| 131 | print("unchanged.") |
| 132 | |
| 133 | class FutureFinder: |
| 134 | |
| 135 | def __init__(self, f, fname): |
| 136 | self.f = f |
| 137 | self.fname = fname |
| 138 | self.ateof = 0 |
| 139 | self.lines = [] # raw file lines |
| 140 | |
| 141 | # List of (start_index, end_index, new_line) triples. |
| 142 | self.changed = [] |
| 143 | |
| 144 | # Line-getter for tokenize. |
| 145 | def getline(self): |
| 146 | if self.ateof: |
| 147 | return "" |
| 148 | line = self.f.readline() |
| 149 | if line == "": |
| 150 | self.ateof = 1 |
| 151 | else: |
| 152 | self.lines.append(line) |
| 153 | return line |
| 154 | |
| 155 | def run(self): |
| 156 | STRING = tokenize.STRING |
| 157 | NL = tokenize.NL |
| 158 | NEWLINE = tokenize.NEWLINE |
| 159 | COMMENT = tokenize.COMMENT |
| 160 | NAME = tokenize.NAME |
| 161 | OP = tokenize.OP |
| 162 | |
| 163 | changed = self.changed |
| 164 | get = tokenize.generate_tokens(self.getline).__next__ |
| 165 | type, token, (srow, scol), (erow, ecol), line = get() |
| 166 | |
| 167 | # Chew up initial comments and blank lines (if any). |
| 168 | while type in (COMMENT, NL, NEWLINE): |
| 169 | type, token, (srow, scol), (erow, ecol), line = get() |
| 170 | |
| 171 | # Chew up docstring (if any -- and it may be implicitly catenated!). |
| 172 | while type is STRING: |
| 173 | type, token, (srow, scol), (erow, ecol), line = get() |
| 174 | |
| 175 | # Analyze the future stmts. |
| 176 | while 1: |
| 177 | # Chew up comments and blank lines (if any). |
| 178 | while type in (COMMENT, NL, NEWLINE): |
| 179 | type, token, (srow, scol), (erow, ecol), line = get() |
| 180 | |
| 181 | if not (type is NAME and token == "from"): |
| 182 | break |
| 183 | startline = srow - 1 # tokenize is one-based |
| 184 | type, token, (srow, scol), (erow, ecol), line = get() |
| 185 | |
| 186 | if not (type is NAME and token == "__future__"): |
| 187 | break |
| 188 | type, token, (srow, scol), (erow, ecol), line = get() |
| 189 | |
| 190 | if not (type is NAME and token == "import"): |