-expressions found at the top level.
-#
-def parse_file(fp):
- tokens = tokenize_file(fp)
- exprlist = []
- while tokens:
- expr, tokens = parse_expr(tokens)
- exprlist.append(expr)
- return exprlist
-
-
-# EXAMPLE:
-#
-# The input
-# '(hip (hop hur-ray))'
-#
-# passed to tokenize_string() returns the token list
-# ['(', 'hip', '(', 'hop', 'hur-ray', ')', ')']
-#
-# When this is passed to parse_expr() it returns the expression
-# ['hip', ['hop', 'hur-ray']]
-# plus an empty token list (because there are no tokens left.
-#
-# When a file containing the example is passed to parse_file() it returns
-# a list whose only element is the output of parse_expr() above:
-# [['hip', ['hop', 'hur-ray']]]
-
-
-# TOKENIZING:
-#
-# Comments start with semicolon (;) and continue till the end of the line.
-#
-# Tokens are separated by whitespace, except the following characters
-# always form a separate token (outside strings):
-# ( ) '
-# Strings are enclosed in double quotes (") and backslash (\) is used
-# as escape character in strings.