diff options
Diffstat (limited to 'chall/ply-2.2/example/yply/ylex.py')
| -rw-r--r-- | chall/ply-2.2/example/yply/ylex.py | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/chall/ply-2.2/example/yply/ylex.py b/chall/ply-2.2/example/yply/ylex.py deleted file mode 100644 index 67d2354..0000000 --- a/chall/ply-2.2/example/yply/ylex.py +++ /dev/null @@ -1,112 +0,0 @@ -# lexer for yacc-grammars -# -# Author: David Beazley (dave@dabeaz.com) -# Date : October 2, 2006 - -import sys -sys.path.append("../..") - -from ply import * - -tokens = ( - 'LITERAL','SECTION','TOKEN','LEFT','RIGHT','PREC','START','TYPE','NONASSOC','UNION','CODE', - 'ID','QLITERAL','NUMBER', -) - -states = (('code','exclusive'),) - -literals = [ ';', ',', '<', '>', '|',':' ] -t_ignore = ' \t' - -t_TOKEN = r'%token' -t_LEFT = r'%left' -t_RIGHT = r'%right' -t_NONASSOC = r'%nonassoc' -t_PREC = r'%prec' -t_START = r'%start' -t_TYPE = r'%type' -t_UNION = r'%union' -t_ID = r'[a-zA-Z_][a-zA-Z_0-9]*' -t_QLITERAL = r'''(?P<quote>['"]).*?(?P=quote)''' -t_NUMBER = r'\d+' - -def t_SECTION(t): - r'%%' - if getattr(t.lexer,"lastsection",0): - t.value = t.lexer.lexdata[t.lexpos+2:] - t.lexer.lexpos = len(t.lexer.lexdata) - else: - t.lexer.lastsection = 0 - return t - -# Comments -def t_ccomment(t): - r'/\*(.|\n)*?\*/' - t.lineno += t.value.count('\n') - -t_ignore_cppcomment = r'//.*' - -def t_LITERAL(t): - r'%\{(.|\n)*?%\}' - t.lexer.lineno += t.value.count("\n") - return t - -def t_NEWLINE(t): - r'\n' - t.lexer.lineno += 1 - -def t_code(t): - r'\{' - t.lexer.codestart = t.lexpos - t.lexer.level = 1 - t.lexer.begin('code') - -def t_code_ignore_string(t): - r'\"([^\\\n]|(\\.))*?\"' - -def t_code_ignore_char(t): - r'\'([^\\\n]|(\\.))*?\'' - -def t_code_ignore_comment(t): - r'/\*(.|\n)*?\*/' - -def t_code_ignore_cppcom(t): - r'//.*' - -def t_code_lbrace(t): - r'\{' - t.lexer.level += 1 - -def t_code_rbrace(t): - r'\}' - t.lexer.level -= 1 - if t.lexer.level == 0: - t.type = 'CODE' - t.value = t.lexer.lexdata[t.lexer.codestart:t.lexpos+1] - t.lexer.begin('INITIAL') - t.lexer.lineno += t.value.count('\n') - return t - -t_code_ignore_nonspace = r'[^\s\}\'\"\{]+' -t_code_ignore_whitespace = r'\s+' -t_code_ignore = "" - -def t_code_error(t): - raise RuntimeError - -def t_error(t): - print "%d: Illegal character '%s'" % (t.lineno, t.value[0]) - print t.value - t.lexer.skip(1) - -lex.lex() - -if __name__ == '__main__': - lex.runmain() - - - - - - - |
