s9e /
SourceOptimizer
| @@ 217-229 (lines=13) @@ | ||
| 214 | * |
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| 215 | * @return array|string|false |
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| 216 | */ |
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| 217 | public function lookahead() |
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| 218 | { |
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| 219 | $i = $this->offset; |
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| 220 | while (++$i < $this->cnt) |
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| 221 | { |
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| 222 | if (isset($this->tokens[$i])) |
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| 223 | { |
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| 224 | return $this->tokens[$i]; |
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| 225 | } |
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| 226 | } |
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| 227 | ||
| 228 | return false; |
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| 229 | } |
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| 230 | ||
| 231 | /** |
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| 232 | * Peek at the previous token |
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| @@ 236-248 (lines=13) @@ | ||
| 233 | * |
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| 234 | * @return array|string|false |
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| 235 | */ |
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| 236 | public function lookbehind() |
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| 237 | { |
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| 238 | $i = $this->offset; |
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| 239 | while (--$i >= 0) |
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| 240 | { |
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| 241 | if (isset($this->tokens[$i])) |
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| 242 | { |
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| 243 | return $this->tokens[$i]; |
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| 244 | } |
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| 245 | } |
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| 246 | ||
| 247 | return false; |
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| 248 | } |
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| 249 | ||
| 250 | /** |
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| 251 | * Move to the next token in the stream |
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